ابراهیمی, افشین
دانشگاه علوم پزشکی اصفهان
[ 1 ] - تعیین مقدار فلزات سنگین در برخی نمونه های پر مصرف سیگار و توتون های معطر موجود در بازار ایران
Abstract Background: To protect against the adverse effects of heavy metals on human health, investigation of heavy metal contents in cigarettes and aromatic tobaccos is essential. The aim of this study was to assess heavy metals in some highly-used samples of cigarettes and aromatic tobaccos in the Iranian market. Methods: In this study, 9 cigarette and 3 aromatic tobacco samples found i...
[ 2 ] - Treatment of Highly Turbid Water by Polyaluminum Ferric Chloride (PAFCL)
Background & Aims of the Study: In some situation like rainfall seasons raw water become very turbid so it affected the water treatment plant processes and quality of produced water. Treatment of very high turbid water has some concerns like precursors for disinfection by-products and very loading rate of particle on filter's media and consequently increases in water consumptio...
[ 3 ] - Trends in health burden of untreated water and insanitary environments in Iran, 1990-2010: Findings from the global burden of disease study 2010
Background: Water, sanitation and hygiene have a very important role in public health. Poor sanitation is the cause of water contamination, which causes many types of diseases. The aim of this paper was to present the attributable death and disability adjusted life year (DALYs) of untreated water and insanitary environments from 1990 to 2010 in Iran. Methods: In the Global Burden of D...
[ 4 ] - پهنه‌بندی پتانسیل خوردگی شبکه توزیع آب اصفهان در تابستان و پاییز 1390 با استفاده از سامانه اطلاعات جغرافیایی
این تحقیق توصیفی مقطعی با هدف تعیین پتانسیل خوردگی آب آشامیدنی شهر اصفهان در سال 1390 انجام گرفت. در این مطالعه در مجموع 80 نمونه طی فصلهای تابستان و پاییز (در هر مرحله 40 نمونه) از نقاط مختلف شهر اصفهان جمع‌آوری و پارامترهای دما، سختی کلسیم، قلیائیت، کل جامدات محلول و pH اندازه‌گیری شد. مقادیر اندیس‌های لانژلیه، رایزنر، خوردگی و پوکوریوس محاسبه شد. برای انجام پهنه‌بندی نتایج حاصل از سنجش خوردگ...
[ 5 ] - کاربرد سیستم تلفیقی فیلتراسیون و اشعه فرابنفش در گندزدایی پساب تصفیه‌خانه فاضلاب شمال اصفهان در مقیاس پایلوت
هدف از انجام این مطالعه، ارزیابی امکان گندزدایی پساب تصفیه ثانویه در شرایط راهبری فعلی تصفیه‌خانه فاضلاب شمال اصفهان با استفاده از سیستم گندزدایی تلفیقی شامل فیلتراسیون و اشعه فرابنفش بود. به این منظور، سیستم پایلوت شامل واحدهای فیلتر شنی تحت فشار، لامپ فرا بنفش کم فشار (LP) و فشار متوسط (MP) طراحی و به‌طور سری در محل تصفیه‌خانه نصب شد. دزUV بر اساس شدت اولیه لامپ، دبی و عبور اشعه از پساب متغی...
[ 6 ] - Photodegradation process for the removal of acid orange 10 using titanium dioxide and bismuth vanadate from aqueous solution
In this study, the photocatalytic degradation of azo-dye acid orange 10 was investigated using titanium dioxide catalyst suspension, irradiation with ultraviolet-C lamp and bismuth vanadate under visible light of light-emitting diode lamp. Response surface methodology was successfully employed to optimize the treatment of acid orange 10 dye and assess the interactive terms of four factors. The ...
[ 7 ] - Degradation of Low Concentrations of Formaldehyde in Sono Catalytic Ozonation Advanced Oxidation Processes using Zero-valent Iron
The purpose of the current study is to evaluate formaldehyde degradation ratio with various methods in a batch reactor. In this work, the ozonation, sonolysis (ultrasonic), and ozone sonolysis, sono catalytic ozonation (SCO), and nano zero-valent iron catalyst processes were investigated for removal of formaldehyde. In addition, the influence of important factors such as pH (5–9), ultrasonic po...
[ 8 ] - Analysis of Multiple Choice Questions Based On Classical Test Theory
Introduction: The aim of this study was to use Classical Test Theory (CTT) software for qualitative and quantitative analysis of Multiple Choice Questions (MCQ) for Master students of health discipline. Methods: This study was carried out on two groups each including 50 undergraduate students of public health, and two groups of 50 and 26 undergraduate students of occupational health. The final...
[ 9 ] - Optimization and Modeling of Microcystin-LR Degradation by TiO2 Photocatalyst Using Response Surface Methodology
Introduction: Microcystin-leucine arginine (MC-LR) is a toxin with harmful effects on the liver, kidney, heart, and gastrointestinal tract. So, effective removal of MC-LR from water resources is of great importance. The aim of this study was to remove microcystin-LR (MC-LR) from aqueous solution by Titanium Dioxide (TiO2). Materials and Methods: In the present study, TiO2, as a semiconductor, ...
نویسندگان همکار
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