检索结果-内蒙古大学图书馆

IEEE General Meeting Power& Energy Society

作者： Zhongxia Zhang Rui Yang School of Electrical Computer and Energy Engineering Arizona State University Tempe AZ USA National Renewable Energy Laboratory Denver West Parkway Golden CO USA

The rapid growth of renewable energy resources penetration is bringing more challenges to power system planning and operation. Relevant renewable energy integration studies, such as the capability and dynamic performance of inverter-based resources’ primary frequency response and fast frequency response, require high-resolution renewable generation output data that are representative of renewable energy resources. This paper focuses on creating synthetic but realistic solar irradiance data and proposes a long short-term memory-based generative adversarial network to generate high-resolution (second-level) solar irradiance sequences from low-resolution (minute-level) measurements. Combined with a classifier to recognize the solar irradiance patterns, the proposed model is trained using multi-loss functions to accurately capture the temporal correlations among both high-resolution and low-resolution sequences. Verification of the proposed approach is performed on the data set of the Oahu Solar Measurement Grid collected through the National Renewable Energy laboratory. The results of the case studies demonstrate the proposed approach’s capability to capture the statistical characteristics of different solar irradiance patterns and to generate high-quality synthetic solar irradiance sequences in high resolution.

关键词：

来源：评论

学校读者我要写书评

暂无评论

RF Signal Processing with Magneto-acoustic Devices

RF Signal Processing with Magneto-acoustic Devices

引用

Magnetic Conference - Short Papers (INTERMAG Short Papers), IEEE International

作者： Pallavi Dhagat Vikrant Gokhale Albrecht Jander Brian Downey Carson Rivard Shawn Mack D. Scott Katzer Jason Roussos David Meyer School of Electrical Engineering and Computer Science Oregon State University Corvallis USA Electronics Science and Technology Division US Naval Research Laboratory Washington DC USA

We present advancements in novel rf signal processing techniques which combine the benefits of high-Q, high-linearity, and large dynamic range of acoustic wave devices with the tunability and nonlinear functionality of spin wave devices. The design and implementation of two such magneto-acoustic devices, a tunable high-overtone bulk acoustic resonator (HBAR) and a rf signal correlator are discussed. The devices are implemented on yttrium iron garnet (YIG), chosen for its low damping of both spin and acoustic waves and magnetoelastic properties for coupling them.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Prototype Design and Experimental Test for A Hydraulic-Driven Soft Robotic Arm

Prototype Design and Experimental Test for A Hydraulic-Drive...

引用

International Conference on Biomimetic Intelligence and Robotics & Medical Robotics Forum, ICBIR+MRF 2024

作者： Lei, Yu Du, Pengkun Xie, Minghao Chen, Zheng Gu, Jason Ocean College Zhejiang University Zhoushan310058 China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou310027 China Hainan Institute Zhejiang University Sanya572025 China Leicester International Institute Dalian University of Technology Panjin124221 China Department of Electrical and Computer Engineering Dalhousie University HalifaxNSB3H 4R2 Canada

Soft robotics has gained considerable attention in recent years for its structural flexibility and inherent safety in environmental interactions. To address the pitfalls of pneumatic actuation systems, namely sluggish response and inefficiencies, this paper introduces the design and fabrication of a Hydraulic-Driven Soft Robotic Arm (HDSRA). The study establishes a comprehensive platform that integrates actuation, sensing, and control software to provide an experimental prototype for validating control algorithms. A novel fabrication technique utilizing water-soluble PVA for single-step mold creation enhances the structural reliability of soft actuators. Through closed-loop control experiments, the HDSRA demonstrates rapid and precise tracking of 1Hz signals, encompassing sine, square, and ramp waves, thus confirming the platform's reliability. This foundational work lays a robust foundation for future research and the verification of control algorithms in HDSRAs. © 2024 The Authors.

关键词： Robotic arms

来源：评论

学校读者我要写书评

暂无评论

GeneDroid Fuzz: An Android Intent Fuzzing Method Based on Gene Mutation

GeneDroid Fuzz: An Android Intent Fuzzing Method Based on Ge...

