检索结果-内蒙古大学图书馆

SYNAPSE: An international roadmap to large brain imaging

Physics Reports 2023年第1期999卷 1-60页

作者： Stampfl, Anton P.J. Liu, Zhongdong Hu, Jun Sawada, Kei Takano, H. Kohmura, Yoshiki Ishikawa, Tetsuya Lim, Jae-Hong Je, Jung-Ho Low, Chian-Ming Teo, Alvin Tok, Eng Soon Tan, Tin Wee Ban, Kenneth Libedinsky, Camilo Tan, Francis Chee Kuan Chen, Kuan-Peng Yang, An-Cheng Chuang, Chao-Chun Chen, Nan-Yow Shih, Chi-Tin Lee, Ting-Kuo Yang, De-Nian Lai, Hsu-Chao Shuai, Hong-Han Cheng, Chang-Chieh Ching, Yu-Tai Li, Chia-Wei Charng, Ching-Che Lo, Chung-Chuan Chiang, Ann-Shyn Recur, Benoit Petibois, Cyril Cheng, Chia-Liang Chen, Hsiang-Hsin Yang, Shun-Min Hwu, Yeukuang Rojviriya, Catleya Rugmai, Supagorn Rujirawat, Saroj Margaritondo, Giorgio Australian Nuclear Science and Technology Organization Lucas Heights 2234 NSW Australia Henan university of Technology Zhengzhou China Shanghai Institute of Applied Physics Chinese Academy of Science Shanghai China RIKEN SPring-8 Center Hyogo 679-5148 Japan Pohang Accelerator Laboratory Pohang University of Science and Technology Pohang Gyeongbuk 37673 South Korea Department of Materials Science and Engineering Pohang University of Science and Technology Gyeongbuk Pohang 37673 South Korea Department of Pharmacology Department of Anaesthesia and Healthy Longevity Research Programme Yong Loo Lin School of Medicine National University of Singapore Singapore School of Chemical and Life Sciences Nanyang Polytechnic Singapore eMaGIC-Lab Department of Physics National University of Singapore Singapore National Supercomputing Center Singapore Department of Psychology The N1 Institute for Health National University of Singapore Singapore Institute of Molecular and Cell Biology A*STAR Singapore Department of Anaesthesia National University Hospital National University Health System Singapore National Center for High-Performance Computing Hsinchu Taiwan Department of Physics Tunghai University Taichung Taiwan Department of Physics National Tsing Hua University Hsinchu Taiwan Institute of Information Science Academia Sinica Taipei Taiwan Department of Computer Science National Yang Ming Chiao Tung University Hsinchu Taiwan Department of Electronics and Electrical Engineering National Yang Ming Chiao Tung University Hsinchu Taiwan Information Technology Service Center National Yang Ming Chiao Tung University Hsinchu Taiwan National Yang Ming Chiao Tung University Hsinchu Taiwan Department of Life Science National Tsing Hua University Hsinchu Taiwan Institute of Systems Neuroscience and Brain Research Center National Tsing Hua University Hsinchu Taiwan Institute of Physics Academia Sinica Taipei Taiwan Department of Physics National Dong Hwa University

Since 2020, synchrotron radiation facilities in several Asia-Pacific countries have been collaborating in a major project called “SYNAPSE” (Synchrotrons for Neuroscience: an Asia-Pacific Scientific Enterprise). They use x-ray imaging to attack in a coordinated fashion one of the major issues in modern science: the structure of animal and human brains, including neurons and connections. The objective is to develop Google-like maps also including detailed structural and functional information for selected regions of interest. The sheer mass of data needed for the objective poses huge problems for the acquisition, processing, storage and use of images. In order to complete the task within a reasonable time, the key element of the SYNAPSE strategy is the parallel and coordinated work of several facilities on the same specimens. This article reviews different aspects of the enterprise, including the foundations of synchrotron radiation, coherence and of its role in advanced imaging, electron accelerators, x-ray optics and detectors. This will provide the foundation for an extensive presentation of the different components of SYNAPSE, with an overview of results already obtained within the consortium. © 2022

