نتایج جستجو برای: relative efficiency

تعداد نتایج: 759524  

Given the speedy increase of knowledge in today's world, companies have to resort to communication technology so that they may harmoniously adapt themselves with the ever-variating conditions this, in turn, leads to more and more investments in this technology in a rapid pace. This study takes Data Envelopment Analysis (DEA) model to evaluate the financial performance of the provincial telecomm...

ژورنال: علوم آب و خاک 2013
ایرج اله دادی, , حسینعلی علیخانی, , غلامعباس اکبری, , مهدی زارعی, , مهدی قورچیانی, ,

In order to evaluate the effect of arbuscular mycorrhizal (AM) fungi and Pseudomonas fluorescens bacteria on phosphorus fertilizer use efficiency, mycorrhizal dependence and grain yield and dry matter yield of maize under water deficit conditions, a field experiment was conducted as split-split plot arrangement based on randomized complete block design with three replications. The treatments in...

B.H. Maleki N. Aghayi

Data envelopment analysis is a method for evaluating the relative efficiency of a collection of decision making units. The DEA classic models calculate each unit’s efficiency in the best condition, meaning that finds a weight that the DMU is at its maximum efficiency. In this paper, utilizing the directional distance function model in the presence of undesirable outputs, the efficiency of each ...

افشار, شهرآرا, حاج آقازاده, محمد, حسنی, حامد, ستوده قره باغ, رحمت, معتمدداشلی برون, امیر, کاکویی, حسین, گل بابایی, فریده,

Introduction: Emission of volatile organic compounds through industrial processes to the environment has been received more attentions currently. Photocatalytic oxidation process as a new emerging technique in air purification can be substituted for conventional techniques such as activated carbon adsorption. In photocatalytic oxidation process, pollutant molecules decompose to water and carbo...

Journal: :تحقیقات آفات گیاهی 0
فرشته امیر محمدی جلال جلالی سندی

essential oil of rosmarinus officinallis was investigated on toxicity and physiological aspect of elm leaf beetle xanthogaleruca luteola mull. for 3rd instar larvae and adults in controlled condition (25 ± 2 °c; 14:10ld; 65% rh). lc50 were estimated 2.55 and 1.11 for 3rd instar larvae and adults respectively. the effect of lc50 dose on remaining insects were investigated on nutritional indices....

Journal: :journal of crop protection 2015
fariba mehrkhou mahdieh musavi ali asghar talebi

the beet armyworm spodoptera exigua (hübner) is a serious and economically important pest of solanaceous crops worldwide. the nutritional indices of this pest on three host plants including pepper capsicum frutescens, eggplant solanum melongena and tomato solanum lycopersicum were determined under laboratory conditions at 26 ± 1 °c, 60 ± 5% rh and 16: 8 (l: d) h. the highest relative consumptio...

Journal: :international journal of data envelopment analysis 2014
m. nazari m.r. mozaffari j. gerami

in data envelopment analyze (dea) the scale efficiency in the input-oriented ccr model is less than or equal to the scale efficiency in dea based on the fractional analysis (dea-r). also, the scale efficiency in case of multiple inputs and one output and vice versa the scale efficiencies are equal in dea and dea-r. in this paper, first, dea-r model with weight restrictions when there is relativ...

ژورنال: بیمارستان 2012
ایل بیگی, علیرضا, پیوندی, محمد تقی, کاظمی, مصطفی,

Background: The aim of this research was to measure and compare relative efficiency of general hospitals under supervision of Mashhad University of Medical Sciences (MUMS). The study also seek to investigate the likely relationship between the official evaluating scores reported by MUMS with findings of this study. Materials & Methods: Data Envelopment Analysis (DEA) is utilized to determine r...

Journal: :بوم شناسی کشاورزی 0
زهرا صابر همت اله پیردشتی محمدعلی اسماعیلی ارسطو عباسیان

in order to evaluate the efficiency of plant growth promoting rhizobacteria (pgpr) plus nitrogen and phosphorous chemical fertilizers on relative agronomic efficiency of p and n fertilizers and some agronomic parameters of wheat (triticum aestivum l.) cultivar n-80-19, an experiment was conducted at sari agricultural sciences and natural resources university during growing season of 2008-2009. ...

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