نتایج جستجو برای: tobins q ratio
تعداد نتایج: 616193 فیلتر نتایج به سال:
This report contains a list of some of the more prominent properties and theorems concerning the Kullback-Leibler (KL) discrimination distance. A brief discussion is also provided indicating the type of problems in which the KL distance has been applied. References are provided for the reader’s convenience. 1 Definition For two continuous density functions f1(x), f2(x) the Kullback-Leibler (KL)...
Introduction: A widely used figure of merit in radiofrequency (RF) coil construction and testing is the Q or ‘quality factor.’ Q is a measure of the spectral selectivity of the coil, Q = f0/Δf , where f0 and Δf are the central frequency and bandwidth (FWHM) of the resonance, respectively. A narrow bandwidth (high Q) excludes more noise and results in better signal to noise ratio. Q is also rela...
We present an interferometric and single-dish study of small organic species towardComets C/1995O1 (Hale-Bopp) and C/2002 T7 (LINEAR) using the BIMA interferometer at 3 mm and the ARO 12m telescope at 2 mm. For Comet Hale-Bopp, both the single-dish and interferometer observations of CH3OH indicate an excitation temperature of 105 5 K and an average production rate ratio Q(CH3OH)/Q(H2O) 1:3% at ...
The summary receiver operating characteristic (SROC) curve has been recommended to represent the performance of a diagnostic test, based on data from a meta-analysis. However, little is known about the basic properties of the SROC curve or its estimate. In this paper, the position of the SROC curve is characterized in terms of the overall diagnostic odds ratio and the magnitude of inter-study h...
The paper is devoted to study the H-function defined by the Mellin-Barnes integral H p,q (z) = 1 2πi ∫ L H m,n p,q (s)z ds, where the function H p,q (s) is a certain ratio of products of Gamma functions with the argument s and the contour L is specially chosen. The conditions for the existence of Hm,n p,q (z) are discussed and explicit power and power-logarithmic series expansions of Hm,n p,q (...
We reexamine the predictions of a two-phase model of shadowing in nuclear deep-inelastic scattering in light of new NMC data on the x, A and Q 2 dependence of the ratios of structure functions. The model, which combines vector meson dominance at low Q 2 with diffractive Pomeron exchange for large Q 2 , agrees with the observed small, but non-zero, slopes in log Q 2 , which indicate the importan...
We discuss target mass effects in the polarized virtual photon structure functions gγ 1 (x, Q, P ), gγ 2 (x, Q, P ) for the kinematic region Λ ≪ P 2 ≪ Q, where −Q(−P ) is the mass squared of the probe (target) photon. We obtain the expressions for the structure functions in closed form by inverting the Nachtmann moments for the twist-2 and twist-3 operators. Numerical analysis shows that target...
background and aim : the quick speech in noise (q-sin) test have been designed to evaluate individuals’ ability to recognize speech in noise. this study established to evaluate the test-retest reliability and equivalency of the five test lists of the persian q-sin test in subjects with sensory hearing loss (shl) and normal hearing individuals. methods : this cross-sectional study was performe...
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