نتایج جستجو برای: homogeneity coefficient
تعداد نتایج: 188262 فیلتر نتایج به سال:
V. Parpura and P.G. Haydon (eds.), Astrocytes in (Patho)Physiology of the Nervous System, 1 DOI: 10.1007/978-0-387-79492-1_1, © Springer Science + Business Media, LLC 2009 The history of the morphology and electrophysiology of the neuroglia , which was the historical term used for what are now termed astroglia or astrocytes, is briefly reviewed. The interpretation of these data around 1970 was ...
The statistical NLP and IR literatures tend to make a “homogeneity assumption” about the distribution of terms, either by adopting a “bag of words” model, or in their treatment of function words. In this paper we develop a notion of homogeneity detection to a level of statistical significance, and conduct a series of experiments on different datasets, to show that the homogeneity assumption doe...
Effect of deviation from stoichiometry on transport and mechanical properties of Bi2Se3 polycrystals
The dependences of electrical conductivity, the Hall coefficient, Seebeck thermoelectric power factor and microhardness Bi2Se3 polycrystals on degree deviation from stoichiometry 59.9–60.0 at. % Se temperature (77–300 K) were obtained. samples exhibited n-type conductivity in studied ranges compositions temperatures. boundaries homogeneity region estimated. A non-monotonic behavior concentratio...
abstract infiltration is one of the most important phenomena which is affected by the soil physical and hydraulic characteristics. measurement of infiltration needs the high cost and is time consuming, therefore estimation of infiltration is necessary. also, due to variability of soil moisture, it is important to determine the appropriate model for the estimating the infiltration rate. the pres...
The cardiac magnetic resonance (CMR) of children at 3.0 T presents a unique set of technical challenges because of their small cardiac anatomical structures, fast heart rates, and the limited ability to keep motionless and hold breathe, which could cause problems associated with field inhomogeneity and degrade the image quality. The aim of our study was to evaluate the effect of dual-source par...
OBJECTIVE The present study aimed to translate the English version of the Nutritional Form For the Elderly into Simplified Chinese, as well as to test the reliability (homogeneity and stability) and validity (content and construct validity) of the Chinese version of the Nutritional Form For the Elderly (NUFFE-CHI). DESIGN The study adopted a cross-sectional design. The English version of the ...
CONTEXT Main pancreatic duct stones may contribute to pain in chronic pancreatitis. Extracorporeal shock wave lithotripsy (ESWL) has been used alone or in combination with endoscopic therapy for fragmentation of stones. Published studies have shown mixed efficacy due to small sample size. OBJECTIVE Systematic analysis of all published data evaluating ESWL with or without endoscopic therapy in...
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