نتایج جستجو برای: total hardness and ph so
تعداد نتایج: 16925790 فیلتر نتایج به سال:
the present research study attempted to find out the extent to which two pre-task activities of “glossary of unknown vocabulary items” and “content related support” assisted efl language learners with their performance on listening comprehension questions across two different proficiency levels (low and high). data for this study were obtained from a total of 120 language learners, female and m...
Textile dye industry waste is one of the most serious problems in the environment. The dye wastes are severely deleterious to surface water bodies. The present study was an attempt for the assessment of different physicochemical parameters such as pH, temperature, Electrical Conductivity (EC), Total Solids (TS), Total Dissolved Solids (TDS), Total Suspended Solids (TSS), Dissolved Oxygen (DO), ...
Objective: Tooth surface undergoes continuous remineralization and demineralization. The aim of this study was to compare the effect of Caseinphosphopeptide-amorphous calcium phosphate (CPP-ACP) paste and Fluoride gel on the microhardness of demineralized enamel lesions. Methods: Frothy eight specimens of premolar teeth were chosen and randomly divided to 4 groups of 12. After the initial m...
abstract: in this thesis, we focus to class of convex optimization problem whose objective function is given as a linear function and a convex function of a linear transformation of the decision variables and whose feasible region is a polytope. we show that there exists an optimal solution to this class of problems on a face of the constraint polytope of feasible region. based on this, we dev...
ABSTRACT: The study aimed to analyze the physicochemical properties and starter culture viability of frozen yogurts produced with liquid cheese whey (LCW) inulin at different proportions (F0: 66% LCW 0% inulin; F1: 65% 1% F2: 64% 2% F3: 62% 4% inulin). Results demonstrated that yogurt F3 presented higher total solids carbohydrates levels. contributed overrun increase (11.8-18.2%) but did not in...
The purpose of this study is investigating the chemical analysis of drinking water in Kashan district. This district contained Kashan, Aran and Bidgol and Nooshabad cities and it had an estimated population more than of 400,000 in 2007. 42 Samples were collected during October 2006 to May 2007.The temperature of the water Samples is in the range 25-30°C. The water samples were analyzed for pH ,...
the present research was an attempt to see how quranic lexical collocations were translated into english by two professional translators namely, abdullah yusuf(2005), and muhammad s. shakir(2012). the study attempted qualitatively to shed light on how translators dealt with quranic lexical collocations when transferring them to the target language based on the newmark(1988) model , and quantit...
this research has been taken among the students of high school in karaj city during the years 1391 and 1392. this is a survey research and data gathering is through questionnaires. studying the “an analysis of students’ tendency toward non-native reference groups in karaj”. the questionnaire was distributed among 260 of these students who were chosen through multi step cluster sampling. conside...
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