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6th International Conference on Intelligent Computing and Optimization, ICO 2023

作者： Shanmugasundar, G. Pal, Subham Chohan, Jasgurpeet Singh Kalita, Kanak Department of Mechanical Engineering Sri Sairam Institute of Technology Chennai India Department of Aerospace Engineering and Applied Mechanics Indian Institute of Engineering Science and Technology Shibpur India Department of Mechanical Engineering and University Centre for Research and Development Chandigarh University Mohali India Department of Mechanical Engineering Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology Avadi India

ISBN: (纸本)9783031503290

A novel ensemble-based optimization technique is proposed for designing a robot manipulator variable stiffness joint. A multi-objective optimization is performed by considering the maximization of generated torque and the minimization of the weight of the joints. This investigation considers three design parameters (i.e., inner stator width, outer stator width, and magnet height) to maximize torque and reduce weight. Multi-objective ant lion optimization (MOALO) and multi-objective dragonfly algorithm (MOdA) optimization techniques are employed to generate Pareto fronts. These multiple Pareto fronts from the same algorithm are collated and condensed using non-dominated sorting (NdS) to reject the most dominant solutions. These new and improved Pareto fronts are called MOALO and MOdA ensembles. Next, the MOALO and MOdA ensemble Pareto front solutions are collated together, and NdS is performed again. The resulting Pareto front containing solutions of both MOALO and MOdA is referred to as the MOALO-MOdA ensemble. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Multiobjective optimization

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Pareto Optimization of Laminated Composite Plates with Non-dominated Sorting Whale Optimization Algorithm (NSWOA) Ensemble 6th

Pareto Optimization of Laminated Composite Plates with Non-d...

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6th International Conference on Intelligent Computing and Optimization, ICO 2023

作者： Shanmugasundar, G. Pal, Subham Chohan, Jasgurpeet Singh Kalita, Kanak Department of Mechanical Engineering Sri Sairam Institute of Technology Chennai India Department of Aerospace Engineering and Applied Mechanics Indian Institute of Engineering Science and Technology Shibpur India Department of Mechanical Engineering University Centre for Research & Development Chandigarh University Mohali India Department of Mechanical Engineering Vel Tech Rangarajan Dr Sagunthala R&D Institute of Science and Technology Avadi India

ISBN: (纸本)9783031501500

Plates are non-curve structural elements used in civil, aerospace and marine constructions. Optimization of these structures is important for its longevity and safe design. This study uses a novel non-dominated sorting whale optimization algorithm (NSWOA) ensemble technique to optimize the design of laminated composite plates. The objective of the study is to maximize the fundamental frequency and frequency separation. The orientations of the fiber in each layer are considered the design variables. This study considers a rectangular plate with a symmetric arrangement of lamina under simply supported boundary conditions. The results obtained through the implementation of the NSWOA ensemble technique are presented, and this will assist in future research. © 2023, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Laminating

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development of Low-Carbon Affordable Apartments in the Hot and Humid Climate of Indonesia: Construction of a Full-Scale Experimental House 5th

Development of Low-Carbon Affordable Apartments in the Hot a...

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5th International Conference on Building Energy and Environment, COBEE 2022

作者： Alfata, Muhammad Nur Fajri Trihamdhani, Andhang rakhmat Kubota, Tetsu Asawa, Takashi Directorate for Settlements and Housing Engineering Development Ministry of Public Works and Housing Jakarta Selatan Indonesia YKK AP R&D Center Indonesia Tangerang Indonesia Graduate School of Advanced Science and Engineering Hiroshima University Hiroshima Japan School of Environment and Society Tokyo Institute of Technology Meguro City Japan

ISBN: (纸本)9789811998218

A full-scale experimental house to develop comprehensive passive cooling techniques for affordable apartments in the hot and humid climate of Indonesia was constructed in the city of Tegal in 2020. It is a 2- to 3-storey apartment building with a pilotis on the ground floor, consisting of 12 units with a total floor area of approximately 2000 m2. This study explains the passive design concept of the experimental house, focusing on the ventilation strategies using a vertical void, and presents the results of a preliminary field measurement of indoor thermal environments. Major thermal parameters were measured under different ventilation conditions. The results showed that the structural cooling effect by the nocturnal ventilation was apparent, but it was difficult to achieve indoor thermal comfort during the peak hours by the nocturnal ventilation alone. This implies that further additional passive cooling techniques such as radiant floor cooling and evaporative cooling are necessary. Moreover, the effect of indoor wind speed on thermal comfort of the tropical occupants should be considered more in detail. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Ventilation

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HappyCruise - Integrated Information System of personalized information and security in the tourism industry. 13

HappyCruise - Integrated Information System of personalized ...

