Results 31 to 40 of about 1,814,913 (312)

On the Solution of a General Transform [PDF]

open access: yesProceedings of the National Academy of Sciences, 1944
Not ...
openaire   +3 more sources

Ultrafunctions and Generalized Solutions [PDF]

open access: yesAdvanced Nonlinear Studies, 2013
Abstract The theory of distributions provides generalized solutions for problems which do not have a classical solution. However, there are problems which do not have solutions, not even in the space of distributions. As model problem you may think of
openaire   +3 more sources

A General Study of Fundamental Solutions in Aniotropicthermoelastic Media with Mass Diffusion and Voids

open access: yesInternational Journal of Applied Mechanics and Engineering, 2020
The present paper deals with the study of a fundamental solution in transversely isotropic thermoelastic media with mass diffusion and voids. For this purpose, a two-dimensional general solution in transversely isotropic thermoelastic media with mass ...
Vijay Chawla, Deepmala Kamboj
doaj   +1 more source

On the fractional differential equations with not instantaneous impulses

open access: yesOpen Physics, 2016
Based on some previous works, an equivalent equations is obtained for the differential equations of fractional-orderq ∈(1, 2) with non-instantaneous impulses, which shows that there exists the general solution for this impulsive fractional-order systems.
Zhang Xianmin   +5 more
doaj   +1 more source

Solution-based Wet Chemistry Gold Surface Coating for Soft Bioelectronics

open access: yes, 2022
This thesis successfully develop a general, solution-based, bottom-up wet chemistry gold surface coating strategy under mild conditions to construct strain-insensitive conductive fibers and highly stretchable conductive hydrogels, which demonstrates the ...
REN WANG (12025460)
core   +1 more source

Surfactant-Switched Positive/Negative Electrorheological Effect in Tungsten Oxide Suspensions

open access: yesMolecules, 2019
The electrorheological (ER) effect was experimentally observed in dielectric suspensions containing tungsten oxide (WO3) modified with surfactant molecules (sodium dodecyl sulfate (SDS) and dodecylamine (DDA)) in electric fields up to several kilovolts ...
Alexander V. Agafonov   +7 more
doaj   +1 more source

On a solvable class of nonlinear difference equations of fourth order

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2022
We consider a class of nonlinear difference equations of the fourth order, which extends some equations in the literature. It is shown that the class of equations is solvable in closed form explaining theoretically, among other things, solvability of ...
Stevo Stevic   +3 more
doaj   +1 more source

Solution Generating with Perfect Fluids [PDF]

open access: yesGeneral Relativity and Gravitation, 1997
We apply a technique, due to Stephani, for generating solutions of the Einstein-perfect fluid equations. This technique is similar to the vacuum solution generating techniques of Ehlers, Harrison, Geroch and others. We start with a ``seed'' solution of the Einstein-perfect fluid equations with a Killing vector.
Garfinkle, David   +2 more
openaire   +2 more sources

On the concept of general solution for impulsive differential equations of fractional-order q ∈ (2,3)

open access: yesOpen Mathematics, 2016
In this paper, we find the formula of general solution for a generalized impulsive differential equations of fractional-order q ∈ (2, 3).
Zhang Xianmin   +5 more
doaj   +1 more source

New Solid Forms of Nitrofurantoin and 4-Aminopyridine Salt: Influence of Salt Hydration Level on Crystal Packing and Physicochemical Properties

open access: yesMolecules, 2022
The crystallization of the poorly soluble drug nitrofurantoin (NFT) with 4-aminopyridine (4AmPy) resulted in three multicomponent solid forms with different hydration levels: anhydrous salt [NFT+4AmPy] (1:1), salt monohydrate [NFT+4AmPy+H2O] (1:1:1), and
Denis E. Boycov   +4 more
doaj   +1 more source

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