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485,621 results on '"Modeling and Simulation"'

201. Developing a Platform Using Petri Nets and GPenSIM for Simulation of Multiprocessor Scheduling Algorithms

Author

Daniel Osmundsen Dirdal, Danny Vo, Yuming Feng, and Reggie Davidrajuh

Subjects
multiprocessor scheduling, Petri nets, modular Petri nets, GPenSIM, modeling and simulation, multiprocessor scheduling algorithms, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
Abstract

Efficient multiprocessor scheduling is pivotal in optimizing the performance of parallel computing systems. This paper leverages the power of Petri nets and the tool GPenSIM to model and simulate a variety of multiprocessor scheduling algorithms (the basic algorithms such as first come first serve, shortest job first, and round robin, and more sophisticated schedulers like multi-level feedback queue and Linux’s completely fair scheduler). This paper presents the evaluation of three crucial performance metrics in multiprocessor scheduling (such as turnaround time, response time, and throughput) under various scheduling algorithms. However, the primary focus of the paper is to develop a robust simulation platform consisting of Petri Modules to facilitate the dynamic representation of concurrent processes, enabling us to explore the real-time interactions and dependencies in a multiprocessor environment; more advanced and newer schedulers can be tested with the simulation platform presented in this paper.

Published
2024
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202. Dynamic Simulation and Modeling of a Novel NeuRaiSya for Railway Monitoring System Using Petri Nets

Author

Bhai Nhuraisha I. Deplomo, Jocelyn F. Villaverde, and Arnold C. Paglinawan

Subjects
Petri nets, reachability graph, railway, modeling and simulation, GreatSPN, Chemical technology, TP1-1185
Abstract

This research introduces the NeuRaiSya (Neural Railway System Application), an innovative railway signaling system integrating deep learning for passenger analysis. The objectives of this research are to simulate the NeuRaiSya and evaluate its effectiveness using the GreatSPN tool (graphical editor for Petri nets). GreatSPN facilitates evaluations of system behavior, ensuring safety and efficiency. Five models were designed and simulated using the Petri nets model, including the Dynamics of Train Departure model, Train Operations with Passenger Counting model, Timestamp Data Collection model, Train Speed and Location model, and Train Related-Issues model. Through simulations and modeling using Petri nets, the study demonstrates the feasibility of the proposed NeuRaiSya system. The results highlight its potential in enhancing railway operations, ensuring passenger safety, and maintaining service quality amidst the evolving railway landscape in the Philippines.

Published
2024
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204. Task Offloading for UAV-Assisted of Collaborative Mobile Edge Computing Network Based on Deep Reinforcement Learning

Author

Zhou, Yana, Zhang, Guanglin, Ceccarelli, Marco, Series Editor, Agrawal, Sunil K., Advisory Editor, Corves, Burkhard, Advisory Editor, Glazunov, Victor, Advisory Editor, Hernández, Alfonso, Advisory Editor, Huang, Tian, Advisory Editor, Jauregui Correa, Juan Carlos, Advisory Editor, Takeda, Yukio, Advisory Editor, Carbone, Giuseppe, editor, Laribi, Med Amine, editor, and Jiang, Zhiyu, editor

Published
2023
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206. Simulation of Melting Process for Solar Energy Storage in form of Latent Heat of Material

Author

Verma, Amritanshu, Singh, Rajeev Kumar, Tyagi, R. K., Sikarwar, Basant Singh, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Haddar, Mohamed, Editorial Board Member, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Shukla, Anoop Kumar, editor, Sharma, Bhupendra Prakash, editor, Arabkoohsar, Ahmad, editor, and Kumar, Pradeep, editor

Published
2023
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207. Simulation of Timing Attacks and Challenges for Early Side-Channel Security Analysis

Author

Schoppmeier, Marcel, Herber, Paula, Rannenberg, Kai, Editor-in-Chief, Soares Barbosa, Luís, Editorial Board Member, Goedicke, Michael, Editorial Board Member, Tatnall, Arthur, Editorial Board Member, Neuhold, Erich J., Editorial Board Member, Stiller, Burkhard, Editorial Board Member, Stettner, Lukasz, Editorial Board Member, Pries-Heje, Jan, Editorial Board Member, Kreps, David, Editorial Board Member, Rettberg, Achim, Editorial Board Member, Furnell, Steven, Editorial Board Member, Mercier-Laurent, Eunika, Editorial Board Member, Winckler, Marco, Editorial Board Member, Malaka, Rainer, Editorial Board Member, Henkler, Stefan, editor, Kreutz, Márcio, editor, Wehrmeister, Marco A., editor, and Götz, Marcelo, editor

