نتایج جستجو برای: sodium sulphate salt
تعداد نتایج: 261460 فیلتر نتایج به سال:
The durability of class C fly ash belite cement (FABC-2-W) in simulated radioactive liquid waste (SRLW) rich in a mixed sodium chloride and sulphate solution is presented here. The effect of the temperature and potential synergic effect of chloride and sulfate ions are discussed. This study has been carried out according to the Koch-Steinegger test, at the temperature of 20 degrees C and 40 deg...
Three commercial membranes (NF70, NF90 and TFC-SR) were firstly characterized in terms of pure water flux and the: rejection of uncharged (alcohols and sugars) compounds. Subsequently, the rejection of monovalent (sodium and chloride) and divalent (calcium and sulphate) ions in single (NaC1, CaC12 and Na2SO4) and binary (NaC1/Na2SO4, CaClJCaSO4, NaC1/CaC12 and Na2SO4/CaSO4) salt mixtures was st...
Gustatory responses to the basic taste substances (sweet, salty, sour and bitter) were studied in hypothyroid and hyperthyroid subjects. The intensity and hedonic responses were evaluated using "category scaling" for 7 concentrations of glucose, sodium chloride, citric acid and quinine sulphate. The intensity and hedonic values decrease in hyperthyroidism for salt and bitter solution, and sourn...
The isolation of a salt-soluble homogeneous elastin from the aortas of lathyritic chicks by chromatography on DEAE-cellulose and salt precipitation is described. These new techniques, as well as some previously published by other workers, were evaluated with the help of antiserum raised in sheep against insoluble chick elastin. The purified elastin was very basic and behaved in a predictable ma...
Natural stone is an important component of historical heritage (buildings and art objects such as sculptures or rock engravings), it still widely used in contemporary works. Soluble salts are the main erosive agent built environment, we review here comparative studies that subject same type to testing with different salt solutions. The results mostly support accepted notion major impact sodium ...
Extensive durability problems such as weathering and degradation are found in historic Scandinavian brick masonry buildings, especially from the neo-Gothic period. These largely due to crystallization of salts frost action bricks mortars. This article aims show illustrate which crystals buildings describe their appearance behavior. An additional aim is explore possibilities preventing salt-rela...
In the manuscript main factors that affect thermal mass of open and closed types heat storage devices are shown. Also, requirements for adsorption modules given. The calculation procedure has been refined, which includes determination load, adsorption, adsorbent mass, as well integral, structural, specific mass. masses heat-accumulating were evaluated. affecting their value analysed. It is show...
An automatic procedure for the determination of globulin in serum or plasma is described. This method is based on the measurement of the turbidity which develops when serum is mixed with 27-4% sodium sulphate solution. The method gives good agreement with the salt fractionation technique (Majoor, 1946) and shows a high degree of precision. The differential estimation of serum proteins constitut...
The RILEM TC ASC-271 is developing a new laboratory test to assess the durability of porous building materials salt crystallisation. encompasses two phases: accumulation and damage propagation. This paper focuses on designing procedure for phase; this considered successful when salts crystallise at material's evaporative surface (common situation observed site) without occurrence damage. Two pr...
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