it helps reduce the time I spend contending with traffic, plus it gives me a convenient source of cardio ... by seismic processing and tomographic inversion. ... The graduate level research enables me to deal with seismic waves in various fields such as reflection-refraction
survey)와 수동탐사법(passive seismic survey)이 있으며 탄성파속도가 낮음은 높은 온도를 암시한다. ⑤ 방사능탐사 지하 심부 암체 내의 방사성원소 붕괴로 인한 ... 지표수가 지질구조대를 따라 지하 심부로 들어가서 증온되어 다시 구조대를 따라 지표로 나온다. heating source는 비교적 신기의 화성암체(백악기 또는 제3기) 또는 제4기의 ... 다른 탐사와 병행하여 실시 ③ 자력탐사 (+)이상치는 신기 관입암 및 화산암과 관련되는 수가 있으며 역시 다른 탐사와 병행하여 실시 ④ 탄성파탐사 능동탐사법(active seismic
information, which are important inputs for seismic design. ... Korea is located in low-to moderate seismic region, so that strong motion records are very limited. ... source model considering domestic geological parameters (magnitude, hypocentral distance, distancefrequency
seismic source and attenuation characteristics with more confidence. ... Observed ground motions are composed of three factors such as, seismic source, attenuation, and site ... The site effect is also necessary when estimating not only seismic hazard in seismic design engineering
In this study, a point source model is constructed to accurately simulate ground motions rec orded at ... In low to moderate seismic regions, there are limited earthquake ground motion data recorded from past ... different stations located on different soil conditions during the Gyeongju earthquake.
sources of nonlinearity. ... frames subjected to seismic loading is addressed. ... The seismic loading is applied in the time domain for realistic representation.
under seismic ground excitation in all codes. ... In some current procedures, ground motions from different sources have been scaled by their peak
ground ... ratio. the required yield strength for seismic design can be estimated for a certain earth
quake event
same line to obtain the 5 m spacing receiver line parallel to the 5 m spacing source line. 19 4. ... . b) The configuration of receiver and source lines. 10 m spacing receiver line was moved 5 m along the ... Proper selection of the first input seismic traces is crucial to be successful in auto-picking.
거리2배일경at seismic source 무한히 넓은 평면상에 무수한 점음원이 존재하는 상태. ... 또한 무수한 점음원이 직선을 이룰 때, 이것을 선음원(Line source)이라고 한다. ... 점음원 선음원 면음원 이미지 출처 Copyright 비주얼사이언스. www.VSO.Kr 1-1 point sound source 점 음원은 하나의 점에 집중되어있는 소리의 근원이며,
In addition, experiments in this study revealed that a small handy hammer can be used as a seismic source ... Choosing a seismic source and geophone type including a coupling method can be the most important factor ... from several sources and geophone conditions.
Other source parameters were estimated from the mean corner frequency and seismic moment. ... The static stress drops, determined in this study, tend to be independent of seismic moment for events ... In general, the source parameters estimated at different stations for an earthquake show different values
based on all Korean earthquake data of MM Intensity equal to or greater than V is evaluated by point source ... Dynasty during which seismic data appear to be rather complete. ... The seismic risk estimated from all data turned out to be lower than that from the data since the Choseon
Numerous strong ground motions based on the seismic source characteristics for the earthquakes occurring ... source and attenuation characteristics were selected. ... Through the extensive review of other study outcomes, the input data for the simulation such as seismic
In Antarctica, the seismic waves from the earthquake sped up the Whillans Ice Strea2 ... The speed of tsunami waves depends on ocean depth rather than the distance from the source of the wave ... The ship started its journey in Hokkaido.
(source: http://koreajoongangdaily.joins.com sep. 23, 2016) ... The government kept assuring that the Yangsan fault was safe from seismic activity every time it pitched ... from natural disasters. a government report has named the yangsan fault as the source of the recent
with large amplitudes using small seismic sources. ... when conducting a 2-D shallow seismic survey. ... In this research, we have used hammer as an impulsive source and compared the signal powers generated
A point source model, the doubly truncated Gutenberg-Richter relationship, and earthquake intensity attenuation ... formula was applied to simulate seismic events. ... seismic effect on EPTS of korea has to be considered.
It is necessary to develop the rational seismic source map and the attenuation equations for the development ... design and seismic safety evaluation of structures. ... of the probabilistic seismic hazard.
as the fault mechanism, the seismic wave propagation from source to site, and the amplification characteristics ... ground motions for a seismic response analysis of building structures. ... of the soil, it is difficult to properly select the input ground motions for seismic response analysis
water level, spring-loaded source which impact laterally a subsurface ground in vertical bore-hole was ... In this study, cross-hole seismic testing technique which is known as the most reliable seismic method ... and seismic bedrock were efficiently determined from the laterally impacted cross-hole seismic tests