Assessment of Proper Bonding Methods and Mechanical Characterization FPGA CQFPs.

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[文献类型]:科技报告
[标题]:Assessment of Proper Bonding Methods and Mechanical Characterization FPGA CQFPs.
[作者]:M. C. Davis;
[机构]:NASA Goddard Space Flight Center*NASA Goddard Space Flight Center
[关键词]:circuit boards,field-programmable gate arrays,semiconductor devices,ceramics,fractures(materials),beam leads,bonding,structural vibration,failure analysis,supports, vibration tests, flight tests, soldered joints,
[出版年份]:2008
[报告时间]:15 Sep 2008,
[页码]:22p
[馆藏索取号]:N20080041057
[总页数]:22


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[文献类型]:科技报告
[标题]:National Dam Safety Program. Lake Jackson Dam (VA 15306),Potomac River Basin, Occoquan River,Prince William County,Virginia. Phase I Inspection Report.
[作者]:strawsnyder, h. e.
[机构]:Army Engineering District Norfolk VA
[关键词]:dams,inspection,virginia,safety,maintenance,flood control,reservoirs,visual inspection,water supplies,seepage,concrete,deterioration,national dam safety program,lake jackson dam,spillways,ntisdodxa
[出版年份]:1979
[报告时间]:Jun 78,
[页码]:32p
[馆藏索取号]:AD-A063582
[总页数]:34


[唯一标识符]:10.1117/12.919842
[文献来源]:国际光学工程学会数据库
[文献类型]:科技会议
[标题]:A study based on image processing for the bridge crack measurement
[作者]:Xiaofei Zhou;Xiaowei Liu;Guansheng Yin;
[文摘]:This paper gives a non-destructive and non-contact inspection way based on image processing whichis introduced to detect bridge cracks. System architecture is also introduced and key algorithms incrack image processing is studied. These key algorithms are: image gray scaling, imageenhancement, image strengthing, gap survey and so on. In the end such method is used to measureactual gap and the reliability of such method on bridge inspection has been verified with the results.
[卷]:8335
[会议名称]:2012 International Workshop on Image Processing and Optical Engineering
[会议时间]:20120110
[总页数]:9