检索结果-内蒙古大学图书馆

arXiv 2025年

作者： Chang, Kai-Chi Cheng, Xiang Sarihan, Murat Can Wong, Chee Wei Fang Lu Mesoscopic Optics and Quantum Electronics Laboratory Department of Electrical and Computer Engineering University of California Los AngelesCA90095 United States Center for Quantum Science and Engineering University of California Los AngelesCA90095 United States

High-dimensional entanglement in qudit states offers a promising pathway towards the realization of practical, large-scale quantum systems that are highly controllable. These systems can be leveraged for various applications, including advanced quantum information processing, secure communications, computation, and metrology. In this context, quantum frequency combs have a crucial role as they inherently support multiple modes in both temporal and frequency domains, while preserving a single spatial mode. The multiple temporal and frequency modes of quantum frequency combs facilitate the generation, characterization, and control of high-dimensional time-frequency entanglement in extensive quantum systems. In this review article, we provide an overview of recent technological advancements in high-dimensional energy-time entangled quantum frequency combs. We explore how these time-frequency qudits, achieved using scalable telecommunications-wavelength components, can empower the creation of large-scale quantum states. Advances in quantum frequency combs can unlock new capabilities and versatility for promising developments in quantum science and technology. © 2025, CC BY.

关键词： Quantum entanglement

来源：评论

学校读者我要写书评

暂无评论

The Influence of Local Stoichiometry, Bonding, and Structure on Interface Vibrations

引用

Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada 2023年第1期29卷 620-621页

作者： Hoglund, Eric R. Bao, De-Liang Hoque, Md Shafkat Bin Howe, James M. Pantelides, Sokrates T. Hopkins, Patrick E. Hachtel, Jordan A. Center for Nanophase Materials Sciences Oak Ridge National Laboratory Oak Ridge TN United States Dept. of Materials Science and Engineering University of Virginia Charlottesville VA United States Department of Physics andAstronomy Vanderbilt University Nashville TN United States Dept. of Mechanical Engineering University of Virginia Charlottesville VA United States Dept. of Electrical and Computer Engineering Vanderbilt University Nashville TN United States

来源：评论

学校读者我要写书评

暂无评论

SecBCS: a secure and privacy-preserving blockchain-based crowdsourcing system

引用

Science China(Information Sciences) 2020年第3期63卷 20-33页

作者： Chao LIN Debiao HE Sherali ZEADALLY Neeraj KUMAR Kim-Kwang Raymond CHOO Key Laboratory of Aerospace Information Security and Trusted Computing Ministry of EducationSchool of Cyber Science and Engineering Wuhan University State Key Laboratory of Cryptology College of Communication and Information University of Kentucky Department of Computer Science and Engineering Thapar University Department of Information Systems and Cyber Security and Department of Electrical and Computer Engineering University of Texas at San Antonio

A robust and scalable crowd management infrastructure is crucial in addressing operational challenges when deploying high-density sensors and actuators in a smart city. While crowdsourcing is widely used in crowd management, conventional solutions, such as Upwork and Amazon Mechanical Turk, generally depend on a trusted third-party platform. There exist several potential security concerns(e.g., sensitive leakage, single point of failure and unfair judgment) in such a centralized paradigm. Hence, a recent trend in crowdsourcing is to leverage blockchain(a decentralized ledger technology) to address some of the existing limitations. A small number of blockchain-based crowdsourcing systems(BCSs) with incentive mechanisms have been proposed in the literature, but they are generally not designed with security in mind. Thus, we study the security and privacy requirements of a secure BCS and propose a concrete solution(i.e., SecBCS)with a prototype implementation based on JUICE.

关键词： crowdsourcing blockchain secure privacy-preserving smart contract

来源：评论

学校读者我要写书评

暂无评论

Temperature Sensing with Reduced dn/dT Helical Fibers

Temperature Sensing with Reduced dn/dT Helical Fibers

引用

Conference on Lasers and Electro-Optics (CLEO)

作者： Jennifer Campbell Alexander R. Pietros Peter D. Dragic Fiber Optics Research and Glass Engineering (FORGE) Laboratory and the Holonyak Micro and Nanotechnology Laboratory Urbana Illinois USA Department of Physics University of Illinois Urbana-Champaign Urbana Illinois USA Department of Electrical and Computer Engineering University of Illinois Urbana-Champaign Urbana Illinois USA

Temperature sensing based on low dn/dT helical glass core fiber is described. These fibers possess intrinsic bend loss with attenuation that is a strong function of temperature. A proof of concept over $25-80^{\circ}... 详细信息

ISBN: (纸本)9798350369311

关键词： Temperature sensors Temperature distribution Sensitivity Fluctuations Glass Lasers and electrooptics Attenuation Laser modes Sensors Fiber lasers

