Results 31 to 40 of about 1,017,506 (258)

The robability-time model functioning of the hierarchical system management of heterogeneous territorial placed objects

open access: yesИзвестия высших учебных заведений. Поволжский регион:Технические науки, 2021
Background. At the current level of hierarchical systems’ development, the direction of the network method for forming control objects is actively developing.
A.Yu. Kozlov, A.I. Sidorov
doaj   +1 more source

Broken Local Symmetry in Paraelectric BaTiO3 Proved by Second Harmonic Generation [PDF]

open access: yes, 2012
Precursor dynamics of a cubic to tetragonal ferroelectric phase transition in BaTiO3 is studied by the accurate measurement of the second harmonic generation (SHG) integral intensities.
Kojima S.   +7 more
core   +1 more source

The lifetime forecasting of machine elements by fatigue strength criterion

open access: yesDiagnostyka, 2021
The method for assessing the lifetime of structural elements by the criterion of fatigue strength is improved. It includes tests of laboratory material samples, the positions of the statistical theory of similarity of fatigue failure, calculation of the ...
Yuriy Khomyak   +4 more
doaj   +1 more source

On the interpretation of Stratonovich calculus

open access: yesNew Journal of Physics, 2014
The Itô–Stratonovich dilemma is revisited from the perspective of the interpretation of Stratonovich calculus using shot noise. Over the long time scales of the displacement of an observable, the principal issue is how to deal with finite/zero ...
W Moon, J S Wettlaufer
doaj   +1 more source

The Developmental Basis of Adult Arrhythmia: Atrial Fibrillation as a paradigm

open access: yesFrontiers in Physiology, 2013
Normal cardiac rhythm is one of the most fundamental physiologic phenomena, emerging early in the establishment of the vertebrate body plan. The developmental pathways underlying the patterning and maintenance of stable cardiac electrophysiology must be ...
Sunil eKapur, Calum A. MacRae
doaj   +1 more source

Effective String Theory of Vortices and Regge Trajectories [PDF]

open access: yes, 2000
Starting from a field theory containing classical vortex solutions, we obtain an effective string theory of these vortices as a path integral over the two transverse degrees of freedom of the string.
A. Polyakov   +34 more
core   +4 more sources

The Decision Making Process based on the Attention, particularly on Team Sports to Avoid Perceptual Functional and Biomechanical Deficits for a Quality Sport Performance

open access: yesFormazione & Insegnamento, 2019
The foundamental mistake in the normal evolution of the motor learning process and sports’ movements and consequently on its related performance is mainly physiological.
Riccardo Izzo   +3 more
doaj   +1 more source

On the Galois module structure over CM-fields [PDF]

open access: yes, 1992
In this paper we make a contribution to the problem of the existence of a normal integral basis. Our main result is that unramified realizations of a given finite abelian group Δ as a Galois group Gal (N/K) of an extension N of a given CM-field K are ...
Brinkhuis, J. (Jan)
core   +2 more sources

Effects of Outlets on Cracking Risk and Integral Stability of Super-High Arch Dams

open access: yesThe Scientific World Journal, 2014
In this paper, case study on outlet cracking is first conducted for the Goupitan and Xiaowan arch dams. A nonlinear FEM method is then implemented to study effects of the outlets on integral stability of the Xiluodu arch dam under two loading conditions,
Peng Lin   +3 more
doaj   +1 more source

Estimation of the mechanical properties of the eye through the study of its vibrational modes. [PDF]

open access: yesPLoS ONE, 2017
Measuring the eye's mechanical properties in vivo and with minimally invasive techniques can be the key for individualized solutions to a number of eye pathologies.
M Á Aloy   +6 more
doaj   +1 more source

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