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arXiv 2024年

作者： Jiang, Tianqi Luo, Haoxiang Yang, Kun Sun, Gang Yu, Hongfang Huang, Qi Vasilakos, Athanasios V. Glasgow College University of Electronic Science and Technology of China Chengdu611731 China Key Laboratory of Optical Fiber Sensing and Communications Ministry of Education University of Electronic Science and Technology of China Chengdu611731 China Guangyuan Power Supply Company State Grid Sichuan Electric Power Company Guangyuan628033 China Peng Cheng Laboratory Shenzhen518066 China Sichuan Provincial Key Laboratory of Power System Wide-Area Measurement and Control University of Electronic Science and Technology of China Chengdu611731 China School of Information Engineering Southwest University of Science and Technology Mianyang621010 China Center for AI Research University of Agder Grimstad4879 Norway

The energy market encompasses the behavior of energy supply and trading within a platform system. By utilizing centralized or distributed trading, energy can be effectively managed and distributed across different regions, thereby achieving market equilibrium and satisfying both producers and consumers. Additionally, the energy market can address future production control and environmental concerns such as energy shortages and environmental deterioration. However, recent years have presented unprecedented challenges and difficulties for the development of the energy market. These challenges include regional energy imbalances, volatile energy pricing, high computing costs, and issues related to transaction information disclosure. These factors have hindered the smooth operation of the energy market. Researchers widely acknowledge that the security features of blockchain technology can enhance the efficiency of energy transactions and establish the fundamental stability and robustness of the energy market. This type of blockchain-enabled energy market is commonly referred to as an energy blockchain. Currently, there is a burgeoning amount of research in this field, encompassing algorithm design, framework construction, and practical application. It is crucial to organize and compare these research efforts to facilitate the further advancement of energy blockchain. This survey aims to comprehensively review the fundamental characteristics of blockchain and energy markets, highlighting the significant advantages of combining the two. Moreover, based on existing research outcomes, we will categorize and compare the current energy market research supported by blockchain in terms of algorithm design, market framework construction, and the policies and practical applications adopted by different countries. Finally, we will address current issues and propose potential future directions for improvement, to provide guidance for the practical implementation of blockchain in the

关键词： Deterioration

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Adaptively secure key-policy ABE scheme with fast decryption

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Tongxin Xuebao/Journal on communications 2014年 35卷 26-32页

作者： Li, Qi Ma, Jian-Feng Xiong, Jin-Bo Liu, Xi-Meng School of Computer Science and Technology Xidian University Xi'an710071 China Shaanxi Key Laboratory of Network and System Security Xidian University Xi'an710071 China Science and Technology on Communication Information Security Control Laboratory Jiaxing314033 China Faculty of Software Fujian Normal University Fuzhou350108 China School of Telecommunication Engineering Xidian University Xi'an710071 China

In the existing adaptively secure ABE (attribute-based encryption) schemes, the decryption cost goes linearly with the number of attributes that are used in decryption. An adaptively secure key-policy ABE (FKP-ABE) scheme with fast decryption is proposed, where constant size of computation overhead is implemented in decryption. This scheme is constructed on composite order bilinear groups and supports any monotonic access structure that can be expressed by LSSS (linear secret sharing schemes). The proposed scheme is proved to be adaptively secure in the standard model. ©, 2014, Editorial Board of Journal on communications. All right reserved.

关键词： Cryptography

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Discussion on renewal mode of historical residential area in modern cities

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IOP Conference Series: Earth and Environmental Science 2018年第5期189卷

作者： Liu Qu Chuang Han College of Civil Engineering and Architecture Harbin University of Science and Technology Harbin Heilongjiang Province 150000 China College of Civil Engineering and Mechanics Yanshan University Qinhuangdao Hebei Province 066004 China School of Measurement and Communication Engineering Harbin University of Science and Technology Harbin Heilongjiang Province 150000 China

In the context of the continuous renewal of the urban environment, it is an important problem that how to coordinate the spatial form of the decline of the area and the demand for the high quality environment in the continuation of the cultural resources in the historical residential area. Through the analysis of several practical cases, this paper compares the updating background, the renewal target and the renewal mode of the different historical residential area, and probes into their renewal mode under the different urban development requirements.

