نتایج جستجو برای: energy indices

تعداد نتایج: 745046  

2016
Velappan Shalini Krishna Prasanna

This research investigates the portfolio diversification benefits of commodities in the backdrop of uncertainty caused by the financial crisis, increased Financialization and speculation in commodity markets. Portfolios are formed out of varied asset classes comprise of equity, bond, infra structure, commodity spot & futures indices and sectoral indices such as agri, metals and energy sectors o...

Journal: :جنگل و فرآورده های چوب 0
زینب جوانمرد دانش آموختۀ کارشناسی ارشد جنگلداری دانشکدۀ منابع طبیعی دانشگاه تربیت مدرس، نور، ایران مسعود طبری کوچکسرایی استاد گروه جنگلداری دانشکدۀ منابع طبیعی دانشگاه تربیت مدرس، نور، ایران حمید رضا عیسوند استادیار گروه زراعت، دانشگاه لرستان، دانشکدۀ کشاورزی، خرم آباد، ایران فاطمه احمدلو دانشجوی دکتری جنگلداری دانشکدۀ منابع طبیعی دانشگاه تربیت مدرس، نور، ایران

to answer this question that if osmopriming improve germination indices in salinity-affected seeds of pinus eldarica medw., a factorial experiment in randomized completely design was carried out with three replications. osmotic treatments were applied in 5 levels (-2, -4, -6 and -8 bar for 72 hours and non-primed) by polyethylene glycol (peg) and salinity treatments in 8 levels (0, 40, 80, 120,...

قاسم نژاد ملکی, حیدر محمد, نصیریان, نیما, کج‌بافیان, حسین,

In order to determine and evaluate the mechanization indices, including energy and economic, in production of greenhouse cucumber and tomato, a study was carried out using sequential design- factorial with three replications in Khuzestan province, Iran, during 2011-2012. The greenhouse structures and production methods in all the systems were similar. The evaluated treatments included two culti...

2012
Kyu-Ho Kim Sang-Bong Rhee Kyung-Bin Song Kab-Ju Hwang Kwang Y. Lee

This paper presents an optimal power flow method based on the generation rescheduling priority to enhance transient stability in power systems. In order to determine the generation rescheduling priority the energy margin sensitivity indices are calculated. The candidate generators for generation rescheduling are determined by the energy margin sensitivity indices and then optimal power flow (OP...

Journal: :Expert Syst. Appl. 2011
Je-Liang Liou Pei-Ing Wu

This study employs data envelopment analysis approach to construct the meta-frontier global technical efficiency of energy use index and global technical efficiency of CO2 emission control index to measure the energy use efficiency and CO2 emission control efficiency at country level. Destruction of these efficiency indices into pure technical efficiency and scale efficiency sub-indices is to c...

Journal: :آب و خاک 0
خلیل قربانی علی خلیلی سیدکاظم علوی نژاد غلامرضا نخعی زاده

abstract precipitation is an important variable which is used in definition of drought. based on precipitation amounts, some indices are devised for drought monitoring including, the standardized precipitation index (spi) and the standard index of annual precipitation (siap). each of these drought indices are classified into some classes so that each class descripts a given severity of drought....

Journal: :Journal of Computational Chemistry 1997
Curt M. Breneman Marlon Rhem

Ž . The new transferable atom equivalent TAE method for rapid molecular electron density reconstruction was used to compute a set of molecular surface property descriptors. These descriptors were then used to construct HPLC column capacity factor PLS models for a series of high-energy materials. The new TAE-derived surface property indices are also available from ab initio or semiempirical wave...

Journal: :تحقیقات مهندسی کشاورزی 0
غلامرضا روحی عضو هیئت علمی گروه مکانیک دانشگاه آزاد اسلامی واحد ایذه میر حسین پیمان استادیار گروه مکانیک ماشین های کشاورزی دانشگاه گیلان سعید مینایی دانشیار گروه مکانیک ماشین های کشاورزی دانشگاه تربیت مدرس

the rice conversion process is an agricultural transformative industry that consumes a great deal of fossil fuel and electricity. in this study, the effect of different factors on energy consumption, energy consumption index and whitening index were investigated. the experimental design was a split plot design with four whitening periods (15, 30, 45, 60s) (main plot), three rice varieties (khaz...

Journal: :Journal of chemical information and computer sciences 2001
Ovidiu Ivanciuc Teodora Ivanciuc Douglas J. Klein William A. Seitz Alexandru T. Balaban

Chemical structures of organic compounds are characterized numerically by a variety of structural descriptors, one of the earliest and most widely used being the Wiener index W, derived from the interatomic distances in a molecular graph. Extensive use of such structural descriptors or topological indices has been made in drug design, screening of chemical databases, and similarity and diversit...

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