30,772 results
Search Results
2. Review on Application of Near-Infrared Spectroscopy Identification Technology in Sorting Impurities from Waste Paper
- Author
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Hai Ming Xin, Cheng Min Gao, and Dong Ri Shan
- Subjects
Identification (information) ,Engineering ,Identification technology ,Waste management ,business.industry ,General Engineering ,Sorting ,Waste paper ,Process engineering ,business - Abstract
With rapid increase of waste paper recycling, more and more researchers focus on the advanced technologies of sorting impurities form waste paper. The principals of main identification and sorting technologies are introduced in this paper, whose advantages and disadvantages are discussed. Because of importance of sorting technologies based on near-infrared spectroscopy, we emphasis its principle, application and research status etc.. At last, research and development tendency of identification and sorting technology are prospected.
- Published
- 2014
3. Study of Advanced Oxidation Technology on Post Treatment Wastewater of Pulp & Paper Mills
- Author
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Hao Yu Wang, Fang Chang, Ting Zhi Liu, and Shuai Li
- Subjects
Reaction conditions ,Waste management ,Treated water ,Settling time ,business.industry ,Chemistry ,Pulp (paper) ,General Engineering ,Paper mill ,engineering.material ,Pulp and paper industry ,Fenton oxidation ,Wastewater ,engineering ,Post treatment ,business - Abstract
In this article, Fenton oxidation treatment technology was employed to the improving of quality of post treated wastewater from pulp & paper mills in order to increase the recycling ratio of final treated wastewater. The reaction conditions were optimized through single-factor experiments and the removal of color were tested for the optimizing. It was found in this study that the color of Fenton oxidation treated water was variegated with the extending of settling time. The optimized conditions were: Dosage of H2O2 was 682.1mg/L(30% m/m), 1.5 times theoretical consumption, 205mg/L FeSO47H2O (H2O2:FeSO4=15:1), the initial pH and the reaction time were 4.5 and 40min, respectively. The removal of the color and COD were 51.3% and 80% after Fenton treatment. GC-MS analysis shown that the contents of organic extracts and most of organic compounds reduced significantly after the oxidational treatment.
- Published
- 2014
4. Experimental Study on Supercritical Water Oxidation of Paper Mill Sludge
- Author
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Li Li Qian, Jie Zhang, and Shuzhong Wang
- Subjects
Pollution ,Supercritical water oxidation ,Materials science ,Waste management ,business.industry ,Scientific method ,media_common.quotation_subject ,General Engineering ,Paper mill ,Residence time (fluid dynamics) ,business ,Water content ,media_common - Abstract
Paper industry produces large amounts of sludge with about 65wt% moisture content. Due to its complex composition, the charge of traditional disposal method is high and easy to bring about secondary pollution. In this paper, the influences of temperature, oxidation coefficient and residence time on the performance of supercritical water oxidation (SCWO) of paper mill sludge were investigated. The results show that SCWO can almost completely eliminate organics in sludge and obtain transparent liquid products meeting relative national standards at 550°C, 5min with an oxidation coefficient of 3.0. However, during this process, TN changes to NH3-N, so NH3-N in liquid products increases with operation parameters, indicating the recalcitrant nature of NH3-N, and which needs further treatment.
- Published
- 2014
5. Co-Combustion of Paper Mill Sludge and Bituminous Coal in Air Using Thermogravimetric Analyzer
- Author
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Zi Lin Cai, Xiaoqian Ma, Yu Zhong Li, and Yu Ting Tang
- Subjects
Bituminous coal ,Thermogravimetric analysis ,Materials science ,Waste management ,business.industry ,geology.rock_type ,General Engineering ,geology ,Paper mill ,Combustion ,business ,Pulp and paper industry - Abstract
The combustion of paper mill sludge and bituminous coal in air was analyzed using a thermogravimetric instrument. TG and DTG curves for the blends lies between that of the individual fuels, and the main combustion characteristics of blends depended on individual fuels and followed the weighted average. As the blending ratio of paper mill sludge was increased from 10% to 90%, the ignite temperature (Ti) decreased from 529.6°C. to 275.6°C., and residual weight increased from 19.28% to 47.39%. The TG profiles of sample were almost the same at different heating rates, however there was a big difference between the DTG profiles. The maximum weight loss rate of sample increased obviously with the increment of heating rate. This work contributes to the comprehensive understanding of paper mill sludge and bituminous coal combustion and development of co-combustion technology.
- Published
- 2013
6. The Revelation Research of Folk Paper-Cut Creation Concept on Modern Product Design
- Author
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Li Ling Chen, Yuan Yuan Zhao, Jun Xuan Chen, and Suihuai Yu
- Subjects
Engineering ,Local culture ,Product design ,business.industry ,Paper cut ,General Engineering ,medicine.disease ,Revelation ,Variety (cybernetics) ,Order (exchange) ,Aesthetics ,medicine ,business ,Simple (philosophy) ,Folk culture - Abstract
Paper cutting, as an ancient and unique Chinese characteristics of the folk traditional culture elements, comes from people's daily life, which reflects people's the most simple pursuit and yearning for a better life , is an embodiment of a traditional concept of creation in life. As the time goes on, the full integration of folk paper-cut with local culture and a variety of unique styles embodies the concept of creation and the origin of cultural spirit is a great help to the modern design. With the exploration of paper-cut culture, this paper researches the modern product design, inspirates from its creation technique and art, in order to inherit the ancient folk culture, at the same time, gives some help to the product design in the new era.
- Published
- 2014
7. On Evaluation Model of Green Technology Innovation Capability of Pulp and Paper Enterprise Based on Support Vector Machines
- Author
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Zhi Fang Zhou
- Subjects
Support vector machine ,Engineering ,Artificial neural network ,Index system ,business.industry ,Pulp (paper) ,Evaluation methods ,Radial basis function kernel ,General Engineering ,engineering.material ,Technology innovation ,business ,Industrial engineering - Abstract
Based on the analysis of the concept of green technology innovation capability, this paper not only structures the evaluation index system of green technology innovation capability in pulp and paper enterprises, builds the evaluation model of green technology innovation capability for pulp and paper enterprises based on Support Vector Machines with Radial Basis Function kernel, but also achieves the optimization of kernel function parameters, penalty factors and insensitive parameters based on a heuristic algorithm for tuning hyper-parameters. This model is more suitable for pulp and paper enterprises to evaluate green technology innovation capability, compared with the evaluation method of BP neural network.
- Published
- 2014
8. Physical Properties of Yarn from Paper Mulberry
- Author
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Kajijarus Piromthamsiri, Sakorn Chonsakorn, and Chanchai Sirikasemlert
- Subjects
Engineering ,Textile ,biology ,business.industry ,General Engineering ,Paper mulberry ,Yarn ,biology.organism_classification ,Tenacity (mineralogy) ,visual_art ,visual_art.visual_art_medium ,Textile fiber ,Fiber ,Composite material ,Yarn count ,business ,Spinning - Abstract
This research were examined the spinning processes of paper mulberry yarn and also investigated the physical properties of paper mulberry yarn. The results show that a possibilities of spinning of paper mulberry fiber into yarn which is a longitudinal view similar to that of cotton. An average yarn count, tenacity and elongation are 1,022 tex, 66.39 cN/tex, and 17.80%, respectively. These results represent the beginning of the research to rescue traditional knowledge, combined with the possibility of the introduction of a new textile fiber on the market.
- Published
- 2013
9. Physical Properties of Woven Fabric from Paper Mulberry Yarn
- Author
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Chanchai Sirikasemlert, Sakorn Chonsakorn, and Kajijarus Piromthamsiri
- Subjects
Materials science ,Textile ,biology ,Polymer science ,business.industry ,General Engineering ,Paper mulberry ,Yarn ,biology.organism_classification ,chemistry.chemical_compound ,chemistry ,visual_art ,Woven fabric ,visual_art.visual_art_medium ,Fiber ,Composite material ,Cellulose ,business ,Weaving ,Spinning - Abstract
This research were examined the characteristics chemical and physicalof paper mulberry fiber and also developed the spinning processes of paper mulberry yarn to make the fabric by weaving and knitting. The chemical composition of paper mulberry fiber was approximately 72.5% cellulose, while hemi-cellulose, lignin, pectin, and water-soluble were 17, 2.6, 2.3, and 5.6%, respectively. The characteristics and physical properties of paper mulberry fabric were also investigated.
- Published
- 2013
10. Preparation of Paper-Based Printing Plate and its Ink-Water Balance Performance Analysis
- Author
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Xiao Xiu Hao, Na Wei, and Cheng Sun
- Subjects
Engineering drawing ,Inkwell ,business.industry ,General Engineering ,Base (geometry) ,Mechanical engineering ,Paper based ,engineering.material ,Blank ,Coating ,visual_art ,engineering ,visual_art.visual_art_medium ,Offset printing ,business - Abstract
The principle of offset printing is the graphic part lipophilicity and the blank part oleophobic hydrophilic. Based on the ink-water balance theory, this paper mainly discusses the base paper and the coating formulations of paper-based printing plate. In this paper the properties of the paper-based printing plate of the different coating formulations were detected and evaluated, meanwhile these plates were tested in the offset printing. Based on the detection of print quality, plate coating performance and the number of copies printed, the base paper and coating formulations of this plate was be determined. The results of this study for this plate have some significance in the actual production.
- Published
- 2013
11. Brief Discussion on Manufacture and Application Value of Modern Paper-Cut Animation
- Author
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Wen Zhang and Ji Cheng Xie
- Subjects
Value (ethics) ,Engineering ,Service (systems architecture) ,Charm (programming language) ,Multimedia ,business.industry ,Paper cut ,General Engineering ,Animation ,computer.software_genre ,medicine.disease ,GeneralLiterature_MISCELLANEOUS ,Non-photorealistic rendering ,medicine ,business ,computer ,ComputingMethodologies_COMPUTERGRAPHICS ,Computer technology ,Folk culture - Abstract
Paper-cut animation is rooted in Chinese folk culture, which is an important constituent part of Chinese animation. This article has analyzed the own artistic charm of paper-cut animation, from the early traditional manufacturing method and its insufficiencies as well as the questions we faced, to details of the new manufacturing method after the application of modern computer technology to the paper-cut animation. Also the article emphasizes the introduction of manufacturing advantages after the computer technology applied to the paper-cut animation, as well as discussions on application value of paper-cut animation in business and service domains, etc.
- Published
- 2013
12. Research Advance on the Drying Section of Paper Machine
- Author
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Ji Xian Dong, Zhi Guo Chang, and Jiang Miao Yi
- Subjects
International research ,Engineering ,business.product_category ,Process (engineering) ,business.industry ,Papermaking ,General Engineering ,Mechanical engineering ,Paper quality ,Manufacturing engineering ,Bottleneck ,Paper machine ,Section (archaeology) ,business - Abstract
The drying section of paper machine is not only the major energy-consuming parts of the papermaking process, but also one of the main bottleneck restricting the speed, yield and paper quality. So the research on the drying section has attracted much attention at home and abroad. In view of the traditional steam dryer shortcomings, this paper first introduces two kinds of improvement measures —— the tubulator bar and the siphon which can improve the efficiency of the traditional steam dryer. With the development of the paper industry, domestic and international research on the new type of paper drying technology has achieved some success. Then, we analyse their working principle and characteristic, and conclude that multi-channel dryer has a broad research and application prospects.
- Published
- 2012
13. Study on Production Technology of Paper Wooden Compound Pallets
- Author
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Shuang Ling Wu, Xin Sun, Jun Yan Huang, Jie Ma, and Jian Hai Guo
- Subjects
Engineering ,Coated paper ,business.industry ,Particle board ,law ,General Engineering ,Pallet ,Composite material ,Raw material ,business ,Process engineering ,law.invention - Abstract
The paper wooden compound pallets are produced through the processing and assembly by using particle board, paper tubes and PE coated paper board as raw materials. Comparing with traditional wooden flat plate, the new type of green environmental protection pallets has many advantages such as high strength, light weight, low cost, waterproof, anti-moth-eaten, no need fumigation, etc. is an ideal green transport packaging materials for export commodities. The paper discusses and probes into the process and technology of paper wooden compound pallets.