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13th International Conference on Information, Intelligence, Systems and Applications, IISA 2022

作者： Kotsopoulos, Konstantinos I. Pavlidis, George Viennas, Emmanouil Baratis, Evdoxios Giannopoulou, Georgia Papadopoulos, Alexandros Spilios, Manos Alexogianni, Paraskevi Sakkopoulos, Evangelos R&d Lab Omega Technology Patra Greece University of Patras Department of Computer Engineering and Informatics Rio Achaia26504 Greece Software Development Modus Sa Athens Greece Software Development Intraway Ltd Athens Greece University of Piraeus Department of Informatics Piraeus Greece

ISBN: (数字)9781665463904

ISBN: (纸本)9781665463904

HappyCruise project offers cruise passengers a comprehensive solution that provides personalized security and information to reduce the feeling of insecurity and highlight the competitive advantages of Cruise destinations, offering a more comprehensive visit experience based on their interests and the available time while enhancing the Branding of the city and the port. The creation of a robust, useful, and engaging traveler mobile application with essential features is proposed. It combines offering information about suggested points of interests and other activities in the limited time of a cruise passenger's visit, security through a simple and intuitive alert system which informs the Cruise Security through a web interface about the passenger's Id, the type of the danger and the geographical position of the passenger. The passenger can also receive notifications from the ship's staff regarding the cruise schedule, the remaining time of staying at the port and of any important security messages. The mobile application also integrates a series of motivation teasers including gamified notifications with suggestions based on the passengers' interest, nearby points of interests presented with augmented reality, guidance to destinations with augmented reality navigation arrows, suggested services and products in the port area. Additionally, a biometric passenger identification system utilizing face recognition technology is used providing a quick and reliable check-in that eliminates the need of submitting passport or boarding card many times. © 2022 IEEE.

关键词： Biometrics

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Accelerating deep Neural Networks with a Low-Cost Lossless Compression

Accelerating Deep Neural Networks with a Low-Cost Lossless C...

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International Conference on Electronics, Information and Communications (ICEIC)

作者： Seongwook Kim Gwangeun Byeon Seungeui Lee Youngseok Bae Seokin Hong Department of Electrical and Computer Engineering Sungkyunkwan University Suwon Korea Advanced R&D Center Hanwha Systems Co. Ltd. Emerging Science and Technology Directorate Agency for Defense Development

ISBN: (数字)9798331510756

ISBN: (纸本)9798331510763

Since deep learning inference involves a significant amount of computations, there have been a lot of efforts to accelerate the inference process by eliminating ineffectual compu-tations. As a solution to this problem, several sparsity-aware deep learning accelerators have been proposed. These accelerators perform the inference on compressed data (filters and feature maps) and dynamically remove the ineffectual multiplications with zero operands. For efficiently handling the compressed data on the accelerators, a simple and effective compression scheme, which encodes the whole data with its nonzero values and their positions, is necessary. However, prior approaches have several shortcomings, such as low compression efficiency and high complexity in compression and decompression hardware. This paper proposes a low-cost compression scheme that can be applied to sparsity-aware deep-learning accelerators. The compression scheme synergistically combines two low-cost compression schemes: Zero-Value Compression (ZVC) and Base-delta-Immediate Compression (BdI). Our experimental evaluation shows that the proposed compression scheme achieves an average compression ratio of 2.26, resulting in 2.33x performance improvement,

关键词： deep learning Filters Artificial neural networks Performance gain Complexity theory Hardware acceleration

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domain Wall Structure Model through the Thickness of Fe–Si Sheet Studied by X ray Topography

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ISIJ International 2025年第2期65卷 326-330页

作者： Kataoka, Takashi Kawamura, Yusuke Futagi, Toshiro Ushigami, Yoshiyuki Ibaraki College 866 Nakane Hitachinaka-City Ibaraki312-8508 Japan Steel Research Laboratories Technical Research & Development Bureau NIPPON STEEL CORPORATION 20-1 Shintomi Futtsu-City Chiba293-0011 Japan Physical Characterization Solutions Div. R&D Supporting Unit NIPPON STEEL TECHNOLOGY Co. Ltd. 20-1 Shintomi Futtsu-City Chiba293-0011 Japan NIPPON STEEL TECHNOLOGY Co. Ltd. 2-1 Tobihata-cho Tobata-ku Kitakyushu-City Fukuoka804-0001 Japan