引用

2024 IEEE Global Communications Conference, GLOBECOM 2024

作者： Lu, Runfeng Sun, Yuzhu Sun, Haofeng Fu, Xiao Luo, Bin Du, Xiaojiang Shi, Jin Aitsaadi, Nadjib Guizani, Mohsen Nanjing University State Key Laboratory for Novel Software Technology Nanjing China Stevens Institute of Technology Department of Electrical and Computer Engineering HobokenNJ United States Nanjing University School of Information Management Nanjing China Université Paris-Saclay David Uvsq Versailles France Mohamed Bin Zayed University of Artificial Intelligence Machine Learning Department Abu Dhabi United Arab Emirates

ISBN: (纸本)9798350351255

With the rapid expansion of mobile internet usage, the prevalence of the Android operating system on smartphones is steadily growing. However, improper utilization of the Intent mechanism within Android applications can result in security vulnerabilities. Presently, the majority of Android security testing methods, which rely heavily on fuzzing, are predominantly focused on UI interactions, lacking sufficient testing capabilities for Intents. The motivation of this paper is to find a more effective testing method to improve the security detection capabilities of Intents. This paper introduces an Intent fuzzing method based on genetic mutation principles. Initially, we establish an Intent seed library using a text classification model, followed by employing Jaccard distance and minimum edit distance to refine high-quality seeds. Subsequently, we augment the seeds through extensive mutation using genetic algorithms, generating numerous test cases that exhibit structural similarity but contain varied content. During testing, we compare the state before and after Intent testing using image similarity to detect anomalies. Experimental results demonstrate that this method effectively enhances test coverage and identifies potential issues in edge cases. This approach offers an efficient means of conducting Intent security testing and enhances Android app robustness and security. © 2024 IEEE.

关键词： Android Fuzzing Gene Mutation Intent

来源：评论

学校读者我要写书评

暂无评论

Mid-infrared chemical imaging of intracellular tau fibrils using fluorescence-guided computational photothermal microscopy

引用

Light(Science & Applications) 2023年第7期12卷 1354-1369页

作者： Jian Zhao Lulu Jiang Alex Matlock Yihong Xu Jiabei Zhu Hongbo Zhu Lei Tian Benjamin Wolozin Ji-xin Cheng Department of Electrical and Computer Engineering Boston UniversityBostonMA 02215USA The Picower Institute for Learning and Memory Massachusetts Institute of TechnologyCambridgeMA 02142USA Department of Pharmacology and Experimental Therapeutics Boston University School of MedicineBostonMA 02118USA Department of Physics Boston UniversityBostonMA 02215USA State Key Laboratory of Luminescence and Applications Changchun Institute of OpticsFine Mechanics and PhysicsChinese Academy of Sciences130033 ChangchunChina Department of Biomedical Engineering Boston UniversityBostonMA 02215USA photonics Center Boston UniversityBostonMA 02215USA present address:Department of Mechanical Engineering Massachusetts Institute of TechnologyCambridgeMA 02142USA

Amyloid proteins are associated with a broad spectrum of neurodegenerative ***,it remains a grand challenge to extract molecular structure information from intracellular amyloid proteins in their native cellular *** address this challenge,we developed a computational chemical microscope integrating 3D midinfrared photothermal imaging with fluorescence imaging,termed Fluorescence-guided Bond-Selective Intensity Diffraction Tomography(FBS-IDT).Based on a low-cost and simple optical design,FBS-IDT enables chemical-specific volumetric imaging and 3D site-specific mid-IR fingerprint spectroscopic analysis of tau fbrils,an important type of amyloid protein aggregates,in their intracellular ***-free volumetric chemical imaging of human cells with/without seeded tau fibrils is demonstrated to show the potential correlation between lipid accumulation and tau aggregate ***-resolved mid-infrared fingerprint spectroscopy is performed to reveal the protein secondary structure of the intracellular tau fibrils.3D visualization of theβ-sheet for tau fibril structure is achieved.

关键词： tau amyloid chemical

来源：评论

学校读者我要写书评

暂无评论

PVTSizing: A TuRBO-RL-Based Batch-Sampling Optimization Framework for PVT-Robust Analog Circuit Synthesis 24

PVTSizing: A TuRBO-RL-Based Batch-Sampling Optimization Fram...

