Results 241 to 250 of about 10,888,121 (292)

Applications of critical point theory of distance functions to geometry

Geometriae Dedicata, 1991
The author uses the critical point theory of distance functions to obtain two results. First he considers a complete open manifold \(M^ n\) of nonnegative sectional curvature and rapidly increasing volume and gives a new proof for the following Theorem A [the reviewer and \textit{V. Toponogov}, Sib. Mat. Zh. 26, No.
Jyh-Yang Wu
exaly   +3 more sources

Applying the Critical Theory of Library Technology to Distance Library Services

Journal of Library and Information Services in Distance Learning, 2010
The re-envisioning of libraries as information leaders in higher education requires an examination of the decisions made in the acquisition and adoption of library technology. The Critical Theory of Library Technology offers a framework for viewing technology decisions through a social, economic and political perspective.
exaly   +2 more sources

A Critical Analysis of Transactional Distance Theory

Quarterly Review of Distance Education, 2005
This investigation reviews published empirical studies that attempted to support or to validate transactional distance theory (Moore, 1993). It was found that either data only partially supported the theory or, that if they apparently did so, the studies lacked reliability, construct validity, or both.
Paul Gorsky, Avner Caspi
openaire   +1 more source

Implementation of the Theory of Critical Distances using mesh control

Theoretical and Applied Fracture Mechanics, 2017
Abstract The Theory of Critical Distances (TCD) is a method for predicting fatigue and fracture at stress concentration features. It is extensively used in the design of engineering components, being a relatively simple approach based on post processing of finite element analysis (FEA).
VARGIU, FILIPPO   +4 more
openaire   +1 more source

Application of the Theory of Critical Distance to Fretting Fatigue

2008
Fretting fatigue occurs at the contact interface of mechanical joints which are designed to be at rest but that nevertheless experience some sort of relative movement due to vibration. This work aims to develop a crack initiation threshold condition for fretting fatigue.
ArauÌ€jo A.   +3 more
openaire   +2 more sources

Extending the theory of critical distances to quasi-brittle fracture

Theoretical and Applied Fracture Mechanics, 2021
Abstract The results of theoretical and experimental studies of brittle and quasi-brittle fracture of plaster plates containing a circular hole and subjected to non-uniformly distributed compression are presented. This paper summarizes the results, partially published by the author earlier.
openaire   +1 more source

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