نتایج جستجو برای: nacl و na2so4

تعداد نتایج: 782912  

2009
Cathryn L. McFearin Geraldine L. Richmond

One of the most common and important interfaces is the boundary layer between an aqueous phase solution of ions and a hydrophobic medium. Whether the hydrophobic medium is a membrane, a macromolecular assembly, or a simple organic liquid, our molecular-level understanding of how ions in an adjacent aqueous phase approach, alter, and transport across the boundary is still quite deficient, largel...

2011
Ali Meer Ali Jasim

The effect of base temperature variation on the heat transfer from unsteady state annular heat sink of cooling microelectronic device. Three types of the base temperature variation equations are taken in the present study. The Sine wave variation, Cosine wave variation & exponential variation of the base temperature. The finite element technique based on Galerkin method with axisymmetric rectan...

Journal: :Journal of Membrane Science 2023

Nanofiltration (NF) is seen as a promising advanced treatment technology to deal with the increasing concentration of micropollutants (MPs) in water sources globally. To further improve successful implementation NF, an increased understanding membrane transport mechanisms important. One key aspect among these concerns influence solution composition on overall filtration performance. Although se...

Journal: :Eurasian journal of biological and chemical sciences 2021

With the ever-increasing demand to textile products, industries and industry wastewater increases rapidly, making it one of most important industrial source in world. The biggest problem encountered is that contains high amounts dyestuff. paints mixed with waste water without sticking fiber during dyeing process create color when they are applied receiving environment being purified, disrupt ae...

1997
Mehmet Doǧan Mahir Alkan Ümit Çakir

as a catalyst in chemical reactions an abrasive; and as an Electrokinetic properties of expanded and unexpanded perlite agent in mixtures for oil well cementing (1). samples have been investigated using the microelectrophoresis However, no studies about the surface interactions that technique. Perlite samples yield practically no isoelectric point in occur at the interface when perlite is incor...

Journal: :Acta Metallurgica Sinica (english Letters) 2021

The corrosion evolution of steel disposal container largely depends on the surrounding bentonite environment in long-term geological high-level radioactive wastes. This study focused influence deteriorated sediments behavior NiCu low alloy top supernatant and bottom slurry formed by Gaomiaozi 0.05 M NaHCO3 + 0.1 NaCl Na2SO4 solution. In supernatant, cathodic process was transformed from reducti...

Journal: :Indian journal of biochemistry & biophysics 2011
Rajender Kumar Vinita Hooda C S Pundir

An oxalate oxidase was purified to apparent homogeneity from the leaves of 10-days old seedlings of forage Sorghum (Sorghum vulgare var. KH-105). The enzyme had a Mr of 124 kDa with two identical subunits, an optimum pH of 4.5, optimum temperature of 37 degrees C and activation energy (Ea) of 2.0338 Kcal/mol. The rate of reaction was linear up to 7 min. K(m) value for oxalate was 0.22 mM. The e...

2013
Prue Holmes Richard Fay Jane Andrews Mariam Attia

This paper reports findings from an AHRC-funded project into the use of more than one language in research projects. Using 35 seminar presentations and 25 researcher profiles, we investigated how researchers from differing disciplines became aware of the possibilities, complexities, and emerging practices of researching where more than one language is used: for example, in initial research desi...

2009
Tariq Al-Najjar Jamal Bani Fawaz Riyad Manasrah Mohamad Al-Zibdah Ahmad Abu-Hilal

Variations of heavy metals concentrations (Pb, Zn, Ni and Cd) in suspended matter as well as the physical properties (temperature, salinity, dissolved oxygen and pH) at five coastal sites and one reference station (offshore) were measured on seasonal base of the year 2005. Seasonal variations of seawater temperature, salinity, pH and dissolved oxygen were significant different, meanwhile; spati...

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