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世界地震译丛 2019年第6期50卷 573-586页

作者： R.D.Costley G.Galan-Comas C.K.Kirkendall J.E.simms K.K.Hathaway M.W.Parker s.a.ketcham E.W.smith W.R.Folks T.W.Milburn H.M.Wadman 李帛珊(译) 吕春来(校) 不详新疆维吾尔自治区地震局中国地震局地球物理研究所

利用光纤分布式声传感对安装在地面的垂直检波器的响应进行了对比实验。分布式声传感由安装在光纤上的光学询问器组成。光纤是光缆的一部分,安装在0.3~0.76m深的沿海松散沙地环境中。用两个系统同时记录冲击锤产生的地震信号,并直接进... 详细信息

利用光纤分布式声传感对安装在地面的垂直检波器的响应进行了对比实验。分布式声传感由安装在光纤上的光学询问器组成。光纤是光缆的一部分,安装在0.3~0.76m深的沿海松散沙地环境中。用两个系统同时记录冲击锤产生的地震信号,并直接进行比较。在震源和光纤电缆之间进行两种不同排布方式,即垂射和端射的实验。利用面波频谱分析法,对在两种排布方式用两种传感器系统记录的地震信号进行相同处理。所得结果说明了分布式声传感用于近地表地震测量的适用性和局限性。

关键词：光纤分布式频谱分析法声传感检波器面波垂直传感器系统对比实验

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The analysis of lane detection algorithms using histogram shapes and Hough transform

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International Journal of Intelligent Computing and Cybernetics 2015年第3期8卷 262-278页

作者： Mahasak ketcham Thittaporn Ganokratanaa Department of Information Technology Management King Mongkut’s University of TechnologyNorth BangkokThailand Department of Media Technology King Mongkut’s University of Technology ThonburiBangkokThailand

Purpose–The purpose of this paper is to develop a lane detection analysis algorithm by Hough transform and histogram shapes,which can effectively detect the lane markers in various lane road conditions,in driving system for ***/methodology/approach–step 1:receiving image:the developed system is able to acquire images from video *** 2:splitting image:the system analyzes the splitting process of video *** 3:cropping image:specifying the area of interest using crop *** 4:image enhancement:the system conducts the frame to convert RGB color image into grayscale *** 5:converting grayscale image to binary *** 6:segmenting and removing objects:using the opening morphological *** 7:defining the analyzed area within the image using the Hough *** 8:computing Houghline transform:the system operates the defined segment to analyze the Houghline ***–This paper presents the useful solution for lane detection by analyzing histogram shapes and Hough transform algorithms through digital image *** method has tested on video sequences filmed by using a webcam camera to record the road as a video file in a form of *** experimental results show the combination of two algorithms to compare the similarities and differences between histogram and Hough transform algorithm for better lane detection *** performance of the Hough transform is better than the histogram ***/value–This paper proposed two algorithms by comparing the similarities and differences between histogram shapes and Hough transform *** concept of this paper is to analyze between algorithms,provide a process of lane detection and search for the algorithm that has the better lane detection results.

关键词： Image processing Decision making Intelligent transportation Lane detection Driving system Lane departure Histogram shape Hough transform Algorithm Webcam camera Video file

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铝合金在航空母舰上的暴露试验

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轻合金加工技术 1981年第6期 54-59+68+70页

作者： s·J·ketcham 顾孔君

航空铝合金2124、7075和7178在航空母舰甲板上的腐蚀比在沿海地区或工业气氛中受到的腐蚀严重得多。本文是正在进行中的确定铝合金在航空母舰环境中腐蚀性能的研究结果之一(参看表3的试验结果)。为了证明加速试验室条件下研究的数据(这... 详细信息

航空铝合金2124、7075和7178在航空母舰甲板上的腐蚀比在沿海地区或工业气氛中受到的腐蚀严重得多。本文是正在进行中的确定铝合金在航空母舰环境中腐蚀性能的研究结果之一(参看表3的试验结果)。为了证明加速试验室条件下研究的数据(这种试验是比现行使用试验技术更好的一种模拟环境试验),把一些材料暴露在航空母舰甲板上进行试验。本试验将为海军军

关键词：核动力航空母舰暴露试验应力腐蚀兆帕铝合金轻有色金属合金

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Research and Thinking of smart Home Technology

Research and Thinking of Smart Home Technology

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The 2nd International Conference on Latest Computational Technologies(ICLCT’2013);The 2nd International Conference on Biotechnology,Nanotechnology and its applications(ICBNA’2013);The 2nd International Conference on Mechanical,Electronics and Mechatronics Engineering(ICMEME’2013);The 2nd International Conference on Humanities,Economics and Geography(ICHEG’2013);The 2nd International Conference on Chemical,Ecology and Environmental sciences(ICEEs’2013);The 2nd International Conference on Medical,Biological and Pharmaceutical sciences(ICMBPs’2013)

作者： Meensika sripan Xuanxia Lin Ponchan Petchlorlean Mahasak ketcham Department of Media Technology King Mongkut’s University of Technology Thonburi

smart home is emerging technology growing continuously now. It integrates of many new technologies through home networking for improving human’s quality of living, so there have many projects researching in diverse technologies to apply to the smart home system. Accordingly, this paper reviews various topics on smart home technologies from surveying for smart home research projects. The topics is based on the definition of smart home and the details of smart home elements including smart home networks that can be classified into two main types, which are wiring system and wireless system, smart home controllers that use for managing system, the appliances or the smart devices and the challenges of smart home. This paper also offers many interesting projects summarily, so it can be ideas for whoever want to learn this technology.

关键词： smart home smart home network smart home appliances

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Late Mesozoic and Cenozoic thermotectonic evolution along a transect from the north China craton through the Qinling orogen into the Yangtze craton,central China

Late Mesozoic and Cenozoic thermotectonic evolution along a ...

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中国科学院地质与地球物理研究所2006学术年会

作者： Asaf Raza Kyoungwon Min Barry P.Kohn Peter W.Reiners Richard A.ketcham Andrew J.W.Gleadow school of Earth sciences University of MelbourneMelbourneAustralia Department of Geology and Geophysics Yale UniversityNew HavenConnecticutUSA Department of Geological sciences University of Texas at AustinAustinTexasUSA

Cretaceous and Cenozoic reactivation of the Triassic Qinling-Dabie orogen between the north China and Yangtze cratons resulted from the combined effects of Pacific subduction-back-arc extension in east China and collisions in west *** report new apatite fission track and apatite and zircon(U-Th)/He data from east Qinling along a >400-km-long N-s transect from Huashan through the Qinling orogen to *** ages show a general pattern of younging *** major cooling phases are defined by modeling the multiple thermochronologic data *** first phase occurred locally in the North and south Qinling during the late Triassic to early Jurassic,following heating associated with the Triassic Yangtze subduction and exhumation of the Wudang metamorphic core complex on the cratonal edge.A second phase represents regional exhumation between 100 and 60 Ma,coeval with rifting marked by the Late Cretaceous-Eocene(K2-E) red bed deposition in eastern China and possibly indicating a link with Pacific subduction-back-arc extension in eastern China;however,it may also have been superimposed by eastward tectonic escape resulting from the Lhasa-West Burma-Qiangtang-Indochina *** third cooling phase was initiated at 5 Ma exclusively in the north Qinling and in the footwall of the graben-bounding normal fault of the Weihe graben in the Lesser *** suggest the third phase was related to reactivation of the Qinling fault system as a result of eastward tectonic escape imposed by the India-Asia collision at 0 Ma.

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