搜索结果: 1-12 共查到“High voltage”相关记录12条 . 查询时间(0.093 秒)
LONG CORRIDOR SURVEY FOR HIGH VOLTAGE POWER LINES DESIGN USING UAV
UAV flight DSM corridor survey mapping civil engineering power lines design low cost
2018/3/6
The term Unmanned Aerial Vehicle (UAV) is often directly associated with the armed forces due to their widely-criticized use of such vehicles on the modern battlefield. However, with the advancement o...
Costs of basic methods of forest landmaintenance in protective zones of high-voltage power lines in the Czech Republic
Czech Republic forest lands high-voltage power lines maintenance costs
2015/3/20
The paper describes the basic potential methods and their costs of maintenance of forest lands in protective zones under high-voltage power lines (HVPL) 400 kV and 220 kV. In the present situation and...
两种高压电场处理形式对绿熟番茄贮藏品质的影响（Effect of Two Types of High Voltage Electric Field Treatments on the Storage Quality of Mature Green Tomato Fruit）
番茄 贮藏品质 静电场 交变电场
2010/12/28
以“朝研219”番茄为试材，研究了200kV/m、2h/d的负高压间歇静电场（简称稳恒电场）和波动场强-200～200kV/m、频率40kHz的交变电场预处理2h（简称交变电场）两种不同处理对绿熟番茄果实适温（13℃）贮藏品质的影响。结果表明：两种高压电场处理均能够显著减轻番茄果实的腐烂指数（P<0.05），电场处理延缓了果实硬度和可溶性糖、果皮叶绿素含量的下降，以及可滴定酸、番茄红素含...
高压断路器液压操动机构管道特性研究（Pipe Characteristics of High Voltage Circuit Breaker with Hydraulic Operating Mechanism）
高压断路器 液压操动机构 管道损失
2010/1/28
以550kV SF6高压断路器液压操动机构为研究对象，分析了液压机构分合闸过程中的管道损失和压力波传递效应，建立了管道损失和压力波动分布参数模型。对系统进行了建模和仿真，讨论了液压机构的管道特性及管道结构参数对系统分合闸性能的影响。试验验证了仿真结果，证明了仿真模型的准确性。
Extra-High-Voltage DC-DC Boost Converters Topology with Simple Control Strategy
Extra-High-Voltage DC-DC Boost Converters Topology Simple Control Strategy
2009/9/4
This paper presents the topology of operating DC-DC buck converter in boost mode for extra-high-voltage applications. Traditional DC-DC boost converters are used in high-voltage applications, but they...
Installation and cosmic ray test of the high voltage system of the BESⅢ drift chamber
BESⅢ drift chamber high voltage system cosmic ray test installation
2009/8/14
After examination of the designed high voltage power supply system of the BESⅢ drift chamber in the beam test of the full length prototype of drift chamber, a full system covering all the channels of ...
Chromosomal Aberrations in Peripheral Lymphocytes of a High-Voltage Power Lineman Exposed to Electromagnetic Fields
Chromosomal aberrations Human peripheral lymphocytes Electromagnetic fields
2009/7/2
During the last decade, several studies have focused on the adverse effects on health caused by exposure to electromagnetic fields (EMF). Some epidemiological studies of workers exposed to EMF have sh...
Optical Measurement of High-voltage Discharge in Air for Lidar Lightning Detection
Faraday effect Lightning Discharge Polarization
2009/6/1
This study aims to develop a new concept lidar for lightining strike prediction. In cloud-to-cloud discharges, the electromagnetic pulse rotates the polarization plane of a beam propagating beam throu...
Characterization of the high voltage pulsed discharge plasma of ammonia by emission spectroscopy
2007/7/28
期刊信息
篇名
Characterization of the high voltage pulsed discharge plasma of ammonia by emission spectroscopy
语种
英文
撰写或编译
撰写
作者
Yang Wei-Dong,Wang Pei-Nan,Liu Zheng-Ping,Mi Lan,Li Fu-Ming
第一作者单位
刊物名称
Chine...
ABB to Upgrade Control and Valve Cooling System for High Voltage Direct Current Station
cooling systems
2007/2/2
30 Jan 2007，ABB announced that it has recently been selected by the Public Service Company of New Mexico to upgrade the control and the valve cooling systems of their existing ABB high voltage direct ...
New High Voltage Cathode Materials for Rechargeable Lithium Batteries
New High Voltage Cathode Materials Lithium Batteries
2010/12/14
In the context of this article, high voltage cathode will refer to those cathodes that require charging above 4 V vs. Li. Typical examples are the lithiated transition metal oxides mentioned above. In...
The Crystal Structure of the Dioctahedral Mica 2M2 Determined by High Voltage Electron Diffraction
Crystal Structure Dioctahedral Mica Electron Diffraction
2012/2/15
The structure of a dioctahedral 2M2 mica was defined by high voltage electron diffraction. The cell parameters are: a = 8·965, b = 5·175, c = 20·31 ∈, モ = 100∑ 40∏, Z = 4, space group C2/c. Despite th...