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International Conference on Electrical Machines and Systems (ICEMS)

作者： Junchen Zhao Jin Wang Libing Zhou Weihua Huang Yiming Ma Zhiwei Zhang State Key Laboratory of Advanced Electromagnetic Engineering and Technology (School of Electrical and Electronic Engineering) Huazhong University of Science and Technology Wuhan China Department of Electrical and Computer Engineering The Ohio State University Columbus OH USA

This paper proposes a stepped slot-opening shift method to reduce the cogging torque of the interior permanent magnet motors. In the proposed method, the slot-openings are segmented along the motor axis and shifted respectively. Keeping the slot-opening width and the central position of the slots remain the same, it can achieve the effect of minimizing cogging torque similar to the skewing slots method, while maintaining the three-phase symmetry of the motor. Firstly, based on the theoretical analysis of the resultant cogging torque, the working principle of the stepped slot-opening shift method is given. Then, considering the impact of the local magnetic saturation in the rotor core, two improved stepped slot-opening shift methods are proposed by 2-dimensional finite element analysis (FEA)-first, the stepped slot-openings with optimal shift angles and, second, the stepped slot-openings with optimal step lengths. Furthermore, the electromagnetic torque and back electromotive force before and after the stepped slot-opening shift are compared and analyzed.

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Initial ASEAN digital security and interoperability standard proposal

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AIP Conference Proceedings 2023年第1期2739卷

作者： Sangsuree Vasupongayya Gunawan Hutagalung Obrina Candra Chalee Vorakulpipat Doni Purnomo Parinda Wattanasri Eko Supriyanto Shukor Abd Razak Othman Ibrahim Anazida Zainal Sri Devi Ravana Hiep Cong Pham Tharith Sriv Daw Khin Myo Su Mora Hertanto Agus Winarno Prabaswari Raden Muhammad Taufik Yuniantoro Badrus Zaman Fatmawati Retna Apsari Yutika Amelia Effendi Norjihan Abdul Ghani Zarina Shukur Hamidah Ibrahim Nur Izura Udzir Marnel Peradilla Jude Michael Teves Nestor Michael Tiglao Cenon Alfonso Pg Emeroylariffion Abas Mueen Uddin Agustin Kusumayati Brian Sri Prahastuti Department of Computer Engineering Faculty of Engineering Prince of Songkla University Hatyai Songkhla 90110 THAILAND Directorate General of Post and Information Technology Ministry of Communication and Information Technology Jakarta INDONESIA Politeknik Siber dan Sandi Negara National Cyber & Crypto Agency (BSSN) Depok West Java INDONESIA Information Security Research Team at National Electronics and Computer Technology Center Bangkok THAILAND National Standardization Agency of Indonesia Jakarta INDONESIA Department of Disease Control Ministry of Public Health Mueang Nonthaburi Nonthaburi THAILAND School of Biomedical Engineering and Health Sciences Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Johor MALAYSIA IJN-UTM Cardiovascular Engineering Center Institute of Human Centered Engineering Universiti Teknologi Malaysia Johor Bahru Johor MALAYSIA School of Computing Faculty of Engineering Universiti Teknologi Malaysia Johor Bahru Johor MALAYSIA Faculty of Computer Science & Information Technology Universiti Malaya Kuala Lumpur MALAYSIA RMIT University Vietnam Ho Chi Minh City VIETNAM Royal University of Phnom Penh Phnom Penh CAMBODIA Yangon University of Economics Yangon MYANMAR Agency for the Assessment and Application of Technology (BPPT) Jakarta INDONESIA Faculty of Science and Technology Universitas Airlangga Surabaya East Java INDONESIA Faculty of Advanced Technology and Multidiscipline Universitas Airlangga Surabaya East Java INDONESIA Centre for Cyber Security Universiti Kebangsaan Malaysia Bangi Selangor MALAYSIA Faculty of Computer Science and Information Technology Universiti Putra Malaysia Serdang Selangor MALAYSIA Computer Technology Department College of Computer Studies De La Salle University Manila PHILIPPINES Software Technology Department College of Computer Studies De La Salle University Manila PHILIPPINES Electrical and Electronics Engineering Institute University of the Philippines Diliman Quezon City P

