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11篇 您的检索式:作者名="David Kohn"
    题名 作者 年代 出处 被引量
1Will targeting insulin growth factor help us or hurt us?: An oncologist’s perspective显示文摘Mitchell Kamrava David Gius Giovanna Casagrande Elise Kohn 2009Ageing Research Reviews2009,,:1
2Hormonal effects in infants conceived by assisted reproductive technology 显示文摘Rojas-Marcos PM David R Kohn B 2005Pediatrics2005,116,1:1
3Is photobleaching necessary for Raman imaging of bone tissue using a green laser?显示文摘Kurtulus Golcuk Gurjit S. Mandair Andrew F. Callender Nadder Sahar David H. Kohn Michael D. Morris 2006BBA - Biomembranes2006,,7:1
4Sustained release of vascular endothelial growth factor from mineralized poly (lactide-co-glycolide) scaffolds for tissue engineeing显示文摘William L Murphy Martin C Peters David H Kohn 2000Biomate-rials2000,21,:1
5Ultrasonic monitoring of a low-temperature diffusion bonding process显示文摘Yaron Greenberg David Itzhak Gabriel Kohn 2000Jour of Testing and Evaluation2000,,:1
6迷你直升机进行搜救工作显示文摘当飓风和洪水再一次肆虐的时候,灾区的人们就能够借助一种无人直升机得到救助了。这种看起来就像是一个遥控玩具的直升机已经在“卡特里娜”飓风袭击美国佛罗里达州的印地安港海滩时成功进行了测试。DAVID KOHN 2006科技新时代2006,,4:0
7Bayesian geological and geophysical data fusion for the construction and uncertainty quantification of 3D geological models显示文摘Traditional approaches to develop 3D geological models employ a mix of quantitative and qualitative scientific techniques,which do not fully provide quantification of uncertainty in the constructed models and fail to optimally weight geological field observations against constraints from geophysical data.Here,using the Bayesian Obsidian software package,we develop a methodology to fuse lithostratigraphic field observations with aeromagnetic and gravity data to build a 3D model in a small(13.5 km×13.5 km)region of the Gascoyne Province,Western Australia.Our approach is validated by comparing 3D model results to independently-constrained geological maps and cross-sections produced by the Geological Survey of Western Australia.By fusing geological field data with aeromagnetic and gravity surveys,we show that 89%of the modelled region has>95%certainty for a particular geological unit for the given model and data.The boundaries between geological units are characterized by narrow regions with<95%certainty,which are typically 400-1000 m wide at the Earth's surface and 500-2000 m wide at depth.Beyond~4 km depth,the model requires geophysical survey data with longer wavelengths(e.g.,active seismic)to constrain the deeper subsurface.Although Obsidian was originally built for sedimentary basin problems,there is reasonable applicability to deformed terranes such as the Gascoyne Province.Ultimately,modification of the Bayesian engine to incorporate structural data will aid in developing more robust 3D models.Nevertheless,our results show that surface geological observations fused with geophysical survey data can yield reasonable 3D geological models with narrow uncertainty regions at the surface and shallow subsurface,which will be especially valuable for mineral exploration and the development of 3D geological models under cover.Hugo K.H.Olierook Richard Scalzo David Kohn Rohitash Chandra Ehsan Farahbakhsh Chris Clark Steven M.Reddy R.Dietmar Müller 2021Geoscience Frontiers2021,12,1:0
8基因方法消灭疯牛病显示文摘科学家试图利用遗传工程手段消灭疯牛病。在过去的20年里,全球有超过100万头牛感染了疯牛病。尽管最终因疯牛病的变种、即所谓的库兹菲德-雅各氏症(vCJD,简称库雅氏症)而导致死亡的人数还不到200人,但有迹象表明仍有成千上万的人曾经食用过感染了疯牛病的牛肉,因此专家们担心这些人在经过几年甚至几十年的潜伏期后,最终也将出现致命的脑部疾病。DAVID KOHN 2005科技新时代2005,,10:0
9血液清洁工帮你滤除病毒显示文摘有一种威胁让生物武器专家非常担忧:如果恐怖分子在城市里释放天花病毒.那么就会造成疾病的迅速传播和极度的恐慌。天花是一种目前仍无法治愈的疾病.惟一的预防手段就是接种疫苗.但是早在1980年世界卫生组织就已经宣布天花在地球上被根除.因此现在就连疫苗都已经非常稀少了。一旦这样的攻击发生.工作在第一线的反恐工作人员和急救人员将是最容易受到感染的。DAVID KOHN 2006科技新时代2006,,5:0
10用思维控制机械显示文摘一种先进的大脑植入技术使我们向用思维来控制机械的方向又前进了一步。DAVID KOHN 2005科技新时代2005,,8:0
11新软件进化出罪犯照片显示文摘有了这种软件,由受害者描述犯罪嫌疑人特征的证据搜集手段该退休了。DAVID KOHN 董晔弘(译) 2005科技新时代2005,,8:0
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