Results 231 to 240 of about 278,077 (263)

A property-dependent Perfectly Matched Layer with a single additional layer for Maxwell’s equations in finite difference frequency domains

Computer Methods in Applied Mechanics and Engineering, 2020
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Dongqi Ji, Qi Wang, Zhangxing Chen, Thomas Grant Harding, Mingzhe Dong, Chenqi Ge, Zhiping Li, Fengpeng Lai   +7 more
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Equation of State for Monolayers with Additional Phase Transition between Condensed Phases of Different Compressibility

The Journal of Physical Chemistry B, 2009
An improved model for the equation of state for Langmuir monolayers proposed in J. Phys. Chem. B 1999, 103, 145 is introduced for the case where two or more phase transitions occur in the monolayer. The model allows the theoretical description of the phase transition between the two condensed phases under the realistic precondition that the phase ...
Fainerman, V., Vollhardt, D.
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Fuzzy stability results of additive functional equation in different approaches

2020
In this paper, we investigate some stability results of the following finite dimensional additive functional equation f Xn i=1 kxi ! + Xn j=1 f  −kxj + Xn i=1;i6=j kxi   = (n − 1) "Xn i=1 (2i − 1)f(xi) # where n is the positive integer with N − {0, 1, 2} and k is the only odd positive integers, in Fuzzy Normed space using direct and fixed point ...
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Comparison of additional second-order terms in finite-difference Euler equations and regularized fluid dynamics equations

Computational Mathematics and Mathematical Physics, 2017
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On Conservative Finite-Difference Schemes for the One-Dimensional MHD Equations in Cylindrical Geometry Possessing Additional Conservation Laws

Proceedings of the International Conference Modern Achievements in Symmetries of Differential Equations (Symmetry 2022), 2022
Based on recent results in the construction of conservative finite-difference schemes, a new scheme for one-dimensional isentropic flows of polytropic gas in cylindrical geometry in the presence of a radial magnetic field is presented. The proposed scheme adds to the list of recently constructed schemes, and completes the consideration of conservative ...
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Joint Identifiability of Coefficients of Linear Difference Equations of Object and Additive Disturbances

Journal of Mathematical Sciences, 2017
We study the problem of parametric identification of an object described by a system of linear difference equations by a set of observations of solutions provided that there are additive deterministic disturbances in the observations. The disturbances are also described by linear difference equations of a given order with uncertain initial conditions ...
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[Additive aboveground biomass equations based on different predictors for natural Tilia Linn].

Ying yong sheng tai xue bao = The journal of applied ecology, 2019
Biomass is a basic quantitative character of forest ecosystem. Biomass data are foundation of researching many forestry and ecology problems. Accurate quantification of tree biomass is critical and essential for calculating carbon storage, as well as for studying climate change, forest health, forest productivity, nutrient cycling, etc.
Jia Hui, Wang, Feng Ri, Li, Li Hu, Dong
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H-U-R Stability Results of Mixed-Type Additive-Quadratic Functional Equation in Fuzzy β-Normed Spaces by Two Different Approaches

2021
Fuzzy set theory is a powerful hand set for modelling uncertainty and vagueness in various problems arising in the field of science and engineering. It has also very useful applications in various fields. Also, stability problem of a functional equation was first posed by Ulam which was answered by Hyers and then generalized by Aokiand Rassias for ...
K. Tamilvanan, K. Loganathan, N. Revathi
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Stochastic Formulation of the General Differential Difference Equation for Addition-Growth Kinetic Processes—Example of Anionic Polymerization

Journal of Macromolecular Science: Part A - Chemistry, 1969
Abstract In an effort to lend some insight into the probabilistic nature of step-growth kinetic processes, the differential rate expression for anionic polymerization with one rate constant is derived from stochastic theory.
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Response of stochastic dynamical systems driven by additive Gaussian and Poisson white noise: Solution of a forward generalized Kolmogorov equation by a spectral finite difference method

Computer Methods in Applied Mechanics and Engineering, 1999
The authors consider a stochastic differential equation which describes a class of time-independent discrete dynamical systems driven by additive linear combinations of Gaussian and Poisson white noises. The aim is to construct a finite difference scheme for solving the corresponding Fokker-Planck equation. To this end, one looks for numerical solution
Wojtkiewicz, Steven F., Johnson, Erik A., Bergman, Lawrence A., Grigoriu, Mircea, Spencer, Billie F. jun.   +4 more
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