- Published
- 2013
14. Study on Paper Electromagnetic Drying Rate
- Author
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Zhao Hui Zhen and Zheng Shun Wang
- Subjects
Engineering ,Waste management ,business.industry ,General Engineering ,Toilet paper ,Meaning (existential) ,Environmental pressure ,Process engineering ,business - Abstract
Paper electromagnetic drying technology is a new paper drying technology different from traditional steam drying. Today, environmental pressure deteriorating, energy crisis approaching, doing researches on paper electromagnetic drying technology has a special meaning, especially to high speed toilet paper machine which is truly needed and has a vast developmental potential. This thesis is based on electromagnetic dryer and steam dryer study. And the changes measured in the experiment at diverse temperatures and quantities in the experiment has shown a higher efficiency of electromagnetic drying technology than conventional steam drying technology.
- Published
- 2013
15. Deinking Technology and Deinking Agent of Waste Paper
- Author
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Lin Tong Wang, Yong Sheng Ma, and Xian Hui Sun
- Subjects
Engineering ,business.industry ,law ,Papermaking ,General Engineering ,Waste paper ,business ,Pulp and paper industry ,Deinking ,law.invention - Abstract
Recycling of waste paper is one of pop topics of pulping and papermaking industry. Deinking technology is the key of recycling of waste paper. It is briefly introduced that methods of waste paper deinking and mechanism of deinking and constitute of deinking agent.
- Published
- 2011
16. Simulation Research about Web Press Paper Tape the Second Time Tension Control Based on MATLAB
- Author
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Yu Qiu Sun
- Subjects
Engineering ,Engineering drawing ,business.industry ,Paper tape ,Tension (physics) ,Control (management) ,Tension control ,General Engineering ,Control engineering ,restrict ,Factor (programming language) ,Graph (abstract data type) ,business ,MATLAB ,computer ,computer.programming_language - Abstract
It is an important factor that the paper tension for web press printing and roll paper manufacture. Especially commerce web press is the more important. The commerce web press has not only the first tension control, but also the second tension control. The second tension control would control tension wave restrict accurate bound. The simulation method was discussed about paper tape tension the second tension control on some problems of high speed Web press controlling system in actual adjustment course, and different respond graph was obtained on the different controlling parameter by MATLAB and controlling system capability target. Intuitionistic and exact foundation was offered for system analysis, comparison and choice arithmetic, which benefits the further research.
- Published
- 2012
17. Paper Pulp Molding Products Structural Design
- Author
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Xiu Fu Wu and Fu Ting Wang
- Subjects
Materials science ,business.industry ,Mold ,Pulp (paper) ,General Engineering ,medicine ,engineering ,engineering.material ,Packaging and labeling ,medicine.disease_cause ,Process engineering ,business ,Processing methods - Abstract
Paper pulp molding products meet the product-protecting requirements and operating requirements through all kinds of structural forms in the application of product packaging, fixation and product buffering shockproof. Paper pulp molding products structural design influences the buffering performance of paper pulp molding products and packaging requirements of the products, therefore influences the packaging structure, processing production, mold design and processing method of paper pulp molding products.
- Published
- 2012
18. Study on Making Low Density Printing Paper with Aspen BECMP as the Main Pulp
- Author
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Jun Qing Zhang, Jin Quan Yue, Yang Zhou, and Wei Lu
- Subjects
Materials science ,business.industry ,Pulp (paper) ,Ultimate tensile strength ,General Engineering ,engineering ,Low density ,Lower cost ,engineering.material ,Composite material ,Process engineering ,business - Abstract
Low density printing paper was widely used in printing best-seller at present. Besides of high bulk, good stiffness, soft color, it also had some advantages, such as reducing user’s load, protecting eyes, extending the storage time etc. Quality index of domestic low density printing paper was lower than foreign index. The gap mainly expressed on tensile index specially. This study used Aspen BECMP as main pulp, as a result of its higher strength, lower cost and other advantages comparing with PRC-APMP. Here we discussed three pulps ratio to make low density printing paper. The results of experiment indicated that using Aspen BECMP was able to make low density printing paper by adding certain amount chemistry pulp. Moreover, the best bulk value can up to 2.45cm3/g, and the tensile index was 36.08Nm/g.
- Published
- 2012
19. Research of the Paper Defect On-Line Inspection System Based on Distributed Machine Vision
- Author
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Xing Guang Qi and Yi Zhen
- Subjects
Paper sheet ,Production line ,Engineering ,Large field of view ,business.industry ,Machine vision ,Gigabit Ethernet ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,General Engineering ,Linear array ,Computer vision ,Artificial intelligence ,Line (text file) ,business ,Computer hardware ,Large fov - Abstract
This paper presents a distributed machine vision inspection system, which has a large field of view (FOV) and can perform high precision, high speed real-time inspection for wide paper sheet detection. The system consists of multiple GigE Vision linescan cameras which connected though Gigabit Ethernet. The cameras are arranged into a linear array so that every camera’s FOV is merged into one large FOV in the meantime the resolution keeps unchanged. In order to acquire high processing speed, the captured images from each camera are sent into one dedicate computer for distributed and parallel image processing. Experimental results show that the system with fine detection capability can satisfy the requirements of real time detection and find out the defects on the production line effectively.
- Published
- 2012
20. Paper Machine Bearing’s Temperature and Air-Velocity Optimization under Air-Oil Lubrication
- Author
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Gong Bo Han, Feng Zhang, and Su Xia Duan
- Subjects
geography ,Bearing (mechanical) ,Materials science ,business.product_category ,geography.geographical_feature_category ,Field (physics) ,business.industry ,General Engineering ,Base (geometry) ,Mechanical engineering ,Computational fluid dynamics ,Inlet ,law.invention ,Paper machine ,law ,Lubrication ,Fluent ,business - Abstract
The purpose of this resarch was investigated the air-oil temperature field distribution under air-oil lubrication and oil lublubrication, meanwhile also study the air-oil lubrication effect under different air velocity inlet the bearing cavities of the high-speed paper machine dryer section. Base on the CFD theory, the temperature field of CARB bearing outer ring and the velocity field of the bearing cavities were simulated by the FLUENT software.Result show that air-oil lubricatin can reach the same cooling effect is contras with oil lubrication in the same heat production by roller; the best air-velocity value of air-oil lubrication system is obtain for the change of temperature and pressure in bearing cavities. It is confirm that the air-oil lubrication is viable in the high-speed paper machine dryer section.
- Published
- 2012
21. Study on Coating Surface Topography and Properties of Coated Paper Related to Pigment
- Author
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Bei Hai He and Ying Li
- Subjects
Coated paper ,Materials science ,Inkwell ,Scanning electron microscope ,business.industry ,General Engineering ,Surface finish ,engineering.material ,Gloss (optics) ,chemistry.chemical_compound ,Pigment ,Calcium carbonate ,Optics ,Coating ,chemistry ,visual_art ,engineering ,visual_art.visual_art_medium ,Composite material ,business - Abstract
The physical structure and chemical properties of coating layer have an important influence on transferring and setting of the printing ink. In this study, the effect of pigment on coating layer structure and surface properties was investigated. The surface topography was explored using scanning electron microscopy (SEM) and atomic force microscopy (AFM). The findings indicated that the pigment affected the pore size, depth and distribution of the coated paper surface. The conclusions were drawn that coating could improve coating surface topography and calcium carbonate pigment compared with kaolin pigment was not good to the paper surface properties, which resulted in high roughness, low paper gloss, high ink absorption and low paper surface efficiency.
- Published
- 2012
22. Design and Modeling of Cutting Paper Tape Machine for Sole Coating
- Author
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Chao Hui Hao and Chuan Zhu Sun
- Subjects
Scheme (programming language) ,Electric motor ,Worm drive ,business.product_category ,business.industry ,Paper tape ,General Engineering ,Mechanical engineering ,engineering.material ,Stress strength ,Parametric design ,Coating ,engineering ,business ,computer ,Simulation ,computer.programming_language ,Transmission ratio - Abstract
For the family embarrassment and annoyance brought by the replacement of slippers when someone pays a visit, a cutting paper tape machine for sole coating was designed. Based on the detailed calculation and preliminary drafted general design scheme, the electric motor was chosen, the transmission ratio was distributed reasonably, the structural style and related parameters of worm gear were designed, and the stress strength was checked. Based on these, the three-dimensional model was established, through simply simulation, the scheme was verified and improved, and the parametric design was realized. Thus, one kind of convenient and practical cutting paper tape machine for sole coating is provided for families and high-grade places, which is greatly convenient to visitors.
- Published
- 2012
23. The Application of ACS800 Inverter in Load Distribution of Paper Machine
- Author
-
Bin Zhou, Yan Jing Meng, and Yuan Yuan Liu
- Subjects
Paper machine ,business.product_category ,Computer science ,Process (computing) ,Electronic engineering ,General Engineering ,Inverter ,Load distribution ,Control engineering ,Transmission system ,business - Abstract
This article states the principle and design method of load distribution, discussing the problems and solutions in the process of designing load distribution; the description about the importance of designing load distribution in the paper machine transmission system provides a theoretical proof to avoid uneven load distribution. And in this paper, the application of ACS800’s DTC inverter in load distribution of 2640/500 three fleeting multi-cylinder paper machine is introduced. The inverter’s communication, automatic interlock and parameter’ setting are presented. The application in practice proves that the result is effective. Meanwhile the attentive matters in practice are also provided.
- Published
- 2012
24. Design Research on Feeding Paper Machine of Printing Press
- Author
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Dong Chun Zhang, Qiu Yan Sun, Xin Yue Li, and Yu Cheng
- Subjects
Structure (mathematical logic) ,Engineering ,business.product_category ,business.industry ,media_common.quotation_subject ,General Engineering ,Control engineering ,Industrial engineering ,law.invention ,Printing press ,Mechanism (engineering) ,Paper machine ,law ,Slider ,Component (UML) ,Transfer mechanism ,Function (engineering) ,business ,media_common - Abstract
The article introduces each component of feeding paper machine of printing press which are press feet mechanism, paper separation mechanism and paper transfer mechanism, the function and the principle of work. Each mechanism is undertook a variety of designs and we choose the best design of each structure according to its functions. Design adopted is as follows: Press feet mechanism adopts the cam-linkage mechanism; Paper separation mechanism adopts the cam-linkage slider mechanism; Paper transfer mechanism adopts the conjugate cam-linkage slider mechanism. The machine is simple, practical and reliable.
- Published
- 2011
25. Study on Application Performance of Water-Based Pigment Ink on Uncoated Paper
- Author
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Hua Fang, Wei Wei Li, Lu Hai Li, Xu Wei Hu, Xian Leng, Wen Bo Li, Shu Kun Li, and Li Xin Mo
- Subjects
Coated paper ,Materials science ,Inkwell ,business.industry ,General Engineering ,Contact angle ,Pigment ,Gamut ,Optics ,visual_art ,visual_art.visual_art_medium ,Wetting ,Composite material ,business ,Dissolution ,Hue - Abstract
The performances of three kinds of water-based pigment inks were compared and studied, which include self-made ink, original printing ink and compatible ink. Art paper, matte paper and white card paper were used as the substrates. Testing the contact angle of ink droplets, the spreading, wetting, and drying rate of inks were investigated. The color density and CIE L*a*b* values of the printed samples were measured, to evaluate the hue error and color gamut. The water resistance was studied with corresponding experiments. The result indicates: self-made water-based pigment ink has the smallest contact angle on coated paper, showing a faster drying rate. Its color gamut is similar to the original printing ink on art paper, and the hue error is low. Through the water resistance test, the color density measured on art paper and matte paper had no changes, without color dissolving and color fading, showing good water resistance applicability.
- Published
- 2011
26. Research on a New and Green Paper Bottle of Chinese White Spirit Packaging
- Author
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Xiao Fang Wang
- Subjects
Architectural engineering ,Engineering ,business.product_category ,Green paper ,business.industry ,education ,General Engineering ,food and beverages ,humanities ,chemistry.chemical_compound ,Impact resistance ,Physical performance test ,chemistry ,Bottle ,Forensic engineering ,business ,White spirit - Abstract
The culture of Chinese white spirit is time-honored, and it’s loved by all Chinese people, so it’s also important of white spirit packaging. The paper puts forward a new and green solution of white spirit packaging with paper bottle, it’s made with mulberry/rice paper and animal blood. The paper bottle is light and green, and increases the white spirit’s nutrition value. There are several physical and chemical tests in the paper just to justify the new bottle’s performance. Physical performance test includes appearance defect test, compression and stacking test, impact resistance test, water impact strength test, permeability test and so on. Chemical performance evaluation includes stability, compatibility and endurance.