Fe–Si sheet, which has {110} crystal orientation (Goss-FeSi), consists of Basic domain and Lancet-comb domain. Although the geometric structures of the Lancet-comb domain have been predicted by theoretical aspects, they have not been proved by experimental studies. In this paper, we study the Lancet-comb domain structures of a Fe–Si steel by a volume sensitive method, i.e., transparent X-ray topography (XrT). From the XrT results, we found the parallelogram structures, which is bulk structure of the Lancet-comb domain. The long side of the parallelogram forms about 55° angle to the rolling direction and the short side forms about 35° angle to the rolling direction. We assigned the long side of the parallelogram to {110} domain wall and the short side to {111} domain wall based on the geometric analysis. This Lancet-comb domain model well explains the behavior of the magnetic moments of Goss-FeSi. © 2025 The Iron and Steel Institute of Japan.

关键词： Silicon steel

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development Strategy and Countermeasures of China's CBM Industry under the Goal of “Carbon Peak and Neutrality”

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Journal of Earth Science 2023年第4期34卷 975-984页

作者： Fengyin Xu Xia Yan Fenglin Wang Xinyuan Ma Jian Yun Hongna Wang Borui Xu Shuangyuan Zhang delei Mao China United Coalbed Methane National Engineering Research Center Co. Ltd.Beijing 100095China Research Institute of Petroleum Exploration&Development PetroChina Coalbed Methane Co.Ltd.Beijing 100028China Research management department CNPC Research Institute of Safety and Environment Technology Co.Ltd.Beijing 102249China Exploration technical R&D Center CNPC Exploration Software Co.Ltd.Beijing 100080China

China’s coalbed methane(CBM) industry is in an extremely important “climbing period” and “strategic opportunity period”,which can be generally characterized by “three low and one small”:low degree of exploration and development,low adaptability of main technology,low return on investment and small development *** the “carbon peak and neutrality” background,the development status of CBM industry is systematically *** resources,technology,management problems and reasons are *** and countermeasures to accelerate the industrial development are put forward according to the factors such as efficient development of resources,major technical breakthrough,talent team training,policy formulation and implementation,return on investment and so *** existing problems are as follows:(a) The overall occurrence conditions in China are complicated and the development is difficult compared with the other countries.(b) The research precision accuracy of CBM resource conditions is not enough.(c) The adaptability of technology is poor.(d) The management mode is not *** view of these problems,this paper puts forward the “two steps” development strategy and the technical and management countermeasures of “five in one”.The corresponding “five in one” technology and management countermeasures are the formulation and implementation of relevant safeguard measures in accordance with the principle of collaborative innovation in five aspects:resources,technology,talents,policies and *** the above measures,the dream and grand blueprint of CBM industry shall be realized.

关键词： coalbed methane CBM industry carbon peak carbon neutrality development strate-gy countermeasures.

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Anomalous Sound detection, Extraction, and Localization for refrigerator Units Using a Microphone Array 48

Anomalous Sound Detection, Extraction, and Localization for ...

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48th Annual Conference of the IEEE Industrial Electronics Society, IECON 2022

作者： Nishikawa, Akihito Hattori, Kazuhiro Tanaka, Motomasa Muranami, Hiroaki Nishi, Hiroaki Keio University Graduate School of Science and Technology Yokohama Japan Mayekawa MFG. Co. Ltd. Research and Development Center R&d Division Tokyo Japan Keio University Faculty of Science and Technology Department of System Design Yokohama Japan

ISBN: (数字)9781665480253

ISBN: (纸本)9781665480253

Anomaly detection is one of the key applications of data utilization in smart factories, particularly in monitoring factory facilities. Early detection and resolution of anomalies, such as system failures, can lead to cost reduction and quality stabilization. One of the targets of abnormality detection applications in the industry section is a refrigerator unit used in food processing factories and warehouses. Anomalies in the early stages in refrigerator units appear in the operating sounds, which can enable their detection. In this study, we propose a method for detecting abnormal sound, extracting abnormal frequency components, and identifying the direction of the abnormal sound source. To identify the direction of the anomalous sound source, multi-channel sound recorded by a microphone array is used. To the best of our knowledge, no method has yet been proposed for anomaly sound detection using multi-channel acoustic data. In the proposed method, anomaly scores calculated in each channel of the microphone array are aggregated to determine whether the entire data is anomalous or not. Anomalous sounds were extracted from the anomaly data using a deep generative model. The extracted anomalous sounds were used to localize the sound source and the direction of the anomalous source was identified. The proposed method improved the precision of anomaly sound detection while maintaining the recall rate of a conservative comparison method. Using the proposed method, anomalous sounds were extracted from the anomaly data, and their arrival directions were identified. © 2022 IEEE.

