نتایج جستجو برای: cross efficiency

تعداد نتایج: 866370  

Journal: :International Journal of Research in Business and Social Science (2147- 4478) 2020

Cross efficiency is one of the useful methods for ranking of decision making units (DMUs) in data envelopment analysis (DEA). Since the optimal solutions of inputs and outputs weights are not unique so the selection of them are not simple and the ranks of DMUs can be changed by the difference weights. Thus, in this paper, we introduce a method for ranking of DMUs which does not have a unique pr...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1392

abstract the present study deals with a comparison between reactive and pre-emptive focus-on-form in terms of application and efficiency. it was conducted in an intermediate english class in shahroud. 15 male learners participated in this research and their age ranged from 18 to 25. a course book, new interchange 3, and a complementary book were used. every session the learners gave lectures o...

2013
C. Perrella P. S. Light J. D. Anstie F. Benabid T. M. Stace A. G. White A. N. Luiten

C. Perrella,1,2 P. S. Light,1,2 J. D. Anstie,1,2 F. Benabid,3 T. M. Stace,4 A. G. White,5 and A. N. Luiten1,2 1School of Physics, University of Western Australia, Perth, Western Australia 6009, Australia 2Institute for Photonics and Advanced Sensing (IPAS) and the School of Chemistry and Physics, The University of Adelaide, Adelaide, South Australia 5005, Australia 3GPPMM Group, Xlim Research I...

Journal: :European Journal of Operational Research 2014
Juan Du Wade D. Cook Liang Liang Joe Zhu

In many managerial applications, situations frequently occur when a fixed cost is used in constructing the common platform of an organization, and needs to be shared by all related entities, or decision making units (DMUs). It is of vital importance to allocate such a cost across DMUs where there is competition for resources. Data envelopment analysis (DEA) has been successfully used in cost an...

Journal: :Computers & Industrial Engineering 2015
Amar Oukil Gholam R. Amin

Ranking decision making units (DMUs) is one of the most important applications of data envelopment analysis (DEA). In this paper, we exploit the power of individual appreciativeness in developing a methodology that combines crossevaluation, preference voting and ordered weighted averaging (OWA). We show that each stage of the proposed methodology enhances discrimination among DMUs while offerin...

2000
Valery A. Dolgashev Sami G. Tantawi

In a cross field device[1] such as magnetron or cross field amplifier electrons move in crossed magnetic and electric fields. Due to synchronism between electron drift velocity and phase velocity of RF wave, the wave bunches the beam, electron spokes are formed and the bunched electrons are decelerated by the RF field. Such devices have high efficiency (up to 90%), high output power and relativ...

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