基于腕势控制的智能轮椅无障碍人机交互系统

将人机交互与智能轮椅结合,设计了一种智能轮椅人机交互系统.自行开发了一种腕部控制器,采用模糊推理方法实时检测腕部的弯曲变化,通过腕部的弯曲变化对智能轮椅的运动状态(前进、后退、左转、右转、停止)进行控制,实现了基于腕势控制的智能轮椅无障碍人机交互,实验结果表明基于腕势控制的智能轮椅运动更稳定.     

一种采用智能方法的新型VR人机交互界面

在人机交互的发展历程中,随着虚拟现实技术和智能体技术的出现,开始出现了在生命系统指引下的一种新的基于智能体的虚拟现实(VR)人机交互界面.文章论述了基于多智能体的VR人机交互界面的系统构成及技术特点,给出了一种基于多智能体的实时监控人机界面的体系结构,详细描述了各部分的功能,并设计了1个基于多智能体的工业现场三维监测界面.     

智能仪器人机交互界面的设计

基于51系列单片机的智能仪器人机交互界面的设计,采用128×64点阵液晶显示器和8位独立式键盘,利用单片机C语言编程实现中文菜单式人机交互界面,从而达到提高智能仪器易用性的目的.     

两种交互模式的智能小车集成门户控制系统设计研究

为了使人们从繁琐的劳作中解放出来以及实现对不可达区域的实时远程监控,利用三层门户框架开发技术实现对智能监测小车的监控和命令响应.小车端装有无线接受装置,通过无线发射器与监测电脑相连,监测电脑将接收到的数据传到服务器上,此过程是Java调用DLL本地化的C/S交互模式.在服务器上部署响应控制的Web服务接收,处理小车采集...     

麦卡姆轮式智能小车典型运动分析

文章分析了三轮Δ排列时,麦卡姆轮式智能小车分别作直线运动、旋转运动、曲线运动及双路径运动时各个驱动轮速度变化规律,验证了麦卡姆轮式智能小车平面行走的灵活性;比较了小车结构参数对曲线运动、双路径运动的影响,得到了三轮麦卡姆轮式智能小车运动的规律,为运动控制和小车的整体结构设计提供理论基础.     

基于嵌入式Linux系统的智能小区网络主机的设计

针对传统小区网络主机功能单调、不能很好地实现小区内各终端互连以及人机交互界面不够友好等问题,提出了一种基于嵌入式Linux系统的智能小区网络主机的设计.设计采用32位ARM1176芯片S3C6410,移植linux-2.6.28内核,以SAA7113为视频采集单元,以AK7756为音频采集单元,并采用Qt技术设计了GUI界面.该网络主机具有成本低、安装维护容易、软件功能扩展能力强、用户使用方便的优点.其人机交互界面友好并可通过小区互联网与智能终端机、管理中心机联网来实现所有强大功能,能满足智能小区的要求,具有一定的应用价值.     

基于Profibus-DP与组态王的光伏电站监控系统的设计

光伏电站监控系统存在传输效率低、系统实时性差、人机交互能力弱等缺点.采用Profibus-DP现场总线技术实现现场数据通讯,以组态王Kingview 6.53软件为平台完成监控中心界面开发的光伏电站监控系统设计方案,既保证了现场高速数据传输和监控数据动态显示,又使人机交互界面更加直观,界面操作性增强;实现了数据实时传输、分析处理及报警追溯等功能,具有人机界面良好、可靠性高、可维护性好的特点.     

基于MC9S12XS128MAA单片机的智能小车设计

以MC9S12XS128MAA单片机为核心,设计了智能小车和交通指挥中心系统.智能小车可实现循迹、红绿灯检测、避障、声控及测速功能,并可将速度信息传送给交通指挥中心.主控制器选用MC9S12XS128MAA,车身主体选用三轮车,由两个减速电机分别驱动两个车轮,实现小车速度和转向控制.由红外对管检测黑线而循迹;声音检测模块实现拍声音检测;由避障模块实现两辆智能小车防撞设计;用颜色传感器识别红绿灯;用霍尔传感器检测车轮转数.无线发送模块主要实现小车车轮转数信息的传输.交通指挥中心以STC12C5A60S2为控制核心,配以无线接收模块及12864液晶屏,模拟显示两辆小车或单辆小车的位置.     

Ajax.NET在基于B/S模式的桥梁健康监测系统人机交互界面中的应用

基于B/S模式的桥梁健康监测系统的人机交互界面需要显示大量的实时数据,页面更新频繁.传统的Web应用程序只能做到整体刷新,并且在刷新时会出现"白屏"现象,对数据的监测造成了极大的不便,已经不能满足桥梁健康监测系统的需求.Ajax.NET技术以ASP.NET框架为基础,能够很方便地实现浏览器的局部刷新功能.将Ajax.NET技术运用到桥梁健康监测系统中,可以很方便地实现浏览器的局部刷新,从而实现对桥梁各个数据的实时监测.     

一个智能电子课CAI系统的设计与实现

本系统是一个智能化的电子课计算机辅助教学软件，通过一个友好的人机交互界面实现了任意组题，智能评判和模拟演示等功能．系统具有内容丰富，形式多变和可扩充性强等特点     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to