Results 81 to 90 of about 63,975 (205)
Fiber-optic push-pull sensor systems [PDF]
, 1992 Fiber-optic push-pull sensors are those which exploit the intrinsically differential nature of an interferometer with concommitant benefits in common-mode rejection of undesired effects.
Brown, David A. +2 more
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DETERMINATION OF COORDINATES OF SEISMIC WAVE SOURCE BY AMPLITUDE METHOD OF PASSIVE LOCATION
Геодинамика и тектонофизика, 2015 The paper presents results of the mathematical synthesis of the method of passive location of a seismic wave source. The method employs measurements of regular attenuation of seismic oscillation amplitudes.
Vasily D. Syten’ky
doaj +1 more source
Groundwater Monitoring with Passive Seismic Interferometry
Journal of Water Resource and Protection, 2017 Passive seismic interferometry takes advantage of natural ambient seismic noise generated by the wind, the storms and the human activities (e.g. cars, trains and hereafter pumps) to recover the slight variations of the seismic wave velocity induced by changes in the groundwater level.
Voisin, Christophe +4 more
openaire +4 more sources
NEW SEISMIC SOURCE ZONE MODEL FOR PORTUGAL AND AZORES [PDF]
, 2010 The development of seismogenic source models is one of the first steps in seismic hazard assessment. In seismic hazard terminology, seismic source zones (SSZ) are polygons (or volumes) that delineate areas with homogeneous characteristics of seismicity ...
Arvidsson, R. +16 more
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High resolution bathymetric survey on the NW slope of Walvis Ridge, offshore Namibia [PDF]
, 2011 Expedition 17/1 of the German research vessel R/V MARIA S. MERIAN, carried out geophysical surveys and experiments between November and December 2010 in the area around Walvis Ridge, Southeast Atlantic Ocean.
Behrmann, Jan H. +2 more
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Monolithic folded pendulum accelerometers for seismic monitoring and active isolation systems [PDF]
, 2006 A new class of very low noise low-frequency force-balance accelerometers is presented. The device has been designed for advanced mirror isolation systems of interferometric gravitational wave detectors.
Bertolini, Alessandro +3 more
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Methodological procedure for applying geophysics to geotechnical studies in Luanda City, Angola
Minería y Geología, 2018 The use of the surface wave’s analysis in its passive and active variants was jointly assessed by the shallow seismic refraction. It allows determining dynamic parameters from the longitudinal and transverse velocities, obtained from seismic methods. For
Maria A. Pereira de Barros da Silva +3 more
doaj
Tuned liquid dampers simulation for earthquake response control of buildings [PDF]
, 2012 This paper is focused on the study of an earthquake protection system, the Tuned Liquid Damper (TLD), which can, if adequately designed, reduce earthquake demands on buildings. This positive effect is accomplished taking into account the oscillation of
Costa, A. Campos +6 more
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Rudarsko-geološko-naftni ZbornikThis study explores the characteristics of hydrocarbon presence in the Kendal subbasin, Central Java, using low-frequency passive seismic (LFPS) techniques as a direct hydrocarbon indicator.
Maman Rohaman +3 more
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Data User's Note: Apollo seismological investigations [PDF]
Seismological objectives and equipment used in the passive seismic, active seismic, lunar seismic profiling, and the lunar gravimeter experiments conducted during Apollo 11, 12, 14, 15, 16, and 17 missions are described.
Vostreys, R. W.
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