نتایج جستجو برای: gravity filed

تعداد نتایج: 66121  

2017
Ana Luiza Chieffi Rita De Cassia Barata Barradas Moisés Golbaum

BACKGROUND In Brazil, health is fundamental human right guaranteed by the Constitution of 1988, which created the Brazilian Universal Health System (Sistema Único de Saúde - SUS). The SUS provides medications for outpatient care via policy of pharmaceutical assistance (PA) programmes. Despite the advances in PA policies which include the improvement in access to medications, there has been a si...

Journal: :فیزیک زمین و فضا 0
خسرو اشرفی وحید اصفهانیان

in the present work properties of rossby and inertia gravity waves are investigated based on proper orthogonal decomposition (pod) functions. the pod functions are constructed using analytical, experimental or numerical data recorded as snapshots. the pod basis can be carried out to make a reduced order model by galerkin projection of governing equations onto these functions. in this paper, the...

Chegini , Nabiollah, Kiani Shahvandi, Mostafa , Nazari, Borzoo , Safari , Abdolreza ,

In this paper, a method is proposed for producing gravity acceleration at sea surface in the Persian Gulf. This method is based on the Geoid height from satellite altimetry, high resolution Geopotential models, and ellipsoidal splines. First, the definition of the ellipsoidal spline functions is presented in a Hilbert space, which is consisted of infinitely often differentiable functions. In or...

Journal: :British medical journal 1983
M Ryan

area display a striking variety. Ignoring many important differences among Western countries, Soviet orthodoxy reduces the variation to a crude dichotomy between "capitalist" and "socialist" political systems. Taking the United States as a paradigm, it indicts "capitalist" states as the home of malpractice suits and (so far as I know) completely disregards statutory schemes for review of compla...

2005
TOM WESTON

In fact, we suspect that much more is true: we conjecture that this relative density does not change after restriction to any set of primes defined by a Cebatorevstyle Frobenius condition; that is, we expect that the sets (0.1) yield sets of primes of positive density which are quite different from those sets determined by Galois theoretic conditions. See Conjecture 1.2 for a precise statement....

2008
Olindo Corradini Kazuya Koyama

We explore cosmology of intersecting braneworlds with induced gravity on the branes. We find the cosmological equations that control the evolution of a moving codimension one brane and a codimension two brane that sits at the intersection. We study the Friedmann equation at the intersection, finding new contributions from the six dimensional bulk. These higher dimensional contributions allow us...

2004
Yeuk-Kwan E. Cheung Mark Laidlaw Konstantin Savvidy

We present a new application of Boundary String Field Theory: calculating the induced-gravity action on a D-brane. Using a simple quadratic tachyon potential to model a D-brane fluctuating in the flat target space we derive the effective action in terms of the extrinsic curvature to all orders in α′. We identify both the Born-Infeld structure as well as the Einstein-Hilbert term at order α′. Th...

Journal: :فیزیک زمین و فضا 0
عبدالرحیم عسکری استادیار، دانشگاه تربیت معلم سبزوار وحید ابراهیم زاده اردستانی دانشیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران و قطب علمی مهندسی نقشه برداری و مقابله با سوانح طبیعی علیرضا آزموده اردلان استاد، گروه مهندسی نقشه برداری، قطب علمی مهندسی نقشه برداری در مقابله با سوانح طبیعی، پردیس دانشکده های فنی

measuring field gravity in sea due to the accelerations introduced via waves and movements to the gravity measuring systems has a low accuracy since according to einstein's equalent principle, gravimeter isn't able to separate the gravity acceleration from another acceleration. ship borne gravimetery observations by means of like oscillations and accelerations of the ship motion, and ...

2008
S. Calchi Novati S. Capozziello G. Lambiase

We discuss the weak-field limit of induced gravity and show that results directly depend on the coupling and self–interaction potential of the scalar field. A static spherically symmetric exact solution is found and its conformal properties are studied. As an application, it is shown that the light deflection angle and the microlensing quantities can be parametrized by the coupling of the theory.

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