- Published
- 2011
27. Study of the Paper Consumption Pattern Based on the Low-Carbon Development of Cities in China
- Author
-
Zhi Jian Li and Qing Han
- Subjects
Consumption (economics) ,Natural resource economics ,General Engineering ,Paper production ,Environmental engineering ,Business ,China - Abstract
With the widespread use of paper and paper products in China especially in cities, the subsequent negative impact becomes apparent. In the course of paper production and processing, resources and energy are consumed, with large amounts of carbon dioxide emitted, which greatly affects the low-carbon development of cities. Therefore, aiming at the characteristics of current way of paper consumption among urban residents in China, the consumption pattern of paper and paper products based on the low-carbon development of cities is put forward.
- Published
- 2011
28. The Stickies Removal by Steam Explosion from Recovered Paper
- Author
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Fang Lin Wei, Lian Xin Luo, and Shuangfei Wang
- Subjects
Waste management ,business.industry ,Pulp (paper) ,General Engineering ,food and beverages ,Sodium silicate ,Stickies ,engineering.material ,chemistry.chemical_compound ,chemistry ,engineering ,business ,After treatment ,Steam explosion - Abstract
The object of this work is to evaluate the optimal process of stickies removal on steam-explosion pulping from recovered paper. OCC (Old Corrugated Container), offset paper and coated art paper are presented for steam-explosion treatment. The parameters tested by single-factor tests are: liquor, explosion pressure, heat preservation time, and the charge of sodium hydrate and sodium silicate. The criterion used to characterize the stickies removal efficiency is the consistence of macrostickies and DCS in pulp after treatment. The compositional analysis are achieved the optimal explosion conditions. The use of steam explosion would be desirable in dealing with recovered paper.
- Published
- 2011
29. Surface Coatings Based on Carbon Paper and its Electromagnetic Shielding Property
- Author
-
Jing An Yu, Jiang Lin, and Zhi Jun Hu
- Subjects
business.product_category ,Materials science ,Frequency band ,General Engineering ,Substrate (printing) ,engineering.material ,Coating ,Electromagnetic shielding ,engineering ,Carbon paper ,Composite material ,business ,Absorption (electromagnetic radiation) ,Electrical conductor ,Layer (electronics) - Abstract
Carbon fiber paper was coated with multiple layers coating composed by conductive and magnetic fillers. The electromagnetic shielding and conductive properties of the coating were investigated. The effluencing factors such as the ratio of conductive and magnetic fillers, the composition of magnetic fillers, the contrast of coating method, the structure of shielding layer were assessed according with effectiveness. The results showed the best component for the coating layer was: conductive substrate, conductive coating layer and magnetic coating layer sequently. The compound of magnetic fillers with differenet electromagnetic interaction mechanism would produce a complementary magnetic loss, and display a high absorption in broader frequency band. The shielding effectiveness of multi-layer coated carbon fiber paper at 1.5 GHz was shown up to 45 dB.
- Published
- 2011
30. Cleaner Production Technology on Controlling Emissions of Unintentionally Produced PCDD/Fs from Non-Wood Pulp and Paper Mills in China
- Author
-
Guo Yu Sun and Wei Li
- Subjects
Pollutant ,Engineering ,Waste management ,business.industry ,Pulp (paper) ,General Engineering ,chemistry.chemical_element ,Elemental chlorine free ,engineering.material ,Raw material ,chemistry ,Wastewater ,Chlorine ,Cleaner production ,business - Abstract
As one of the main emission sources of PCDD/Fs, the pulp and paper industry has always been public concerns. In China, the consumption of non-wood fiber as raw material of pulp accounts for a relatively larger proportion in the total productivity. Here, the unintentionally produced PCDD/Fs emissions of five Chinese non-wood pulp and paper mills were investigated. The results showed that the increment of PCDD/Fs after bleaching with chlorine was about 1.71-28.19 times in pulp and 3.96-28.82 times in wastewater based on the existing technologies. In order to reduce the unintentional production of PCDD/Fs, the BAT/BEP transformation program was proposed as cleaner production initiatives featured by less or free use of chlorine in bleaching process, and evaluated by reduction effects and costs. The study showed the application of Elemental Chlorine Free (ECF) sequences in bleaching process with improving technologies in other production stages would effectively decrease the generation of PCDD/Fs, other pollutant load as well as the water consumptions.
- Published
- 2011
31. Research and Application of Paper Machine Frequency Conversion Driving System Based on PLC
- Author
-
Wen Bo Liu and De Yu Xu
- Subjects
Engineering ,business.product_category ,Data collection ,business.industry ,Field bus ,General Engineering ,Control engineering ,Load distribution ,Frequency conversion ,Paper machine ,Chain (algebraic topology) ,Control system ,Electronic engineering ,business ,Realization (systems) - Abstract
This paper studied some kinds of realization modes of speed chain compute, load distribution and operation aimed at the realization of paper machine driving system. The frequency conversion control system based on PLC cooperating with digital manipulator was brought forward. It was mainly made up of three parts: PLC, frequency converter and digital manipulator. It used PLC to realize digital speed chain and load distribution. And it exchanged data and parameters by communication through field bus network. The results indicate that the problems of speed chain compute, load distribution and operation were solved effectively by data gathering and computing with PLC, so it is a driving system of high performance.
- Published
- 2011
32. The Superwater Using to Control Slime Pulp in Packing Paper and Optimize Close System of Whitewater
- Author
-
Zhi Jian Li, Fei Du, and Xiao Ming Fan
- Subjects
Engineering ,Waste management ,business.industry ,Pulp (paper) ,General Engineering ,Pilot scale ,engineering.material ,business ,Pulp and paper industry - Abstract
This article introduced the superwater’s action principle for controlling slime pulp and its virtues. And then it studied its bactericidal and ameliorative actions in close system of whitewater. The article also compared superwater with other conventional bactericides. At the use level, concentration, actuation duration and bactericidal ability, superwater system excelled conventional bactericides. Furthermore the superwater can improve a series of problems in close system of whitewater. At last, a pilot scale test about superwater system has been carried out in a packing paper company. The test indicated that the superwater in whitewater can increase yield and save cost.
- Published
- 2011
33. The Effect of Fluorescent Whitening Agent on the Coated Ink-Jet Printing Paper
- Author
-
Ke Fu Chen, Fei Yang, Ren Dang Yang, Xiao Bin Chen, and Wen Hua Gao
- Subjects
Brightness ,Coated paper ,Materials science ,business.industry ,General Engineering ,engineering.material ,Gloss (optics) ,Fluorescence ,Contact angle ,Optics ,Coating ,Chromatic aberration ,engineering ,Composite material ,business - Abstract
Fluorescent whitening agent is relatively small dosage in the coating, but it has great influence on the properties of the coating and ink-jet printing qualities. With the increase of fluorescent whitening agent dosage, the PH of the coating rose but the viscosity was hardly to change. The brightness of coated ink-jet printing paper and color density of the printing image firstly presented the trend of increasing then decreasing. What’s more, when the brightness of the coated paper achieved to the maximum, color density and contact angle properties were the largest. Chromatic aberration property of the image reduced from 1.87 to 1.75, when the addition of fluorescent whitening agent rose from 0.1% to 0.5%. While the dosage was rose to 0.9%, chromatic aberration increased to 2.15. The gloss of coated paper decreased with the dosage of fluorescent whitening agent increasing. In sum, fluorescent whitening agent can enhance the brightness of the coated paper as well as the printing properties. The results show that the best brightness and printing qualities of coated ink-jet printing paper are obtained, when the fluorescent whitening agent is 0.5%( relative to pigment).
- Published
- 2011
34. A Determining Method of Paper Fiber Density and Equivalent Diameter
- Author
-
Xian Cheng Shi, Yu Cheng Feng, Jin Song Zeng, and Ke Fu Chen
- Subjects
Spectrum analyzer ,Materials science ,business.industry ,Filling factor ,Pulp (paper) ,General Engineering ,Physics::Optics ,engineering.material ,Graded-index fiber ,Mode field diameter ,Optics ,Fluid dynamics ,engineering ,Hydraulic diameter ,Fiber density ,Composite material ,business - Abstract
It is very important to measure paper fiber density and equivalent diameter for pulp suspension as solid-liquid two-phase flow in fluid dynamics study. There are some kinds of ways to measure fiber density,but not be suit for pulp fiber density because of their limitations. By using kajaaniFS300 fiber analyzer provided by Mesto ltd company to compare and measure all kinds of fiber length, fiber coarseness, weight average fiber length can more accurately show the actual length of fiber. The results shows that it is apparently more appropriate to calculate fiber density by using fiber coarseness, weight-average fiber length and weight-average fiber width, and fiber equivalent diameter should also be calculated according to the same weight-average fiber length and weight-average fiber width.
- Published
- 2012
35. Paper Machine Boots Type Press Control System Analysis
- Author
-
Zhi Zhang and Dong Hai Su
- Subjects
Engineering ,Paper machine ,business.product_category ,business.industry ,Papermaking ,Control system ,General Engineering ,Process (computing) ,Hydraulic fluid ,Mechanical engineering ,business - Abstract
In the papermaking process, improve the efficiency of dehydration is the most important part of the control system of the paper machine press section, in order to improve the the papermaking efficiency and the quality of paper, the paper analyzed, the shoe working hydraulic oil passage analyzed.
- Published
- 2013
36. Investigation of Pyrocarbon Based Carbon Paper for Proton Exchange Membrane Fuel Cells
- Author
-
Zhe An Su, Mingyu Zhang, Qi Zhong Huang, and Liping Wang
- Subjects
Polarized light microscopy ,business.product_category ,Materials science ,Hydrogen ,Scanning electron microscope ,General Engineering ,chemistry.chemical_element ,Proton exchange membrane fuel cell ,Chemical vapor deposition ,law.invention ,chemistry ,law ,Carbon paper ,Composite material ,Electron microscope ,business ,Layer (electronics) - Abstract
A proprietary in situ chemical vapor deposition (CVD) process was developed to grow a layer of pyrocarbon on carbon paper preform for proton exchange membrane fuel cells (PEMFC). The carbon paper preform is continuously manufactured by dry method. The characteristics of the carbon paper such as surface morphology, polarized light characteristics, and cross-section morphology were characterized using electron microscope, polarized light microscope, respectively. Fuel cell performance of the carbon paper was evaluated using single cell with hydrogen/air at various relative humidity (RH) conditions. The carbon paper with in situ growth of pyrocarbon showed significant improvement in lowering in-plane electrical resistance as well as fuel cell performance at dry condition. The carbon paper as seen under scanning electron microscope showed excellent surface morphology with pyrocarbon connecting carbon fibers tightly by CVD process.
- Published
- 2010
37. Life Cycle Assessment of Forestry (Pulp) and Paper-Making Industry
- Author
-
Yu Wen Li, Mei Ling Zhang, and Shou Yan Deng
- Subjects
Pollution ,Sustainable development ,Engineering ,Environmental evaluation ,business.industry ,media_common.quotation_subject ,Pulp (paper) ,General Engineering ,Forestry ,Energy consumption ,Raw material ,engineering.material ,Cleaner production ,business ,Life-cycle assessment ,media_common - Abstract
The work presented in this paper aims at developing a tool based on the LCA approach which could be used systematically for the environmental evaluation of Forestry(Pulp) and Paper-making industry,seeking a way to reduce energy consumption, product cost and find the opportunity and way to reduce the pollution load. So it should be controled in every link which is possible to generate radiation in the process from gain of raw material in forestation pulp making and paper making to processing of waste products to prevent and reduce pollution and realize sustainable development of the economic, environmental and human society.
- Published
- 2010
38. The Design of Decoupling Control System for Air-Cushioned Head Box of Paper Machine Based on Siemens S7-PLC300
- Author
-
Yuan Yuan Liu, Bin Zhou, and Yan Jing Meng
- Subjects
Engineering ,Paper machine ,business.product_category ,Mathematics model ,Control theory ,business.industry ,Control system ,Siemens ,General Engineering ,Control engineering ,business ,Decoupling (electronics) - Abstract
Small motions will result in heavy influence to the production in high-speed paper machine, therefore, decoupling control is necessary. This passage Puts forward the opposite angles strategies to solve the function of decoupling aiming at solving the difficulty that occurs in practice, like the characteristic of hard-coupling and non-linear. According to the mathematics model of the flow box, decoupling the quantity of the two couplings in the processes. Meanwhile, Introduces the SIEMENS S7-300 PLC and the DCS system that is realized by the it.
