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Results 11 - 20
of
857
Reduced Bias Semi-parametric Quantile Estimators with a Linear-type Property
"... isabel.alves fc.ul.pt ..."
Frequentist properties of Bayesian posterior probabilities of phylogenetic trees under simple and complex substitution models
- SYST. BIOL
, 2004
"... What does die posterior probability of a phylogenetic tree mean? This simulation study shows that Bayesian posterior probabilities have the meaning that is typically ascribed to them; the pt>sterkir probability ot'a tree is the probability that the tree is corwct, assuming th>.it the mo ..."
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Cited by 101 (7 self)
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What does die posterior probability of a phylogenetic tree mean? This simulation study shows that Bayesian posterior probabilities have the meaning that is typically ascribed to them; the pt>sterkir probability ot'a tree is the probability that the tree is corwct, assuming th
On Estimating the Useful Work Distribution of Parallel Programs under the P³T: A Static Performance Estimator
- CONCURRENCY, PRACTICE AND EXPERIENCE (ED. GEOFFREY FOX
, 1996
"... In order to improve a parallel program's performance it is critical to evaluate how even the work contained in a program is distributed over all processors dedicated to the computation. Traditional work distribution analysis is commonly performed at the machine level. The disadvantage of this m ..."
Abstract
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Cited by 5 (2 self)
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of this method is that it cannot identify whether the processors are performing useful or redundant (replicated) work. This paper describes a novel method of statically estimating the useful work distribution of distributed memory parallel programs at the program level, which carefully distinguishes between
A Remark on Volatility Estimation by Using Bootstrap
"... Let Xt =�Pt, Pt,1�=Pt,1 be the daily return of a stock, let Xt;T =�Pt, Pt,T �=Pt,T be the return over period T �weekly or monthly�, calculated at time t. The volatility Vt;T ..."
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Let Xt =�Pt, Pt,1�=Pt,1 be the daily return of a stock, let Xt;T =�Pt, Pt,T �=Pt,T be the return over period T �weekly or monthly�, calculated at time t. The volatility Vt;T
CINTAL- Centro de Investigação Tecnológica do Algarve Universidade do Algarve Estimation of anisotropic temperature perturbation statistics of MREA ’03 data
, 2006
"... www.ualg.pt/siplab ..."
Pt Utilization Analysis Using CO Adsorption
"... Methods for estimating the Pt utilization of an MEA, i.e. the ratio of the electrochemically active Pt surface area of the MEA to the Pt surface area of the catalyst, were examined. The most reliable and accurate estimation was obtained by the method which uses CO as the probe for both the surface a ..."
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Methods for estimating the Pt utilization of an MEA, i.e. the ratio of the electrochemically active Pt surface area of the MEA to the Pt surface area of the catalyst, were examined. The most reliable and accurate estimation was obtained by the method which uses CO as the probe for both the surface
frfr PtP* ~ J30^f
"... Public reporting ourden for cn.s collection of information is estimated to average l hour oer response, including the time tor reviewing instructions, searching existing data sources. qathermq and maintaining the data needed, and completing and reviewing the collection of information. Send comments ..."
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Public reporting ourden for cn.s collection of information is estimated to average l hour oer response, including the time tor reviewing instructions, searching existing data sources. qathermq and maintaining the data needed, and completing and reviewing the collection of information. Send comments
Catalytic Oxidation of Thiourea at Alumina Modified Pt Electrode
"... Abstract: Catalytic oxidation of thiourea has been studied at alumina modified Pt electrode using cyclic voltammetry. The results indicate the suitability of alumina modified Pt electrode for voltammetric determination of thiourea. The catalytic peak currents are linearly dependent on the thiourea c ..."
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concentration in the range 2.5 × 10-5 – 7.0 × 10-3 M. The usefulness of the method was tested in determination of thiourea in real samples. Moreover, in this work the heterogeneous electron transfer rate constants of thiourea at the surface of modified and unmodified Pt electrodes were estimated by comparing
πK Scattering in Three Flavour ChPT ∗
, 2004
"... Abstract: We present the scattering lengths for the πK processes in the three flavour Chiral Perturbation Theory (ChPT) framework at next-to-next-to-leading order (NNLO). The calculation has been performed analytically but we only include analytical results for the dependence on the low-energy const ..."
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Abstract: We present the scattering lengths for the πK processes in the three flavour Chiral Perturbation Theory (ChPT) framework at next-to-next-to-leading order (NNLO). The calculation has been performed analytically but we only include analytical results for the dependence on the low
Canonical Expansion of PT −Symmetric Operators and Perturbation Theory
, 2004
"... Let H be any PT symmetric Schrödinger operator of the type −¯h 2 ∆+(x 2 1 +...+ x 2 d)+ igW(x1,...,xd) on L 2 (R d), where W is any odd homogeneous polynomial and g ∈ R. It is proved that PH is self-adjoint and that its eigenvalues coincide (up to a sign) with the singular values of H, i.e. the eige ..."
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Let H be any PT symmetric Schrödinger operator of the type −¯h 2 ∆+(x 2 1 +...+ x 2 d)+ igW(x1,...,xd) on L 2 (R d), where W is any odd homogeneous polynomial and g ∈ R. It is proved that PH is self-adjoint and that its eigenvalues coincide (up to a sign) with the singular values of H, i
Results 11 - 20
of
857
