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Wireless Power Week (WPW)

作者： Xiaochen Yu Ya-Xun Lin Ivona Z. Mitrovic Steve Hall der-Sheng Chao Jenq-Horng Liang Yi Huang Ta-Jen Yen Jiafeng Zhou International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu Taiwan Department of Electrical Engineering and Electronics University of Liverpool Liverpool United Kingdom Nuclear Science and Technology Development Center National Tsing Hua University Hsinchu Taiwan Department of Engineering and System Science National Tsing Hua University Hsinchu Taiwan Department of Materials Science and Engineering National Tsing Hua University Hsinchu Taiwan

ISBN: (数字)9798350349139

ISBN: (纸本)9798350349146

This paper presents a 20 W high-power RF-to-dC rectifier that can be applied to wireless power transfer (WPT) systems. To address the power limitations of conventional diodes, a rectifier is designed based on a gallium nitride (GaN) integrated circuit (IC) quasi-vertical Schottky barrier diode (SBd). Leveraging the advantages of high mobility, wide bandgap, and saturation velocity of the GaN, significant benefits of the diode have been derived, with an ultra-low turn-on voltage of 0.23 ± 0.005 V (at 1 A/cm 2 ) and a high breakdown voltage of 180 V, to improve the rectification performance. Using this diode, a high-power rectifier with a wide input power range and high efficiency is developed. The proposed rectifier structure consists of a single-shunt self-developed diode and a topology with class-F harmonics control networks. It achieves a peak power conversion efficiency of 72.9% with an input power of 43 dBm at 900 MHz.

关键词： Wireless communication Integrated circuits Schottky diodes Wireless sensor networks Breakdown voltage Rectifiers Wireless power transfer

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Reusable Hydrogen Storage Tank with Flange design

Reusable Hydrogen Storage Tank with Flange Design

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International Conference on Applied System Innovation (ICASI)

作者： Yun-Qi Li Hsuan-Jung Chen Hsi-Wen Yang Chih-Yuan Chen Shao-Fu Chang Ssu-Ying Chen Chien-Chon Chen College of Engineering and Science Ph.D. Program in Materials and Chemical Engineering National United University Miaoli Taiwan Department of Chemistry Michigan State University MI USA Department of Materials Engineering National United University Miaoli Taiwan Graduate Institute of Intellectual Property National Taipei University of Technology Taiwan Department of Energy Engineering National United University Miaoli Taiwan

ISBN: (数字)9798350394924

ISBN: (纸本)9798350394931

For how to store and transport hydrogen, the first thought is to store hydrogen directly in the cylinder. However, this method is not desirable, because generally at least 700 atm high pressure, the hydrogen contained in the cylinder to be useful. Therefore it is very unsafe at such high pressures. In This paper, we design and production of a new generation of solid-state hydrogen storage and discharge container. The goal of “development of solid-state hydrogen storage technology” is to break through the bottlenecks of hydrogen storage technology safety, hydrogen storage density, high-efficiency hydrogen absorption and release, transportation safety, and engineering practice.

关键词： Technological innovation Hydrogen storage Temperature Surface resistance Hydrogen Transportation Production

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INSITU BIORESTORATION AS A GROUNdWATER REMEdIATION TECHNIQUE

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GROUNd WATER MONITORING ANd REMEdIATION 1986年第4期6卷 56-64页

作者： WILSON, JT LEACH, LE HENSON, M JONES, JN John T. Wilson is a research microbiologist with EPA's Robert S. Kerr Environmental Research Laboratory in Ada Oklahoma (P. O. Box 1198 Ada OK 74820). He is responsible for developing an in-house and extra-mural research program to define microbial transformations of organic contaminants in subsurface environments. He received a Ph. D. in soil microbiology from Cornell University in 1978 Lowell E. Leach is an environmental engineer with the Ada Laboratory (United States Environmental Protection Agency Robert S. Kerr Environmental Research Laboratory P. O. Box 1198 Ada OK 74820). He is responsible for developing methodology for sampling ground water and subsurface materials and manages an international cooperative research program on land treatment of waste waters with the Republic of China. He received a B. S. in geological engineering from Oklahoma University in 1959 Michael Henson is a research microbiologist with the Ada Laboratory. He conducts in-house research on microbial transformations of pollutants in the subsurface. He received a Ph. D. in microbiology from the University of Florida in 1983 Jerry N. Jones is a chemist with the Ada Laboratory. He has extensive experience with the U. S. Army Corps of Engineers Waterways Experiment Station in the remediation of hazardous waste sites. At Ada his research responsibilities are directed at remediation of ground water contamination from underground storage tanks. He received a B. S. in chemistry from East Central Oklahoma University in 1974 and an M. S. in environmental science from Oklahoma University in 1982