Published
2023
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210. Design of Unmanned Swarm Intelligent Operation Simulation System

Author

Zhang, Lei, Yuan, Ping, Mo, Shifeng, Peng, Qiang, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Fu, Wenxing, editor, Gu, Mancang, editor, and Niu, Yifeng, editor

Published
2023
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215. Modeling and Simulation of Control Systems for Brushless DC Motor Based on Hall Sensor

Author

Xie, Jiaxuan, Zhang, Shaomin, Yao, Zhiying, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Yan, Liang, editor, and Deng, Yimin, editor

Published
2023
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219. Enterprise Modeling and Simulation

Author

Haidar, Hezam, Daclin, Nicolas, Zacharewicz, Gregory, Doumeingts, Guy, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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220. Simulation Games

Author

Santos, Rodrigo Pereira dos, Clua, Esteban Walter Gonzalez, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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221. Reliability and Quality Assurance of M&S

Author

Ören, Tuncer, Graciano Neto, Valdemar Vicente, Davis, Paul K., Zeigler, Bernard P., Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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222. Ethics

Author

Formanek, Nico, Durán, Juan Manuel, Davis, Paul K., Tolk, Andreas, Ören, Tuncer, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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223. Infrastructure

Author

Loper, Margaret L., Ören, Tuncer, Gomes, Cláudio, Graciano Neto, Valdemar Vicente, Page, Ernest H., Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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224. Simulation as Experimentation

Author

Ören, Tuncer, Davis, Paul K., Goldstein, Rhys, Khan, Azam, Capocchi, Laurent, Hamri, Maâmar El-Amine, Mustafee, Navonil, Harper, Alison L., Hou, Baocun, Li, Bo Hu, Liu, Yang, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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225. Simulation as Experience to Enhance Three Types of Skills

Author

Ören, Tuncer, Durak, Umut, Page, Ernest H., Tolk, Andreas, Diallo, Saikou Y., Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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226. M&S Bok Core Areas and the Big Picture

Author

Ören, Tuncer, Kant, Umang, Sing, Mayank, Fishwick, Paul, Traoré, Mamadou Kaba, Zhang, Lin, Laili, Yuanjun, Zeigler, Bernard P., Tolk, Andreas, Zacharewicz, Gregory, Obaidat, Mohammad S., Sadoun, Balqies, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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227. Preliminary

Author

Ören, Tuncer, Zeigler, Bernard P., Pawletta, Thorsten, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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228. History of Simulation

Author

Zeigler, Bernard P., Nicolau de França, Breno Bernard, Graciano Neto, Valdemar Vicente, Hill, Raymond R., Champagne, Lance E., Ören, Tuncer, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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229. Trends, Desirable Features, and Challenges

Author

Li, Bo Hu, Fan, Wenhui, Zhang, Lin, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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230. Philosophy and Modeling and Simulation

Author

Tolk, Andreas, Page, Ernest H., Graciano Neto, Valdemar Vicente, Weirich, Paul, Formanek, Nico, Durán, Juan Manuel, Santucci, Jean François, Mittal, Saurabh, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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231. Core Research Areas

Author

Fishwick, Paul, Diallo, Saikou Y., Durak, Umut, Hou, Baocun, Li, Bo Hu, Su, Chunhui, Wang, Yanguang, Zhang, Lin, Xie, Xu, Zhou, Longfei, Zeigler, Bernard P., Pawletta, Thorsten, Folkerts, Hendrik, Mittal, Saurabh, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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232. Supporting Social Science and Management Areas

Author

Davis, Paul K., Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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233. Supporting Engineering Areas

Author

D’Ambrogio, Andrea, Yang, Chen, Sarjoughian, Hessam S., Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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234. Supporting Computer Domains

Author

Santucci, Jean François, Capocchi, Laurent, Ören, Tuncer, Mittal, Saurabh, Li, Bo Hu, Zhang, Lin, Lin, Ting Yu, Laili, Yuanjun, Szabo, Claudia, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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235. Supporting Science Areas

Author

Zeigler, Bernard P., Wach, Paul, Capocchi, Laurent, Weirich, Paul, Obaidat, Mohammad S., Sadoun, Balqies, Szabo, Claudia, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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236. Maturity and Accreditation

Author

Ören, Tuncer, Loper, Margaret L., Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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237. Synergies of Soft Computing and M&S

