نتایج جستجو برای: mbas
تعداد نتایج: 166 فیلتر نتایج به سال:
BACKGROUND AND OBJECTIVES Sodium dodecyl sulfate (SDS) is one of the main surfactant components in detergents and cosmetics, used in high amounts as a detergent in products such as shampoos, car wash soap and toothpaste. Therefore, its bioremediation by suitable microorganisms is important. Alkylsulfatase is an enzyme that hydrolyses sulfate -ester bonds to give inorganic sulfate and alcohol. T...
Existing studies on the returns to college quality find mixed results, mainly due to the difficulty of controlling for selection into higher quality colleges based on unobserved abilities. Moreover, researchers have not considered graduate degree attainment in the analysis of labor market returns to college quality. I examine how college quality affects wages and advanced degree attainment usin...
Sewage treatment processes have been increasingly the target of research aimed at developing solutions that meet environmental standards lower costs for society. The generation sanitary sewage and its final release, without or with inefficient in networks, lakes, rivers oceans aggravated quality water resources put risk health population given water-delivery diseases. This article to evaluate r...
Background: As plastic surgery continues to evolve, an increasing number of surgeons are attaining additional degrees (ADs). Prior studies illustrate this trend increased AD attainment among faculty within the United States. Yet, no such study has documented variability and influence Canadian faculty. Objectives: Our objective was investigate relationship between gender, alongside research prod...
Backgrounds and Objective: Surfactants are one of the largest pollutants which exist in urban and industrial wastewaters. Large quantities of surfactants have entered to the environment since last decade due to increased use of synthetic detergent in industrial and home consumptions.In this study, the efficiency of UV/H2O2 process in removal of linear alkylbenzane sulfonate (LAS) from aqueous s...
مقدمه: کارواش صنعتی است که میزان زیادی آب مصرف کرده و فاضلاب آن حاوی انواع آلایندهها میباشد. هدف از انجام مطالعه، بررسی کارآیی فرآیند پروکسون به عنوان روشی برای حذف سورفاکتانت و COD از تصفیه فاضلاب حاصل از شستشوی اتومبیل در کارواش بود. روشها: مطالعه در مقیاس آزمایشگاهی انجام شد. در مجموع 54 نمونه به صورت روزانه از یکی از کارواشهای شهر یزد جمعآوری شد و درصد حذف پارامترهای اکسیژن موردن...
A cultura maker ou “faça você mesmo” apresenta iniciativas que podem ser aplicadas como alternativa às aulas tradicionais. Ela permite os estudantes desenvolvam seu conhecimento teórico por meio da prática. O presente artigo tem o objetivo de analisar a aplicabilidade no âmbito educacional brasileiro, com foco ensino ciências, uma revisão bibliográfica, norteada pelo procedimento Revisão Sistem...
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