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arXiv 2022年

作者： Gong, Tao Liberal, Inigo Camacho, Miguel Spreng, Benjamin Engheta, Nader Munday, Jeremy N. Department of Electrical and Computer Engineering University of California DavisCA United States Department of Materials Science and Engineering University of California DavisCA United States Institute of Smart Cities Public University of Navarre Pamplona Spain Department of Electronics and Electromagnetism University of Seville Seville Spain Department of Electrical and Systems Engineering University of Pennsylvania PhiladelphiaPA United States

Epsilon-near-zero (ENZ) materials have been demonstrated to exhibit unique electromagnetic properties. Here we propose the concept of radiative energy bandgap for an ENZ nanoparticle coupled with a quantum emitter (QE). The radiative emission of the coupled QE-nanoparticle can be significantly suppressed around the ENZ frequency and substantially enhanced otherwise, yielding an effective energy bandgap for radiation. This suppression is effectively invariant with respect to the particle size and is therefore an intrinsic property of the ENZ material. Our concept also heralds an alternative pathway to quench the emission from a QE, which may find potential application in quantum information storage. © 2022, CC BY.

关键词： Nanoparticles

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Predicting the role of inequalities on human mobility patterns

arXiv

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arXiv 2024年

作者： Boldini, Alain De Lellis, Pietro Imperatore, Salvatore Das, Rishita Ceferino, Luis Heitor, Manuel Porfiri, Maurizio Department of Mechanical Engineering New York Institute of Technology College of Engineering and Computer Science Old WestburyNY11568 United States Center for Urban Science and Progress Department of Mechanical and Aerospace Engineering New York United States University Tandon School of Engineering BrooklynNY11201 United States Department of Electrical Engineering and Information Technology University of Naples Federico II NA Naples80125 Italy Center for Urban Science and Progress Department of Mechanical and Aerospace Engineering New York University Tandon School of Engineering BrooklynNY11201 United States Department of Aerospace Engineering Indian Institute of Science Karnataka Bengaluru560012 India Center for Urban Science and Progress Department of Civil and Urban Engineering New York University Tandon School of Engineering BrooklynNY11201 United States Department of Civil and Environmental Engineering College of Engineering University of California Berkeley BerkeleyCA94720 United States Center for Urban Science and Progress Marron Institute of Urban Management New York United States Center for Innovation Technology and Policy Research Instituto Superior Técnico Technical University of Lisbon Lisbon1049-001 Portugal Center for Urban Science and Progress Department of Mechanical and Aerospace Engineering Department of Biomedical Engineering New York University Tandon School of Engineering BrooklynNY11201 United States

Whether in search of better trade opportunities or escaping wars, humans have always been on the move. For almost a century, mathematical models of human mobility have been instrumental in the quantification of commuting patterns and migratory fluxes. Equity is a common premise of most of these mathematical models, such that living conditions and job opportunities are assumed to be equivalent across cities. Growing inequalities in modern urban economy and pressing effects of climate change significantly strain this premise. Here, we propose a mobility model that is aware of inequalities across cities in terms of living conditions and job opportunities. Comparing results with real datasets, we show that the proposed model outperforms the state-of-the-art in predicting migration patterns in South Sudan and commuting fluxes in the United States. This model paves the way to critical research on resilience and sustainability of urban systems. Copyright © 2024, The Authors. All rights reserved.

关键词： Forecasting

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Comparative Analysis of Common Carotid Artery Intima-Media Thickness and Lagrangian Wall Strain in Relation to Cardiovascular Risk Factors Using Ultrasound

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Ultrasound in Medicine and Biology 2025年

作者： Kiernan, Maxwell J. Mitchell, Carol Lee, Yurim Dou, Yimeng Zhang, Zhiwei Fletcher, Erica Hansen, Kristin Kliewer, Mark Lee, Matthew H. Stein, James H. Korcarz, Claudia Hess, Timothy Varghese, Tomy Department of Medical Physics University of Wisconsin School of Medicine and Public Health Madison WI United States Department of Medicine University of Wisconsin School of Medicine and Public Health Madison WI United States Department of Electrical and Computer Engineering University of Wisconsin-Madison Madison WI United States Department of Regional Services UW Health Madison WI United States Department of Radiology University of Wisconsin School of Medicine and Public Health Madison WI United States

