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IEEE International Conference on Consumer Electronics-Taiwan (ICCE-TW)

作者： Ming-An Chung Chen-You Gao Department of Electronic Engineering Master Program in Smart Railway National Taipei University of Technology Taipei Taiwan Department of Mechanical and Electrical Engineering Master Program in Smart Railway National Taipei University of Technology Taipei Taiwan

ISBN: (数字)9798350386844

ISBN: (纸本)9798350386851

Rail surface defects and missing fasteners are significant topics in railway detection. However, the detection of images may be subject to noise due to the diversity of environmental conditions, leading to a reduction in accuracy. Therefore, the paper proposes a method based on a semantic segmentation network and image processing. First, to address the problem of data preprocessing, this article introduces a bilateral filter into the U-Net algorithm to reduce noise and improve the efficiency of extracting edge features. Second, locations of rail surface defects and missing fasteners were detected from the U-Net. Finally, the article compares with other literature. The proposed method's effectiveness is demonstrated through experimental results, with accuracy rates of 99.9% for rail surface defects and 98.1% for missing fasteners, respectively.

关键词： Rails Accuracy Image synthesis Semantic segmentation Noise Fasteners Inspection

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Experimental Study on Vibration Displacement for Coaxial Counter-Rotating Rotors 7

Experimental Study on Vibration Displacement for Coaxial Cou...

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7th International Conference on mechanical Manufacturing and Industrial engineering, MMIE 2024

作者： Sung, Chen-Yu Shieh, Tzong-Hann Ma, Yen-Huai Soong, Chyi-Yeou Yeh, Chun-Liang Huang, Yen-Er Ph.D. Program of Mechanical and Aeronautical Engineering Feng Chia University No.100 Wenhwa Rd. Seatwen Taichung40724 Taiwan Department of Aerospace and Systems Engineering Feng Chia University No.100 Wenhwa Rd. Seatwen Taichung40724 Taiwan Master's Program of Space Systems Engineering Feng Chia University No.100 Wenhwa Rd. Seatwen Taichung40724 Taiwan

ISBN: (数字)9781510683297

ISBN: (纸本)9781510683280

This paper uses the transmission mechanism of a coaxial counter-rotating rotorcraft equipped with blade designs of different airfoils. The blades are all made of aluminum alloy 6061T6. To study the deformation of the aluminum alloy blades of the rotorcraft when it hovers. It investigates the deformation and vibration displacement of the blade under the influence of aeroelasticity under the condition of fixed angle of attack and different rotation speeds. The airfoils used for study mainly consider the NACA0012 symmetrical airfoil and the other improved design Viper-X asymmetrical airfoil (A0) as test objects. The angle of attack used in the study is 10°, and the rotational speeds used are medium rotational speed ranges such as 400rpm, 450 rpm, 500 rpm, 550 rpm, and 600 rpm. A non-contact laser displacement sensor was used as the experimental measurement method for data measurement in this study. Finally, when the rotational speed exceeds 500rpm, the improved design of the asymmetric airfoil A0 is indeed more stable than the symmetrical airfoil NACA0012. © 2024 SPIE.

关键词： Aeroelasticity

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Experimental Study on Aerodynamic Effects of Different Blade Types with PIV-Method for Coaxial Counter-Rotating Rotors 7

Experimental Study on Aerodynamic Effects of Different Blade...

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7th International Conference on mechanical Manufacturing and Industrial engineering, MMIE 2024

作者： Sung, Chen-Yu Shieh, Tzong-Hann Ma, Yen-Huai Soong, Chyi-Yeou Yeh, Chun-Liang Yang, Fuh-Sen Ph.D. Program of Mechanical and Aeronautical Engineering Feng Chia University No.100 Wenhwa Rd. Seatwen Taichung40724 Taiwan Department of Aerospace and Systems Engineering Feng Chia University No.100 Wenhwa Rd. Seatwen Taichung40724 Taiwan Master's Program of Space Systems Engineering Feng Chia University No.100 Wenhwa Rd. Seatwen Taichung40724 Taiwan