- Published
- 2012
39. The Preparation of TiO2 Nanoparticles and Wastewater in Paper Mill Treatment with TiO2 Nanoparticles
- Author
-
Shuai Yuan, Yan Zhu, Hao Meng, and Tao Lu
- Subjects
Materials science ,Waste management ,business.industry ,Economies of agglomeration ,General Engineering ,Paper mill ,law.invention ,Hydrolysis ,Wastewater ,Chemical engineering ,law ,Phase (matter) ,Nano ,Calcination ,Muffle furnace ,business - Abstract
Nano titanium dioxide particles were synthesized by drolysis of TiCl4 through the phase thransfer and pH of the system is adjusted by Na2CO3 At the same time, the particles were characterized by the Transmission Electronic Microscope(TEM) and X-Ray Diffraction(XRD).As the result, it is shown that the TiCl4 solution was transformed from n-octyl alcohol to deionized water phase and reacted with the deionized water at 55°C, the precursors of nano-TiO2—Ti(OH)4 was dried for 6 hours under vacuum at 70°C,then calcined 3 hours in muffle furnace at 400°C.At last, the TiO2 nanoparticles which is uniform distribution, weak agglomeration was synthesized. In addition, wastewater in paper mill treatment with TiO2 nanoparticles was studied by experiment. It is shown that suspended substance and COD in wastewater were brought dwon largely. The mechenism that wastewater was treated is disscussed.
- Published
- 2011
40. Experimental Study on the Bio-Drying Characteristics and its Influencing Factors of Paper Mill Sludge
- Author
-
Jing Yong Liu, Qing Lin Chen, Zuo Yi Yang, Jian Bo Zhou, and Xun An Ning
- Subjects
Chemistry ,Starch ,business.industry ,Atp content ,General Engineering ,Environmental engineering ,Paper mill ,Matrix (chemical analysis) ,chemistry.chemical_compound ,visual_art ,visual_art.visual_art_medium ,Degradation (geology) ,Food science ,Sawdust ,business ,Water content - Abstract
The bio-drying characteristics and its influencing factors of paper mill sludge (PMS) were investigated detailedly, by means of the heat generated by aerobic degradation of the organic substances in the PMS. In the orthogonal experiments, the good results were achieved with the followed optimization technics: starch (25.0g/500.0g), sawdust (40.0g/500.0g), inoculation (15.0mL/500.0g) and KH2PO4(5.0g/500.0g). During bio-drying, the matrix temperature increased to 47.2°C within 12-24h rapidly under the given operation parameters, and the maximum was about 48.0°C. In the whole process the pH changed in the range of 6.11-7.87. The quantity of amylolytic bacteria reduced to the minimum in the first day, and the amylolytic bacteria grew well until the process of bio-drying finished. The ATP content was increased drastically in the first day and peaked in the fifth day, with the maximum ATP content was about 6.4×10-6μmol/g. When bio-drying of PMS was finished, the VS content and moisture content (MC) reduced from 58.4% to 49.5% and 62.2% to 50.3% respectively.
- Published
- 2011
41. A New Kind of United Treatment Technology of 'Three Wastes' from Paper Mill and Flue Gas from Boiler
- Author
-
Jing Hong Yao
- Subjects
Engineering ,Waste treatment ,Flue gas ,Waste management ,Mobile incinerator ,Power station ,business.industry ,General Engineering ,Boiler (power generation) ,Paper mill ,Coal ,business ,Incineration - Abstract
Combining with the production practice in the particular consortium of the paper mill, power plant and calcium carbonate fines factory, a new kind of united treatment technology is designed. The technology is mixing the waste pulp and waste scum with coal to finish the in-furnace desulphurization, spraying waste water to the flue gas to finished flue gas desulphurization and using waste hydrogen of calcium as absorb material. This method can comprehensive use of resource to reach a better economic effective and social benefit. It reduces the processing cost and avoids city environment pollution. The three factories have mutually pleasant business. The technology opens up a new effective approach of desulphurization and can be good example to the same enterprises. An economical benefit is analyzed.
- Published
- 2011
42. Determination of the Whole Stiffness of Paper Plate
- Author
-
De Yi Huang and Sheng Guo
- Subjects
Surface (mathematics) ,Engineering ,business.industry ,General Engineering ,Measure (physics) ,medicine ,Carrying capacity ,Stiffness ,Bending of plates ,Structural engineering ,medicine.symptom ,business - Abstract
A device has been designed to measure the whole stiffness which is behalf of paper plate’s carrying capacity. When the device was working, one end of the paper plate was hold as a hand did, the other end of the paper plate was pushed to 15°angle from the horizontal surface, and the force on the paper plate was recorded. Comparing load-bearing performance, the whole stiffness is more accurate to reveal the differences of the paper plates.
- Published
- 2014
43. The Application of Paper Material in Transition Building after an Earthquake
- Author
-
Li Yong Jiang, Shuai Huang, Ning Bo Liu, and Zhen Li
- Subjects
Engineering ,Architectural engineering ,Disaster area ,Maslow's hierarchy of needs ,Hierarchy theory ,business.industry ,Transition (fiction) ,General Engineering ,business ,Civil engineering - Abstract
Paper material has many excellent characteristics in architectural applications. Our main constructions for disaster rescue are temporary tents, board house and so on for a long time, so it is difficult to meet the psychological demands of the people in disaster area. According to Maslow's hierarchy theory of psychological demands, this paper analyzes people’s demands of physiology, psychology and social aspects in disaster areas, also sums up the exploration of paper material in architectural application, and finally summarizes that paper material is economy, flexible, safety, sustainable and so on.
- Published
- 2014
44. A Study on Recycling of Paper Sludge and Steel Slag Based on Circular Economy
- Author
-
Yun Ming Cao, Jian Liu, Hao Ze Wu, and Chuan Long Yin
- Subjects
Pollution ,Materials science ,Waste management ,business.industry ,Circular economy ,media_common.quotation_subject ,Carbonation ,General Engineering ,Raw material ,Liquid waste ,Steelmaking ,Mortar ,business ,media_common - Abstract
Steel slag, a kind ofindustrial residues, is generated in the process of steel-making. Paper sludgeis the final material which origins from the treatment of liquid waste. Allthese resulted in a serious pollution of environment, how to achieve thecoordinate development among enterprise, environment and society become apressing matter of the moment. Based on this, Circular economy becomenecessary. Based on circular economy, the two kinds of industrial wastes weremixed to manufacture useful materials through carbonation in this research. Therequired raw materials were mixed by mortar mixer at the specified mixingratio. Then the mixture was transferred to a stainless steel mould formanufacturing of rectangular composite specimens. Only in this way, It is toshift from the paper maunfacturing and ironmaking and steelmaking industrywhich is over-consumption of energy and natural resources and very seriousenvironmental pollution to the industry which is less pollution and thedevelopment of multi-part cycle.
- Published
- 2014
45. Research on Random Algorithm of English Test Paper Composition
- Author
-
Wei Wei Qu
- Subjects
Theoretical computer science ,Point (typography) ,Process (engineering) ,Random number generation ,Computer science ,business.industry ,General Engineering ,Field (computer science) ,Test (assessment) ,Randomized algorithm ,Data flow diagram ,Artificial intelligence ,business ,Constraint (mathematics) - Abstract
English, as one of the most important information carriers, has become the most widely used language worldwide, and its importance is increasingly prominent in each field of our society. Examinations are an important means of evaluating the level of English language learning and teaching outcomes. For the problems existed in traditional English exam, this paper research English online examination system intelligent test paper based on random algorithm. First, the design test paper constraints, including the question amount constraint, questions type constraints, knowledge point constraints, difficulty constraints, answer time constraints and so on; Then, using the linear congruence generator study of a random number generation, list recursive formula and describe parameters; Finally, using flow diagram to study random test paper process, for each step describing in detail. Advantages of random algorithm are easy to use, the disadvantage is not retrospective, applies to the number of exam papers and extraction requirements are relatively few cases.
- Published
- 2014
46. Practice and Exploration on the Excellent Curriculum of Processing Technology of Paper Box and Carton
- Author
-
Quan Xiao Liu and Yong Gang Yang
- Subjects
Emergent curriculum ,Class (computer programming) ,Engineering ,business.product_category ,business.industry ,General Engineering ,Mechanical engineering ,Carton ,Graphic communication ,Work (electrical) ,Curriculum mapping ,ComputingMilieux_COMPUTERSANDEDUCATION ,Mathematics education ,business ,Construct (philosophy) ,Curriculum - Abstract
The curriculum construction is a very important work leading to the excellent course. Processing Technology of Paper Box and Carton (including 32 class hours) is a new elective course to the printing engineering in our college. It is very important and necessary to construct the course in time. At first, the current states and difficulties were introduced in the paper, which was that teaching contents, teaching courseware and teacher team should be all improved. Especially, the teaching content proportion on both paper box and carton was set. And then the ideas and ways used for building up the curriculum system are presented as integrating the teaching contents, reforming the teaching mode and strengthening the teaching management. Finally, the significance of carrying out the teaching reform was put forward, and the achievements of course construction should be applied to the usual teaching work. The curriculum Processing Technology of Paper Box and Carton was reckoned as the excellent curriculum of Beijing Institute of Graphic Communication in 2013.
- Published
- 2014
47. A Statistical Analysis of Papers and Author Group in Geomatics and Information Science of Wuhan University
- Author
-
Zi Ping Yan, Qing Qing He, and Hai Jun Wang
- Subjects
Information transmission ,History ,Operations research ,business.industry ,Geomatics ,General Engineering ,Library science ,Statistical analysis ,business ,Information science - Abstract
A statistical analysis is made on papers published in Geomatics and Information Science of Wuhan University from 2001 to 2010 in terms of the number of published papers, the statistics of key words frequency, the number of published papers of authors, the regional distribution of authors, the number of co-authored papers, the added number of paper authors and active author group. The research direction of geomatics and the scale and trend in which geomatics researchers have cooperated in past ten years is represented. It is reflected that the Journal has played an important role in the information transmission, experience exchange, talents training and the improvement and development of China’s geomatics cause.
- Published
- 2014
48. Study on the Return Voltage Function Model of Oil-Paper Insulation Medium Based on Optimization Algorithm
- Author
-
Jing Lan Zeng, Jin Ding Cai, and An Na Li
- Subjects
Engineering ,Optimization algorithm ,business.industry ,General Engineering ,Hardware_PERFORMANCEANDRELIABILITY ,Dielectric response ,law.invention ,Control theory ,law ,Function model ,Hardware_INTEGRATEDCIRCUITS ,Electronic engineering ,Equivalent circuit ,Exponential decay ,Transformer ,business ,Voltage - Abstract
Based on the study of dielectric response theory and equivalent circuit of oil-paper insulation medium, this paper deduces the exponential decay type return voltage function model.It also proposes that rhe function can be resolved with the application of optimization algorithm. Finally, the paper takes a return voltage curve which is tested by the oil-immersed transformer for example.Fitting results verify the accuracy of the calculation. Further more,it also explains that return voltage function model is reliable and practical. Therefore,the model plays a crucial role in the follow-up study of topological structure of equivalent circuit of oil-paper insulation.
- Published
- 2014
49. The Application of Paper Materials in Children Furniture
- Author
-
Wan Dong Bai, Jia Xu, and Jun Zi Zhang
- Subjects
Engineering ,Software portability ,InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI) ,Process (engineering) ,business.industry ,General Engineering ,Forensic engineering ,business ,Texture (geology) ,Construction engineering - Abstract
Better security and environmental performance are manifested in the use of paper materials on children furniture; Paper materials are of excellent features in portability, convenience, affordability, air permeability and texture;Also introduces the craft process of paper materials in making children furniture, and illustrates the application of paper materials according to the children’s experience.
