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作者： Shan Xianming Liu Binbin Guo Zhi Shenyang Artillery Acad Dept Elect Reconnaissance 12Pt Times New Roman Shenyang Liaoning Peoples R China Shenyang Artillery Acad Dept Self Propelled Gun Shenyang Liaoning Peoples R China

ISBN: (纸本)9789881824257

There are many difficulties in the operation training of certain type artillery radar, such as training field is limited, radar loss is serious, training outlay is expensive. To resolve the problem, a virtual scene of certain type artillery radar was realized based on VRML and java. The solution to a series of key techniques is discussed such as the framework of virtual scene, building of virtual scene. This paper studies the java technology with the research in depth in the usage of the technology of java realizing interactivity in virtual environment based on VRML and fashion that realizing interactivity of virtual object and user. The results show that the simulation system simulates the operation process of certain type artillery radar livingly and can meet the requirement of real time simulation.

关键词： VRML java applet artillery radar virtual scene EAI 3DSMAX

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Realization of Virtual Scene of Artillery Radar Based on VRML/java

Realization of Virtual Scene of Artillery Radar Based on VRM...

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2010 ETP/IITA Conference on Telecommunication and Information(TEIN 2010)

作者： SHAN Xianming1, LIU Binbin1, GUO Zhi2 1. Department of Electronic Reconnaissance 2. Department of Self-propelled Gun Shenyang Artillery Academy

关键词： VRML java applet artillery radar virtual scene EAI 3DSMAX

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基于SHARC阵列的被动时间反转镜仿真平台研究

基于SHARC阵列的被动时间反转镜仿真平台研究

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作者：方华哈尔滨工程大学

学位级别：硕士

随着水声技术的发展,系统仿真在科学研究领域得到越来越广泛的应用。借助仿真方法,依靠网络技术、数据库技术与DSP技术为时间反转镜被动定位技术的仿真提供有效的实验手段,从而达到资源的共享。为用户提供在任意时间、任意地点(具有计... 详细信息

随着水声技术的发展,系统仿真在科学研究领域得到越来越广泛的应用。借助仿真方法,依靠网络技术、数据库技术与DSP技术为时间反转镜被动定位技术的仿真提供有效的实验手段,从而达到资源的共享。为用户提供在任意时间、任意地点(具有计算机网络)实现跨平台的仿真实现。本文给出了一种基于SHARC阵列的被动时间反转镜仿真平台的开发模型,该模型以数据库为核心,以java applet作为客户端,以ASP动态网页为基础,ADO技术作为中间通信桥梁,将SHARC信号处理机集成于系统服务器中,大大提高了系统仿真的效率。文中对基于SHARC阵列的被动时间反转镜仿真系统的设计与实现进行了深入的论述,重点介绍了如何将SHARC信号处理机与Web服务器有机结合起来,并对系统中采用的关键技术进行了详细说明。仿真平台由系统服务器和SHARC阵列处理机组成。系统服务器中,使用ASP和java applet技术完成Web服务器应用程序构建,使用SQL Server 2000完成数据库服务器构建;SHARC信号处理机中使用VC++6.0完成处理机显控程序开发,使用ADO技术实现其与系统服务器间的数据通信,在SHARC阵列上使用并行加流水的方法实现时间反转镜被动定位技术。从而搭建起基于SHARC阵列的垂直二元阵时间反转镜被动定位技术网络化的仿真平台。本文最后通过对仿真平台进行系统联调,证明了系统设计的可行性、可靠性,操作的便捷性和显示界面的友好。

关键词：时间反转镜 Active Server Page ADO java applet SHARC

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Web环境下的Simulink仿真系统研究与开发

Web环境下的Simulink仿真系统研究与开发

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作者：杨雷大连理工大学

学位级别：硕士

随着计算机网络技术的迅猛发展,仿真系统正由封闭的集中式体系逐步向开放的分布式体系发展。Simulink提供了强大的图形化交互式仿真功能,为控制系统建模、仿真和工业过程模拟提供了有效工具。针对仿真方法和仿真系统分布式、异地化、低... 详细信息

随着计算机网络技术的迅猛发展,仿真系统正由封闭的集中式体系逐步向开放的分布式体系发展。Simulink提供了强大的图形化交互式仿真功能,为控制系统建模、仿真和工业过程模拟提供了有效工具。针对仿真方法和仿真系统分布式、异地化、低成本等新要求以及Simulink缺少网络通讯功能的问题,本文在大连理工大学“辽宁省工业装备先进控制系统重点实验室”仿真与控制一体化平台的基础上,基于对Simulink文件的详细分析,利用***和java applet技术,开发了一种基于Web的Simulink仿真系统. 本文首先对Web环境下的Simulink仿真系统的逻辑结构、功能结构和各功能模块做出了详细的设计。该系统基于三层B/S结构,图形化建模界面借鉴了MVC设计模式,采用java applet实现；Web服务器端利用Visual Studio2005平台,以C#为脚本语言,实现了用户Simulink模型文件的生成,并通过MATLAB引擎接口对该模型文件进行仿真。最后,结合实验室间歇式反应釜夹套温度控制及二阶水槽液位控制的实际应用,利用该系统完成了夹套温度PID控制及二阶水槽液位PID控制的Simulink仿真,通过测试和应用,验证了该系统的有效性。本系统实现了Web技术与Simulink交互式图形仿真功能的结合,不仅解决了实验室仿真服务可移动性和共享性差的问题,而且为实现具有分布式、异地化的新型仿真系统奠定了一定基础,丰富了基于Web仿真的理论和方法,为以后的探索积累了一定的研究经验。

