Results 31 to 40 of about 142,078 (293)

Multiple commutator formulas [PDF]

Israel Journal of Mathematics, 2012
Let A be a quasi-finite R-algebra (i.e., a direct limit of module finite algebras) with identity. Let I_i, i=0,...,m, be two-sided ideals of A, \GL_n(A,I_i) the principal congruence subgroup of level I_i in GL_n(A) and E_n(A,I_i) be the relative elementary subgroup of level I_i.
Hazrat, Roozbeh (R16959), Zhang, Zuhong
openaire   +4 more sources

Procedure analysis of UHVDC commutation failure

The Journal of Engineering, 2019
There may be a commutation failure during a fault or start-up of the UHVDC inverter side. The law of commutation failure process in UHVDC converter is studied here. First, the cause of inverter commutation failures is briefly introduced.
Chenqing Wang, Chi Zhang, Xiangping Kong, Peng Li, Yubo Yuan   +4 more
doaj   +1 more source

Line‐of‐sight probability for UAV communications in 3D grid urban streets

Electronics Letters, 2023
In this letter, the authors present a novel expression for the probability of line‐of‐sight (LoS) between a UAV and ground users situated on a gridded street within urban and dense urban environments.
Mengan Song, Zhonghua Liang, Yiming Huo, Ren Liu   +3 more
doaj   +1 more source

Unitary quantization and para-Fermi statistics of order two [PDF]

, 2018
A connection between a unitary quantization scheme and para-Fermi statistics of order 2 is considered. An appropriate extension of Green's ansatz is suggested.
Gitman, D. M., Markov, Yu. A., Markova, M. A.   +2 more
core   +3 more sources

Interaction influence of harmonics in MIDC transmission systems

The Journal of Engineering, 2019
Owing to the particular distribution of energy and load, the high-voltage direct current transmission system has been greatly developed in China. A number of areas have formed the multi-infeed direct current (MIDC) transmission systems.
Wang Ling, Chen Dong, Xue Yinglin, Wu Fangjie   +3 more
doaj   +1 more source

GPS-Free Wireless Precise Positioning System for Automatic Flying and Landing Application of Shipborne Unmanned Aerial Vehicle

Sensors
This research is dedicated to developing an automatic landing system for shipborne unmanned aerial vehicles (UAVs) based on wireless precise positioning technology.
Tsu-Yu Lo, Je-Yao Chang, Tan-Zhi Wei, Pin-Yen Chen, Shih-Ping Huang, Wei-Ting Tsai, Chong-Yi Liou, Chun-Cheng Lin, Shau-Gang Mao   +8 more
doaj   +1 more source

Commutation failure caused by AC filter switching In HVDC system

The Journal of Engineering, 2019
Switching AC filter may cause harmonic impact, which may lead to commutation failure of HVDC system. Here, the commutation failure mechanism of HVDC system caused by AC filter switching is studied.
Meng Liu, Lei Zheng, Fangfang Shi, Kuan Li   +3 more
doaj   +1 more source

Commutative queries

Proceedings of the Fifth Israeli Symposium on Theory of Computing and Systems, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Beigel, Richard, Chang, Richard
openaire   +1 more source

Solution to reduce voltage stress of sub-module in LCC–MMC transmission system at the condition of communication fault

The Journal of Engineering, 2018
Line commutate converter–modular multilevel converter (LCC–MMC) hybrid high voltage direct current (HVDC) system combines the advantages of both LCC-HVDC and MMC-HVDC, and will be wildly used in the future.
Dengjiang Xing, Jianjun Su, Dingwen Hu, Shumin Sun, Yan Chen, Xianwei Wang, Jun Zhang, Weizheng Yao, Jinlong Wu   +8 more
doaj   +1 more source

Braided Statistics from Abelian Twist in $\kappa$-Minkowski Spacetime

, 2009
$\kappa$-deformed commutation relation between quantum operators is constructed via abelian twist deformation in $\kappa$-Minkowski spacetime. The commutation relation is written in terms of universal $R$-matrix satisfying braided statistics.
CHAIHO RIM, HYEONG-CHAN KIM, Majid S., Nam S., YOUNGONE LEE   +4 more
core   +1 more source