5,367 results
Search Results
2. Optimal paper web weight control system based on the Pontryagin’s maximum principle
- Author
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Natalia Lysova and Nina V. Myasnikova
- Subjects
lcsh:GE1-350 ,Computer science ,0211 other engineering and technologies ,System identification ,Computational intelligence ,02 engineering and technology ,010501 environmental sciences ,Nonlinear control ,Optimal control ,01 natural sciences ,Industrial engineering ,Nonlinear system ,Maximum principle ,Control system ,021108 energy ,Adaptive learning ,lcsh:Environmental sciences ,0105 earth and related environmental sciences - Abstract
The paper describes the stages of paper production, considers the structure of a paper-making machine. Questions related to the proof and use of the Pontryagin’s maximum principle in the theory of optimal control are considered. Optimal paper web weight control system based on the Pontryagin’s maximum principle is presented. Adaptive learning methods for modeling nonlinear systems represent some of the latest advances in adaptive algorithms and machine learning techniques designed to model and identify nonlinear systems. Real-world problems always involve a certain degree of non-linearity, which makes linear models a suboptimal choice. This article may be of interest to research engineers and practitioners in the study and application of control systems using adaptive regulators. This book serves as an essential resource for researchers, graduate students and doctoral students working in the field of machine learning, signal processing, adaptive filtering, nonlinear control, system identification, cooperative systems, and computational intelligence. This book may also be of interest to the industry market and practitioners working with a wide range of nonlinear systems.
- Published
- 2021
3. Paper-based flexible metamaterial for microwave applications
- Author
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Runhua Fan, Yao Liu, Yaman Zhao, Zidong Zhang, Jiurong Liu, Wenjin Zhang, and Guohua Fan
- Subjects
Fabrication ,microwave ,Computer science ,Physics::Optics ,02 engineering and technology ,metamaterial ,010402 general chemistry ,01 natural sciences ,Microwave applications ,Negative refraction ,Electromagnetism ,General Materials Science ,paper ,Cloak ,Metamaterial ,Paper based ,Physics::Classical Physics ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Engineering physics ,lcsh:QC1-999 ,0104 chemical sciences ,metasurface ,Mechanics of Materials ,lcsh:Electrical engineering. Electronics. Nuclear engineering ,flexible ,0210 nano-technology ,lcsh:TK1-9971 ,lcsh:Physics ,Microwave - Abstract
Metamaterial has become a hotspot in many research fields, including electromagnetism, thermodynamics and mechanics, as it can offers additional design freedom for material to obtain novel properties. Especially for the electromagnetic devices, various interesting electromagnetic properties which cannot be found in nature materials can be realized, such as negative refraction, invisible cloak, etc. Herein, we provide an overview of paper-based metamaterial for microwave application. This work reviews the metamaterial realized on paper substrate, including the fabrication techniques, application fields, as well as the outlook on future directions of the paper-based metamaterial for the readership.
- Published
- 2021
4. Application of artificial neural network for design: a case of paper helicopter
- Author
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Tanaporn Klangpetch and Tossapol Kiatcharoenpol
- Subjects
Artificial neural network ,business.industry ,Computer science ,lcsh:TA1-2040 ,Artificial intelligence ,business ,lcsh:Engineering (General). Civil engineering (General) - Abstract
The design engineering is one of essential work in modern manufacturing environment. The optimization is principal technique to be used widely for searching the solution. However, primary process of optimization is to know the relation between design input parameters and target output. In this work, an artificial neural network (ANN) approach as an intelligent algorithm is proposed to construct the relation and also provides it in form of mathematic modeling. Even though the ANN modeling is so call a backblock due to difficulty to understand complicated equations, it is simply constructed by automate iteration process. A case of paper helicopter is used as an example of the application. The classical 2k Factorial design is used to provide an experiment plan to create training and testing data. 93 experiments are carried out. The architecture of ANN is set according to lowest Mean square error (MSE) of training and testing procedure. The result of 5-10-1 architecture has shown ability to accurately predict output, landing time, with MSE of 0.012. With such a highly quantitative accuracy of results, the developed model using the neural network approach can be used for finding the suitable input parameters to achieve a desired target output. In this case, the design of dimension (A) Depth of cut wing is 1.3 cm., (B) Length of wing is 12.9 cm., (C) Length of body is 9.0, (D) Width of body is 2.0 cm., and (E) Depth of cut body is 0 cm. yield the lowest area of a paper helicopter that can meet the target landing time, 2.85 + 5% second.
- Published
- 2018
5. Based on PCI Software Day Draw Satellite is Projective Like Making Technology Discussed in This Paper
- Author
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Rui Wang, Ming Zhao, Yongming Xu, and Xiaochun Xu
- Subjects
Software ,Computer science ,business.industry ,lcsh:TA1-2040 ,Conventional PCI ,Satellite ,Projective test ,business ,lcsh:Engineering (General). Civil engineering (General) ,Computer hardware - Abstract
This article introduces the use of PCI software production day draw satellite is projective like production process, analyzes the key technologies in the production, summarizes the Suggestions to improve the quality of results, strengthen quality control method is proposed, for the day draw satellite orthogonal projection as mass production work has carried on the beneficial exploration.
