Results 21 to 30 of about 9,025,079 (233)

Application of the numerically obtained fundamental solutions in the field point-source method

Advanced Engineering Research, 2016
The work objective is to obtain an integral equation by which, using the known fundamental solution to the other equation, it is possible to find a fundamental solution to the linear elliptic equation. The concept of a numerical fundamental solution (NFS)
Sergey Yu. Knyazev, Elena E. Shcherbakova   +1 more
doaj   +1 more source

Fast Calculation of Acoustic Field Distribution for Ultrasonic Transducers Using Look-Up Table Method

Applied Sciences, 2022
The point source superposition method based on the Rayleigh integral model is time-consuming for calculating the three-dimensional spatial sound field.
Ji Wu, Kefeng Tu, Li Liang, Shuaihua Wang, Zi Wang, Guoqiang Lv   +5 more
doaj   +1 more source

Diffractive triangulation of radiative point sources [PDF]

, 2016
We describe a general method to determine the location of a point source of waves relative to a two-dimensional active pixel detector. Based on the inherent structural sensitivity of crystalline sensor materials, characteristic detector diffraction ...
Maneuski, Dzmitry, O'Shea, Val, Trager-Cowan, Carol, Vespucci, Stefano, Winkelmann, Aimo   +4 more
core   +6 more sources

Real time plasma equilibrium reconstruction in a Tokamak [PDF]

, 2008
The problem of equilibrium of a plasma in a Tokamak is a free boundary problemdescribed by the Grad-Shafranov equation in axisymmetric configurations. The right hand side of this equation is a non linear source, which represents the toroidal component of
B Faugeras, Blum J, Blum J, Blum J, Bosak K, Bosak K, C Boulbe, Ciarlet P, Grad H, Hansen C, J Blum, Lao L, Mercier C, Shafranov V, Tikhonov A   +14 more
core   +4 more sources

Accurate detection method of pig's temperature based on non‐point source thermal infrared image

CAAI Transactions on Intelligence Technology, 2021
Body temperature measurement is a very important task in the sow breeding process. The authors used an infrared camera to detect the temperature of the body surface of the sows, relying on calculating the average of the infrared image temperature in the ...
Zaiqin Zhang, Hao Wang, Tonghai Liu, Yueqiang Wang, Hang Zhang, Feiyan Yuan, Xue Yang, Shunlai Xu, Yuhuan Meng   +8 more
doaj   +1 more source

Sub-Watershed Parameter Transplantation Method for Non-Point Source Pollution Estimation in Complex Underlying Surface Environment

Land, 2021
The prevention and control of non-point source pollution is an important link in managing basin water quality and is an important factor governing the environmental protection of watershed water in China over the next few decades.
Xuekai Chen, Guojian He, Xiaobo Liu, Bogen Li, Wenqi Peng, Fei Dong, Aiping Huang, Weijie Wang, Qiuyue Lian   +8 more
doaj   +1 more source

Numerical investigation of the effect of crosswind on sound propagation outdoors [PDF]

, 2016
The effect of wind on sound propagation in the atmosphere has been studied extensively before with an emphasize on downwind sound propagation, typically representing worst-case scenarios.
Homikx, Maarten, Van Renterghem, Timothy
core   +1 more source

Method for calculating non-point source pollution distribution in plain rivers

Water Science and Engineering, 2011
The land area in a river network is divided into certain-scale square cells for the sake of precision, and, based on the physical mechanisms of rainfall-runoff processes and runoff pollution, the non-point source pollution from cells is estimated using ...
Long-xi Han, Fei Huo, Juan Sun
doaj   +1 more source

Motion parameter estimation of multitonal sources with a single hydrophone [PDF]

JASA Express Letters, 2021
In this letter, a method is proposed to estimate the motion parameters of a multitonal source with a single hydrophone when only the acquisition time of the pressure field is known.
Jing Chi, Dazhi Gao, Xuegang Zhang, Xinyao Zhang, Zhizhuan Wang   +4 more
doaj   +1 more source

HerMES: point source catalogues from Herschel-SPIRE observations II [PDF]

, 2013
Key Programme on the Herschel Space Observatory. With a wedding cake survey strategy, it consists of nested fields with varying depth and area totalling ∼380 deg2.
A. Conley, A. J. Smith, B. Schulz, Béthermin, Béthermin, C. Clarke, Chapin, Cortese, D. Farrah, Diolaiti, Dowell, G. Magdis, G. Marsden, Glenn, Griffin, Hobson, I. G. Roseboom, J. Bock, Jarrett, K. Guo, L. Marchetti, L. Wang, Levenson, M. J. Page, M. Vaccari, M. Viero, M. Zemcov, Nguyen, Oliver, Oliver, Ott, P. Norberg, Pascale, Paturel, Pilbratt, Poglitsch, Roehlly, Roseboom, Roseboom, S. Heinis, S. J. Oliver, Savage, Smith, Smith, Swinyard, ter, Tibshirani, V. Buat, Viero, Y. Roehlly, Zou   +50 more
core   +2 more sources