نتایج جستجو برای: electrical conductance ec

تعداد نتایج: 263801  

Journal: :Biogeosciences 2021

Abstract. Canopy stomatal conductance is commonly estimated from eddy covariance measurements of the latent heat flux (LE) by inverting Penman–Monteith equation. That method ignores sensible (H) and instead calculates H implicitly as residual all other terms in site energy budget. Here we show that canopy more accurately calculated (EC) both LE using flux–gradient equations define underlie equa...

2004
E. Norberg G. W. Rogers P. Madsen

Electrical conductivity (EC) of milk is an indicator of mastitis, and could, if it shows genetic variation and is genetically correlated to mastitis, be used in a breeding program where selection for reduced mastitis resistance is included. In this study, daily measurements of EC and mastitis were analyzed with a bivariate model. For EC, the estimated heritability was high (0.22 to 0.39), while...

Journal: :Science and Education of the Bauman MSTU 2015

Journal: Desert 2020
B. Roohzad M. Rahmati, N. Hamzehpour,

     Indirect measurement of soil electrical conductivity (EC) has become a major data source in spatial/temporal monitoring of soil salinity. However, in many cases, the weak correlation between direct and indirect measurement of EC has reduced the accuracy and performance of the predicted maps. The objective of this research was to estimate soil EC based on a general linear model via using se...

2015
J Gomez

The purpose of this manuscript is to discuss the current available methods to detect early lesions amenable to prevention. The current evidenced-based caries understanding, based on biological concepts, involves new approaches in caries detection, assessment, and management that should include non-cavitated lesions. Even though the importance of management of non-cavitated (NC) lesions has been...

2000
Thomas W. Tombler Chongwu Zhou Jing Kong Hongjie Dai

Atomic force microscopy tips are used to apply point-like local gates to manipulate the electrical properties of individual single-walled carbon nanotubes ~SWNT! contacted by Ti electrodes. Depleting a semiconducting SWNT at a local point along its length leads to orders of magnitude decrease of the nanotube conductance, whereas local gating to metallic SWNTs causes no change in the conductance...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید