Results 11 to 20 of about 1,814,913 (312)

A General Solution for Troesch′s Problem [PDF]

open access: yesMathematical Problems in Engineering, 2012
The homotopy perturbation method (HPM) is employed to obtain an approximate solution for the nonlinear differential equation which describes Troesch’s problem. In contrast to other reported solutions obtained by using variational iteration method, decomposition method approximation, homotopy analysis method, Laplace transform decomposition method, and ...
Vazquez-Leal, Hector   +7 more
openaire   +3 more sources

A general solution for opening double-stranded DNA for isothermal amplification. [PDF]

open access: yesSci Rep, 2016
Nucleic acid amplification is the core technology of molecular biology and genetic engineering. Various isothermal amplification techniques have been developed as alternatives to polymerase chain reaction (PCR).
Chen G   +6 more
europepmc   +2 more sources

The Role of Metaheuristics as Solutions Generators [PDF]

open access: yesSymmetry, 2021
Optimization problems are ubiquitous nowadays. Many times, their corresponding computational models necessarily leave out of consideration several characteristics and features of the real world, so trying to obtain the optimum solution can not be enough for a problem solving point of view.
Hanane El Raoui   +2 more
openaire   +4 more sources

Arbitrariness of the General Solution and Symmetries

open access: yesActa Applicandae Mathematicae, 1995
Results of the author [J. Math. Phys. 35, No. 1, 486-498 (1994; Zbl 0803.35143)] concerning the computation of the number of arbitrary functions in the general solution of a system of involutive PDEs are briefly reviewed. They are used to study normal systems and their symmetry reductions. The computation of the number of physical degrees of freedom in
Werner M. Seiler
openaire   +6 more sources

Virtual Screening, Structural Analysis, and Formation Thermodynamics of Carbamazepine Cocrystals

open access: yesPharmaceutics, 2023
In this study, the existing set of carbamazepine (CBZ) cocrystals was extended through the successful combination of the drug with the positional isomers of acetamidobenzoic acid.
Artem O. Surov   +5 more
doaj   +1 more source

Enhancing the Thermal Stability of Ionogels: Synthesis and Properties of Triple Ionic Liquid/Halloysite/MCC Ionogels

open access: yesMolecules, 2021
In this study, an ionic liquid (IL), 1-butyl-3-methylimidazolium acetate, was used to prepare ionogels with microcrystalline cellulose (MCC) and halloysite (Hal). SEM, XRD, TG, DSC, FTIR spectroscopy, conductometry and mechanical tests were used to study
Olga V. Alekseeva   +4 more
doaj   +1 more source

Algebraic Characterizations of Relationships between Different Linear Matrix Functions

open access: yesMathematics, 2023
Let f(X1,X2,…,Xk) be a matrix function over the field of complex numbers, where X1,X2,…,Xk are a family of matrices with variable entries. The purpose of this paper is to propose and investigate the relationships between certain linear matrix functions ...
Yongge Tian, Ruixia Yuan
doaj   +1 more source

Employment-related musculoskeletal complications experienced by the physical therapists in Bangladesh: a comprehensive cross-sectional case study

open access: yesBulletin of Faculty of Physical Therapy, 2022
Background Dentists, nurses, and physical therapists have all been associated with an increased risk of work-related diseases. The findings of studies in these different occupations might aid in the development of preventative measures.
Amran Hossain   +4 more
doaj   +1 more source

On Some Non-local Boundary Value and Internal Boundary Value Problems for the String Oscillation Equation

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
The work is devoted to the problem of setting new boundary and internal boundary value problems for hyperbolic equations. The consideration of these settings is given on the example of a wave equation.
A.Kh. Attaev
doaj   +1 more source

On a Rational $(P+1)$th Order Difference Equation with Quadratic Term

open access: yesUniversal Journal of Mathematics and Applications, 2022
In this paper, we derive the forbidden set and determine the solutions of the difference equation that contains a quadratic term \begin{equation*} x_{n+1}=\frac{x_{n}x_{n-p}}{ax_{n-(p-1)}+bx_{n-p}},\quad n\in\mathbb{N}_0, \end{equation*} where the ...
R Abo-zeıd, Messaoud Berkal
doaj   +1 more source

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