Results 21 to 30 of about 8,687,208 (379)

Application of the generalized point source method for solving boundary value problems of mathematical physics

open access: yesAdvanced Engineering Research, 2017
Introduction. The work objective is to develop a new universal numerical method for solving boundary value problems for linear elliptic equations. Materials and Methods .
Sergey Yu. Knyazev   +1 more
doaj   +1 more source

Bayesian methods of astronomical source extraction [PDF]

open access: yes, 2007
We present two new source extraction methods, based on Bayesian model selection and using the Bayesian Information Criterion (BIC). The first is a source detection filter, able to simultaneously detect point sources and estimate the image background. The
Pilbratt G. L.   +3 more
core   +2 more sources

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

open access: yesAdvanced 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   +1 more
doaj   +1 more source

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

open access: yesApplied 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   +5 more
doaj   +1 more source

Diffractive triangulation of radiative point sources [PDF]

open access: yes, 2017
We describe a general method to determine the location of a point source of waves relative to a twodimensional single-crystalline active pixel detector.
A. Winkelmann   +13 more
core   +5 more sources

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

open access: yes, 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

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

open access: yesCAAI 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   +8 more
doaj   +1 more source

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

open access: yesLand, 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   +8 more
doaj   +1 more source

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

open access: yes, 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   +50 more
core   +2 more sources

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