关键词： Cost reduction

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Field Application of Slickline Fishing Well Intervention technology in Ultra-deep HTHP Gas reservoirs

Field Application of Slickline Fishing Well Intervention Tec...

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2022 SPE/ICoTA Well Intervention Conference and Exhibition, CTWI 2022

作者： Liu, Huifeng ding, Mingming Li, Cheng Ling, Zongfa Yuan, Zebo Liu, Qi Qin, Zhengli CNPC Engineering Technology R&D Company Limited China China National Oil & Gas Exploration & Development Company China PetroChina Tarim Oilfield Company China College of Petroleum Engineering China University of Petroleum Beijing China

ISBN: (纸本)9781613998496

Kelasu gas field in Tarim Basin is characterized by ultra-deep (6500-8000m), ultra-high temperature (160-19°C) and ultra-high reservoir pressure (110-136MPa). The wellhead pressure during production is also as high as 80-100MPa. rigless well intervention is always difficult to perform because of the high well control risks. Slickline testing, electric line testing and optical fiber monitoring have all been tried, but problems like breaking of slickline, loss of signal, falling of instruments into well, etc. were encountered. A slickline fishing technology has been used for bottom hole well surveillance in this area with many optimizations on the instruments. Grease injection sealing assisted by packing sealing is used to reduce friction of slickline and to guarantee well safety during operation;a choke tube stabilization device is invented to deal with the eccentric wearing of slickline and choke tube;self-supporting lever together with 8 anchor ropes are used to stabilize the blowout prevention tube assembly to withstand the high wind in the mountainous area;grease collection device is used to avoid the discharge of grease into the environment. The technology has been successfully used in more than 70 wells in Kelasu gas field. The interventions include production testing, pressure built up (PBU) testing and well interference test. The maximum setting depth of the manometer reaches 7189 m. The highest wellhead pressure during testing reaches 90 MPa. Longest pressure survey time comes up to 52 days. No surface or downhole problems have been encountered and all the required data have been acquired. The wells were not killed during the intervention so the reservoir is well protected. Well interference tests were conducted in Keshen 8 block using this technology. The results showed very good interwell connectivity and suggested that well spacing should be enlarged. The development program of this block was adjusted accordingly and it turned out that the expected produc

关键词： Surveys

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Experimental Analysis of Compression deformation at High-Temperatures and Numerical Simulation for BaTiO3 Sintered Compacts

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Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy 2025年 72卷 S277-S280页

作者： Tanaka, Hiroyuki Matsubara, Hideaki Yokota, Hideaki Iguchi, Toshihiro Takagi, Yuko Nomura, Hiroshi Terasaka, Sota Igimi, daisuke Technology HQ TDK Corporation 2-15-7 Higashi-Ohwada Ichikawa272-8588 Japan Graduate School of Environmental Studies Tohoku University 6-6-20 Aramaki Aza Aoba-ku Sendai980-8579 Japan Prior Art Development Dept Ceramics condenser BG TDK Corporation 570-2 Matsugashita Minamihatori Narita282-8558 Japan Materials R&D Lab Japan Fine Ceramics Center 2-4-1 Mutsuno Atsuta-ku Nagoya456-8587 Japan

Uni-axial compression tests were performed to derive yield stress equation, flow rules and coefficient of flow stress of BaTiO3 sintered compaction. These basic equations and their physical properties were introduced into the FEM. The drooping behavior of the thin-thickness specimen during the sintering was simulated and compared to the experimental drooping, where the specimens were composed of large or small average diameter BaTiO3, respectively. resulting simulation drooping quantitatively reproduces that experiment. This result suggests that experimentally derived yield stress equation, non-Newtonian viscoplastic flow rule σeq = FΕ0Ε0.8 and coefficient of flow stress about several to 1000 GPa s of sintered BaTiO3 compaction were numerically validated. ©2025 Japan Society of Powder and Powder Metallurgy.

关键词： Yield stress

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