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Pressure-tunable large anomalous Hall effect of the ferromagnetic kagome-lattice Weyl semimetal Co3Sn2S2

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Physical Review B 2019年第16期100卷 165145-165145页

作者： Xuliang Chen Maoyuan Wang Chuanchuan Gu Shuyang Wang Yonghui Zhou Chao An Ying Zhou Bowen Zhang Chunhua Chen Yifang Yuan Mengyao Qi Lili Zhang Haidong Zhou Jianhui Zhou Yugui Yao Zhaorong Yang Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory Chinese Academy of Sciences Hefei 230031 China Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE) Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems School of Physics Beijing Institute of Technology Beijing 100081 China Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen 518055 China School of Physical Sciences University of Science and Technology of China Hefei 230026 China Institutes of Physical Science and Information Technology Anhui University Hefei 230601 China Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201204 China Shanghai Synchrotron Radiation Facility Shanghai Advanced Research Institute Chinese Academy of Sciences Shanghai 201204 China Department of Physics and Astronomy University of Tennessee Knoxville Tennessee 37996-1200 USA Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education) School of Physics and Astronomy Shanghai JiaoTong University Shanghai 200240 China Collaborative Innovation Center of Advanced Microstructures Nanjing 210093 China

We report a systematic high-pressure study of magnetic topological semimetal Co3Sn2S2 through measurements of synchrotron x-ray diffraction (XRD), magnetization, electrical, and Hall transports combined with first-principle theoretical calculations. No evident trace of structural phase transition is detected through synchrotron x-ray diffraction over the measured pressure range of 0.2–50.9 GPa. We find that the ferromagnetism and the anomalous Hall resistivity are monotonically suppressed as increasing pressure and almost vanish around 22 GPa. The anomalous Hall conductivity varies nonmonotonically against pressure at low temperatures, involving competition between original and emergent Weyl nodes. Combined with first-principle calculations, we reveal that the intrinsic mechanism due to the Berry curvature dominates the anomalous Hall effect under high pressure.

关键词： Anomalous Hall effect Pressure effects Transport phenomena Topological materials First-principles calculations X-ray powder diffraction

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Enhancement of quantum heat engine by encircling a Liouvillian exceptional point

arXiv

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arXiv 2023年

作者： Bu, J.-T. Zhang, J.-Q. Ding, G.-Y. Li, J.-C. Zhang, J.-W. Wang, B. Ding, W.-Q. Yuan, W.-F. Chen, L. Özdemir, S.K. Zhou, F. Jing, H. Feng, M. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and Mathematics Innovation Academy of Precision Measurement Science and Technology Chinese Academy of Sciences Wuhan430071 China University of the Chinese Academy of Sciences Beijing100049 China Research Center for Quantum Precision Measurement Guangzhou Institute of Industry Technology Guangzhou511458 China Department of Engineering Science and Mechanics Materials Research Institute Pennsylvania State University University Park State CollegePA16802 United States Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of Physics Synergetic Innovation Center for Quantum Effects and Applications Hunan Normal University Changsha410081 China School of Physics Zhengzhou University Zhengzhou450001 China

Quantum heat engines are expected to outperform the classical counterparts due to quantum coherences involved. Here we experimentally execute a single-ion quantum heat engine and demonstrate, for the first time, the dynamics and the enhanced performance of the heat engine originating from the Liouvillian exceptional points (LEPs). In contrast to the topological effects solely concerned for the LEPs, here we focus on the thermodynamic effects, which can be understood by the Landau-Zener-Stückelberg process under decoherence. We witness a positive net work from the quantum heat engine if the heat engine cycle dynamically encircles an LEP. Further investigation reveals that, under the same circumstance of the heat engine cycles, the largest net work occurs when the system is operated close to the LEP. We argue that our observation of the enhanced performance of the quantum heat engine benefits from the eigen-energy landscape close to the LEP and the topological transition induced by the LEP. Therefore, our results open a new possibility to explore the advantages of the LEPs in quantum systems from both the thermodynamic and topological aspects. © 2023, CC BY.

