Search Results - modified method of variable separation

A modified method of variable separation for the problem of TE wave diffraction on a diffraction grating with two-layer lines in the period

Authors: Yu. G. Smirnov V. Yu. Martynova

Source: Учёные записки Казанского университета: Серия Физико-математические науки, Vol 167, Iss 3, Pp 531-546 (2025)

Subject Terms: diffraction grating, modified method of variable separation, electromagnetic te wave, diffraction efficiency, Mathematics, QA1-939

File Description: electronic resource

Relation: https://uzakufismat.elpub.ru/jour/article/view/227; https://doaj.org/toc/2541-7746; https://doaj.org/toc/2500-2198

Access URL: https://doaj.org/article/4fc3f84554b74b7c9898d0485966bf6a

A modified fractional Landweber method for a backward problem for the inhomogeneous time-fractional diffusion equation in a cylinder.

Authors: Yang, Shuping Xiong, Xiangtuan Han, Yaozong

Source: International Journal of Computer Mathematics. Nov2020, Vol. 97 Issue 11, p2375-2393. 19p.

Subject Terms: Heat equation, Regularization parameter, Separation of variables

Some Remarks on the Riccati Equation Expansion Method for Variable Separation of Nonlinear Models.

Authors: Zhang, Yu-Peng Dai, Chao-Qing

Source: Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences. Oct2015, Vol. 70 Issue 10, p835-842. 8p.

Subject Terms: *RICCATI equation, *KORTEWEG-de Vries equation, *MATHEMATICAL variables, *NONLINEAR statistical models, *ARBITRARY constants

ON A METHOD FOR SOLVING THE PROBLEM OF ELECTROMAGNETIC WAVE DIFFRACTION ON A DIFFRACTION GRATING

Authors: E. V. Gusarova Yu. G. Smirnov A. A. Tsupak

Source: Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 3 (2020)

Subject Terms: electromagnetic waves, diffraction gratings, variable separation method, Physics, QC1-999, Mathematics, QA1-939

File Description: electronic resource

Relation: https://doaj.org/toc/2072-3040

Access URL: https://doaj.org/article/64b1939903d14febacd036c636c4a98b

Study of diffraction efficiency of diffraction gratings by the modified method of variables separation

Authors: Yu.G. Smirnov V.Yu. Martynova M.A. Moskaleva et al.

Source: Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 4 (2022)

Subject Terms: diffraction gratings, modified method of separation of variables, electromagnetic te-waves, diffraction efficiency, Physics, QC1-999, Mathematics, QA1-939

File Description: electronic resource

Relation: https://doaj.org/toc/2072-3040

Access URL: https://doaj.org/article/0d847c1c472a42f69f15eb9d16d223aa

A modified method for separating variables in the diffraction problem of TM-polarized wave on diffraction grating

Authors: Yuriy G. Smirnov

Source: Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 1 (2023)

Subject Terms: diffraction gratings, modified method of separation of variables, electromagnetic tm-waves, differential equations, Physics, QC1-999, Mathematics, QA1-939

File Description: electronic resource

Relation: https://doaj.org/toc/2072-3040

Access URL: https://doaj.org/article/802d6c14a2a945f69f28bd58467d3b73

Investigating exact solutions for the (3+1)-dimensional KdV-CBS equation: A non-traveling wave approach

Authors: Shami A. M. Alsallami

Source: AIMS Mathematics, Vol 10, Iss 3, Pp 6853-6872 (2025)

Subject Terms: modified generalized variable separation technique, non-traveling solution, symbolic computation, kdv–calogero–bogoyavlenskii–schiff equation, Mathematics, QA1-939

File Description: electronic resource

Relation: https://doaj.org/toc/2473-6988

Access URL: https://doaj.org/article/e48a5300df74490abb6ccb483e81d84a

Optimization of parameters of multilayer diffraction gratings using needle variations

Authors: V.Yu. Martynova Yu.G. Smirnov A.V. Tikhonravov

Source: Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 4 (2022)

Subject Terms: diffraction gratings, modified method of separation of variables, electromagnetic te-waves, diffraction efficiency, optimization, needle variations, Physics, QC1-999, Mathematics, QA1-939

File Description: electronic resource

Relation: https://doaj.org/toc/2072-3040

Access URL: https://doaj.org/article/b345d9861b9b4bcf95d74e7df1ac6884

Preliminary examination of oil bonding at sand surfaces and its influence on hot water separation

Contributors: Miller, J

Source: Conference: Eastern oil shale symposium, oil shale, tar sands, heavy oil,Lexington, KY (United States),13-15 Nov 1991; Other Information: PBD: [1991]

File Description: Medium: ED; Size: 8 p.

Access URL: http://www.osti.gov/scitech/servlets/purl/10143017

Study on the effect of humidity on formaldehyde emission parameters of wood-based panels.

Authors: Chen, Jiani Zheng, Xiaohong Song, Chenxue et al.

Source: Indoor & Built Environment; Jul2024, Vol. 33 Issue 6, p1087-1099, 13p

Subject Terms: FORMALDEHYDE, HUMIDITY, SEPARATION of variables, INDOOR air pollution, UREA-formaldehyde resins, VOLATILE organic compounds

An efficient and accurate Fourier pseudo-spectral method for the nonlinear Schrödinger equation with wave operator.

