搜索结果: 1-15 共查到“电子科学与技术 Evaluation”相关记录15条 . 查询时间(0.209 秒)
Physics based analytical modeling of Gallium Arsenide MESFET for evaluation of junction capacitance with new modeling conception
Modeling gaas mesfets leakage current the drain-source voltage voltage current voltage characteristic
2014/12/31
In this project, an analytical modeling of Gallium Arsenide MESFET has been reported. The model has been developed to obtain the drain current versus drain-source voltage for different gate-source vol...
Design and Evaluation of an L-Band Current-Mode Class-D Power Amplifier Integrated Circuit
power amplifier mixer integrated circuit model efficiency
2014/12/8
Power amplifiers (PAs) convert energy from DC to high frequencies in all radio and microwave transmitter systems be they wireless base stations, handsets, radars, heaters, and so on. PAs are the domin...
EVALUATION OF PERSISTENT SCATTERER PATTERNS AT BUILDING FACADES BY SIMULATION TECHNIQUES
Urban high resolution SAR persistent scatterer TerraSAR-X simulation
2014/4/24
Thanks to the high resolution of modern SAR satellites many persistent scatterers (PS) appear at single buildings, approximately half of them representing building facades. These groups of points ofte...
Design and evaluation of a query-based jamming detection algorithm for wireless sensor networks
Wireless sensor network jamming attacks denial of service intrusion detection
2011/3/22
Jamming attacks, which are the main cause of data corruption and network blockages in wireless sensor networks (WSNs), are one of the most serious threats for WSNs. This type of attack not only blocks...
Design and evaluation of a linear switched reluctance actuator for positioning tasks
Actuator design linear switched reluctance position control sliding mode
2010/11/22
This paper presents the development of a new linear switched reluctance actuator and confirms its applicability to perform positioning tasks. After the explanation of the actuator working principle an...
FDTD Evaluation of the SAR Distribution in a Human Head Near a Mobile Cellular Phone
FDTD Evaluation SAR Distribution Human Head Mobile Cellular Phone
2009/7/27
In this study, Finite-Difference Time-Domain (FDTD) method is used to calculate the Specific Absorbtion Rate (SAR; defined as the power absorbed by unit mass of the tissue) distribution in a human hea...
Evaluation of Power Factor Corrected AC - DC Converters and Controllers to meet UPS Performance Index Performance Index
PFC energy efficient half bridge ac-dc converter
2010/2/2
Harmonic pollution and low power factor in power
systems caused by power converters have been of great concern. To
overcome these problems several converter topologies using
advanced semiconductor ...
Evaluation of Two-center One- and Two-electron Integrals over Slater Type Orbitals
overlap integral hybrid integral coulomb integral Slater type orbital elliptical coordinate
2007/12/19
摘要 A formulation previously presented by the authors for coulomb integrals was generalized to other two-center integrals, except exchange integral. Within this frame, molecular integrals were expresse...
Blocking Performance Evaluation of a Proposed Wavelength Cross Connect Architecture
Blocking probability OXC wavelength routed networks (WRON) optical switching.
2010/7/16
In this work, we study the blocking performance of the individual node: optical cross connects (OXC) with (full or limited) wavelength conversion in wavelength routed networks (WRON) based on the theo...
Evaluation of Meshed Reference Planes for High Performance Applications
PCB/MCM reference plane modeling simulation CAD design
2010/12/9
The actual generations of integrated circuits are characterized, inter alia, by very high frequencies or very high speeds. The dramatic evolution ofthe semiconductor's technology establishes a greater...
A Method for the Statistical Evaluation of Crosstalk Effect Between Three Parallel Conductors
Crosstalk statistical model MTL method
2010/12/9
There are several cases at which, in order to evaluate the crosstalk effect among transmission lines carrying useful signals, there is a need for probabilistic approach. This paper considers the probl...
Evaluation of Bonding Orbitals in Amorphous Silicon by Means of the Chemical Pseudopotential Method
Bonding Orbitals Amorphous Silicon the Chemical Pseudopotential Method
2010/12/15
The chemical pseudopotential method has been used by a number of workers in order to study the valence bands of amorphous tetrahedrally bonded semiconductors. However, various problems related to this...
Evaluation of Du Pont Copper-Compatible Resistor System
Du Pont Copper-Compatible Resistor System lanthanum hexaboride
2010/12/27
Four nitrogen-fireable resistor inks with resistivities from 20 Ω/□ to 10 kΩ/□ were examined and found to be based upon lanthanum hexaboride. The firing conditions, especially the peak tem...
Reliability Evaluation of Thick Film Resistors Through Measurement of Third Harmonic Index
Thick Film Resistors Third Harmonic Index
2010/12/28
The degradation mechanism of ruthenium-based thick film resistors is investigated in accelerated tests under various conditions of humidity, temperature and overload stress. This study shows that the ...
Evaluation of Inhomogeneous Resistive Layers by a Four Point Method
Inhomogeneous Resistive Layers a Four Point Method
2011/1/10
This paper describes the determination of the sheet resistance of a narrow strip located in a homogeneous resistive layer of different resistivity. The application of the method for the evaluation of ...