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1.
以第15、16届世锦赛女排前10名球队队员为对象,运用文献资料调查和数理统计等方法,对其年龄、身体形态和网上高度等部分非技术指标进行统计分析.结果显示:两届世锦赛女排队员的年龄、身体形态、网上高度的指标均值动态变化无显著差异,但高大队员的比率有增加的态势;中国队年龄指标低于平均值,但在身体形态和网上高度指标上均显示出世界一流强队的水平.  相似文献   

2.
研究了对机器人足球中的非控球队员同控球队员的协作问题.机器人根据当前状态下机器人和球的位置信息决定目标位置.对目标位置的确定进行了Q学习,对于场地的划分和角色的分配,采用了模糊理论,并对学习结果进行了仿真试验.  相似文献   

3.
介绍了网上教学支持系统的主要功能模块,提出了网上教学支持系统实施过程中网上考试子系统、网上实验管理智能化子系统、网上作业子系统和网上答疑子系统等需要考虑的几个关键问题.  相似文献   

4.
本文通过对非网络版软件在单机上运行环境分析,找出了一磁调整此类软件使其在Novell网上运行的方法,并提出了非网络软件在Novell网上运行环境的设计的观点,具有较大的意义。  相似文献   

5.
网上图书系统的设计与实现   总被引:1,自引:0,他引:1  
介绍如何利用ASP技术来实现网上图书系统.网上图书系统是为图书公司开发的系统,应用B/S的开发模型,其后台应用IIS5.0 SQL Server2000的服务器平台,前台ASP开发语言.介绍了网上图书系统的主要功能以及设计中关键部分的实现.  相似文献   

6.
为了实现白度测量仪小型化、智能化,提高其测量精度和稳定性,根据d/o照明观测几何条件和单光谱光度测量法,采用单片机89C51设计了一种将测量样品与标准白板比对的新型白度测量系统.该系统可自动完成对样品的(荧光)白度、明度、(不)透明度、光散射(吸收)系数等物理量的测量.经过对原理样机的最终测试表明,该白度测试系统设计合理,性能及技术指标等基本达到设计要求.最后,提出了进一步改进的方向.  相似文献   

7.
本文重点对正常婴儿以及正常幼儿和患儿、老年人进行食用婴儿配方奶的人体观察试验。结果表明:正常婴儿食用后,其身高增长值接近母乳而明显高于牛乳;体重增长值与母乳、牛乳无显著差异;预防佝偻病和抗病能力优于母乳和牛乳。正常幼儿食用后,其身高、体重增长值明显高于牛乳,而且对幼儿常见的佝偻病、缺铁性贫血、低锌、上感等症状有一定的治疗和预防作用。患儿食用后,在呕吐、腹胀、腹泻等方面均比食用前明显好转,老年人食用后在提高食欲、血红蛋白水平,防止便秘、减轻头迷眼花症状以及提高免疫功能等方面,也均优于牛乳.  相似文献   

8.
通过对电缆分线器技术指标的分析,采用数字调频编码的方法,设计了一种无需使用参考地线,就可以对电缆进行自动标识和检测的仪器.实测结果表明,该仪器能满足各项技术指标.  相似文献   

9.
江苏沭阳万成橡胶有限公司研制的“高性能再生橡胶”通过鉴定.其综合技术指标高于国内外同类产品,具有国际先进水平。  相似文献   

10.
在基于ASP网上教学系统的开发过程中,需要处理诸如学生学习情况监控、Office Automation(Office自动化)、系统安全及权限分配等众多的技术问题.对上述3类问题提出了解决的方案,并应用到现有的网上教学系统中.  相似文献   

11.
水下矿床是难采矿体的一个重要方面,针对某矿山的实际情况,深入分析了该矿的地质资料后,在查阅相关文献的基础上,建立了该矿导水裂隙带高度的粗糙集—神经网络预测模型.在比较了粗糙集—神经网络预测结果、地质详查报告提供的结果及采用经验公式计算的结果后,认为神经网络预测的结果较准确,其结论在该矿水下开采设计中可以采用.在预测的导水裂隙带高度基础上,参考采矿设计手册中的经验公式,并类比其它矿山水下开采的情况,计算出了防水安全岩柱的厚度.此项研究为该矿重新编制开采设计方案和安全专篇提供了依据,同时为矿山安全管理提供了参考.  相似文献   

12.
随着社会经济的发展,我国的城镇化进程不断加速,与此同时产生的生态破坏、地质灾害、环境污染等生态地质环境问题也日益突出.因此,生态地质环境承载力的研究对一个地区城镇化及经济的发展都有一定的指导意义.以宁夏沿黄经济带为研究区,结合城市经济区生态地质环境的普遍情况,把研究区的生态地质环境承载力评价指标体系分为3个子系统,即:地质环境子系统、生态环境子系统和社会环境子系统.根据研究区特点对3个子系统内的各个指标进行筛选,构建指标评价体系,并对其影响程度进行分析打分.然后,利用GIS空间叠加技术,对宁夏沿黄经济区的生态地质环境承载力进行分级.此区域共分为3类:Ⅰ类为适宜建设区,Ⅱ类为适度控制建设区,Ⅲ类为中度控制建设区.  相似文献   