Objective: This study examines the relationship between carotid intima-media thickness (CIMT), carotid artery wall strain indices measured via ultrasound, and their associations with cardiovascular disease (CVD) risk factors in a low CVD risk population. Methods: Eighty healthy volunteers (median age 35 y, 50% female) underwent carotid ultrasound imaging for CIMT and strain indices. Participants’ clinical data, including total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, high-sensitivity C-reactive protein, hemoglobin A1c, systolic blood pressure (SBP), diastolic blood pressure, body mass index and smoking status, were collected. Spearman Rho correlations assessed relationships between CIMT and strain indices. Multiple linear regression examined associations between strain indices and CVD risk factors, while Mann–Whitney U tests compared median differences between sexes. Statistical analyses were performed using SPSS. Results: No significant associations were seen between CIMT measurements and strain parameters. After adjustment for CVD risk factors, several strain indices were significantly associated with CVD risk factors. Age was inversely related to all strain parameters. SBP was significantly positively related to axial and shear strain. Hemoglobin A1c was significantly inversely related to most axial and shear strain (all p values <0.05). These relationships are consistent with previous findings in the literature. We also found that BMI was positively related to all strain parameters, which may be due to increased compliance with more gradual arterial remodeling. Conclusion: Strain parameters remained significantly related to several CVD risk factors in fully adjusted models. All strain parameters are associated with age. Axial and shear parameters are associated with SBP and hemoglobin A1c. These findings suggest that strain measures may represent early mechanical changes in the arterial wall and have

关键词： Cardiovascular health Carotid artery Elastography IMT

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Real Time Adjustment to Mitigate the SPV Forecasting Errors with BESS and EV - An Utility Case Study

Real Time Adjustment to Mitigate the SPV Forecasting Errors ...

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IEEE Power India Conference

作者： Piyush A. Sharma Abheejeet Mohapatra Ankush Sharma Sanjeev Pannala Noel Schulz Anurag Srivastava Scott Gibson John Hieb Department of Electrical Engineering Indian Institute of Technology Kanpur India School of EECS Washington State University Pullman WA USA Lane Department of Computer Science and Electrical Engineering West Virginia University Morgantown WV USA Snohomish County Public Utility District Everett WA USA

ISBN: (纸本)9781665459310

Adherence to schedules prepared by operators has become more challenging with an increase in the penetration level of non-dispatchable resources at different scales. The inherent variability and uncertainty associated with such resources including Solar Photo-Voltaic (SPV) based generation poses real-time scheduling challenges. Irrespective of the forecasting technique adopted, errors will always persist. Hence, the power flow must be optimized in real-time. The capability of dispatchable resources including Battery Energy Storage Systems (BESSs) and Electric Vehicles (EVs) can be leveraged to absorb the forecast errors in real-time so that the schedules pre-specified by operators can be effectively followed. A problem formulated as an Optimal Power Flow (OPF) is presented in this paper to mitigate SPV forecasting errors for the Snohomish County public Utility District (SnoPUD)’s Arlington Microgrid in the USA. Real world datasets have been used for testing and validation of the developed approach for the Arlington Microgrid with two test cases 1) grid connected mode and 2) islanded mode of operation. Detailed results are also presented in the article, taking two different seasonal (Spring and Summer) variations into account.

关键词： Schedules Low voltage Uncertainty Microgrids Optimal scheduling Real-time systems Forecasting

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Channel capacity of the ribosome

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Physical Review E 2023年第4期108卷 044404-044404页

作者： Daniel A. Inafuku Kay L. Kirkpatrick Onyema Osuagwu Qier An David A. Brewster Mayisha Zeb Nakib Department of Physics University of Illinois Urbana-Champaign Urbana Illinois 61801 USA Department of Mathematics University of Illinois Urbana-Champaign Urbana Illinois 61801 USA Electrical and Computer Engineering Department Morgan State University Baltimore Maryland 21251 USA Cybersecurity Assurance and Policy Center Morgan State University Baltimore Maryland 21251 USA Department of Physics University of California Santa Barbara Santa Barbara California 93106 USA John A. Paulson School of Engineering and Applied Sciences Harvard University Cambridge Massachusetts 02138 USA

Translation is one of the most fundamental processes in the biological cell. Because of the central role that translation plays across all domains of life, the enzyme that carries out this process, the ribosome, is required to process information with high accuracy. This accuracy often approaches values near unity experimentally. In this paper, we model the ribosome as an information channel and demonstrate mathematically that this biological machine has information-processing capabilities that have not been recognized previously. In particular, we calculate bounds on the ribosome's theoretical Shannon capacity and numerically approximate this capacity. Finally, by incorporating estimates on the ribosome's operation time, we show that the ribosome operates at speeds safely below its capacity, allowing the ribosome to process information with an arbitrary degree of error. Our results show that the ribosome achieves a high accuracy in line with purely information-theoretic means.