关键词： Topology

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Performance evaluation of on-chip wavelength conversion based on InP/In1-xGaxAs y P1-ysemiconductor waveguide platforms

arXiv

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arXiv 2020年

作者： Wen, Jin Li, Kang Gong, Yongkang Hughes, Ben Campbell, Michael A. Lazzaini, Mattia Duan, Lina Ma, Chengju Fan, Wei Jia, Zhenan Fu, Haiwei Copner, Nigel School of Science Xi An Shiyou University Xian710065 China Wireless and Optoelectronics Research Innovation Centre Faculty of Computing Engineering and Science University of South Wales CF37 JDL United Kingdom School of Physics AndAstronomy Cardiff University CardiffCF243AA United Kingdom National Physical Laboratory Hampton Road Teddington MiddlesexTWJIOLW United Kingdom National Physical Laboratory Hampton Road Teddington MiddlesexTWJIOLW United Kingdom Shaanxi Key Laboratory of Measurement Control Technology for Oil and Gas Wells Xian710065 China

We propose and design the high confinement InP/Ini-xGaxAsyPi-y semiconductor waveguides and report the results of effective wavelength conversion based on this platform. Efficient confinement and mode field area fluctuation at different wavelength is analyzed to achieve the high nonlinear coefficient. The numerical results show that nearly zero phase-mismatch condition can be satisfied through dispersion tailoring of InP/Ini-GaAsPi- waveguides, and the wavelength conversion ranging over 40 nm with the maximum conversion efficiency -26.3 dB isachieved for fixing pump power 100 mW . Meanwhile, the influences of the doping parameter y and pumping wavelength on the bandwidth and conversion efficiency are also discussed and optimized. It is indicated the excellent optical properties of the InP/In 1-x Ga x As y P 1-y waveguides and pave the way towards direct integration telecom band devices on stand semiconductor platforms. Copyright © 2020, The Authors. All rights reserved.

关键词： Semiconducting indium phosphide

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Limitations on sharing bell nonlocality between sequential pairs of observers

arXiv

引用

arXiv 2021年

作者： Cheng, Shuming Liu, Lijun Baker, Travis J. Hall, Michael J.W. The Department of Control Science and Engineering Tongji University Shanghai201804 China Shanghai Institute of Intelligent Science and Technology Tongji University Shanghai201804 China Institute for Advanced Study Tongji University Shanghai200092 China College of Mathematics and Computer Science Shanxi Normal University Linfen041000 China Centre for Quantum Computation and Communication Technology Australian Research Council Centre for Quantum Dynamics Griffith University BrisbaneQLD4111 Australia Department of Theoretical Physics Research School of Physics Australian National University CanberraACT0200 Australia

We give strong analytic and numerical evidence that, under mild measurement assumptions, two qubits cannot both be recycled to generate Bell nonlocality between multiple independent observers on each side. This is surprising, as under the same assumptions it is possible to recycle just one of the qubits an arbitrarily large number of times [P. J. Brown and R. Colbeck, Phys. Rev. Lett. 125, 090401 (2020)]. We derive corresponding 'one-sided monogamy relations' that rule out two-sided recycling for a wide range of parameters, based on a general tradeoff relation between the strengths and maximum reversibilities of qubit measurements. We also show if the assumptions are relaxed to allow sufficiently biased measurement selections, then there is a narrow range of measurement strengths that allows two-sided recycling for two observers on each side, and propose an experimental test. Our methods may be readily applied to other types of quantum correlations, such as steering and entanglement, and hence to general information protocols involving sequential measurements. Copyright © 2021, The Authors. All rights reserved.

关键词： Recycling

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A Vehicle Logo Location Method Based on Sub-block Pixel Intensity and Weight Matrix

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Journal of Physics: Conference Series 2018年第1期1069卷

作者： Zhiliang Huang Chang Lu Xiaobo Lu Cong Chen School of Automation Southeast University Nanjing 210096 China School of Software Engineering University of Science and Technology of China Anhui 230026 China Key Laboratory of Measurement and Control of CSE Ministry of Education Southeast University Nanjing 210096 China

Vehicle logo, as the key information of vehicle, combined with other vehicle characteristics will make vehicle management more effective in the intelligent transportation system. However, it is still a challenging task to detect vehicle logo due to its variations in geometry, location and illumination. In this paper, we propose a method to locate the texture type, which is based on the sub-block pixel intensity and weight matrix. This method is suitable for the target location under various backgrounds, and has a faster location speed in the complex background. It has a high robustness and strong anti-interference to the illumination. Finally, our method was verified effectively through the experiment compared to other methods.

