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23rd International Symposium on Communications and Information Technologies, ISCIT 2024

作者： Kodaka, Akira Leelawat, Natt Kohtake, Naohiko Graduate School of System Design and Management Keio University Kanagawa Japan Chulalongkorn University Disaster and Risk Management Information Systems Research Unit Bangkok Thailand Chulalongkorn University Faculty of Engineering Department of Industrial Engineering Bangkok Thailand Graduate School of System Design and Management Keio University Yokohama Japan

ISBN: (纸本)9798350353952

One significant element brought about by the Busi-ness Continuity management System (BCMS) is the operation and maintenance of processes, capabilities, and response struc-tures that allow an organization to overcome interruptions. The outbreak of COVID-19 necessitated a forced change in this system structure. In this study, Rojana Industrial Park in Phra N akhon Si Ayutthaya Province, Thailand was chosen for a study site where the authors have been conducting ongoing research, to understand changes in industrial park activities affected by the pandemic. Wavelet analysis was employed to capture the time series change patterns of atmospheric composition. This approach aims to identify the altered realities of how BCMS adapts to rapid situational changes from a new perspective which is air quality. Comparing the concentration changes of NO2 and PM2.5 between pre-pandemic 2019 and post-pandemic 2021 onward, no significant changes were observed in the relatively short-term industrial park activities ranging from a few days to a week;low coherence in high-frequent change of air quality. In contrast, significant changes were confirmed in the long-term concentration change patterns over 16 days or more;high coherence in low-frequency. This suggests that industrial park activities, including production activities and the movement of people and goods related to these activities, may have changed before and after the pandemic. © 2024 IEEE.

关键词： air quality business continuity management system industrial zone wavelet analysis wavelet coherence

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Rare earth(Gd,La) co-doped ZnO nanoflowers for direct sunlight driven photocatalytic activity

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Journal of Rare Earths 2023年第1期41卷 77-84页

作者： Baskaran Palanivel Romulo R.Macadangdang Jr Md Shahadat Hossain Fahad A.Alharthi Mohanraj Kumar Jih-Hsing Chang Sreedevi Gedi Department of Physics Kings Engineering CollegeSriperumbudurKancheepuram602117TamilnaduIndia Department of Medical Technology Institute of Arts and SciencesFar Eastern UniversityManilaPhilippines Department of Innovation Systems Engineering Graduate School of EngineeringUtsunomiya UniversityYoto 7-1-2Utsunomiya321-8585Japan Chemistry Department College of ScienceKing Saud UniversityRiyadh1145Saudi Arabia Department of Environmental Engineering and Management Chaoyang University of Technology168Jifeng E.Rd.Wufeng DistrictTaichung41349TaiwanChina School of Chemical Engineering Yeungnam UniversityGyeongsan38541Republic of Korea

In this work Gd/La@ZnO nanoflower photocatalyst was successfully synthesized by a co-precipitation method and applied for rhodamine B(Rh B) and tetracycline(TCN) degradation under direct sunlight *** doping of rare earth elements extends the optical absorption wavelength of ZnO from UV region(390 nm) to visible-light region(401 nm).In addition,the co-doped ZnO nanoflower exhibits a lower charge recombination efficiency which was confirmed by photoluminescence emission ***,the co-doped ZnO nanoflower exhibits the maximum degradation efficiency of 91% for Rh B and 74% for TCN under sunlight *** calculated synergistic index of co-doped ZnO is higher than that of the pure *** radicals’ production was confirmed by terephthalic acid(TA) and nitro-blue tetrazolium(NBT) *** holes and hydroxyl(·OH) radicals play the major role in degradation reaction and it was confirmed by scavenger’s ***,the recycling test confirms the stability of the photocatalyst.

关键词： Gd La ZnO Nanoflower Photocatalyst Sunlight

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OPTIMIZING HYPERPARAMETERS OF AN ARTIFICIAL NEURAL NETWORK MODEL FOR TRAFFIC INCIDENT DETECTION 50

OPTIMIZING HYPERPARAMETERS OF AN ARTIFICIAL NEURAL NETWORK M...

