12,788,560 results
Search Results
52. Overview of Quality Control in the Paper Industry
- Author
-
Mustafa Çiçekler and Ahmet Tutuş
- Abstract
The purpose of this study is to provide an overview of quality control in the paper industry.Wood preparation, pulping, bleaching, and papermaking are all steps in the papermaking process, and eachone presents its own set of quality control challenges. The study looks at the various methods that are usedin the industry to monitor and control the quality of finished paper products. It includes laboratory testing,statistical process control, and online monitoring systems, as well as traditional and modern quality controltechniques. The study also emphasizes the significance of quality control in the paper industry, which canhave a significant impact on product performance, customer satisfaction, and profitability. Finally, the studyconcludes with a discussion of benefits in the paper industry's quality control.
- Published
- 2023
- Full Text
- View/download PDF
53. Evaluation of Ti/Pt Anode Efficiency and Energy Consumption in Turbidity and Suspended Solids Removal from Paper Industry Wastewater: The Effect of pH and Support Electrolyte Type
- Author
-
Cansu Elgün and Baybars Ali Fil
- Abstract
In the research, different experimental setups were used to examine the treatment of wastewater from the paper industry using the electrooxidation method, one of the electrochemical treatment methods in the batch system. In the 2000 mL volume jacketed glass reactor utilized for the treatment of wastewater from the paper industry, 4 anode and 4 cathode sieve type plates of 7 cm x 10 cm dimensions were positioned at 0.5 cm intervals, and 1200 mL wastewater was used in the tests. Coated sieve type Ti/Pt electrodes were employed as the anode in the electrooxidation studies, and uncoated sieve type Ti electrodes were used as the cathode. It was determined that the active anodic wet surface area was 1078 cm2 . The removal rates of pollutant parameters such as turbidity and SS (Suspended Solids) in the experiments; the effects of wastewater initial pH value and supporting electrolyte type parameters were investigated. According to the results, the most effective pH value for Ti/Pt anode type at 400 rpm mixing speed was determined to be waste water natural pH (7.5), and 0.50 M NaCl was the most successful supporting electrolyte type. 96.92% Suspended Solids removal efficiency and 95.38% turbidity removal efficiency for Ti/Pt anode were achieved under ideal conditions. In addition, 312.05 kW-hour/kg COD is determined as the energy consumption value.
- Published
- 2023
- Full Text
- View/download PDF
54. Overcoming Barriers to Paper Recycling: A Review of Challenges and Solutions
- Author
-
Mustafa Çiçekler and Ahmet Tutuş
- Abstract
This study addresses the barriers that hinder paper recycling and explores potential solutions to overcome these challenges. The barriers discussed include a lack of recycling infrastructure, inadequate education and outreach, cultural attitudes towards waste, and a lack of economic incentives. To address these barriers, governments and organizations can implement solutions such as expanding recycling infrastructure, improving education and outreach, addressing cultural attitudes through targeted messaging, and providing economic incentives. Successful implementations of these solutions in other locations or industries are also highlighted. The study emphasizes the importance of addressing these barriers to increase paper recycling rates and reduce the environmental and economic costs of low recycling rates.
- Published
- 2023
- Full Text
- View/download PDF
55. Technological aspects of dental education: will we still be reading a paper journal in 50 years?
- Author
-
Damien A Walmsley and Marco Antonio Dias da Silva
- Subjects
General Dentistry - Abstract
Change has become the norm and with the digital revolution we are seeing the demise of the printed word. Dentistry is a pictorial subject, but will pictures in a textbook or journal be surpassed by accessing digital ones on a screen? This article reviews the rapidly changing access and reading of dental publications. An argument is that the ease of access to electronic material, such as video and podcasts, may make traditional paper-based publications obsolete. Already dentistry is seeing such changes take place. With such revolutions come challenges. Misinformation is much easier to generate, and the evidence base may be diluted. Furthermore artificial intelligence is now able to produce text and papers that will make it more difficult to critically review the dental content on offer. The future will bring many challenges and this article provides an opinion on what dentistry might expect. CPD/Clinical Relevance: There are challenges posed by the increasing use of digital resources for information and how this might impact dental knowledge.
- Published
- 2023
- Full Text
- View/download PDF
56. Advantages of lean duplex stainless steels in the pulp and paper industry
- Author
-
MIKKO PALOSAARI
- Subjects
Mechanical Engineering ,General Chemical Engineering ,Media Technology ,General Materials Science ,General Chemistry - Abstract
The performance of lean duplex stainless steels has been utilized by the pulp and paper industry since their introduction to the market almost 20 years ago. Experience has shown that this group of stainless steels has exceptional performance in, for example, alkaline environments towards typical deterioration mechanisms, i.e., uniform corrosion and stress corrosion cracking. The chemistry of the “lean” duplex steels is designed so that the content of volatile and expensive elements like nickel and molybdenum can be reduced to an absolute minimum without sacrificing the technical performance. This reduces the raw material cost and most importantly provides predictability of the steel price, which is often challenging with conventional austenitic and duplex stainless steels.Thanks to a dual phase microstructure and high nitrogen content, lean duplex steels have at least two times higher strength compared to standard austenitic stainless steels. This is often a preferred feature in pulp and paper construction, as it enables lighter structures and less material to be utilized. Today, lean duplex steels are widely available in various dimensions, from thin cold rolled sheets up to thick hot rolled plates. Lean duplex steels are also fully recyclable after the decommissioning stage of the equipment, thereby contributing to the circular economy.
- Published
- 2023
- Full Text
- View/download PDF
57. Top 100 Most-Cited Papers in Herpes Zoster from 2000 to 2022: A Bibliometric Study
- Author
-
Ning Gao, Meng Li, Weiming Wang, Lei Wang, Zhen Liu, and Yufeng Guo
- Subjects
Anesthesiology and Pain Medicine ,Journal of Pain Research - Abstract
Ning Gao,1,* Meng Li,2,* Weiming Wang,1 Lei Wang,3 Zhen Liu,4 Yufeng Guo1 1Department of Acupuncture and Moxibustion, Guangâanmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, Peopleâs Republic of China; 2Department of Gastroenterology, Guangâanmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, Peopleâs Republic of China; 3Department of Dermatology, China-Japan Friendship Hospital, Beijing, 100020, Peopleâs Republic of China; 4Department of Gastroenterology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, Peopleâs Republic of China*These authors contributed equally to this workCorrespondence: Zhen Liu, Department of Gastroenterology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, No. 1 Xiyuan Playground, Haidian District, Beijing, Peopleâs Republic of China, Email doctorliuzhen@126.com Yufeng Guo, Department of Acupuncture and Moxibustion, Guangâ an Men Hospital, China Academy of Chinese Medical Sciences, No. 5 Beixiange St., Xicheng District, Beijing, Peopleâs Republic of China, Email gamgyf@139.comBackground: In recent years, the incidence of herpes zoster has risen steeply, the exact pathogenesis of the acute pain and the transformation into postherpetic neuralgia are still obscure, and the absence of effective management remains a major therapeutic challenge. The purpose of this study was to perform a qualitative and quantitative bibliometric analysis of the 100 most cited papers on herpes zoster.Materials and methods: Related literature were retrieved from the Web of Science Core Collection. Excel and VOSviewer software were applied to quantitatively analyze, and construct the bibliometric network charts.Results: The Top 100 most-cited papers published between 2000 and 2018 showed a fluctuating downward trend. The most studies were published in the year of 2000 (n = 12). The article entitled âA vaccine to prevent herpes zoster and postherpetic neuralgia in older adultsâ from Oxman MN, was the most-cited publication. The United States was the most contributing country, followed by the United Kingdom, and Italy. Finland occupied the highest citations per publication (CPP). The University of Colorado topped the list of institutions with the most publications with 18 articles and also had the most citations (average citations: 281.78 per article). Myron J Levin from the University of Colorado School of Medicine is the most published and most cited researcher overall, whereas Duke Universityâs John W Gnann tops the list in terms of average CPP.Conclusion: In terms of the quantity of T100 articles, researchers, and organizations, the US is the predominant country. The most T100 papers were published in the special journal Clinical Infectious Diseases. The most academic focus remain the remedies for postherpetic neuralgia and vaccine development for individualized groups.Keywords: herpes zoster, bibliometric study, top-cited, citation, VOSviewer
- Published
- 2023
- Full Text
- View/download PDF
58. Design and Development of Paper Recycling Machine
- Author
-
Dr. V. Suburam, S Piradep, B Praveen Kumar, M Rajaganapathi, and A Sakthivel
- Subjects
General Medicine - Abstract
In any big institution,especially educational institutions like schoolsor colleges, generation of large quantity ofwaste papers is quite apparent. And effective use of recycled paper is also possible (craft papers, registers etc). So, instead of disposing off the waste papers into trash, recycling themmakes sense. This not only helps the institute in cost saving but will also ensure its contribution towards the protection of the environment. Designing automatically operated small-scaled paper recycling plant, which can be used in schools and colleges, ensures that a cheap and non-complex methodof production of paper product is guaranteed.Accordingly design of the machine unit has been prepared with all necessary component specifications.
- Published
- 2023
- Full Text
- View/download PDF
59. A Bibliometric Analysis for the All the Published Papers During 2015-2022 in the Journal of Appropriate Technology Based on the Analysis for the Authors
- Author
-
Seongpil Jeong
- Subjects
General Medicine - Abstract
The journal of appropriate technology has been published since the 2015. The major research topics for the journal of appropriate technology have been environment, mechanics, materials, chemical engineering, managing, chemistry, and medicine, etc. In this study, all the published papers of the journal of appropriate technology were analyzed based on the number of published papers and authors. The author’s affiliation was analyzed as university, research institute, and industry, etc. annually. The number of published papers according to the author also analyzed. Based on the bibliometric analysis, it is worth to mention that the trends of publications of the journal of appropriate technology could be identified.
- Published
- 2023
- Full Text
- View/download PDF
60. Isolation and production of polyhydroxybutyrate (PHB) from Bacillus pumilus NMG5 strain for bioplastic production and treatment of wastewater from paper factories
- Author
-
Ho Ky Quang Minh, Ngo Duy Thai, Tran Vu Anh Khoa, Nguyen Thi Ngoc Thao, and Jirapast Sichaem
- Subjects
General Veterinary ,General Agricultural and Biological Sciences ,General Biochemistry, Genetics and Molecular Biology - Abstract
Polyhydroxybutyrate (PHB) has the potential to replace traditional plastics and limit environmental pollution caused by plastic waste. This study combined wastewater treatment with PHB production to reduce costs. Bacteria capable of synthesizing PHB were isolated from paper mill wastewater and identified using Matrix Assisted Laser Desorption/Ionization–Time of Flight (MALDI-TOF) mass spectrometry and 16S rRNA gene analysis. Bacillus pumilus NMG5 strain was found to have a good yield in modified Nutrient Broth culture, reaching 42.28% of dry biomass. The PHB product was analyzed using FTIR spectroscopy and 1H NMR spectroscopy. The bacterial strain was also tested for its ability to treat paper mill wastewater, and it showed impressive results in terms of biochemical oxygen demand (COD), total nitrogen, and total phosphorus, with efficiencies of 95.93%, 79.36%, and 83.55%, respectively. The study found that wastewater treatment combined with PHB production was a promising solution to reduce costs and limit environmental pollution. The bacterial strain B. pumilus NMG5 had a high yield of PHB, and the PHB product was of high quality, as confirmed by FTIR and 1H NMR spectroscopy. Furthermore, the bacterial strain showed impressive results in treating paper mill wastewater with high COD, total nitrogen, and total phosphorus efficiencies. These results suggest that this harmless bacterium could be used in paper mill wastewater treatment systems to produce PHB, providing a sustainable and environmentally friendly solution.
- Published
- 2023
- Full Text
- View/download PDF
61. PAMAM-Functionalized Paper as a New Substrate for the Paper Spray Mass Spectrometry Measurement of Proteins
- Author
-
Igor Pereira, Joseph Monaghan, Lucas R. Abruzzi, and Chris G. Gill
- Subjects
Analytical Chemistry - Published
- 2023
- Full Text
- View/download PDF
62. FIXATION OF DYE-TYPE RED AND BLUE INK HANDWRITING ON AGED PAPER
- Author
-
LINHAN MI, WEI TAN, TING WU, XIAOLAN CAI, CHENQIAN PAN, and YANXIONG FANG
- Subjects
General Materials Science ,Forestry - Abstract
In this article, red and blue ink handwriting on aged paper was fixed by fixative to prevent handwriting from fading or diffusion during aqueous deacidification. Firstly, four fixatives were selected: polydimethyl ammonium chloride (PDDA), the quaternary ammonium salt of chitosan (HACC), cationic guar gum (CGG), and benzyl triethyl ammonium chloride (TEBAC) alcohol solution, according to their fixation effects on filter paper dyes, and derive the optimal composition ratio of the above four fixatives. Experimentally derived that PDDA has an excellent fixation effect on red ink handwriting, and HACC has an excellent fixation effect on blue ink handwriting. In addition, HACC also has a positive impact on the conservation of handwriting in real archives. The mechanical properties of aged paper were improved, and the paper fibers had no obvious change after the fixation and deacidification processes.
- Published
- 2023
- Full Text
- View/download PDF
63. Recommendation System for Newly Published Research Papers using Joint Multi Relation Model
- Author
-
null Madhesh V, null Manikandan R, null Mohamed Yasar A, null Naveen Kumar G, and null Nithiya K
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Abstract
Fetching recently published research papers is a time consuming and tedious process for young researchers and even for experts. In real time searching papers based on keywords and queries in search engines may not result apt or proper research papers that the user searched for. Because these research papers lack proper links and citations that help to find the most concerned papers. To overcome this problem a hybrid model is proposed with time constraint that combines the Text mining and Recommendation algorithm. The preference of papers and articles are jointly modeled with matrices sharing common dimensions of researchers and papers. The initial process starts with text mining algorithm that matches keywords with the data available in web pages. The post process consists of recommendation algorithms with latent matrix factorization and tensor matrix with similar preferences in a dimensional space. This paper explains the hybrid experimental model that helps users to fetch the most recent and relevant paper in a short period of time
- Published
- 2023
- Full Text
- View/download PDF
64. Improving lecturers' competence in writing nationally accredited scientific papers
- Author
-
Muhamad Uyun
- Subjects
Geography, Planning and Development ,General Earth and Planetary Sciences ,Water Science and Technology - Abstract
Lecturers are required to produce scientific papers for improving their careers. However, there are many lecturers who do not understand how to write scientific papers and to publish it. This community service aims to improve the competence of lecturers in writing scientific papers so that they can make good scientific papers and can publish it. The program is carried out in two stages: 1) preparation stage, and 2) implementation through training on writing scientific paper. The results showed that the participants were able to understand 1) the basics of scientific writing, 2) the parts of scientific articles, 3) the scientific publication policies, 4) the criteria and requirements for publishing scientific papers in accredited journals, 5) the paraphrase techniques, 6) the citation using Mendeley, and 7) the technique of compiling according to the standard template of accredited journals.
- Published
- 2023
- Full Text
- View/download PDF
65. Use of bacterial cellulose in paper document restoration
- Subjects
Ocean Engineering ,Safety, Risk, Reliability and Quality - Abstract
Показана эффективность применения суспензии бактериальной целлюлозы Komagataeibacter (Gluconacetobacter) rhaeticus при реставрации документов на бумаге аэродинамическим способом. Одной из проблем при реставрации документов на бумаге методом восполнения утраченных частей документа является прочность шва между реставрируемым документом и восполняющей частью. Для повышения прочности шва документ по контуру утрат обрабатывают связующими - растворами натриевой соли карбоксиметилцеллюлозы или крахмала. В данном исследовании при реставрации методом аэродинамического формования в качестве связующего была применена суспензия бактериальной целлюлозы Komagataeibacter (Gluconacetobacter) rhaeticus. Для создания прочного соединительного шва между реставрируемым документом и восполняющим волокнистым слоем по контуру утраты документа наносили суспензию бактериальной целлюлозы концентрацией 1,0 ± 0,1% масс., предварительно подготовленную в дезинтеграторе. Применение бактериальной целлюлозы в качестве связующего при аэродинамическом способе реставрации привело к повышению прочности сформованного шва в 1,5-2 раза, по сравнению с применением в качестве связующего растворов крахмала и натриевой соли карбоксиметилцеллюлозы. Искусственное тепло-влажное старение документа после реставрации в течение 12 суток показало, что прочность шва снижается после первых трех суток старения на 32% и затем стабилизируется. Это позволяет прогнозировать хорошую сохранность отреставрированного документа в процессе дальнейшего архивного хранения и пользования. С помощью программного комплекса, предназначенного для исследования памятников письменности путем анализа их цифровых изображений «Vestigium» показано, что рельеф поверхности листов документа после реставрации становится более сглаженным, что снижает возможность глубокого проникновения пыли в структуру листа и повышает срок использования документа. The effectiveness of the bacterial cellulose suspension Komagataeibacter (Gluconacetobacter) rhaeticus in the restoration of documents on paper using the aerodynamic method is shown. One of the problems in document restoration on paper using the method of replacing lost parts of a document is the strength of the seam between the document to be restored and the replacing part. To increase the strength of the seam the document is treated with binders - solutions of sodium salt of carboxymethylcellulose or starch on the contour of the loss. In this study, a suspension of bacterial cellulose Komagataeibacter (Gluconacetobacter) rhaeticus was used as a binder for the restoration by aerodynamic molding. In order to create a strong bonding seam between the restored document and the replenishing fibrous layer, a suspension of bacterial cellulose with a concentration of 1.0 ± 0.1 wt. %, previously prepared in a disintegrator, was applied along the contour of the lost document. The use of bacterial cellulose as a binder in the aerodynamic method of restoration led to an increase in the strength of the formed seam by 1.5-2.0 times compared to the use of starch solutions and sodium salt of carboxymethylcellulose as a binder. Artificial heat-moist aging of the document after restoration for 12 days showed that the suture strength decreased after the first three days of aging by 32% and then stabilized. This makes it possible to predict good preservation of the restored document during further archival storage and use. With the help of «Vestigium» software designed to study the monuments of writing by analyzing their digital images, it is shown that the relief of the document sheets surface after restoration becomes smoother, which reduces the possibility of deep penetration of dust into the sheet structure and increases the life of the document.
- Published
- 2023
- Full Text
- View/download PDF
66. The influence of drying temperatures on the properties of paper from sulphate unbleached softwood pulp
- Subjects
Ocean Engineering ,Safety, Risk, Reliability and Quality - Abstract
Эксперименты, описанные в статье, выполнялись в лабораторных условиях в рамках написания диссератции на соискание ученой степени кандидата технических наук. Актуальность и новизна подтверждена опытными инженерами ведуших компаний-производителей оборудования и передовых технологий в области ЦБП. На процесс сушки полотна бумаги и картона затрачивается наибольшее количество потребляемой на бумаго- и картоноделательных машинах энергии. Однако при этом удаляется незначительное количество влаги из материала, по сравнению с обезвоживаниемна сеточной и прессовой частях. Поэтому для снижения затрат теплоты, а также повышения производительности БДМ представляется целесообразной интенсификация процесса сушки при минимальных затратах энергии и сохранении ключевых технологических показателей выпускаемой продукции. Цель исследования - получение образцов бумаги разной массы одного квадратного метра, изготовленных из производственной сульфатной небеленой хвойной целлюлозы, размолотой в лабораторных условиях на коническом рафинере до различной степени помола с последующим отливом и сушкой при разных температурах. После кондиционирования образцы подвергались измерениям свойств бумаги методами неразрушающего и разрушающего контроля. Анализ влияния температур сушки на деформационно-прочностные и структурно-размерные свойства бумаги позволил выявить закономерности, которые могут быть использованы при дальнейших научных исследованиях, а также непосредственно внедрены в производство. Реконструкции, направленные на снижение потребления энергии, а также оптимизация и тонкая настройка технологических режимов процессов сушки бумажного полотна представляют собой одно из перспективных направлений модернизации технологических потоков и повышения конкурентоспособности отечественных и зарубежных предприятий. Researches described in this article were carried out in laboratory as part of writing PhD thesis in Engineering Science. The importance and novelty have been confirmed by experienced engineers from leading manufacturers of equipment and advanced technologies in the field of pulp and paper industry. The process of drying paper and board consumes the largest amount of energy in paper and board machines. At the same time, it contributes to remove a small amount of moisture from the material, compared to dewatering on the forming and press sections. Therefore, in order to reduce heat costs, as well as increase the productivity of the paper machine, it seems appropriate to intensify the drying process with minimal energy consumption and maintaining the key technological properties of paper. The goal of the study was to get paper samples of different basis weights, made from industrial sulfate unbleached softwood pulp, refined in laboratory on a conical refiner till defined grinding degrees, then forming and followed by drying at different temperatures. Analysis of the drying temperatures on the structural-dimensional and deformation-strength properties of paper made it possible to identify tendencies that can be used in further scientific researches, as well as directly introduce them into production. Rebuilds intended for reducing energy consumption, as well as optimizing and fine-tuning the technological modes of paper drying are one of the promising areas for upgrading production lines and increasing the competitiveness of domestic and foreign enterprises in current times.
- Published
- 2023
- Full Text
- View/download PDF
67. Incremental Question Paper Generator
- Author
-
null Satvik Agrasani, null Ketan Bhosale, null Sanskar Chavri, and null Abhiraj Kurade
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Abstract
Exams are getting digitized all over the world. Basically, meaning that the traditional paper-based tests are being replaced by the certain computer-based tests which have proven to be both more consistent in allocating marks and faster than teacher correcting papers. The traditional exams usually consisted of subjective answers which were not the best way of grading the student’s perception of the subject. Hence, we are developing a computer-based system that will generate MCQ based question that will be better suited to grade students academically. So, Incremental Question Paper Generator (IQPG) is an attempt at developing a software which can implement adaptive evaluation along with generation of questions on its own. The software aims to generate an increasingly difficult or easy in simpler words, it aims to generate a question paper which dynamically changes the difficulty of its questions. Along the same the software generates these questions by learning from a pre-made dataset of questions.
- Published
- 2023
- Full Text
- View/download PDF
68. Achievement Emotions in Paper-Based Exams vs. Computer-Based Exams
- Author
-
Reem AlSufayan and Dina Abdel Salam El-Dakhs
- Subjects
Education - Abstract
This study investigates the emotional experiences of undergraduate students when taking computer-based compared to traditional paper-based exams. The authors surveyed 144 students and conducted in-depth written interviews with 44 of them to gain a comprehensive understanding of their emotions and experiences. The findings revealed that students generally feel more positive emotions, such as enjoyment, hope, and pride during computer-based exams. Conversely, they experienced less anger, anxiety, and hopelessness compared to paper-based exams. However, they observed no significant differences in feelings of relief and shame between the two exam modes. The interview responses provided valuable insights into the reasons behind these emotions. Students found computer-based testing to be more efficient, user-friendly for language editing, and appreciated the auto-grading features. However, technical concerns were identified as a major challenge in this format. On the other hand, paper-based exams allowed students to avoid technical problems, draft their answers, and express ideas more effectively. Despite these advantages, students reported disliking the lengthiness of the written responses, the difficulty of editing, and the pressure of maintaining legible handwriting. Overall, this study sheds light on the emotional experiences of students in different exam formats, helping educators make informed decisions to optimize testing environments.