关键词： Brain mapping Phase contrast Radiology Supercomputing Synchrotron X-rays

来源：评论

学校读者我要写书评

暂无评论

Learning Enriched Illuminants for Cross and Single Sensor Color Constancy

arXiv

引用

arXiv 2022年

作者： Cun, Xiaodong Wang, Zhendong Pun, Chi-Man Liu, Jianzhuang Zhou, Wengang Jia, Xu Li, Houqiang Tencent AI Lab Shenzhen518067 China Department of Computer Science and Information University of Macau 999078 China Department of Electronic Engineering and Information Science University of Science and Technology of China Hefei230026 China Noak's Ark Lab Huawei Technologies Shenzhen518129 China School of Artificial Intelligence Dalian University of Technology Dalian116024 China

Color constancy aims to restore the constant colors of a scene under different illuminants. However, due to the existence of camera spectral sensitivity, the network trained on a certain sensor, cannot work well on others. Also, since the training datasets are collected in certain environments, the diversity of illuminants is limited for complex real world prediction. In this paper, we tackle these problems via two aspects. First, we propose cross-sensor self-supervised training to train the network. In detail, we consider both the general sRGB images and the white-balanced RAW images from current available datasets as the white-balanced agents. Then, we train the network by randomly sampling the artificial illuminants in a sensor-independent manner for scene relighting and supervision. Second, we analyze a previous cascaded framework and present a more compact and accurate model by sharing the backbone parameters with learning attention specifically. Experiments show that our cross-sensor model and single-sensor model outperform other state-of-the-art methods by a large margin on cross and single sensor evaluations, respectively, with only 16% parameters of the previous best model. Copyright © 2022, The Authors. All rights reserved.

关键词： Color

来源：评论

学校读者我要写书评

暂无评论

Aqueous-solution-driven HfGdO_x gate dielectrics for low-voltage-operated α-InGaZnO transistors and inverter circuits

引用

Journal of Materials science & technology 2020年第15期47卷 1-12页

作者： Yongchun Zhang Gang He Wenhao Wang Bing Yang Chong Zhang Yufeng Xia School of Physics and Materials Science Radiation Detection Materials&Devices LabAnhui UniversityHefei 230601China Institute of Physical Science and Information Technology Anhui UniversityHefei 230601China College of Mechanical and Electrical Engineering Chuzhou UniversityChuzhou 239000China

In this work,a non-toxic and environmentally friendly aqueous-solution-based method has been adopted to prepare gadolinium-doped hafnium oxide(HfO2) gate dielectric thin *** adjusting the gadolinium(Gd) doping concentration,the oxygen vacancy content,band offset,interface trap density,and dielectric constant of HfGdOx(HGO) thin films have been *** have confirmed that HGO thin films with Gd doping ratio of 15 at.% have demonstrated appropriate dielectric constant of 27.1 and lower leakage current density of 5.8×10-9 A *** indium-gallium-zinc oxide(α-IGZO) thin film transistors(TFTs) based on HGO thin film(Gd:15 at.%) as gate dielectric layer have exhibited excellent electrical performance,such as larger saturated carrier mobility(μsat) of 20.1 cm2 V-1 S-1,high on/off current ratio(Ion/Ioff) of ~108,smaller sub-threshold swing(SS) of 0.07 V decade-1,and a negligible threshold voltage shift(ΔVTH) of 0.08 V under positive bias stress(PBS) for 7200 *** confirm its potential application in logic circuit,a resistor-loaded inverter based on HGO/α-IGZO TFTs has been constructed.A high voltage gain of 19.8 and stable full swing characteristics have been *** a result,it can be concluded that aqueous-solution-driven HGO dielectrics have potential application in high resolution flat panel displays and ultra-large-scale integrated logic circuits.

关键词： Aqueous-solution-driven Low-voltage-operating HfGdOx gate dielectrics Rare earth element doping α-IGZO TFTs

来源：评论

学校读者我要写书评

暂无评论

Multiplexed stimulated emission depletion nanoscopy(mSTED)for 5-color live-cell long-term imaging of organelle interactome

