نتایج جستجو برای: scale efficiency

تعداد نتایج: 937994  

2017
Angeliki Flokou Vassilis Aletras Dimitris Niakas

The main objective of this study was to apply the non-parametric method of Data Envelopment Analysis (DEA) to measure the efficiency of Greek NHS hospitals between 2009-2013. Hospitals were divided into four separate groups with common characteristics which allowed comparisons to be carried out in the context of increased homogeneity. The window-DEA method was chosen since it leads to increased...

Journal: :medical journal of islamic republic of iran 0
bahram nabilou social determinants of health research center, urmia university of medical sciences, urmia, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (urmia university of medical sciences) hassan yusefzadeh department of public health, school of public health, urmia university of medical sciences, urmia, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (urmia university of medical sciences) aziz rezapour school of health management and information sciences and health management and economics research center, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) farbod ebadi fard azar department of public health, school of public health, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) parviz salem safi department of public health, school of public health, urmia university of medical sciences, urmia, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ارومیه (urmia university of medical sciences) ali sarabi asiabar health management and economics research center, iran university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences)

background: due to the increasing health care costs, the issue of productivity in hospitals must be taken into great consideration in order to provide, preserve and promote public health services. thus, increasing the level of productivity must become the main aim of any hospital. objective of this study is to determine the total factor productivity and its components over the period under the ...

Journal: :شیمی و مهندسی شیمی ایران 0
ابوعلی گلزاری تهران، دانشگاه تهران، دانشکده تحصیلات تکمیلی محیط زیست، گروه مهندسی محییط زیست، آزمایشگاه تبدیل پسماند به انرژی محمدعلی عبدلی تهران، دانشگاه تهران، دانشکده تحصیلات تکمیلی محیط زیست، گروه مهندسی محییط زیست، آزمایشگاه تبدیل پسماند به انرژی عباسعلی خدادادی تهران، دانشگاه تهران، پردیس دانشکده های فنی، دانشکده مهندسی شیمی، آزمایشگاه کاتالیست و مواد نانوساختار عبدالرضا کرباسی تهران، دانشگاه تهران، دانشکده تحصیلات تکمیلی محیط زیست، گروه مهندسی محییط زیست، آزمایشگاه تبدیل پسماند به انرژی سجاد ایمانیان تهران، دانشگاه تهران، دانشکده تحصیلات تکمیلی محیط زیست، گروه مهندسی محییط زیست، آزمایشگاه تبدیل پسماند به انرژی

in this study, different methods of separating of the microalgae from the culture medium as one of the most important and expensive steps in achieving commercial production of biodiesel from microalgae was investigated. electro coagulation-flotation (ecf) was preferred among these methods due to its process simplicity and capability to scale up. the effect of three parameters, i.e., initial ph,...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
ثار الله رضاپور دانشگاه تربیت مدرس، تهران سید ابوالقاسم مرتضوی دانشگاه تربیت مدرس، تهران سید مجتبی مجاوریان دانشگاه علوم کشاورزی ساری

since the difference in productivity growth rates in different provinces is a result of regional inequality, efficiency criteria in the development of regional-scale agricultural activities is beneficial. therefore it is important that long-term movements in the provinces to identify differences in productivity levels to take effective measures such as investment more in infrastructure, researc...

2017
Xiaobo Shen Boqiang Lin

Based on stochastic frontier analysis and translog input distance function, this paper examines the total factor energy efficiency of China’s industry using input-output data of 30 subindustries from 2002 to 2014, and decomposes the changes in estimated total factor energy efficiency into the effects of technical change, technical efficiency change, scale efficiency change and inputmix effect. ...

Journal: :international journal of health policy and management 2014
reza goudarzi abolghasem pourreza mostafa shokoohi roohollah askari mahdi mahdavi

background hospitals are highly resource-dependent settings, which spend a large proportion of healthcare financial resources. the analysis of hospital efficiency can provide insight into how scarce resources are used to create health values. this study examines the technical efficiency (te) of 12 teaching hospitals affiliated with tehran university of medical sciences (tums) between 1999 and 2...

2015
A. C. F. Carine

This study presents an evaluation of the relative efficiency of sixteen container ports in Sub-Sahara Africa using three DEA models namely CCR, BCC and Super-Efficiency over the year 2012. The CCR and BCC models are used to estimate the technical and scale efficiency while the super-efficiency technique provides a ranking of efficient ports. The efficiency results indicate that on average the i...

Journal: :journal of optimization in industrial engineering 2010
roza azizi reza kazemi matin

data envelopment analysis (dea) is a non-parametric approach for performance analysis of decision making units (dmus) which uses a set of inputs to produce a set of outputs without the need to consider internal operations of each unit. in recent years, there have been various studies dealt with two-stage production systems, i.e. systems which consume some inputs in their first stage to produce ...

2017
Jacob Veenstra Hendrik M. Koolma Maarten A. Allers

The efficiency of social housing providers is a contentious issue. In the Netherlands, there is a widespread belief that housing corporations have substantial potential for efficiency improvements. A related question is whether scale influences efficiency, since recent decades have shown a trend of mergers among corporations. This paper offers a framework to assess the effects of scale and merg...

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