- Published
- 2014
50. Recognition of Paper Currency Research Based on AGA-BP Neural Network
- Author
-
Qing Hong Wu, Xue Xiao, and Ying Zhang
- Subjects
Probabilistic neural network ,Engineering ,Recurrent neural network ,Artificial neural network ,business.industry ,Generalization ,Time delay neural network ,Genetic algorithm ,General Engineering ,Artificial intelligence ,Implicit parallelism ,business ,Class (biology) - Abstract
The genetic algorithm is a randomized search method for a class of reference biological evolution of the law evolved, with global implicit parallelism inherent and better optimization. This paper presents an adaptive genetic algorithm to optimize the use of BP neural network method, namely the structure of weights and thresholds to optimize BP neural network to achieve the recognition of banknotes oriented. Experimental results show that after using genetic algorithms to optimize BP neural network controller can accurately and quickly achieved recognition effect on banknote recognition accuracy compared to traditional BP neural network has been greatly improved, improved network adaptive capacity and generalization ability.
- Published
- 2014
51. Research on Technology of Automatic Paper Generation Based on Genetic Algortion of Mandarin Test
- Author
-
Chun Hua Liu and Yong He
- Subjects
Meta-optimization ,Computer science ,business.industry ,Population-based incremental learning ,Crossover ,General Engineering ,A* search algorithm ,Genetic operator ,Machine learning ,computer.software_genre ,Mandarin Chinese ,language.human_language ,law.invention ,law ,Genetic algorithm ,language ,Artificial intelligence ,business ,computer - Abstract
The system for automatic analysis of test papers needs a algorithm which is efficient and converges fast, Genetic Algorithm is just fit for it.The paper is mainly discuss the basic concept of Genetic Algorithm,three important Genetic operator, the general step of Genetic Algorithm, and introduction of the system for automatic analysis of test papers.We follow the coding,selecting,crossover and mutation of Genetic Algorithm,discuss the process of automatic analysis of test papers.
- Published
- 2014
52. Intelligent Generating Examination Paper from Item Bank Based on Improved Genetic Algorithm
- Author
-
Jing Shao Zhang, Li Feng, and Qian Wu
- Subjects
Engineering ,Work (electrical) ,business.industry ,Population-based incremental learning ,Genetic algorithm ,General Engineering ,Item bank ,Artificial intelligence ,business ,Disadvantage ,Test (assessment) ,FSA-Red Algorithm - Abstract
In this paper, we analyze the disadvantage of common generating test paper algorithm. An improved genetic algorithm (IGA) is proposed and used in auto-generating examination paper algorithm. We design the mathematical model of auto-generating test paper algorithm and improved the traditional GA fitness evaluation form. A computational study is carried out to verify the algorithm. Simulation results demonstrate that the performance of IGA can work efficiently than traditional ones.
- Published
- 2014
53. Research Based on Stitching Technology of Scrapped Paper
- Author
-
You Fu Wu, Meng Qiu Kong, Jing Wu, and Peng Yang
- Subjects
Image stitching ,Horizontal projection ,Engineering drawing ,Engineering ,Pixel ,Robustness (computer science) ,business.industry ,Research based ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,General Engineering ,Cluster analysis ,business - Abstract
This paper mainly make stitching technology of character in scrapped paper of printed file carry on research, which puts forward a stitching method in the light of character and image with multi-feature information in scrapped paper, mainly considering stitching same line character generally possesses similar horizontal projection region and projection center, it adopts human-computer interaction to semi-automatic stitching. First, we make image of scrapped paper binarization and small area filtering (with the exception of the boundary), after characters clustering, we utilize matching degree of pixels information of the left and right edges to make vertical stitching. This method can better tackle stitching and restoration of scrapped paper characters whose edge with segmented character. The scraped papers provided by the national undergraduate mathematical modeling contest were conducted experiment; the results indicate that this method is effective, with strong real-time property, robustness.
- Published
- 2014
54. An Auto Flip Delivery Mechanism of the Paper Laminating Machine
- Author
-
Ji Fei Cai, Ning Kuan Zhu, and Jian Feng Xin
- Subjects
Mechanism (engineering) ,Engineering ,Engineering drawing ,business.industry ,General Engineering ,business ,Computer hardware - Abstract
In order to solve the problem that the paper will be wrapped and distorted after being laminated by the paper laminating machine, an auto flip delivery mechanism of the paper laminating machine is designed. A set of flip mechanism is installed in the delivery part of the paper laminating machine for placing the small paper stacks right side up or side down, which effectively prevents the laminated paper from being wrapped and distorted. Comparing with manual delivery, it saves labor, reduces the number of employers and also reduces the cost of the enterprises. The effectiveness of the mechanism has been verified in its actual application.
- Published
- 2014
55. The Revision of Paper Surface Efficiency and its Influences on Printing Qualities
- Author
-
Qiao Zhuo Gao and Yong Gang Yang
- Subjects
Engineering ,Engineering drawing ,Inkwell ,business.industry ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,General Engineering ,Color effect ,Color reproduction ,business ,Algorithm ,Gloss (optics) - Abstract
Paper surface efficiency (PSE), a paper property integrating gloss and absorbency, can be used to evaluate color reproduction after the interaction of paper and ink. But it was shown that the color reproduction was still related to paper whiteness in practice. In this paper, an assumed PSE formula which integrates gloss, whiteness and ink absorbency is firstly presented, and according to experimental data, it can be well forecasted that the change of these principal paper properties would affect color reproduction result via the new PSE formula. The linear relationships between new PSE formula and ink color reproduction based the description of photo-density measurement were studied subsequently. The results showed that new PSE formula can be used to predict effectively ink color effect.
- Published
- 2014
56. Key Parameter Function of Wine Cushioning Package of Honeycomb Paper Core
- Author
-
Jian Wu, Shuai Jun Huang, and Yan Ping Du
- Subjects
Engineering ,Engineering drawing ,business.industry ,General Engineering ,Cushioning ,Mechanical engineering ,Honeycomb structure ,Software ,Package design ,Cushion ,business ,MATLAB ,computer ,computer.programming_language - Abstract
This paper presents methods of cushioning package design. The analysis of existing shortcoming is made when the maximum accelerationstatic stress curve (what is called curve) is applied to the cushion package design, at the same time ,the principle and method steps to get curve are briefly introduced when the stressenergy method is used .the function between the key parameters of cushioning package design is acquired by the stressenergy method .By comparing the data produced with matlab software with the real experimental ones in some paper, the possibilities to get curve of casual drop height and cushion thickness by one-time experiment to get curve with stress-energy method is demonstrated. Based on the function of key parameters of cushioning package acquired, the reversed cushioning package design method is carried out.
- Published
- 2013
57. A Research on Genetic Algorithms Based on Test Paper Composition of Item Response Theory
- Author
-
Tao Sun and Yan Hua Chu
- Subjects
Engineering ,business.industry ,Item response theory ,Genetic algorithm ,General Engineering ,Artificial intelligence ,Computerized adaptive testing ,business ,Composition (language) ,Test (assessment) ,Computer technology - Abstract
Along with the computer technology in the examination of the application, the examination has become a hot topic. However, test paper is an important part of the adaptive test. According to the test generation of the objectives and requirements, this paper introduces a method based on item response theory ( IRT ) thought of genetic algorithm in the test application, thereby effectively solving the problem of intelligent test paper.
- Published
- 2013
58. The Research of Edge Detection in RMB Paper Currency Value Identification
- Author
-
Xiang Hua Hou and Hong Hai Liu
- Subjects
Computer science ,business.industry ,General Engineering ,computer.software_genre ,Edge detection ,Identification (information) ,Currency ,Face (geometry) ,Value (economics) ,Renminbi ,Enhanced Data Rates for GSM Evolution ,Data mining ,Artificial intelligence ,business ,computer - Abstract
When using international popular algorithms deal with RMB paper currency, there exist three main aspects. First, the size of RMB paper currency is different with other countries. Second, the color of RMB paper currency is different from other countries, and the different face values have different major color, pattern and texture. Third, the location of face value in paper currency of our country is different from other countries. For RMB paper currency image, using edge detection is to separate the paper currency from the image according to boundary. In other words, the background is removed and only paper currency is left. This paper firstly introduces the principles of removing background by gradient operator, LOG algorithm and Canny algorithm. Then it analyzes the edge image results obtained by these three kind algorithms. At last, these three algorithms are evaluated. Results show that the Canny algorithm can satisfy the requirement of removing background and can improve a good foundation for the subsequent of paper currency extraction.
- Published
- 2013
59. Heuristic Genetic Test Paper Algorithm for Online Examination System
- Author
-
Ming Cui, Wei Liu, and Feng Yu
- Subjects
Information management ,Heuristic (computer science) ,business.industry ,Computer science ,Heuristic ,General Engineering ,The Internet ,Artificial intelligence ,business ,Algorithm ,Test (assessment) - Abstract
Online examination system is built on internet applications,aimed at achieving information management of examinations. Online examination system in the generation of test papers, the submission and approval can be done automatically on the network. We proposes a new heuristic genetic test paper algorithm, and the proposed algorithm is applied to the online examination system. From the experimental results,the improved algorithm has achieved satisfactory performance.
- Published
- 2013
60. The Correction Algorithm Research of Inclination Paper Currency Image
- Author
-
Hong Hai Liu and Xiang Hua Hou
- Subjects
Correction algorithm ,Image rotation ,Currency ,business.industry ,Inclination angle ,General Engineering ,Computer vision ,Artificial intelligence ,Recognition algorithm ,business ,Mathematics ,Image (mathematics) - Abstract
There exist low recognition speed and non-ideal recognition effect in some recognition algorithms of paper currency value. One of very important reasons is that the shooting angle makes the image inclined. This paper firstly analyses the binarization processing of RMB 100-Yuan image and then the method of acquiring straight lines in image is discussed. Thus, the inclination angle of image is calculated by using the obtained straight lines. Finally, through rotation transformation, the inclination image is corrected. The experimental results show that this algorithm has a good corrected effect to the inclination image of paper currency and improves the image recognition effect.
- Published
- 2013
61. Kinematics Analysis of the Eccentric Swing Paper Transfer Mechanism
- Author
-
Li Ya Su
- Subjects
Engineering ,Angular acceleration ,Lever ,Offset (computer science) ,business.product_category ,business.industry ,Angular displacement ,General Engineering ,Angular velocity ,Kinematics ,Swing ,Control theory ,business ,Cam follower - Abstract
The paper transfer mechanism is an important component of the offset presses, which weightily affects the paper transfer, handover and the print quality of the offset presses. The paper analyzed motor process of the eccentric swing paper transfer mechanism with J2108; introduced the motion law of cam follower lever with the driving paper transfer mechanism by complex vector Analytical method; Draw the angular displacement and time diagram, the angular velocity and time diagram and the Angular acceleration and time diagram with follower lever.
- Published
- 2013
62. The Partition of Regional-Specific Environment Management Area for the China Pulp & Paper Industry Based on Resources and Environment Carrying Capacity
- Author
-
Qing Cui, Xiu Lian Zhu, Wen Xia Wei, and Fan Chen
- Subjects
Engineering ,Operability ,Index (economics) ,business.industry ,General Engineering ,Analytic hierarchy process ,Raw material ,Environmental economics ,Partition (database) ,Civil engineering ,Resource (project management) ,Carrying capacity ,Zoning ,business - Abstract
Considering the operability of the environmental management type zoning in the paper industry, the evaluation index system of resources and environment carrying capacity is divided into two sub-index systems of the raw materials bases and paper industry. The weight of each index is evaluated by the AHP method, the index is calculated by the grey cluster assessment. The environmental management districts in both of the raw material forest base and paper industry were typified by using the GIS analysis method, respectively. Ultimately the national paper industry resources and environment management type partition is integrated from the two kinds of partition by using a two-dimensional matrix method.
- Published
- 2013
63. The Application of Traditional Paper Art Skills in Modern Lighting Design
- Author
-
Nao Ri Bu Otgeng, Xia Guo, and Hong Yan Xue
- Subjects
Engineering ,business.industry ,Aesthetics ,General Engineering ,Mechanical engineering ,Meaning (existential) ,Fantasy ,business ,Variety (cybernetics) - Abstract
Within the inventions of human beings,paper has its unique meaning and influence, this sensitive, slender, fragile, old material, provided a possibility of innovation for artists----traditional paper folding. Many artists take the advantage of its specialty and superiority to design variety distinctive lamps. The essay states the fantasy paper art, and deeply explain how traditional paper art deduces methods and thinking of modern lamps, on the basis of analyzing the specialty and superiority of papers [1].
