Results 21 to 30 of about 388 (138)
Ocular Microtremor in Oculomotor Palsy
Journal of Neuro-Ophthalmology, 1999 Ocular microtremor (OMT) is a high frequency tremor of the eyes present in all individuals. Recent reports suggest that OMT may be a useful indicator of brainstem function. However, the actual origin of ocular microtremor remains controversial. This study aims to provide evidence that OMT has a neurogenic origin.The OMT activity of five subjects with ...
C, Bolger +4 more
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Applied Sciences, 2023 Site velocity structure determination and stratigraphic division are important purposes of microtremor survey, and the precision of dispersion curves is an important factor affecting the accuracy of microtremor survey.
Xingang Mou +5 more
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Ocular microtremor laser speckle metrology [PDF]
SPIE Proceedings, 2009 Ocular Microtremor (OMT) is a continual, high frequency physiological tremor of the eye present in all subjects even when the eye is apparently at rest. OMT causes a peak to peak displacement of around 150nm-2500nm with a broadband frequency spectrum between 30Hz to 120Hz; with a peak at about 83Hz.
Al-Kalbani, Mohammed +5 more
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JGE, 2020 Bandung Regency is a highland area with a slope between 0 - 8%, 8-15% to above 45%. The district is located at an altitude of 768 m above sea level with the northern region higher than the south.
Andina Zuhaera +2 more
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Effect of Age on Ocular Microtremor Activity [PDF]
The Journals of Gerontology Series A: Biological Sciences and Medical Sciences, 2001 Ocular microtremor (OMT) is a high-frequency tremor of the eyes. It is present in all individuals and is related to brainstem activity. The OMT signal appears as an irregular oscillatory movement with intermittent burst-like components. The clinical interest in OMT has centered on its use in the assessment of the comatose patient, with broad agreement ...
C, Bolger +4 more
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Microtremor recording techniques
Bulletin of the New Zealand Society for Earthquake Engineering, 1973 For some years seismologists and engineers have been recording and measuring microtremors. In this paper a review of earlier micotremor investigations is presented and microtremor recording apparatus developed at Auckland University Engineering School is described. Two distinct methods of recording have been developed. One uses a conventional low-cost
I. M. Parton, P. W. Taylor
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Bulletin of the New Zealand Society for Earthquake Engineering, 2010 By recording microtremors simultaneously using arrays having two apertures, the effect of incoherent noise, which can act to depress coherency values, may be reduced, leading to better estimates of azimuthally-averaged coherency, and hence to improved shear-wave velocity profiles at sites.
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Multi‐Hazard Shaking‐Tsunami Fatality Risk Estimation for Coastal Communities
Earthquake Engineering &Structural Dynamics, EarlyView.ABSTRACT This study develops a multi‐hazard fatality risk model for a coastal community (Tofino) on Vancouver Island, Canada, subjected to earthquake‐tsunami threats from the Cascadia subduction megathrust events. The model incorporates variable population distributions and uncertain fatality rate models, in addition to other key model components, such
Katsuichiro Goda
wiley +1 more source
Earthquake Spectra, Volume 42, Issue 3, August 2026.The 1931 Hawke's Bay earthquake (∼MS 7.8) stands as one of New Zealand's most devastating, causing widespread liquefaction and damage across the city of Napier. However, Napier remains underrepresented in liquefaction hazard studies as compared to other regions in the country.
Aavash Ghimire +3 more
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Dizhi lixue xuebaoObjective The microtremor survey method is not limited by the spatiotemporal distribution of seismic sources and has become an effective method for observing the structure of shallow shear wave velocity.
ZHANG Qian +3 more
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