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268篇 您的检索式:作者名="Van Niel"
    题名 作者 年代 出处 被引量
1专用气候数据空间插值软件ANUSPLIN及其应用显示文摘空间化的气候数据作为环境因子参数是区域气候模型和地学模型的基础,而插值软件是实现气候观测点数据空间化的工具。ANUSPLIN基于薄盘样条函数理论,引入多个影响因子作为协变量进行气象要素空间插值,大大提高插值精度,且能同时进行多个表面的空间插值,对时间序列的气象要素更加适合。刘志红 Tim R. McVicar Van Niel T. G 杨勤科 李锐 2008气象2008,34,2:180
2睾丸活检:临床操作及其诠释显示文摘睾丸活检许多年来被认为是不明病因男性不育和无精症诊断的基础。近来,男性不育指南都限定诊断性睾丸活检只能用于梗阻性无精子症(睾丸体积正常,生殖激素正常)的鉴别诊断。现今,睾丸活检取精技术与胞浆内单精子显微注射(ICSI)联用于非梗阻性无精子症患者的取精过程中。此外,睾丸活检还可以应用于有睾丸恶性肿瘤风险的患者的取精治疗中。研究一些不育男性后发现,不育患者患原位睾丸癌的风险越来越高,尤其是曾有隐睾症、睾丸恶性肿瘤病史,或患睾丸萎缩的患者。睾丸超声异常,比如睾丸微石症,实质内呈弥散分布,软细胞组织不均、睾丸组织损伤等,进一步增加了这些患者原位癌的发病率。准确的组织学分类,正确的组织处理和固定,样品准备和评估是必须的。同时,推荐使用标准的睾丸活检方法。另外,通过免疫组织化学法检测睾丸组织的肿瘤恶化程度是不可缺少的技术支持。本综述主要描述了睾丸活检用于男性不育临床诊断和治疗措施的最新进展。Gert R Dohle Saad Elzanaty Niels J van Casteren 2012Asian Journal of Andrology2012,14,1:13
3Discrete particle modeling of granular temperature distribution in a bubbling fluidized bed显示文摘The discrete hard sphere particle model (DPM) is applied in this work to study numerically the distributions of particle and bubble granular temperatures in a bubbling fluidized bed. The dimensions of the bed and other parameters are set to correspond to those of Müller et al. (2008). Various drag models and operational parameters are investigated to find their influence on particle and bubble granular temperatures. Various inlet superficial gas velocities are used in this work to obtain their effect on flow characteristics. It is found that the superficial gas velocity has the most important effect on granular temperatures including bubble granular temperature, particle translational granular temperature and particle rotational granular temperature. The drag force model affects more seriously the large scale variables such as the bubble granular temperature. Restitution coefficient influences all granular temperatures to some degree. Simulation results are compared with experimental results by Müller et al. (2008) showing reasonable agreement.Yurong He Tianyu Wang Niels Deen Martin van Sint Annaland Hans Kuipers Dongsheng Wen 2012Particuology2012,10,4:4
4Large-scale fabrication of highly ordered sub-20 nm noble metal nanoparticles on silica substrates without metallic adhesion layers显示文摘Periodic noble metal nanoparticles offer a wide spectrum of applications including chemical and biological sensors,optical devices,and model catalysts due to their extraordinary properties.For sensing purposes and catalytic studies,substrates made of glass or fused-silica are normally required as supports,without the use of metallic adhesion layers.However,precise patterning of such uniform arrays of silica-supported noble metal nanoparticles,especially at sub-100 nm in diameter,is challenging without adhesion layers.In this paper,we report a robust method to large-scale fabricate highly ordered sub-20 nm noble metal nanoparticles,i.e.,gold and platinum,supported on silica substrates without adhesion layers,combining displacement Talbot lithography(DTL)with dry-etching techniques.Periodic photoresist nanocolumns at diameters of~110 nm are patterned on metal-coated oxidized silicon wafers using DTL,and subsequently transferred at a 1:1 ratio into anti-reflection layer coating(BARC)nanocolumns with the formation of nano-sharp tips,using nitrogen plasma etching.These BARC nanocolumns are then used as a mask for etching the deposited metal layer using inclined argon ion-beam etching.We find that increasing the etching time results in coneshaped silica features with metal nanoparticles on the tips at diameters ranging from 100 nm to sub-30 nm,over large areas of 3×3 cm^(2).Moreover,subsequent annealing these sub-30 nm metal nanoparticle arrays at high-temperature results in sub-20 nm metal nanoparticle arrays with~10^(10) uniform particles.Hai Le-The Erwin Berenschot Roald M.Tiggelaar Niels R.Tas Albert van den Berg Jan C.T.Eijkel 2018Microsystems & Nanoengineering2018,4,1:3
5Global review and synthesis of trends in observed terrestrial near-surface wind speeds: Implications for evaporation显示文摘Tim R. McVicar Michael L. Roderick Randall J. Donohue Ling Tao Li Thomas G. Van Niel Axel Thomas Jürgen Grieser Deepak Jhajharia Youcef Himri Natalie M. Mahowald Anna V. Mescherskaya Andries C. Kruger Shafiqur Rehman Yagob Dinpashoh 2011Journal of Hydrology2011,,:2
