Results 21 to 30 of about 2,548,941 (205)

Application of cross-oscillator, cross-floor response spectrum method of multiply supported systems, considering the correlations between three directional earthquake excitations

open access: yesNihon Kikai Gakkai ronbunshu, 2017
Response spectrum analysis method is widely used for the seismic design of equipment and piping systems of nuclear power plant, or other industrial facilities. Some of the equipment and piping systems are multiply supported with plural floors, or several
Koichi TAI, Kunihiko SATO, Eiichi MAEDA
doaj   +1 more source

Influence of shear walls on the structural behavior of a multi-storey concrete building according to Brazilian Technical Code ABNT NBR 15421:2006

open access: yesRevista IBRACON de Estruturas e Materiais, 2023
: This paper presents a comparative study of the influence of shear walls on the behavior of a multi-storey concrete building when subjected to seismic actions. Two structures with different earthquake-resistant systems were evaluated. One is composed of
Carlos Alexandre Seruti   +3 more
doaj   +1 more source

Spectrum-to-spectrum methods for the generation of elastic floor acceleration spectra [PDF]

open access: yes, 2017
In seismic codes, the acceleration demand of nonstructural components is commonly expressed in terms of floor response spectra and estimated by means of simple predictive equations.
FRANCHIN, Paolo   +2 more
core   +1 more source

Diffusion-induced dephasing in nanomechanical resonators [PDF]

open access: yes, 2010
We study resonant response of an underdamped nanomechanical resonator with fluctuating frequency. The fluctuations are due to diffusion of molecules or microparticles along the resonator.
A. Isacsson   +8 more
core   +2 more sources

Seismic Ground Response Estimation Based on Convolutional Neural Networks (CNN)

open access: yesApplied Sciences, 2021
One of the purposes of earthquake engineering is to mitigate the damages in buildings and infrastructures and, therefore, reduce the impact of earthquakes on society. Seismic ground response analysis refers to the process of evaluating the ground surface
Seokgyeong Hong   +3 more
doaj   +1 more source

Peaks and Troughs in Helioseismology: The Power Spectrum of Solar Oscillations [PDF]

open access: yes, 1998
I present a matched-wave asymptotic analysis of the driving of solar oscillations by a general localised source. The analysis provides a simple mathematical description of the asymmetric peaks in the power spectrum in terms of the relative locations of ...
C. S. Rosenthal   +6 more
core   +4 more sources

The Formal Underpinnings of the Response Functions used in X-Ray Spectral Analysis [PDF]

open access: yes, 2000
This work provides an in-depth mathematical description of the response functions that are used for spatial and spectral analysis of X-ray data. The use of such functions is well-known to anyone familiar with the analysis of X-ray data where they may be ...
Chandra X-Ray Center   +2 more
core   +4 more sources

SSA of biomedical signals: A linear invariant systems approach [PDF]

open access: yes, 2010
Singular spectrum analysis (SSA) is considered from a linear invariant systems perspective. In this terminology, the extracted components are considered as outputs of a linear invariant system which corresponds to finite impulse response (FIR) filters ...
Figueiredo, Nuno   +5 more
core   +2 more sources

Spectral Representation-Based Multidimensional Nonstationary Ground Motion Model for Seismic Reliability Analysis of Frame Structures

open access: yesShock and Vibration, 2021
A framework for a multidimensional nonstationary ground motion model based on spectral representation theory is proposed in this paper. The multidimensional nonstationary ground motion model is built from a local target to fit the multidimensional ...
Lawali Moussa Laminou, Xinghua Chen
doaj   +1 more source

The Influence of Vertical Ground Motion on the Design of Common R/C Frames

open access: yesApplied Sciences
In this article, the response of reinforced concrete frames concurrently subjected to both horizontal and vertical seismic motions is assessed. The article is not limited to the variation in response quantities but aims to identify which specific design ...
Grigorios Manoukas, Vasilios Tsiggelis
doaj   +1 more source

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