نتایج جستجو برای: n efficiency

تعداد نتایج: 1339702  

To model the active layer in the hetero-junction solar cells, the C60, C70, PC60BM, PCBDAN fullerenes as acceptor, and (OS)n=1) oligoselenophenes as donor were considered. The (OS)n=14/C60, (OS)n=14/C70, (OS)n=14/PC60BM, and (OS)n=14/PCBDAN blends as a model of the active layer in the BHJ solar cell were chosen, and the optoelectronic properties were studied. The calculated efficiency of these ...

Journal: :international journal of environmental research 2013
r.h.r. costa d.b. wolff v.s. souto

a biofilm sequencing batch reactor with a volume of 1.42 m3, nylon nets providing a 4,140 m2/m3 support area for biofilms and an automated operation with 8 hour cycles was studied. the duration of the experiment was 135 days. removal efficiencies e≥ 80% were obtained for carbonaceous matter, producing an effluent with 31±26.8 mg/l of filtered cod, 7±3.6 mg/l of bod5 and 12±3.2 mg/l of toc. the ...

Journal: :علوم گیاهان زراعی ایران 0
زینب بیات دانشجوی کارشناسی ارشد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران علی احمدی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران منیژه سبکدست مربی پردیس کشاورزی و منابع طبیعی دانشگاه تهران

the aim of this study was to investigate the genotype effect on nitrogen remobilization and its relationship with yield and grain protein concentration in genotypes of wheat during grain filling. twelve wheat cultivars different in origin and varying with grain yield and grain protein percentage were selected. a randomized complete block design was used. plants were harvested at anthesis and ma...

1995
BOSCO S. TJAN WENDY L. BRAJE GORDON E. LEGGE DANIEL KERSTEN

The purpose of this study was to establish how efficiently humans use visual information to recognize simple 3-D objects. The stimuli were computer-rendered images of four simple 3-D objects-wedge, cone, cylinder, and pyramid~each rendered from 8 randomly chosen viewing positions as shaded objects, line drawings, or silhouettes. The objects were presented in static, 2-D Gaussian luminance noise...

Journal: :J. Economic Theory 2007
Yuichi Yamamoto

This paper studies N player infinitely repeated games with imperfect private monitoring where the discount factor is close to unity. Ely and Valimaki [4] (written as EV below) construct a strategy which makes players indifferent among their actions in each period and show the folk theorem in prisoner’s dilemma games with two players when monitoring is almost perfect. However, their analysis of ...

2006
A. E. Sitnitsky

A realistic physical model for the so called rate promoting vibration (RPV) at enzyme action is constructed. The origin of the RPV is assumed to be an oscillating electric field produced by long-lived localized vibrational modes in protein dynamics, namely, by the so called discrete breather (DB) in secondary structure. The strength of interaction of the RPV with the reaction coordinate is eval...

2010
Oleg Semyonov Arsen Subashiev Zhichao Chen Serge Luryi

Recombination of minority carriers in heavily doped n-InP wafers has been investigated using spectral and time-resolved photoluminescence at different temperatures. Studies of the transmitted luminescence were enabled by the partial transparency of the samples due to the Moss–Burstein effect. Temporal evolution of the transmitted luminescence shows virtually no effect of surface recombination b...

Journal: :Physical review letters 2004
Hans-Andreas Engel Vitaly N Golovach Daniel Loss L M K Vandersypen J M Elzerman R Hanson L P Kouwenhoven

We consider electron spin qubits in quantum dots and define a measurement efficiency e to characterize reliable measurements via n-shot readouts. We propose various implementations based on a double dot and a quantum point contact (QPC) and show that the associated efficiencies e vary between 50% and 100%, allowing single-shot readout in the latter case. We model the readout microscopically and...

Journal: :نامه انجمن حشره شناسی ایران 0
f. faraji y. fathipour s. jafari

the foraging behavior of a natural enemy is greatly affected by temperature. the influence ofdifferent constant temperatures on the functional response and prey consumption of the mated female ofneoseiulus barkeri hughes on nymphal stages of tetranychus urticae koch was evaluated. four ambienttemperatures (20, 25, 30 and 35 â± 1â°c) and six prey densities (2, 4, 8, 16, 32 and 64 individuals) we...

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