引用

61st ACM/IEEE Design Automation Conference, DAC 2024

作者： Kong, Zichen Tang, Xiyuan Shi, Wei Du, Yiheng Lin, Yibo Wang, Yuan School of Integrated Circuits Peking University China Institute for Artificial Intelligence Peking University China Mpw Center Peking University China Department of Electrical and Computer Engineering The University of Texas Austin United States Yuanpei College Peking University China Beijing Laboratory of Future Integrated Circuit Technology and Science Peking University China Beijing Advanced Innovation Center for Integrated Circuits China

ISBN: (纸本)9798400706011

With the CMOS technology advancing and the complexity of circuits growing, the demand for analog/mixed-signal design automation tools is increasing quickly. Although some tools have been developed to tackle this challenge, the performance degradation caused by process, voltage, and temperature (PVT) variations has been less considered. This paper presents PVTSizing, an optimization framework for PVT-robust analog circuit synthesis. PVTSizing adopts trust region Bayesian optimization (TuRBO) for high-quality initial datasets and reference points. Multi-task reinforcement learning (RL) is utilized for PVT optimization. Both TuRBO and RL are batch-friendly, allowing parallel sampling of design solutions. Meanwhile, critic-assisted pruning and zoom target metrics are proposed to improve sample efficiency and reduce runtime. In addition, this framework naturally supports sizing over random mismatch. On 4 real-world circuits with TSMC 28/180nm process, PVTSizing achieves 1.9× - 8.8× sample efficiency and 1.6× - 9.8× time efficiency improvements compared to prior sizing tools from both industry and academia. © 2024 Copyright is held by the owner/author(s). Publication rights licensed to ACM.

关键词： Reinforcement learning

来源：评论

学校读者我要写书评

暂无评论

Design of a Simplified 1-Bit Reconfigurable Intelligent Surface for ISM Band Applications

Design of a Simplified 1-Bit Reconfigurable Intelligent Surf...

引用

SBMO/IEEE MTT-S International Conference on Microwave and Optoelectronics (IMOC)

作者： F.H.S. Fonseca Gustavo Morais Gabriel Clemente Cesar Pagan School of Electrical and Computer Engineering (FEEC) University of Campinas (UNICAMP) Campinas SP Brazil Laboratory of Tests (LET) Eldorado Research Institute (ELDORADO) Campinas SP Brazil

Reconfigurable intelligent surfaces are arrays capable of anomalously reflecting electromagnetic waves due to modifying the reflected wave phase controlled by switching devices. This new technology has been studied based on reconfigurable reflect arrays and metasurfaces for the introduction of its use in the Fifth and Sixth generations of mobile networks. So in this work, we design a 1-bit reconfigurable intelligent surface capable of modifying the beamforming reflected on its surface controlled at 2.45 GHz by commercial PIN diodes. Simulations carried out by ANSYS HFSS demonstrated that the structure generated two switching states shifted by one hundred and eighty degrees and modified the reflected beam anomalously in a array of one hundred elements.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Distributed Coordinated Optimal Control for Synchronous Operation of Virtually Coupled Train Set 27

Distributed Coordinated Optimal Control for Synchronous Oper...

引用

27th IEEE International Conference on Intelligent Transportation systems, ITSC 2024

作者： Luo, Xiaolin Wang, Dongming Wang, Wei Ji, Yindong Liu, Hongjie Beijing Jiaotong University State Key Laboratory of Advanced Rail Autonomous Operation Beijing100044 China University of California Department of Electrical and Computer Engineering RiversideCA92521 United States Traffic Control Technology Co. Ltd Beijing100070 China Tsinghua University Department of Automation Beijing100084 China School of Automation and Intelligence Beijing Jiaotong University Beijing100044 China

ISBN: (纸本)9798331505929

Virtual coupling technologies have been widely studied in recent years, due to their merits of flexibility and efficiency. However, to operate a virtually coupled train set (VCTS) as a single train, the synchronous operation is still a critical problem to be addressed, especially in arriving. To this end, we propose a distributed coordinated optimal control (DCOC) approach integrated with distributed optimization and model predictive control. First, we formulate a globally coordinated optimal control problem for VCTS, where the states of units in VCTS are coupled in the cost and constraints. Then, we design a distributed algorithm to solve the global problem, where local problems are decoupled into ones with fewer dimensions. Next, we employ distributed model predictive control to guarantee the satisfaction of safety constraints before the convergence of the distributed algorithm. Finally, experimental results demonstrate that our approach can achieve stable and synchronous operation for VCTS and save by 90% computation time than existing centralized approaches. © 2024 IEEE.