关键词： Biomolecular processes Emergent biological functions from complex interactions Gene expression Nucleic acid replication & information processes Biomolecules Enzymes Nucleic acids Peptides Proteins RNA Stochastic analysis

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Paracetamol Concentration-Sensing Scheme Based on a Linear Cavity Fiber Laser Configuration

SSRN

引用

SSRN 2023年

作者： Soares, Liliana Perez-Herrera, Rosa Ana Novais, Susana Ferreira, António Frazão, Orlando Silva, Susana INESC TEC Institute for Systems and Computer Engineering Technology and Science Rua do Campo Alegre 687 Porto4150-179 Portugal Department of Engineering Physics Faculty of Engineering University of Porto R. Dr. Roberto Frias s/n Porto4200-465 Portugal Department of Electrical Electronic and Communication Engineering Public University of Navarra Pamplona31006 Spain Public University of Navarra Pamplona31006 Spain LEPABE—Laboratory for Process Engineering Environment Biotechnology and Energy Department of Chemical Engineering Faculty of Engineering University of Porto Rua Dr. Roberto Frias s/n Porto4200-465 Portugal ALiCE -Associate Laboratory in Chemical Engineering Faculty of Engineering University of Porto Rua Dr. Roberto Frias Porto4200-465 Portugal

A paracetamol concentration-sensing scheme based on a linear cavity fiber laser configuration is demonstrated experimentally. The laser cavity has a fiber sensor at one end, that allows refractive index measurements. The refractometer consists of a cleaved fiber tip combined with an FBG functioning as a reflecting mirror. The combination of a fiber loop mirror at the other end allows to reflect all the light from the FBG and refractometer, forming a linear cavity. By measuring the intensity variation of the Fresnel reflection at the fiber-to-liquid interface, the measured concentration is linear and have a concentration sensitivity of [[EQUATION]] µW/(g/kg), over a range of 52.61 to 219.25 g /kg, and with a resolution of 2.77 g/kg. The results obtained present great stability and prove the potential of the fiber laser system to performed real-time measurements of concentration, in a non-invasive way. © 2023, The Authors. All rights reserved.

关键词： Refractometers

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Design and Implementation of Charging Circuit for Energy Storage System in Multi-Input Non-Isolated Converter with High Gain

Design and Implementation of Charging Circuit for Energy Sto...

引用

IEEE International Conference on Intelligent engineering Systems (INES)

作者： Donya Taheri Ghazanfar Shahgholian Mohammad Mehdi Mirtalaei Amirhosein Mosavi Arman Fathollahi Annamaria Varkonyi-Koczy Department of Electrical Engineering Najafabad Branch Islamic Azad University Najafabad Iran Smart Microgrid Research Center Najafabad Branch Islamic Azad University Najafabad Iran John von Neumann Faculty of Informatics Budapest Hungary University of Public Service Budapest Hungary Department of Electrical and Computer Engineering Aarhus University Aarhus Denmark John von Neumann Faculty of Informatics Obuda University Budapest Hungary

In this study, the topology of a multi-input high-gain non-isolated power converter is suggested. Within this converter, techniques involving voltage multiplier cells and a coupling inductor are utilized. It is possible to use switches that have low voltage stress and, as a result, low conductivity by combining these two methodologies. For applications dealing with clean energy, like green electrical power for public hospitals and etc., that consider a specific type of energy storage system, this particular configuration is an excellent choice. First, the charging performance of the energy storage system is explained, and then, for the design of the multi-input non-isolated power converter with a high voltage gain, the configuration and functionality of the proposed converter are fully investigated. This is accomplished so that the multi-input non-isolated converter can have high voltage gain. The correct operation of the converter is demonstrated through the presentation of a detailed design method, and numerical outcomes are shown for a variety of modes in which the converter can operate effectively. Eventually, to guarantee that the simulation outcomes are accurate, an experimental prototype of the proposed converter has been produced in a laboratory, and the results of the simulation have been validated with those obtained in practice.

关键词：

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Towards Designing Shared Digital Forensics Instructional Materials

Towards Designing Shared Digital Forensics Instructional Mat...

