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Automatic prediction of time to failure of open pit mine slopes based on radar monit.r.ng and inverse velocity method

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Int.r.ational Journal of Mining Science and technology 2014年第2期24卷 275-280页

作者： Osasan K.S. Stacey t.r. School of Mining Engineering Faculty of Engineering and Built EnvironmentUniversity of the Witwatersrand

radar slope monit.r.ng is now widely used across the world, for example, the slope stability radar(SSr)and the movement and surveying radar(MSr) are currently in use in many mines around the ***, to fully realize the effectiveness of this radar in notifying mine personnel of an impending slope failure, a method that can confidently predict the time of failure is necessary. the model developed in this study is based on the inverse velocity method pioneered by Fukuzono in 1985. the model named the slope failure prediction model(SFPM) was validated with the displacement data from two slope failures monit.r.d with the MSr. the model was found to be very effective in predicting the time to failure while providing adequate evacuation time once the progressive displacement stage is reached.

关键词： Slope monit.r.ng radar Displacement.r.te of displacement Slope failure Slope monit.r.ng time to failure

EFFECt OF PrEDEFOrMAtION MANNEr ON SEMI-SOLID StrUCt.r. OF AZ61 MAGNESIUM ALLOY IN SIMA PrOCESS

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Acta Metallurgica Sinica(English Lett.r.) 2008年第3期21卷 197-204页

作者： G.P. Chen t.r. Zhou H. Yan School of Mechanical and Electrical Engineering Nanchang University Nanchang 330000 China School of Mechanical Engineering Hunan Industrial University Zhuzhou 412008 China

the effect of predeformation manner, predeformation ratio and isothermal heat-treat paramet.r.on the non-dendrite struct.r. of AZ61 magnesium alloy in SIMA process was studied. Under coequal heat-treat condition, the impact of the hot upsetting pre- deformation on semi-solid microstruct.r. in SIMA process was compared with that of the cold compressive predeformation. the results indicate that non-dendrite microstruct.r. in AZ61 magnesium alloy billets can be obtained by hot or cold upsetting predeformation in SIMA process, although their mechanisms of evolution are different. Increasing hot or cold upsetting predeformation ratio can enhance the effect and quality of the non-dendrite microstruct.r. formed before st.r.ge energy up to sat.r.tion, but the proper isothermal temperat.r. and holding time should be selected.

关键词： AZ61 magnesium alloy Strain-induced melt activated (SIMA) Hot and cold upsetting Predeformation Non-dendrite struct.r.

Optical Charact.r.recognition for printed tamil text using Unicode

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2005年第11期6卷 1297-1305页

作者： SEEtHALAKSHMI r. SrEErANJANI t.r. BALACHANDAr t. Abnikant Singh Markandey Singh ritwaj ratan Sarvesh Kumar Shanmugha Arts Science technology and research Academy Thirumalaisamudram Thanjavur Tamil Nadu IndiaShanmugha Arts Science Technology and Research Academy Thirumalaisamudram Thanjavur Tamil Nadu IndiaShanmugha Arts Science Technology and Research Academy Thirumalaisamudram Thanjavur Tamil Nadu IndiaShanmugha Arts Science Technology and Research Academy Thirumalaisamudram Thanjavur Tamil Nadu IndiaShanmugha Arts Science Technology and Research Academy Thirumalaisamudram Thanjavur Tamil Nadu IndiaShanmugha Arts Science Technology and Research Academy Thirumalaisamudram Thanjavur Tamil Nadu IndiaShanmugha Arts Science Technology and Research Academy Thirumalaisamudram Thanjavur Tamil Nadu India

Optical Charact.r.recognition (OCr) refers to the process of converting printed tamil text documents into software translated Unicode tamil text. the printed documents available in the form of books, papers, magazines, etc. are scanned using standard scanners which produce an image of the scanned document. As part of the preprocessing phase the image file is checked for skewing. If the image is skewed, it is corrected by a simple rotation technique in the appropriate direction. then the image is passed t.r.ugh a noise elimination phase and is binarized. the preprocessed image is segmented using an algorithm which de- composes the scanned text into paragraphs using special space detection technique and then the paragraphs into lines using vertical histograms, and lines into words using horizontal histograms, and words into charact.r.image glyphs using horizontal histograms. Each image glyph is comprised of 32×32 pixels. thus a database of charact.r.image glyphs is created out of the segmentation phase. then all the image glyphs are considered for recognition using Unicode mapping. Each image glyph is passed t.r.ugh various routines which extract the feat.r.s of the glyph. the various feat.r.s that are considered for classification are the charact.r.height, charact.r.width, the number of horizontal lines (long and short), the number of vertical lines (long and short), the hori- zontally oriented curves, the vertically oriented curves, the number of circles, number of slope lines, image centroid and special dots. the glyphs are now set.r.ady for classification based on these feat.r.s. the extracted feat.r.s are passed to a Support Vect.r.Machine (SVM) where the charact.r. are classified by Supervised Learning Algorithm. these classes are mapped onto Unicode for recognition. then the text is reconstructed using Unicode fonts.

