نتایج جستجو برای: energy eff ciency

تعداد نتایج: 674090  

The Cloud Computing model leverages virtualization of computing resources allowing customers to provision resources on-demand on a pay-as-you-go basis. During recent years, the power consumption of datacenters in cloud environment attracted researchers. Optimization of energy consumption can be performed by different methods including virtual machine (VM) consolidation. This technique can reduc...

2016
Adam Kolinski Boguslaw Sliwczynski

Performance measurement is the basis of management with regard to controlling activities of an enterprise. Development of appropriate indicators and measurement techniques lead to many problems. Th e majority of enterprises begin to evaluate the effi ciency, by the implementation of fi nancial indicators that are practically incalculable. Only at a later stage, are measures used that are relate...

Journal: :Central Asian economic review 2022

The article systematizes the concept of small business and conducts research to determine relationship between corporate social responsibility (CSR) development. purpose study is test identify which external or internal elements CSR most strongly aff ect businesses. main goal our work show how ects effi ciency company. Methodology. data 100 businesses were analyzed through a questionnaire. We d...

2011
Alex J. Bowers

Much attention has been paid of late to teachers’ contributions to student gains (Rivkin, Hanushek, & Kain, 2005; Bill & Melinda Gates Foundation, 2010), but how big of an impact do principals have on student achievement? Compared to the research on teacher quality, the literature on the characteristics of effective principals has remained relatively untapped until quite recently (Branch, Hanus...

Journal: :Carbon energy 2021

Front cover image: Despite the remarkable progress made on high-performing cathode materials, showstoppers of aqueous Zn-metal batteries are dendrite problem and poor reversibility zinc-metal anode (ZMA). In article number 10.1002/cey2.70, research teams by Xiulei Ji, Jia-Xing Jiang, Chong Fang P. Alex Greaney collaborated to develop a ZnCl2/LiCl mixture water-in-salt electrolyte, in which high...

Journal: :مهندسی برق مدرس 0
mohammad moltafet m.sc. student, department of electrical and computer engineering, tarbiat modares university, tehran iran, paiz azmi full professor, department of electrical and computer engineering, tarbiat modares university, tehran iran ali karimi kelayeh m.sc. student, department of electrical and computer engineering, tarbiat modares university, tehran iran moslem foruzesh m.sc. student, department of electrical and computer engineering, tarbiat modares university, tehran iran

in this paper, downlink resource allocation for a sparse code multiple access (scma) based heterogeneous  cellular networks (hcn) is investigated. the main aim of this paper is to obtain joint power allocation and codebook assignment to achieve the least total system transmit power. in this regard, the proposed objective function is formulated as total transmit power subject to users minimum ra...

2017
Ignasi Bartomeus Daniel P. Cariveau Rachael Winfree

Th e response and eff ect trait framework, if supported empirically, would provide for powerful and general predictions about how biodiversity loss leads to loss in ecosystem function. Th is framework proposes that species traits will explain how diff erent species respond to disturbance (i.e. response traits) as well as their contribution to ecosystem function (i.e. eff ect traits). However, p...

Journal: :Lancet 2013
Alex Stagnaro-Green Elizabeth N Pearce

292 www.thelancet.com Vol 382 July 27, 2013 Iodine, a crucial micronutrient, is essential for thyroid hormone production and for normal in-utero neurodevelopment. During pregnancy, iodine intake must be increased by 50% because of physiological increases in maternal thyroid hormone production, an increase in maternal renal iodine losses, and fetal iodine needs for thyroid hormone production. Io...

2015
J.Peter Clinch John D. Healy

There are a number of driving forces behind energy e$ciency. In recent times, the Kyoto Protocol has been the most prominent in bringing energy e$ciency to the fore. In some countries, the domestic sector has been highlighted as an area which has a signi"cant potential for improvement. However, prior to the implementation of large-scale energy-e$ciency programmes, it is important to evaluate wh...

2007
Krzysztof KLAMKOWSKI Waldemar TREDER

Th e most of previous studies have been focused on the eff ect of water stress on plant yielding. However, the conditions in which plants grow from the moment of planting might aff ect their morphology and physiological response. Th e aim of this study was to examine the eff ect of water defi ciency on growth and plant physiological response of strawberry (Fragaria x ananassa Duch. cv. ‘Salut’)...

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