نتایج جستجو برای: tidal constraints

تعداد نتایج: 208357  

Journal: :archives of anesthesiology and critical care 0
atabak najafi department of anesthesiology and critical care, sina hospital, tehran university of medical sciences, tehran, iran

variability of tidal volume and respiratory rate in normally breathing man has long been demonstrated [1]. however because of lack of knowledge and technology primary ventilators could only deliver a fixed tidal volume in a fixed rate the so called volume controlled ventilation (vcv). vcv was volume preset time triggered and cycled and there was no synchronization with patient’s breaths. at tha...

2007
Jennifer Meyer Jack Wisdom

The tidal evolution through several resonances involving Mimas, Enceladus, and/or Dione is studied numerically with an averaged resonance model. We find that, in the Enceladus–Dione 2:1 e-Enceladus type resonance, Enceladus evolves chaotically in the future for some values of k2/Q. Past evolution of the system is marked by temporary capture into the Enceladus–Dione 4:2 ee ′-mixed resonance. We ...

2003
K. Raahemifar

Traditionally, tidal prediction was carried out using the harmonic method, which is based on the identification of the harmonic constituents existing in the tidal record. Unfortunately, however, unless long tidal records are available at the tide gauges, some important tidal constituents may not be identified. This, in turn, deteriorates the accuracy of the tidal prediction. Additionally, tidal...

Journal: :journal of cardio-thoracic medicine 0
reza basiri pulmonologist, lung diseases research center, faculty of medicine, mashhad university of medical sciences, mashhad, iran ehsan kamali yazdi resident of internal medicine, department of internal medicine, ghaem hospital, mashhad university of medical sciences,mashhad, iran azita bizhani student research committee, mashhad university of medical sciences,mashhad, iran alireza sepehri shamloo internist,razavi hospital,mashhad,iran

introduction: capnography, is an easy, fast and practical method which its application in the diagnosis of pulmonary thromboendarterectomy (pte) has recently been studied. this study aimed to assess the diagnostic value of end-tidal co2 (etco2) and the alveolar dead space (avds) in the diagnosis of patients suspected to pte who have been referred to the emergency department. materials and metho...

2010
B. Ducarme Georges Lemaître

The most demanding applications are tidal gravity predictions. We examine if the nms precision can be reached. It correspond roughly to a 4.10 of the tidal range (TR) at mid latitude. High precision tidal prediction requires either tidal factors derived from tidal observations or modelled tidal factors based on the response of the Earth to tidal forces and on the ocean tides contribution. Both ...

2003
M. Bellazzini

Tidal radii of remote globular clusters (RGC > 35 kpc) are used to provide constraints of the mass profile of the Milky Way galaxy that are independent of kinematic data. The available data are consistent with the profile of an isothermal sphere with circular velocity Vc = 220 ± 40 km/s in the radial range 35 kpc 6 RGC 6 100 kpc, in good agreement with all recent estimates. The more robust cons...

2007
Shane L. Larson William A. Hiscock

Global topological defects produce nonzero stress-energy throughout spacetime, and as a result can have observable gravitational innuence on surrounding matter. Gravitational eeects of global strings are used to place bounds on their cosmic abundance. The minimum separation between global strings is estimated by considering the defects' contribution to the cosmolog-ical energy density. More rig...

2000
Kathryn V. Johnston

The launching of up to four astrometric missions in the next decade will enable us to make measurements of stars in tidal streamers from Galactic satellites of sufficient accuracy to place strong constraints on the mass distribution in the Milky Way. In this paper we simulate observations of debris populations in order to assess the required properties of any data set chosen to implement this e...

Masoud Montazeri Namin Mohammad Hossein Niksokhan, Zohreh Hashemi Aslani

Today, the widespread use of fossil fuels is caused many problems in the world, which include: Ozone depletion, the increase carbon dioxide in the atmosphere, growing recognition of climate change impacts and decreasing fossil fuel resources. These issues have led to an increased interest in the mass generation of electricity from renewable sources such tidal energy. The Khowr-e Musa Estuary, l...

Journal: :Monthly Notices of the Royal Astronomical Society 2023

Tidal dissipation plays an important role in the dynamical evolution of moons, planets, stars and compact remnants. The interesting complexity originates from interplay between internal structure external tidal forcing. Recent upcoming observing missions exoplanets Galaxy help to provide constraints on physics dissipation. It is timely develop new N-body codes, which allow for experimentation w...

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