- Published
- 2018
6. Peculiarities of teaching translation of scientific and technical papers to engineering students
- Author
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Nikolay Kachalov, R.M. Fedorenko, and Dmitry L. Matukihn
- Subjects
Point (typography) ,Computer science ,научно-технические тексты ,Interpretation (philosophy) ,Teaching method ,обучение ,0211 other engineering and technologies ,Library science ,Technical translation ,студенты ,02 engineering and technology ,Indirect translation ,Translation (geometry) ,Linguistics ,Professional activity ,технические университеты ,020303 mechanical engineering & transports ,0203 mechanical engineering ,lcsh:TA1-2040 ,021105 building & construction ,переводы ,lcsh:Engineering (General). Civil engineering (General) ,технические переводы - Abstract
The article deals with the issues and methods of teaching translation and interpretation of scientific and technical papers to engineering students from a linguistic point of view. The authors describe the concept and special features of technical translation as a professional activity compared to different kinds of translation. The paper analyzes stylistic, lexical and phraseological, and grammatical peculiarities of scientific and technical papers. Moreover, the authors suggest the main techniques of translating scientific and technical papers such as direct and indirect translation methods.
- Published
- 2017
7. Summary of papers on technology
- Author
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Burkhard Plaum
- Subjects
Computer science ,Physics ,QC1-999 ,Library science - Abstract
The contributions on technology are summarized.
- Published
- 2017
8. The Journal of Space Weather and Space Climate – the first six years: status and evaluation of published papers and policies
- Author
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Jan Janssens, Agnès Henri, Jurgen Watermann, Anna Belehaki, Jean Lilensten, Institut de Planétologie et d'Astrophysique de Grenoble (IPAG), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Grenoble (OSUG ), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), National Observatory of Athens (NOA), LE STUDIUM (LE STUDIUM), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM)-Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de recherche pour le développement [IRD] : UR-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Solar-Terrestrial Centre of Excellence [Brussels] (STCE), EDP SCiences, Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de recherche pour le développement [IRD] : UR-Centre National de la Recherche Scientifique (CNRS), and Sciences, EDP
- Subjects
Atmospheric Science ,010504 meteorology & atmospheric sciences ,Meteorology ,Computer science ,lcsh:QC851-999 ,Space weather ,Space (commercial competition) ,01 natural sciences ,Physics::Geophysics ,Space and Planetary Science ,Physics::Space Physics ,0103 physical sciences ,Astrophysics::Solar and Stellar Astrophysics ,lcsh:Meteorology. Climatology ,Astrophysics::Earth and Planetary Astrophysics ,[PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph] ,[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] ,010303 astronomy & astrophysics ,ComputingMilieux_MISCELLANEOUS ,Physics::Atmospheric and Oceanic Physics ,0105 earth and related environmental sciences - Abstract
International audience; No abstract available
- Published
- 2017
9. Investigation into color designs of product packaging through visual evaluations using machine learning methods
- Author
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Yang Gao
- Subjects
Scheme (programming language) ,Computer science ,Manufactures ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Scale-invariant feature transform ,Machine learning ,computer.software_genre ,01 natural sciences ,Convolutional neural network ,TS1-2301 ,050105 experimental psychology ,Industrial and Manufacturing Engineering ,010309 optics ,Set (abstract data type) ,paper packaging ,0103 physical sciences ,T1-995 ,support vector machine ,0501 psychology and cognitive sciences ,Visual communication ,Technology (General) ,computer.programming_language ,visual communication ,business.industry ,05 social sciences ,color design ,Engineering (General). Civil engineering (General) ,Sample (graphics) ,Support vector machine ,Artificial intelligence ,TA1-2040 ,Packaging and labeling ,business ,computer - Abstract
For a commodity, in addition to its quality, its external package is also very essential. This paper briefly introduced the intelligent support vector machine (SVM) algorithm for color design of paper packaging. The features were extracted from photos of packages using scale-invariant feature transform (SIFT), and the intelligent algorithm was trained and tested using photos of paper packaging for ceramic products collected at the ceramic crafts market as a sample set. Two paper package schemes designed in this study were used for further test. The SVM algorithm was compared with the back-propagation (BP) algorithm and the convolutional neural network (CNN) algorithm. The results showed that the three intelligent algorithms could evaluate the color design of paper packages, but the SVM algorithm was more accurate than the BP and CNN algorithms in evaluating the imagery of color design, both for the samples collected in the craft market and for the paper packaging scheme designed in this paper.
- Published
- 2021
10. Skid adjuster for humps
- Author
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Alexey Demyanov, Alexander Rybak, and Alexander Demyanov
- Subjects
lcsh:GE1-350 ,Mean time between failures ,Computer science ,02 engineering and technology ,Paper based ,021001 nanoscience & nanotechnology ,Durability ,Automotive engineering ,Marshalling ,Braking distance ,020303 mechanical engineering & transports ,0203 mechanical engineering ,Skid (automobile) ,Service life ,Brake ,0210 nano-technology ,lcsh:Environmental sciences - Abstract
The paper based on the analysis of the working conditions of railway transport shows that, ceteris paribus, an increase in actual durability and mean time before failure of rolling stock units is obtained through maintenance of wheelsets, especially during logistic processes on nonmechanized humps. One of the main causes for the service life decrease of wheelsets is brake damage. To eliminate such brake damage on highways, on-board braking dis-tance regulators mounted on the locomotive are used. In the hump yards, using such systems is not possible, since under marshalling, cars are detached from the locomotive. In this regard, an industrial challenge turns up to design a similar in purpose braking distance regulator for humps through skidding. To solve this problem, we developed a method of controlling the speed of cars to be sorted, which complements the widely used technology of the shoe braking and avoids the formation of one-way sliders. The paper presents a skid adjuster, which excludes brake damage to the rolling stock wheels by the slides on the humps using the shoe braking techniques. The motion equation of the rolling stock equipped with a skid adjuster on the hump tracks is developed. In the result of this study, an equation of car motion in the system of “rolling stock Hughes regulator way” allowing to enter the working elements of Hughes controller to an existing and debugged algorithm of any slides with minimal change it.
- Published
- 2019
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