ISBN: (数字)9781510683297

ISBN: (纸本)9781510683280

This paper is about the PIV experimental study on aerodynamics of a coaxial counter-rotating rotors aircraft. The main purpose is to observe and record the flow field distribution of the coaxial counter-rotating rotors when hovering, and to determine the rotor blade profile design for stable flight. The experimental method is to observe the flow field coupling effect of coaxial counter-rotating rotors with flow field visualization technology. This study uses the blade S-0 improved by the symmetrical airfoil NACA0012 and the blade AS-0 improved by the asymmetrical airfoil Viper-X to conduct flow field observation experiments. In order to survey the aerodynamic characteristics of blade configurations in the flow field under different flight conditions. This study also conducted experiments on conditions such as low and medium rotational speed at high angles of attack, medium and high angles of attack at high rotational speed. The experimental results show that the flow field of the blade S-0 has a relatively stable flow field characteristics at low rotational speed. But when the rotational speed increases and the angle of attack becomes higher, the flow field stability of the blade AS-0 is better. Finally, the flow field of blade AS-0 is more stable than the flow field of blade S-0 under most flight conditions. Therefore, blade AS-0 is more suitable for assembly on coaxial counter-rotating rotors. © 2024 SPIE.

关键词： Angle of attack

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The Effects of Halal Labels on Packaged Ice Cream Purchase Interest Among Foreign Muslim Consumers - A Case Study in Taiwan

The Effects of Halal Labels on Packaged Ice Cream Purchase I...

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2024 International Conference on Sustainable Islamic Business and Finance, SIBF 2024

作者： Setiawan, Rizal Justian Ma'ruf, Khakam Azizah, Nur Rusmala, Amna Khosyiati, Nur Evirda Widodo, Syukri Fathudin Achmad College of Engineering Yuan Ze University Dept of Industrial Engineering and Management Zhongli Taiwan Gadjah Mada University Faculty of Engineering Dept of Industrial Engineering Yogyakarta Indonesia School of Public Health China Medical University Dept of International Public Health Taichung Taiwan College of Agriculture National Chung Hsing University Dept of International Master Program of Agriculture Taichung Taiwan Yogyakarta State University Faculty of Engineering Dept of Culinary Engineering Education Yogyakarta Indonesia Yogyakarta State University Faculty of Engineering Dept of Mechanical Engineering Education Yogyakarta Indonesia

ISBN: (纸本)9798331520359

This study explores the impact of halal labels on the purchase interest of foreign Muslim consumers in Taiwan, focusing on packaged ice cream. A total of 92 respondents from 11 different nationalities participated in the survey, providing insights into how halal certification influences consumer behavior in a non-Muslim majority country. The research used a mixed-methods approach, combining quantitative data from structured questionnaires and qualitative insights from interviews. The findings indicate a strong positive correlation (p = 0.985, p © 2024 IEEE.

关键词： Halal Ice Cream Label Muslim Packaged Purchase

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Centralized Training with Decentralized Execution Reinforcement Learning for Cooperative Multi-agent Systems with Communication Delay 61

Centralized Training with Decentralized Execution Reinforcem...

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61st Annual Conference of the Society of Instrument and Control Engineers of Japan, SICE 2022

作者： Ikeda, Takuma Shibuya, Takeshi University of Tsukuba Master's Program in Intelligent and Mechanical Interaction Systems Ibaraki Japan University of Tsukuba Faculty of Engineering Information and Systems Ibaraki Japan

ISBN: (数字)9784907764784

ISBN: (纸本)9784907764784

In cooperative multi-agent systems, efficient coordination among agents is important when accomplishing tasks. VFFAC is a method that learns the communication system between agents and their interactions with the environment to obtain policies with high performance. However, this method results in decreased performance of policy in environments with a delay in communication. Furthermore, there is no formulation of the control problem of a cooperative multi-agent system with communication delays in unknown environments. In this study, we formulated a decision-making problem in a cooperative multi-agent system with an unknown environment model and a certain length delay in communication. We also propose a method to handle communication delays by using the history of information obtained through communication. We demonstrated that the proposed method successfully learns policy with high rewards through simulated experiments in an environment with a communication delay. © 2022 The Society of Instrument and Control Engineers - SICE.