- Published
- 2023
- Full Text
- View/download PDF
69. Surface characterization of paper products by profilometry with a fractal dimension analysis
- Author
-
Yong Ju Lee, Young Chan Ko, Byoung Geun Moon, and Hyoung Jin Kim
- Subjects
Environmental Engineering ,Bioengineering ,Waste Management and Disposal - Abstract
A surface profilometry technique was used to characterize the surfaces of paper products. A stylus-contact type profilometer capable of simultaneously generating both surface roughness- and friction-profiles was used. As a stylus for the profilometer, a conical shape whose tip was rounded to have a 0.5 mm curvature radius was designed and successfully employed in both printing & writing (P&W) papers and hygiene papers such as bathroom tissues and kitchen towel. From the profiles, the mean absolute deviation (MAD) from the averages, i.e., R-MAD from the roughness average and F-MAD from the average coefficient of friction, were suggested as the new surface characterization parameters. To elucidate the surface roughness profiles by fractal dimension analysis, the variogram method was applied to get the fractal dimensions of the paper products. Generally, the value of the fractal dimension increased as the surface roughness increased. The surface profilometry technique with the fractal dimension analysis with the variogram method looks promising to gain additional insight on the surface characteristics of paper products.
- Published
- 2023
- Full Text
- View/download PDF
70. Evaluation of the Efficiency of Ti/IrO2/RuO2 Anode in COD Removal from Paper Industry Wastewaters by Electrooxidation Method
- Author
-
Baybars Ali Fil and Cansu Elgün
- Abstract
In the research, the electrooxidation method of the electrochemical treatment methods in thebatch system was explored a variety of experimental conditions for the treatment of wastewater from thepaper sector. 4 anodes and 4 cathodes sieve type plates with dimensions of 7 cm x 10 cm were positionedat 0,5 cm intervals in the 2000 mL volume jacketed glass reactor used for the treatment of wastewater fromthe paper industry, and 1200 mL wastewater was used in the testing. 4 coated Ti/IrO2/RuO2 electrodes ofthe sieve type were used as the anode material and 4 uncoated Ti electrodes of the sieve type were utilizedas the cathode material in the electrooxidation of effluent from the paper industry. In the experiments, theremoval rate of the COD (Chemical Oxygen Demand) pollutant parameter; The effects of supportingelectrolyte types and concentrations such as KCl, NaCl, NaNO3, and Na2SO4, and parameters such as initialpH value and current density of wastewater without supporting electrolyte were investigated. According tothe results obtained; In the experiments conducted at the natural pH value of wastewater, 18.55 mA/cm2was the most effective current density, 0.50 M NaCl was the most effective supporting electrolyte type andconcentration. The COD removal rate at the best conditions (37.11 mA/cm2current density) was 90.62%.In optimum conditions; 73.20% COD removal efficiency has been achieved.
- Published
- 2023
- Full Text
- View/download PDF
71. BAZE UNIVERSITY COMPUTER SCIENCE STUDENTS' PERSPECTIVES ON PEN AND PAPER EXAMS FOR PROGRAMMING, AND DATABASE MANAGEMENT
- Author
-
U. B. Abubakar and F. Peter
- Abstract
Information and communication technology (ICT) is becoming common in various industries, including education. Technology enhances teaching and learning. It aids instructors to do their part as pedagogical environment designers. ICT enables teachers to make their lessons engaging and understandable for students at all levels of educational programs. ICT integration in education is a technologically oriented teaching and learning process that is closely related to the usage of ICT as educational instruments in classrooms. Baze University fully utilizes ICT for both teaching and learning. In addition, the students of the Department of computer science at Baze University are been thoroughly exposed to the theoretical and practical applications of programming languages and constructs. Although anecdotal evidence and some published data suggest that paper-based exams are still frequently utilized in introductory computer programming and design courses, students frequently express a preference for computer-based exams. At Baze University, students are been examined using the pen-and-paper examination method throughout their study. The research approach was centered on a quantitative research methodology, utilizing focus group sessions for data collection to acquire data from 200 – 300 level students. The purpose of the research is to determine the satisfactory level of students that are been assessed using pen-and-paper exam methods for programming, database, and system design courses at Baze University. The findings of the research show that Baze University students would generally prefer a computer-based exam approach for programming, and database management courses.
- Published
- 2023
- Full Text
- View/download PDF
72. The Optical Papers of Isaac Newton Volume II: The Opticks and Related Papers ca. 1688–1717
- Author
-
Robert Goulding
- Subjects
History and Philosophy of Science - Published
- 2023
- Full Text
- View/download PDF
73. Examination Database and Online Paper Forming Algorithm for Mobile Personalized Learning Test
- Author
-
Wanwu Li, Lin Liu, Hui Zhang, Jinhong Li, and Zhi Wang
- Subjects
General Medicine - Abstract
It is crucial to advance network education exam informatization and mobile learning. One of them is the creation of a database system for exams, which contains crucial information. This study aims to analyze and solves key technologies including constraint check paper forming algorithms. This study using fuzzy query methods and spatial queries design a single exam table structure and exam papers for the exam database. The process of this study including collect and sort the complete set of GIS exams at major universities across the country, design a variety of GIS single questions, and build an exam database system. The result of this research is a personalized random paper formation system and query and spatial analysis by college and area for exam papers for the first time. It describes rich functions and stable performance by testing. The built system becomes an indispensable technical support instead of paper-based exams for information exams and scientific exams of many colleges and universities.
- Published
- 2023
- Full Text
- View/download PDF
74. Application of Fluid Mechanics based on Computer Virtual Reality in Pulp and Paper Engineering
- Author
-
Yunyun Long
- Abstract
The key technology with fast development speed, virtual computer reality belongs to a kind of data-based fluid mechanics from the aspect of the working medium. From the perspective of fluid mechanics, this paper develops an application system of fluid mechanics based on virtual computer reality in pulp and paper engineering. The structure and characteristics of pulp and paper clarify the development direction of computational fluid mechanics in pulp and paper. Based on the application of the developed system in pulp and paper making, this paper analyzes and optimizes its structure to provide a scientific reference for the development and application of computer virtual reality fluid mechanics in pulp and paper making.
- Published
- 2023
- Full Text
- View/download PDF
75. Literature review papers: the search and selection process
- Author
-
Bert van Wee and David Banister
- Subjects
Literature review ,methodology ,Library and Information Sciences ,basic and reasoned approaches ,Management Information Systems - Abstract
In an earlier publication (Van Wee & Banister, 2016), we explained that literature review papers (LRP) should explicitly report on the search and selection process of documents included. In this paper, we present two approaches for reporting the methodology for doing this: a basic approach and a reasoned approach. The basic approach includes reporting databases(s), keywords, search strings, snowballing, the selection of documents, presenting an overview of documents included and reporting additional selection criteria (if applicable). The reasoned approach adds to the basic approach (what was done) by explicitly explaining the motivation for choices and showing the selection process graphically (why it was done). The two approaches should be seen as options, and not the only alternatives. We recommend that authors of LRPs depart from these approaches and modify them where appropriate. The important lesson is that authors should be explicit about the approach adopted, as this enables the reader to understand the thinking behind the LRP and the conclusions drawn.
- Published
- 2023
- Full Text
- View/download PDF
76. A Comparative Analysis of the 2018-2021 College Entrance Examination Mathematics National Paper (Science) questions
- Author
-
Huirong Zhang
- Abstract
The college entrance examination system is undergoing constant reform and improvement. In 2021, the new college entrance examination system will be implemented, which will no longer distinguish between arts and sciences. This is a challenge for the proposition of math questions in the college entrance examination. Taking the 2018-2020 National examination paper (science) and 2021 National new high examination paper, a total of 11 mathematics advanced examination questions as the research object, using comparative research method, case study method, statistical analysis method and other research methods, mainly studied the examination content and investigation requirements of the examination paper. Based on the above research, the paper structure, the content of the paper, the core quality of mathematics and the similarities and differences of investigation requirements are obtained, and the proposition of the new college entrance examination mathematics and teachers are put forward.