- Published
- 2013
64. Research on the Influence of Paper Smoothness on the Color Effect
- Author
-
Qing Jun Meng and Zhi Jian Li
- Subjects
Smoothness (probability theory) ,business.industry ,Computer science ,Papermaking ,General Engineering ,Process (computing) ,Color effect ,Color printing ,Gamut ,Computer graphics (images) ,Computer vision ,Artificial intelligence ,business ,Hue - Abstract
Smoothness directly influences the color effect of printed matter, so it is very significant for researching the influence of paper smoothness on color effect of printed matter. This article researchs the relationships between the paper smoothness and the color effect of printed matter through experiments. The results show that, hue error of printed matter decreases with increased smoothness, color gamut of printed matter increases with increased smoothness, the glossiness of printed matter increases with increased smoothness, and color effect of printed matter better with increased smoothness. The results could provide a theoretical reference for papermaking enterprises to optimize the process of papermaking and produce suitable paper for color printing.
- Published
- 2013
65. Complex Paper Disease Detection Based on Probabilistic Hough Transform
- Author
-
Hai Lun Zhang, Dan Dan Dou, and Xing Guang Qi
- Subjects
Probabilistic hough transform ,Engineering ,Disease detection ,business.industry ,General Engineering ,Streak ,Boundary line ,Hough transform ,law.invention ,law ,Robustness (computer science) ,Computer vision ,Artificial intelligence ,business ,Algorithm - Abstract
Although advantages of traditional Hough transform of such Good robustness and anti-interference have been found in the process of detection of complex paper diseases such as Streak, fold, however, quantity calculation has imposed limitation on the application of this method in dealing process demanding high instantaneity. Probabilistic Hough Transform fits in a straight line by approach of Hough transform. The approach of selecting fitting points by random drawing and combination with meter counter and output a boundary line where random drawing points locates on condition that such points satisfy limitation of threshold value which has been pre-setted is able to reduce the calculation and period of algorithm operation therefore fitts detection of complex paper diseases demanding high instantaneity.
- Published
- 2013
66. Research on the Effects of the Basic Properties of Offset Paper and Art Paper on Printing Dot Reproduction
- Author
-
Yong Gang Yang and Fu Ping Liu
- Subjects
Engineering drawing ,Gamut ,Offset (computer science) ,Optics ,business.industry ,General Engineering ,Chromatic scale ,Dot gain ,business ,Gloss (optics) ,Mathematics - Abstract
The properties of offset paper and art paper including smoothness, gloss and absorbability, dot percentage and the tri-stimulus values of every dot areas and solid areas of the printed paper samples were measured. Dot gain curve and chromatic diagram were drawn after dot gain values and chromatic coordinates (x, y) were calculated. The results showed that smaller dot gain value and greater color gamut occur on the art paper due to its higher smoothness, gloss and lower absorbability when the printing conditions were the same, so the printing dot reproduction quality on the surface of art paper is better. However because offset paper has lower smoothness and gloss, higher absorbability compared with art paper, therefore the dot reproduction quality on offset paper is not as good as art paper.
- Published
- 2011
67. Analysis of R&D Capacity and Cooperation Trend of China and US in the Field of Clean Coal Technology Based on Paper and Patent Data
- Author
-
Dong Yan, Rui Tao, and Si Hong Wu
- Subjects
Engineering ,Waste management ,business.industry ,General Engineering ,Environmental economics ,business ,China ,Clean coal technology ,Field (computer science) - Abstract
Based on the database of Thomson Reuters, the bibliometric and patent information of China and US in the field of Clean Coal Technology from 2006 to 2011 are searched. The R&D capacity of China and US in the field of Clean Coal Technology are compared, the advantageous institutes in this field are identified. The cooperation trend between China and US on Clean Coal technology is analyzed. Some suggestions are proposed based on the data analysis.
- Published
- 2014
68. Vehicle Driving Oil-Saving Technologies Discussed in this Paper
- Author
-
Bing Guo Liu
- Subjects
Orders of magnitude (bit rate) ,Engineering ,National economy ,business.industry ,General Engineering ,Oil price ,business ,Vehicle driving ,Automotive engineering ,Industrial organization - Abstract
with the rapid development of national economy in recent years, rapid growth of the road mileage, the rapid growth of usage of the car begin to render phase geometry orders of magnitude, however, as the international oil prices gradually rise, the domestic refined oil price is high, the use of the car costs are rising fast. Therefore, how to better maintenance of vehicles, and change some of the original bad driving technology, can make the car in the most fuel-efficient and has become a very meaningful topic.
- Published
- 2014
69. Information Extraction from Chinese Papers Based on Hidden Markov Model
- Author
-
Yan Zhang and Cheng Ying Chi
- Subjects
Markov chain ,Computer science ,business.industry ,Maximum-entropy Markov model ,Variable-order Markov model ,Speech recognition ,General Engineering ,Forward–backward algorithm ,Markov process ,Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing) ,Pattern recognition ,Markov model ,Viterbi algorithm ,symbols.namesake ,Computer Science::Sound ,symbols ,Markov property ,Forward algorithm ,Hidden semi-Markov model ,Artificial intelligence ,Hidden Markov model ,business - Abstract
Hidden Markov model HMM (1) is one of the important approaches for information extraction. In this paper, a model of the improved first-order hidden Markov HMM (2) is proposed. In the HMM (2), the output probability of the observation is not only dependent on the current state of the model, but also dependent on the previous state of the current state of the model. The algorithm of the ML and the algorithm of the Viterbi are analyzed. At last, experiments show that the HMM (2) is more precise than the HMM (1).
- Published
- 2013
70. Design of Control System in Strapping Machine for Paper Bills
- Author
-
Xiu Hong Ma and Xin Ju Zhang
- Subjects
Engineering ,business.industry ,Reliability (computer networking) ,General Engineering ,Programmable logic controller ,Control engineering ,Noise ,Transformation (function) ,Embedded system ,Control system ,Line (text file) ,business ,Strapping ,Machine control - Abstract
The strapping machine for Paper Bills typically was designed to reduce labor intensity and enhance production automation level. The machines structure and working principle were described. There are three work posts in this equipment, they work continuously. This approach makes it very easy to split up a complex transformation into a series of simple transformations arranged in a loop line. The machine includes currency count/counterfeit distinguishing system, conveying system and strapping system. In the same time, the machine control system that adopts the PLC programmable controller can simplify the control system, and its reliability strengthens further. Practices show that the strapping machine has the advantages of simple structure, high efficiency, low cost and small vibrating noise.
- Published
- 2013
71. An Effective MECE Module as a Recycling Process for PET Diaphragm of Digital Paper
- Author
-
Pai Shan Pa
- Subjects
Materials science ,business.industry ,Direct current ,General Engineering ,Diaphragm (mechanical device) ,Rotational speed ,Edge (geometry) ,Cathode ,law.invention ,Anode ,Machining ,law ,Electrode ,Electronic engineering ,Optoelectronics ,business - Abstract
A newly devised process using micro-electrochemical machining (MECE) is described as a recycling module in the current study. The purpose is the precise removal of In2O3SnO2 thin-film nanostructures from optical PET diaphragm surfaces for digital-paper surface. In the current experiment it was found that a large rotational diameter (Dc) for the cathode with a small gap width between the anode and the PET diaphragm surfaces was found to remove the In2O3SnO2 rapidly. A small edge radius of the cathode, or a short arc length of the anode, reduces the time taken for In2O3SnO2 removal. A high feed rate of the PET and adequate electrical power results in fast machining. Pulsed direct current improves dregs discharge and this is an advantage with a fast feed. A high electrode rotational speed also corresponds to faster removal of the In2O3SnO2 nanostructures. The development of the proposed precision production design is based on both technical and economic considerations.
- Published
- 2013
72. Design and Research on the Cigarette Paper Smoldering Rate of PRS-2 Tester
- Author
-
Wei Dong Huang and Yong Min Yu
- Subjects
Engineering ,business.industry ,Vision sensor ,Real-time computing ,General Engineering ,Computer image ,Line (text file) ,business ,Image resolution ,Simulation - Abstract
The measuring body of PRS-2 cigarette paper smoldering rate tester is industrial vision sensors P4E1.3, it could determine and identify the burning of the cigarette paper by using the advanced computer image processing techniques.The vision sensor can detection to 10,000 times per minute when the image resolution is 1.3 million pixels-accurate, it simultaneously monitors the 5 cigarette paper, and can ensure that the scanning frequency of each cigarette paper is not lower than 100 Hz. In the case of deducting the necessary analysis and calculation time, it can guarantee that the timing accuracy is no less than 0.1s. The instrument is able of detecting the serrated depth of the burned cigarette paper line and excludes the misjudgment which caused by human factors,so it could achieve control, data analysis, save and print independently.
- Published
- 2013
73. Manufacture of Masonry Mortars with Melamine Powder Waste and Melamine Paper from the Manufacture of Agglomerated Particle Boards
- Author
-
J. Gadea, J. Garabito, Verónica Calderón, C. Junco, Ángel Rodríguez, and S. Gutiérrez
- Subjects
Cement ,Absorption of water ,Materials science ,business.industry ,General Engineering ,Masonry ,chemistry.chemical_compound ,Compressive strength ,chemistry ,visual_art ,visual_art.visual_art_medium ,Particle ,Ceramic ,Mortar ,Composite material ,business ,Melamine - Abstract
Our presentation develops the study of cement mortars manufactured with melamine waste, either in the form of powder or cellulose paper, taken from the industrial production of particle boards, characterizing all of their properties and comparing them with traditional cement mortars. The objective is to determine in what way the addition of melamine powder and melamine paper will modify traditional mortar, once these materials have been subjected to a polymerization process under pressure and under increased temperature, in order to assess the possibility of using these new materials for applications in the construction industry. The behaviour of mortar in the fresh state is studied, determining the variations produced with the addition of melamine powder and melamine paper on the workability and the on-site use of these mortars. Likewise, their mechanical properties under flexion, compression, and adherence to a ceramic surface are studied and compared with those obtained from the reference mortar. Water absorption by capillary action and vapour permeability are also studied, in order to understand the interaction of the polymerized melamine in the capillary network of the mortar. Dosages were prepared for a reference mortar and a further two series of mortars with different quantities of melamine powder and melamine paper, together with cement, sand and water. In this first phase, the use of additives in the mixtures was not considered. The process of selecting the materials and the dosage criteria of the mixtures are subsequently described. The results of the study show that the use of powder melamine and paper cellulose melamine can be used to manufacture mortars with properties that are equivalent to traditional mortars, although further studies with greater precision will be needed on the contribution of the melamine polymerization process to the internal structural cohesion of the mortar.
- Published
- 2013
74. Investigation on Reproduction Characteristics of Light Paper
- Author
-
Yu Xiang Xu and Wen Yan Jiang
- Subjects
Engineering ,Offset (computer science) ,business.industry ,media_common.quotation_subject ,Reproduction (economics) ,General Engineering ,Good control ,Color saturation ,Gamut ,Optics ,Electronic engineering ,Contrast (vision) ,Quality (business) ,business ,media_common - Abstract
By experimental and comparison method, printing characteristics of light paper were studied. A test form was designed for monitoring reproduction processes and evaluating reproduction characteristics. Then it was output on film, plates, and paper in turns. Results showed that performance of paper has a direct impact on reproduction quality; prints made by light paper have less color saturation, lower print contrast, much dot loss in light areas and less color gamut than those by offset paper. However, the difference between them was very small. Under good control this environmental friendly paper was absolutely able to the high quantitative offset paper in book printing. Effective measurements of improving printing quality on light paper printing were derived
- Published
- 2013
75. Geotechnical Approach to Use Paper in Soil
- Author
-
Hamid Nikraz and Amin Chegenizadeh
- Subjects
symbols.namesake ,Pavement engineering ,Materials science ,business.industry ,Composite number ,Unconfined compression ,General Engineering ,symbols ,Young's modulus ,Geotechnical engineering ,Subgrade ,business ,Ductility - Abstract
Reinforced soil has been among the most effective soil modification materials. Its use has been expanded rapidly into civil engineering, geotechnical engineering and pavement engineering. Reinforcing subgarde in pavement systems has always been an issue. This study focuses on effect of paper inclusion on the modulus of elasticity of subgrade material. Paper was used for this investigation. Paper contents and aspect ratio have been changed during these tests. The paper percentage varied from 0 % (for unreinforced samples) to 30%. Clay was used as sub grade material. Unconfined compression tests were carried out to investigate behaviour of the composite under different condition. The paper reinforcment length and paper reinforcment content found to play important rule on the modulus of elasticity of paper reinforced samples. Furthermore it was observed that ductility of sample increased by paper inclusion.