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IEEE Annual International computer Software and Applications Conference (COMPSAC)

作者： Weifeng Xu Lin Deng Dianxiang Xu School of Criminal Justice College of Public Affairs University of Baltimore Maryland USA Department of Computer and Information Sciences Towson University Maryland USA Department of Computer Science and Electrical Engineering University of Missouri at Kansas City Missouri USA

ISBN: (数字)9781665488105

ISBN: (纸本)9781665488112

This paper presents a systematic approach to designing a series of digital forensics instructional materials to address the severe shortage of active learning materials in the digital forensics community. The materials include real-world scenario-based case studies, a set of hands-on problem-driven labs for each case study, and an integrated forensic investigation environment. In this paper, we first clarify some fundamental concepts related to digital forensics, such as digital forensic artifacts, artifact generators, and evidence. We then re-categorize knowledge units of digital forensics based on the artifact generators for measuring the coverage of learning outcomes and topics. Finally, we utilize a real-world cybercrime scenario to demonstrate how knowledge units, digital forensics topics, concepts, artifacts, and investigation tools can be infused into each lab through active learning. The repository of the instructional materials is publicly available on GitHub. It has gained nearly 600 stars and 22k views within several months.

关键词： Systematics Conferences Digital forensics Stars Generators Software computer crime

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NTIRE 2023 Challenge on Efficient Super-Resolution: Methods and Results

NTIRE 2023 Challenge on Efficient Super-Resolution: Methods ...

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2023 IEEE/CVF Conference on computer Vision and Pattern Recognition Workshops, CVPRW 2023

作者： Li, Yawei Zhang, Yulun Timofte, Radu Van Gool, Luc Yu, Lei Li, Youwei Li, Xinpeng Jiang, Ting Wu, Qi Han, Mingyan Lin, Wenjie Jiang, Chengzhi Luo, Jinting Fan, Haoqiang Liu, Shuaicheng Wang, Yucong Cai, Minjie Li, Mingxi Zhang, Yuhang Fan, Xian-Jun Sheng, Yankai Mao, Yanyu Zhang, Nihao Wang, Qian Zheng, Mingjun Sun, Long Pan, Jinshan Dong, Jiangxin Tang, Jinhui Yang, Zhongbao Wang, Yan Pan, Erlin Cai, Qixuan Dai, Xinan Zhussip, Magauiya Kalyazin, Nikolay Vyal, Dmitry Zou, Xueyi Yan, Youliang Chung, Heaseo Zhang, Jin Yu, Gaocheng Zhang, Feng Wang, Hongbin Liao, Bohao Du, Zhibo Wu, Yu-Liang Shi, Gege Peng, Long Wang, Yang Cao, Yang Zha, Zhengjun Huang, Zhi-Kai Chen, Yi-Chung Chiang, Yuan-Chun Yang, Hao-Hsiang Chen, Wei-Ting Chang, Hua-En Chen, I-Hsiang Hsieh, Chia-Hsuan Kuo, Sy-Yen Liu, Xin Pan, Jiahao Yu, Hongyuan Yu, Weichen Ge, Lin Dong, Jiahua Zou, Yajun Wu, Zhuoyuan Han, Binnan Zhang, Xiaolin Zhang, Heng Yin, Xuanwu Zuo, Kunlong Deng, Weijian Yuan, Hongjie Lu, Zengtong Ouyang, Mingyu Ma, Wenzhuo Liu, Nian Zheng, Hanyou Zhang, Yuantong Zhang, Junxi Chen, Zhenzhong Gendy, Garas Sabor, Nabil Hou, Jingchao He, Guanghui Zhu, Yurui Wang, Xi Fu, Xueyang Zha, Zheng-Jun Yin, Daheng Liu, Mengyang Chen, Baijun Li, Ao Luo, Lei Jin, Kangjun Zhu, Ce Zhang, Xiaoming Xie, Chengxing Li, Linze Meng, Haiteng Zhang, Tianlin Li, Tianrui Zhao, Xiaole Zhang, Zhao Li, Baiang Zheng, Huan Zhao, Suiyi Gao, Yangcheng Ren, Jiahuan Hu, Kang Shi, Jingpeng Wu, Zhijian Huang, Dingjiang Zhu, Jinchen Li, Hui Xv, Qianru Liu, Tianle Weng, Shizhuang Wu, Gang Jiang, Junpeng Liu, Xianming Jiang, Junjun Zhang, Mingjian Hu, Jing Wu, Chengxu Fan, Qinrui Feng, Chengming Luo, Ziwei Hu, Shu Lyu, Siwei Wu, Xi Wang, Xin Computer Vision Lab ETH Zurich Switzerland Computer Vision Lab University of Würzburg Germany Megvii Technology China MicroBT China College of Computer Science and Electronic Engineering Hunan University China Attrsense Xian University of Posts and Telecommunications Xi'an China National Engineering Laboratory for Cyber Event Warning and Control Technologies China Nanjing University of Science and Technology China Nankai University China University of Electronic Science and Technology of China China Tianjin University China Noah's Ark Lab Huawei Technologies McMaster University Canada Espresomedia Korea Republic of AntGroup China University of Science and Technology of China China Department of Electrical Engineering National Taiwan University Taiwan Graduate Institute of Communication Engineering National Taiwan University Taiwan Graduate Institute of Electronics Engineering National Taiwan University Taiwan ServiceNow United States China Mobile Research Institute China Chongqing University of Technology China Multimedia Department Xiaomi Inc. China Institute of Automation Chinese Academy of Sciences China Shenyang Institute of Automation Chinese Academy of Sciences China School of Information and Communication Engineering Communication University of China China Smart Classroom Division Ruijie Networks Co. Ltd. China School of Remote Sensing and Information Engineering Wuhan University China Micro-Nano Electronics Department Shanghai Jiao Tong University Shanghai200240 China Electrical Engineering Department Faculty of Engineering Assiut University Assiut71516 Egypt Southeast University China University of Electronic Science and Technology of China Chengdu China Chongqing University of Posts and Telecommunications Chongqing China Information Technology Co. Ltd Hangzhou China Southwest Jiaotong University China National Space Science Center Chinese Academy of Science China Hefei University of Technology Hefei China Anhui University China Fried Ric