In situ biorestoration, where applicable, is indicated as a potentially very cost-effective and environmentally acceptable remediation technology. Many contaminants in solution in ground water as well as vapors in the unsaturated zone can be completely degraded or transformed into new compounds by naturally occurring indigenous microbial populations. Undoubtedly, thousands of contamination events are remediated naturally before the contamination reaches a point of detection. The need is for methodology to determine when natural biorestoration is occurring, the stage the restoration process is in, whether enhancement of the process is possible or desirable, and what will happen if natural processes are allowed to run their *** addition to the nature of the contaminant, several environmental factors are known to influence the capacity of indigenous microbial populations to degrade contaminants. These factors include dissolved oxygen, ph. temperature, oxidation-reduction potential, availability of mineral nutrients, salinity, soil moisture, the concentration of specific pollutants, and the nutritional quality of dissolved organic carbon in the ground *** enhanced in situ bioreclamation techniques available today are variations of hydrocarbon degradation procedures pioneered and patented by Raymond and coworkers at Suntech during the period 1974 to 1978. Nutrients and oxygen are introduced through injection wells and circulated through the contaminated zone by pumping one or more producing *** limiting factor in remediation technology is getting the contaminated subsurface material to the treatment unit or units, or in the case of in situ processes, getting the treatment process to the contaminated material. The key to successful remediation is a thorough understanding of the hydrogeologic and geochemical characteristics of the contaminated area.

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A Review on Analytical Approaches for Ambient Ozone Open data in Taiwan

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Current Pollution Reports 2024年第3期10卷 374-386页

作者： Nguyen, duy-Hieu Liao, Chih-Hsiang Bui, Xuan-Thanh Yuan, Chung-Shin Lin, Chitsan Ph.D. Program in Maritime Science and Technology College of Maritime National Kaohsiung University of Science and Technology Kaohsiung Taiwan (R.O.C.) Department of Environmental Engineering and Science Chia-Nan University of Pharmacy and Science Tainan Taiwan (R.O.C.) Key Laboratory of Advanced Waste Treatment Technology & Faculty of Environment and Natural Resources Ho Chi Minh City University of Technology (HCMUT) Ho Chi Minh City Vietnam Vietnam National University Ho Chi Minh City (VNU-HCM) Ho Chi Minh City Vietnam Institute of Environmental Engineering National Sun Yat-Sen University Kaohsiung Taiwan (R.O.C.) Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung Taiwan (R.O.C.)

The air quality in Taiwan is significantly impacted by ambient ozone (O3) pollution, which poses a challenge in terms of control due to the involvement of precursors and influencing factors in its ph.tochemical process. This review investigates the measures that have been implemented in Taiwan over the past two decades to address this issue and evaluate their effectiveness in reducing O3 concentrations. Furthermore, it highlights relevant studies that have employed advanced methods to examine the O3 problem. Comprehending the complex formation of O3 and its driving factors is crucial in efficiently managing O3 pollution. Nevertheless, accurately quantifying the impacts of these factors can be challenging due to their interconnections. To bridge this gap in knowledge, conducting a robust causality analysis becomes imperative to accurately quantify the causal influence of major factors. Furthermore, eliminating seasonal variations can improve the precision and accuracy of trend analyses concerning long-term changes in O3 concentrations. deep learning, in particular, holds significant advantages in predicting O3 concentrations as it can capture non-linear and long-term memory characteristics effectively. In summary, attaining acceptable O3 levels in Taiwan is challenging due to its geograph.cal location, which makes it susceptible to air pollution from both local sources as well as distant upwind areas. The utilization of advanced methods is essential for comprehensively studying the evolution of O3 and formulating effective mitigation measures. While there is a necessity to develop new analytical methods, implementing existing robust methodologies can also provide valuable insights into the dynamics and impacts of O3. By leveraging these approaches, we can enhance our comprehension of O3 pollution in Taiwan and develop effective strategies to mitigate its harmful effects on air quality.