- Published
- 2012
76. Study of Culture Paper Making with P-RC APMP by Different Papermaking Process
- Author
-
Tao Lin, Jian Wei Song, Zhi Jie Wang, and Xue Feng Yin
- Subjects
Engineering ,business.industry ,Papermaking ,General Engineering ,Fiber network ,Raw material ,chemistry.chemical_compound ,Calcium carbonate ,chemistry ,Scientific method ,Carbonate ,Fiber ,Particle size ,Composite material ,business - Abstract
Using Poplar P-RC APMP as raw materials for culture paper making, the effect of conventional papermaking process and P-RC APMP fines-calcium carbonate co-flocculation process on the P-RC APMP culture paper properties were studied. The result showed that, comparing to the conventional papermaking process, co-flocculation process can supply paper with better strength properties, bulk and whiteness. When precipitated calcium carbonate (PCC) or ground calcium carbonate (GCC) were added respectively in conventional papermaking process, the PCC supplied handsheets with better bulk and whiteness, while GCC supplied handsheets with better strength properties. In the co-flocculation process, the effects of PCC and GCC were nearly the same in strength properties and bulk of handsheets, but PCC was more beneficial for whiteness. SEM images showed that PCC distributed more evenly in the fiber network, and well-bonded with fiber network. The particle size of GCC is relatively small, mainly filled in the fiber network and wrapped on the fiber.
- Published
- 2012
77. Analysis on Dynamic Characteristics of Paper Feeding Device
- Author
-
Yuan Huang, Run Xie, and Ji Fei Cai
- Subjects
Vibration ,Engineering ,Variable (computer science) ,Quality (physics) ,Control theory ,business.industry ,General Engineering ,Head (vessel) ,Structural engineering ,business ,Stability (probability) ,Finite element method - Abstract
Variable head sizes of paper roll will influence the stability of paper feeding device and hence the printing quality. Therefore, it is necessary to improve the printing quality by improving the stability of paper feeding device based on dynamic analysis on the phenomenon of variable head sizes of paper roll. It is found through dynamic analysis that the effect of variable head sizes on the support force of bearings is nearly five times that of the case when such effect does not exist. Vibration performance analysis of paper feeding device using finite element analysis obtains the natural frequencies of the first 6 orders for paper carriage and their dominant vibrational modes. This provides theoretical basis for the improvement of paper feeding device.
- Published
- 2012
78. Exploration and Consideration on the Curriculum Construction of Processing Technology of Paper Box and Carton
- Author
-
Yong Gang Yang, Qiao Zhuo Gao, and Quan Xiao Liu
- Subjects
Engineering ,Class (computer programming) ,business.product_category ,business.industry ,General Engineering ,Mechanical engineering ,Teaching mode ,Carton ,Engineering management ,Work (electrical) ,ComputingMilieux_COMPUTERSANDEDUCATION ,business ,Set (psychology) ,Construct (philosophy) ,Curriculum - Abstract
The curriculum construction is a very important work leading to the excellent course. Processing Technology of Paper Box and Carton (including 32 class hours) is a new elective course to the printing engineering in our college. It is very important and necessary to construct the course in time. At first, the current states and difficulties were introduced in the paper, which was that teaching contents, teaching courseware and teacher team should be all improved. Especially, the teaching content proportion on both paper box and carton was set. And then the ideas and ways used for building up the curriculum system are presented as integrating the teaching contents, reforming the teaching mode and strengthening the teaching management. Finally, the significance of carrying out the teaching reform was put forward, and the achievements of course construction should be applied to the usual teaching work.
- Published
- 2012
79. Study on Reproduction of Ink Color with Paper Performance Based on Energy Saving and Special Material Properties
- Author
-
Wen Ge Chen
- Subjects
Smoothness (probability theory) ,Inkwell ,Opacity ,business.industry ,Computer science ,General Engineering ,Grayscale ,Sample (graphics) ,Computer graphics (images) ,Computer vision ,Color wheel ,Artificial intelligence ,business ,Material properties ,Energy (signal processing) - Abstract
Printing quality mainly depends on reproduction of the color and level, paper and ink influence the reproduction of color and level. In this paper, it is mainly through measuring the paper smoothness, whiteness, opacity, glossiness etc. parameters, using print press printed sample of different paper, Measuring density of color piece, calculate the grayscale, color deviation and color efficiency, and draw color wheel figure, thus obtaining conclusion that special material paper performance influence color reproduction and energy saving or material saving
- Published
- 2012
80. Paper Moisture Rate Measurement Based on the Spectral Analysis
- Author
-
Dian Hong Yu, Lin Li, Kai Zhao, and Lin Hai Cao
- Subjects
Engineering ,Moisture ,business.industry ,General Engineering ,Electrical engineering ,Measurement problem ,Moisture ratio ,Experimental research ,Spectral line ,Rate measurement ,Functional module ,Electronic engineering ,Spectral analysis ,business - Abstract
In order to solve the online measurement problem of paper moisture rate technical specification, the moisture rate measuring technique based on the infrared spectroscopic analysis is researched in this paper. The basic law on the spectral absorption of medium is expatiated and the problems applying the law to the moisture ratio measurement are also analyzed. The key technology that can realize the ratio on-line measurement by means of two spectral lines (measuring spectral line and the reference line) is explored. The measurement project is designed and the role of the main functional module in the project is discussed. The corresponding experimental research is carried out. The analysis results are given.
- Published
- 2012
81. The Influence of Offset Paper Properties on Printing Effect
- Author
-
Zhi Jian Li, Qing Jun Meng, and Liang Liu
- Subjects
Optics ,Gamut ,Offset (computer science) ,Smoothness (probability theory) ,Materials science ,Inkwell ,business.industry ,General Engineering ,Optical density ,Saturation (chemistry) ,business - Abstract
Offset paper properties have great influence on the quality of print matter. Eleven offset paper samples were printed by IGT printability tester, then the density and L*a*b values of printed samples were measured. The relationship between paper properties and optical density or color gamut of paper printed was studied. The results show that main density increases with the increased ink quantity before the main density reaches saturation, the saturation density becomes greater with increased ink absorbency. When the smoothness is larger, lower ink quantity is needed for reaching saturation density, and larger color gamut is obtained. This study will provide references for the paper making and printing enterprises.
- Published
- 2012
82. Study on Comprehensive Evaluation Model of Art Paper Printability
- Author
-
Qing Jun Meng, Zhi Jian Li, and Bao Hong Yang
- Subjects
Engineering ,Engineering drawing ,Software ,Inkwell ,business.industry ,General Engineering ,Dot gain ,business - Abstract
Paper printability directly affects the printing process and the final quality of printing matter. Therefore, it is significant to establish accurate, scientific, reasonable comprehensive evaluation model of the paper printability. Five art paper samples were researched in this paper. Different paper properties including whiteness, opacity, smoothness, ink absorption, tensile strength and burst strength were tested. The comprehensive evaluation model of art paper printability was obtained by using SPSS software. Then printing dot gain rate, printing density, printing glossiness and overprint rate were measured for verifying predicted results. Results show that the evaluation model can provide a practical and quantitative method for rapid evaluation of comprehensive printability of art paper.
- Published
- 2012
83. Research on the Impact of Surface Characteristic of Paper on Digital Printing Color Reproduction
- Author
-
Xue Lin Huang
- Subjects
Lightness ,business.industry ,Computer science ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,General Engineering ,Color balance ,Color space ,Grayscale ,Color rendering index ,Color model ,Gamut ,Computer graphics (images) ,Digital printing ,Computer vision ,Artificial intelligence ,business ,ComputingMethodologies_COMPUTERGRAPHICS ,Hue - Abstract
The different paper has the different Surface Characteristic, which has the different influences on the printing color Reproduction. Through the paper printability, the color gamut experiments of digital printing, The influence of surface characteristics of paper on digital printing color reproduction was analyzed according to color rendering ability, The results indicated that the printed matter had better color efficiency, greater color gamut and smaller hue error and grayscale which had higher paper smoothness and glossiness, the higher paper whiteness is in favor of color reproduction. The surface characteristic of paper limits color reproduction. To ensure printing quality, should choose better color efficiency of paper.
- Published
- 2012
84. Preparation of Green Packaging Materials of Synthetic Paper and its Performance Research
- Author
-
En Qiang Yin, Hong Guang Sun, and Kai Li
- Subjects
Paperboard ,Materials science ,business.industry ,visual_art ,General Engineering ,visual_art.visual_art_medium ,Honeycomb ,Raw material ,Composite material ,Process engineering ,business - Abstract
It analysises the performance advantages of the green packaging materials made by synthetic paper and the feasibility that it replaces the materials made by paper and plastic, it elaborate the raw material ratio of synthetic paper material and production process, and a study on the mechanical properties of synthetic paper honeycomb paperboard was been done, it provides a theoretical basis to drive the developmental application of green packaging materials made by synthesis paper.
- Published
- 2012
85. Using Paper as Reinforcement in Silty Sand
- Author
-
Amin Chegenizadeh and Hamid Nikraz
- Subjects
Materials science ,business.industry ,Composite number ,Unconfined compression ,General Engineering ,Young's modulus ,Subgrade ,symbols.namesake ,Pavement engineering ,symbols ,Geotechnical engineering ,Reinforcement ,business ,Ductility - Abstract
Reinforced soil has been among the most effective soil modification materials. Its use has been expanded rapidly into civil engineering, geotechnical engineering and pavement engineering. Reinforcing subgarde in pavement systems has always been an issue. This study focuses on effect of paper inclusion on the modulus of elasticity of subgrade material. Paper was used for this investigation. Paper contents and aspect ratio have been changed during these tests. The paper percentage varied from 0 % (for unreinforced samples) to 20%. Silty sand was used as sub grade material. Unconfined compression tests were carried out to investigate behaviour of the composite under different condition. The paper reinforcment length and paper reinforcment content found to play important rule on the modulus of elasticity of paper reinforced samples. Furthermore it was observed that ductility of sample increased by paper inclusion.
- Published
- 2012
86. Study on E-Paper Controller Integrated with DRM
- Author
-
Jie Ma, Ke Zhu, Jin Zhang, and Qing Cheng Li
- Subjects
Engineering ,Digital rights management ,business.industry ,Embedded system ,Controller (computing) ,General Engineering ,Process (computing) ,Slow speed ,business ,Encryption ,Pipeline (software) - Abstract
Security vulnerabilities and the slow speed of traditional Digital Rights Management (DRM) in E-Paper device are the major restrictions of E-Paper industry. This paper introduces a new type of E-Paper controller which is integrated with DRM. DRM is realized in hardware. Data stored in main memory and controller memory or transferred from CPU to controller are encrypted. So that so they are more secure. Display process and decryption process are combined into one pipeline and can run simultaneously. Thus higher speed and less security vulnerabilities are given to controller.
- Published
- 2012
87. Design of Conjugate-Cams for High-Speed Paper-Separation Mechanism
- Author
-
Teng Fei Xiong and Chun Zhang
- Subjects
Mechanism (engineering) ,Engineering ,Suction ,Basis (linear algebra) ,business.industry ,Contour line ,Separation (aeronautics) ,Nozzle ,General Engineering ,Mechanical engineering ,business ,Simulation ,Conjugate - Abstract
A kind of paper-separation mechanism of packing machine for medicine was introduced in this paper. A new contour line of cam is designed on the basis of the analysis of suction nozzle. The design of the profile of conjugate-cams provides theory evidence for the design of high-speed paper-separation
- Published
- 2012
88. Research and Analysis of Offset Printing Press Paper-Feeding Mechanism
- Author
-
Qing Lin Miao, Jun Hong Wei, Xin Ning, Cai Xia Liu, and Bin Feng Yang
- Subjects
Mechanism (engineering) ,Engineering ,business.industry ,visual_art ,General Engineering ,visual_art.visual_art_medium ,Offset printing ,Mechanical engineering ,Swing ,business ,Quintic function - Abstract
According to the reverse design for the motion law of the follower in the swing upward conjugated cam paper-feeding mechanism, the technological requirements of positive design for paper-feeding mechanism are obtained. The quintic polynomial is presented to simulate the motion law of the paper-feeding tooth, and the mathematic model of the profile for conjugated cam is established. The profile of conjugated cam based on an actual sample is calculated, and the feasibility of this method is validated. It has some reference to design similar products.
