搜索结果: 1-15 共查到“电子科学与技术 High K”相关记录82条 . 查询时间(0.312 秒)
Cornell researchers have developed nanostructures that enable record-breaking conversion of laser pulses into high-harmonic generation, paving the way for new scientific tools for high-resolution imag...
Channel Selection for Rendezvous with High Link Stability in Cognitive Radio Network
Cognitive Radio Networks Channel Selection Problem Rendezvous Problem Link Stability
2016/1/22
Channel selection is a fundamental problem in Cognitive Radio Networks (CRNs). One basic channel assignment problem is ren-dezvous, which investigates how secondary users can establish a connec-tion b...
High-throughput, lossless data compression and decompression on FPGAs
Data is written to a storage medium transmission the system performance
2014/12/31
Before writing data to a storage medium or transmitting across a transmission medium lossless compression is often used. Storage space or transmission bandwidth is saved by compression; when the data ...
Simulation of optically controlled GaN (Gallium Nitride) using analytical modeling of high frequency response and switching applications
Modeling analysis optical control gallium nitride ion dose ion energy ion range of parameters
2014/12/31
In this project, an analytical modeling of optically controlled Gallium Nitride has been presented here for an analysis of extrinsic and intrinsic parameters such as, gate capacitances including both ...
ROAD REGION DETECTION IN URBAN AREAS COMBINING HIGH-RESOLUTION RGB IMAGE AND LASER SCANNING DATA IN A CLASSIFICATION FRAMEWORK
Artificial Neural Network RGB Aerial Image Normalized Digital Surface Model Laser Pulse Intensity Image
2014/4/24
This paper addresses the problem of road region detection in urban areas using an image classification approach. In order to minimize the spectral superposition of the road (asphalt) class with other ...
Hole Mobility in Strained Ge and III-V P-channel Inversion Layers with Self-consistent Valence Subband Structure and High-k Insulators
Ge and III-V high-k hole mobility k.p strained p-channel valence subband structure
2014/11/7
We present a comprehensive investigation of the low-ˉeld hole mobility in strained Ge and III-V (GaAs, GaSb, InSb and In1¡xGaxAs) p-channel inversion layers with both SiO2 and high-· insulators. ...
Implementation of method for operating multiple high frequency surface wave radars on a common carrier frequency
High frequency surface wave radar common frequency doppler processing ionosphere
2010/10/12
The increasing use of High Frequency Surface Wave Radar (HFSWR) for the surveillance of coastal regions is faced with the problem of limited channel availability in the electromagnetic spectrum. Thus,...
A review of high frequency surface wave radar for detection and tracking of ships
High Frequency Surface Wave Radar HFSWR Detection Tracking Ships Maritime Domain Awareness
2010/10/12
In today's resource-driven economy, maritime nations are claiming economic borders that extend beyond the continental shelf or the 200 nautical mile (nm) Exclusive Economic Zone (EEZ). However, claimi...
Modeling and simulation strategies in high frequency surface wave radars
Radar HF radar surface wave HF radar HFSWR propagation noise clutter RCS
2010/10/12
Surface Wave High Frequency Radars (SWHFR) are taken into account in the content of modeling and simulation challenges. Examples related to multi-mixed path surface wave propagation, radar cross secti...
High-Input Impedance Voltage-Mode Multifunction Filter with Four Grounded Components and Only Two Plus-Type DDCCs
Voltage-Mode Multifunction Four Grounded Components Two Plus-Type DDCCs
2010/12/3
This paper introduces a novel voltage-mode multifunction biquadratic filter with single input and four outputs using two plus-type differential difference current conveyors (DDCCs) and four grounded p...
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...
Investigation of CMOS Varactors for High-GHz-Range Applications
Investigation CMOS Varactors High-GHz-Range Applications
2009/9/4
This paper explores a variety of different CMOS varactor structures for RF and MMICs. A typical 0.18μm CMOS foundry process was used as the study platform. The varactors' capacitance-voltage character...
Online Learning Resource for Smooth Transition from High School to Engineering Education
Online learning Engineering mathematics Modeling and applications
2009/7/28
Although high school mathematics curriculum documents in Ontario, Canada have, for the past two decades, made calls for classroom practices involving both modeling and applications, students still exp...
Development of a Cylindrical Waveguide Antenna Array with a High Isolation Between Receive - Transmit Sub arrays: Theory and Experiment
cylindrical waveguide aperture antenna Galerkin method
2009/7/28
The possibility of developing an antenna system consisting of transmit and receive arrays and being able to work simultaneously in full duplex mode at the same frequency is a very attractive task. Thi...
Quenching of High-Pressure Phases of Silicon Using Femtosecond Laser-driven Shock Wave
Femtosecond laser Silicon Shock wave
2009/6/1
High-pressure phases which are Β-Sn, Imma and simple hexagonal structures of silicon are quenched using an intense femtosecond laser-driven shock wave. These high-pressure phases have never synthesize...