Results 41 to 50 of about 10,005,809 (327)

Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis

open access: yesShock and Vibration, 2015
The cuplock scaffolds are widely used as a temporary facility in the bridge and other constructions. The looseness of cuplock scaffold connection plays a significant role in the stability of the structure. Contemporary structural health monitoring method
Liuyu Zhang, Chenyu Wang, Gangbing Song
doaj   +1 more source

Structural optimization of the large structure with stiffeners by hybrid genetic algorithms

open access: yesNihon Kikai Gakkai ronbunshu, 2015
An optimization technique using the hybrid GA for large structures in which a lot of stiffeners are attached is proposed in this paper. The object function is the mass of structure and the design variables are the number and the position of stiffeners ...
Ryota NONAMI   +2 more
doaj   +1 more source

Analysis of the Alignment of Non-Random Patterns of Spin Directions in Populations of Spiral Galaxies

open access: yesParticles, 2021
Observations of non-random distribution of galaxies with opposite spin directions have recently attracted considerable attention. Here, a method for identifying cosine-dependence in a dataset of galaxies annotated by their spin directions is described in
Lior Shamir
doaj   +1 more source

Structure Formation in Large Theories

open access: yes, 2015
Structuring theories is one of the main approaches to reduce the combinatorial explosion associated with reasoning and exploring large theories. In the past we developed the notion of development graphs as a means to represent and maintain structured ...
Autexier, Serge, Hutter, Dieter
core   +1 more source

Cosmic string loops and large-scale structure [PDF]

open access: yes, 1998
We investigate the contribution made by small loops from a cosmic string network as seeds for large-scale structure formation. We show that cosmic string loops are highly correlated with the long-string network on large scales and therefore contribute ...
A. Albrecht   +26 more
core   +3 more sources

The large-scale structure of homogeneous turbulence [PDF]

open access: yes, 1967
A field of homogeneous turbulence generated at an initial instant by a distribution of random impulsive forces is considered. The statistical properties of the forces are assumed to be such that the integral moments of the cumulants of the force system ...
Saffman, P. G.
core   +1 more source

Structural FECM: Cointegration in large‐scale structural FAVAR models [PDF]

open access: yesJournal of Applied Econometrics, 2017
SummaryStarting from the dynamic factor model for nonstationary data we derive the factor‐augmented error correction model (FECM) and its moving‐average representation. The latter is used for the identification of structural shocks and their propagation mechanisms. We show how to implement classical identification schemes based on long‐run restrictions
Banerjee, Anindya   +2 more
openaire   +4 more sources

Nonlinear deformation prediction of tunnel surrounding rock with computational intelligence approaches

open access: yesGeomatics, Natural Hazards & Risk, 2020
Deformation of surrounding rock is widely monitored to discover surrounding rock behaviors for purpose of event forecasting. This article aims to present a comparative study on surrounding rock nonlinear deformation prediction using computational ...
Peng He, Fei Xu, Shang-qu Sun
doaj   +1 more source

Kurtosis and large-scale structure

open access: yesThe Astrophysical Journal, 1994
11 pages in Latex (plus 1 figure), SISSA 127/93 ...
Catelan, Paolo, Moscardini, Lauro
openaire   +2 more sources

Structure of large random hypergraphs

open access: yes, 2004
The theme of this paper is the derivation of analytic formulae for certain large combinatorial structures. The formulae are obtained via fluid limits of pure jump type Markov processes, established under simple conditions on the Laplace transforms of ...
Darling, R. W. R., Norris, J. R.
core   +4 more sources

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