نتایج جستجو برای: lower estimate

تعداد نتایج: 896600  

By applying multivariate statistical analysis, this research aimed to estimate the heritability and find relationships between the vegetative and reproductive characteristics of Prunus scoparia and Prunus elaeagnifolia. Twenty genotypes of each species were selected randomly from cultivated populations and twenty-two traits including the tree, leaf, flower, nut and kernel attributes were measur...

2007
Zhen-Qing Chen Panki Kim Takashi Kumagai

In this paper, we investigate pure jump symmetric processes in R whose jumping kernel is comparable to the one for truncated rotationally symmetric α-stable process where jumps of size larger than a fixed number κ > 0 is removed. We establish sharp two-sided heat kernel estimate and derive parabolic Harnack principle for such jump-type processes. Moreover, we show that bounded functions that ar...

2011
THOMAS CHEN

We prove a Beale-Kato-Majda criterion for the loss of regularity for solutions of the incompressible Euler equations in Hs(R3), for s > 5 2 . Instead of double exponential estimates of Beale-Kato-Majda type, we obtain a single exponential bound on ‖u(t)‖Hs involving the dimensionless parameter introduced by P. Constantin in [2]. In particular, we derive lower bounds on the blowup rate of such s...

2004
Martin Lally

This paper estimates the standard and tax-adjusted market risk premiums in New Zealand using historical data between 1931-2002 and a variant of the Siegel (1992) methodology. Similar to Siegel we present evidence that real bond yields in New Zealand were low over the period 1931-2002 and this may bias upwards an Ibbotsontype estimate of the market risk premium. Using an estimate for the histori...

2008
W. B. Johnson B. Zheng

Let 1 < q < p < ∞ and q ≤ r ≤ p. Let X be a reflexive Banach space satisfying a lower-lq-tree estimate and let T be a bounded linear operator from X which satisfies an upper-lp-tree estimate. Then T factors through a subspace of ( ∑ Fn)lr , where (Fn) is a sequence of finite-dimensional spaces. In particular, T factors through a subspace of a reflexive space with an (lp, lq) FDD. Similarly, let...

Journal: :International Journal of Cardiovascular Sciences 2015

B.L. Mo CH.X. Chen J.W. Gao M. Xu W. Dai X.M. Wang,

In order to estimate responses of growth rate and growth hormone of Clarias gariepinus to stocking density, fish (initial weight 30.71 ± 0.89 g) were stocked in 120-L tanks at densities of 35, 65, 95, and 125 kg/m3 for 60 days. On day 30 and 60, the fish growth rates were measured, pituitary growth hormone (GH) mRNA levels and serum GH concentrations were examined by real-time qPCR and ELISA te...

Journal: :journal of sciences, islamic republic of iran 2011
r. lashkaripour

let = be a non-negative matrix. denote by the supremum of those , satisfying the following inequality: where , , and also is increasing, non-negative sequence of real numbers. if we used instead of the purpose of this paper is to establish a hardy type formula for , where is hausdorff matrix and a similar result is also established for where in particular, we apply our results to the cesaro...

Journal: :iranian journal of radiation research 0
f. bouzarjomehri department of medical physics, shahid sadooghi university of medical sciences, yazd, iran v. tsapaki department of medical physics, konstantopoulio hospital, nea ionia, athens, greece

background: coronary angiography is a commonly performed diagnostic procedure with life saving benefits for the patient. however, this procedure involves relatively high radiation dose. the purpose of this study was to determine the average effective dose of patients undergoing coronary angiography and to estimate the associated radiation risk in terms of fatal malignancy. materials and methods...

2007
Vincenzo Caglioti Giuseppe Borghi

This paper addresses the problem of updating a rough, odometric estimate of the pose of mobile robot, by means of a single range measure. The linearization errors, typical in curvilinear environments, often make the Extended Kalman (EK) estimate unreliable. Therefore, a second-order method is proposed, in which the measurement result is approximated in terms of a two-degree function of the pose...

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