检索结果-内蒙古大学图书馆

Synaptic Device for Neuromorphic systems Integrating Ferroelectric-Gate Field Effect Transistor and Capacitor 31

Synaptic Device for Neuromorphic Systems Integrating Ferroel...

31st International Workshop on Active-Matrix Flatpanel Displays and Devices: TFT Technologies and FPD Materials, AM-FPD 2024

作者： Sawai, Kazuki Hirano, Taiga Matsuda, Tokiyoshi Kawanishi, Hidenori Miyasako, Takaaki Koh, Sanggyu Hosokura, Tadasu Kimura, Mutsumi Graduate School of Advanced Science and Technology Ryukoku University Seta Shiga Otsu520-2194 Japan Department of Electrical and Electronic Communication Engineering Kindai University Kowakae Higasliiosaka Osaka577-8502 Japan Innovative Materials and Processing Research Center Ryukoku University Seta Shiga Otsu520-2194 Japan Graduate School of Science and Technology Nara Institute of Science and Technology Takayama Ikoma630-0192 Japan Murata Manufacturing Co. Ltd. Nagaokakyo Kyoto617-8555 Japan

ISBN: (纸本)9784991216961

We have proposed a synaptic device for neuromorphic systems that integrates a Ferroelectric-gate Field-Effect Transistor (FeFET) and a capacitor. In this study, spike pulses were applied to this synaptic device to confirm its operation. The results showed that the membrane potential increased while the pulses were applied and was maintained while the pulses were not applied, and that this series of operations could be repeated. In addition, it was confirmed that signal transmission with different synaptic strengths can be achieved by controlling the polarization of the FeFET. Therefore, we believe that the proposed device integrating a FeFET and a capacitor can be used as a synapse in neural networks. © 2024 FTFMD.

关键词： Ferroelectricity

来源：评论

学校读者我要写书评

暂无评论

Smart watering system based on framework of low-bandwidth distributed applications (LBDA) in cloud computing 12th

Smart watering system based on framework of low-bandwidth di...

引用

12th International Conference on Intelligent Networking and Collaborative systems, INCoS 2020

作者： Sirimorok, Nurdiansyah As, Mansur Yoshida, Kaori Köppen, Mario Graduate School of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan Graduate School of Life Science and Systems Engineering Kyushu Institute of Technology Kitakyushu Japan Department of Life Science and Systems Engineering Kyushu Institute of Technology Kitakyushu Japan Department of Creative Informatics Kyushu Institute of Technology Fukuoka Japan

ISBN: (纸本)9783030577957

The estimation of soil moisture content is required for agriculture, mainly to build the irrigation scheduling model. In this study, we present a smart watering system to deal with various factors derived from the stochastic information in the agricultural operational, i.e., air temperature, air humidity, soil moisture, soil temperature, and light intensity. The methodology consists of exploiting the Internet of Things (IoT) using Low-Bandwidth Distributed Applications (LBDA) in cloud computing to integrate the real data sets collected by the several sensor technologies. We conducted experiments for the watering system used two types of soil and different plant. Here, the Long Short Term Memory Networks (LSTMs) approach in deep learning techniques used to build smart decisions concerning watering requirements and deal with heterogeneous information coming from agricultural environments. Results show that our models can effectively improve the prediction accuracy for the watering system over various soil and plants. © Springer Nature Switzerland AG 2021.

关键词： Cloud computing

来源：评论

学校读者我要写书评

暂无评论

Aerodynamic and aeroacoustic impact of the axial distance upon contra-rotating rotors during hovering condition

Aerodynamic and aeroacoustic impact of the axial distance up...

引用

AIAA Aviation and Aeronautics Forum and Exposition, AIAA AVIATION Forum 2023

作者： Li, Pengyu Yang, Yannian Zhang, Haoyu Liu, Yu Li, Qingxi Noack, Prof. Bernd Department of Mechanics and Aerospace Engineering Southern University of Science and Technology Shenzhen Key Laboratory of Complex Aerospace Flows Guangdong Shenzhen518055 China Key Laboratory of Autonomous Systems and Networked Control Ministry of Education Unmanned Aerial Vehicle Systems Engineering Technology Research Center of Guangdong School of Automation Science and Engineering South Guangdong510640 China Department of Mechanics and Aerospace Engineering Southern University of Science and Technology Shenzhen Key Laboratory of Complex Aerospace Flows Guangdong Shenzhen518055 China AVIC General Aircraft Research Institute Zhuhai Shenzhen Key Laboratory of Complex Aerospace Flows Guangdong519040 China School of Mechanical Engineering and Automation Harbin Institute of Technology Guangdong Shenzhen518055 China

