Results 41 to 50 of about 15,790,105 (302)

Automated Identification, Warning, and Visualization of Vortex-Induced Vibration

open access: yesSensors
Vortex-induced vibration (VIV) is a kind of abnormal vibration which needs to be automatically identified and warned in real time to guarantee the operational safety of a bridge.
Min He   +4 more
doaj   +1 more source

Understanding the Factors and Consequences of Gas Deflagration Accident in Metro Shield Tunnel: Site Investigation and Numerical Analysis

open access: yesBuildings, 2023
This study aims to investigate the factors and consequences of gas deflagration accidents in metro shield tunnels based on on-site investigation and numerical analysis.
Yi Shen   +4 more
doaj   +1 more source

Responses in large-scale structure [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2017
We introduce a rigorous definition of general power-spectrum responses as resummed vertices with two hard and $n$ soft momenta in cosmological perturbation theory. These responses measure the impact of long-wavelength perturbations on the local small-scale power spectrum.
Barreira, Alexandre, Schmidt, Fabian
openaire   +4 more sources

Integrated Sachs–Wolfe maps from the Gower Street wCDM simulations

open access: yesAstronomy & Astrophysics
Context. The late-time linear integrated Sachs-Wolfe (ISW) effect directly probes the dynamics of cosmic acceleration and the nature of dark energy.
Ghodsi Yengejeh Mina   +3 more
doaj   +1 more source

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

Large Scale Structure of the Universe [PDF]

open access: yesSymposium - International Astronomical Union, 1997
How is the universe organized on large scales? How did this structure evolve from the unknown initial conditions of a rather smooth early universe to the present time? The answers to these questions will shed light on the cosmology we live in, the amount, composition and distribution of matter in the universe, the initial spectrum of density ...
openaire   +3 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Comparison of Subgrid-scale Viscosity Models and Selective Filtering Strategy for Large-eddy Simulations [PDF]

open access: yes, 2013
Explicitly filtered large-eddy simulations (LES), combining high-accuracy schemes with the use of a selective filtering without adding an explicit subgrid-scales (SGS) model, are carried out for the Taylor-Green-vortex and the supersonic-boundary-layer ...
STEFANIN VOLPIANI, Pedro   +3 more
core   +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

Labyrinthine acoustic metamaterials with triangular self-similarity for low-frequency sound insulation at deep subwavelength dimensions

open access: yesResults in Physics, 2023
Labyrinthine acoustic metamaterials are good choices for realizing sound insulation, acoustic stealth, and acoustic lenses by virtue of their stable performance and rich modes.
Ya-jun Xin   +8 more
doaj   +1 more source

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