关键词： Reinforcement learning

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Reinforcement Learning to Efficiently Recover Control Performance of Robots Using Imitation Learning After Failure

Reinforcement Learning to Efficiently Recover Control Perfor...

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2022 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2022

作者： Kobayashi, Shoki Shibuya, Takeshi University of Tsukuba Master's Program in Intelligent and Mechanical Interaction Systems Ibaraki Japan University of Tsukuba Faculty of Engineering Information and Systems Ibaraki Japan

ISBN: (数字)9781665452588

ISBN: (纸本)9781665452588

Extreme environments, such as space and underwater, are difficult for humans to enter because they involve risks, hence it is necessary to employ autonomous robots instead of humans. When robots fail in extreme environments, it is essential for the robot to automatically recover control following the rules of failure because humans cannot repair the robot directly. Reinforcement learning is expected to automatically acquire the control rule;however, the retrieval of the control rule requires significant trial-and-error. Imitation learning cannot acquire the control rule if no suitable expert data exist. Methods combining imitation learning and reinforcement learning reduce the number of trial-and-errors;however, they are still not effective against robot failure because these methods cannot utilize expert data effectively. This paper proposes a reinforcement learning method that efficiently recovers control performance from failures by utilizing both the control rules prepared by the designer and multiple discriminators to calculate measures similar to expert data. Experimental results show that the proposed method recovers the control performance with fewer episodes than the conventional method. The main contribution of the proposed method is its efficiency against robot failure through utilizing expart data prepared for failure by the designers for imitation learning. © 2022 IEEE.

关键词： Reinforcement learning

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Loss Balancing for Physics-Informed Neural Networks Considering Procedure for Solving Partial Differential Equations

Loss Balancing for Physics-Informed Neural Networks Consider...

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International Symposium on Soft Computing and Intelligent Systems (SCIS)

作者： Manabu Kojima Kazuma Otsuki Masato Suzuki Masajiro Abe Masaaki Baba Kazuya Yokota Master's Program in Mechanical Engineering Nagaoka University of Technology Nagaoka Japan Department of System Safety Engineering Nagaoka University of Technology Nagaoka Japan Department of Mechanical Engineering Nagaoka University of Technology Nagaoka Japan

ISBN: (数字)9798350373332

ISBN: (纸本)9798350373349

With the development of machine learning, numerical analysis using neural networks has been devised. Remarkably, physics-informed neural networks (PINNs) enable physically consistent numerical analysis by introducing a loss function that conforms to relevant governing equations. Moreover, research is rapidly advancing for the application of PINNs to inverse analysis in areas such as physical property identification. For a PINN to learn governing equations, the weights of the loss functions should be properly determined because they have different roles in components such as boundary conditions, initial conditions, and governing equations. However, weight setting is generally challenging. We propose a loss balancing method considering the procedure for solving partial differential equations. The proposed method is validated through comparisons with conventional solvers.

关键词： Training Heating systems Numerical analysis Partial differential equations Neural networks Manuals Machine learning Object recognition MATLAB Convergence

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Design of small single cylinder 4 stroke spark ignition engine for electric generator with flexible fuel: Biogas, liquefied petroleum gas (lpg) or gasoline 11th

Design of small single cylinder 4 stroke spark ignition engi...