ISBN: (数字)9781624107047

ISBN: (纸本)9781624107047

Contra-rotating rotors have the advantage of compactness and redundancy, which can be observed in many unmanned aerial vehicles. One significant installation parameter for the contra-rotating rotors is the axial distance between the upper and lower rotors, which influences both the time-averaged and unsteady loading of the rotors, as well as the aeroacoustic noise emission. Through experimental methods, each rotor is mounted to a six-component balance to study the impact of the axial distance on the two rotors, and an microphone arc-array is used to study the noise emission and directivity in an anechoic chamber. Two rotors are set at the same rotational speed for all axial distance settings. The results indicate that the increase of axial distance is advantageous for the aerodynamic performance increase and noise reduction, especially in the axial range of 0.1 diameter. The recovery of aerodynamic performance is due to the fully developed slipstream which reduces the mutual influence between the two rotors. The noise reduction is mainly due to the reduced velocity fluctuation alleviates the inter actiontonal noise, although the broadband noise becomes larger as the axial distance increases. © 2023, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

关键词： Noise abatement

来源：评论

学校读者我要写书评

暂无评论

Exploring Image Generation for UAV Change Detection

引用

IEEE/CAA Journal of Automatica Sinica 2022年第6期9卷 1061-1072页

作者： Xuan Li Haibin Duan Yonglin Tian Fei-Yue Wang Peng Cheng Laboratory Shenzhen 518000China IEEE State Key Laboratory of Virtual Reality Technology and Systems School of Automation Science and Electrical EngineeringBeihang UniversityBeijing 100083 Department of Automation University of Science and Technology of ChinaHefei 230027 State Key Laboratory for Management and Control of Complex Systems Institute of AutomationChinese Academy of SciencesBeijing 100190China Research Center for Computational Experiments and Parallel Systems Technology National University of Defense TechnologyChangsha 410073China

Change detection(CD)is becoming indispensable for unmanned aerial vehicles(UAVs),especially in the domain of water landing,rescue and ***,even the most advanced models require large amounts of data for model training and ***,sufficient labeled images with different imaging conditions are *** by computer graphics,we present a cloning method to simulate inland-water scene and collect an auto-labeled simulated *** simulated dataset consists of six challenges to test the effects of dynamic background,weather,and noise on change detection ***,we propose an image translation framework that translates simulated images to synthetic *** framework uses shared parameters(encoder and generator)and 22×22 receptive fields(discriminator)to generate realistic synthetic images as model training *** experimental results indicate that:1)different imaging challenges affect the performance of change detection models;2)compared with simulated images,synthetic images can effectively improve the accuracy of supervised models.

关键词： Change detection computer graphics image translation simulated images synthetic images unmanned aerial vehicles(UAVs)

来源：评论

学校读者我要写书评

暂无评论

Cascaded metasurfaces enabling adaptive aberration corrections for focus scanning

引用

Opto-Electronic Advances 2024年第10期7卷 28-39页

作者： Xiaotong Li Xiaodong Cai Chang Liu Yeseul Kim Trevon Badloe Huanhuan Liu Junsuk Rho Shiyi Xiao Key Laboratory of Specialty Fiber Optics and Optical Access Networks Joint International Research Laboratory of Specialty Fiber Optics and Advanced CommunicationShanghai Institute for Advanced Communication and Data ScienceShanghai UniversityShanghai 200240China Department of Mechanical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Graduate School of Artificial Intelligence Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Shenzhen Institute of Advanced Technology Chinese Academy of SciencesShenzhen 518055China Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Electrical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea POSCO-POSTECH-RIST Convergence Research Center for Flat Optics and Metaphotonics Pohang 37673Republic of Korea.

