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An Empirical Study on Augmented Virtuality Space for Tele-Inspection of Built Environments

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Tsinghua Science and Technology 2008年第S1期13卷 286-291页

作者： xiangyu wang, rui chen Key Centre of design Computing and Cognition, faculty of architecture, design and planning, the university of sydney, sydney nsw 2006, australia [a]Key Centre of design Computing and Cognition faculty of architecture design and planning The university of sydney sydney nsw 2006 australia

This paper describes an empirical study on an augmented virtuality (AV)-based system dedicated for tele-inspection of built environments. This system is regarded as a solution that allows users to experience the real remote built environment without the need of physically stepping into that actual place. Such experience is realized by using AV technology to enrich the virtual counterparts of the place with captured real images from the real space. Those integrated into the AV environment are real photos that represent key landmarks/features of the real place, live video streams of on-site crew, and 3D virtual design geome-tries. The focus of this paper is the implementation and evaluation of the AV system in its current state as compared with traditional photo-based methods. Results from this preliminary empirical study show that the AV system achieves good overall satisfaction, although it involves certain general usability issues.

关键词： augmented virtuality (AV) design usability remote inspection

Observation of robust anisotropy in WS_(2)/BP heterostructures

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Nano Research 2024年第7期17卷 6749-6756页

作者： Xinran Li Xing Xie Biao Wu Junying chen Shaofei Li Jun He Zongwen Liu Jian-Tao wang Yanping Liu Institute of Quantum Physics School of PhysicsCentral South University932 South Lushan RoadChangsha 410083China State Key lab.ratory of Precision Manufacturing for Extreme Service Performance Central South University932 South Lushan RoadChangsha 410083China School of Chemical and Biomolecular Engineering The University of SydneyNSW 2006Australia The university of sydney Nano Institute The University of SydneyNSW 2006Australia Beijing National lab.ratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Songshan Lake Materials lab.ratory Dongguan 523808China Shenzhen Research Institute of Central South university Shenzhen 518000China

Two-dimensional(2D)anisotropic materials have garnered significant attention in the realm of anisotropic optoelectronic devices due to their remarkable electrical,optical,thermal,and mechanical *** extensive research has delved into the optical and electrical characteristics of these materials,there remains a need for further exploration to identify novel materials and structures capable of fulfilling device requirements under various ***,we employ heterojunction interface engineering with black phosphorus(BP)to disrupt the C_(3) rotational symmetry of monolayer WS_(2).The resulting WS_(2)/BP heterostructure exhibits pronounced anisotropy in exciton emissions,with a measured anisotropic ratio of 1.84 for neutral *** a comprehensive analysis of magnetic-field-dependent and temperature-evolution photoluminescence spectra,we discern varying trends in the polarization ratio,notably observing a substantial anisotropy ratio of 1.94 at a temperature of 1.6 K and a magnetic field of 9 *** dynamic behavior is attributed to the susceptibility of the WS_(2)/BP heterostructure interface strain to fluctuations in magnetic fields and *** findings provide valuable insights into the design of anisotropic optoelectronic devices capable of adaptation to a range of magnetic fields and temperatures,thereby advancing the frontier of material-driven device engineering.

关键词： two-dimensional materials in-plane anisotropy black phosphorus heterojunctions optoelectronic devices photoluminescence spectra

A Seat design Method Driven by Human Dimensions

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A Seat Design Method Driven by Human Dimensions

A SEAT design METHOD DRIVEN BY HUMAN DIMENSIONS

The 2006 International Conference on Industrial design & The 11th China Industrial design Annual Meeting

作者： Xu Yingxin Liu Xiaojian Sun Shouqian (Digital Art & design lab.Zhejiang university)

Aiming at the fast design and realizing a seat design system developed on ergonomical dimension's driven, the seat system is developed through analying the relations of seat design parameter and sitting human body demension and building the database for human body demension data and establishing parameter's human body model and the second development for UGNX software. The system can improve the design speed of the user and the veracity of the design result. It can also enhance function of the computer aided design effectively.

关键词： seat design, ergonomics, Unigraphics

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A SEAT DESIGN METHOD DRIVEN BY HUMAN DIMENSIONS

MATlab.单机型实时仿真系统的扩展与讨论

2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： XU Yingxin, LIU Xiaojian, SUNShouqian Digital Art & design lab. Zhejiang university, China

Aiming at the fast design and realizing a seat design system developed on ergonomical dimension’s driven, the seat system is developed through analying the relations of seat design parameter and sitti

关键词： Seat design ergonomics unigraphics.

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计算机工程与应用 2009年第34期45卷 56-58,62页

作者：苗立东山东理工大学特种车辆设计与控制研究所山东淄博255091

MATlab.的实时视窗目标工具箱能够在一台运行Windows操作系统的微机上执行实时任务,可用于对自动控制系统进行实时仿真分析,但是此功能受限于其驱动程序。针对此问题,讨论了开发实时视窗目标工具箱驱动程序的关键问题,包括寄存器的访... 详细信息

MATlab.的实时视窗目标工具箱能够在一台运行Windows操作系统的微机上执行实时任务,可用于对自动控制系统进行实时仿真分析,但是此功能受限于其驱动程序。针对此问题,讨论了开发实时视窗目标工具箱驱动程序的关键问题,包括寄存器的访问和程序调试,提出了两种方法:(1)在实时视窗目标环境下借助于驱动程序的输出函数mdlOutputs;(2)利用xPC目标工具箱环境。在三台计算机上进行了不同的实验,实验结果表明所提出的方法能够正确地显示中间结果;采用开发的PCI-8360A模拟量输入驱动程序采集15路模拟量信号,结果表明实时视窗目标驱动程序在一定条件下可以和xPC目标驱动程序兼容,实时视窗目标的采样时间为0.18ms要小于xPC目标的采样时间0.3ms,这为实时视窗目标的扩展应用提供了新的思路。