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Smart Residential Parking

Smart Residential Parking

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International Conference on Informatics and Computational sciences (ICICoS)

作者： Suhartono Jung-Lung Chiang Maria Mahardini Sakanti C. Bambang dwi Kuncoro Ph.D. Program Prospective Technology of Electrical Engineering and Computer Science National Chin-Yi University of Technology Taichung Taiwan R.O.C Graduate Institute of Precision Manufacturing National Chin-Yi University of Technology Taichung Taiwan R.O.C Department of Refrigeration Air Conditioning and Energy Engineering National Chin-Yi University of Technology Taichung Taiwan R.O.C

ISBN: (数字)9798350375886

ISBN: (纸本)9798350375893

This research aims to create a smart residential system that will improve parking management in residential areas using mini-server technology. Another aim is to provide a safe and effective smart parking solution for residential areas with limited capacity. This research method uses mini-server technology and control to create smart system ideas. Apart from that, this research also uses servo motor technology, proximity sensors, cameras, and IoT applications for smart parking management. The result is the creation of intelligent residential parking management, which uses a Raspberry Pi 5 Model B as a server and control to improve the parking management system in residential areas, and the use of number plate recognition technology to be applied to Smart City. This further research offers a new perspective on creating intelligent parking solutions using two input validation parameters simultaneously, namely facial and license plate recognition

关键词： Smart cities Automated parking Servers Security Internet of Things Usability Servomotors

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The Smart Analysis of Performing Scalable Inference for Big data Analytics

The Smart Analysis of Performing Scalable Inference for Big ...

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International Conference on Power Energy, Environment and Intelligent Control (PEEIC)

作者： Vishakha d Bhandarkar Aruna Sri Rongali Mohamed dawood Shamout Prof. Sachin Pund Gigih Forda Nama Shrishailappa Patil Applied Mathematics and Humanities Yeshwantrao Chavan College of Engineering India Graduate Doctoral Information Technology/Graduate (Information Technology Emphasis/Information Technology Ph.D.) University of The Cumberlands US Department of Management College of Business Administration University of Sharjah Sharjah United Arab Emirates Department of Industrial Engineering Shri Ramdeobaba College of Engineering and Management Nagpur Maharashtra India Department of Informatics Doctoral Program of Environtmental Science University of Lampung Bandar Lampung Computer engineering Vishwakarma Institute of Technology Pune

This paper examines the reproducibility of massive information analytics under particular factors. The paper proposes the “performing Scalable Inference” technique to cope with scalability troubles and to exploit current big statistics platforms for efficient computing and statistics garage of the statistics. In particular, the paper describes how to perform leak-free, parallelizable visible analytics over massive datasets using present extensive records analytics frameworks such as Apache Flink. This method presents an automated manner to execute analytics that preserves reproducibility and the ability to make adjustments without re-running the entire technique. The paper also demonstrates how these analytics may help several real-world use instances, explore affected person cohorts for studies, and develop stratified patient cohorts for hospital therapy. In the end, the paper observes how the proposed method may be exercised within the real world. Actively scalable inference for massive information analytics is pivotal in optimizing decision-making and allocation of assets. Typically, such inferences are made based on information accumulated from numerous sources, databases, unstructured data, and different digital sources. So one can ensure scalability, a complete cloud-primarily based platform has to be hired. This solution will permit the ***, deploying the essential records series and evaluation algorithms are prime here. It could permit the platform to recognize the styles inside the statistics and discover any ability correlations or traits. Additionally, predictive analytics and system mastering strategies may be incorporated to provide insights into the results of the information. In the long run, by leveraging those techniques, the platform can draw efficient inferences and appropriately compare situations in an agile and green way..

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Emission characteristics of naph.halene from ship exhausts under global sulfur cap

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science of the Total Environment 2023年 902卷 166172页

作者： Yeh, Chin-Ko Tzu, Fu-Ming Chen, Po-Yang Shen, Hsueh-Chen Yuan, Chung-Shin Lin, Chitsan Pu, Han-Pin Ngo, Huu Hao Bui, Xuan-Thanh Department of Marine Engineering National Kaohsiung University of Science and Technology Kaohsiung805301 Taiwan Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung811213 Taiwan Ph.D. Program in Maritime Science and Technology National Kaohsiung University of Science and Technology Kaohsiung811213 Taiwan Institute of Environmental Engineering National Sun Yat-sen University Kaohsiung804201 Taiwan School of Civil and Environmental Engineering University of Technology Sydney SydneyNWS2007 Australia 268 Ly Thuong Kiet Street District 10 Ho Chi Minh City Viet Nam Linh Trung ward Ho Chi Minh City700000 Viet Nam