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11th International Conference on Materials and Manufacturing Technology, ICMMT 2020

作者： Lie, David Nindhia, Tjokorda Gde Tirta Surata, I. Wayan Wirawan, Nengah Master student at Study program of M aster in Mechanical Engineering Engineering Faculty Udayana University Jimbaran Bali Indonesia Study Program of Mechanical Engineering Engineering Faculty Udayana University Jimbaran Bali Indonesia

ISBN: (纸本)9783035737226

The available of conventional fuels are fluctuating depend on distribution from the source production to consumer. The availability of biogas as renewable energy is increasing due to establishments of many organic wastes processing worldwide. The need of electricity to support daily life activity is a must, but the availability of electric source in remote area is limited especially for a farm that far away from commercial line distribution of electricity. This work is dedicated to solve this problem. The single cylinder 4 stroke spark ignition engine (83 cc) was designed to be able to be fuelled flexibly by using biogas or liquefied petroleum gas (LPG), or gasoline if sometime the biogas not available during initiation of the process or during maintenance of anaerobic digester. The engine is still can be run to provide electricity by using conventional fuel such as LPG or gasoline. The full consumption as well as emission of this flexible fuel engine was investigated. It is found that the fuel consumption is 9.97 L/mint for Biogas, 0.004 L/mint for gasoline and 2.24 L/mint for LPG. Surprisingly by using biogas the emission of carbon monoxide (CO) was down to almost zero (0.02 ppm), comparing gasoline 0.32 ppm, and LPG 0.4 ppm. © 2021 Trans Tech Publications Ltd, Switzerland.

关键词： Gasoline

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"Enhanced Energy Generation Via Composite Catalyst Gasification of In-Situ Plastic Waste"

SSRN

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SSRN 2024年

作者： Abdelrahman, Ameen Erchiqui, Fouad Nedil, Mourad Material science Département School of Engineering Canada Mechanical Engineering Department Université du Québec en Abitibi-Témiscamingue Canada Master of Engineering Program School of Genius

This study responds to the urgent global imperative to address climate change by shifting towards sustainable practices, with a particular focus on mitigating the environmental impact of plastic waste. We delve into the gasification of municipal plastic solid waste as an alternative to traditional disposal methods like incineration or landfilling. Our approach involves the development of composite materials incorporating manganese, titanium, and iron oxides within clay. By optimizing key gasification parameters as heating rate, loading, and reaction time, we aim to maximize gas yields and improve the quality of products. Through characterization techniques XRD, TEM, SEM, GC, and EDX analysis, © 2024, The Authors. All rights reserved.

关键词： Gasification

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Study on In-clothes Body Weight Support System to Support Treating and Recovering Knee Arthopathy

Study on In-clothes Body Weight Support System to Support Tr...

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2022 IEEE International Conference on Systems, Man, and Cybernetics, SMC 2022

作者： Netsu, Kohki Kawamoto, Hiroaki Sankai, Yoshiyuki Univetsity of Tsukuba Master's Program in Intelligent and Mechanical Interaction Systems Ibaraki Japan University of Tsukuba Faculty of Engineering Information and Systems Center for Cybernics Research Ibaraki Japan

ISBN: (数字)9781665452588

ISBN: (纸本)9781665452588

Patients with knee arthropathy suffer from pain owing to damage at the knee joint cartilage and experience difficulty in walking as the condition worsens. As one of treatments of knee arthropathy, an implantation of cellular cartilage has been performed. After implantation of cellular cartilage, the knee joint should avoid overweight to prevent cell damage form body weight and apply appropriate mechanical stress to articular cartilage to promote cartilage regeneration. Therefore, a weight support system which can adjust the amount of weight in everyday use is required. This study aims to develop an in-clothes body weight support system to protect the knee joint during daily walking to support knee arthropathy treatment and recovery in regenerative medicine, and confirm basic performance of the system through experiments with able-bodied person. The system had frame structure with two-node link from the groin to the foot with the user's knee joint as the center of rotation. It consisted of load-bearing seat, height adjustment mechanism, thigh cuff, mechanical knee joint, and, ground reaction force sensor shoes, and was designed to be sufficiently thin to fit inside clothes. In the 10-Meter walking test, the system could adjust the amount of supporting weight and support two-thirds, one-half, and one-third of total body weight of an able-bodied participant during walking. In conclusion, we confirmed that the developed system had basic performance of weight support. © 2022 IEEE.

关键词： Cartilage

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