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采用高速摄像仪记录O2/CO2气氛下煤粉颗粒群在石英长管内着火及火焰传播的过程，分析粒径为16，82 μm煤粉按一定比例混合，在不同氧浓度的O2/CO2气氛及空气中着火及火焰传播特性。结果表明：粒径分布对煤粉颗粒群着火和火焰传播有很大影响，小粒径煤粉着火快，火焰长度长；小粒径煤粉与大粒径煤粉混合燃烧可以缩短煤粉着火时间，提高火焰传播速度；氧浓度提高，火焰燃烧区间增加，小粒径煤粉比例越高，氧浓度对燃...
ACCURACY ANALYSIS OF THE LEICA HDS3000 AND FEASIBILITY OF TUNNEL DEFORMATION MONITORING
terrestrial laser scanning accuracy analysis change detection
2015/8/13
Deformation monitoring with total stations, while superior in accuracy, suffers from the poor spatial resolution obtainable by this
measurement method within the limited time on a tunnel construction...
VISUALIZATION AND ANALYSIS OF FULL-WAVEFORM AIRBORNE LASER SCANNER DATA
Airborne laser scanning LIDAR laser data processing
2015/8/13
Recent development of airborne laser scanner systems allows for digitization and recording of the full-waveform, i.e. the received
signal of the reflected laser pulse. In this paper, some visualizat...
Wind Field Analysis Around A Horizontal Axis Wind Turbine
Wind Field Analysis A Horizontal Axis Wind Turbine
2014/10/21
Wind Field Analysis Around A Horizontal Axis Wind Turbine.
Wind Turbine Tower Wake Interface.
A Continuation Of Th Investigation of the Feasibility of Using Windpower for Space Heating in Colder Climates
Wind Power Space Heating Colder Climates
2014/10/21
A Continuation Of Th Investigation of the Feasibility of Using Windpower for Space Heating in Colder Climates.
Investigation of the Feasibility of Using Windpower for Space Heating in Colder Climates
Wind Power Space Heating Colder Climates
2014/10/21
Investigation of the Feasibility of Using Windpower for Space Heating in Colder Climates.
A Two Dimensional Analysis Of Vertical Axis Windmills
A Two Dimensional Analysis Vertical Axis Windmills
2014/10/21
A Two Dimensional Analysis Of Vertical Axis Windmills.
Investigation of the Feasibility of Using Windpower for Space Heating in Colder Climates. Phase II Progress Report
Wind Power Space Heating in Colder Climates
2014/10/21
Investigation of the Feasibility of Using Windpower for Space Heating in Colder Climates. Phase II Progress Report.
Preliminary Report: Umass Wind Turbine Operation.
Discussion Of Momentum Thory For Windmills.
波浪能发电装置的电力变换和测控系统
波浪能 组合型振荡浮子 电力变换 测控系统
2014/6/20
随着传统能源的枯竭，新能源的开发成为时代的潮流，海洋可再生能源中的波浪能备受青睐，波浪能发电装置也是各式各样，但发电的基本环节大致相同，本文在一种液压式新型波浪能发电装置——组合型振荡浮子波浪发电装置基础上，探讨其电力转换和测控系统，简要阐述了该系统解决的几个重要的技术难题，为波浪能发电装置走向集成化、规模化探索道路。
韩城矿区的特点是煤层层数多，储量大，但断层发育，单层厚度薄，孔隙度和渗透率低。生产过程中表现出排水时间长，产量波动大，中低产井比例高的特点。如何提高单井产量是中国煤层气开发目前面临的一个重要课题。从地质和工程2个方面分析了中低产井的影响因素：①投产层厚度薄，单井控制储量有限；②储层物性差，产量低；③断层与压裂裂缝沟通，邻层水发生了窜流；④浅层没固井或固井质量差，表层水沿管外发生窜槽，排水量大；⑤压...
上扬子区下寒武统牛蹄塘组是我国页岩气最具勘探潜力的目的层位之一，因此,以贵州丹寨南皋剖面为例，通过野外测量、薄片鉴定、地球化学分析、X-衍射矿物分析、孔隙度测量、扫描电镜观察和等温吸附模拟实验等多种方法，研究牛蹄塘组页岩气地质、地球化学、储层和含气性特征，并讨论有机质发育与矿物相关性，以及吸附气量的控制因素。下寒武统牛蹄塘组下部为深水陆棚相泥岩沉积，上部为浅水陆棚相粉砂质泥岩和钙质泥质粉砂岩沉积。...