Results 81 to 90 of about 749 (180)

Comparison of Wind Power Density Calculation Methods Based on Weibull Distribution [PDF]

open access: yes
[Introduction] Wind power density is an important parameter for wind resource assessment, and the accurate calculation of wind power density relies on the accuracy of fitting the wind frequency with the Weibull distribution. It is helpful that reasonable
Hua LI
core   +1 more source

New class of frequency-hopping sequences set with optimal average Hamming correlation property [PDF]

open access: yes, 2012
The average Hamming correlation is an important performance parameter of frequency-hopping sequences.A generalization of Whiteman cyclotomy was proposed and then some properties of the new defined cyclotomy classes were presented.Based on the ...
Hai-hui ZHANG   +2 more
core  

高温混合气体临界击穿场强的计算研究

open access: yesGaoya dianqi, 2018
针对高温混合气体临界击穿场强的计算问题,首先对所采用的零维模型进行了介绍,在此基础之上,对纯空气、空气与PA6蒸气的混合气体、空气与POM蒸气的混合气体在内的不同组分气体介质的临界击穿场强进行了计算,并对计算结果进行了理论上的分析。所涉及到的内容主要包括高温体粒子组分的获取,玻尔兹曼方程的近似求解和电子能量分布函数(EEDF)的计算,碰撞截面数据的选择,电子碰撞电离系数和吸附系数的计算。其中重点在于对波尔兹曼输运方程的近似求解和分析不同气体介质对临界击穿场强的影响。
李世欣
doaj  

MVDR beamforming for correlated signal with vector smoothing [PDF]

open access: yes, 2013
The MVDR beamforming algorithm for correlated signal with smoothing was proposed based on electromagnetic vector sensor array.First,the decorrelation principle of MVDR beamforming with vector smoothing was analyzed,and the output SINR of VS-MVDR ...
Jian-wu TAO, Zhi-yong LIN
core  

[Development, reliability, and validity of a treatment-related quality of life scale for Chinese patients with multiple myeloma]. [PDF]

open access: yesZhonghua Xue Ye Xue Za Zhi
Sun CY   +30 more
europepmc   +1 more source

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