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The bursting of glass tubes by inner hydrostatic pressure
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Pressure-Regulating Mechanisms in the Inner Ear
ORL, 1978The perilymphatic pressure was studied in relation to pressure step variations in the external ear canal and in the middle ear. The transfer of pressure via the ossicular chain reached its limiting value at quite low pressures. When pressure steps were applied directly to the middle ear, there was almost a direct transfer of pressure for positive ...
O, Densert, B, Carlborg, J, Stagg
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Inner ear disorders due to pressure change
Clinical Otolaryngology and Allied Sciences, 1997We reviewed the records of 136 patients who had inner ear disorders including hearing loss and vertigo caused by pressure change. We divided them into three groups, according to the aetiology: group A, change in atmospheric pressure (diving, airplane travel, etc.); group B, rapid change in ear pressure in normal atmosphere (nose blowing, heavy lifting,
M, Kozuka +3 more
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Inner-shell chemistry under high pressure
Japanese Journal of Applied Physics, 2017Chemistry at ambient conditions has implicit boundaries rooted in the atomic shell structure: the inner-shell electrons and the unoccupied outer-shell orbitals do not contribute as the major component to chemical reactions and in chemical bonds. These general rules govern our understanding of chemical structures and reactions.
Maosheng Miao +4 more
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Water under inner pressure: A dielectric spectroscopy study
Physical Review E, 2014Water is the most studied substance on Earth. However, it is not completely understood why its structural and dynamical properties give rise to some anomalous behaviors. Some of them emerge when experiments at low temperatures and/or high pressures are performed.
Abril, Angulo-Sherman +1 more
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Cochlear Blood Flow under Increased Inner Ear Pressure
Annals of Otology, Rhinology & Laryngology, 1991The effect of elevation of inner ear pressure on cochlear blood flow in guinea pigs was studied with use of nonradioactive microspheres and a laser-Doppler flowmeter. Hydrostatic pressure was applied to the perilymph through a glass capillary tube inserted into the scala tympani of the basal turn.
T, Nakashima, T, Suzuki, N, Yanagita
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Modulation of inner ear pressure in experimental endolymphatic hydrops
Otolaryngology–Head and Neck Surgery, 1995Physiologic study of the guinea pig model of endolymphatic hydrops has been used to better understand the manifestations of Meniere's disease. Quantitative vestibular function testing demonstrates some changes in the hydrops subjects, especially if an additional stress such as postural inversion is imposed. Understanding the hydrodynamic changes on the
J C, Andrews, D, Strelioff
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Pressure freezing of the Earth's inner core
Physics of the Earth and Planetary Interiors, 1985Abstract In an earlier paper (Fearn and Loper), it was shown that secular cooling of a completely molten iron-poor core cannot account for the presence of the Earth's solid inner core. Here, we investigate an alternative; that at least part of the inner core formed very early in the history of the Earth, during the accretion/differentiation process ...
David R. Fearn, David E. Loper
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Inner pressure measurement of turbo molecular pump
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 2000The pressure of the gas including free molecular, transition, slip, and continuum flow inside the turbo booster pump is successfully measured in this study. This pump was developed through the cooperation of Kashiyama Industries Ltd. and Precision Instrument Development Center, with the goal of replacing the mechanical booster pump.
H.-P. Cheng +4 more
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Resonant Pressure Transmission To The Inner Ear
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society Volume 13: 1991, 2005Engineering analysis of pressures in fluid-filled ducts and cavities is applied to the vertebrate inner ear. The human endolymphatic duct and combined utricle and saccule exhibit resonance in the auditory frequency range. The analysis can be used to develop more complex models of pressure transmission in inner ear ducts and cavites.
R.L. Seaman, R.P. Barron
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