Author

Santucci, Jean François, Capocchi, Laurent, Ören, Tuncer, Szabo, Claudia, Graciano Neto, Valdemar Vicente, Tolk, Andreas, Series Editor, Crosbie, Roy E., Advisory Editor, Jakeman, Tony, Advisory Editor, Lehmann, Axel, Advisory Editor, Robinson, Stewart, Advisory Editor, Zeigler, Bernard P., Advisory Editor, and Ören, Tuncer, editor

Published
2023
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238. Practical Rules for the Stability Analysis of Flight Control Electrically Actuation System

Author

Cui, Kunxu, Fu, Jian, Hu, Baoyan, Fu, Yongling, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Lee, Sangchul, editor, Han, Cheolheui, editor, Choi, Jeong-Yeol, editor, Kim, Seungkeun, editor, and Kim, Jeong Ho, editor

Published
2023
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239. Flow Rate Optimization of a Parabolic Trough Solar Collector Using Multi-objective Genetic Algorithm

Author

Goel, Anubhav, Verma, Om Prakash, Manik, Gaurav, Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Manik, Gaurav, editor, Kalia, Susheel, editor, Verma, Om Prakash, editor, and Sharma, Tarun K., editor

Published
2023
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240. An Ontology Based Single Source of Truth (SSOT) Construction Approach for Aircraft Modeling and Simulation

Author

Zhang, Yuchen, Chang, Chuangye, Wang, Weijia, Xiao, Gang, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Lee, Sangchul, editor, Han, Cheolheui, editor, Choi, Jeong-Yeol, editor, Kim, Seungkeun, editor, and Kim, Jeong Ho, editor

Published
2023
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241. Model-Based Automated Testing Method for Airborne System

Author

Zhu, Shaofan, Xing, Peipei, Wang, Hao, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Möller, Sebastian, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Jing, Zhongliang, editor, and Strelets, Dmitry, editor

Published
2023
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242. Comparison of the effect and efficiency of two impact modification approaches in polypropylene

Author

Milán Ferdinánd, Róbert Várdai, Thomas Lummerstorfer, Claudia Pretschuh, Markus Gahleitner, János Móczó, and Béla Pukánszky

Subjects
polymer composites, mechanical properties, modeling and simulation, industrial applications, Materials of engineering and construction. Mechanics of materials, TA401-492, Chemical technology, TP1-1185
Abstract

Polypropylene (PP) hybrid composites were prepared with talc, a reinforcing filler, and an additional impact modifier. Impact resistance was improved by the use of a traditional elastomer and by the new approach of adding a synthetic polymer fiber, poly(vinyl alcohol) (PVA), in this case. The results showed that the use of PVA is more efficient than that of the elastomer. The latter decreases stiffness considerably, from the 3.5 GPa value of the PP/talc composite to around 1.5 GPa, it does not carry practically any load, and even its impact modification efficiency is somewhat smaller than that of the PVA fibers. On the other hand, PVA increases stiffness to some extent, up to 5 GPa, tensile strength considerably, especially in the presence of a coupling agent, and the large impact resistance of 20 kJ/m2 can be achieved with it at moderate fiber contents. The positive property profile achieved is the result of the local deformation mechanisms occurring in the PP/talc/PVA composites. Properties can be further adjusted to purpose by the application of a functionalized PP coupling agent.

Published
2023
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243. Application of polydimethylsiloxane (PDMS) as a flexible substrate for wireless body and local area network antenna with CSRR integration

Author

Praveen Kumar Sharma and Jae-Young Chung

Subjects
modeling and simulation, material testing, flexible antenna, adhesion, Materials of engineering and construction. Mechanics of materials, TA401-492, Chemical technology, TP1-1185
Abstract

This research illustrates the application of PDMS (polydimethylsiloxane), a silicon-based polymer with loss tangent (tan δεr) and dielectric constant (εr) values of 0.02 and 2.65, as a flexible substrate for antenna (PDMS substrate based flexible antenna – PSFA). In this paper, two flexible antennas having a size of 50.2×40.1×1 mm are presented for wireless body and local area networks. A split ring resonator (CSRR) structure with circular geometry is integrated on the patch in the second proposed antenna as compared to the first antenna with the same dimensions. As a result, this antenna has multiband notched frequency characteristics at 5.12, 5.80, and 6.66 GHz, respectively, with improved performance. It also helped to reduce SAR and backward radiation. Both of the proposed antennas behave well and exhibit significant concordance between simulation and measurement findings when tested in various operational situations, including wet and conformal conditions and demonstrate the suitability of PDMS as a flexible substrate for antenna applications.

