共查询到20条相似文献,搜索用时 15 毫秒
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The purpose and scope of the human genome project are discussed. Basic biological concepts underlying the project are reviewed. The two processes-logic and experimentation-used to understand DNA sequences are compared, and the process of obtaining the sequence is described. Two problem areas in this collaboration between biologists and computer scientists are examined. They arise from differences in training that can make communication difficult, and nomenclature problems 相似文献
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自动获取人像数据并高精度重建是三维人脸识别的研究热点。针对三维重构缺少成熟算法与有效应用方法的问题,提出了一种基于二维数据的三维打印数字人像快速成型方法。该方法采用二维照相的方法获取人像的正视图、侧视图和俯视图,使用MAYA软件对人像数据进行网格化处理,生成OBJ文件导入PROE生成三维实体,并导入JDpaint实现数控仿真加工,最后将STL文档导入打印机打印出三维人像。实验证明,该方法实现了数据获取、网格划分、曲面重建和快速成型的整个工作流程。 相似文献
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《Engineering & Technology》2008,3(9):20-23
?Imagine a general brainreading device that could reconstruct a picture of a person?s visual experience at any moment in time,? says Dr Jack Gallant, head of the research team and assistant professor in the Department of Psychology at the University of California, Berkeley. 相似文献
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阅读的过程实质上是对语言信息的认知加工过程,它主要包括符号辨认和信息理解与提取两个阶段,而阅读理解又主要涉及自下而上、自上而下和相互作用的认知解码模式.图式知识、词义推测和创造性思维的运用与培养是阅读理解教学不可忽视的重要方面. 相似文献
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高倩 《国外电子测量技术》2008,27(2):49-51
高效的实时打印模块能有效地提高风洞试验的效率。风洞数据采集系统的打印内容包括图、文本和表格,针对使用常用方法打印效率比较低的情况,利用LabWindows/CVI中的Canvas控件设计了高效打印模块。采用这种方法,图、表格导入速度快,定位准确,有效地提高了风洞数据采集系统的打印质量和性能。本设计已在某风洞数据采集系统中投入使用,效果良好。 相似文献
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电能量计量系统测评项目探讨 总被引:2,自引:0,他引:2
随着电力市场的发展,电能量计量系统的重要性更加突出,而电能量计量系统的实用化必须具备足够的准确度、可靠性和全自动化程度.针对这些需求,对电能量计量系统进行测评的一些基本项目加以重点探讨,以期确保系统的准确、可靠和权威性. 相似文献
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Alexander Drobchenko Joni-Kristian Kamarainen Lasse Lensu Jarkko Vartiainen Heikki K?lvi?inen Tuomas Eerola 《Frontiers of Electrical and Electronic Engineering in China》2011,6(2):328-338
Fine and sparse details appear in many quality inspection applications requiring machine vision. Especially on flat surfaces, such as paper or board, the details can be made detectable by oblique illumination. In this study, a general definition of such details is given by defining sufficient statistical properties from histograms. The statistical model allows simulation of data and comparison of methods designed for detail detection. Based on the definition, utilization of the existing thresholding methods is shown to be well motivated. The comparison shows that minimum error thresholding outperforms the other standard methods. Finally, the results are successfully applied to a paper printability inspection application, and the IGT picking assessment, in which small surface defects must be detected. The provided method and measurement system prototype provide automated assessment with results comparable to manual expert evaluations in this laborious task. 相似文献
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本文分析了专业英文文献的特点,探讨了专业英文文献的阅读方法和阅读习惯的养成,并提出在高校学生"专业英语"教学及毕业设计(论文)中连续进行专业英文文献阅读能力的培养,以提高其英文文献阅读水平和专业英语交流能力. 相似文献
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Cinkosky M.J. Fickett J.W. Keen G.M. 《IEEE engineering in medicine and biology magazine》1995,14(6):725-729
Five years have passed since the Genome Sequence DataBase (GSDB, but at that time GenBank) implemented a first version of the Electronic Data Publishing (EDP) paradigm. The database operation is again being completely redesigned, with the overall philosophy of continually measuring and improving the services provided. The three major goals of the redesign are to: (1) bring the implementation of EDP to maturity by supporting on-line editing by the community; (2) facilitate third-party annotation in order to stay up to date with the on-going discovery process involved in fully characterizing existing sequences; and (3) modularize genome data services by designing GSDB to rely on other public databases for data not central to the DNA sequence database. This article describes the design requirements and the new schema 相似文献
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阐述了远程抄表系统的组成结构,概括出了一般远程抄表系统示意图。在远程抄表系统中,通信方式的组合选择是其核心问题之一。通过分析比较,指出了目前比较流行的几种通信方式的优缺点,使其对远程智能抄表项目的实施具有重要的指导意义。 相似文献
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基于VDT阅读的视觉舒适度要求,开展实验室内阅读环境照明现状舒适度主观评价实验,研究照明要素对阅读舒适度的耦合影响。通过集成学习XGBoost算法计算得出垂直于桌面放置的计算机屏幕阅读舒适度的照明影响因素重要性排序为:背景亮度/反射系数(0.33)、工作面照度(0.31)、光源色温(0.27)、屏幕亮度(0.09)。获取了上述4要素的优选值或范围,得到了“最优”、“优选”和“不达标”3档VDT阅读照明环境,进一步论述了基于舒适度需求的VDT阅读环境的照明设计和整改策略,及“照明环境”与“VDT阅读界面”的组合方式。 相似文献
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《被压迫者教育学》是保罗·弗莱雷(Freire Paulo)一生教育理论和教育实践活动的精华。通过对《被压迫者教育学》的框架进行勾勒,来解读保罗·弗莱雷(Freire Paulo)的教育思想。主要从教育核心、教育目的、教育脉搏、教育途径、教育实践五方面进行剖析。 相似文献
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对于老年人来说,阅读是一项很重要的、依赖视觉系统条件的活动,而照明是影响阅读能力和阅读乐趣的因素。本实验试图研究不同种类的阅读照明条件,用社会科学领域里被广泛应用的spss软件进行数据分析,寻找出最适宜于老年人阅读的照明条件。 相似文献
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