امروزه توسعه سیستم‌های کارآمد و اثربخش بهداشت درمان به یکی از نگرانی‌های اصلی دولت‌ها تصمیم‌گیرندگان تبدیل شده است. تأمین به‌موقع دارو کارایی سیستم موجودی توزیع، نقشی حیاتی در زنجیره بیمارستانی دارند برای افزایش این فعالیت‌ها، فرآیند تصمیم‌گیری مناسب مدیریت ضروری نظر می‌رسد. پژوهش یک مدل دوهدفه به‌صورت برنامه‌ریزی خطی عدد صحیح مختلط جریان اطلاعات ارائه اهداف حداقل­کردن هزینه‌های خرید، نگهداری، ...

in the management and evaluation of asthma, simple instruments for measurements of peak expiratory flow rate (pefr) are necessary. the aim of this study was to determine normal pefr of the healthy children in babol, iran. this study was randomly done on 1050 students (primary and secondary schools) in babol. mini-wright peak flow meter was used for measurement of pefr. the range of age, weight ...

soil detachment is known as an important process in soil erosion and its quantification is necessary to establish a basic understanding of erosion. this study was carried out to find the best flow erosivity indicator(s) for predicting detachment rate at low slopes. for this purpose, 12 experiments including 6 flow discharges (75, 100, 125, 150, 175 and 200 ml/s) and 2 slope gradients (1.5 and 2...

objective: the aim of the present study was to evaluate unstimulated salivary flow rate and oral symptoms in menopausal women. materials and methods: a total of 200 individuals including 100 women in their menopause (case group) and 100 men in the same age range (control group) participated in this analytic descriptive investigation. none of the patients were being treated for any systemic dise...

investigating nozzle’s orifice flow is challenging both experimentally and theoretically. this paper focuses on simulating flow inside diesel injector nozzle via ansys fluent v15. validation is performed with experimental results from winkhofler et al (2001). several important parameters such as mass flow rate, velocity profiles and pressure profiles are used for this validation. results includ...

co2 emissions from combustion flue gases have turned into a major factor in global warming. post-combustion carbon capture (pcc) from industrial utility flue gases by reactive absorption can substantially reduce the emissions of the greenhouse gas co2. to test a new solvent (ait600) for this purpose, a small pilot plant was used. this paper presents the results of studies on chemical methods of...

the abrasive flow machining technique uses a self-deforming tool, an abrasive laden media that is passed back and forth in the passage geometry of the hollow workpiece with the assistance of two hydraulically operated cylinders placed opposite to each other. the material is removed by abrasion generating finer surfaces in the area where flow is restricted. but this method has a low material rem...