引用

Opto-Electronic Advances 2024年第7期7卷 17-26页

作者： Yuran Huang Zhimin Zhang Wenli Tao Yunfei Wei Liang Xu Wenwen Gong Jiaqiang Zhou Liangcai Cao Yong Liu Yubing Han Cuifang Kuang Xu Liu State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China Research Center for Intelligent Chips and Devices Zhejiang LabHangzhou 311121China Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China Department of Endocrinology and Metabolism Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhou 310016China Department of Precision Instruments Tsinghua UniversityBeijing 100084China College of electronics and information engineering Shanghai University of Electrical PowerShanghai 200090China ZJU-Hangzhou Global Scientific and Technological Innovation Center Hangzhou 311200China

Stimulated emission depletion microscopy(STED)holds great potential in biological science applications,especially in studying nanoscale subcellular ***,multi-color STED imaging in live-cell remains challenging due to the limited excitation wavelengths and large amount of laser ***,we develop a multiplexed live-cell STED method to observe more structures simultaneously with limited photo-bleaching and *** separating live-cell fluorescent probes with similar spectral properties using phasor analysis,our method enables five-color live-cell STED imaging and reveals long-term interactions between different subcellular *** results here provide an avenue for understanding the complex and delicate interactome of subcellular structures in live-cell.

关键词： optical nanoscopy phasor analysis multicolor live cell imaging

来源：评论

学校读者我要写书评

暂无评论

Advanced manufacturing of dielectric metadevices

引用

Photonics Insights 2024年第2期3卷 31-70页

作者： Wenhong Yang Junxiao Zhou Din Ping Tsai Shumin Xiao Key Lab of Micro-Nano Optoelectronic Information System Ministry of Industry and Information TechnologyGuangdong Provincial Key Laboratory of Semiconductor Optoelectronic Materials and Intelligent Photonic SystemsHarbin Institute of TechnologyShenzhenChina Department of Electrical Engineering City University of Hong KongHong KongChina The State Key Laboratory of Terahertz and Millimeter Waves City University of Hong KongHong KongChina Centre for Biosystems Neuroscienceand NanotechnologyCity University of Hong KongHong KongChina Pengcheng Laboratory ShenzhenChina

Metasurfaces,composed of two-dimensional nanostructures,exhibit remarkable capabilities in shaping wavefronts,encompassing phase,amplitude,and *** unique proficiency heralds a transformative paradigm shift in the domain of next-generation optics and photonics,culminating in the development of flat and ultrathin optical *** noteworthy is the all-dielectric-based metasurface,leveraging materials such as titanium dioxide,silicon,gallium arsenide,and silicon nitride,which finds extensive application in the design and implementation of high-performance optical devices,owing to its notable advantages,including a high refractive index,low ohmic loss,and ***,the remarkable growth in nanofabrication technologies allows for the exploration of new methods in metasurface fabrication,especially through wafer-scale nanofabrication technologies,thereby facilitating the realization of commercial applications for *** review provides a comprehensive overview of the latest advancements in state-of-the-art fabrication technologies in dielectric metasurface *** technologies,including standard nanolithography[e.g.,electron beam lithography(EBL)and focused ion beam(FIB)lithography],advanced nanolithography(e.g.,grayscale and scanning probe lithography),and large-scale nanolithography[e.g.,nanoimprint and deep ultraviolet(DUV)lithography],are utilized to fabricate highresolution,high-aspect-ratio,flexible,multilayer,slanted,and wafer-scale all-dielectric metasurfaces with intricate ***,we conclude with a perspective on current cutting-edge nanofabrication technologies.

关键词： dielectric meta-devices meta-optics metasurface nanofabrication nanotechnology nanophotonics large/waferscale nanofabrication

来源：评论

学校读者我要写书评

暂无评论

Tiny Multi-Agent DRL for Twins Migration in UAV Metaverses: A Multi-Leader Multi-Follower Stackelberg Game Approach

arXiv

引用

arXiv 2024年

作者： Kang, Jiawen Zhong, Yue Xu, Minrui Nie, Jiangtian Wen, Jinbo Du, Hongyang Ye, Dongdong Huang, Xumin Niyato, Dusit Xie, Shengli China 111 Center for Intelligent Batch Manufacturing Based on IoT Technology Guangzhou510006 China Key Laboratory of Intelligent Information Processing and System Integration of IoT Ministry of Education Guangzhou510006 China Guangdong-HongKong-Macao Joint Laboratory for Smart Discrete Manufacturing Guangzhou510006 China Key Laboratory of Intelligent Detection and IoT in Manufacturing Ministry of Education Guangzhou510006 China Guangdong Key Laboratory of IoT Information Technology Guangzhou510006 China The School of Computer Science and Engineering Nanyang Technological University Singapore Singapore The Computer Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing China

