نتایج جستجو برای: mixing solvents

تعداد نتایج: 108690  

2011
Angelo Signoracci Alex Brown

For the A = 32, T = 2 quintet we provide a unified theoretical description for three related aspects of isospin mixing: the necessity of more than three terms in the isobaric mass multiplet equation, isospin-forbidden proton decay in 32Cl, and a correction to the allowed Fermi β+ decay of 32Ar. We demonstrate that all three effects observed in experiment can be traced to a common origin related...

A. Fardad E. Jabbari M. Madadelahi S.M. Hosseinalipour,

Gas mixing in a T-shape micro mixer has been simulated using the Direct Simulation Monte Carlo (DSMC) method. It is considered that the adequate mixing occurs when the mass composition of the species, CO or N2, deviates below 1 % from their equilibrium composition. The mixing coefficient is defined as the ratio of the mixing length to the main channel’s height. As the inlet Kn increases, while ...

Journal: :The Journal of biological chemistry 1978
T Asakura K Adachi E Schwartz

The rate of denaturation of hemaglobin and other proteins by mechanical shaking is strongly affected by organic solvents. A group pf solvents,including alcohols and ketones, was found to stabilize proteins at low concentrations, although these same organic solvents denatured proteins at high concentrations. The stabilizing effect of alcohols increased with increasing chain lenghts. The second g...

Journal: :avicenna journal of medical biochemistry 0
leila jamalzadeh department of biology, university of guilan, rasht, ir iran hosein ghafoori department of biology, university of guilan, rasht, ir iran; department of biology, university of guilan, rasht, ir iran. tel/fax: +98-1333333647 reyhaneh sariri department of biology, university of guilan, rasht, ir iran hanieh rabuti department of biology, university of guilan, rasht, ir iran jila nasirzade department of biology, university of guilan, rasht, ir iran hajar hasani department of biology, university of guilan, rasht, ir iran

background organic solvents are widely used in cell biology experiments. despite increasing the solubility, they have some moderate toxic effects. therefore, selecting the appropriate solvent along with the use of suitable concentration insures the accuracy and reliability of experimental results. objectives the current study aimed to examine the cytotoxic effects of some organic solvents on va...

Journal: : 2023

Introduction. LHS-1269 is an indolocarbazole derivative with high antitumor activity. Due to the hydrophobic properties of active substance, use organic co-solvents – dimethyl sulfoxide (DMSO) and ethanol required obtain injectable dosage form (DP). However, inclusion solvents in composition DF carries a potential risk side effects as result drug. Aim. Selection auxiliary substances for obtaini...

Journal: :Journal of Molecular Liquids 2021

The properties of [EMIM][BF4] + [EMIM][TFSI] double salt ionic liquid (DSIL) were studied as a function mixtures composition and temperature. Experimental physicochemical combined with molecular simulation (quantum chemistry classical dynamics) considered, thus providing micro macroscopic characterization fluids’ structuring, intermolecular forces aggregation. results analysed in thermodynamics...

Journal: :journal of physical & theoretical chemistry 2008
z. bayat m. monajjemi

some of the adamantane properties were calculated in this study. chemical shift, free energy ofsolvation, free energy of cavity formation, henry's law constant, and other properties ofadamantane in dry phase, three solvents and three temperatures have been calculated with abinitio method base on density functional theory (dft) at b3lyp/6-31g, b31yp/6-31g*, b3lyp/6-31+g* and b3lyp/6-31++g** leve...

In this study, the mixing phenomena and fluid dynamics in a copper converter have been experimentally investigated using a physical model. The physical model is a 1:5 horizontal tank made of Plexiglas. The mixing phenomena have been characterized by experimentally measuring the mixing time using a tracer dispersion technique. Moreover, the effects of the air flow rate and lance submergence on t...

H. Niazmand J. Jamaati M. Renksizbulut

A numerical study of 3D electrokinetic flows through micromixers was performed. The micromixers considered here consisted of heterogeneous rectangular microchannels with prescribed patterns of zeta-potential at their walls. Numerical simulation of electroosmotic flows within heterogeneous channels requires solution of the Navier-Stokes, Ernest-Plank and species concentration equations. It is kn...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2013
j. jamaati h. niazmand m. renksizbulut

a numerical study of 3d electrokinetic flows through micromixers was performed. the micromixers considered here consisted of heterogeneous rectangular microchannels with prescribed patterns of zeta-potential at their walls. numerical simulation of electroosmotic flows within heterogeneous channels requires solution of the navier-stokes, ernest-plank and species concentration equations. it is kn...

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