Results 41 to 50 of about 55,957 (170)

Unsteady hydromagnetic-free convection flow with suction/injection

Journal of Taibah University for Science, 2019
This article analyses the unsteady hydromagnetic free convection flow near impulsive as well as accelerated motion of the infinite vertical porous plate.
Basant K. Jha, Luqman A. Azeez, Michael O. Oni   +2 more
doaj   +1 more source

Some Remarks About the Two-Matrix Penner Model and the Kazakov-Migdal Model

, 1993
I consider the Hermitean two-matrix model with a logarithmic potential which is associated in the one-matrix case with the Penner model. Using loop equations I find an explicit solution of the model at large N (or in the spherical approximation) and ...
Alfaro, Brézin, Chaudhuri, Chekhov, Daul, Distler, Dobroliubov, Douglas, Gava, Gilbert, Gross, Kazakov, Kazakov, Kharchev, Makeenko, Migdal, Migdal, Migdal, Penner, Penner, Staudacher, Tan, Tan, Yu. Makeenko   +23 more
core   +1 more source

Regge Calculus as a Fourth Order Method in Numerical Relativity [PDF]

, 1995
The convergence properties of numerical Regge calculus as an approximation to continuum vacuum General Relativity is studied, both analytically and numerically.
Barrett J W, Barrett J W, Brewin L, Brewin L, Cheeger J, Galassi M, Hartle J B, Mark A Miller, Miller M A, Miller W A, Misner C W, Press W H, Regge T, Sorkin R D, Tuckey P A, Williams R M   +15 more
core   +3 more sources

Delta-shocks and vacuums in zero-pressure gas dynamics by the flux approximation

, 2014
In this paper, firstly, by solving the Riemann problem of the zero-pressure flow in gas dynamics with a flux approximation, we construct parameterized delta-shock and constant density solutions, then we show that, as the flux perturbation vanishes, they ...
Liu, Jinjing, Yang, Hanchun
core   +1 more source

Large Nc QCD and Harmonic Sums

, 2011
In the Large-Nc limit of QCD, two--point functions of local operators become Harmonic Sums. I review some properties which follow from this fact and which are relevant for phenomenological applications.
A Manohar, C Vafa, C Vafa, D Espriu, D Greynat, E Rafael de, E Rafael de, E Witten, E Witten, E Witten, EDUARDO DE RAFAEL, G Ecker, G Ecker, Gt’ Hooft, G’t Hooft, J Bijnens, J Comellas, J Gasser, J Wess, J-Ph Aguilar, JF Donoghue, M Golterman, M Gonzalez-Alonso, M Knecht, M Knecht, MA Shifman, O Catà, P Masjuan, Ph Flajolet, S Coleman, S Friot, S Peris, S Weinberg, S Weinberg, T Das, T Hambye, V Cirigliano, Y Nambu   +37 more
core   +3 more sources

2009 Ford Mustang Performance Test

Undergraduate Journal of Mathematical Modeling: One + Two, 2009
Our goal is to find the time required for a 2009 Ford Mustang to accelerate from rest to 88 feet per second. We begin with three equations involving force, velocity, and force inverse, which is a value derived from Newton's Law, F=ma.
Daniel Fernandes
doaj   +1 more source

Optimization of 3D‐Printed Structured Packings—Current State and Future Developments

Chemie Ingenieur Technik, EarlyView.
This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke, Sebastian Blauth, Christian Leithäuser, Thomas Grützner   +3 more
wiley   +1 more source

Restricted Tweedie stochastic block models

Canadian Journal of Statistics, EarlyView.
Abstract The stochastic block model (SBM) is a widely used framework for community detection in networks, where the network structure is typically represented by an adjacency matrix. However, conventional SBMs are not directly applicable to an adjacency matrix that consists of nonnegative zero‐inflated continuous edge weights.
Jie Jian, Mu Zhu, Peijun Sang
wiley   +1 more source

Generalized MHD Couette flows in an annuli: the Riemann-sum approximation approach

Science World Journal, 2022
In this study, a mathematical analysis is presented for unsteady MHD generalized Couette flow of an incompressible and electrically conducting fluid in an annulus formed by two concentric cylinders of infinite length. The governing equations are obtained and solved using Laplace transform and the Riemann sum approximation method.
Isa, Sani, Jha, Basant K.
openaire   +1 more source

An efficient algorithm for accelerating the convergence of oscillatory series, useful for computing the polylogarithm and Hurwitz zeta functions

, 2007
This paper sketches a technique for improving the rate of convergence of a general oscillatory sequence, and then applies this series acceleration algorithm to the polylogarithm and the Hurwitz zeta function.
A. Jonquière, C. Brezinski, E.A. Karatsuba, E.J. Weniger, E.P. Balanzario, G. Soff, H. Cohen, H. Hasse, Linas Vepštas, R. Šleževičiene, T.M. Apostol   +10 more
core   +5 more sources