نتایج جستجو برای: horizontal to vertical spectral ratio
تعداد نتایج: 10735082 فیلتر نتایج به سال:
BACKGROUND AND OBJECTIVE To evaluate the repeatability of optic nerve head (ONH) measurements by spectral-domain optical coherence tomography. PATIENTS AND METHODS Three scans were acquired in 32 healthy subjects during one session. Using Cirrus HD-OCT (Carl Zeiss Meditec, Dublin, CA), the cup-to-disc ratio (CDR), disc area, rim area, cup volume, and horizontal and vertical CDRs were investig...
This work presents a novel empirical Ground Motion prediction Model (GMM) for vertical-to-horizontal (VH) response spectral amplitudes up to 10 s, peak ground acceleration and velocity shallow crustal earthquakes in Italy. Being calibrated on the most up-to-date strong motion dataset Italian (ITA18), model is consistent with ITA18 GMM horizontal motion. property makes useful probabilistic seism...
The VHF radar system at Aberystwyth (52:4 N, 4:1 E) has been used to make high-timeresolution, multi-beam observations of mesospheric summer echo layers. These show that the altitude and the sense of vertical movement of the layers can vary over time-scales of minutes and horizontal scales of kilometres. In general, the altitude pro®les of signal-tonoise ratio provide evidence of a bifurcated s...
Summary In this study, the seismic performance of hexagrid structures which are composed of horizontal and vertical hexagrid by using a transitional story, has been investigated. To this end, 10 models of 50-story hexagrid structures were designed. 9 models with horizontal hexagrid cells which transited to vertical cells using a transitional story, and a model of completely horizontal hexagrid ...
purpose: compaison of excyclotorsion induced by horizontal transposition of vertical rectus muscles versus vertical transposition of horizontal rectus muscles in rabbit eyes. methods: in this exprimental study, group 1 underwent full tendon nasal transposition of the superior rectus and full tendon temporal transposition of the inferior rectus (10 adult rabbits); group 2 underwent superior tran...
Bandung basin is surrounded by active volcanoes at the center of Western Java region. Soil type this area consists mostly volcanic alluvial, formed past activities. At location, we performed passive seismic surveys to reveal sedimentary characteristics using a triaxial seismometer, study properties which have potential implications on environmental aspects, such as natural disaster mitigation a...
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