- Published
- 2023
- Full Text
- View/download PDF
77. Decentralised Techniques Based White Paper Publication Portal
- Author
-
Hemang Joshi, Hitesh Mewada, Chandan Gupta, Zeyan Ansari, and Vinayak Shinde
- Subjects
Pharmacology - Abstract
This paper presents the development of a web application, which aims to provide a platform for white paper authors to upload and have their documents reviewed by industry experts and scholars. The web app will utilize Ethereum block chain technology to provide security and authenticity to the uploaded white papers, which will be converted into non-fungible tokens to ensure their uniqueness. The authors will have the ability to self-upload their white papers onto a secured IPFS (Inter Planetary File System) database and use ERC721 (Ethereum Request for Comments) protocols to mint them as non-fungible tokens. In addition, the web app will allow white paper authors to receive crowdfunded support from users holding ETH in their web3 wallets. With our unique authentication system utilizing decentralized techniques, the Paper Publication Portal ensures that only verified authors can publish their work, enhancing both the security and credibility of the platform.
- Published
- 2023
- Full Text
- View/download PDF
78. Survey Paper: Plant Disease Detection using CNN
- Author
-
null Sakshi Rudrawar, null Yogini Pujari, null Apeksha Savant, and null Prof. Mrutyunjay Kumar
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Abstract
“Agriculture provides employment opportunities for village people on large scale in developing country like India. Most of Indian farmers are adopting manual cultivation due to lagging of technical knowledge. In addition that, Plant leaf disease has been one of the major threats to for plants since long ago because it reduces the crop yield and compromises. plant diseases are studied in the literature, mostly focusing on the biological aspects. They make predictions according to the visible surface of plants and leaves. This paper presents a system that is used to classify and detect plant leaf diseases using machine learning techniques. In our work, we have taken specific types of plants; include tomatoes, pepper, and potatoes, as they are the most common types of plants in the world and in Iraq in particular. Using machine learning algorithms, which comprise procedures like dataset construction, loading images, prepping, segmentation, feature extraction, training a classifier, and classification, it is possible to classify plant diseases. This paper presents a Convolutional Neural Network (CNN) model algorithm based method for Agricultural leaf disease detection and classification. So, the neural networks can capture the colours and textures of lesions specific to respective diseases upon diagnosis
- Published
- 2023
- Full Text
- View/download PDF
79. Bio-Attractant of termites bait from waste paper and extract Ocimum basilicum Linn against Subterranean Termites Coptotermes curvignathus Holmgren
- Author
-
Farah Diba
- Subjects
General Medicine - Abstract
Termites were the most destroying wood organism and one of the methods for controlling termites and suppressing its population is the baiting system. One of the conditions in the baiting system method is that the bait must be able to attract termites. Mostly the attractant is made from an extract of the plant. This research aimed to evaluate the attractants of termites bait from waste paper and extract of basil leaf (Ocimum basilicum) against subterranean termites Coptotermes curvignathus Holmgren. Leaves of Ocimum basilicum extracted with maceration process with ethanol. After extraction, the yield was made into five concentration, consist of 2%, 4%, 6%, 8% and 10%. The waste paper was made into termite’s bait with a square bait with measure 2 cm long x 2 cm wide x 1 cm thick. The result of research showed that the average of termites mortality value was 18.79% - 97.58%. The highest termites mortality was achieve on 10% concentration of extract Ocimum basilicum. Its followed by the concentration 8% with mortality value 91.52%; concentration 6% with mortality value 78.18%; concentration 4% with mortality value 61.82% and concentration 2% with mortality value 51.52%. Meanwhile on control treatment the mortality value was 18.79%. The average of weight loss of termite’s bait was 3.41% - 8.36%. The highest weight loss was achieved on concentration 8% and this bait was more attractive to termites. Termite’s bait from waste paper and extract of Ocimum basilicum was attractant to subteranean termites Coptotermes curvignathus and the optimum concentration was 8%.
- Published
- 2023
- Full Text
- View/download PDF
80. Evaluating the content validity of the undergraduate summative exam question papers of Forensic Medicine & Toxicology from 6 medical universities in India
- Author
-
Vijay Kautilya Dayanidhi, Arijit Datta, Shruti P Hegde, and Preeti Tiwari
- Subjects
Reviews and References (medical) ,Medicine (miscellaneous) ,Health Professions (miscellaneous) ,Education - Abstract
Introduction: Summative assessments play a major role in shaping the student’s learning. There is little literature available on validity of summative assessment question papers in Forensic Medicine & Toxicology. This study analyses 30 question papers from 6 reputed universities for content validity. Methods: A retrospective cross-sectional record-based observational study was conducted where 30 university summative question papers in Forensic Medicine & Toxicology from 6 universities across India were evaluated for content validity. The learning domain assessed, the type of questions asked, and sampling of the content was compared and presented in the results. Results: From the results of the study, it was noted that 80% weightage was allotted to recall in most papers and only one paper tested for application. 70 to 80% of the marks were allotted to Forensic Pathology leading to disproportionate sampling. Core areas in Toxicology and Medical Jurisprudence were sparsely assessed. Conclusion: The content validity of the summative question papers in Forensic Medicine and Toxicology was unsatisfactory, emphasising the need for evaluation of the clarity and efficacy of the blueprints being used by the universities. Faculty training to motivate and influence a change in the mindset is necessary to bring about a course correction.
- Published
- 2023
- Full Text
- View/download PDF
81. Shredding Paper: The Rise and Fall of Maine's Mighty Paper Industry, by Michael Hillard (Ithaca: Cornell, 2021)
- Author
-
Richard McIntyre
- Subjects
Sociology and Political Science - Published
- 2023
- Full Text
- View/download PDF
82. Development and study of Chinese folk art of paper cutting
- Author
-
keying wang
- Subjects
General Medicine - Abstract
As a type of Chinese folk art, jianzhi paper carving expresses not only people's spiritual life, but also their aspirations for a better life. Chinese paper carving art is filled with simple life wisdom and good wishes, and the figurative symbols contain unique artistic value and national traits. However, in today's multifaceted development, the traditional art of paper carving with a thousand years of history is gradually fading away. Traditional folk art represented by paper cutting has also begun to be introduced into new fields, not only in graphic design, but also in installation design of public spaces, showing its rich expressiveness and deep artistic value. This paper will examine the characteristics of traditional national paper carving, highlight cultural differences between Eastern and Western paper carving art, combine traditional folk art of paper carving with modern artistic expressions, analyse symbolic and emotional imagery and explore new ideas for the development and innovation of Chinese national art.
- Published
- 2023
- Full Text
- View/download PDF
83. Rapid Assembly of Cellulose Microfibers into Translucent and Flexible Microfluidic Paper-Based Analytical Devices via Wettability Patterning
- Author
-
Peng Ma, Shanshan Wang, Jie Wang, Yu Wang, Yue Dong, Shunji Li, Huiying Su, Peng Chen, Xiaojun Feng, Yiwei Li, Wei Du, and Bi-Feng Liu
- Subjects
Paper ,Glucose ,Lab-On-A-Chip Devices ,Microfluidics ,Wettability ,Humans ,Microfluidic Analytical Techniques ,Cellulose ,Analytical Chemistry - Abstract
Microfluidic paper-based analytical devices (μPADs) are emerging as powerful analytical platforms in clinical diagnostics, food safety, and environmental protection because of their low cost and favorable substrate properties for biosensing. However, the existing top-down fabrication methods of paper-based chips suffer from low resolution (200 μm). Additionally, papers have limitations in their physical properties (e.g., thickness, transmittance, and mechanical flexibility). Here, we demonstrate a bottom-up approach for the rapid fabrication of heterogeneously controlled paper-based chip arrays. We simply print a wax-patterned microchip with wettability contrasts, enabling automatic and selective assembly of cellulose microfibers to construct predefined paper-based microchip arrays with controllable thickness. This paper-based microchip printing technology is feasible for various substrate materials ranging from inorganic glass to organic polymers, providing a versatile platform for the full range of applications including transparent devices and flexible health monitoring. Our bottom-up printing technology using cellulose microfibers as the starting material provides a lateral resolution down to 42 ± 3 μm and achieves the narrowest channel barrier down to 33 ± 2 μm. As a proof-of-concept demonstration, a flexible paper-based glucose monitor is built for human health care, requiring only 0.3 μL of sample for testing.