The global sulfur limit regulation mandates the use of 0.5 % low sulfur fuel oil (LSFO) to reduce emissions of sulfur oxides (SOx), nitrogen oxides (NOx), and particulate matter (PM). However, the addition of naph.halene (Nap) to LSFO to stabilize its quality has led to an increase in polycyclic aromatic hydrocarbons (PAHs), with Nap being the main pollutant. This study investigates the effects of Nap in ship exhaust by analyzing the emission concentrations of volatile organic compounds (VOCs) and Nap in the exhaust of 16 ships, including 2 container ships, 6 bulk carriers, 1 tanker, 2 ferries, 3 fishing vessels, and 2 harbor crafts, based on USEPA method TO-15A. The results show that the percentage of Nap emissions in the exhaust gases of the 16 ship engines ranged from 77 % to 97 % of the total volatile organic compound (TVOC). The Nap concentration in the exhaust of fishing vessels, tanker, and harbor craft exceeded the occupational exposure limit of 50,000 μg/m3, with fishing vessels having the highest TVOC and Nap concentrations. The enhanced Nap emission in the air degrades air quality in port cities and poses an obvious potential public health risk. While the benefits of the global sulfur cap are being secured, additional efforts should be made to reduce the undetected side effects. Alternative stabilizers of LSFO should be considered, or Nap emission control should be boosted to mitigate the potential negative impact on harbor air quality. © 2023 Elsevier B.V.

关键词： Air quality

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Ecological Risk Assessment and Corrective Actions of dioxins Polluted Sediment in the Brine Water Storage Pond of Chemical Plant

SSRN

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SSRN 2022年

作者： Huang, Wen-Yen Huang, Chi-Wei Lin, Chitsan Li, Yi-Lin Huang, Tsung-Po Bui, Xuan-Thanh Ngo, Huu Hao Department of Marine Environmental Engineering National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan Ph.D. Program in Maritime Science and Technology College of Maritime National Kaohsiung University of Science and Technology Kaohsiung81157 Taiwan 268 Ly Thuong Kiet Street District 10 Ho Chi Minh City700000 Viet Nam Linh Trung Ward Ho Chi Minh City700000 Viet Nam School of Civil and Environmental Engineering University of Technology Sydney SydneyNSW2007 Australia

despite the high toxicity of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCdd/Fs, or dioxins), the case studies about PCdd/Fs contamination in sediment are still few and its ecological impacts are not fully elucidated. To improve the risk management of PCdd/Fs pollution in sediment, the present study conducted the environmental risk assessment of the brine water storage pond near a chemical plant with high PCdd/Fs pollution potential before and after corrective actions. The results showed the PCdd/Fs accumulation in the fish and crab from the brine water storage pond, and the PCdd/Fs concentrations in biota were all higher than the food safety standard in Taiwan (3.5 pg-TEQ/g). Furthermore, the different indexes showed high degree of pollution including contamination factor (CF), modified degree of contamination (mCd), and pollution index (PI) in the PCdd/Fs polluted sediment. High biological risk indexes such as potential ecological risk index (RI) and risk quotient (RQ) were also observed in the PCdd/Fs contaminated sediment before the corrective actions. After the corrective actions such as institutional/engineering control and remediation, the CF, mCd, and PI decreased by 20–41%. The RI and RQ were also decreased by 41–56%. In conclusion, the corrective actions applied in the present study could help decrease the pollution and ecological risk of PCdd/Fs in the polluted sediment of the study site, which might further decrease the environmental risk to an acceptable level for the stakeholders if keeping implementation of the corrective actions. © 2022, The Authors. All rights reserved.