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Fault-tolerant quantum computation with static linear optics

arXiv

引用

arXiv 2021年

作者： Tzitrin, Ilan Matsuura, Takaya Alexander, Rafael N. Dauphinais, Guillaume Bourassa, J. Eli Sabapathy, Krishna K. Menicucci, Nicolas C. Dhand, Ish Xanadu TorontoONM5G 2C8 Canada Department of Physics University of Toronto TorontoONM5S 1A7 Canada Department of Applied Physics Graduate School of Engineering University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo113-8656 Japan Centre for Quantum Computation and Communication Technology School of Science RMIT University MelbourneVIC3000 Australia Center for Quantum Information and Control University of New Mexico AlbuquerqueNM87131 United States

The scalability of photonic implementations of fault-tolerant quantum computing based on Gottesman-Kitaev-Preskill (GKP) qubits is injured by the requirements of inline squeezing and reconfigurability of the linear optical network. In this work we propose a topologically error-corrected architecture that does away with these elements at no cost-in fact, at an advantage-to state preparation overheads. Our computer consists of three modules: a 2D array of probabilistic sources of GKP states;a depth-four circuit of static beamsplitters, phase shifters, and short delay lines;and a 2D array of homodyne detectors. The symmetry of our proposed circuit allows us to combine the effects of finite squeezing and uniform photon loss within the noise model, resulting in more comprehensive threshold estimates. These jumps over both architectural and analytical hurdles considerably expedite the construction of a photonic quantum computer. Copyright © 2021, The Authors. All rights reserved.

关键词： Delay circuits

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Present status of renal replacement therapy at 2015 in Asian countries (Myanmar, Vietnam, Thailand, China, and Japan)

引用

Renal Replacement Therapy 2017年第1期3卷 11页

作者： Hyodo, Toru Hirawa, Nobuhito Hayashi, Matsuhiko Than, Khin Maung Maung Tuyen, Do Gia Pattanasittangkur, Korntip Hu, Liu Wen Naramura, Tomotaka Miyamoto, Kenichi Yamashita, Akihiro C. Comm. of Intl. Communication for Academic Research of Japanese Society for Dialysis Therapy Tokyo Japan Comm. of Japan. Soc. for Dialysis Ther. to Support Dialysis Staffs in the Asian Developing Countries Tokyo Japan Department of Nephrology Defence Services Medical Academy Yangon Myanmar Department of Nephro-Urology Bachmai Hospital Hanoi Medical University Hanoi Viet Nam Division of Nephrology Department of Internal Medicine Rajavithi Hospital Bangkok Thailand Department of Nephrology Beijing Friendship Hospital Renal Division Capital Medical University Blood Purification Quality Control and Improvement Center in Beijing Beijing China Department of Medical Engineering Junshin Gakuen University Fukuoka Japan Department of Molecular Nutrition Institution of Biomedical Sciences Tokushima University Graduate School Tokushima Japan Department of Chemical Science and Technology Faculty of Bioscience and Applied Chemistry Hosei University Tokyo Japan

Currently, the Asian region is showing marked population growth and economic progress. In developing countries in Asia, rapid demands for dialysis therapy which have the same standard as those delivered in developed countries have arisen. The end stage renal disease (ESRD) patients have been increasing in these countries, but every country has its own barriers to promote better dialysis due to several reasons as the financial, educational, historical matters and so on. However, they have overcome these problems step by step. The Japanese Society for Dialysis Therapy (JSDT) has started to make efforts to promote exchanges in the region, and increase the standard of dialysis therapy in each country. Based on the information obtained in this symposium, the committee is planning to prepare effective programs for young physicians and paramedics in developing countries. This report is the Review Article by the Committee of International communication for Academic Research of JSDT. The presentation associated this article was opened at the 61^st Annual Meeting of the Japanese Society for Dialysis Therapy held on June 26, 2015 (FRI), Yokohama City, Japan. © 2017 Japanese Society for Dialysis Therapy.

关键词： Asian developing countries Bacteria Beijing CAPD CAPD Clinical engineer Continuous ambulatory peritoneal dialysis Developing country Dialysis Dialysis therapy Dietitian Educational program ESRD ET HD Hemodialysis Hemodialysis Hemodialysis Initiative Kidney disease Labor intensity Myanmar Nutritional management Peritoneal dialysis first policy Purification of dialysis fluid Qualifications Renal transplantation Staff education Support program Textbook Thailand The Committee of International communication for Academic Research of the Japanese Society for Dialysis Therapy Vietnam

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