Zobrazeno 1 - 10
of 71
pro vyhledávání: '"02.60.-x"'
Autor:
Skala, Vaclav
This paper describes a novel and fast, simple and robust algorithm with O(N) expected complexity which enables to decrease run time needed to find the maximum distance of two points in E2. It can be easily modified for the E3 case in general. The pro
Externí odkaz:
http://arxiv.org/abs/2209.01543
Autor:
Wang Zhaoqiang, Chen Xin
Publikováno v:
Open Physics, Vol 17, Iss 1, Pp 950-959 (2019)
On the basis of the Naheng Reservoir Project, the stress, strain, and deformation of Naheng Reservoir cemented sand and gravel dam are simulated numerical simulation and structural model test. The stress and deformation laws of the dam under the comb
Externí odkaz:
https://doaj.org/article/fc1f9365cf444cc28adce3ca2d85f2d5
Autor:
Zhang Wei, Yu Yandong
Publikováno v:
Open Physics, Vol 17, Iss 1, Pp 497-504 (2019)
In order to improve quality and reveal the law of precision forging, closed-die forging technology is used in this paper to conduct a numerical analysis of the forming process of aluminum alloy connecting rod by the DEFORM software. Forming effects u
Externí odkaz:
https://doaj.org/article/4b052d2f24104db9a958bf7da7a698e3
Publikováno v:
Open Physics, Vol 17, Iss 1, Pp 41-47 (2019)
There are many non-probability factors affecting financial markets and the return on risk assets is fuzzy and uncertain. The authors propose new risk measurement methods to describe or measure the real investment risks. Currently many scholars are st
Externí odkaz:
https://doaj.org/article/c49f8dd8711041fbb44dde643b84499d
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Publikováno v:
Open Engineering, Vol 8, Iss 1, Pp 227-242 (2018)
This paper analytically investigates the flow as well as the chemically reactive solute transfer problem in a viscous fluid. The motion equations are reduced to a nonlinear ordinary differential equations system using the similarity transformations.
Externí odkaz:
https://doaj.org/article/4bcbac9dc6e64ed395b4899f8646bb1a
Publikováno v:
Open Engineering, Vol 8, Iss 1, Pp 261-274 (2018)
The viscous flow induced by a stretching surface with partial slip is investigated. The flow is governed by a third-order nonlinear differential equation, corresponding to the planar and axisymmetric stretching. The derived equation of motion is solv
Externí odkaz:
https://doaj.org/article/b9b6425665f7428bb617ce690d1fce60
Autor:
Ene Remus-Daniel, Pop Camelia
Publikováno v:
Open Physics, Vol 15, Iss 1, Pp 819-826 (2017)
A Hamilton-Poisson realization of the MHD Jeffery-Hamel fluid flow problem is proposed. Tthe nonlinear stability of the equilibrium states is discussed. A comparison between the analytic solutions obtained using the OHAM method and the exact solution
Externí odkaz:
https://doaj.org/article/3524f37b65194e33b55aedd9c177a6e8
Autor:
Costamagna Eugenio, Barba Paolo Di
Publikováno v:
Open Physics, Vol 15, Iss 1, Pp 839-844 (2017)
Field singularities in electrostatic and magnetostatic fields require special attention in field calculations, and today finite element methods are normally used, both in homogeneous and in inhomogeneous dielectric cases. Conformal mappings are a tra
Externí odkaz:
https://doaj.org/article/4aa11a6f991749b8bbfe275157606c43
Autor:
Masuda Hiroshi, Kanda Yutaro, Okamoto Yoshifumi, Hirono Kazuki, Hoshino Reona, Wakao Shinji, Tsuburaya Tomonori
Publikováno v:
Open Physics, Vol 15, Iss 1, Pp 845-850 (2017)
It is very important to design electrical machineries with high efficiency from the point of view of saving energy. Therefore, topology optimization (TO) is occasionally used as a design method for improving the performance of electrical machinery un
Externí odkaz:
https://doaj.org/article/493878cdc5764046990577c9f8cc096d