来源：评论

学校读者我要写书评

暂无评论

The connection between meridians and physiological functions:A quantum principle

引用

Nano Research 2023年第11期16卷 12817-12820页

作者： Xiang-Yu Kong Min Xiang Jiancheng Fang Dong Han Bo Song Lei Jiang CAS Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China Science and Technology Center for Quantum Biology National Institute of Extremely-Weak Magnetic Field InfrastructureHangzhou 310051China CAS Center for Excellence in Nanoscience National Center for Nanoscience and TechnologyBeijing 100190China School of Optical-Electrical Computer Engineering University of Shanghai for Science and TechnologyShanghai 200093China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China

In the long history of traditional Chinese medicine(TCM),meridians play essential roles as the critical network to regulate the normal physiological functions of the human *** are regarded to be the channels connecting the internal organs with the body surface and various parts of the *** there are many studies and doctrines trying to reveal the nature of meridians for their validation in TCM,the mechanism underlying the meridians remains ***,based on our macroscopic quantum state concept of ion channels(i.e.,sub-nanometer scale channels),we propose a quantum principle of *** acupoints and organ symptom are in a macroscopic coherence state of the ion channels in *** applying TCM treatments(e.g.,TCM massage,acupuncture,moxibustion,and electroacupuncture)on the acupoint,the corresponding organ symptom could be well regulated with help of quantum meridian state.

关键词： traditional Chinese medicine meridians macroscopic quantum state external stimulation

来源：评论

学校读者我要写书评

暂无评论

Assisted Physical Interaction: Autonomous Aerial Robots with Neural Network Detection, Navigation, and Safety Layers

Assisted Physical Interaction: Autonomous Aerial Robots with...

引用

International Conference on Unmanned Aircraft Systems (ICUAS)

作者： Andrea Berra Viswa Narayanan Sankaranarayanan Achilleas Santi Seisa Julien Mellet Udayanga G.W.K.N. Gamage Sumeet Gajanan Satpute Fabio Ruggiero Vincenzo Lippiello Silvia Tolu Matteo Fumagalli George Nikolakopoulos Miguel Ángel Trujillo Soto Guillermo Heredia CATEC Advanced Center for Aerospace Technologies Seville Spain Department of Computer Electrical and Space Engineering Robotics and AI Team Luleå University of Technology Luleå Sweden Department of Electrical Engineering and Information Technology PRISMA Lab University of Naples Federico II Naples Italy Department of Electrical Engineering and Photonics Automation and Control Group Technical University of Denmark Denmark Robotics Vision and Control Group School of Engineering University of Seville Seville Spain

ISBN: (数字)9798350357882

ISBN: (纸本)9798350357899

The paper introduces a novel framework for safe and autonomous aerial physical interaction in industrial settings. It comprises two main components: a neural network-based target detection system enhanced with edge computing for reduced onboard computational load, and a control barrier function (CBF)-based controller for safe and precise maneuvering. The target detection system is trained on a dataset under challenging visual conditions and evaluated for accuracy across various unseen data with changing lighting conditions. Depth features are utilized for target pose estimation, with the entire detection framework offloaded into low-latency edge computing. The CBF-based controller enables the UAV to converge safely to the target for precise contact. Simulated evaluations of both the controller and target detection are presented, alongside an analysis of real-world detection performance.

关键词： Visualization Pose estimation Neural networks Lighting Object detection Autonomous aerial vehicles Aircraft navigation

来源：评论

学校读者我要写书评

暂无评论

Fully Decentralized Task Offloading in Multi-Access Edge Computing Systems

arXiv

引用

arXiv 2024年

作者： Aggarwal, Shubham uz Zaman, Muhammad Aneeq Bastopcu, Melih Ulukus, Sennur Başar, Tamer Coordinated Science Laboratory University of Illinois Urbana Champaign UrbanaIL61801 United States Department of Electrical and Electronics Engineering Bilkent University Türkiye Ankara06800 Turkey Department of Electrical and Computer Engineering University of Maryland College ParkMD20742 United States

We consider the problem of task offloading in multi-access edge computing (MEC) systems constituting N devices assisted by an edge server (ES), where the devices can split task execution between a local processor and the ES. Since the local task execution and communication with the ES both consume power, each device must judiciously choose between the two. We model the problem as a large population non-cooperative game among the N devices. Since computation of an equilibrium policy in this large-device scenario can be extremely difficult, and can incur significant communication overhead, we employ the mean-field game framework to compute fully decentralized low complexity solutions for each device. By leveraging the novel age of information (AoI) metric, we invoke techniques from stochastic hybrid systems (SHS) theory to study the tradeoffs between increasing information freshness and reducing power consumption. In numerical results, we verify that a higher load at the ES may lead devices to push the tasks to the ES less often. Copyright © 2024, The Authors. All rights reserved.

关键词： Stochastic systems

来源：评论

学校读者我要写书评

暂无评论

Dual-Frequency Metasurface Antenna for Earth Science Remote Sensing

Dual-Frequency Metasurface Antenna for Earth Science Remote ...

