Results 21 to 30 of about 52,412 (170)

Vertical Seismic Isolation Device for Three-Dimensional Seismic Isolation of Nuclear Power Plant Equipment—Case Study

open access: yesApplied Sciences, 2021
The purpose of this study was to develop a vertical seismic isolation device essential for the three-dimensional seismic isolation design of nuclear power plant equipment.
Gyeong-Hoi Koo   +4 more
doaj   +1 more source

Passive and active seismic isolation for gravitational radiation detectors and other instruments [PDF]

open access: yes, 1982
Some new passive and active methods for reducing the effects of seismic disturbances on suspended masses are described, with special reference to gravitational radiation detectors in which differential horizontal motions of two or more suspended test ...
Drever, R. W. P.   +3 more
core   +1 more source

IMPROVE THE EFFICIENCY OF SEISMIC WITH RUBBER MOUNTS ELEMENTS COMBINED WITH DRY FRICTION

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
The goal is to increase effectiveness of seismic isolation of buildings with flexible rubber-seismic isolation bearings (RSIB). In order to reduce the maximum displacement RSIB installed in the basement of frame buildings in seismic isolation system ...
A. D. Abakarov, Kh. M. Omarov
doaj   +1 more source

Machine learning for gravitational-wave detection: surrogate Wiener filtering for the prediction and optimized cancellation of Newtonian noise at Virgo

open access: yes, 2020
The cancellation of noise from terrestrial gravity fluctuations, also known as Newtonian noise (NN), in gravitational-wave detectors is a formidable challenge. Gravity fluctuations result from density perturbations associated with environmental fields, e.
Badaracco, F   +11 more
core   +1 more source

Sensitivity Studies for Third-Generation Gravitational Wave Observatories [PDF]

open access: yes, 2010
Advanced gravitational wave detectors, currently under construction, are expected to directly observe gravitational wave signals of astrophysical origin.
Abernathy, M.   +138 more
core   +3 more sources

Seismic isolation system using rhombus link and leaf spring (Vertical isolation)

open access: yesNihon Kikai Gakkai ronbunshu, 2020
This paper deals with seismic isolation system with nonlinear characteristics for vertical ground motion. The vertical seismic isolation system consists of a rhombus shaped link mechanism, a tension coil spring, and a leaf spring.
Naoki IIJIMA   +2 more
doaj   +1 more source

Huddle test measurement of a near Johnson noise limited geophone [PDF]

open access: yes, 2017
In this paper, the sensor noise of two geophone configurations (L-22D and L-4C geophones from Sercel with custom built amplifiers) was measured by performing two huddle tests.
Balik G.   +17 more
core   +3 more sources

Wiener filtering with a seismic underground array at the Sanford Underground Research Facility [PDF]

open access: yes, 2014
A seismic array has been deployed at the Sanford Underground Research Facility in the former Homestake mine, South Dakota, to study the underground seismic environment.
Christensen, Nelson   +6 more
core   +2 more sources

A Review of Seismic Isolation for Buildings: Historical Development and Research Needs

open access: yesBuildings, 2012
Seismic isolation is a technique that has been used around the world to protect building structures, nonstructural components and content from the damaging effects of earthquake ground shaking.
Keri L. Ryan, Gordon P. Warn
doaj   +1 more source

Key technologies research on of soil-structure interaction base story isolated structure response in 3D seismic zone

open access: yesFrontiers in Earth Science, 2023
The development of karst in Karst area leads to poor stability of stratum. If earthquake occurs, the area will produce destructive disaster. In order to improve the stability capacity of the grassroots in the region, this study investigates the seismic ...
Jingran Xu   +8 more
doaj   +1 more source

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