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50th International Conference on Computers and Industrial engineering: Sustainable Digital Transformation, CIE 2023

作者： Elsahly, O. Abdelfatah, A. Engineering Systems Management PhD Program American University of Sharjah Sharjah United Arab Emirates Department of Civil Engineering American University of Sharjah Sharjah United Arab Emirates

ISBN: (纸本)9781713886952

This paper discusses the optimization of hyperparameters of the Multilayer Feedforward (MLF) Artificial Neural Network (ANN), for Automatic Incident Detection (AID) within freeway systems. The MLF model was developed and tested using simulated data generated from VISSIM traffic simulation software. The optimized hyperparameters include the number of hidden layers, the size of hidden layers, the learning rate, momentum, error epsilon, and training cycles. To reduce computational time, a stepwise approach was adopted to optimize these hyperparameters. The model's performance was evaluated based on the Fscore, which is the harmonic mean of the recall and precision metrics. This evaluation metric was used because the AID is an imbalanced binary classification problem, where normal instances are the majority class and incident instances are the minority class. The results showed that optimizing the hyperparameters of the MLF model resulted in a 0.79% improvement in the F-score of the model and a 0.32% improvement in the overall accuracy of the model. The near-optimal hyperparameters for the MLF model were determined to be 1 hidden layer with 35 neurons, a learning rate of 0.015, momentum of 0.9, an error epsilon of 1.00E-10, and 1000 training cycles. The study provides insights into optimizing the hyperparameters of ANNs for AID applications in traffic management systems, which can help improve the performance of such systems. The optimized model can be utilized by Traffic management Centres (TMCs) to detect incidents accurately and in a timely manner, thereby reducing the negative impacts of traffic incidents and ensuring safe and efficient travel for drivers. © 2023 Computers and Industrial engineering. All rights reserved.

关键词： Multilayer neural networks

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Inconsistent Interpretations of an "-ility" in Practice: A Survey of Affordability Definitions within NASA MSFC

Inconsistent Interpretations of an "-ility" in Practice: A S...

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AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2025

作者： White, Christopher Eaton, Casey Yeazitzis, Taylor Perner, David Falcon, Amelia Mesmer, Bryan Weger, Kristin Thomas, L. Dale Department of Industrial and Systems Engineering and Engineering Management The University of Alabama in Huntsville HuntsvilleAL35899 United States Department of Psychology The University of Alabama in Huntsville HuntsvilleAL35899 United States

ISBN: (数字)9781624107238

ISBN: (纸本)9781624107238

systems engineering often employs "-ilities", such as affordability, to represent various aspects of a system. While these "-ilities" are widely used, exact definitions for the terms can vary between individuals. While most definitions of affordability include some cost notion, only a subset balance cost against a benefit. Additionally, some definitions treat affordability as a binary constraint, a system either is affordable or it is not. Others define it in more continuous terms which could be treated as an objective to be maximized. While multiple definitions can be readily observed from different sources, the degree to which definitions for a concept such as affordability differs within a single organization has not been thoroughly studied. This paper presents results from a survey completed by 172 employees of NASA Marshall Space Flight Center. Definitions of affordability from each participant are categorized ac-cording to how cost and benefit notions are used in the definition. Eight different categories of definitions were observed;however, 86 of the 172 definitions were categorized as involving a cost constraint with no clear benefit component. Due to the variety of definitions of affordability observed, practitioners should be cautious about assuming what stakeholders and fellow decision makers mean when using the term affordability. The use of affordability definitions categorized as involving only a cost constraint may result in the elimination of alternatives in a design space, rather than driving decision makers to continuously improve affordability. © 2025, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： NASA

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Status of Industrial Complex Activity Explained by Air Quality: Central Thailand 3

Status of Industrial Complex Activity Explained by Air Quali...

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3rd International Symposium on Instrumentation, Control, Artificial Intelligence, and Robotics, ICA-SYMP 2023

作者： Kodaka, Akira Leelawat, Natt Tang, Jing Onda, Yasushi Kohtake, Naohiko Graduate School of System Design and Management Keio University Kanagawa Japan Disaster and Risk Management Information Systems Research Unit Thailand Chulalongkorn University Department of Industrial Engineering Bangkok Thailand International School of Engineering Faculty of Engineering Disaster and Risk Management Information Systems Research Unit Chulalongkorn University Bangkok Thailand

ISBN: (纸本)9781665473538

Resilience in business continuity of an entire industrial complex has direct local socioeconomic impact;however, there are few methods available for objective assessment of its status. This study investigated whether change in air quality could explain the state of economic activity in an industrial complex. Concentrations of PM2.5 and NO2 above several industrial complexes in central Thailand were extracted using the Google Earth Engine™ and analyzed to examine their temporal characteristics in relation to decline in business activity caused by the COVID-19 pandemic. Results confirmed that industrial complexes whose activities were diminished by the pandemic showed concurrent trends of reduction in each pollutant, proving that the concentration of airborne substances has potential to reveal the level of activity of industrial complexes. To enhance the application potential of the proposed method, further study should investigate specific causal inferences by extracting the characteristics of other airborne substances, and consider industrial complexes that include a greater number of companies and major industries. © 2023 IEEE.