- Published
- 2012
89. The Influences of Strain Rate on the Mechanical Behavior of Paper Honeycomb
- Author
-
Dongmei Wang
- Subjects
Materials science ,business.industry ,General Engineering ,Honeycomb (geometry) ,Structural engineering ,Composite material ,Strain rate ,business ,Characterization (materials science) - Abstract
The paper honeycomb is a strain-rate-sensitive material. It is significant to predict the mechanical properties of paper hoenycomb at different strain rate for optimizing packaging design. According to the Cowper-Symonds equation, the influence of the strain rate on the paper honeycomb was studied, and the characterization parameters were found by parameter fitting. It provides a reference for optimizing design of paper honeycomb.
- Published
- 2012
90. Research on Effect of Paper Containing OBA on Color Reproduction
- Author
-
Wei Guo Bai, Yi Jing, and Xiao Si Ma
- Subjects
business.industry ,Papermaking ,General Engineering ,Color reproduction ,Iso standards ,Spectral data ,Process engineering ,business ,Mathematics - Abstract
Adding Optical Brightening Agent (OBA) during papermaking has been widely used in modern papermaking industry in order to improve paper whiteness. Because of ISO standard data is based on the paper without OBA, it makes a great diversity of result in color reproduction, and causes the printing production not to meet international standards. This research contrasted ISO whiteness and chroma value of paper with different amount of OBA, analyzed spectral data and tone in color reproduction of paper with different amount of OBA, then got the law of the effect of the ratio of OBA on ISO whiteness and chroma value, and the effect on color reproduction tone level in printing process. It can provide the reference for adding OBA during papermaking.
- Published
- 2012
91. The Application Study of Speciality Paper in Architectural and Interior Designs
- Author
-
Wei Ping Hu, Wei Jia Ouyang, and Xiao Ping Yang
- Subjects
Engineering ,Architectural engineering ,business.industry ,Living environment ,Architectural design ,General Engineering ,Sustainable design ,business ,Interior architecture ,Interior design - Abstract
Certain development has been achieved in the application of speciality paper as materials in architectural and interior designs, but it is rare so far to use it as main design materials. This papers discusses the application of speciality paper in architectural and interior designs, and as important materials, speciality paper is to become a trend in the design fields in the future, which is significant in aspects of improving people’s living environment and environmental protection.
- Published
- 2012
92. The Influence of Paper Brightness on Color Reproduction of Printed Matter
- Author
-
Zhen Liu, Jian Gan Hu, and Li Li Wang
- Subjects
Lightness ,Brightness ,Color difference ,business.industry ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,General Engineering ,Color balance ,Color reproduction ,Substrate (printing) ,Standard test ,Computer vision ,Artificial intelligence ,business ,Mathematics - Abstract
Paper, as an important substrate of printed matter, the performance will impact on the color reproduction. Brightness, as a key index of paper performance, affects the apparent color of paper directly. It was investigated that the printed samples with different brightness have been evaluated the influence of paper brightness on color reproduction by the methods of subjective and objective color difference evaluation. Three kinds of paper with different brightness have been selected as substrate of printed samples. The standard test color blocks have been printed to do corresponding objective color difference evaluation to different paper by CIEDE2000 color-difference formulae methods. Meanwhile, the standard test images with difference contents have been printed on three kinds of paper, which was subjected to subjective color difference evaluation for visual evaluation of standard test images in standard observe conditions. The results of subjective and objective color difference evaluation have been combined to analyze the effect of paper brightness to color reproduction, and different visual influence to images of difference content, and could provide certain reference for selecting the brightness performance of paper in color reproduction.
- Published
- 2012
93. A 'Paper-Press' Finish to Wool Fabric Using the Pressure Decatiser
- Author
-
Jing Xin Cao, Wei Guo Chen, Pei De Qian, Nathan Ly, and Li Yong Yang
- Subjects
Engineering ,Permeability (earth sciences) ,Smoothness ,business.industry ,Wool ,General Engineering ,Process (computing) ,Mechanical engineering ,Composite material ,business - Abstract
A process has been developed to impart permanent paper press finish to wool fabric using the pressure decatiser. This involves developing a new wrapper fabric with appropriate smoothness, strength and steam permeability. The processing time is similar to that normally used in the pressure decatiser, thus in comparison with the conventional Paper Press finish, the processing and labour costs are significantly reduced.
- Published
- 2012
94. Research on the Influence of Surface Sizing on Handmade Xuan Paper’s Modification
- Author
-
Wei Guo Bai and Li Zhen Wang
- Subjects
Engineering ,Engineering drawing ,Digital copy ,business.industry ,Process (engineering) ,media_common.quotation_subject ,General Engineering ,Quality (business) ,Chinese painting ,business ,Sizing ,Field (computer science) ,media_common - Abstract
With the development of digital reproduce technology for traditional Chinese painting, the current demand for high quality “digital xuan paper” and the requirements for its quality is increasing. Handmade xuan paper as the most basic and important material in traditional Chinese painting works, its unique brush pattern and click texture is not available in the “digital xuan paper” dedicated to the digital copy. Therefore, in the reproduction process for traditional Chinese painting, in addition to the rigorous reproduce process, the most important condition to obtain high-fidelity replication products is choosing a type of paper that meet the characteristics of traditional Chinese painting. Based on the digital inkjet technology in this paper, handmade xuan paper chose as the object was modified to obtain the technical requirements of digital reproduce by surface sizing process. Through the study process of different composition sizing agent and different sizing technology, find not only the Influence law of sizing technology and formula on tone level, clarity and color aspects of handmade xuan paper, but also the sizing technology and formula required for modifying handmade xuan paper to comply with part of Index in digital inkjet reproduce process. Through this thesis can provide a reference for handmade xuan paper in the field of digital reproduce technology.
- Published
- 2012
95. Parameters Optimization and Theoretical Analysis on Duckbill-Type Device for Sugar Beet Paper Pot Seedling Transplanting
- Author
-
Ji Yang and Bing Fu Lu
- Subjects
Engineering ,biology ,Seedling ,business.industry ,Trochoid ,General Engineering ,Sowing ,Sugar beet ,Transplanting ,Agricultural engineering ,biology.organism_classification ,business - Abstract
The transplanting device is the key component of a sugar beet paper pot seedling transplanting machine. The parallel four-bar framework is composed of active and passive disc, connecting rod and the duckbill-type linkage, which could ensure duckbill-type device always moving perpendicular to the ground, and its trajectory is trochoid. When the device rotated to near the lowest position, the duckbill’s absolute speed is close to zero, at this time the paper pot seedlings were given out to drop into the trench smoothly through opening the beak, while the role of duckbill transfered from loading to helping the paper pot seedlings to avoid dumping, and the planting process is finished through earth up and suppression. The parameters of a duckbill-type transplanting device are obtained through optimization and simulation, which could meet the requirements of duckbill-type device for transplanting paper pot seedling of sugar beet.
- Published
- 2011
96. The Application and Innovation of the Paper Material in Terms of Decoration Design
- Author
-
Wei Ping Hu and Tian Tian Yu
- Subjects
Engineering ,Architectural engineering ,Adornment ,business.industry ,General Engineering ,Wallpaper ,Technology development ,business ,Interior design - Abstract
The paper material is a kind of green eco-friendly material, economic, practical and colorful, having various species. With the development of modern technology development of making paper, traditional paper material has different characteristics. This article aims to research the paper material and apply the environmental-friendly material to the adornment design. It can be applied and innovated not only in interior decoration wallpaper, but also in smallpox decoration and furniture material.
- Published
- 2011
97. GC-MS Studies on the Contaminants in Paper-Plastic Food Packaging Materials
- Author
-
Chun Yu Yang, Alun, Zhi Zhen Zhao, Zhuang Liu, and Chun Li Yang
- Subjects
Materials science ,Waste management ,business.industry ,Dibutyl phthalate ,General Engineering ,Plasticizer ,Phthalate ,Contamination ,Food safety ,Rotary evaporator ,Food packaging ,chemistry.chemical_compound ,chemistry ,Gas chromatography–mass spectrometry ,business - Abstract
The residual contaminants in paper-plastic food packaging materials can migrate into both surface and inside of food, and consequently harm consumer’s health. Due to this fact, the safety of food packaging materials has attracted concerns from all over world. In this study, the residual contaminants were extracted by ethanol from paper-plastic food packaging materials under ultrasonic condition and different temperatures firstly, then the extractives were concentrated by rotary evaporator, and finally the concentrated contaminants were characterized by means of Gas Chromatography-Mass Spectrometry (GC-MS) detection. The results showed that the following contaminants are detected in the paper-plastic food packaging materials: plasticizer including dibutyl phthalate (DBP) and di-2-ethylhexyl phthalate (DEHP); antioxidants including 2,6-Di-tert-butyl-p-benzoquinone and 2,6-Di-tert-butyl-4-methylphenol (BHT), and solvents in printing ink production including n-Hexadecane and n-Heptadecane. Upon the test results, the conclusion is that more residual contaminants can be detected under high temperatures. This study is helpful for quality control of paper-plastic food packaging materials and has built basic foundation for future migration research.
- Published
- 2011
98. Paper Currency Recognition System Using Characteristics Extraction and Negatively Correlated NN Ensemble
- Author
-
Minal Gour, M.M. Sharma, Kunal Gajbhiye, and Bhagyashree Kumbhare
- Subjects
Engineering ,Markov chain ,Artificial neural network ,business.industry ,Stochastic process ,General Engineering ,Machine learning ,computer.software_genre ,Automation ,Categorization ,Currency ,Ticket ,Artificial intelligence ,business ,computer ,Image histogram - Abstract
An efficient currency recognition system is vital for the automation in many sectors such as vending machine, rail way ticket counter, banking system, shopping mall, currency exchange service etc. The paper currency recognition is significant for a number of reasons. a) They become old early than coins; b) The possibility of joining broken currency is greater than that of coin currency; c) Coin currency is restricted to smaller range. This paper discusses a technique for paper currency recognition. Three characteristics of paper currencies are considered here including size, color and texture. By using image histogram, plenitude of different colors in a paper currency is calculated and compared with the one in the reference paper currency. The Markov chain concept has been considered to model texture of the paper currencies as a random process. The method discussed in this paper can be used for recognizing paper currencies from different countries. This paper also represents a currency recognition system using ensemble neural network (ENN). The individual neural networks in an ENN are skilled via negative correlation learning. The purpose of using negative correlation learning is to skill the individuals in an ensemble on different parts or portion of input patterns. The obtainable currencies in the market consist of new, old and noisy ones. It is sometime difficult for a system to identify these currencies; therefore a system that uses ENN to identify them is discussed. Ensemble network is much helpful for the categorization of different types of currency. It minimizes the chances of misclassification than a single network and ensemble network with independent training.
- Published
- 2011
99. User-Oriented Parametric Product Design and Study on Paper Props
- Author
-
Wen Feng Li, Yi Ding, and Guo Zhi Li
- Subjects
Parametric design ,Focus (computing) ,Engineering drawing ,Engineering ,Software ,Product design ,business.industry ,General Engineering ,Systems design ,User oriented ,business ,Parametric statistics - Abstract
Along with the low carbon environmental protection concepts’ widely spread, the market of derivative paper, such as corrugated props, is gradually causing the focus of the society. The method of system design and advanced tools mean that the use of paper props can be promoted. Combining the design experience of related fields, this paper focuses on standardized method in designing paper props and studying of parametric design based on the software of Box-Vellum.
- Published
- 2011
100. Modeling for Ink Permeability and Calculating the Penetration Depth inside Paper
- Author
-
Yong Gang Yang
- Subjects
Brightness ,Permeability (earth sciences) ,Materials science ,Optics ,Inkwell ,business.industry ,General Engineering ,Mechanics ,Penetration (firestop) ,Penetration depth ,business - Abstract
To study deeply ink penetration condition inside the paper, an ink permeability model on the basis of Kubelka-Munk theory is built up in the paper, and infer out the formula of ink penetration depth, consisting of paper thickness and various brightness. And then the test value and calculation value of ink penetration depth are compared. The study results show that the two values are almost the same, so the state of ink penetration depth can be effectively estimated just by paper brightness.
- Published
- 2011
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