نتایج جستجو برای: conductance

تعداد نتایج: 37870  

Journal: :پژوهش های تولید گیاهی 0
بهمن پاسبان اسلام عضو هیات علمی

evaluating of some physiological indices for recognizing water deficit effects, selecting water deficit tolerant oilseed rape genotypes and also evaluation of drought effects on seed and oil yields and its components were the goals of this study. the experiment was conducted as factorial based on a randomized complete blocks design with three replications in east azarbaijan research center for ...

Journal: :Nature communications 2016
Wei Yi Sergey E Savel'ev Gilberto Medeiros-Ribeiro Feng Miao M-X Zhang J Joshua Yang Alexander M Bratkovsky R Stanley Williams

Tantalum oxide memristors can switch continuously from a low-conductance semiconducting to a high-conductance metallic state. At the boundary between these two regimes are quantized conductance states, which indicate the formation of a point contact within the oxide characterized by multistable conductance fluctuations and enlarged electronic noise. Here, we observe diverse conductance-dependen...

2001
Jérôme Bürki Charles A. Stafford

Experimental conductance histograms built from several thousand successive breakings of sodium nanowires 1,2 exhibit peaks up to rather high conductance values (∼ 100× 2e/h). In this paper, we present results from a disordered free-electron model of a metallic nanowire, which was previously successful in describing both conductance histograms and shot noise measurements in gold nanocontacts wit...

Journal: :ACS nano 2013
Sriharsha V Aradhya Michael Frei András Halbritter Latha Venkataraman

We measure simultaneously force and conductance of Ag metal point-contacts under ambient conditions at room temperature. We observe the formation of contacts with a conductance close to 1 G0, the quantum of conductance, which can be attributed to a single-atom contact, similar to those formed by Au. We also find two additional conductance features at ∼0.4 G0 and ∼1.3 G0, which have been previou...

In order to study the effect of irrigation levels and plant growth promoting rhizobacteria on yield, some physiological and biochemical indices of rapeseed, a factorial experiment was conducted based on randomized complete block design with three replications in Agricultural Research Station of Ardabil, Ardabil, Iran in 2016. The factors included in the experiment were irrigation in three level...

Methyl jasmonate and Epi-brassinolide as plant growth regulators have significant biological effects on plant growth, including increased tolerance to salt stress in plants. In this study, the effects of salinity stress and its interaction with methyl jasmonate and Epi-brassinolide on chlorophyll concentration, rate of photosynthesis, transpiration, stomatal conductance and resistance and chlor...

Journal: :Journal of the American Chemical Society 2007
Jordan R Quinn Frank W Foss Latha Venkataraman Mark S Hybertsen Ronald Breslow

The study of electron transport through single molecules is essential to the development of molecular electronics. Indeed, trends in electronic conductance through organic nanowires have emerged with the increasing reliability of electron transport measurements at the single-molecule level. Experimental and theoretical work has shown that tunneling distance, HOMOLUMO gap and molecular conformat...

2013
Gretchen B. North Frank H. Lynch Franklin D. R. Maharaj Carly A. Phillips Walter T. Woodside

Epiphytic plants in the Bromeliaceae known as tank bromeliads essentially lack stems and absorptive roots and instead take up water from reservoirs formed by their overlapping leaf bases. For such plants, leaf hydraulic conductance is plant hydraulic conductance. Their simple strap-shaped leaves and parallel venation make them suitable for modeling leaf hydraulic conductance based on vasculatur...

Journal: :Physical Review Letters 2021

The spin absorption process in a ferromagnetic material depends on the orientation relative to magnetization. Using ferromagnet absorb pure current created within lateral valve, we evidence and quantify sizable dependence of Co, CoFe, NiFe. These experiments allow us determine spin-mixing conductance, an elusive but fundamental parameter spin-dependent transport. We show that obtained values ca...

Journal: :Physical review letters 2008
Michael Wimmer Inanç Adagideli Savaş Berber David Tománek Klaus Richter

We investigate spin conductance in zigzag graphene nanoribbons and propose a spin injection mechanism based only on graphitic nanostructures. We find that nanoribbons with atomically straight, symmetric edges show zero spin conductance but nonzero spin Hall conductance. Only nanoribbons with asymmetrically shaped edges give rise to a finite spin conductance and can be used for spin injection in...

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