6Early Laparoscopic Cholecystectomy Improves Outcomes After Endoscopic Sphincterotomy for Choledochocystolithiasis显示文摘Jan Siert K. Reinders Annemarie Goud Robin Timmer Philip M. Kruyt Ben J.M. Witteman Niels Smakman Ronald Breumelhof Sandra C. Donkervoort Jeroen M. Jansen Joos Heisterkamp Marina Grubben Bert van Ramshorst Djamila Boerma 2010Gastroenterology2010,,7:2
7CO2和He在阳泉煤CH4饱和基质煤柱中的渗流特性显示文摘利用自行设计的自约束渗透装置,采用热导检测器在线跟踪穿透实验过程中CO2或He的渗透信号,在40℃条件下,对比研究了CO2和He在阳泉煤CH4饱和基质煤柱(φ6×13mm)中的渗透行为,讨论了煤对气体的吸附或吸取作用及孔隙气压对渗透率的影响。研究表明,有别于煤对He的作用,在CO2和CH4交替渗透时,不同的CH4吹扫时间,对应于不同的CO2初始穿透时间。CO2穿透后被CH4吹扫36h,在煤柱中仍有残留,表明煤对CO2具有相对较强的吸着作用。He在煤柱中穿透后没有明显残留,并且He在测试煤柱中渗透率明显大于CO2的渗透率。在测试条件下,气体交替渗透多次的稳定渗透率无明显变化,表明煤柱的结构没有发生显著变化。由于孔壁效应、煤基质膨胀、吸附边界层等因素的存在,使得气体渗透率随孔隙气体压力的增加而降低。汤放新 杨建丽 肖勇 刘振宇 Niels van Wageningen 2011燃料化学学报2011,39,2:2
8黄土高原多沙粗沙区植被适宜性空间分析与制图显示文摘以黄土高原多沙粗沙区为研究区,以植物自然分布为基础,利用DEM地形分析方法,对降雨、温度等因素的空间变化进行分析,并结合物种的生态环境需求,利用GIS空间分析功能,对该区38个物种适宜性的空间变化进行分析,并以此为基础,评价立地对植物生长型的适宜性。结果表明:利用DEM地形分析与GIS空间分析,可以很好地将物种适宜性的空间变化表现出来;利用VB编程,结合GIS,将物种适宜性与立地适宜性的空间变化予以图形显示。随着数据的积累和数据采集手段的改进,所采用的方法对于区域植被空间适宜性评价可提供积极的借鉴作用。温仲明 赫晓慧 焦峰 Tim R. McVicar LingTao Li Tom G. Van Niel 2007中国水土保持科学2007,5,1:2
9Experimental study of gas and water transport processes in the inter-cleat (matrix) system of coal: Anthracite from Qinshui Basin, China显示文摘Fengshuang Han Andreas Busch Niels van Wageningen Jianli Yang Zhenyu Liu Bernhard M. Krooss 2009International Journal of Coal Geology2009,,2:2
10Simultaneous nitrification and denitrification in aerobic chemostat culture of Thiosphaera patotropha显示文摘ROBERTSON L A VAN NIEL E W J TORREMANS R A M 1988Applied Environmental Microbiology1988,54,11:1
11Effect of Scale on the Links Between Walking and Urban Design显示文摘Learnihan V Van Niel KP Giles-Corti B 2011Geographical Research2011,49,2:1
12Simultaneous nitrification/ denitrification in aerobic chemostat cultures of thiosphaera 显示文摘Robertson LA Van Niel EWJ Torremans RAM 1988Applied and Environmental Microbiology1988,54,11:1
13Pre-processing EO-1 Hyperion hyperspectral data to support the application of agricultural indices 显示文摘DATT B MCVICAR T R VAN NIEL T G 2003IEEE Transactions on Geoscience and Remote Sensing2003,41,6:1
14Preprocessing EO-1 hyperion hyperspectral data to support the application of agricultural indexes显示文摘Datt B McVicar T R Van Niel 2003IEEE Transactions on Geosciences and Remote Sensing2003,41,6:1
15A Review of Self-healing Metals: Fundamentals, Design Principles and Performance显示文摘Self-healing metals possess the capability to autonomously repair structural damage during service. While self-healing concepts remain challenging to be realized in metals and metallic systems due to the small atomic volume of the mobile atoms, the slow diffusion unless at high temperatures and the strong isotropic metallic bonds, the scientific interest has increased sharply and promising progress is obtained. This article provides a comprehensive and updated review on the developments and limitations associated with the various modes of potentially healable damage induced in metals and alloys, i.e., stressinduced damage, irradiation-induced damage in bulk materials and contact damage in corrosion protective coatings. The spontaneous intrinsic healing mechanisms not requiring external assistance other than the material operating at the right temperature and an assisted healing mechanism with external intervention are reviewed. Promising strategies to achieve self-healing in metals are identified. Finally, we give some prospects for future research directions in self-healing metals.Shasha Zhang Niels van Dijk Sybrand van der Zwaag 2020Acta Metallurgica Sinica(English Letters)2020,33,9:1
16Simultaneous nitrification and denitrification in aerobic chemostat cultures of Thiosphaera pantotropha 显示文摘Robertson L A van Niel Ed W J Torremans ROB A M 1988Appl Environ Microbiol1988,54,11:1
17Improving species distribution models for climate change studies: variable selection and scale 显示文摘Austin M P Van Niel K P 2011Journal of Biogeography2011,38,1:1
18Simultaneous nitrification and denitrification in aerobic chemostat cultures of Thiosphaera pantotropha 显示文摘Lesley A R Van Niel E W J Torremans R A M 1998Appl Eviron Microbiol1998,54,:1
19Simultaneous Nitrification and Denitrification in Aerobic Chemostat Cultures of Thiosphaeera Pantotropha显示文摘L A Robertson ED W J VAN Niel ROB A M Torremans 1988Applied and Environmental Microbiology1988,54,11:1
20Lactobacillus therapy for acute infectious diarrhea in children:a meta-analysis显示文摘Van Niel CW Feudtner C Garrison MM 2002Pediatrics2002,109,4:1
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