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Search Results: 1 - 10 of 96390 matches for " Wen-Tao Yu "
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The Research of Transmission Network Planning Based on System’s Self-organized Criticality  [PDF]
Zheng-yu Shu, Chang-hong Deng, Wen-tao Huang, Yi-xuan Weng
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.54B173

This paper presents a new line importance degree evaluation index for the propagation of cascading failures, which is used to quantify transmission lines for cascade spread. And propose an improved capital matching model, according to the results of the evaluation, to enhanced robustness of the power system. The simulation results proved that in the case of the same system, the new model can inhibit cascade spread, reduce the probability of large-scale blackouts.

Hong-Feng Chen,Qi Fang,Wen-Tao Yu
Acta Crystallographica Section E , 2008, DOI: 10.1107/s1600536808033771
Abstract: The title compound, [Ni(C5O5)(C10H8N2)2], lies across a crystallographic twofold axis, around which two 2,2′-bipyridine (2,2′-bipy) ligands are arranged in a propeller manner. The local geometry of the NiN4O2 coordination core basically adopts an octahedral geometry. The molecular twofold axis is along the direction of the molecular dipole moment, and the complex is packed with its dipole moment alternately along the +b and b directions. The crystal structure is stabilized by intermolecular C—H...O hydrogen bonds.
Syphilitic proctitis mimicking rectal cancer: A case report
Wen-Tao Zhao, Jing Liu, Yu-Ying Li
World Journal of Gastrointestinal Pathophysiology , 2010,
Abstract: Syphilitic proctitis is a rare disease. It usually presents as proctitis, ulcer and neoplasm but lacks pathognomonic clinical symptoms. It is, therefore, difficult to diagnose and is occasionally treated inappropriately. We report the case of a 51-year-old man who had a hard, ulcerated mass, which occupied the circumference of the rectal wall and which mimicked a rectal tumor. Fortunately, positive finding from routine toluidine red unheated serum test and treponema pallidum particle agglutination tests made us reevaluate the patient and led us to suspect syphilitic proctitis. This diagnosis was finally confirmed after successful penicillin G benzathine therapy which made surgery unnecessary.
Hai-Dong Ju,Xu-Tang Tao,Shi-Qing Xu,Wen-Tao Yu
Acta Crystallographica Section E , 2009, DOI: 10.1107/s1600536809014378
Abstract: In the title compound, C31H27N3, the cyclohexene ring has an envelope configuration. In the crystal structure, there is an 34 3 void around the inversion center, but the low electron density (0.13 e 3) in the difference Fourier map suggests no solvent molecule occupying this void. No hydrogen bonding is found in the crystal structure.
Ying Chen,Wen-tao Yu,Zhi-qiang Liu,Ping Yu
Acta Crystallographica Section E , 2012, DOI: 10.1107/s1600536812006095
Abstract: The complete molecule of the title compound, C28H28B2Br4O4, is generated by the application of a centre of inversion. In the molecule, the BO2 plane is perpendicular to that through the pyrene ring [dihedral angle = 86.27 (13)°]. In the crystal, molecules stack into columns along the b axis, the closest contact between these being of the type C—Br...π.
Quaternion Representation of Lorentz Transformation

WANG Zhen-Yu,FAN Wen-Tao,

数学物理学报(A辑) , 2010,
Abstract: 为一般Lorentz变换给出了一种新的形式简单的四元数表示. 其特点是所用四元数的分量要么是实数, 要么是纯虚数. 与以往的向量-张量表示和八元数表示(双四元数)相比, 有其明显的优点.
A Study of the Management System of Model Base on Generator in DSS

FAN Wen-tao,LI Yu-hong,

系统工程理论与实践 , 2001,
Abstract: According to the general character of DSS, the general theory of the model base and the management system of DSS are studied. A kind of methods on management system of the model base are presented on the basis of generator. The application of the methods on optimal decision DSS implies that it is useful.
Compact Microstrip-FED Antenna for Ultra-Wideband Applications
Xin Zhang;Yu-Yin Xia;Jie Chen;Wen-Tao Li
PIER Letters , 2009, DOI: 10.2528/PIERL08111404
Abstract: A novel printed monopole antenna for ultra-wideband (UWB) applications is presented, which is composed of wide slot and Y-shaped microstrip feed line with a pair of inverted-L-shaped notches. The prototype with an overall size of 26 mm × 30 mm × 2 mm achieves good impedance matching, constant gain, stable radiation patterns, and a relative impedance bandwidth of 110.6% is achieved, which covers 3.09-10.74 GHz.
Calculation of Antenna Mode Scattering Based on Method of Moments
Wen-Tao Wang;Ying Liu;Shu-Xi Gong;Yu-Jie Zhang;Xing Wang
PIER Letters , 2010, DOI: 10.2528/PIERL10051704
Abstract: The formation process of antenna mode scattering is analyzed, and a new prediction method to calculate the antenna mode scattering is proposed. Since the antenna mode scattering is essentially the reradiation of reflected energy, this reflected energy comes from the incident wave received by the antenna and reflects on the mismatched point of the feed network. Thus the calculation of the antenna mode scattering can be divided into three steps: 1. calculation of the antenna received energy; 2. calculation of the reflected energy from the feed network; 3. reradiation of this reflected energy. The numerical results of antenna mode scattering from a patch antenna and a dipole array are proposed to verify this approach.
Modified Differential Evolution Algorithm for Pattern Synthesis of Antenna Arrays
Xin Li;Wen-Tao Li;Xiao-Wei Shi;Jing Yang;Jian-Feng Yu
PIER , 2013, DOI: 10.2528/PIER13011207
Abstract: A modified differential evolution algorithm (MDE) for pattern synthesis of antenna arrays is proposed in this paper. By employing the novel strategies of best of random mutation and randomized local search, the convergence of standard differential evolution algorithm (SDE) is significantly accelerated. Five standard benchmark functions are optimized to testify the proposed algorithm by comparison with several other optimization algorithms. The numerical results verify the superior performance of the proposed MDE. Furthermore, the MDE is applied to two pattern synthesis examples, including a linear array and a cylindrical conformal array. Experiment results demonstrate that the proposed MDE has better performance than the other optimization methods in both of these two examples, which indicate the proposed algorithm is a competitive optimization algorithm in pattern synthesis.
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