Results 51 to 60 of about 3,152,770 (169)

Variability Studies with SDSS

, 2003
6 pages, 4 color figures, contribution for the workshop "Variability with Wide-field Imagers", Lampedusa, September 16-20 ...
Ivezic, Z., Lupton, R. H., Anderson, S., Eyer, L., Juric, M., Knapp, G. R., Miknaitis, G., Gunn, J. E., Rockosi, C. M., Schlegel, D., Strauss, M. A., Stubbs, C., Berk, D. E. Vanden   +12 more
openaire   +2 more sources

SEARCH FOR VARIABLE STARS AND THEIR STUDY

Odessa Astronomical Publications, 2016
We search for variable stars and study them using our CCD observations, observations available in the CSS, NSVS, ASAS-3 and Super-WASP online public archives.Our CCD observations were performed using the Zeiss- 1000 telescope of the V.G.
R. I. Kokumbaeva, V. A. Zakhozhay, A. V. Khruslov   +2 more
doaj   +1 more source

Numerical study on flow past an oscillating plate with variable temperature and uniform mass diffusion under chemical reaction

International Journal of Applied Mechanics and Engineering, 2014
An numerical study on an unsteady flow past an oscillating semi-infinite vertical plate with variable temperature and uniform mass diffusion under the influence of a first order chemical reaction has been carried out.
A.R. Vijayalakshmi, M. Selvajayanthi
doaj   +1 more source

An improved class of predictive estimators of population distribution function in the presence of non-response

Heliyon
In the present work, we have proposed a novel general class of estimators for the estimation of population distribution function in two distinct situations of non-response.
Mahamood Usman, Garib Nath Singh, Jagadeesh Kumar M S, Afsar Basha S M   +3 more
doaj   +1 more source

Hybrid class of robust type estimators for variance estimation using mean and variance of auxiliary variable

Heliyon
This study is completed for the estimation of unknown population variance for the variable of mean and variance of interest. To accomplish this task, a new generalized class of robust kind of variance estimators proposed utilizing known descriptives of ...
Mohammed Ahmed Alomair, Syed Aflake Hussain Shah Gardazi   +1 more
doaj   +1 more source

A parametric study based on spectral fatigue analysis for 170k LNGC

International Journal of Naval Architecture and Ocean Engineering, 2011
The Spectral Fatigue Analysis is representative fatigue life assessment method for vessels. This Analysis is performed generally for the whole vessel and many assessment sites.
Tae-Yoon Park, Chang-Doo Jang, Yong-Suk Suh, Bong-Jae Kim   +3 more
doaj   +1 more source

Learning the optimal scale for GWAS through hierarchical SNP aggregation

BMC Bioinformatics, 2018
Background Genome-Wide Association Studies (GWAS) seek to identify causal genomic variants associated with rare human diseases. The classical statistical approach for detecting these variants is based on univariate hypothesis testing, with healthy ...
Florent Guinot, Marie Szafranski, Christophe Ambroise, Franck Samson   +3 more
doaj   +1 more source

New Modification of Ranked Set Sampling for Estimating Population Mean: Neutrosophic Median Ranked Set Sampling with an Application to Demographic Data

International Journal of Computational Intelligence Systems
The study addressed the limitations of classical statistical methods when dealing with ambiguous data, emphasizing the importance of adopting neutrosophic statistics as a more effective alternative.
Anamika Kumari, Rajesh Singh, Florentin Smarandache   +2 more
doaj   +1 more source

Gaussian Processes for Blazar Variability Studies [PDF]

Galaxies, 2017
This article shortly introduces Gaussian processes as a new approach for modelling time series in the field of blazar physics. In the second part of the paper, recent results from an application of GP modelling to the multi-wavelength light curves of the blazar PKS 1502+106 are discussed.
openaire   +4 more sources

Estimation of population variance under ranked set sampling method by using the ratio of supplementary information with study variable. [PDF]

Sci Rep, 2022
Alam R, Hanif M, Shahbaz SH, Shahbaz MQ.
europepmc   +1 more source