1. Abstract 2. Introduction 3. Experimental procedures 3.1. Reagents 3.2. Apparatus 3.3. Electrode preparation 4. Results and discussion 4.1. Preparation and characteristics of nano-SnO2 4.1.1. The preparation of nanoSnO2 4.1.2. The characteristics of nano-SnO2 4.2. Electrochemical behaviors of CFX at the nano-SnO2 modified electrode 4.2.1. Cyclic voltammograms of CFX at various modified electr...

OBJECTIVES Cefixime (Cfx), is a semi-synthetic third-generation oral cephalosporin antibiotic that is prescribed for the treatment of susceptible infections. There are some procedures for the determination of Cfx in pharmaceutical formulations and biological samples. Herein a spectrofluorimetric method was proposed for Cfx determination based on the fluorescence quenching of terbium-danofloxaci...

Intestinal absorption of beta-lactamine antibiotics (e.g., cefixime and cephalexin) has been shown to proceed through the dipeptide carrier system. In a previous study, nifedipine (NFP), an L-type calcium channel blocker, enhanced the absorption of cefixime in vivo but not in vitro, and it was suggested that neural mechanisms might be involved in the effect of NFP. The aim of the present study ...

مدلسازی فیزیکی همراه با استفاده از مدل­های عددی  با دقت مطلوب برای شرایطی که امکان مدلسازی به ازای دبی­های زیاد در آزمایشگاه به دلیل محدودیت­های هیدرولیکی و فیزیکی میسر نباشد امری اجتناب­ناپذیر است. در این تحقیق، ضمن اندازه­گیری­های مدل فیزیکی، از مدل عددی المان محدود ANSYS CFX برای شبیه­سازی عددی میدان جریان شامل سرعت، فشار و ضریب کاویتاسیون برای مدل سریز سد آزاد استفاده شده است. به کمک دو معی...

In this paper, performance of centrifugal pump as turbine (PAT) is investigated numerically. Three different specific speeds are considered and three pumps are designed using diagrams from catalogues and CFturbo V.9 software. Next, models are analyzed by Ansys CFX 16 software and results are compared with those of CFturbo software. Also, a mesh study analysis for one case is performed in order ...