Investigations of the pi N total cross sections at high energies using new FESR: log nu or (log nu)^2 [PDF]
, 2002 We propose to use rich informations on pi p total cross sections below N= 10 GeV in addition to high-energy data in order to discriminate whether these cross sections increase like log nu or (log nu)^2 at high energies, since it is difficult to ...
A. Firestone +22 more
core +1 more source
Orthogonal Matching Pursuit: A Brownian Motion Analysis [PDF]
, 2011 A well-known analysis of Tropp and Gilbert shows that orthogonal matching pursuit (OMP) can recover a k-sparse n-dimensional real vector from 4 k log(n) noise-free linear measurements obtained through a random Gaussian measurement matrix with a ...
Fletcher, Alyson K., Rangan, Sundeep
core +1 more source
Asteroseismic surface gravity for evolved stars [PDF]
, 2013 Context: Asteroseismic surface gravity values can be of importance in determining spectroscopic stellar parameters. The independent log(g) value from asteroseismology can be used as a fixed value in the spectroscopic analysis to reduce uncertainties due ...
Basu, Sarbani +6 more
core +5 more sources
Deciphering the period spacing pattern in the oscillation spectrum of the SPB star KIC 7760680 [PDF]
, 2017 We present the analysis of KIC 7760680, the rotating Slowly Pulsating B-type star identified in the Kepler photometry. The oscillation spectrum of the star exhibits a series of 36 frequencies which are quasi-equally spaced in period. We confirm that this
Daszyńska-Daszkiewicz, Jadwiga +2 more
core +2 more sources
A Strict Test of Stellar Evolution Models: The Absolute Dimensions of Massive Benchmark Eclipsing Binary V578 Mon [PDF]
, 2014 We determine the absolute dimensions of the eclipsing binary V578 Mon, a detached system of two early B-type stars (B0V + B1V, P$=$2.40848 d) in the star-forming region NGC 2244 of the Rosette Nebula.
Chew, Y. Gómez Maqueo +5 more
core +4 more sources
Distributed-based massive processing of activity logs for efficient user modeling in a Virtual Campus [PDF]
, 2013 This paper reports on a multi-fold approach for the building of user models based on the identification of navigation patterns in a virtual campus, allowing for adapting the campus’ usability to the actual learners’ needs, thus resulting in a great ...
Caballé Llobet, Santiago +1 more
core +4 more sources
Categorical data analysis using a skewed Weibull regression model
, 2017 In this paper, we present a Weibull link (skewed) model for categorical response data arising from binomial as well as multinomial model. We show that, for such types of categorical data, the most commonly used models (logit, probit and complementary log-
Caron, Renault +3 more
core +2 more sources
Petrophysical Well Log Analysis through Intelligent Methods [PDF]
SPE Bergen One Day Seminar, 2017 Abstract This work is focused on exploring the applicability of intelligent methods in assessing porosity and permeability in the context of reservoir characterization. The main motivation underlying our study is that appropriate estimation of reservoir petrophysical parameters such as porosity and/or permeability is a key step for in ...
Moghadasi, Leili +3 more
openaire +1 more source
On reverse hypercontractivity [PDF]
, 2012 We study the notion of reverse hypercontractivity. We show that reverse hypercontractive inequalities are implied by standard hypercontractive inequalities as well as by the modified log-Sobolev inequality.
Mossel, Elchanan +2 more
core +4 more sources
Thermal structure of hot non-flaring corona from Hinode/EIS [PDF]
, 2014 In previous studies a very hot plasma component has been diagnosed in solar active regions through the images in three different narrow-band channels of SDO/AIA.
Del Zanna, G. +3 more
core +1 more source