一种新的移动代理定位机制

在移动代理系统中,对派发出去的移动代理进行定位是一项十分关键的技术,然而现有的移动代理定位方法中并不存在一种可扩展性的定位机制.本文在现有移动代理定位技术的基础上,提出了一种基于区域代理的移动代理定位机制,并通过IBM的Aglets平台对新的定位机制进行了验证,结果表明新的定位机制能有效地解决网络中由于移动代理定位导致的网络瓶颈问题,有效提高了网络的性能.     

基于净效益最大化的区域水资源优化配置

根据水资源价值、边际机会成本、最优化数学等理论,基于水资源净效益最大化的水资源优化配置思想,以水资源承载力、用水部门生存条件、用水公平性及可持续发展约束等水资源开发利用约束为准则,建立了基于水资源净效益最大化的水资源优化配置模型.将模型应用于南水北调受益区,对该区域2010年丰水年份、枯水年份的水资源量在经济效益最大化的条件下进行优化配置.研究结果为区域水资源优化管理与配置提供了一定的科学依据.     

基于对象函数Petri网的关联区域VOCs危害成因解析

为了找出排放并扩散挥发性有机物(volatile organic compounds, VOCs)到目标区域的污染源,防止目标区域受到进一步的污染,提出基于对象函数Petri网的关联区域VOCs危害成因解析方法。网结构描述了各潜在污染源和受危害目标区域之间的联系,网系统的运行反映了目标区域VOCs危害程度的变化情况,并将危害程度的计算融入到Petri网系统的运行中。通过实际案例研究解析,结果表明:该Petri网模型适用于关联区域VOCs危害成因解析的建模和计算。     

云南少数民族地区不同职业城乡居民体育健身现状及对策研究

采用文献资料、问卷调查、数理统计等方法对相对欠发达的云南少数民族地区不同职业城乡居民体育健身意识、行为现状及影响因素进行调查研究．并对做好少数民族地区不同职业城乡居民的体育健身工作提出了建议．     

Real-time detection of moving objects in video sequences

1 .INTRODUCTIONThe efficient detection of moving objects in video se-quences is a challenging and an i mportant task incomputer vision. It has many applications such assurveillance , video conference , traffic monitor-ing[1 ,2]. Traditionally, the most i mportant task ofsurveillance systemis based on human visual observa-tion,whichis a hard workfor watchmen.Therefore ,the automatic detection of moving objects is requiredinthe surveillance system. Tofacilitate a surveillancesystem,efficien…     

曹、孙集团在江淮地区的战争与建安战争文学

赤壁之战后，天下三分的形势形成，曹、孙、刘三个政治军事集团之间的战争区域发生变化，其中在江淮地区由寿春-舍肥-居巢-濡须构成的水路交通线成为曹、孙作战的主战场。伴随着此时此地的金戈铁马杀声震天，一批独具特色的文学作品得以产生。这些文学作品反映了当时动荡的社会现实，同时具有特定的英雄之气和人文关怀精神，是构成建安文学及其慷慨精神的重要部分。     

佛教在中国汉地文献传播史论

文献传播是佛教在中国汉地实施传播的一种方式。佛教在中国汉地的文献传播方式是按照佛经汉译→汉文经录编撰→汉文大藏经刻印这一历史进程进行传播的，在这一历史进程中三者之间彼此关联，对佛教在中国汉地的成功传播起着重要作用。     

中国乡镇企业规模与效益的区域研究

乡镇企业作为中国农村经济的主体，其规模已成为生存竞争与效益贡献的决定性因素之一．研究表明，中国乡镇企业的规模与效益呈正相关，而且表现出显著的东、中、西地带差异．建立不同类型的乡镇企业集团、开辟不同层次的乡镇企业开发区，是实现乡镇企业规模效益与聚集效益的现实途径．     

Selection of judging indicators for surface morphology of soil crack under different development degrees in Yuanmou arid-hot valley region

Quantification of complicated surface morphology of soil crack is a prerequisite and key to soil crack study. This paper takes soil crack quads in Yuanmou arid-hot valley region as examples, selecting several morphological indicators, and analyzes the soil crack＇s morphological features under various development degrees. By statistic analysis, three quantitative indicators for surface morphology are selected, namely soil crack area density, area weighted mean fractal dimension and connectivity index R, which can not only express the development intensity of soil cracks, but also effectively describe its morphological complexity and connectivity. The research results set a good base for the establishment of soil crack assessment system in Yuanmou arid-hot valley region.     

Imagery Enhancement and Interpretation for Remote Visual Inspection of Aging Civil Infrastructure

In this paper, we describe an image enhancement and interpretation methodology to enhance and recognize surface defects and critical patterns from remote imagery of sewer pipeline inspection. The objective is to provide inspectors and professionals with better tools to allow them to examine the imagery for condition assessment. We present initial results of a collaboration with a robotic company through a case study on computer-assisted processing and interpretation of sewer pipeline inspection imagery. In the mean time, the described enhancement and interpretation methodology can also be applied to sewer pipeline condition assessment in an offline mode, where this methodology can support professionals’ examination of acquired sewer condition imagery.