关键词： Web Simulink仿真 MVC模式 P/Invoke java applet

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Comparison of Ligand- and Structure-Based Virtual Screening on the DUD Data Set

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JOURNAL OF CHEMICAL INFORMATION AND MODELING 2009年第2期49卷 209-231页

作者： von Korff, Modest Freyss, Joel Sander, Thomas Actelion Ltd Dept Res Informat CH-4123 Allschwil Switzerland

Several in-house developed descriptors and our in-house docking tool ActDock were compared with virtualscreening on the data set of useful decoys (DUD). The results were compared with the chemical fingerprint descriptor from ChemAxon and with the docking results of the original DUD publication. The DUD is the first published data set providing active molecules, decoys, and references for crystal structures of ligand-target complexes. The DUD was designed for the purpose of evaluating docking programs. It contains 2950 active compounds against a total of 40 target proteins. Furthermore, for every ligand the data set contains 36 structurally dissimilar decoy compounds with similar physicochemical properties. We extracted the ligands from the target proteins to extend the applicability of the data set to include ligand based virtual screening. From the 40 target proteins, 37 contained ligands that we used as query molecules for virtual screening evaluation. With this data set a large comparison was done between four different chemical fingerprints, a topological pharmacophore descriptor, the Flexophore descriptor, and ActDock. The Actelion docking tool relies on a MM2 forcefield and a pharmacophore point interaction statistic for scoring;the details are described in this publication. In terms of enrichment rates the chemical fingerprint descriptors performed better than the Flexophore and the docking tool. After removing molecules chemically similar to the query molecules the Flexophore descriptor outperformed the chemical descriptors and the topological pharmacophore descriptors. With the similarity matrix calculations used in this study it was shown that the Flexophore is well suited to find new chemical entities via "scaffold hopping". The Flexophore descriptor can be explored with a java applet at http://*** in the submenu Tools -> Flexophore. Its usage is free of charge and does not require registration.

关键词： MOLECULAR DESCRIPTORS VALIDATION FEATURES SEARCH SMILES Subject Headings Drug Receptors Berthing Fingerprints Dataset Searches ligands java applet Virtual Smiling Descriptors

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Generating Interactive Learning Objects from Configurable Samples

Generating Interactive Learning Objects from Configurable Sa...

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International Conference on Mobile, Hybrid, and On-Line Learning

作者： Han, Peng Kraemer, Bernd J. Fern Univ Hagen Dept Math & Comp Sci D-58084 Hagen Germany

ISBN: (纸本)9781424433612

Pedagogically well-designed interactive learning objects (LOs) can help students to better understand complex concepts and processes. Such LOs can stimulate higher-level cognitive skills by involving students in interactive learning activities. The design and implementation of interactive LOs is, however, time-consuming and requires special skills. LOs are also often localized and tightly connected with particular educational scenarios, which strongly limits their reuse in different contexts. In this article, we present a methodology of developing and reusing interactive learning objects relying on a heuristic principle. It suggests keeping content and educational context separate at design time and connecting both facets of LOs only at reuse time. We illustrate this principle both for java applets and for interactive Flash animations. Building on top of Adobe's Flex technology, we also suggest to separate the design of generic Flash animation templates from the pedagogically motivated interaction logics. Three simple examples illustrate our method.

关键词： adaption generation reusable learning objects design year configurability flash animation Students flat surfaces java applet

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A Combined Virtual and Remote Laboratory for Microcontroller

A Combined Virtual and Remote Laboratory for Microcontroller

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2nd International Conference on Hybrid Learning and Education

作者： Choi, Kwansun Han, Saeron Kim, Sunghwan Kim, Dongsik Lim, Jongsik Ahn, Dal Jeon, Changwan Soonchunhyang Univ Dept Elect & Commun Engn Asan Choongnam Do South Korea

ISBN: (纸本)9783642036965

This paper describes a web-based combined laboratory for a 8051 microcontroller-related experiment which is, composed of a virtual lab and a real time remote laboratory Authorized users are allowed to have access to both labs Using a web browser. The virtual laboratory cooperates with the remote laboratory to help learners easily understand the principal concept,;and the process of complex experimental operations about the 8051 microcontroller. The former is implemented by java applets and Flash animations, and the latter network technologies Such as web-based compilation and socket communication, which enables remote experimental devices to be controlled by local learners. compensating for the lack of reality in the virtual experiment. The proposed laboratory provides learners with almost all the same advantages as a real lab environment.

关键词： 8051 microcontroller virtual laboratory remote laboratory combined laboratory java applet FLASH animation

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Exploration of Virtual Avatar Technology Based on VRML and java

Exploration of Virtual Avatar Technology Based on VRML and J...

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2nd International Workshop on Knowledge Discovery Data Mining

作者： Duan Xinyu Jiang Pin Duan Xinyu Anyang Normal Univ AYNU Media Res Inst Anyang City Henan Province Peoples R China

ISBN: (纸本)9780769535432

VRML is mainly used to make 3D user interface and to control dynamic display in real-time state. java is responsible for correspondence between Web browser and VRML scene, also for linkage with other information system section. Paper first introduced default VRML's invisible 3D viewer's avatar modeling. Then mainly discussed VRML and java combination, including VRML's deficiency in creating real-time data input and output for peripheral equipment;adopting EAI to create java applet for the purpose of real-time data correspondence between external application program and VRML scene nodes. EAI technology strategies, EAI operation mechanism, EAI four kinds of possible accessing type and its event transmit mechanism etc. contents are detailed formulated. Finally paper described a typical VRML avatar PROTO definition specification and its concrete avatar citation application example.

关键词： eai virtual avatar java applet vrml

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