In this work, the result of the initial attempt to propose an Association of Southeast Asian Nations (ASEAN) digital security and interoperability standard to support the mobility among ASEAN countries is presented. Literature reviews on existing coronavirus disease 2019 (COVID-19) related digital technologies of six ASEAN member countries are conducted. Several concerns related to creating/implementing the ASEAN digital security and interoperability standard are discussed including the technology accessing concern, the data security and privacy concern, and the data interoperability and availability concern. The proposed solution toward creating an ASEAN digital security and interoperability standard is then presented. To evaluate the proposed solution, a survey has been conducted on representatives of nine ASEAN countries on four main issues including the security standards and requirements, the interoperability standard and requirements, the certifications, and the implementation challenges. According to the survey and the discussion, seven recommendations were proposed toward creating an ASEAN digital security and interoperability standard. First, each country collects and maintains the data of its own citizens and also provides a method to authenticate and access the data by authorized requests. Second, QR code standard or ASEAN QR code standard must be agreed upon so that it can be authenticated and verified by ASEAN countries. Third, health risk assessment must be agreed upon to be used. Forth, the security standard, the data, the data format and the exchange protocol must be agreed upon at the ASEAN policy level while adoption of international standards as an implementation guideline will ease of the process and neutralize different requirements from various countries. Fifth, any accountability of incidents must be agreed upon at the ASEAN policy level. Sixth, certification might be extended to certification of risk assessment for organizations, products or

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Comparative study of electric currents and energetic particle fluxes in a solar flare and earth magnetospheric substorm

arXiv

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arXiv 2021年

作者： Artemyev, Anton Zimovets, Ivan Sharykin, Ivan Nishimura, Yukitoshi Downs, Cooper Weygand, James Fiori, Robyn Zhang, Xiao-Jia Runov, Andrei Velli, Marco Angelopoulos, Vassilis Panasenco, Olga Russell, Christopher Miyoshi, Yoshizumi Kasahara, Satoshi Matsuoka, Ayako Yokota, Shoichiro Keika, Kunihiro Hori, Tomoaki Kazama, Yoichi Wang, Shiang-Yu Shinohara, Iku Ogawa, Yasunobu Department of Earth Planetary and Space Sciences Institute of Geophysics and Planetary Physics University of California Los AngelesCA United States Space Research Institute RAS Moscow Russia Department of Electrical and Computer Engineering Center for Space Sciences Boston University BostonMA United States Predictive Science Inc. San DiegoCA United States Geomagnetic Laboratory Natural Resources Canada OttawaON Canada Advanced Heliophysics PasadenaCA United States ISEE Nagoya University Nagoya464-8601 Japan Department of Earth and Planetary Science School of Science The University of Tokyo Institute of Space and Astronautical Science Japan Aerospace Exploration Agency Kanagawa Sagamihara Japan Osaka University Machikaneyama-cho Toyonaka560-0043 Japan Academia Sinica Institute of Astronomy and Astrophysics No.1 Sec. Roosevelt Rd Taipei10617 Taiwan ISAS JAXA Sagamihara252-0222 Japan National Institute of Polar Research Tokyo Japan

Magnetic field-line reconnection is a universal plasma process responsible for the conversion of magnetic field energy to the plasma heating and charged particle acceleration. Solar flares and Earth's magnetospheric substorms are two most investigated dynamical systems where magnetic reconnection is believed to be responsible for global magnetic field reconfiguration and energization of plasma populations. Such a reconfiguration includes formation of a long-living current systems connecting the primary energy release region and cold dense conductive plasma of photosphere/ionosphere. In both flares and substorms the evolution of this current system correlates with formation and dynamics of energetic particle fluxes. Our study is focused on this similarity between flares and substorms. Using a wide range of datasets available for flare and substorm investigations, we compare qualitatively dynamics of currents and energetic particle fluxes for one flare and one substorm. We showed that there is a clear correlation between energetic particle bursts (associated with energy release due to magnetic reconnection) and magnetic field reconfiguration/formation of current system. We then discuss how datasets of in-situ measurements in the magnetospheric substorm can help in interpretation of datasets gathered for the solar flare. © 2021, CC BY.

关键词： Magnetic fields

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STLDAS: Secure Two Level Deduplication and Auditing of Shared Data in Cloud

STLDAS: Secure Two Level Deduplication and Auditing of Share...

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IEEE Region 10 Symposium

作者： C M Geeta G Mithila Lakshmi R G Shreyas Raju S Raghavendra Rajkumar Buyya K R Venugopal S S Iyengar L M Patnaik Department of Computer Science and Engineering University Visvesvaraya College of Engineering Bangalore University India Cloud Computing and Distributed Systems (CLOUDS) Lab School of Computing and Information Systems The University of Melbourne Australia Bangalore University Bengaluru India Department of Computer Science and Engineering Florida International University USA INSA National Institute of Advanced Studies Indian Institute of Science Campus Bangalore India