- Published
- 2022
- Full Text
- View/download PDF
84. Current approaches and challenges of sample preparation procedures for the safety assessment of paper and cardboard food contact materials: A comprehensive review
- Subjects
OF-THE-ART ,sample preparation ,MIGRATION ,BOARD ,food contact chemicals ,SUBSTANCES ,food contact materials ,MINERAL-OIL HYDROCARBONS ,DRY FOODS ,CHEMICAL-ANALYSIS ,paper and cardboard ,CONTAMINANTS ,PACKAGING MATERIALS ,food packaging ,RECYCLED PAPERBOARD - Abstract
In the European Union (EU), Regulation (EC) 1935/2004 provides a harmonized legal EU framework and sets out the general principles for safety and inertness for all Food Contact Materials (FCMs) and Food Contact Articles. From a food safety point of view, however, specific EU legislation for paper and cardboard FCMs is lacking, while at Member State level, national legislation differs among countries. More than 11,000 chemicals have been identified in all types of FCMs, most of them without any information on toxicity or migration potential from FCM to food. The present review shows a wide variability of protocols, approaches, and conditions used in scientific studies, which are difficult to compare. In this regard, procedures and conditions laid down in EU legislation for plastics and European Standards (EN protocols) may serve as a good basis for the future sample preparation procedures in the framework of paper and cardboard FCMs safety assessment. Challenges on sample preparation procedures are presented involving the interlinked steps of sample preparation, conditions used and their impact in chemical analysis and in vitro bioassay testing. Currently, there is no general consensus on the criteria for structuring, evaluating, and tuning sample preparation procedures for paper and cardboard FCMs. For this purpose, a set of modified criteria and a decision tree are proposed based on the literature. Along this, mass transfer processes occurring in paper and cardboard FCMs and parameters affecting chemical migration need to be accounted for prior to reaching general consensus on criteria for sample preparation procedures.
- Published
- 2022
- Full Text
- View/download PDF
85. Laser-induced graphene from paper for non-enzymatic uric acid electrochemical sensing in urine
- Author
-
Bohdan Kulyk, Sónia O. Pereira, António J.S. Fernandes, Elvira Fortunato, Florinda M. Costa, Nuno F. Santos, CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N), DCM - Departamento de Ciência dos Materiais, and UNINOVA-Instituto de Desenvolvimento de Novas Tecnologias
- Subjects
Flexible electronics ,Chemistry(all) ,Materials Science(all) ,SDG 3 - Good Health and Well-being ,Electrochemical biosensors ,Paper-LIG ,SDG 13 - Climate Action ,General Materials Science ,Human urine ,General Chemistry ,Graphene ,Uric acid - Abstract
This work was developed within the scope of project i3N (LA/P/0037/2020. I.P. N. F. Santos thanks i3N for the BPD Grant BPD/UI96/5177/2020. S. O. Pereira thanks i3N for the BPD Grant BPD/UI96/5808/2017. The authors also thank Jonas Deuermeier for the XPS measurements. Publisher Copyright: © 2022 Elsevier Ltd Laser-induced graphene from paper (paper-LIG) was applied in non-enzymatic electrochemical sensing of uric acid (UA) in human urine. Paper-LIG was formed by CO2 laser modification of paper into a 3D graphene arrangement. Kinetic analysis of paper-LIG electrodes returned effective heterogeneous electron transfer standard rate constants of 1.4 × 10−3 cm s−1 and 7.8 × 10−4 cm s−1 for [Ru(NH3)6]2+/3+ and [Fe(CN)6]4−/3− redox probes, respectively. These electrodes were able to detect and quantify uric acid in PBS within the 10–300 μM range at pH between 5.6 and 7.4. At pH 7.4, a linear response (R2 = 0.999) from 10 to 250 μM was achieved, with a limit of detection of 3.97 μM and a sensitivity of 0.363 μA cm−2 μM−1. Paper-LIG electrodes denoted adequate selectivity in synthetic urine as well as in ascorbic acid (AA) and dopamine (DA)-containing electrolytes. Determination of urinary UA content in human samples returned a concentration of c.a. 1.8–1.9 mM, within the range for healthy individuals. Recoveries of samples spiked with 50 and 100 μM UA were 100.6% and 95.4%, respectively, with satisfactory reproducibility and stability. These cheap, lightweight, flexible, and eco-friendly paper-LIG biosensors for non-enzymatic quantification of UA in human urine pave the way to widespread application in the detection of other important biomarkers. publishersversion published
- Published
- 2022
- Full Text
- View/download PDF
86. Current approaches and challenges of sample preparation procedures for the safety assessment of paper and cardboard food contact materials: A comprehensive review
- Author
-
Misha Vrolijk, Athanasios Kourkopoulos, and Dick Sijm
- Subjects
OF-THE-ART ,Food Safety ,sample preparation ,MIGRATION ,BOARD ,Food Contamination ,food contact chemicals ,SUBSTANCES ,Allergens ,food contact materials ,MINERAL-OIL HYDROCARBONS ,DRY FOODS ,CHEMICAL-ANALYSIS ,paper and cardboard ,CONTAMINANTS ,European Union ,PACKAGING MATERIALS ,Plastics ,food packaging ,Food Science ,RECYCLED PAPERBOARD - Abstract
In the European Union (EU), Regulation (EC) 1935/2004 provides a harmonized legal EU framework and sets out the general principles for safety and inertness for all Food Contact Materials (FCMs) and Food Contact Articles. From a food safety point of view, however, specific EU legislation for paper and cardboard FCMs is lacking, while at Member State level, national legislation differs among countries. More than 11,000 chemicals have been identified in all types of FCMs, most of them without any information on toxicity or migration potential from FCM to food. The present review shows a wide variability of protocols, approaches, and conditions used in scientific studies, which are difficult to compare. In this regard, procedures and conditions laid down in EU legislation for plastics and European Standards (EN protocols) may serve as a good basis for the future sample preparation procedures in the framework of paper and cardboard FCMs safety assessment. Challenges on sample preparation procedures are presented involving the interlinked steps of sample preparation, conditions used and their impact in chemical analysis and in vitro bioassay testing. Currently, there is no general consensus on the criteria for structuring, evaluating, and tuning sample preparation procedures for paper and cardboard FCMs. For this purpose, a set of modified criteria and a decision tree are proposed based on the literature. Along this, mass transfer processes occurring in paper and cardboard FCMs and parameters affecting chemical migration need to be accounted for prior to reaching general consensus on criteria for sample preparation procedures.
- Published
- 2022
- Full Text
- View/download PDF
87. Paper Device Combining CRISPR/Cas12a and Reverse-Transcription Loop-Mediated Isothermal Amplification for SARS-CoV-2 Detection in Wastewater
- Author
-
Haorui Cao, Kang Mao, Fang Ran, Pengqi Xu, Yirong Zhao, Xiangyan Zhang, Hourong Zhou, Zhugen Yang, Hua Zhang, and Guibin Jiang
- Subjects
SARS-CoV-2 ,Biotin ,CRISPR/Cas12a ,General Chemistry ,Wastewater ,Fluoresceins ,Sensitivity and Specificity ,RNA, Viral ,Environmental Chemistry ,CRISPR-Cas Systems ,Nucleic Acid Amplification Techniques ,Pandemics ,wastewater ,RT-LAMP ,paper device - Abstract
Wastewater-based surveillance of the COVID-19 pandemic holds great promise; however, a point-of-use detection method for SARS-CoV-2 in wastewater is lacking. Here, a portable paper device based on CRISPR/Cas12a and reverse-transcription loop-mediated isothermal amplification (RT-LAMP) with excellent sensitivity and specificity was developed for SARS-CoV-2 detection in wastewater. Three primer sets of RT-LAMP and guide RNAs (gRNAs) that could lead Cas12a to recognize target genes via base pairing were used to perform the high-fidelity RT-LAMP to detect the N, E, and S genes of SARS-CoV-2. Due to the trans-cleavage activity of CRISPR/Cas12a after high-fidelity amplicon recognition, carboxyfluorescein-ssDNA-Black Hole Quencher-1 and carboxyfluorescein-ssDNA-biotin probes were adopted to realize different visualization pathways via a fluorescence or lateral flow analysis, respectively. The reactions were integrated into a paper device for simultaneously detecting the N, E, and S genes with limits of detection (LODs) of 25, 310, and 10 copies/mL, respectively. The device achieved a semiquantitative analysis from 0 to 310 copies/mL due to the different LODs of the three genes. Blind experiments demonstrated that the device was suitable for wastewater analysis with 97.7% sensitivity and 82% semiquantitative accuracy. This is the first semiquantitative endpoint detection of SARS-CoV-2 in wastewater via different LODs, demonstrating a promising point-of-use method for wastewater-based surveillance.
