نتایج جستجو برای: efficiency indices

تعداد نتایج: 467688  

Journal: :JCP 2014
Hanwu Luo Jiangjun Ruan Fang Li

To promote the development of electric vehicles (EVs), many charging stations have been built. The construction of charging stations costs a lot, hence it’s necessary to evaluate their energy efficiency due to their main aims of energy conservation. In this paper, a fuzzy model based on the fuzzy comprehensive evaluation (FCE) and analytic hierarchy process (AHP) is presented to evaluate the en...

Journal: :iran agricultural research 2010
s. m. nassiri s. singh

in this paper, non parametric data envelopment analysis (dea) was subjected to the energy data of wheat producers in punjab state, india, and technical, pure technical and scale efficiencies were calculated for farms both category wise and zone wise. the main objective was to determine the strength of the correlation between non-parametric efficiencies and indices such as energy ratio and speci...

Journal: :Optics express 2011
Xing Sheng Lirong Zeng Broderick Juejun Hu Li Yang Anat Eshed Eugene A Fitzgerald Jurgen Michel Lionel C Kimerling

We developed a high-index-contrast photonic structure for improving the light extraction efficiency of light-emitting diodes (LEDs) by a self-assembly approach. In this approach, a two-dimensional grating can be non-lithographically integrated on the top of virtually any types of LEDs with controlled structural parameters and material indices. As a proof of concept, our designed photonic struct...

2003
Tom Griffin

This paper compares the Portuguese and Bulgarian consumer price indices (CPI) and attempts to identify some areas in which the CPI compilation methodology could be improved in the two countries. This work is organised into six sections. The first section briefly describes the organisational structure on which the production of the CPI is based in the two countries. The second section focuses on...

2015
Viviane Castello-Simões Vinicius Minatel Marlus Karsten Rodrigo Polaquini Simões Natália Maria Perseguini Juliana Cristina Milan Ross Arena Laura Maria Tomazi Neves Audrey Borghi-Silva Aparecida Maria Catai

BACKGROUND Circulatory power (CP) and ventilatory power (VP) are indices that have been used for the clinical evaluation of patients with heart failure; however, no study has evaluated these indices in patients with coronary artery disease (CAD) without heart failure. OBJECTIVE To characterize both indices in patients with CAD compared with healthy controls. METHODS Eighty-seven men [CAD gr...

Journal: :پژوهش آب در کشاورزی 0
سید حسن طباطبائی دانشیار گروه مهندسی آب، دانشکدهکشاورزی، دانشگاه شهرکرد. سارا مردانی نژاد دانشجوی کارشناسی ارشدآبیاری و زهکشی، دانشکده کشاورزی، دانشگاه همدان. حمید زارع ابیانه دانشیار گروه مهندسی آب، دانشکده کشاورزی، دانشگاه همدان.

the present research was conducted to study the effect of irrigation treatments on growth indices, yield, and water use efficiency of long green pepper (capsicum annuum l.) at the research greenhouse of shahrekord university. this experiment was done in a clay-loam soil using randomized design with four treatments i.e. 40%, 60%, 80%, and 100 percent of water requirement and three replications, ...

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