关键词：光学性质识别支撑向量人工神经网络编码系统软件翻译

Effect of Withania somnifera root extract on the sexual behaviour of male rats

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Asian Journal of Andrology 2002年第4期4卷 295-297页

作者： I. Ilayperuma W.D. ratnasooriya t.r. Weerasooriya Department of Anatomy Faculty of Medicine University of Ruhuna Sri LankaDepartment of Zoology Faculty of Science University of Colombo Sri LankaDepartment of Anatomy Faculty of Medicine University of Ruhuna Sri Lanka

Aim: to det.r.ine the effect of a methanolic extract of Withania somnifera (L.) Dunal roots on sexual competence of male rats. Methods: Male rats were orally administ.r.d 3000 mg'kg^***^1 of root extract for 7 days. their sexual behaviour was evaluated 7 days prior to treatment, day 3 and 7 of treatment, and day 7, 14 and 30 post.r.atment by pairing each male with a receptive female. results: the root extract induced a marked impairment in libido, sexual performance, sexual vigour, and penile erectile dysfunction. these effects were partly reversible on cessation of treatment. these antimasculine effects are not due to changes in testost.r.ne levels or toxicity but may be at.r.buted to hyperprolactinemic, GABAergic, serotonergic or sedative activities of the extract. Conclusion: Use of W. somnifera roots may be detrimental to male sexual competence. (Asian J Androl 2002 Dec;4: 295-298)

关键词： Withania somnifera male sexual competence aphrodiasiac libido antimasculine male sexual behaviour

Comparative Analysis of the 100 kb region Containing the Pi-k^h Locus Between indica and japonica rice Lines

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Genomics, Proteomics & Bioinformatics 2007年第1期5卷 35-44页

作者： S.P. Kumar V. Dalal N.K. Singh t.r. Sharma National research Cent.r.on Plant Biotechnology Indian Agriculture Research Institute New Delhi 110112India

We have recently cloned a pathogen inducible blast.r.sistance gene Pi-k^h from the indica rice line tetep using a positional cloning approach. In this study, we carried out struct.r.l organization analysis of the Pi-k^h locus in both indica and japonica rice lines. A 100 kb region containing 50 kb upstream and 50 kb downstream sequences flanking to the Pi-k^h locus was selected for the investigation. A total of 16 genes in indica and 15 genes in japonica were predicted and annotated in this region. the average GC content of indica and japonica genes in this region was 53.15% and 49.3%, respectiveIy. Both indica and japonica sequences were polymorphic for simple sequence repeats having mono-, di-, tri-, tetra-, and pentanucleotides. Sequence analysis of the specific blast.r.sistant Pi-k^h allele of tetep and the susceptible Pi-k^h allele of the japonica rice line Nipponbare showed differences in the number and distribution of motifs involved in phosphorylation, resulting in the resistance phenotype in tetep.

关键词： comparative genomics blast.r.sistance gene genome analysis microcolinearity

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远距离教育的未来

世界社会科学 1989年第11期 63-65页

作者： t.r.莫里森 ,海燕

远距离教育在全球各地正在变得日益突出,它反映了高等教育与它所赖以存在的社会之间所发生的一系列根本性的变化。从历史的观点来看,高等教育的主要变化是外部各种力量共同作用的结果。立法机关的决策、人口统计的模式、公共政策、社会... 详细信息

远距离教育在全球各地正在变得日益突出,它反映了高等教育与它所赖以存在的社会之间所发生的一系列根本性的变化。从历史的观点来看,高等教育的主要变化是外部各种力量共同作用的结果。立法机关的决策、人口统计的模式、公共政策、社会问题、发展重点、移民运动、战争以及全球性竞争——所有这一切使高等教育发生了深刻的变化。所谓象牙塔式的教育变成了受社会变化影响最大的一种制度。在当今世界我们所亲身经历的这些变化在广度和深度上无不需要一种新的认识结构,以便重新思考高等教育在社会中的作

关键词：全日制学制远程教育远距离教育学习机会正规教育远距离学习经费模糊性思维形式概念

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民主的嘲讽

1991年

作者： t.r.·戴伊(thomas r. Dye) H.·齐格勒(Harmon Zeigler)

来源：南通市图书馆图书汇雅图书（南通市图书馆... 评论

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工程中的有限元方法第3版英文版影印版

丛书名：时代教育：国外高校优秀教材精选

2005年

作者：（美）钱德拉佩特拉（Chamdrupatla t.r.）（美）贝莱冈度（Belegundu A.D.）

本书介绍了有限元方法的理论，建模方法等。

ISBN: (纸本)7111163516

本书介绍了有限元方法的理论，建模方法等。

关键词：有限元法应用工程技术英文教材

来源：畅想之星图书光盘版（南... 评论

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档案鉴定原则

档案学通讯 1989年第6期 72-75+71页

作者： t.r.谢伦伯格,孙钢美

一公共文件和私人文件都有着各种各样的价值。公共文件首要的价值是对政府本身而言的,它是政府的行政管理、法律和财政工作所需要的。它构成了政府在完成其活动中所使用的基本工具。它包括了财政或法律义务的证据,为了保护政府,这... 详细信息

一公共文件和私人文件都有着各种各样的价值。公共文件首要的价值是对政府本身而言的,它是政府的行政管理、法律和财政工作所需要的。它构成了政府在完成其活动中所使用的基本工具。它包括了财政或法律义务的证据,为了保护政府,这些证据必须加以保管。它包括了大量的公务经验,这些经验是政府处理它所面临的问题时所必需的。总之,公共文件是政府机构得以建立的基础。公共文件次要的价值是针对政府所服务的公民而言的,因为它包括了关于土地、公民身份、养老金、医疗和福利服务权利,以及许多其他权利方面的证

关键词：文件内容财政规划财政金融长远计划行政管理活动档案工作档案鉴定档案考证