Results 81 to 90 of about 9,025,079 (233)

NUMERICAL SOLUTION TO BOUNDARY PROBLEMS FOR POISSON EQUATION BY POINTSOURCE METHOD

Advanced Engineering Research, 2014
The aim o f t his p a p e r is t h e e fficie n c y im p r o v e m e n t o f o n e o f t h e m o s t a d v a n c e d t e c h niq u e s o f s olvin g t h e ellip tic b o u n d a r y v alu e p r o ble m s — t h e field p oin t- s o u r c e m e t h o d d e ...
Sergey Yuryevich Knyazev, Elena Evgenyevna Shcherbakova, Alesha Aleksandrovich Yengibaryan   +2 more
doaj   +1 more source

Development of a GPU-based Monte Carlo dose calculation code for coupled electron-photon transport

, 2010
Monte Carlo simulation is the most accurate method for absorbed dose calculations in radiotherapy. Its efficiency still requires improvement for routine clinical applications, especially for online adaptive radiotherapy.
Amitava Majumdar, Bielajew A F Hirayama H Nelson W R Rogers D W O, Briesmeister J F, Dongju Choi, Gu X, Gu X, Jacques R Taylor R Wong J McNutt T, Josep Sempau, Lensch H Strzodka R, Li J S, Li M, Ma C M, Men C, Nelson W R Hirayama H Rogers D W O, NVIDIA, Salvat F Fernández-Varea J M Baró J Sempau J, Salvat F Fernández-Varea J M Sempau J, Sempau J, Sharp G C, Steve B Jiang, Woodcock E Murphy T Hemmings P Longworth S, Xu F, Xuejun Gu, Xun Jia, Yan G R   +24 more
core   +1 more source

A New Method for Determining Optimal Regularization Parameter in Near-Field Acoustic Holography

Shock and Vibration, 2018
Tikhonov regularization method is effective in stabilizing reconstruction process of the near-field acoustic holography (NAH) based on the equivalent source method (ESM), and the selection of the optimal regularization parameter is a key problem that ...
Yue Xiao
doaj   +1 more source

Reconstruction of the equilibrium of the plasma in a Tokamak and identification of the current density profile in real time [PDF]

, 2011
The reconstruction of the equilibrium of a plasma in a Tokamak is a free boundary problem described by the Grad-Shafranov equation in axisymmetric configuration.
Blum, Jacques, Boulbe, Cedric, Faugeras, Blaise   +2 more
core   +4 more sources

Three-intensity decoy state method for device independent quantum key distribution with basis dependent errors

, 2013
We study the measurement device independent quantum key distribution (MDIQKD) in practice with limited resource, when there are only 3 different states in implementing the decoy-state method and when there are basis dependent coding errors.
C. H. Bennett, D. Gottesman, D. Mayers, M. Dusek, Xiang-Bin Wang   +4 more
core   +1 more source

A Novel DOA Estimation Method for a Far-Field Narrow-Band Point Source via the Conventional Beamformer

Journal of Marine Science and Engineering
Far-field narrow-band Direction-of-Arrival (DOA) estimation is a practical challenge in passive and active sonar applications. While the Conventional Beamformer (CBF) is a robust Maximum Likelihood Estimator (MLE), its precision is inherently constrained
Xuejie Dai, Shuai Yao
doaj   +1 more source

Development and application of cobalt source layout interface program for gamma irradiation device

Fushe yanjiu yu fushe gongyi xuebao
This study uses the MATLAB App Designer software based on the principles of point kernel integration and the Monte Carlo method to design an interface program for the cobalt source layout effect of gamma irradiation equipment.
LIU Jiangping, CHEN Qiang
doaj   +1 more source

Compensation for the source drift of a free-electron laser beamline by adjusting the fixed-focus constant of the grating monochromator

Journal of Synchrotron Radiation
For large-scale free-electron laser facilities based on linear accelerators, the laser saturation point is not frequently fixed in the undulator, which will cause a longitudinal source point drift of the beamline. The longitudinal source point drift will
Chaofan Xue, Lian Xue, Yong Wang, Renzhong Tai   +3 more
doaj   +1 more source

Point-to-Interval Prediction Method for Key Soil Property Contents Utilizing Multi-Source Spectral Data

Agronomy
Key soil properties play pivotal roles in shaping crop growth and yield outcomes. Accurate point prediction and interval prediction of soil properties serve as crucial references for making informed decisions regarding fertilizer applications ...
Shuyan Liu, Dongyan Huang, Lili Fu, Shengxian Wu, Yanlei Xu, Yibing Chen, Qinglai Zhao   +6 more
doaj   +1 more source

Method of Harmonic Source Identification Based on Harmonic Apparent Power

E3S Web of Conferences, 2018
Based on the harmonic apparent power defined by the IEEE 1459-2010 power standard, the paper proposed a new method of identifying the main harmonic source at the point of common coupling (PCC).
Xu Lin, Lin Rui Xing, Xu Shuang Ting
doaj   +1 more source