Results 21 to 30 of about 3,202,238 (369)

On the Numerical Solution of 1D and 2D KdV Equations Using Variational Homotopy Perturbation and Finite Difference Methods

open access: yesMathematics, 2022
The KdV equation has special significance as it describes various physical phenomena. In this paper, we use two methods, namely, a variational homotopy perturbation method and a classical finite-difference method, to solve 1D and 2D KdV equations with ...
Abey Sherif Kelil, Appanah Rao Appadu
doaj   +1 more source

Nonisothermal homogeneous nucleation [PDF]

open access: yes, 1992
Classical homogeneous nucleation theory is extended to nonisothermal conditions through simultaneous cluster mass and energy balances. The transient nucleation of water vapor following a sudden increase in saturation ratio is studied by numerically ...
Seinfeld, J. H., Wyslouzil, B. E.
core   +1 more source

Semi-Quantitative Evaluation of Asymmetricity of Dialysis Membrane Using Forward and Backward Ultrafiltration

open access: yesMembranes, 2022
Performance of the dialysis membrane is strongly dependent upon the physicochemical structure of the membrane. The objective of this study is to devise a new in vitro evaluation technique to quantify the physicochemical structures of the membrane.
Akihiro C. Yamashita   +5 more
doaj   +1 more source

Homogeneous Gold-Catalyzed Oxidation Reactions.

open access: yesChemical Reviews, 2021
Homogeneous gold catalysis has experienced extraordinary development since the dawn of this millennium. Oxidative gold catalysis is a vibrant and fertile subfield and has over the years delivered a diverse array of versatile synthetic methods of ...
Zhitong Zheng   +6 more
semanticscholar   +1 more source

Homogeneous operators and homogeneous integral operators [PDF]

open access: yesMathematical Methods in the Applied Sciences, 2021
We introduce and study in a general setting the concept of homogeneity of an operator and, in particular, the notion of homogeneity of an integral operator. In the latter case, homogeneous kernels of such operators are also studied. The concept of homogeneity is associated with transformations of a measure—measure dilations, which are most natural in ...
Zhirayr Avetisyan, Alexey Karapetyants
openaire   +2 more sources

Dinuclear Gold Complexes Supported by Wide Bite Angle Diphosphines for Preorganization-Induced Selective Dual-Gold Catalysis

open access: yesInorganics, 2019
The synthesis, reactivity, and potential of well-defined dinuclear gold complexes as precursors for dual-gold catalysis is explored. Using the preorganizing abilities of well-known wide bite angle diphosphine ligands, DBFPhos and DPEPhos, dinuclear Au(I)&
Marianne Lankelma   +3 more
doaj   +1 more source

Intelligent Measurement of Void Fractions in Homogeneous Regime of Two Phase Flows Independent of the Liquid Phase Density Changes

open access: yesFractal and Fractional, 2023
Determining the amount of void fraction of multiphase flows in pipelines of the oil, chemical and petrochemical industries is one of the most important challenges.
Abdullah M. Iliyasu   +4 more
doaj   +1 more source

Catalyzing Electrosynthesis: A Homogeneous Electrocatalytic Approach to Reaction Discovery.

open access: yesAccounts of Chemical Research, 2020
Electrochemistry has been used as a tool to drive chemical reactions for over two centuries. With the help of an electrode and a power source, chemists are bestowed with an imaginary reagent whose potential can be precisely dialed in.
Juno C. Siu, Niankai Fu, Song Lin
semanticscholar   +1 more source

Porphyrin Co(III)-Nitrene Radical Mediated Pathway for Synthesis of o-Aminoazobenzenes

open access: yesMolecules, 2018
Azobenzenes are versatile compounds with a range of applications, including dyes and pigments, food additives, indicators, radical reaction initiators, molecular switches, etc.
Monalisa Goswami, Bas de Bruin
doaj   +1 more source

Sensitive, homogeneous, and label-free protein-probe assay for antibody aggregation and thermal stability studies

open access: yesmAbs, 2021
Protein aggregation is a spontaneous process affected by multiple external and internal properties, such as buffer composition and storage temperature.
Salla Valtonen   +5 more
doaj   +1 more source

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