检索结果-内蒙古大学图书馆

A STUDY ON SEISMIC GROUND MOTION INTENSITY TO ESTIMATE THE DAMAGE RATES OF LOW-AND MIDDLE-RISE REINFORCED CONCRETE BUILDINGS IN THE SHIKOKU REGION

引用

AIJ Journal of Technology and design 2022年第70期28卷 1166-1171页

作者： Yamasaki, Takahiro Miyamoto, Mitsuhiro Hamaoka, Miku Hayashi, Riho Okada, Masatoshi Shikoku Research Institute Inc Japan Program in Arch. Civil and Environmental Eng. Dept. of Eng. and Design Faculty of Eng. and Design Kagawa Univ Japan Dept. of Science for Creative Emergence Graduate School of Science for Creative Emergence Kagawa Univ Japan Dept. of Safety Systems Construction Eng. Graduate School of Eng. Kagawa Univ Japan Former Shikoku Electric Power Company Inc

This study investigated seismic ground motion intensity to estimate the damage rates of low- and middle-rise RC buildings due to various earthquakes. It calculated the vulnerability functions of analytical models of RC buildings for earthquake motions with different spectral characteristics and evaluated the effects of earthquake motions with different spectral characteristics on vulnerability functions. The results confirmed that the average acceleration response spectrum of the periodic band corresponding to the primary natural period of the building can usually estimate the damage rates of low- and middle-rise RC buildings due to various earthquakes. © 2022 Architectural Institute of Japan. All rights reserved.

关键词： Reinforced concrete

来源：评论

学校读者我要写书评

暂无评论

Motion Detection Method of Electrostatic MEMS Resonators Operating in Aqueous Media 6

Motion Detection Method of Electrostatic MEMS Resonators Ope...

引用

6th International Youth Conference on Radio Electronics, Electrical and Power Engineering, REEPE 2024

作者： Hemid, Mohamed Alattar, Basil Ghommem, Mehdi Ahmed, Alaaeldin Abdel-Rahman, Eihab Sabouni, Rana Mechatronics Graduate Program American University of Sharjah Sharjah United Arab Emirates American University of Sharjah Mechanical Engineering Department Sharjah United Arab Emirates Systems Design Engineering University of Waterloo Ontario Canada American University of Sharjah Chemical Engineering Department Sharjah United Arab Emirates

ISBN: (纸本)9798350382891

This paper introduces an experimental method to detect the motion of an electrostatic Micro-Electro-Mechanical Systems (MEMS) resonator in aqueous media. The resonator comprises a micro cantilever beam subject to electrostatic actuation through a side electrode. A Finite Element Method (FEM) model of the resonator is developed to determine the in-plane mode shapes and their natural frequencies in order to facilitate the experimental study. The motion of the resonator lead to variations in its capacitance and induce a current. The developed experiments demonstrate that motion-induced current can be measured and analyzed to detect the motion of the resonator's higher-order modes and can be used in chemical sensing. © 2024 IEEE.

关键词： Electrostatics

来源：评论

学校读者我要写书评

暂无评论

Correction: Tracking the peacocks: a gravity analysis of the Chinese migration system, 1990–2020

引用

The Annals of Regional Science 2025年第1期74卷 1-3页

作者： Wang, Yu Lin, Sainan Carruthers, John I. School of Planning and Public Policy Rutgers University New Brunswick USA School of Urban Design Wuhan University Wuhan China Graduate Program in Regional Science Cornell University Ithaca USA

来源：评论

学校读者我要写书评

暂无评论

Effect of chemical composition and microstructure on the thermal conductivity of Mg-Al-Ca alloys

引用

Keikinzoku/Journal of Japan Institute of Light Metals 2024年第1期74卷 9-13页

作者： Kirimoto, Yuichi Kondo, Natsuki Ito, Mizuki Tsukeda, Tadayoshi Aida, Tetsuo Tabata, Hironobu Kurihara, Hideki Suzuki, Mayumi Department of Nano and Functional Material Science Graduate School of Science and Engineering for Education University of Toyama 3190 Gofuku Toyama-shi Toyama930-8555 Japan School of Sustainable Design Materials and Engineering University of Toyama Toyama-shi Toyama Japan Program of Materials Science and Engineering Studies in Science and Engineering Graduate School of Science and Engineering University of Toyama Toyama-shi Toyama Japan Faculty of Sustainable Design Academic Assembly University of Toyama Toyama-shi Toyama Japan CHUETSU METAL WORKS CO. LTD. Nakaniikawa-gun Toyama Japan Saitama Industrial Technology Center Kawaguchi-shi Saitama Japan Department of Mechanical Systems Engineering Faculty of Engineering Toyama Prefectural University Imizu-shi Toyama Japan

In recent years, the increasing demand for electric vehicles, digital devices such as PCs and smartphones, and renewable energy storage systems has created a need for higher-performance batteries. Accordingly, the thermal conductivity of the case that houses the battery is becoming increasingly important. In this study, compositions with high thermal conductivity and good castability were investigated, focusing on Mg-Al-Ca alloys, and the relationship between the two was examined through thermal conductivity measurements and microstructural observations. As a result, the Mg-6%Al-4%Ca alloy was optimal in terms of castability and thermal conductivity. It was confirmed that a lower Al solid solution capacity and a higher purity of the matrix phase are important to improve the thermal conductivity. It is also suggested that the second phase, platelet Al2Ca, is likely to be recognized and enriched in the matrix, contributing to the improvement of thermal conductivity. The amount of Ca solid solution in the matrix was suggested to be reduced by the enrichment of Al in the matrix. The Ca solid solution in the matrix was found to be less effective in reducing thermal conductivity than the Al solid solution. © 2024 The Japan Institute of Light Metals.

关键词： Magnesium alloys

来源：评论

学校读者我要写书评

暂无评论

Black ice danger area estimation and active speed control research by utilizing road condition sensor

引用

Journal of Institute of Control, Robotics and Systems 2021年第11期27卷 815-823页

作者： Hwang, Daekyu Kim, Bongsang Lee, Kyuho Sim, Hongseok Moon, Heechang Industrial Convergence Interdepartmental Program Autonomous Vehicle･Intelligent Robotics The Graduate School of Hongik University Korea Republic of Mechanical & System Design Engineering Hongik University Korea Republic of

This study was performed to verify the feasibility of using a black ice danger area estimation function based on the wetness data acquired by a piezoelectric based RCS (Road Condition Sensor) through real road tests under each environment and real vehicle conditions. The techniques and system implementation are considered for the prevention of accidents caused by black ice, which primarily causes critical issues in winter every year. System detects the value of wetness on the road during (or right after) rain and snow using an RCS then can estimate the possibility of the presence of black ice on the forward path at low temperatures by combining with those obtained using the ambient temperature sensor and GIS (GPS and map). Accident avoidance and damage minimization effect is expected by securing safe driving conditions through active speed control. © ICROS 2021.

关键词： Ice

来源：评论

学校读者我要写书评

暂无评论

Pedestrian Avoidance Navigation of Mobile Robots Using Monocular Camera in Urban Environments Based on Deep Reinforcement Learning

Pedestrian Avoidance Navigation of Mobile Robots Using Monoc...

引用

Annual Conference of Industrial Electronics Society

作者： Kei Soutome Kazuyuki Morioka Network Design Program Graduate School of Advanced Mathematical Sciences Meiji University Tokyo Japan School of Interdisciplinary Mathematical Sciences Meiji University Tokyo Japan

ISBN: (数字)9781665464543

ISBN: (纸本)9781665464550

This study aims to acquire RL models for mobile robots to avoid pedestrians in unknown urban environments using deep reinforcement learning. Training is performed in urban environments in a virtual world created by the Unity game engine. The mobile robot runs using only monocular camera images and positional information, and does not use any external sensors other than the monocular camera, such as a LiDAR. Not only the current step, but also the last 5 steps are utilized for input states in learning. This is so that the robot can learn and predict the pedestrians’ movement. Since this is a challenging learning task for the robots, curriculum learning, in which the difficulty of the learning task increases step by step, is adapted. As a result of the learning, the robot acquired the ability to reach the goal while avoiding pedestrians, even in an unknown urban environment including pedestrians with unknown color appearances.

关键词： Training Adaptation models Pedestrians Navigation Service robots Urban areas Robot vision systems Deep reinforcement learning Cameras Mobile robots

来源：评论

学校读者我要写书评

暂无评论

Conductive Ceramics: Embedding Electronics in Everyday Ceramic Objects

Conductive Ceramics: Embedding Electronics in Everyday Ceram...

引用

2025 CHI Conference on Human Factors in Computing Systems, CHI EA 2025

作者： Chin, Sam Kim, Keunwook An, Audrey Kuang, Quincy Zhang, Kai MIT Media Lab. CambridgeMA United States Graduate School of Design Harvard University BostonMA United States Ceramics Program Office for the Arts at Harvard Harvard University AllstonMA United States The Clay Studio Center for Innovation in Ceramic Art PhiladelphiaPA United States MIT Media Lab. MIT CambridgeMA United States Graduate School of Design Harvard University CambridgeMA United States

ISBN: (纸本)9798400713958

We present a method for integrating conductive traces into ceramic objects using a silver-based glaze compatible with traditional firing processes. Our glaze combines silver powder with a glass former and xanthan gum, enabling application through standard ceramic techniques while maintaining the durability of conventional ceramics. Through a material-driven experimentation approach, we characterized how glaze composition and post-processing methods affect conductivity and surface quality. We demonstrate this technique through functional prototypes including a temperature-responsive heating vessel, a touch-sensitive musical controller utilizing kintsugi repair, and an interactive marble machine. This work bridges traditional ceramic craft with interactive technology, offering ceramicists a way to incorporate electronic functionality while preserving traditional methods. © 2025 Copyright held by the owner/author(s).