With the cloud repository service furnished by the cloud computing, users can comfortably arrange themselves as a cluster and distribute information effectively. In order to empower public verifier to audit the distributed information, clients in the cluster need to Figure out signatures on complete chunks of collaborative information. Every client in the cluster modifies and signs his respective chunks, and deploys in the cloud server. Hence specific chunks of shared information are normally signed by specific clients. If anyone of the customers' is found malicious, he is immediately repudiated from the cluster. The prevailing clients in the cluster are permitted to re-sign the chunks that were earlier signed by this eliminated client. This approach is inefficient due to the massive amount of collaborative information in the cloud. By exploiting the approach of proxy re-signatures, the CSP is acknowledged to re-sign chunks in support of the prevailing clients during customer repudiation. When many clients deploy the same information to the cloud repository, repository space has identical copies, hence deduplication technology is usually utilized to lower the capacity and bandwidth prerequisites of the utilities by removing repetitious information and hoarding only an original replica of them. In order to assimilate both data honesty and deduplication in cloud, we present a novel Secure Two Level Deduplication and Auditing of Shared Data in Cloud (STLDAS) mechanism. Experimental results show that our mechanism achieves secure deduplication and appreciable improvement in tag generation.

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Molybdenum trioxide (MoO3) Capacitive Soil Moisture Microsensor for In-situ Agriculture Applications: Measurement Studies and Temperature Effects

Molybdenum trioxide (MoO3) Capacitive Soil Moisture Microsen...

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IEEE Sensors

作者： Sandeep G Surya Saravanan Yuvaraja Khaled N. Salama Maryam Shojaei Baghini Vinay S Palaparthy Sensors lab Advanced Membranes and Porous Materials Center Computer Electrical and Mathematical Science and Engineering Division King Abdullah University of Science and Technology (KAUST) Saudi Arabia Department of Electrical Engineering Indian Institute of Technology Bombay India

The soil moisture sensor is of utmost importance in agriculture due to issues including water conservation and disease prediction. This work presents the design and development of a molybdenum trioxide (MoO_3) based capacitive soil moisture microsensor. The sensor comprises an interigitated electrode (IDE) on a silicon wafer and MoO_3 is drop cast on IDE, which acts as the sensing film. IDE on Si wafer is mounted on the printed circuit board (PCB) and electrical contacts are taken out. During the lab measurements, we observed changes of 153 pF to 400 pF for different soil moisture ranges of 7% to 55% respectively in the black clayey soil. The response time for the fabricated microsensors is around 120 seconds in the soil for all types of measurements. Further, the change in response of the sensor is 16% when the temperature varies from 25 ℃ to 50 ℃. Thus, we conclude that MoO_3 is one of the potential oxides in the capacitive sensor platform and can be used for the in-situ soil moisture sensing.

关键词： Soil moisture microsensors Molybdenum trioxide (MoO_3) based sensors Agriculture application

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51.2: Photoalignment and Photopatterning of Highly Concentrated Quantum Rods Embedded in Liquid Crystal Polymer Matrix

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SID Symposium Digest of Technical Papers 2021年第S1期52卷

作者： Chengbin KANG Swadesh K. Gupta Maksym F. Prodanov Yiyang GAO Valerii V. Vashchenko Abhishek K. Srivastava State Key Laboratory of Advanced Displays and Optoelectronics Technologies Department of Electronics and Computer Engineering The Hong Kong University of Science and Technology Hong Kong S.A.R China Department of Physics D B S College Kanpur Uttar Pradesh India

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Demand-driven single- and multitarget mixture preparation using digital microfluidic biochips

Demand-driven single- and multitarget mixture preparation us...

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作者： Shalu Kumar, Srijan Singla, Ananya Roy, Sudip Chakrabarty, Krishnendu Chakrabarti, Partha P. Bhattacharya, Bhargab B. CoDA Laboratory Department of Computer Science and Engineering Indian Institute of Technology Roorkee Roorkee247667 India Department of Computer Science Stanford University StanfordCA94305 United States Department of Electrical and Computer Engineering Duke University Durham27708 United States Department of Computer Science and Engineering Indian Institute of Technology Kharagpur Kharagpur721302 India Advanced Computing and Microelectronics Unit Indian Statistical Institute Kolkata Kolkata700108 India

Recent studies in algorithmic microfluidics have led to the development of several techniques for automated solution preparation using droplet-based digital microfluidic (DMF) biochips. A major challenge in this direction is to produce a mixture of several reactants with a desired ratio while optimizing reactant cost and preparation time. The sequence of mix-split operations that are to be performed on the droplets is usually represented as a mixing tree (or graph). In this article, we present an efficient mixing algorithm, namely, Mixing Tree with Common Subtrees (MTCS), for preparing single-target mixtures. MTCS attempts to best utilize intermediate droplets, which were otherwise wasted, and uses morphing based on permutation of leaf nodes to further reduce the graph size. The technique can be generalized to produce multitarget ratios, and we present another algorithm, namely, Multiple Target Ratios (MTR). Additionally, in order to enhance the output load, we also propose an algorithm for droplet streaming called Multitarget Multidemand (MTMD). Simulation results on a large set of target ratios show that MTCS can reduce the mean values of the total number of mix-split steps (Tms) and waste droplets (W) by 16% and 29% over Min-Mix (Thies et al. 2008) and by 22% and 34% over RMA (Roy et al. 2015), respectively. Experimental results also suggest that MTR can reduce the average values of Tms andW by 23% and 44% over the repeated version of Min-Mix, by 30% and 49% over the repeated version of RMA, and by 9% and 22% over the repeated-version of MTCS, respectively. It is observed that MTMD can reduce the mean values ofTms andW by 64% and 85%, respectively, over MTR. Thus, the proposed multitarget techniques MTR and MTMD provide efficient solutions to multidemand, multitarget mixture preparation on a DMF platform. © 2018 ACM.