关键词： COVID-19

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AHP Decision-Making Approach for Solar Photovoltaic (PV) Modules End-Of-Life (EOL) Disposition Strategies 1

AHP Decision-Making Approach for Solar Photovoltaic (PV) Mod...

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1st Middle East and North Africa Solar Conference, MENA-SC 2023

作者： Alzahmi, Wadhah Ndiaye, Malick American University of Sharjah Sharjah Sharjah26666 United Arab Emirates American University of Sharjah Engineering Systems Management Program Department of Industrial Engineering United Arab Emirates

ISBN: (纸本)9781665491464

Increasing energy demands globally have accelerated the development of renewable technologies including solar photovoltaics (PV). However, this development has unavoidably led to the emergence of significant volumes PV waste considering 20-30 years life span before End of Life (EOL). The standard decision makers practices for PV EOL are disposal to the landfill, recycling, or reuse. Due to complexity of the decision environment, this study aims to analyze and rank solar PV disposition alternative using Analytic Hierarchy Process (AHP) based on five main criteria including environmental, economic, social, policy and legislation and technical. AHP Aggregating Individual Priorities (AIP) aggregation method was utilized to evaluate the overall perspective of all the study participant. In addition, individual stakeholder group decision was assessed individually to understand potential different EOL disposition perspective from different stakeholder group. The findings of the analysis shows that the overall ranking of the alternatives based on the main criteria is leaning toward recycling compared to other alternatives. However, there is a variation in the decision between individual stakeholder group. © 2023 IEEE.

关键词： Analytic hierarchy process

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Using Blockchain to Improve Buffer-Stock-Sharing and Combat Cheating Behaviors Under Virtual Pooling

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IEEE Transactions on engineering management 2024年 71卷 328-345页

作者： Choi, Tsan-Ming Chung, Sai-Ho Sun, Xuting Wen, Xin National Taiwan University Department and Graduate Institute of Business Administration College of Management Taipei City10617 Taiwan The Hong Kong Polytechnic University Department of Industrial and Systems Engineering Hong Kong Hong Kong Shanghai University SILC Business School Shanghai201899 China

Blockchain is a disruptive technology, which is crucial for business operations. In this article, we analytically explore how two manufacturers can achieve efficient buffer stock sharing using the blockchain technology (BCT). We first build an analytical basic model with a deterministic lead time for material replenishment and quantify the benefit of adopting a buffer stock sharing scheme. In the absence of BCT, we demonstrate the natural occurrence of a cheating problem. We analytically derive the overall value of blockchain technology (OVBCT) for the buffer stock sharing scheme and highlight the conditions under which it is increasing or decreasing in demand uncertainty. We also show how the buffer stock service level can be improved with the use of BCT. To show robustness of the analytical findings, several extended cases are explored. Novel buffer stock division rules are then generated under the proposed buffer stock sharing scheme, which makes the alliance profitable. In addition, an n-manufacturers alliance is further analytically explored. We find that the core findings from the basic model continue to hold in the extended models. Finally, we establish the conditions for achieving Pareto improvement with the use of BCT by considering the logistics services adopted. © 1988-2012 IEEE.

关键词： Supply chains

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Predictive Vehicle Control at Intersections with Look-Ahead Driving Approach

Predictive Vehicle Control at Intersections with Look-Ahead ...

