Results 31 to 40 of about 2,107,464 (275)

Reaching the minimum ideal in a finite semigroup [PDF]

open access: yes, 2015
We introduce the depth parameters of a finite semigroup, which measure how hard it is to produce an element in the minimum ideal when we consider generating sets satisfying some minimality conditions.
Karimi, Nasim
core   +2 more sources

An extension of Saalschütz's summation theorem for the series r+3Fr+2 [PDF]

open access: yes, 2013
The aim in this research note is to provide an extension of Saalschütz's summation theorem for the series r+3Fr+2(1) when r pairs of numeratorial and denominatorial parameters differ by positive integers.
Kim, Yong S.   +2 more
core   +2 more sources

Twisted Black p-Brane Solutions in String Theory [PDF]

open access: yes, 1991
It has been shown that given a classical background in string theory which is independent of $d$ of the space-time coordinates, we can generate other classical backgrounds by $O(d)\otimes O(d)$ transformation on the solution.
Sen, Ashoke
core   +2 more sources

A comparison of transformation models between geodetic reference frames: case study in Illizi region (Algeria)

open access: yesGeodesy and Cartography
The Illizi region is an important petroleum zone in Algeria, where various seismic surveys have been conducted. The merging of adjacent surveys is not possible due to incompatible data linked to the geodetic networks.
Mahdi Haddad, Mounia Gahlouz
doaj   +1 more source

Effects of Heating Rate and Strain Rate on Phase Transformation in Micro-Grinding [PDF]

open access: yesEPJ Web of Conferences, 2019
The phase transformation in the grinding process could have a significant impact on the processing performance of the products. Although grinding process can lead to high heating and strain rates, the current studies on the phase transformation typically
Sun Gaoxiang, Ding Zishan
doaj   +1 more source

Multi-parameter singular Radon transforms [PDF]

open access: yesMathematical Research Letters, 2011
The purpose of this announcement is to describe a development given in a series of forthcoming papers by the authors that concern operators of the form \[ f\mapsto (x) \int f( _t(x)) K(t)\: dt, \] where $ _t(x)= (t,x)$ is a $C^\infty$ function defined on a neighborhood of the origin in $(t,x)\in \mathbb{R}^N\times \mathbb{R}^n$ satisfying $ _0(x)\
Stein, Elias M., Street, Brian
openaire   +2 more sources

A Proposal of a Renormalization Group Transformation for Lattice Field Theories [PDF]

open access: yes, 1994
We propose a new Real Space Renormalization Group transformation useful for Monte Carlo calculations in theories with global or local symmetries. From relaxation arguments we define the block-spin transformation with two tunable free parameters, adapted ...
Fernandez, L. A.   +3 more
core   +3 more sources

Designing for a Response Transformation Parameter

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1997
Summary We investigate D-optimum designs for experiments in which a linear model holds after an unknown power transformation of the univariate response variable. This is a departure from standard D-optimal design in which an appropriate scale for the response is assumed known before data collection.
Atkinson, Anthony C., Cook, R. Dennis
openaire   +2 more sources

Change of Grain Size Parameters of Sediments as a Result of Wind Activity. Barchans Jarangiyn Els in Gobi, Mongolia

open access: yesMiscellanea Geographica: Regional Studies on Development, 2004
Research conducted on the Jarangiyn els field on the Gobi desert in Mongolia took place during the transformation of barchans resulting from the changes in wind direction.
Potocki Mariusz, Angiel Piotr
doaj   +1 more source

Application of simulated annealing algorithm for 3D coordinate transformation problem solution

open access: yesOpen Geosciences, 2020
Transformation of spatial coordinates (3D) is a common computational task in photogrammetry, engineering geodesy, geographical information systems or computer vision.
Odziemczyk Waldemar
doaj   +1 more source

Home - About - Disclaimer - Privacy