ISBN: (纸本)9798350302493

This paper reviews the NTIRE 2023 challenge on efficient single-image super-resolution with a focus on the proposed solutions and results. The aim of this challenge is to devise a network that reduces one or several aspects such as runtime, parameters, FLOPs, activations, memory footprint, and depth of RFDN while at least maintaining the PSNR of 29.00dB on DIV2K validation datasets. The challenge had 272 registered participants, and 35 teams made valid submissions. They gauge the state-of-the-art for efficient single-image super-resolution. © 2023 IEEE.

关键词： Optical resolving power

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Effective Two-Stage Double Auction for Dynamic Resource Trading in Edge Networks via Overbooking

arXiv

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arXiv 2025年

作者： Wu, Sicheng Liwang, Minghui Wang, Deqing Wang, Xianbin Wu, Chao Tang, Junyi Li, Li Jiao, Zhenzhen The School of Informatics Xiamen University Fujian China The Department of Control Science and Engineering The National Key Laboratory of Autonomous Intelligent Unmanned Systems Tongji University Shanghai China Frontiers Science Center for Intelligent Autonomous Systems Ministry of Education Tongji University Shanghai China The Department of Electrical and Computer Engineering Western University ON Canada The School of Public Affairs Zhejiang University Hangzhou310027 China School of Information Science and Engineering Lanzhou University Lanzhou China The iF-Labs Beijing Teleinfo Technology Co. Ltd. CAICT China

To facilitate responsive and cost-effective computing resource scheduling and service delivery over edge-assisted mobile networks, this paper investigates a novel two-stage double auction methodology via utilizing an interesting idea of resource overbooking to overcome dynamic and uncertain nature from edge servers (sellers) and demand from mobile devices (as buyers). The proposed auction integrates multiple essential factors such as social welfare maximization and decision-making latency (e.g., the time for determining winning seller-buyer pairs) reduction, by introducing a stagewise strategy: an overbooking-driven pre-double auction (OPDAuction) for determining long-term cooperations between sellers and buyers before practical resource transactions as Stage I, and a real-time backup double auction (RBDAuction) for handling residual resource demands during actual transactions. In particular, by applying a proper overbooking rate, OPDAuction helps with facilitating trading contracts between appropriate sellers and buyers as guidance for future transactions, by allowing the booked resources to exceed supply. Then, since pre-auctions may cause risks, our RBDAuction adjusts to real-time market changes, further enhancing the overall social welfare. More importantly, we offer an interesting view to show that our proposed two-stage auction can support significant design properties such as truthfulness, individual rationality, and budget balance. Through extensive experiments, we demonstrate good performance in social welfare, time efficiency, and computational scalability, outstripping conventional methods in dynamic edge computing settings. Copyright © 2025, The Authors. All rights reserved.

关键词： Budget control

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