搜索结果: 1-15 共查到“电子科学与技术 transmission”相关记录23条 . 查询时间(0.14 秒)
Power flow control with Distributed Flexible AC Transmission System (D-FACTS) devices
Climate change energy crisis the financial crisis electric power the power industry power grid internal efficiency
2014/12/31
Climate change, energy crisis and financial crisis are some of the issues that affect the transformation of power and the power industry. [13] Distributed FACTS or D-FACTS devices are being used today...
Resonant Antennas Based on Coupled Transmission-Line Metamaterials
Antenna radiation patterns metamaterials microstrip antennas patch antennas propagation constant
2014/12/8
A novel microstrip patch antenna topology is presented for achieving a dual-band response with arbitrarily closely spaced resonances. This topology is based on a coupled transmission line structure in...
Transmission-Line Metamaterial Design of an Embedded Line Source in a Ground Recess
Antenna radiation patterns metamaterials periodic structures transmission lines
2014/12/8
A transmission-line metamaterial design of a material-embedded electric line source radiating inside a ground recess is investigated. The media embedding the recessed line source are designed such tha...
State variable distributed-parameter representation of transmission line for transient simulations
state-space methods power system transients Transmission line modeling
2010/10/12
In this paper, a distributed-parameter state variable approach is used to calculate transients on transmission lines based on the concept of travelling waves. The method of characteristics for lossles...
Variance and kurtosis-based characterization of resonances in stochastic transmission lines: local versus global random geometries
Variance and kurtosis-based characterization stochastic transmission lines global random geometries
2010/1/11
A stochastic method is proposed to characterize electromagnetic couplings involving geometrically perturbed transmission lines. A combined exploitation of suitably defined statistical tools is present...
Distance Relaying Algorithm for Double-Circuit Transmission Line with Compensation for Reactance Effect under Standard Availability of Measurements
Double-circuit transmission line distance protection fault
2009/7/28
This paper deals with non-pilot distance protection of a double-circuit transmission line. Negative impact of the reactance effect, appearing in measuring a fault loop impedance, on operation of the r...
Optimal Location for Shunt Connected FACTS Devices in a Series Compensated Long Transmission Line
Maximum receiving end power shunt FACTS degree of series compensation
2009/7/28
Shunt FACTS devices are used for controlling transmission voltage, power flow, reducing reactive losses, and damping of power system oscillations for high power transfer levels. In this paper the opti...
THE APPROACH FOR OPTIMIZATION OF TRANSMISSION OVER POWER LINKS USING THE THYRISTOR-CONTROLLED SERIES COMPENSATION
FACTS devices TCSC power flow
2010/1/11
The energy transportation networks can be improved by multiplying or
creating new lines. This is not always the case for various reasons. The series capacities
controlled by SCRs (Silicon Controlled...
Extraordinary Transmission and Enhanced Emission with Metallic Gratings Having Converging-Diverging Channels
Extraordinary Transmission Enhanced Emission Metallic Gratings Converging-Diverging Channels
2010/12/6
Transmission metallic gratings having the shape of converging-diverging channel (CDC) give an extra degree of freedom to exhibit enhanced transmission resonances. By varying the gap size at the throat...
Transmission Properties of Metallic Grating with Subwavelength Slits in THz Frequency Region
Transmission Properties Metallic Grating Subwavelength Slits THz Frequency Region
2010/12/6
This paper presents a fully experimental and theoretical study on transmission properties of a deep metallic grating with subwavelength slits in THz frequency region by using THz time domain spectrosc...
期刊信息
篇名
Ultrastructural study of polyspermy during early embryo development in pigs,observed by scanning electron microscope and transmission electron microscope
语种
英文
撰写或编译
撰写
作者
Ping Xia,Zhouji Wang...
Edison Electric Institute President Welcomes Designation of National Electric Transmission Corridors
Electric Transmission
2007/4/29
Washington, DC (April 26, 2007) - Edison Electric Institute President Thomas R. Kuhn today applauded the long-awaited designation of proposed National Electric Transmission Corridors by the U.S. Depar...
Transmission Function of Cascaded Multilayer Medium Thin Film Filter
Integrated optics device optical amplifiers optical waveguide amplifier
2010/7/16
A cascaded multilayer medium thin film filter used for flattening the gain of erbium-ytterbium co-doped waveguide amplifier(EYCDWA) is presented. The transmission function of cascaded multilayer mediu...
Modelling and Simulation of Multichannel DWDM Transmission Links Including All Relevant FWM Products
Modelling Simulation Multichannel DWDM Transmission Links FWM Products
2010/7/15
In order to use existing and future optical transmission links optimally, multiplexing techniques in the frequency domain (Wavelength-Division Multiplex, WDM) are widely used [1]. The number of channe...
Coarse Wavelength Division Multiplexing for the Joint Transmission of 622Mbit/s- and CATV Signals in the Optical Network of a City Carrier
Coarse Wavelength Division Multiplexing Joint Transmission 622Mbit/s- CATV Signals Optical Network
2010/7/15
For an existing optical network of a city carrier running at a wavelength of 1.31 m so far investigations were performed to clearify the possibility for extending the transmission capacity. ...