关键词： Predictive control systems

来源：评论

学校读者我要写书评

暂无评论

A Force Estimation Sensor System TestBed for Geological Phenomena Analysis based on Biomimetic 7

A Force Estimation Sensor System TestBed for Geological Phen...

引用

7th South-East Europe Design Automation, computer engineering, computer Networks and Social Media Conference, SEEDA-CECNSM 2022

作者： Kalovrektis, Konstantinos Xenakis, Apostolos Mantalovas, Efthymios Stamoulis, George Psycharis, Sarantos Evelpidou, Niki University of Thessaly Department of Computer Science and Bioinformatics Lamia Greece University of Thessaly Department of Digital Systems Larissa Greece University of Thessaly Department of Physics Lamia Greece University of Thessaly Department of Electrical and Computer Engineering Volos Greece School of Pedagogical and Technological Education Department of Education Athens Greece University of Athens Department of Geology and Geoenvironment Athens Greece

ISBN: (数字)9798350398588

ISBN: (纸本)9798350398588

Our work focuses, on designing and proposing a force estimation sensor system for Geological phenomena data collection and analysis, based on Biomimetic. In this sense, biomimetic term, is used, as proposed by Schmitt in its classical sense, with regatd to the study of nature's methods, processes and mechanisms. In particular, strain gauge sensors with force sensing resistor (FSR), formate a clustering to estimate ground stress and tension levels, as stated by natures' mechanisms in earthworms to detect electrical signals. Our sensor system is proposed as a testbed to estimate geological landslide phenomena. Our experimental results from the data collection system is conducted in LabVIEW. © 2022 IEEE.

关键词： Biomimetics

来源：评论

学校读者我要写书评

暂无评论

H-GCN: A Graph Convolutional Network Accelerator on Versal ACAP Architecture

H-GCN: A Graph Convolutional Network Accelerator on Versal A...

引用

International Conference on Field Programmable Logic and Applications

作者： Chengming Zhang Tong Geng Anqi Guo Jiannan Tian Martin Herbordt Ang Lit Dingwen Tao School of Electrical Engineering and Computer Science Washington State University Pullman WA USA School of Informatics Computing and Engineering Indiana University Bloomington IN USA Mathematics and Computer Science Division Pacific Northwest National Laboratory Richland WA USA Department of Electrical and Computer Engineering University of Rochester Rochester NY USA Department of Electrical and Computer Engineering Boston University Boston MA USA

Graph Neural Networks (GNNs) have drawn tremendous attention due to their unique capability to extend Machine Learning (ML) approaches to applications broadly-defined as having unstructured data, especially graphs. Compared with other Machine Learning (ML) modalities, the acceleration of Graph Neural Networks (GNNs) is more challenging due to the irregularity and heterogeneity derived from graph typologies. Existing efforts, however, have focused mainly on handling graphs' irregularity and have not studied their heterogeneity. To this end we propose H-GCN, a PL (Programmable Logic) and AIE (AI Engine) based hybrid accelerator that leverages the emerging heterogeneity of Xilinx Versal Adaptive Compute Acceleration Platforms (ACAPs) to achieve high-performance GNN inference. In particular, H-GCN partitions each graph into three subgraphs based on its inherent heterogeneity, and processes them using PL and AIE, respectively. To further improve performance, we explore the sparsity support of AIE and develop an efficient density-aware method to automatically map tiles of sparse matrix-matrix multiplication (SpMM) onto the systolic tensor array. Compared with state-of-the-art GCN accelerators, H-GCN achieves, on average, speedups of 1.1~2.3x.

关键词： Tensors Adaptive systems Machine learning computer architecture Systolic arrays Graph neural networks Sparse matrices

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：