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2025 SICE International Symposium on Control systems, SICE ISCS 2025

作者： Magzhan, Atykhan Hossain, Md Delowar Bakibillah, A.S.M. Kamal, Md Abdus Samad Yamada, Kou Graduate School of Science and Technology Gunma University Kiryu Japan Institute of Science Tokyo Department of Systems and Control Engineering Tokyo Japan

ISBN: (纸本)9784907764852

This paper presents a look-ahead vehicle control scheme for efficient traffic management at signalized intersections. The proposed scheme predicts future driving states with a look-ahead approach as an extended adaptive cruise control (ACC) model. It maintains car-following behavior similar to human driving while predicting future states of traffic flow to minimize intersection clearing time and aggressive braking independently, similar to model predictive control (MPC) approaches. In contrast to MPC models that are computationally demanding and have limited practical applications due to real-time constraints, the proposed scheme uses a modified Intelligent Driver Model (IDM) with predictive adjustments. The efficiency of the control scheme is evaluated through simulations with multiple vehicles in intersection traffic scenarios, focusing on maintaining safe time headway within a traffic flow and ensuring efficient flows with higher intersection throughput. Comparative results indicate improvements in intersection clearance, human-like vehicle headway management, and enhanced traffic flow performance. © 2025 The Society of Instrument and Control Engineers.

关键词： Adaptive cruise control

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Determining Factors Affecting Customer Loyalty and Satisfaction in Online Food Delivery Service during the COVID‐19 Pandemic: A UTAUT2 Approach

Determining Factors Affecting Customer Loyalty and Satisfact...

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2024 IEEE International Conference on Industrial engineering and engineering management, IEEM 2024

作者： Susanto, Krisna Chandra Prasetyo, Yogi Tri Cahigas, Maela Madel L. Nadlifatin, Reny Persada, Satria Fadil Ayuwati, Irene Dyah Department of Industrial Engineering and Management Yuan Ze University Taoyuan Taiwan International Bachelor Program in Engineering Yuan Ze University Taoyuan Taiwan School of Industrial Engineering and Engineering Management Mapúa University Manila Philippines Department of Information Systems Institut Teknologi Sepuluh Nopember Surabaya Indonesia Entrepreneurship Department Bina Nusantara University Jakarta Indonesia University of Surabaya Surabaya Indonesia

ISBN: (纸本)9798350386097

The Online food delivery services (OFDS) have been extensively utilized, especially in developing nations like Indonesia on new normal Covid-19 situation. The present research aimed to utilize the "Unified Theory of Acceptance and Use of Technology-2" (UTAUT2) in affecting the customer satisfaction and loyalty (CSL) in OFDS in Indonesia post-COVID-19 pandemic. The 253 data was taken to answer the 65 indicators. Structural equation modeling (SEM) indicates that hedonic motivation exerts the most significant influence on CSL, succeeded by price. This study unexpectedly found that usability factors, including performance expectation habit, did not influence customer happiness and CSL in OFDS. This research strongly provides a theoretical framework for OFDS practitioners, IT developers, and scholars. The present research can be modified and expanded to different nations to examine the determinants of customer CSL in OFDS. © 2024 IEEE.

关键词： Sales

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Sustainable management of wastewater supply chain: A literature review

Sustainable management of wastewater supply chain: A literat...

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2023 International Conference on Electrical, Computer, Communications and Mechatronics engineering, ICECCME 2023

作者： Ponce, Matías Espinoza, Andrea Vásquez, Óscar C. Industrial Engineering Department Santiago Chile University of Santiago of Chile Program for the Development of Sustainable Production Systems Industrial Engineering Department Santiago Chile

ISBN: (纸本)9798350322972

Water scarcity has led to the search for sustainable methods of wastewater management in recent years. This article presents a comprehensive analysis of wastewater management through a systematic literature review, examining thirty articles published between 2012 and 2022. The main contribution lies in the in-depth analysis conducted on the management wastewater supply chain, focusing on the dimensions of sustainability studied, how they are addressed in models, the types of decisions made, and the methodologies employed. This provides insight into how sustainability has been approached in wastewater management while highlighting areas for improvement and future research.A positive trend is observed in related research, indicating a growing interest in the topic of sustainable management of wastewater supply chains up to the year 2020. To assess sustainability, optimization, and case studies were predominantly utilized, with evolutionary algorithms commonly employed in optimizations, complemented by uncertainty *** suggestions for future research, it is recommended to include political and technological aspects in the analysis of sustainability. Additionally, integrating methodologies with a greater capacity to incorporate multiple objective functions, along with a case study to illustrate their applicability, would be valuable. Addressing these outstanding issues could contribute to a better understanding of sustainable wastewater management and provide more effective solutions. © 2023 IEEE.

关键词： Sustainable development

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