The synergy between Unmanned Aerial Vehicles (UAVs) and metaverses is giving rise to an emerging paradigm named UAV metaverses, which create a unified ecosystem that blends physical and virtual spaces, transforming drone interaction and virtual exploration. UAV Twins (UTs), as the digital twins of UAVs that revolutionize UAV applications by making them more immersive, realistic, and informative, are deployed and updated on ground base stations, e.g., RoadSide Units (RSUs), to offer metaverse services for UAV Metaverse Users (UMUs). Due to the dynamic mobility of UAVs and limited communication coverages of RSUs, it is essential to perform real-time UT migration to ensure seamless immersive experiences for UMUs. However, selecting appropriate RSUs and optimizing the required bandwidth is challenging for achieving reliable and efficient UT migration. To address the challenges, we propose a tiny machine learning-based Stackelberg game framework based on pruning techniques for efficient UT migration in UAV metaverses. Specifically, we formulate a multi-leader multi-follower Stackelberg model considering a new immersion metric of UMUs in the utilities of UAVs. Then, we design a Tiny Multi-Agent Deep Reinforcement Learning (Tiny MADRL) algorithm to obtain the tiny networks representing the optimal game solution. Specifically, the actor-critic network leverages the pruning techniques to reduce the number of network parameters and achieve model size and computation reduction, allowing for efficient implementation of Tiny MADRL. Numerical results demonstrate that our proposed schemes have better performance than traditional schemes. Copyright © 2024, The Authors. All rights reserved.

关键词： Reinforcement learning

来源：评论

学校读者我要写书评

暂无评论

Software Development in Startup Companies: The Greenfield Startup Model

arXiv

引用

arXiv 2023年

作者： Giardino, Carmine Paternoster, Nicolò Unterkalmsteiner, Michael Gorschek, Tony Abrahamsson, Pekka The Faculty of Computer Science Free University of Bolzano/Bozen Dominikanerplatz 3 Bozen Bolzano39100 Italy The Software Engineering Research Lab Sweden Blekinge Institute of Technology Campus Gräsvik Karlskrona371 79 Sweden The Department of Computer and Information Science Norwegian University of Science and Technology Ntnu Sem Sælandsvei 7-9 Trondheim7491 Norway

Software startups are newly created companies with no operating history and oriented towards producing cutting-edge products. However, despite the increasing importance of startups in the economy, few scientific studies attempt to address software engineering issues, especially for early-stage startups. If anything, startups need engineering practices of the same level or better than those of larger companies, as their time and resources are more scarce, and one failed project can put them out of business. In this study we aim to improve understanding of the software development strategies employed by startups. We performed this state-of-practice investigation using a grounded theory approach. We packaged the results in the Greenfield Startup Model (GSM), which explains the priority of startups to release the product as quickly as possible. This strategy allows startups to verify product and market fit, and to adjust the product trajectory according to early collected user feedback. The need to shorten time-to-market, by speeding up the development through low-precision engineering activities, is counterbalanced by the need to restructure the product before targeting further growth. The resulting implications of the GSM outline challenges and gaps, pointing out opportunities for future research to develop and validate engineering practices in the startup context. © 2023, CC BY-NC-SA.

关键词： Precision engineering

来源：评论

学校读者我要写书评

暂无评论

A Constrained BA Algorithm for Rate-Distortion and Distortion-Rate Functions

arXiv

引用

arXiv 2023年

作者： Chen, Lingyi Wu, Shitong Ye, Wenhao Wu, Huihui Zhang, Wenyi Wu, Hao Bai, Bo Department of Mathematical Sciences Tsinghua University Beijing100084 China University of Electronic Science and Technology of China Huzhou Zhejiang313000 China Theory Lab Center Research Institute 2012 Labs Huawei Technologies Co. Ltd. Hong Kong Department of Electronic Engineering and Information Science University of Science and Technology of China Anhui Hefei230027 China

