Results 21 to 30 of about 3,301,048 (293)

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, Dey, Dipak, Polpo, Adriano, Sinha, Debajyoti   +3 more
core   +2 more sources

Integration of well log analysis data with geochemical data to evaluate possible source rock. Case study from GM-ALEF-1 well, Ras Ghara oil Field, Gulf of Suez-Egypt

Egyptian Journal of Petroleum, 2018
Well logging methodology in geochemical evaluation is an important technique not only for its usefulness as a quick scan of potential source rock, but also in its ability to identify the organic richness (TOC%) of these rocks.
A.A. El-Khadragy, T.F. Shazly, D.A. Mousa, M. Ramadan, M.Z. El-Sawy   +4 more
doaj   +1 more source

The Structure of Stellar Coronae in Active Binary Systems [PDF]

, 2002
A survey of 28 stars using EUV spectra has been conducted to establish the structure of stellar coronae in active binary systems from the EMD, electron densities, and scale sizes. Observations obtained by the EUVE during 9 years of operation are included
A. K. Dupree, Amado P. J., Bowyer S., Brickhouse N. S., Cayrel de Strobel G., Cutispoto G., Diamond C. J., Graffagnino V. G., Griffin R. F., Haisch B., J. Sanz‐Forcada, Kaastra J. S., Marino G., Mewe R., Mitrou C. K., Montes D., Morel P., N. S. Brickhouse, Pan H. C., Pasquini L., Perryman M. A. C., Saar S. H., Schrijver C. J., Strassmeier K. G., Strassmeier K. G.   +24 more
core   +2 more sources

Landscape of Automated Log Analysis: A Systematic Literature Review and Mapping Study

IEEE Access, 2022
Logging is a common practice in software engineering to provide insights into working systems. The main uses of log files have always been failure identification and root cause analysis.
Lukasz Korzeniowski, Krzysztof Goczyla
doaj   +1 more source

Concentration inequalities for Gibbs measures

, 2010
We are interested in Sobolev type inequalities and their relationship with concentration properties on higher dimensions. We consider unbounded spin systems on the d-dimensional lattice with interactions that increase slower than a quadratic. At first we
Papageorgiou, Ioannis
core   +1 more source

Reservoir Characterization and Volumetric Analysis of “Lee” Field, Onshore Niger Delta, Using 3D Seismic and Well Log Data

Journal of Applied Sciences and Environmental Management, 2020
Three dimensional (3D) seismic data, and a suite of four geophysical well logs from four wells located on the Lee field, Niger Delta were analyzed  using Petrel software for the aim of reservoir characterization and  volumetric analysis of the field ...
P. Adigwe, S. Inichinbia
doaj   +2 more sources

Pore Pressure Prediction and Fluid Contact Determination: A Case Study of the Cretaceous Sediments in the Bredasdorp Basin, South Africa

Applied Sciences
Pore pressure prediction gives drillers an early warning of potential oil and gas kicks, enabling them to adjust mud weight pre-emptively. A kick causes a delay in drilling practices, blowouts, and jeopardization of the wells.
Phethile Promise Shabangu, Moses Magoba, Mimonitu Opuwari   +2 more
doaj   +1 more source

Intelligent Technology for Well Logging Analysis [PDF]

, 2006
Well logging analysis plays an essential role in petroleum exploration and exploitation. It is used to identify the pay zones of gas or oil in the reservoir formations. This paper applies intelligent technology for well logging analysis, particular combining data mining and expert system together, and proposes an intelligent system for well log ...
Zhongzhi Shi, Ping Luo, Yalei Hao, Guohe Li, Markus Stumptner, Qing He, Gerald Quirchmayr   +6 more
openaire   +1 more source

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, Claret, A., Garcia, E. V., Hensberge, H., Pavlovski, K., Stassun, Keivan G.   +5 more
core   +4 more sources

Tight Bounds for MIS in Multichannel Radio Networks [PDF]

, 2015
Daum et al. [PODC'13] presented an algorithm that computes a maximal independent set (MIS) within $O(\log^2 n/F+\log n \mathrm{polyloglog} n)$ rounds in an $n$-node multichannel radio network with $F$ communication channels. The paper uses a multichannel
A Ephremides, C Newport, F Kuhn, I Chlamtac, M Luby, M Sherman, R Bar-Yehuda, S Daum, S Dolev, S Dolev   +9 more
core   +2 more sources