- Published
- 2022
- Full Text
- View/download PDF
88. Silver nanoparticle inkjet-printed multiband antenna on synthetic paper material for flexible devices
- Author
-
Hattan F. Abutarboush
- Subjects
Materials for antennas ,Multiband antenna ,Flexible antenna ,General Engineering ,Silver nanoparticles ,TA1-2040 ,Paper antenna ,Engineering (General). Civil engineering (General) ,Inkjet-printed antenna - Abstract
Flexible inkjet-printed antenna is presented. The proposed antenna is designed on a synthetic paper substrate with an area of 35 × 40 mm2 to provide frequency bands for many popular wireless applications. Simulation and measurement are used to study the performances, including the frequency bands, radiation patterns, peak gains and efficiency, of the antenna in two severely bending conditions with a curvature radius of 20 mm in the forward and backward directions. The antenna printed in photo papers material could not be fully flexible due to cracks introduced to the coating material on the surface of the photo paper. Hence, the resin coated material was only suitable for curved devices. The synthetic paper material used in this paper does not have a resin coating, therefore, the antenna does not lose its flexibility and can be bent in both the forward and backward directions without any cracks. Results show that bending in these two conditions has insignificant effects on the performances of the antenna. With a curvature radius of 20 mm in the forward direction, the measured peak gain and efficiency of the antenna are in the ranges from −3 to +2 dBi and 40% to 60%, respectively. The results together with the low cost make the antenna most suitable for many flexible 5G communications devices.
- Published
- 2022
- Full Text
- View/download PDF
89. Pemahaman Konsep Matematika Siswa Kelas III di Sekolah Dasar Surabaya Materi Pecahan Berbantu Media Folding Paper
- Author
-
Afiani, Kunti Dian Ayu and Faradita , Meirza Nanda
- Subjects
Matematika Realistik ,Folding Paper ,Pemahaman Konsep - Abstract
This article aims to examine students' understanding of concepts in learning mathematics with the help of Folding Paper, the study in this article focuses on three factors, namely: Results of interviews with teachers of understanding mathematical concepts, results of observations of understanding mathematical concepts and the results of applying the RME learning model to fractional material. The method in this research uses descriptive qualitative. Sources of data consist of interviews with teachers, observations and tests. For data analysis techniques using quantitative and descriptive qualitative data analysis. From the results of interviews, observations and tests that students' understanding of mathematical concepts is still relatively low., Artikel ini bertujuan untuk mengkaji pemahaman konsep siswa dalam pembelajaran matematika materi pecahan yang berbantu media Folding Paper, kajian dalam artikel ini fokus tiga faktor yaitu : Hasil wawancara dengan guru pemahaman konsep matematika, hasil observasi pemahaman konsep matematika dan hasil penerapan model pembelajaran RME pada materi pecahan. Metode dalam penelitian ini menggunakan deskriptif kualitatif. Sumber data terdiri dari wawancara dengan guru, observasi dan tes. Untuk teknik analisis data menggunakan data analisis kuantitatif dan deskriptif kualitatif. Dari hasil wawancara, observasi dan tes bahwa pemahaman konsep matematika siswa masih terbilang rendah.
- Published
- 2022
- Full Text
- View/download PDF
90. A Review Paper on PG Recommendation System
- Author
-
Kumar Abhay Gupta, Shipra Katiyar, Saumya Shahi, Shreya Awasthi, and Mandeep Katre
- Subjects
General Medicine - Abstract
Day by day world population is growing rapidly and a huge amount of people shifting to large cities and new places for work, education or job purpose, or a better life. That is why the housing demand is increasing and house renting becoming an elemental part of our society. As a result, I realized the importance of an online house renting website and come up with a decision to implement a such web application. In this paper rental website development is discussed. Through this website, tenants can rent properties and landlords can upload their property details for rent. This website will help users to give or take rent houses without dealing with flat brokers to finally reach an agreement that suits the interests of all parties. The packaging and shifting services facility will help users to shift valuable things safely to destinations. To implement, and testing of the proposed system, this application interface has been developed using HTML, CSS, JavaScript, Bootstrap, PHP, and MySQL database server that allows for making web pages interactive and responsive. This system was developed in such a manner so that it can provide a maximum user-friendly interface, and users can use it more efficiently.
- Published
- 2023
- Full Text
- View/download PDF
91. Research Paper on Scripting Memories Using Fullstack
- Author
-
Mini Jain, Shray Sharma
- Subjects
General Medicine - Abstract
Based on travel notes and reviews from the others opinions, this paper have made a word segmentation which describes the use of MERN technology in the project. This project also includes the scripting languages like HTML, CSS and JavaScript. With the help of HTML, we are building a website. Here, we are using Nav bar, tables and many more thing to look the website attractive. and with the help of CSS, It makes website cool and user-friendly. In CSS, we are using flex-box, grid and Bootstrap. And With the help of JavaScript, It will be show some alert message and more.
- Published
- 2023
- Full Text
- View/download PDF
92. A Review Paper on New Approaches of Vulnerability
- Author
-
Jibin Varghese, Sachin Jain, and Sunil Gupta
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Abstract
As the use of social media continues to grow, so does the integration of artificial intelligence (AI) and machine learning (ML) in social media platforms. This research paper examines the impact of AIML on social media, including both positive and negative effects. Through a review of literature and case studies, we find that AIML has improved customer service, personalized content and advertising, enhanced user experience, but also raised concerns about privacy and bias. Future research should focus on ethical considerations and potential limitations of AIML in social media.
- Published
- 2023
- Full Text
- View/download PDF
93. Review Paper on Advancement in Mobile Networks
- Author
-
Harish Kumar Choudhary, Sachin Jain, and Sunil Gupta
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Abstract
With time there is an advancement in technology, one technology that advances from generation to generation is mobile networks. There has been a huge evolution in mobile networks in the last few decades. As the data increases there is a need for a faster and higher bandwidth network to access that data. Fast mobile networks include low latency, more secure, and high-rate data transfer. In the last few decades, there has been a vast improvement. The network started from 1G followed by 2G, 3G, 4G, 5G, and it is still going. In this review paper, an attempt has been made to show the difference and advancement between generations by considering various aspects like speed, access time, data transfer time, data rates, and we are also highlighting the challenges and necessities.
- Published
- 2023
- Full Text
- View/download PDF
94. Review Paper on Weather Forecasting App
- Author
-
Montu Saw, Sachin Jain, and U Ragavendran
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Abstract
Weather forecasting is the use of science and technology to predict the condition of the weather for a given area. It is one of the most difficult issues the world over. This project aims to estimate the weather by utilizing predictive analysis. For this reason, analysis of various data mining procedures is needed before apply. This paper introduces a classifier approach for prediction of weather condition and shows how Naive Bayes and Chi square algorithm can be utilized for classification purpose. This system is a web application with effective graphical User Interface. User will login to the system utilizing his user ID and password. User will enter some information such as current outlook, temperature, humidity and wind condition. This system will take this parameter and predict weather after analyzing the input information with the information in database. Consequently, two basic functions to be specific classification (training) and prediction (testing) will be performed. The outcomes demonstrated that these data mining procedures can be sufficient for weather forecasting.
