Results 11 to 20 of about 5,581,859 (291)

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   +3 more sources

Family of Quantum Sources for Improving Near Field Accuracy in Transducer Modeling by the Distributed Point Source Method

open access: yesApplied Sciences, 2016
The distributed point source method, or DPSM, developed in the last decade has been used for solving various engineering problems—such as elastic and electromagnetic wave propagation, electrostatic, and fluid flow problems.
Dominique Placko   +2 more
doaj   +3 more sources

Estimation of non-point source pollution loads with flux method in Danjiangkou Reservoir area, China

open access: yesWater Science and Engineering, 2017
The estimation of non-point source pollution loads into the Danjiangkou Reservoir is highly significant to environmental protection in the watershed. In order to overcome the drawbacks of traditional watershed numerical models, a base flow separation ...
Xiao-kang Xin, Wei Yin, Ke-feng Li
doaj   +3 more sources

An Automatic Recognition and Positioning Method for Point Source Targets on Satellite Images

open access: yesISPRS International Journal of Geo-Information, 2018
Currently, the geometric and radiometric calibration of on-board satellite sensors utilizes different ground targets using some form of manual intervention.
Kai Li   +3 more
doaj   +3 more sources

Proximal methods for point source localisation

open access: yesJournal of Nonsmooth Analysis and Optimization, 2023
Point source localisation is generally modelled as a Lasso-type problem on measures. However, optimisation methods in non-Hilbert spaces, such as the space of Radon measures, are much less developed than in Hilbert spaces. Most numerical algorithms for point source localisation are based on the Frank-Wolfe conditional gradient method, for which ad hoc ...
openaire   +3 more sources

Solving eigenvalues problems for Helmholtz equation by point-source method

open access: yesAdvanced Engineering Research, 2016
A method of problem solution of the eigenvalues and eigenfunctions for the Helmholtz equation in the domains with arbitrary configuration is worked out.
Elena E. Shcherbakova
doaj   +1 more source

Regional Non-point Source Pollution Control Method: A Design of Ecological Compensation Standards

open access: yesFrontiers in Environmental Science, 2021
Reasonable ecological compensation standard is the key to solve farmland non-point source pollution. In the design of compensation standards, the current investigation included ecological benefits in selecting the experimental method.
Shibao Lu   +3 more
doaj   +1 more source

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

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

Development of point source method and its practical significance

open access: yesWater Science and Engineering, 2009
The advantages of Reichardt's hypothesis in dealing with single and multiple circular jets in a stagnant environment are highlighted. The stages involved in the development of the point source method, an offshoot of the new hypothesis, are presented ...
Bidya Sagar Pani
doaj   +1 more source

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