The Blahut-Arimoto (BA) algorithm has played a fundamental role in the numerical computation of rate-distortion (RD) functions. This algorithm possesses a desirable monotonic convergence property by alternatively minimizing its Lagrangian with a fixed multiplier. In this paper, we propose a novel modification of the BA algorithm, wherein the multiplier is updated through a one-dimensional root-finding step using a monotonic univariate function, efficiently implemented by Newton's method in each iteration. Consequently, the modified algorithm directly computes the RD function for a given target distortion, without exploring the entire RD curve as in the original BA algorithm. Moreover, this modification presents a versatile framework, applicable to a wide range of problems, including the computation of distortion-rate (DR) functions. Theoretical analysis shows that the outputs of the modified algorithms still converge to the solutions of the RD and DR functions with rate O(1/n), where n is the number of iterations. Additionally, these algorithms provide ϵ-approximation solutions with O _ MNlogN ϵ (1+log|logϵ|) arithmetic operations, where M,N are the sizes of source and reproduced alphabets respectively. Numerical experiments demonstrate that the modified algorithms exhibit significant acceleration compared with the original BA algorithms and showcase commendable performance across classical source distributions such as discretized Gaussian, Laplacian and uniform sources. © 2023, CC BY.

关键词： Constrained optimization

来源：评论

学校读者我要写书评

暂无评论

Data-effective and Accurate EDFA Gain Prediction Black-box Model

Data-effective and Accurate EDFA Gain Prediction Black-box M...

引用

Asia Communications and Photonics Conference and Exhibition (ACP)

作者： Mingming Zhang Yuqi Li Weihao Li Junda Chen Yizhao Chen Ming Tang Wuhan National Lab for Optoelectronics (WNLO) & National Engineering Laboratory for Next Generation Internet Access System School of Optical and Electronic Information Huazhong University of Science and Technology Wuhan China School of Cyber Science and Engineering Huazhong University of Science and Technology Wuhan China

An EDF A gain prediction model is proposed. With a small size of experimental data, the spectral gain root-mean-squared-error of the model is 0.1756 dB.

ISBN: (纸本)9781665410953

An EDF A gain prediction model is proposed. With a small size of experimental data, the spectral gain root-mean-squared-error of the model is 0.1756 dB.

关键词： Asia Predictive models Erbium-doped fiber amplifiers Data models Gain Photonics

来源：评论

学校读者我要写书评

暂无评论

Indoor Positioning and Navigation Using Bluetooth Low Energy and Cloud Service in Healthcare Perspective 2nd

Indoor Positioning and Navigation Using Bluetooth Low Energ...

引用

2nd International Conference on Applied Intelligence and Informatics, AII 2022

作者： Mizan, K. Shayekh Ebne Kaiser, M. Shamim Mamun, Shamim Al Biswas, Milon Zenia, Nusrat Zerin Mahmud, Mufti Adamov, Abzetdin Institute of Information Technology Jahangirnagar University Dhaka Savar1342 Bangladesh Lab Wazed Miah Science Research Centre Jahangirnagar University Dhaka Savar1342 Bangladesh Department of Computer Science and Engineering Bangladesh University of Business and Technology Dhaka Mirpur-021216 Bangladesh Department of Electrical and Software Engineering University of Calgary Calgary Canada Medical Technologies Innovation Facility Nottingham Trent University Clifton NottinghamNG11 8NS United Kingdom ADA University Baku Azerbaijan

ISBN: (纸本)9783031248009

People are able to explore unfamiliar surroundings with more ease due to navigation devices. Users can now incorporate these systems into handheld devices as a result of recent technological advancements that have increased the popularity and number of people using navigation systems. Due to poor reception of Global Positioning system (GPS) signals and a non-line of sight with orbiting satellites, it is more difficult to navigate within a building using GPS signals. Tracking and navigation within a structure can be accomplished by a handheld device (such as a smartphone or wearable) through the use of a wireless interface such as Bluetooth Low Energy (BLE). This type of technology can be used to monitor and guide patients with neurological illnesses, such as Alzheimer’s disease (AD), within the hospital premises. This study describes a system for indoor navigation based on wireless sensors, a mobile health application (mHealth app), and Bluetooth beacons. The study goes into great detail about how the mHealth app interacts with the cloud-based architecture. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.

关键词： Bluetooth

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：