引用

European Conference on Antennas and Propagation, EuCAP

作者： Kristy Hecht Nacer Chahat Goutam Chattopadhyay Enrica Martini Mario Junior Mencagli Jet Propulsion Laboratory (JPL) California Institute of Technology Pasadena CA USA Department of Information Engineering and Mathematics University of Siena Siena Italy Department of Electrical and Computer Engineering University of North Carolina at Charlotte Charlotte NC USA

This paper presents an innovative approach to designing dual-frequency Metasurface (MTS) antennas. These antennas cater to the growing demand for multifrequency capabilities in applications like Earth science, satellite communications, and remote sensing. Traditional multifrequency antenna designs have limitations, often requiring external feeds. The paper outlines the foundational principles of single-layer, single frequency MTS antenna design and expands upon them to introduce a dual-band, dual-layered antenna configuration. The proposed design leverages Foster's reactance theorem to enable independent operation of two patterned metallic sheet at two widely separated frequencies with coplanar excitation. Simulation results demonstrate the antenna's performance, not only in broadside operation but also at various pointing angles. This approach offers a promising solution for compact multifrequency antennas in space-constrained applications, addressing the needs of modern communication systems.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Unsupervised Time-Series based Anomaly Detection in ICS/SCADA Networks

Unsupervised Time-Series based Anomaly Detection in ICS/SCAD...

引用

2021 International Symposium on Networks, computers and Communications, ISNCC 2021

作者： Tekeoglu, Ali Bekiroglu, Korkut Chiang, Chen-Fu Sengupta, Sam Johns Hopkins University Applied Physics Laboratory United States SUNY Polytechnic Institute Electrical Engineering Technology SUNY Polytechnic Institute Computer Science

ISBN: (纸本)9780738113166

Traditionally, Industrial Control Systems (ICS) have been operated as air-gapped networks, without a necessity to connect directly to the Internet. With the introduction of the Internet of Things (IoT) paradigm, along with the cloud computing shift in traditional IT environments, ICS systems went through an adaptation period in the recent years, as the Industrial Internet of Things (IIoT) became popular. ICS systems, also called Cyber-Physical-Systems (CPS), operate on physical devices (i.e., actuators, sensors) at the lowest layer. An anomaly that effect this layer, could potentially result in physical damage. Due to the new attack surfaces that came about with IIoT movement, precise, accurate, and prompt intrusion/anomaly detection is becoming even more crucial in ICS. This paper proposes a novel method for real-time intrusion/anomaly detection based on a cyber-physical system network traffic. To evaluate the proposed anomaly detection method's efficiency, we run our implementation against a network trace taken from a Secure Water Treatment Testbed (SWAT) of iTrust laboratory at Singapore. © 2021 IEEE.

关键词： Network security

来源：评论

学校读者我要写书评

暂无评论

Design and Modeling of a Proton Exchange Membrane Electrolyzer-Compressed Hydrogen Storage-Proton Exchange Membrane Fuel Cell Green Hydrogen Subsystem for Integration to a Solar Photovoltaic-Battery Nanogrid

Design and Modeling of a Proton Exchange Membrane Electrolyz...

引用

International Conference on Energy Transition in the Mediterranean Area (SyNERGY MED)

作者： Alexandros Arsalis Fanourios Kourougianni Andreas V. Olympios Panos Papanastasiou George E. Georghiou Charalampos Konstantinou Department of Electrical and Computer Engineering PV Technology Laboratory University of Cyprus Nicosia Cyprus PHAETHON Centre of Excellence for Intelligent Efficient and Sustainable Energy Solutions Nicosia Cyprus Department of Civil and Environmental Engineering University of Cyprus Nicosia Cyprus

ISBN: (数字)9798350375923

ISBN: (纸本)9798350375930

A Photovoltaic-Battery-Green Hydrogen nanogrid system is designed and modeled to investigate its potential as a decentralized energy solution able to satisfy the load profile of Near Zero Energy Buildings. Such a system could potentially maximize self-consumption through onsite power generation, which also achieves minimization of dependence on the central power grid. The proposed system includes battery and hydrogen energy storage for various purposes. Such a combination could succeed in satisfying both the need for rapid power supply when needed (through battery energy storage), but it can also provide seasonal energy storage when the weather pattern of available solar energy changes between summer and winter (through hydrogen energy storage). The Green Hydrogen subsystem includes electrolyzer and fuel cell units, both based on proton exchange membrane technology, a hydrogen storage unit, and auxiliary components. The proposed system generates 110 kg of hydrogen per year, with electrolyzer and fuel cell efficiencies (at full load design conditions) at 58.4% and 45.8%, respectively. Self-sufficiency rate is close to 100%, while self-consumption rate is slightly below 48%.

关键词： Protons Photovoltaic systems Power supplies Fuel cells Solar energy Green hydrogen Minimization Power grids Batteries Load modeling

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：