搜索结果: 46-60 共查到“工学 Rate”相关记录278条 . 查询时间(0.234 秒)
Asymptotics for continuous lifetime distributions with polynomial failure rate with an application in reliability
Continuous lifetime distribution Polynomial failure rate Delta method Testing Confidence interval Computer algebra
2012/4/15
This paper is a continuation of work reported by Csenki (2011 [1]), where the coefficients of a polynomial failure rate function of a continuous lifetime distribution were expressed in terms of deriva...
Enhancement of Data Transfer Rate of Phase Change Optical Disk by Doping Nitrogen in Ge–In–Sb–Te Recording Layer
Ge–In–Sb–Te recording material data transfer rate recrystallization speed nitrogen doping
2011/11/25
This work investigated the enhancement of the data transfer rate and/or recrystallization speed of Ge–In–Sb–Te recording material by nitrogen doping. The effects of nitrogen content on the dynamic pro...
The influence of gas storage parameters on gas emission rate from borehole
Borehole Gas flow rate Gas storage Original gas pressure Permeability coefficient
2012/3/31
Gas emission rate from borehole is one of the most important indexes for the coal and gas outburst prediction. The mathematical model of gas flow in the coal seam, gas flow into the measuring chamber,...
Experimental study on oxygen consumption rate of residual coal in goaf
Goaf Coal Spontaneous combustion Heating and oxidizing Oxygen consumption Granularity
2012/3/28
In order to research the actual oxygen consumption rate of residual coal in goaf, the heating and oxidizing experiment was conducted respectively on five types of single particle size of coal samples ...
The relationship between oxygen consumption rate and temperature during coal spontaneous combustion
Spontaneous combustion Oxygen consumption rate Heating and oxidation Critical temperature
2012/3/31
Spontaneous combustion is a major natural disaster in coal production. In the process of exploring coal self-ignition, a series of hypotheses have been put forward, most scholars agree that the curren...
Influence of super-absorbent polymer on the growth rate of gas hydrate
Coal mine methane separation Gas hydrate Induction time Growth rate SAP
2012/3/31
The growth rate of hydrate and morphology of methane hydrate formation were studied in a visual pressure cell at 5.5 MPa. The gas hydrate formation was carried out (coal mine methane (CMM) + tetrahydr...
RATE-SSIM OPTIMIZATION FOR VIDEO CODING
SSIM index rate distortion optimization reduced-reference image quality assessment Lagrange multiplier rate-SSIM optimization
2013/7/24
The structural similarity (SSIM) index has been found to bea good indicator of perceived image quality. In this paper,we propose a rate-SSIM optimization scheme for mode selection in H.264/AVC video c...
Up-sampling Dependent Frame Rate Reduction for Low Bit-rate Video Coding
Up-sampling Dependent Frame Rate Video Coding
2013/7/24
In low bit rate video coding, the frame rate of input sequence can be reduced to the half or even smaller portion by skipping or deleting frames before compression, and then the temporal resolution is...
WINDOW-LEVEL RATE CONTROL FOR SMOOTH PICTURE QUALITY AND SMOOTH BUFFER OCCUPANCY
Rate Control Smooth Picture Quality ½ - domain Window Buffer Occupancy
2013/7/24
rate control consists of bit allocation and QPdecision on R-QP model. In bit allocation, target bits is further confined if buffer overflows. Meanwhile, rate controlshould also give as smo...
Relaxation rate of the reverse biased asymmetric exclusion process
asymmetric exclusion process Statistical Mechanics
2011/10/8
Abstract: We compute the exact relaxation rate of the partially asymmetric exclusion process with open boundaries, with boundary rates opposing the preferred direction of flow in the bulk. This revers...
Statistics of the Energy Dissipation Rate and Local Enstrophy in Turbulent Channel Flow
Turbulent channel flows, turbulent shear flows, energy dissipation rate, enstrophy
2011/9/6
Using high-resolution direct numerical simulations, the height and Reynolds number dependence of higher-order statistics of the energy dissipation rate and local enstrophy are examined in incompressib...
A Consolidated Multi-rate Burst-Mode DPSK Transmitter Using a Single Mach-Zehnder Modulator
Phase modulation Free-space optical comm Optical communications
2015/5/26
We demonstrate phase modulation, pulse carving, and burst-mode windowing in a single Mach-Zehnder modulator, significantly reducing size, weight, power, and complexity of prior three-modulator designs...
Symmetrical 2-D Hermite-Gaussian Square Launch for High Bit Rate Transmission in Multimode Fiber Links
Fiber optics communication Fiber properties
2015/5/26
A 2-D Hermite-Gaussian square launch is demonstrated to show improved systems capacity over multimode fiber links. It shows a bandwidth improvement over both center and offset launches and exhibits ±5...
Demonstration of Baud-Rate-Variable and Channel- Spacing-Tunable Demultiplexing of 10-40-Gbaud OFDM Subcarriers using a Multi-Tap Optical DFT
Fiber optics links subsystems Nonlinear wave mixing
2015/5/25
We experimentally demonstrate a tunable and reconfigurable optical DFT to demodulate 10-40-Gbuad OFDM with 2/3/4 subcarriers at 20/40GHz frequency spacing. Average power penalty of ~7 dB at BER of 10 ...
Ultimate Limits of Effective Area and Attenuation for High Data Rate Fibers
Fiber design fabrication Fiber characterization
2015/5/25
High data rate telecommunication networks operating at 100 Gb/s require low loss fibers with very large effective areas to mitigate nonlinearities. The state of the art fiber technologies needed to ac...