关键词： Digital microfluidics

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Correction to: Pharmacological Rescue With SR8278, A Circadian Nuclear Receptor REV-ERBα Antagonist As A Therapy for Mood Disorders In Parkinson's Disease

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Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics 2022年第4期19卷 1432页

作者： Jeongah Kim Inah Park Sangwon Jang Mijung Choi Doyeon Kim Woong Sun Youngshik Choe Ji-Woong Choi Cheil Moon Sung Ho Park Han Kyoung Choe Kyungjin Kim Department of Brain Sciences Daegu Gyeongbuk Institute of Science and Technology (DGIST) Daegu 42988 Korea. Department of Anatomy College of Medicine Korea University Seoul Korea. Program in Neurosciences & Mental Health The Hospital for Sick Children Toronto ON Canada. Korea Brain Research Institute (KBRI) Daegu Korea. Department of Electrical Engineering and Computer Science DGIST Daegu Korea. Convergence Research Advanced Centre for Olfaction DGIST Daegu Korea. Department of Biological Sciences Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Korea. Department of Brain Sciences Daegu Gyeongbuk Institute of Science and Technology (DGIST) Daegu 42988 Korea. kyungjin@dgist.ac.kr. Convergence Research Advanced Centre for Olfaction DGIST Daegu Korea. kyungjin@dgist.ac.kr.

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First 20 years of green radios

arXiv

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arXiv 2019年

作者： Zhang, Shunqing Xu, Shugong Li, Geoffrey Ye Ayanoglu, Ender Shanghai Institute for Advanced Communication and Data Science Shanghai University Shanghai200444 China School of Electrical and Computer Engineering Georgia Institute of Technology AtlantaGA30332 United States Department of Electrical Engineering and Computer Science University of California IrvineCA92697 United States

Green radios jointly consider the spectrum efficiency and the energy efficiency in wireless networks in order to provide sustainable development. In the past two decades, various green radio solutions for different types of terminals and radio access networks have been developed, some of which have been used in the designs of wireless products. In this paper, we provide a historical view on some fundamental works and practical issues. In addition to providing a comprehensive overview on theoretical achievements, we also discuss several important power saving solutions with notable engineering impacts, such as Doherty power amplifier and separated baseband unit - remote radio unit architecture, which might be overlooked in previous publications. Moreover, with the huge growth of wireless traffic in the near future, green radio design for future wireless networks shall involve an end-to-end energy efficiency investigation of mobile terminals, radio access and core networks, and different applications. By introducing green radio schemes for advanced terminals and future wireless networks, this article will not only be beneficial for readers with only preliminary background in communications and signal processing but also have reference and historical values for researchers and practical engineers in the area. Copyright © 2019, The Authors. All rights reserved.

关键词： Energy harvesting

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Design of Multi-band Patch Antenna for Ubiquitous Wireless Communication

Design of Multi-band Patch Antenna for Ubiquitous Wireless C...

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International Conference on Informatics, Electronics & Vision (ICIEV)

作者： Rezaul Azim Touhidul Alam Mohammad Tariqul Islam Department of Physics University of Chittagong Chittagong Bangladesh Department of Computer Science and Engineering International Islamic University Chittagong Chittagong Bangladesh Centre of Advanced Electronic and Communication Engineering (PAKET) Universiti Kebangsaan Malaysia Bangi Selangor Malaysia

In this paper, a compact planar patch antenna is proposed for multi-band wireless communication applications. The antenna is consists of an inverted F-shaped radiating element and a modified F-shaped ground and is imprinted on the both side of a low cost FR4 substrate material. To excite the resonant modes at multiple operating bands, two inverted L-shaped resonating elements are added respectively to the patch and ground plane and thus the antenna is able to achieve eight frequency bands of 835 - 872 MHz, 1.476 - 1.566 GHz, 2.185 - 2.280 GHz, 3.080 - 3.256 GHz, 3.618 - 3.680 GHz, 4.215 - 4.335 GHz, 4.582 - 4.692 GHz and 5.405 - 5.925 GHz bands.

关键词： Microstrip antennas Microstrip Wireless LAN WiMAX 5G mobile communication

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