نتایج جستجو برای: bed occupation rate

تعداد نتایج: 1023622  

Journal: :Arquivos brasileiros de oftalmologia 2009
Vanessa Grandi Valezi Silvana Artioli Schellini Magda Massae Hata Viveiros Carlos Roberto Padovani

PURPOSE To investigate the safety and efficacy of intraoperative infiltration of 5-fluorouracil (5-FU) as an adjuvant drug in pterygium treatment. METHODS Of 125 consecutive patients, 125 eyes with primary and recurrent pterygium underwent pterygium excision with intraoperative 5-FU (25 mg/mL) infiltration. The superior and inferior conjunctiva was approximated to cover the scleral bed and 0....

Journal: :European journal of public health 2012
Seher Nur Sulku

BACKGROUND Turkey initiated the 'Health Transformation Programme' (HTP) in 2003 to align its health care system with the European Union and OECD countries. This study investigates the impact of these reforms on the efficiency of public hospitals. Our study would contribute to the existing literature with a comprehensive analysis of the health system in a developing country. METHODS We employ ...

ژورنال: مدیریت سلامت 2002
فرجی خیاوی, فرزاد, موسوی, محمد هادی,

To assess the efficiency of Farabi eye hospital between 1999 and 2001, this study, as a sectional descriptive survey, was performed in Farabi eye hospital to compare the statist performance of different wards of the hospital with other hospital indicators. The results showed that delivered services in various clinics, surgical operations, paracl services and financial performance indicated ...

2012
Satyender Singh Prashant Dhiman

In this paper double flow packed bed solar air heater has been investigated theoretically. The effect of air mass flow rate, porosity and different depth ratios at study state conditions on the thermal performance of a double flow packed bed solar air heater is found by using the alternative simulation system. Comparisons between the measured thermal and effective thermal efficiency of the doub...

Journal: :Physical review letters 2006
Daniel I Goldman Harry L Swinney

We demonstrate that a fluidized bed of hard spheres during defluidization displays properties associated with formation of a glass. The final state is rate dependent, and as this state is approached, the bed exhibits heterogeneity with increasing time and length scales. The formation of a glass results in the arrest of macroscopic particle motion and thus the loss of fluidization. Microscopic m...

2013
S. K. Chaudhury Diran Apelian

Effects of rapid heat transfer using a fluidized bed on the heat-treating response of Al-Si-Mg alloys (both unmodified and Sr modified) were investigated. The heating rate in the fluidized bed is greater than in conventional air convective furnaces. Particle size analyses of eutectic Si showed that the high heating rate during fluidized bed solution heat treatment causes faster fragmentation an...

2002
J. B. W. KOK A. A. J. BENSCHOP

-Surface waves with a frequency of 0.5-2.5 Hz were generated on a homogeneously fluidized bed. The propagation velocity and rate of attenuation of the induced pressure fluctuations were measured using signal averaging techniques. The measured wave velocity and attenuation rate correlated well with predictions based on a theory which considers the bed as an incompressible liquid with low viscosi...

2004
Christopher A. Richard Sarah S. Mosko

RECENT INTEREST IN THE PHYSIOLOGIC AND BEHAVIORAL CORRELATES OF MOTHER-INFANT BED SHARING IS DRIVEN, IN PART, BY CLAIMS THAT BED SHARING IS A SIGNIFICANT INDEPENDENT RISK FACTOR FOR THE SUDDEN INFANT DEATH SYNDROME (SIDS).1 Furthermore, some form of co-sleeping or bed sharing represents the condition under which infants adapted throughout human evolutionary history.2,3 It seems self-evident tha...

Leila Mirmomen, Sayed Mahdi Alavi

Several investigations have been devoted towards understanding the coating process in fluidized beds. Most of these studies focused on spraying liquid droplets over the bed. However, due to the complexity of these systems, more investigations are still required to quantify the effect of operating conditions on the coating criteria. The present work aims at fundamentally understanding and pr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی امیرکبیر(پلی تکنیک تهران) - دانشکده مهندسی شیمی 1386

تقاضا برای اُلفین های (آلکِن های) سبک مانند پروپن، بوتن و ایزوبوتن و محصولاتی که از این اُلفین ها تولید می شود، بالا و رو به فزونی است. چون منابع فسیلی (طبیعی) فاقد الفین های سبک می باشند و بیشتر آنها شامل هیدروکربن های اشباع شده و آروماتیکها می باشد، روش های سنتزی برای تولید اُلفین های سبک اجتناب ناپذیر است. یکی از راههای تولید اُلفینهای سبک، هیدروژن زدایی آلکان متناظر- حذف یک مولکول - با آنها می ب...

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