Results 51 to 60 of about 3,202,238 (369)

Homogeneous and Non-homogeneous Algorithms [PDF]

open access: yes, 2012
This (full) paper was accepted for publication in the 13th Panhellenic Conference on Informatics (PCI 2009), 10-12 September 2009, Corfu, Greece (8 pages)
openaire   +2 more sources

Cyclic homogeneous Riemannian manifolds [PDF]

open access: yes, 2014
In spin geometry, traceless cyclic homogeneous Riemannian manifolds equipped with a homogeneous spin structure can be viewed as the simplest manifolds after Riemannian symmetric spin spaces. In this paper, we give some characterizations and properties of
Gadea, P. M.   +2 more
core   +2 more sources

An ultrasound-promoted green approach for the synthesis of 3-(indol-3-yl)-3-hydroxyindolin-2-ones catalyzed by Fe(III) [PDF]

open access: yesJournal of the Serbian Chemical Society, 2011
Ferric chloride hexahydrate was used as a recyclable homogeneous catalyst in aqueous media for the synthesis of 3-(indol-3-yl)-3-hydroxyindolin-2-ones under sonication.
Tabatabaeian Khalil, Khorshidi Alireza
doaj   +1 more source

Regional Frequency Analysis of Maximum 24-Hour Precipitation in Arid Lands Using The L-Moments Approach (Case Study: Yazd Province) [PDF]

open access: yesمدیریت بیابان, 2020
Estimation of the maximum 24-hour precipitation is one of the important parameters in irrigation and drainage projects, design of hydraulic structures, and watershed management. This rainfall data is used to calculate short-term rainfall and design flood.
mojdeh mohammadi, Ali Talebi
doaj   +1 more source

The homogeneity conjecture [PDF]

open access: yesProceedings of the National Academy of Sciences, 1979
We show that, for any function f in which Kleene's O is computable, the ordering of Turning degrees (i.e., degrees of difficulty of computation of functions) is not isomorphic to the ordering of degrees of functions from which f is computable. This refutes a well-known
openaire   +4 more sources

Is the Universe homogeneous? [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011
The standard model of cosmology is based on the existence of homogeneous surfaces as the background arena for structure formation. Homogeneity underpins both general relativistic and modified gravity models and is central to the way in which we interpret observations of the cosmic microwave background (CMB) and the galaxy distribution.
openaire   +5 more sources

Homogeneous time-invariant systems [PDF]

open access: yes, 1999
It is well known that linear time-invariant (LTI) systems produce exponential outputs in response to exponential inputs. The purpose of this paper is to draw attention to the fact that the same result holds for the broader class of homogeneous time ...
Vaidyanathan, P. P.
core   +1 more source

Evaluating the performance of machine learning models for automatic diagnosis of patients with schizophrenia based on a single site dataset of 440 participants

open access: yesEuropean Psychiatry, 2022
Background Support vector machines (SVMs) based on brain-wise functional connectivity (FC) have been widely adopted for single-subject prediction of patients with schizophrenia, but most of them had small sample size.
Lung-Hao Lee   +9 more
doaj   +1 more source

Intersection graphs of graded ideals of graded rings

open access: yesAIMS Mathematics, 2021
In this article, we introduce and study the intersection graph of graded ideals of a graded ring. The intersection graph of G−graded ideals of a graded ring R, denoted by GrG(R), is undirected simple graph defined on the set of nontrivial graded left ...
Tariq Alraqad   +2 more
doaj   +1 more source

Homogeneity and h -homogeneity

open access: yesTopology and its Applications, 2013
Abstract The relations between zero-dimensional homogeneous spaces and h -homogeneous ones are investigated. We suggest an indication of h -homogeneity for a homogeneous zero-dimensional paracompact space and its modification for a topological group.
openaire   +3 more sources

Home - About - Disclaimer - Privacy