关键词： Glazes

来源：评论

学校读者我要写书评

暂无评论

Effect of Sn addition on electrochemical activity of ribbons of Mg-Al-Ca anode material for rechargeable magnesium batteries fabricated by rapid solidification

引用

Keikinzoku/Journal of Japan Institute of Light Metals 2025年第1期75卷 9-13页

作者： Fukuta, Yoshitaka Kikura, Kensei Tsukeda, Tadayoshi Aida, Tetsuo Tabata, Hironobu Kurihara, Hideki Suzuki, Mayumi Program of Materials Science and Engineering Studies in Science and Engineering Graduate School of Science and Engineering University of Toyama 3190 Gofuku Toyama-shi Toyama930-8555 Japan Graduate School of Science and Engineering University of Toyama Toyama-shi Toyama Japan Faculty of Sustainable Design Academic Assembly University of Toyama Toyama-shi Toyama Japan CHUETSU METAL WORKS CO. LTD. Nakaniikawagun Toyama Japan Saitama Industrial technology Center Kawaguchi-shi Saitama Japan Department of Mechanical Systems Engineering Faculty of Engineering Toyama Prefectural University Imizu-shi Toyama Japan

Magnesium-based batteries are potential candidates for next-generation rechargeable batteries due to the divalent nature of magnesium cations and the natural abundance of magnesium resources. In this study, the electrochemical activity of Mg-6mass%Al-3mass%Ca anodes combined with Sn was investigated. Thin ribbons of the anode specimens were prepared by a single-roll rapid solidification method. The results showed that the electrochemical activity increased upon adding 1 mass% Sn, while it decreased for 3 mass% Sn. Based on the results of an X-ray diffraction analysis, the addition of Sn led to the formation of Mg2Sn and Ca2Sn phases, which increased the lattice distortion. Scanning electron microscopy observations indicated that these secondary phases were homogeneously distributed for 1 mass% Sn addition, while they were coarsely distributed for 3 mass% Sn. © 2025 The Japan Institute of Light Metals.

关键词： X ray diffraction analysis

来源：评论

学校读者我要写书评

暂无评论

Path Planning Method for Mobile Robots in Pedestrian-Friendly Environments Using Drone Bird's-Eye View

Path Planning Method for Mobile Robots in Pedestrian-Friendl...

引用

2025 IEEE/SICE International Symposium on System Integration, SII 2025

作者： Ye, Linghao Chugo, Daisuke Muramatsu, Satoshi Yokota, Sho Hashimoto, Hiroshi Kwansei Gakuin University Graduate School of Science and Technology Hyogo Sanda6691330 Japan Tokai University School of Information Science and Technology Kanagawa Hiratsuka2591292 Japan Toyo University Faculty of Science and Engineering Saitama Kawagoe3508585 Japan Advanced Institute of Industrial Technology Master Program of Innovation for Design and Engineering Shinagawa Tokyo1400011 Japan

ISBN: (纸本)9798331531614

The objective of this paper is to develop a robot system that can transmit the video taken by the drone to the computer in real time, use YOLO to recognize the image of pedestrians, and enable the ground robot to plan the path to avoid pedestrians. External sensors, such as laser range finders (LRF) and CCD cameras, are often used on mobile robots. As we all know, these sensors are susceptible to occlusion. Therefore, even if the mobile robot avoids the pedestrian in front of it, it is likely to collide with other pedestrians that cannot be detected due to occlusion. In this study, we used a drone to shoot videos at high altitudes, transferred the videos to a computer, used YOLO on the computer to perform image recognition of pedestrians around the robot, and passed the recognition results to ROS, which enabled it to plan a path to avoid pedestrians around it. As a result, showed that the videos shot at high altitudes could effectively identify pedestrians around the robot after being recognized by YOLO. © 2025 IEEE.

关键词： Drones

来源：评论

学校读者我要写书评

暂无评论

Motion Measurement Methods for Nonlinear Analysis of Electrostatic MEMS Resonators 20

Motion Measurement Methods for Nonlinear Analysis of Electro...

引用

20th International Conference on Smart Technologies, EUROCON 2023

作者： Ghommem, Mehdi Alattar, Basil Lherbette, Michael Elhady, Alaaeldin Abdel-Rahman, Eihab American University of Sharjah Department of Mechanical Engineering Sharjah26666 United Arab Emirates Mechatronics Graduate Program American University of Sharjah Sharjah26666 United Arab Emirates SmarAct Metrology Rohdenweg Oldenburg Germany Systems Design Engineering University of Waterloo Waterloo Ontario Canada

ISBN: (纸本)9781665463973

In this paper, we compare two measurement techniques to analyze the dynamic response of a MEMS resonator, made of a microcantilever beam, that is electrostatically actuated via a side electrode. The first method is based on a combination of Michelson interferometry, knife-edge analysis, and stroboscopic imaging, and is used to dissect the in-plane and out-of-plane motions of the resonator. The second approach follows the motion-induced current method and is based on a transduction mechanism that converts the movement of the resonator to a current signal. The third harmonic of said current is directly related to the in-plane motion of the resonator. Motion-induced current measurements enable the detection of the nonlinear dynamics associated with the motion of the resonator when actuated with high excitation voltages. The optical and electrical measurements show similar nonlinear features in terms of the location of the cyclic-fold bifurcation in the parameter space and the hysteretic region associated with it. These dynamic features can be exploited for sensing purposes. © 2023 IEEE.

关键词： Interferometry

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：