Published
2023
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244. Experimental and numerical analysis of the effects of thermal degradation on carbon monoxide oxidation characteristics of a three-way catalyst

Author

Sota Aoyama, Yunosuke Kubo, Ratnak Sok, and Jin Kusaka

Subjects
Gasoline engines, Three-way catalyst, Catalyst aging, Thermal degradation, Emissions control, Modeling and simulation, Science (General), Q1-390, Social sciences (General), H1-99
Abstract

This work investigates oxygen-storage capacity (OSC) changes during thermal degradation in modern three-way catalysts. Two experiments are performed using catalysts with different degradation degrees to evaluate OSC and reaction rates. The CO2 production test, where CO and O2 are supplied at a constant temperature, shows decreased CO2 production with more degraded catalysts and reduced purification. The CO2 production test is conducted using transient temperature increases, showing that the maximum CO2 production temperature increases with catalyst degradation. The results reveal an increase in activation energy in the oxygen desorption reaction caused by thermal degradation progresses and a decrease in OSC, resulting in temperature increases in the oxygen storage reaction. In the surface reaction and mass transport model considering the 30 elementary reactions, the predicted results are well-validated for CO2 production, enabling good oxygen storage predictions based on actual data. These results can be used to predict OSC by formulating the changes in active site density and activation energy due to degradation.

Published
2024
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246. 基于矢量控制的铁路门式起重机 变频调速系统建模仿真.

Author

刘睿, 周威, 曹鹏, and 定斌

Subjects
GANTRY cranes, VECTOR control, RAILROADS
Abstract

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023

247. Reassessing the need for carbon dioxide removal: moral implications of alternative climate target pathways

Author

Lieske Voget-Kleschin, Christian Baatz, Clare Heyward, Detlef Van Vuuren, and Nadine Mengis

Subjects
adaptation and mitigation, human behavior, modeling and simulation, policies, politics and governance, social value, Environmental sciences, GE1-350
Abstract

Abstract Non-technical summary Scenarios compatible with the Paris agreement's temperature goal of 1.5 °C involve carbon dioxide removal measures – measures that actively remove CO2 from the atmosphere – on a massive scale. Such large-scale implementations raise significant ethical problems. Van Vuuren et al. (2018), as well as the current IPCC scenarios, show that reduction in energy and or food demand could reduce the need for such activities. There is some reluctance to discuss such societal changes. However, we argue that policy measures enabling societal changes are not necessarily ethically problematic. Therefore, they should be discussed alongside techno-optimistic approaches in any kind of discussions about how to respond to climate change. Technical summary The 1.5 °C goal has given impetus to carbon dioxide removal (CDR) measures, such as bioenergy combined with carbon capture and storage, or afforestation. However, land-based CDR options compete with food production and biodiversity protection. Van Vuuren et al. (2018) looked at alternative pathways including lifestyle changes, low-population projections, or non-CO2 greenhouse gas mitigation, to reach the 1.5 °C temperature objective. Underlined by the recently published IPCC AR6 WGIII report, they show that demand-side management measures are likely to reduce the need for CDR. Yet, policy measures entailed in these scenarios could be associated with ethical problems themselves. In this paper, we therefore investigate ethical implications of four alternative pathways as proposed by Van Vuuren et al. (2018). We find that emission reduction options such as lifestyle changes and reducing population, which are typically perceived as ethically problematic, might be less so on further inspection. In contrast, options associated with less societal transformation and more techno-optimistic approaches turn out to be in need of further scrutiny. The vast majority of emission reduction options considered are not intrinsically ethically problematic; rather everything rests on the precise implementation. Explicitly addressing ethical considerations when developing, advancing, and using integrated assessment scenarios could reignite debates about previously overlooked topics and thereby support necessary societal discourse. Social media summary Policy measures enabling societal changes are not necessarily as ethically problematic as commonly presumed and reduce the need for large-scale CDR.

Published
2024
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248. Joint resource optimization and flexible QoS provision using hybrid optical core node architecture

Author

Yassine Khlifi and Fahad A. Al-Zahrani

Subjects
AON, Lightpath deflection, Fiber delay line, Modeling and simulation, Dynamic resource optimization, Flexible QoS provision, Science (General), Q1-390, Social sciences (General), H1-99
Abstract

All-optical networks (AON) provide large bandwidth, high-speed switching, and quality of service (QoS). However, the emergence of recent applications generating flexible traffic demands affects AON resource utilization and QoS management. These concerns are handled by AON using core nodes with large wavelength converters (WC) and fiber delay line (FDL) spaces, resulting in a high cost of implementation and operation. This paper proposes a hybrid core node architecture, upgrading existing nodes with limited effective modification to minimize physical topology costs. This hybrid architecture increases WC and FDL availability and reduces wavelength utilization according to traffic behavior. These new node functions are enabled using an advanced algorithm integrating a novel cost formulation merging WC and FDL with lightpath deflection (LD). This algorithm activates resource availabilities using a flexible QoS scheme considering the required and real-time traffic loss and blocking delay. The experimental results indicate that the proposed approach optimizes AON resources while guaranteeing required traffic demands compared to the existing techniques.