- Published
- 2023
- Full Text
- View/download PDF
95. A Review Paper on New Approaches of Vulnerability
- Author
-
Arvind Budania, Sachin Jain, and Vikram Singh
- Subjects
General Earth and Planetary Sciences ,General Environmental Science - Abstract
Vulnerability assessment is a critical process in identifying and mitigating potential security risks in various systems. With the increasing complexity and diversity of modern technologies, traditional vulnerability assessment methods may not be sufficient to address emerging threats effectively. In recent years, new approaches have emerged that leverage advanced techniques, including machine learning and artificial intelligence, to enhance the accuracy and efficiency of vulnerability assessment. In this review paper, we explore the latest developments in vulnerability assessment and provide a comprehensive analysis of various new approaches. We discuss the advantages and limitations of these approaches and provide insights into their practical applications.
- Published
- 2023
- Full Text
- View/download PDF
96. ОСОБЛИВОСТІ ВІДТВОРЕННЯ ІДІОСТИЛЮ ДЖ. ГРІНА В УКРАЇНСЬКОМУ ПЕРЕКЛАДІ (НА МАТЕРІАЛІ РОМАНІВ 'PAPER TOWNS' ТА 'THE FAULT IN OUR STARS')
- Abstract
Стаття присвячена дослідженню особливостей відтворення ідіостилю Джона Гріна в українському перекладі. Проблема ідіостилю розглядається в контексті збереження особливостей індивідуальної творчої манери автора у перекладі. Матеріалом статті вибрано романи Джона Гріна Paper towns (2008) та The Fault in Our Stars (2012), а також переклади романів «Паперові міста» (2017) та «Винні зірки» (2017) українською мовою, здійснені Вірою Назаренко. Методологічною базою для практичного аналізу слугують положення сучасного перекладознавства щодо основних стратегій (Л. Венуті), які дозволяють адекватно перекласти художній твір (доместикація та форенізація), та тактик, якими перекладачі послуговуються для реалізації вибраної стратегії. У статті вибрано класифікацію тактик перекладу, запропоновану Ж. Віне та Ж. Дарбеньє та доповнену Е. Пімом. Метою статті є з’ясування особливостей індивідуального стилю Джона Гріна та відтворення їх у перекладі українською мовою. Однією з головних особливостей творчого стилю письменника є використання великої кількості сленгових одиниць у романах, оскільки їхньою цільовою аудиторією є підлітки. Предметом дослідження вибрано стратегії та тактики перекладу сленгових одиниць для відтворення підліткового соціолекту в україномовній версії романів. Дослідження виявило, що переважаючою стратегією перекладу була доместикація, для реалізації якої перекладачка послуговувалася здебільшого такими тактиками, як: модуляція, еквіваленція, узагальнення та культурна заміна. Це дало змогу не тільки зберегти підлітковий соціолект у перекладах, але й відтворити емотивний, експресивний та стилістичний колорит романів.
- Published
- 2023
- Full Text
- View/download PDF
97. This paper aims to inquire for the sociodemographic structure of the Venezuelan occupied labour force and its differences in comparison to the national occupied labour force in the city of Bogotá, Colombia. To achieve this purpose, this research relies on data for the year 2021 from the Integrated Great Survey of Households (Gran Encuesta Integrada de Hogares - GEIH), a monthly socio demographic survey GEIH that captures information related to the main characteristics of the studied population. In this sense, comparisons in terms of educational levels, income, occupational status, family structure, gender and age groups were done in order to determine differences and common patterns. Finally, a hierarchical cluster analysis strategy was proposed to identify possible sociodemographic typologies of the Venezuelan labour force
- Author
-
David Esteban Rojas Ospina
- Abstract
This paper aims to inquire for the sociodemographic structure of the Venezuelan occupied labour force and its differences in comparison to the national occupied labour force in the city of Bogotá, Colombia. To achieve this purpose, this research relies on data for the year 2021 from the Integrated Great Survey of Households (Gran Encuesta Integrada de Hogares - GEIH), a monthly socio demographic survey GEIH that captures information related to the main characteristics of the studied population. In this sense, comparisons in terms of educational levels, income, occupational status, family structure, gender and age groups were done in order to determine differences and common patterns. Finally, a hierarchical cluster analysis strategy was proposed to identify possible sociodemographic typologies of the Venezuelan labour force.
- Published
- 2023
- Full Text
- View/download PDF
98. Study of Succession Processes on Frozen Lignin-containing Sediments of OAO 'Baikal Pulp and Paper Mill' and Soils Obtained on the Basis thereof
- Author
-
A.S. Shatrova
- Subjects
Ecology ,Management, Monitoring, Policy and Law ,Pollution - Abstract
The dynamics and efficiency of the use of frozen lignin-containing deposits of the pulp and paper industry and soils obtained on the basis thereof for the intensified reclamation succession of disturbed lands were analyzed. It was proved that over a four-year experimental period, an active process of self-overgrowing occurs with a change and an increase in the species diversity of phytocenoses with the stabilization of chemical and agrochemical composition of dumps of frozen lignin-containing sediments and soils as per the norme of GOST 54534-2011 “Resource saving. Sewage sludge. Requirements for disturbed lands for reclamation”.
- Published
- 2023
- Full Text
- View/download PDF
99. Cytogenetic and molecular genetic diagnostics in oncohematological disorders: a position paper of the Organization of Molecular Geneticists in Oncology and Oncohematology
- Author
-
G. А. Tsaur, Yu. V. Olshanskaya, T. N. Obukhova, A. B. Sudarikov, O. V. Lazareva, and T. L. Gindina
- Subjects
Hematology - Abstract
Introduction. Currently, there is no unequivocal opinion on the optimal list of studies for the genetic diagnosis of oncohematological disorders in children and adults. These discrepancies are due to the limited technological capabilities of laboratories, the rapid development of science, and a significant expansion of the range of new molecular markers, that are attractive, but only for a limited group of patients. Moreover, in modern conditions of limited access to resources, it seems important to bring desires, interests and opportunities to a common denominator. Aim — to develop unified approaches to the cytogenetic and molecular genetic diagnosis of oncohematological diseases in children and adults based on the consensus opinion of the panel of experts. Main findings. The review proposes the arrangement of cytogenetic and molecular genetic diagnostic tests in oncohematological disorders in children and adults into 3 categories depending on the frequency of genetic aberrations, the study complexity and the prognostic impact. Based on this and taking into account the diagnosis and age of patients, the minimal and optimal lists of clinically significant parameters and research markers were identified. The basic preanalytical principles for conducting cytogenetic and molecular genetic studies in oncohematology are pointed out. A brief description of a conventional cytogenetic study and a polymerase chain reaction for the diagnosis of oncohematological diseases is given. The paper also focused on the need for reference diagnostics of cytogenetic and molecular genetic studies in oncohematology. The article is addressed to the specialists in the field of laboratory genetics, clinical laboratory diagnostics, but may also be of interest to hematologists, pediatric oncologists and doctors of related branches.
- Published
- 2023
- Full Text
- View/download PDF
100. Share of mechanical-biological installation of waste processing (mbp) in the level of recycling and preparation for re-use of paper, metals, plastics, and glass achieved by municipalities
- Author
-
Anna Krysztopik, Izabela Anna Tałałaj, and Paweł Biedka
- Subjects
Economics and Econometrics ,Ecology ,Management, Monitoring, Policy and Law - Abstract
The article aims to determine the share of mechanical-biological installation of waste processing (MBP) in the levels of recycling and preparation for the reuse of paper, metals, plastics, and glass (PMPG) achieved by municipalities. Two MBP installations were taken for the analysis - with the highest and the lowest share of municipalities in the Podlaskie Voivodship (Poland), which reached the recycling level required in 2019. In order to determine the share of MBP installations in the level of recycling achieved by communes, the share of the mass of recycled PMPG waste segregated from mixed municipal waste was calculated: in the total mass of generated PMPG waste and in the total mass of recycled PMPG waste from the municipal waste stream. On the basis of the conducted analyses, it should be stated that the MBP installation may have an impact on the achievement by municipalities of the recycling level required by law.
- Published
- 2023
- Full Text
- View/download PDF
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.