Scanning focused light with corrected aberrations holds great importance in high-precision optical ***,conventional optical systems,relying on additional dynamical correctors to eliminate scanning aberrations,inevitably result in undesired bulkiness and *** this paper,we propose achieving adaptive aberration corrections coordinated with focus scanning by rotating only two cascaded transmissive *** metasurface is carefully designed by searching for optimal phase-profile parameters of three coherently worked phase functions,allowing flexible control of both the longitudinal and lateral focal position to scan on any custom-designed curved *** proof-ofconcept,we engineer and fabricate two all-silicon terahertz meta-devices capable of scanning the focal spot with adaptively corrected *** results demonstrate that the first one dynamically scans the focal spot on a planar surface,achieving an average scanning aberration of 1.18%within the scanning range of±30°.Meanwhile,the second meta-device scans two focal points on a planar surface and a conical surface with 2.5%and 4.6%scanning aberrations,*** work pioneers a breakthrough pathway enabling the development of high-precision yet compact optical devices across various practical domains.

关键词： terahertz focus scanning aberration correction dielectric metasurface

来源：评论

学校读者我要写书评

暂无评论

Simple measures to capture the robustness and the plasticity of soil microbial communities

arXiv

引用

arXiv 2024年

作者： Shimada, Takashi Mise, Kazumori Morino, Kai Otsuka, Shigeto Department of Systems Innovation School of Engineering The University of Tokyo Mathematics and Informatics Center The University of Tokyo Japan Graduate School of Agricultural and Life Sciences The University of Tokyo Graduate School of Science The University of Tokyo Bioproduction Research Institute National Institute of Advanced Industrial Science and Technology Japan Interdisciplinary Graduate School of Engineering Sciences Kyushu University Japan Graduate School of Agricultural and Life Sciences The University of Tokyo Collaborative Research Institute for Innovative Microbiology The University of Tokyo Japan

Soil microbial communities are known to be robust against perturbations such as nutrition inputs, which appears as an obstacle for the soil improvement. On the other hand, its adaptable aspect has been also reported. Here we propose simple measures for these seemingly contradicting features of soil microbial communities, robustness and plasticity, based on the distribution of the populations. The first measure is the similarity in the population balance, i.e. the shape of the distribution function, which is found to show resilience against the nutrition inputs. The other is the similarity in the composition of the species measured by the rank order of the population, which shows an adaptable response during the population balance is recovering. These results clearly show that the soil microbial system is robust (or, homeostatic) in its population balance, while the composition of the species is rather plastic and adaptable. © 2024, CC BY.

关键词： Anthropogenic

来源：评论

学校读者我要写书评

暂无评论

Relational analysis of route searches and transportation IC card use

引用

Transportation Research Procedia 2025年 82卷 957-970页

作者： Mio Hosoe Masashi Kuwano Taku Moriyama Department of Management of Social Systems and Civil Engineering Graduate School of Engineering Tottori University 4-101 Koyama-Minami Tottori 680-8552 Japan Department of Data Science Yokohama City University 22-2 Seto Kanazawa Ward Yokohama Kanagawa 236-0027 Japan

Route search data are saved in public transportation route search systems. These data record the potential travel plans of searchers and are expected to serve as a reliable source of information to predict travel demand. However, route search data merely represent latent demand and their relationship with actual traffic demand is not known. The purpose of this study was to identify the relationship between the number of route searches and the number of actual public transportation users to predict traffic demand using route search data. To achieve this, both route search data and transportation IC card data were analyzed for the Kotoden lines that operate in Kagawa Prefecture, Japan. By adopting an approach that combined bivariate state-space and weighted regression models, we extracted the varying hidden relationships between the two seemingly unrelated data types and modeled the behaviorally related parts. The results revealed a positive correlation between sudden surges in the number of route searches and transportation IC card use.

关键词： route search system transportation IC card bivariate state-space model weighted regression model

来源：评论

学校读者我要写书评

暂无评论

SDFT: Structural Discrete Fourier Transform for Place Recognition and Traversability Analysis

SDFT: Structural Discrete Fourier Transform for Place Recogn...