关键词：实时仿真实时视窗目标 xPC目标驱动程序系统函数

A humidity resistant and high performance triboelectric nanogenerator enabled by vortex-induced vibration for scavenging wind energy

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Nano Research 2022年第4期15卷 3246-3253页

作者： Yan wang Tianyu chen Shuowen Sun xiangyu Liu Zhiyuan Hu Zhenhui Lian Long Liu Qiongfeng Shi Hao wang Jianchun Mi Tongming Zhou chengkuo Lee Minyi Xu Dalian Key lab.of Marine Micro/Nano Energy and Self-powered System Marine Engineering CollegeDalian Maritime UniversityDalian 116026China Center for Intelligent Sensors and MEMS(CISM) National University of Singapore Engineering Drive 3 Singapore 117576Singapore3 College of EngineeringPeking UniversityBeijing 100871China School of Civil Environmental and Mining EngineeringThe University of Western AustraliaWA 6009Australia

Wind energy is a promising renewable energy source for a low-carbon *** study is to develop a fully packaged vortexinduced vibration triboelectric nanogenerator(VIV-TENG)for scavenging wind *** VIV-TENG consists of a wind vane,internal power generation unit,an external frame,four springs,a square cylinder and a circular *** internal power generation unit consists of polytetrafluoroethylene(PTFE)balls,a honeycomb frame and two copper *** from most of the previous wind energy harvesting TENGs,the bouncing PTFE balls are fully packaged in the square *** distinct design separates the process of contact electrification from the external environment,and at the same time avoids the frictional wear of the ordinary wind energy harvesting *** corresponding VIV parameters are investigated to evaluate their influence on the vibration behaviors and the energy *** state of the VIV-TENG corresponds to the high output performance from the *** distinct,robust structure ensures the full-packaged VIV-TENG can harvest wind energy from arbitrary directions and even in undesirable weather *** study proposes a novel TENG configuration for harvesting wind energy and the VIV-TENG proves promising powering micro-electro-mechanical appliances.

关键词： vortex-induced vibration wind energy triboelectric nanogenerator self-powered

design of Time-constrained Guidance Laws via Virtual Leader Approach

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Chinese Journal of Aeronautics 2010年第1期23卷 103-108页

作者： Zhao Shiyu Zhou rui Wei chen Ding Quanxin School of Automation Science and Electrical Engineering Beijing University of Aeronautics and Astronautics Beijing 100191 China National Defense Key lab.of Fire Control Technique Luoyang Institute of Electro-optical Equipment of A VIC Luoyang 471009 China

Guidance problems with flight time constraints are considered in this article. A new virtual leader scheme is used for design of guidance laws with time constraints. The core idea of this scheme is to adopt a virtual leader for real missiles to convert a guidance problem with time constraints to a nonlinear tracking problem,thereby making it possible to settle the problem with a variety of control methods. A novel time-constrained guidance （TCG） law, which can control the flight time of missiles to a prescribed time,is designed by using the virtual leader scheme and stability method. The TCG law is a combination of the well-known proportional navigation guidance（PNG） law and the feedback of flight time error. What＇ s more, this law is free of singularities and hence yields better performances in comparison with optimal guidance laws with time constraints. Nonlinear simulations demonstrate the effectiveness of the proposed law.

关键词： guidance missiles salvo attack time constraint virtual leader

A bio-inspired and self-powered triboelectric tactile sensor for underwater vehicle perception

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npj Flexible Electronics 2022年第1期6卷 252-261页

作者： Peng Xu Jianhua Liu xiangyu Liu Xinyu wang Jiaxi Zheng Siyuan wang Tianyu chen Hao wang Chuan wang Xianping Fu Guangming Xie Jin Tao Minyi Xu Dalian Key lab.ratory of Marine Micro/Nano Energy and Self-powered Systems Marine Engineering CollegeDalian Maritime UniversityDalian 116026China Transportation Engineering College Dalian Maritime UniversityDalian 116026China School of Information Science and Technology Dalian Maritime UniversityDalian 116026China Intelligent Biomimetic design lab College of EngineeringPeking UniversityBeijing 100871China College of Artificial Intelligence Nankai UniversiyTianjin 300350China Silo AI Helsinki 00100Finland

Marine mammals relying on tactile perception for hunting are able to achieve a remarkably high prey capture rate without visual or acoustic ***,a self-powered triboelectric palm-like tactile sensor(TPTS)is designed to build a tactile perceptual system for underwater *** is enabled by a three-dimensional structure that mimics the leathery,granular texture in the palms of sea otters,whose inner neural architecture provides additional clues indicating the importance of tactile *** the assistance of palm structure and triboelectric nanogenerator technology,the proposed TPTS has the ability to detect and distinguish normal and shear external load in real-time and approximate the external stimulation area,especially not affected by the touch frequency,that is,it can maintain stable performance under high-frequency *** results show that the TPTS is a promising tool for integration into grippers mounted on underwater vehicles to complete numerous underwater tasks.

关键词： underwater mounted maintain

The Studies on Energy Control of Protocols in Wireless Sensor Networks

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The Studies on Energy Control of Protocols in Wireless Senso...