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82篇 您的检索式:作者名="Macalpine"
    题名 作者 年代 出处 被引量
1基于红外热像分析的绝缘子污闪过程中干区形成过程分析显示文摘形成干区是污闪发生的前提条件之一,为此重点从热的角度分析了干区的形成过程。用两端带有铝电极的矩形玻璃板模拟实际绝缘子,用红外热像仪拍摄了雾室中绝缘板表面干区形成中的温度分布变化,同时用泄漏电流测量系统实时记录了泄漏电流的变化。最后,将温度分布变化和泄漏电流趋势联系在一起,细致地分析了干区的形成过程,并得到了干区形成过程中的一些规律:加压之初,污层表面温度均匀稳定升高;干区形成之前污层表面会出现持续的高温区,局部干区首先形成在高温区;局部干区向完整干区的发展在温度分布上表现为高温在污层的贯穿;完整干区形成后,污层总体温度下降,但是干区呈现扩大趋势;干区达到稳定后,湿区温度降低为环境温度,干区依旧维持高温且温度由干区中心向两侧递减。因此,干区的形成不仅仅是一个电的过程,同时也是一个热的过程。梁飞 MacAlpine Mark 关志成 张若兵 2014高电压技术2014,40,1:16
2污秽绝缘子表面干区形成的影响因素显示文摘干区的形成是绝缘子污闪发生的一个必要条件,干区的形成受电压、污秽种类和含量、天气等诸多因素的影响,研究干区形成的影响因素问题,不仅有助于更加深刻地认识干区的形成,而且可以完善外绝缘污闪理论。为此,以矩形污秽玻璃片模拟实际绝缘子,在人工雾室中试验研究了污秽和雾对干区形成的影响。试验结果表明:随着等值附盐密度(ESDD)的增加,干区的形成时间逐渐缩短,干区宽度逐渐减小;随着等值附灰密度(NSDD)的增加,干区的形成时间逐渐变长,干区宽度逐渐增大;随着雾浓度的增大,干区的形成时间不变,干区宽度逐渐减小。此外,基于热量平衡理论对这些影响趋势给出了解释。研究结果表明ESDD、NSDD和雾浓度对于干区的形成是有影响的。梁飞 MacAlpine Mark 关志成 张若兵 2012高电压技术2012,38,10:15
3Genetic Improvement of Willow for Bioenergy and Biofuels显示文摘Willows (Salix spp.) are a very diverse group of catkin-bearing trees and shrubs that are widely distributed across temperate regions of the globe.Some species respond well to being grown in short rotation coppice (SRC) cycles,which are much shorter than conventional forestry.Coppicing reinvigorates growth and the biomass rapidly accumulated can be used as a source of renewable carbon for bioenergy and biofuels.As SRC willows re-distribute nutrients during the perennial cycle they require only minimal nitrogen fertilizer for growth.This results in fuel chains with potentially high greenhouse gas reductions.To exploit their potential for renewable energy,willows need to be kept free of pests and diseases and yields need to be improved without significantly increasing the requirements for fertilizers and water.The biomass composition needs to be optimized for different end-uses.Yields also need to be sustainable on land less productive for food crops to reduce conflicts over land use.Advances in understanding the physiology and growth of willow,and in the identification of genes underlying key traits,are now at the stage where they can start to be used in breeding programs to help achieve these goals.Angela Karp Steve J.Hanley Sviatlana O.Trybush William Macalpine Ian Shield 2011Journal of Integrative Plant Biology2011,53,2:5
4An incremental analysis of spark paths in air using 3 dimensional image processing显示文摘Qiu D H MacAlpine J M K Li Z Y 2000IEEE Trans on Dielectrics and Electrical Insulation2000,7,6:1
5A probabilistic analysis of spark paths in pointrplane air gaps显示文摘Qiu D H MacAlpine J M K Li Z Y 2001IEEE Trans on Dielectrics and Electrical Insulation2001,8,4:1
6A study of wear resistance of plasma-sprayed and laser-remelted coatings on aluminium alloy显示文摘Liang G Y Wong T T MacAlpine J M K 2000Surface and Coatings Technology2000,127,:1
7Positive corona inception voltages and coronacurrents for air at various pressures and humidities显示文摘Bian Xingming Wang Liming Macalpine 2010IEEE Transactions on Dielectrics and ElectricalInsulation2010,17,1:1
8Positive corona inception voltages and corona currents for air at various pressures and humidities 显示文摘Bian X Wang L MacAlpine J M K 2010IEEE Transac- tions on Dielectrics and Electrical Insulation2010,17,1:1
9Peer and self-assessment at tertiary level: An experimental report显示文摘Oldfield K A Macalpine M K 1995Assessment & Evaluation in Higher Education1995,20,1:1
10The high mobility group protein Abf2p influences the level of yeast mitochondrial DNA recombination intermediates in vivo显示文摘MACALPINE D M PERLMAN P S BUTOW R A 1998Proc Natl Acad Sci USA1998,95,12:1
11Scottish foot ul- cer risk score predicts foot ulcer healing in a regional spe- cialist foot clinic 显示文摘Leese G MacAlpine R Schofield C 2007Diabetes Care2007,30,8:1
12Contribution of dynamic vascular wallthickening to luminal narrowing during coronary arterialconstriction显示文摘MacAlpin RN 1980Circulation1980,61,2:1
13Improved demodulation scheme for fiber optic interferometers using an asymmetric 3×3 coupler显示文摘Zhiqiang Zhao M Süleyman Demokan Mark MacAlpine 1997J Lightwave Technol1997,15,11:1
14The fragmented QRS : does it really indicate a ventric- ular abnormality? 显示文摘MacAlpin RN 2010J Cardiovasc Med ( Hagerstown )2010,11,11:1
15Improved demodulation scheme for fiber optic interferometers using an asymmetric 3 ×3 coupler显示文摘ZHANG Z DEMOKAN M S MACALPINE M 1997Lightwave Technology Journal of IEEE1997,15,11:1
16Angina pectoris at rest with preservation of exercise capacity:Prinzmetal's variant angina显示文摘MacAlpin RN Kattus AA Alvaro AB 1973Circulation1973,47,:1
17Development of a fibre-optic sensor for partial discharges in oil filled power transformers显示文摘Mark MacAlpine Zhao Zhiqiang S leyman Demokan M 2002Electric Power Systems Research2002,63,1:1
18Adaptation to exercise in angina pectoris : the electrocardiogram during treadmill walking and coronary angiographic findings 显示文摘Macalpin RN Kattus AA 1966Circulation1966,,33:1
19Visualization of replication initiation and elongation in Drosophila 显示文摘Claycomb JM MacAlpine DM Evans JG 2002J Cell Biol2002,159,2:1
20An incremental analysis of spark paths in air using 3-dimensional image processing显示文摘QIU D H MACALPINE J M LI Z Y 2000IEEE Transactions on Dielectrics and Elec- trical Insulation2000,7,6:1
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