引用

IEEE/RSJ International Conference on Intelligent Robots and systems (IROS)

作者： Ayumi Umemura Ken Sakurada Masaki Onishi Kazuya Yoshida Department of Aerospace Engineering Space Robotics Lab. (SRL) Graduate School of Engineering Tohoku University Sendai Japan The National Institute of Advanced Industrial Science and Technology (AIST) Tokyo Japan

ISBN: (数字)9798350377705

ISBN: (纸本)9798350377712

The ability to associate the current location with previously visited places is an essential aspect of autonomous ground robots. Unstructured environments such as planetary surfaces pose a significant challenge for robots because their terrain is less distinctive. Meanwhile, traversability must be analyzed simultaneously for safe navigation. In the past, place recognition research has rarely considered traversability analysis despite its significance. This is because the structural information of terrains becomes quickly implicit during the encoding process. This paper provides a method that explicitly addresses both problems: place recognition and traversability analysis. It proposes a discrete Fourier transform (DFT) to represent the frequency components embedded in ground curvature, which underlies both concepts. Our place recognition function demonstrates excellent performance in extensive experiments using challenging planetary & urban datasets while estimating traversability that other approaches find difficult to handle.

关键词： Point cloud compression Accuracy Simultaneous localization and mapping Navigation Discrete Fourier transforms Urban areas Noise Robustness Path planning Surface treatment

来源：评论

学校读者我要写书评

暂无评论

Optimal denial-of-service attack scheduling for remote state estimation via sequential observations

Optimal denial-of-service attack scheduling for remote state...

引用

第43届中国控制会议

作者： Xinxin Yang Yuqing Ni Xiaomeng Chen Shan Chen Fei Liu The Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) School of Internet of Things EngineeringJiangnan University Department of Electronic and Computer Engineering Hong Kong University of Science and Technology

ISBN: (数字)9789887581581

ISBN: (纸本)9798350366907

This study investigates the optimal allocation problem of attack energy in multi-system remote state estimation for Cyber-Physical systems(CPSs). We consider a scenario where there are M independent systems, each equipped with a remote sensor monitoring system. The local estimates from these systems are sent to a remote estimator through a packet loss channel. The objective of the attacker is to degrade the communication channel between the sensors and the remote estimator. Due to capacity limitations, the attacker is restricted to attacking at most one out of M channels. We incorporate interference from other sensors or interference sources into the communication model based on the SINR(Signal-to-Interference-plus-Noise Ratio)model. It should be noted that the same attack power can lead to different packet loss rates in different network *** the attacker's perspective, the goal is to find the optimal attack strategy that maximizes the average estimation error of the remote estimator. Given the uncertainties of wireless network environments, we employ the sequentially-observed Markov decision process(SOMDP) framework to solve the problem. By observing the wireless channels, we gather additional information and incorporate it into the decision-making policy, resulting in better performance than using a standard Markov decision process(MDP). The simulation results support our theoretical findings.

关键词： SOMDP remote state estimation packet loss channel CPS security

来源：评论

学校读者我要写书评

暂无评论

Substrate Surrounding Type Magnetron Sputtering Equipment Comparison of HiPIMS and DCMS Drive

引用

IEEJ Transactions on Fundamentals and Materials 2022年第3期142卷 101-107页

作者： Suematsu, Kota Kousaka, Hiroyuki Furuki, Tatsuya Shimizu, Tetsuhide Ohta, Takayuki Oda, Akinori Graduate School of Natural Science and Technology Gifu University 1-1 Yanagido Gifu501-1193 Japan Faculty of Engineering Gifu University 1-1 Yanagido Gifu501-1193 Japan Graduate School of Systems Design Tokyo Metropolitan University 6-6 Asahigaoka Hino191-0065 Japan Department of Electrical and Electronic Engineering Faculty of Science and Technology Meijo University 1-501 Shiogamaguchi Tempaku-ku Nagoya468-8502 Japan Department of Electrical and Electronic Engineering Chiba Institute of Technology 2-17-1 Tsudanuma Narashino275-0016 Japan

For the hard coating field, we have developed a new physical vapor deposition (PVD) technology for one-piece coating of rod parts, a magnetron sputtering device in which a cylindrical target surrounds the substrate. TiN films formed under HiPIMS and DCMS drive of the device using cylindrical Ti target were compared. It was shown that a high-hardness and dense TiN film, which is characteristic of the HiPIMS method, can be formed using the prototype substrate surrounding type magnetron sputtering device. © 2022 The Institute of Electrical Engineers of Japan.

关键词： Physical vapor deposition

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：