13.
Given sustaining exploration,the eastern zone of the Sulige gas field may soon become a key area of exploitation.In order to explore its genesis,types and distribution of the reservoir sandstones in the eastern zone of this gas field,we focused in our study on the provenance and detailed sedimentary facies of sandstone of the He8(the eighth part of the Shihezi formation,Permian system)and Shanxi1(the first part of the Shanxi formation,Permian system)members,based on core observations,analyses in petrography,granularity and logging.The results show that:1)the sandstone provenance of Shanxi 1 and He8 in the eastern zone of the Sulige gas field is from the north of the Ordos Basin,characterized by dual directions from the north and northeast.2)The He8and Shanxi1 members were deposited in a fluvial-delta sedimentary system.The He8 was mainly deposited in braided rivers,including braided channels,channel bars,levee and floodplain sub-environments,whereas the Shanxi1 Member was deposited in braided rivers and deltas,including braided channels,channel bars,floodplains,tributaries and inter-tributary sub-environments.3)Sedimentary facies bands migrated in drastic fashion towards the basin from the Shanxi1 to the He8 Member.Base levels of sedimentation generally present a trend of small increases in-amplitude,large decreasing amplitudes and slow and gradual Increases.4)The continuity of the reservoir sandbodies along the source direction is better than that perpendicular to the direction.Compared with Shanxi 1,both dimensions and continuity of the sandbodies in He8 are better from which we conclude that it is the most favorable part of the reservoir.  相似文献   

14.
Given sustaining exploration, the eastern zone of the Sulige gas field may soon become a key area of exploitation. In order to explore its genesis, types and distribution of the reservoir sandstones in the eastern zone of this gas field, we focused in our study on the provenance and detailed sedimentary facies of sandstone of the He8 (the eighth part of the Shihezi formation, Permian system) and Shanxi1 (the first part of the Shanxi formation, Permian system) members, based on core observations, analyses in petrography, granularity and logging. The results show that: 1) the sandstone provenance of Shanxi1 and He8 in the eastern zone of the Sulige gas field is from the north of the Ordos Basin, characterized by dual directions from the north and northeast. 2) The He8 and Shanxi1 members were deposited in a fluvial-delta sedimentary system. The He8 was mainly deposited in braided rivers, in-cluding braided channels, channel bars, levee and floodplain sub-environments, whereas the Shanxi1 Member was deposited in braided rivers and deltas, including braided channels, channel bars, floodplains, tributaries and inter-tributary sub-environments. 3) Sedimentary facies bands migrated in drastic fashion towards the basin from the Shanxi1 to the He8 Member. Base levels of sedi-mentation generally present a trend of small increases in-amplitude, large decreasing amplitudes and slow and gradual Increases. 4) The continuity of the reservoir sandbodies along the source direction is better than that perpendicular to the direction. Compared with Shanxi1, both dimensions and continuity of the sandbodies in He8 are better from which we conclude that it is the most fa-vorable part of the reservoir.  相似文献   

15.
煤层开采导致覆岩产生移动变形破坏,描述覆岩破坏影响程度的导水裂隙带发育高度是评价顶板是否发生突水溃砂等灾害事故的重要指标之一,因此对影响导水裂隙带发育高度的采高、工作面几何参数、覆岩岩性及岩层结构等主要因素进行分析,利用模糊数学方法将非线性问题转换成线性问题进行计算,获得五沟煤矿10煤开采导水裂隙带发育高度预测公式,为五沟煤矿含水层下10煤层的安全开采提供指导。  相似文献   

16.
本文以杆件截面积、网架高度和支承点位置为设计变量,以结构重量为目标函数研究了四柱支承网架支点位置的优选.通过大量计算,文末还给出了四柱支承网架的最优悬挑长度、最优高度等参数.  相似文献   

17.
桃花金矿床位于苍房-胡家院加里东期石英脉型金成矿带上,区域性的瓦穴子-鸭河口断裂从矿区中部通过,是复经加里东-燕山期的历次地质事件形成的由北向南逆冲推覆构造,含金石英脉分布在该断裂以北,数量多,密度大,其走向近南北,受次级南北向断裂控制,石英脉中金的富集与黄铁矿含量成正相关关系,与烟灰色硅化及碳酸盐化关系密切,蚀变带宽,蚀变强烈时金品位较高,宽坪群地层为金的主要矿源层之一,区域性的瓦穴子-鸭河口断裂与矿区北部-韧性剪切带的叠加部位是成矿的有利地带,岩浆活动除为金矿化提供了热源和有利的物化环境之外,其本身也为成矿提供了部分物质来源。  相似文献   

18.
区域中心城市建设在区域经济发展中具有重要作用。运用城市中心模型、可达性模型、引力模型研究苏北中心城市经济空间格局及其变化。结果表明:苏北主要中心城市之间经济联系不断增强;淮安市建成苏北地区重要中心城市具有较为明显的区位优势,但是,区位优势仍低于徐州市;淮安市的区域可达性高于苏北另一个中心城市——徐州市。淮安市建成苏北重要中心城市优势与劣势并存,淮安市要真正成为苏北重要中心城市必须树立地理中心意识,尽快构建苏北交通中心平台、苏北文化中心平台、苏北物流中心平台。  相似文献   

19.
In order to enter effective parameters of rock mass in a numerical model, the relationships between mechanical parameters of rock and rock mass were obtained by an inversion method and an orthogonal test, given our measurements of the maximum heights of two failure zones in the Longdong coal mine.Using the maximum heights of the caving zone and the water-conducting fractured zone as test indices the modulus of elasticity, the Poisson ratio, cohesion and tension strength as test factors and different values of reduction enhancement factors as test levels, an orthogonal test was designed to obtain an optimum simulation scheme. From the analysis of different values of reduction enhancement factors which affect the test indices, an optimum factor combination for modification of parameters could be inferred. By using modified parameters in our numerical simulation, the maximum heights oftbe caving zone and the water-conducting fractured zone in the extensive Xiyi area were determined as 15.06 m and 36.92 m. These values were almost the same as those obtained by similar material simulation (8.5 m and 37.0 m) and empirical prediction (8.4 m and 34.4 m). These results indicate that the modification of parameters is a rational method.  相似文献   

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