关键词： Risk management

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Response surface optimization and sensitive analysis on biomagnetic blood Carreau nanofluid flow in stenotic artery with motile gyrotactic microorganisms

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SN Applied sciences 2023年第12期5卷 355页

作者： Tang, Tao-Qian Shah, Zahir Thumma, Thirupathi Rooman, Muhammad Vrinceanu, Narcisa Alshehri, Mansoor H. Department of Internal Medicine E-Da Hospital I-Shou University Kaohsiung82445 Taiwan School of Medicine College of Medicine I-Shou University Kaohsiung82445 Taiwan International Intercollegiate Ph.D. Program National Tsing Hua University Hsinchu30013 Taiwan Department of Family and Community Medicine E-Da Hospital I-Shou University Kaohsiung82445 Taiwan Department of Engineering and System Science National Tsing Hua University Hsinchu30013 Taiwan Department of Mathematical Sciences University of Lakki Marwat Khyber Pakhtunkhwa Lakki Marwat28420 Pakistan Department of Mathematics B V Raju Institute of Technology Telangana State Narsapur Medak502313 India Faculty of Engineering Department of Industrial Machines and Equipments "Lucian Blaga" University of Sibiu 10 Victoriei Boulevard Sibiu Romania Department of Mathematics College of Science King Saud University P.O. Box 2455 Riyadh11451 Saudi Arabia

Abstract: In this study, we investigate blood flow in a small artery with a constriction using gold nanoparticles (Au) in the presence of microorganisms, mass, and heat transfer. The non-Newtonian behavior of blood fluid in slight arteries is quantitatively inspected by simulating blood flow using the Carreau fluid model. Momentum equations incorporating magnetohydrodynamics (MHd) and darcy–Forchheimer porous media are used to model the fluid flow. Heat transfer properties, including thermal radiation, joule dissipation, and bio-convective microorganisms, are investigated. Blood serves as the base fluid for the nanofluid, which contains gold nanoparticles. The system's nonlinear partial differential equations are transformed into nonlinear OdEs through suitable transformations. To obtain numerical solutions for these OdEs, the homotopy analysis method is used. The ph.sical implications of flow restrictions are compared with fictitious fluid flow using ph.sical interpretations. Additionally, investigations into the interpretations of blood flow based on drag force and heat transfer are being conducted. ANOVA, or analysis of variance, is a dependable statistical tool used to evaluate regression models and a variety of statistical tests. These investigations include error assessments, total error evaluations, F-values, p-values, and model fit assessments. These statistical investigations were applied to the dataset at hand, with the goal of achieving a robust 95% level of confidence. We investigate the effects of minute adjustments in parameters on both the heat transfer rate and the friction factor rate using these analyses. The study intends to dive deeper into the potential effects of minor changes in one or more factors on the overall effectiveness of surface friction rate and the larger domain of thermal energy transfer. This will be performed by employing sensitivity analysis approaches. This strategy allows us to obtain a better understanding of how minor change

关键词： Nonlinear equations

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design of Optical System of Augmented Reality Near Eye device

Design of Optical System of Augmented Reality Near Eye Devic...

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Educational Innovation (ECEI), IEEE Eurasian Conference on

作者： Chao-Kai Chang Feng-Ming Yeh Jiann-Hwa Lue Hsuan-Fu Wang Ya-Hui Hsieh Chun-Yu Chiang der-Chin Chen Chuen-Lin Tien Department of Optometry Yuanpei University of Medical Technology Hsinchu Taiwan Department of Optometry Taiwan University of Science and Technology Taichung Taiwan Department of Aeronautical Engineering National Formosa University Yunlin Taiwan Department of Healthcare Information and Management Ming Chuan University Taoyuan Taiwan Ph.D. Program of Electrical and Communications Engineering Feng Chia University Taichung Taiwan Department of Electrical Engineering Feng Chia University Taichung Taiwan

Augmented reality (AR) is a technology that instantly merges digital pictures with the real scene. The perspective near-eye display is a key module of AR, through which computer-generated pictures or videos can be displayed in the existing environment. The purpose of this research is to establish the system structure of an augmented reality near-eye display device and to design the off-axis two-piece reflective asph.rical mirror. Because AR glasses are wearable and are worn close to the eyes, not only the optical performance of the display but also the clear vision of the user needs to be considered. In this study, an off-axis two-piece reflective asph.rical mirror is used as the optical system of the AR for displaying the digital image. The micro-display is placed at the focal point of the optical system to form a digital image, and the horizontal movement of the micro-display along the optical axis is controlled by a precise displacement mechanism so that the patient with uncorrected myopia or hyperopia can see the digital picture and real scene. Because the right and left micro-displays move horizontally independently, the user can see the images on the AR device, which becomes the biggest feature of this study.

关键词： Performance evaluation Technological innovation Optical design digital images Optical imaging Optical reflection Augmented reality

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