Authors: Li, Shan Wang, Tingchun Wang, Jialing et al.

Source: International Journal of Computer Mathematics. Feb2021, Vol. 98 Issue 2, p340-356. 17p.

Subject Terms: Nonlinear wave equations, Nonlinear Schrödinger equation, Separation of variables, Operator equations, Schrödinger equation, Numerical analysis, Pseudospectrum, Fast Fourier transforms

Approximate Solutions of the Boussinesq Equation for Horizontal Unconfined Aquifers During Pure Drainage Phase.

Authors: Akylas, Evangelos Gravanis, Elias

Source: Water (20734441); Oct2024, Vol. 16 Issue 20, p2984, 23p

Subject Terms: BOUSSINESQ equations, SEPARATION of variables, WATER table, ANALYTICAL solutions, AQUIFERS

Improvement of the properties of zeolites for application in the nitrogen and oxygen separation process and in acid catalysis

Authors: Salla Cabau, Isabel

Contributors: University/Department: Universitat Rovira i Virgili. Departament de Química Física i Inorgànica

Thesis Advisors: Salagre Carnero, Pilar, Cesteros Fernández, Yolanda

Source: TDX (Tesis Doctorals en Xarxa)

Subject Terms: separació catàlisis, adsorció, zeolites

File Description: application/pdf

Access URL: http://www.tdx.cat/TDX-0124107-141617
http://hdl.handle.net/10803/9079

Simultaneous Separation and Determination of Nine Active Ingredients in Sanyetangzhiqing by Cyclodextrin-Modified Micellar Electrokinetic Capillary Electrophoresis-Diode Array Detector.

Authors: Wang, Shanshan Zhou, Rui Du, Kunze et al.

Source: Journal of Analytical Methods in Chemistry. 7/12/2023, p1-11. 11p.

Subject Terms: *QUALITY control, MICELLAR electrokinetic chromatography, CHLOROGENIC acid, ANTILIPEMIC agents, DETECTORS, PHENOLIC acids

Effects on Recovery of Children of Intravenous Formulation of Fentanyl Citrate and Midazolam Orally for Premedication

Contributors: Ahmed Shehab, MD, lecturer Of Anaesthesia and Surgical intensive care

Source: Effects on Recovery of Children Undergoing Elective Surgery: Comparison of Intravenous Formulation of Fentanyl Citrate and Midazolam Administered Orally for Premedication
Bergendahl H, Lonnqvist PA, Eksborg S. Clonidine in paediatric anaesthesia: review of the literature and comparison with benzodiazepines for premedication. Acta Anaesthesiol Scand. 2006 Feb;50(2):135-43. doi: 10.1111/j.1399-6576.2006.00940.x.

Spatially Homogeneous Models Stäckel Spaces of Type (2.1).

Authors: Osetrin, E. K. Osetrin, K. E. Filippov, A. E.

Source: Russian Physics Journal; Jul2020, Vol. 63 Issue 3, p410-419, 10p

Subject Terms: EQUATIONS of motion, SEPARATION of variables, EIKONAL equation, PARTICLE motion, COSMOLOGICAL constant, EINSTEIN field equations, HAMILTON-Jacobi equations

Hydrodynamic performance of vertical cylindrical wave energy absorbers in front of a vertical wall.

Authors: Li, Ai-jun Liu, Yong Wang, Xin-yu

Source: Physics of Fluids; Apr2024, Vol. 36 Issue 4, p1-28, 28p

Subject Terms: WAVE energy, SEPARATION of variables, WAVE diffraction, POTENTIAL flow, STANDING waves, OFFSHORE structures, OCEAN waves

The application bispherical coordinate in Schrödinger equation for Mobius square plus modified Yukawa potential using Nikiforov Uvarov Functional Analysis (NUFA) method

Authors: Briant Sabathino Harya Wibawa A Suparmi C Cari

Source: Journal of Physics: Theories and Applications, Vol 4, Iss 2, Pp 48-58 (2020)

Subject Terms: schrödinger equation, bispherical coordinate, mobius square plus modified yukawa potential, nikiforov uvarov functional analysis (nufa) method, Physics, QC1-999

File Description: electronic resource

Relation: https://jurnal.uns.ac.id/jphystheor-appl/article/view/42544; https://doaj.org/toc/2549-7316; https://doaj.org/toc/2549-7324

Access URL: https://doaj.org/article/759ae945236042ada4eda39226163e3e

Solutions to the complex shifted reverse space-time modified Korteweg-de Vries equation.

Authors: Wu, Lifei Zhang, Yi

Source: Physics Letters A. Feb2023, Vol. 460, pN.PAG-N.PAG. 1p.

Subject Terms: *KORTEWEG-de Vries equation, *SEPARATION of variables, *SPACETIME, *DARBOUX transformations, *ROGUE waves, *SOLITONS

Explicit high-order structure-preserving algorithms for the two-dimensional fractional nonlinear Schrödinger equation.

Authors: Fu, Yayun Shi, Yanhua Zhao, Yanmin

Source: International Journal of Computer Mathematics. May2022, Vol. 99 Issue 5, p877-894. 18p.

Subject Terms: *Algorithms, Nonlinear Schrödinger equation, Runge-Kutta formulas, Schrödinger equation, Separation of variables, Hamiltonian systems