Results 51 to 60 of about 3,864,284 (197)

Conclusive evidence of magnetic rotational band in 57Fe: Extending the shears mechanism to the fp shell orbital

open access: yesPhysics Letters B
A Magnetic Rotational (MR) band in 57Fe nucleus has been newly identified and established from the decreasing behaviour of the experimental electric dipole transition probabilities, B(M1), determined from the measured lifetimes of the states.
S. Basu   +34 more
doaj   +1 more source

Optimisation of variable helix end milling tools [PDF]

open access: yes, 2010
High productivity, low cost and high profits are important issues in aerospace, automotive and tool/die metal manufacturing industries. Machining processes are widely used in manufacturing operations for metal manufacturing rather than casting and ...
Yusoff, Ahmad
core  

Numerical solution of the two-dimensional Helmholtz equation with variable coefficients by the radial integration boundary integral and integro-differential equation methods [PDF]

open access: yes, 2012
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2012 Taylor & Francis.This paper presents new formulations of the boundary–domain integral equation (BDIE) and the boundary–domain integro-
Al-Jawary, MA, Wrobel, LC
core   +1 more source

Study on a Novel Variable-Frequency Rolling Pendulum Bearing

open access: yesBuildings, 2022
Seismic isolation is a technique that has been widely used around the world to decouple the superstructure from the ground motions during earthquakes.
Hui Pang, Wen Xu, Junwu Dai, Tao Jiang
doaj   +1 more source

SEARCH FOR VARIABLE STARS AND THEIR STUDY

open access: yesOdessa 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   +2 more
doaj   +1 more source

Danger: High Power! – Exploring the Statistical Properties of a Test for Random Forest Variable Importance [PDF]

open access: yes, 2008
Random forests have become a widely-used predictive model in many scientific disciplines within the past few years. Additionally, they are increasingly popular for assessing variable importance, e.g., in genetics and bioinformatics.
Zeileis, Achim   +3 more
core   +1 more source

Variable Selection for Generalized Linear Mixed Models by L1-Penalized Estimation [PDF]

open access: yes, 2011
Generalized linear mixed models are a widely used tool for modeling longitudinal data. However, their use is typically restricted to few covariates, because the presence of many predictors yields unstable estimates.
Groll, Andreas
core   +3 more sources

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

open access: yesHeliyon
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   +3 more
doaj   +1 more source

Variable selection and updating in model-based discriminant analysis for high dimensional data with food authenticity applications [PDF]

open access: yes, 2010
Food authenticity studies are concerned with determining if food samples have been correctly labelled or not. Discriminant analysis methods are an integral part of the methodology for food authentication.
Nema Dean   +8 more
core   +1 more source

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

open access: yesInternational 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   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy