نتایج جستجو برای: mixed alkali effect

تعداد نتایج: 1844133  

Journal: :Cancer research 1977
L C Erickson M O Bradley K W Kohn

determine the molecular basis for the cytotoxic action that produces the antitumor effect. Unfortunately, there is pres ently no direct way to identify with certainty the critical molecular lesions. It is, however, possible to obtain comrel ative evidence between molecular effects and cytotoxic effects in various cell types, which could lead to a probable identification of the critical lesions....

Journal: :Separations 2022

Alkali-activated slag (AAS) is a promising cementing material for winter construction due to its continuous hydration at sub-zero temperature. In order obtain higher mechanical strength of AAS mortar in construction, the most efficient alkali activator should be selected. Potassium silicate and sodium as alkaline activators possess high rate ordinary showed different properties because cations,...

Journal: :iranian journal of science and technology (sciences) 2007
a. abbaspour

a simple, rapid and sensitive spectrophotometric method has been proposed for the determinationof vanadium (iv). the method is based on the catalytic effect of v (iv) on the oxidation of alkali blue bypotassium bromate at ph 4. the rate of decrease in the absorbance of alkali blue (at 572 nm) wasproportional to the concentration of v (iv) in the range of 100-6000 ng ml-1. the detection limit wa...

2009
A. Rezaee

In this study, the removal of mercury ions by cellulose of Acetobacter xylinum was investigated in the synthetic and chlor-alkali wastewater. Biofilms of Acetobacter xylinum were grown in laboratory column bioreactors. The biofilms were continuously treated with sterile synthetic model wastewater or nonsterile, neutralized chloralkali wastewater.The extent of adsorption was studied as function ...

Journal: :physical chemistry and electrochemistry 0

in this study, a temperature-dependent of the dispersion coefficients is calculated from equation state.the lennard-jones lj (12-6-3) effective pair potential function and simple thermodynamic argumentwith the input pvt data of liquid metals are used to calculate the dispersion coefficients. the dispersioncoefficients ( , , ) 3 6 12 c c c are found to be a linear function of 1/t1+α , where t is...

Journal: :Comptes Rendus Geoscience 2022

Thiosilicate and selenosilicate glasses are the sulfide selenide counterparts of well-known silicate glasses. This paper reviews main investigations carried out to shed light on structural, thermal electrical characteristics these glasses, showing their particularities compared oxide counterparts, such as a more complex structure with presence both, corner- edge-sharing tetrahedra much higher i...

Journal: :Journal of physics 2022

The study investigates the properties of alkali-activated binders with waste glass (WG) under hydrothermal treatment. WG was dosed in 0-30 wt.% and used as a substitute for raw materials. Solid precursors were mixed sodium water glass. prepared specimens cured ambient conditions (20°C RH 98%) (105°C 150°C). effect treatment on physical mechanical after 2, 7, 28, 56, 90 180 days monitored. Prepa...

Journal: :The Journal of General Physiology 2003
John H. Northrop

1. The effect of the addition of acid on the amount of ionized protein has been compared with the effect on the rate of digestion of gelatin, casein, and hemoglobin by pepsin. 2. A similar comparison has been made of the addition of alkali in the case of trypsin with gelatin, casein, hemoglobin, globin, and edestin. 3. In general, the rate of digestion may be predicted from the amount of ionize...

Journal: :New journal of glass and ceramics 2022

A set of borophosphate glasses doped with alkali and transition metal (TM) ions have been synthesized. The were carried through; annealing, XRD, density, DC conductivity studies. Molar volume density varied nonlinearly. High temperature activation energy is analysed taking into consideration Mott’s SPH model. low electrical was by Mott Greaves VRH. Several polaron hopping related parameters at ...

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