Published
2024
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249. Hybridizing Technology Management and Knowledge Management to Spur Innovation: A System Dynamics Approach

Author

Reddy MRS Suryanarayana, Muddangala Naresh Babu, Gundraju Yamuna, Thaya Madhavi, Cristina Claudia Bizon, Nicu Bizon, and Phatiphat Thounthong

Subjects
innovation, furniture manufacture, knowledge management, technology management, modeling and simulation, information conversion, Business, HF5001-6182, Economics as a science, HB71-74
Abstract

The purpose of this research is to identify the drivers of innovativeness in a furniture manufacturing company. The scenario is the business environment where the hybridization of Technology Management (TM) and Knowledge Management (KM) is operative to promote innovation. The elements of the Technology Acceptance Model (TAM) and Socialization-Externalization-Internalization-Externalization (SECI) Model of KM have been modeled and used for simulation for the identification of the role played by the factors influencing the furniture design information conversion rate. The research follows the case study method to research as it draws data from a single company. Data from a multinational furniture manufacturing company that has over 10,000 products and operates in 24 countries have been used for simulation purposes. Results have shown that among the five factors that influence information conversion rate, the company should focus on correction efficiency and calculation efficiency enhancement if the aim is to maximize product and process innovations; and enhance contextualization efficiency if the priority is immediate results of innovativeness improvement. The results have also shown that about 615 innovative products and processes can be produced in six months by improving the correction efficiency to 80%. The theoretical implication of the study is in the form of a model which can be used by innovative companies to identify the critical factors that influence innovativeness, and the practical implications are in the form of suggestions to the managers of the furniture manufacturing company to enhance their innovativeness so as to gain competitive advantage in business.

Published
2023
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250. Water desalination using PSO-ANN techniques: A critical review

Author

Rajesh Mahadeva, Mahendra Kumar, Vishu Gupta, Gaurav Manik, Vaibhav Gupta, Janaka Alawatugoda, Harshit Manik, Shashikant P. Patole, and Vinay Gupta

Subjects
Particle swarm optimization (PSO), Water desalination, Artificial neural network (ANN), Modeling and simulation, Water treatment, Chemical engineering, TP155-156, Information technology, T58.5-58.64
Abstract

Water is a natural and essential resource for humans, animals, and plants to persist. However, only ⁓2.5 % of the freshwater resources are available, while the remaining ⁓97.5 % is saline water, which is unsuitable for humanity. According to the WHO, water scarcity will worsen by 2050. As a result, numerous researchers, scientists, and engineers are working in this field to improve water resources with advanced treatment technologies. Aside from the multiple water resources, desalination is critical in converting saline water to fresh water. In line with a recent update from the International Desalination Association (IDA, Reuse Handbook 2022–23), approximately ⁓22,757 desalination plants are operating worldwide, providing ⁓107.95 million cubic meters of freshwater per day (m3/day). Furthermore, in this digital age, artificial intelligence (AI) techniques, such as gray wolf optimization (GWO), sine cosine algorithm (SCA), artificial neural networks (ANN), multi-verse optimizer (MVO), fuzzy logic systems (FLS), moth flame optimizer (MFO), particle swarm optimization (PSO), artificial hummingbird algorithm (AHA) and genetic algorithms (GA), are playing a vital role and capable of deep analysis of real-time desalination plant for saving time, energy, human efforts, and money. This study focuses on the critical review and various aspects of current-age PSO-ANN techniques for desalination plants. In this regard, recent datasets of the Web of Science (WoS), provided by Clarivate Analytics, state that about >54,856 records (1965–2023) of desalination and around > 180 records (2008–2023) of PSO-ANN techniques are available globally. These records involve research articles, reviews, proceedings, letters, books, chapters, and editorial materials. Finally, this review article is specific and analyzes the various perspectives of PSO-ANN techniques in the water desalination process, promoting plant engineers and researchers to improve plant performance with minimum effort and time.

Published
2023
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