نتایج جستجو برای: champ satellite
تعداد نتایج: 82183 فیلتر نتایج به سال:
Abstract The dynamics of ionospheric troughs that developed during a great geomagnetic storm on 11–13 April 2001 are studied using measurements electron density obtained by the CHAMP satellite at an altitude 410–465 km. Subauroral, mid-latitude and low-latitude were observed nighttime, sometimes simultaneously. subauroral trough is usually defined as main trough, whereas associated with magneto...
Background: The PRECEDE-PROCEED Model is an effective and adaptable program planning tool that has been widely used in the design, implementation and evaluation of health promotion programs. Objective: To retrospectively apply the constructs of the PRECEDE-PROCEED Model to a community-based youth fitness and nutrition summer camp program (Champ Camp) and to identify and describe how the program...
We study the non-parametric covariance estimation of a stationary Gaussian field X observed on a lattice. To tackle this issue, we have introduced a model selection procedure in a previous paper [Ver09]. This procedure amounts to selecting a neighborhood m̂ by a penalization method and estimating the covariance of X in the space of Gaussian Markov random fields (GMRFs) with neighborhood m̂. Such ...
فراهم آمدن امکان اندازه گیری موقعیت سه بعدی بوسیله ی gps، این سیستم را به یکی از کارآمدترین ابزار تعیین مدار، ماهواره های زمین مدار ارتفاع پایین تبدیل نموده است. در این پژوهش، ابتدا مقدمه ای بر انواع روش های تعیین مدار ارائه می گردد و سپس تعیین بهترین و دقیق ترین روش به عنوان پرکاربردترین روش ها، مورد بررسی قرار می گیرد. و در مباحث اولیه پژوهش معادلات مشاهدات، ترکیبات خطی و مشاهدات تفاضلی بیان ...
The results presented in this thesis have in part already been published in Refs. [1, 2, 3, 4, 5] listed overleaf (page v). We consider physics beyond the Standard Model which implies the existence a of long-lived electromagnetically charged massive particle species (CHAMP) which we denote by X ±. We discuss in detail the unique sensitivity the early Universe exhibits on the mere presence and o...
S U M M A R Y Accurate models of the magnetospheric field during magnetically quiet times are essential for high-resolution mapping of core field dynamics, mantle and ocean induction, crustal fields and ionospheric currents. Satellite data sampled at low-Earth orbit allow for a separate determination of the external contributions from currents in the magnetosphere. We have used Ørsted and CHAMP...
Despite clear and consistent clinical-trial evidence that secondary-prevention medical therapies reduce mortality in patients with established coronary artery disease, these therapies are underutilized in patients receiving conventional care. To address this issue, a Cardiac Hospitalization Atherosclerosis Management Program (CHAMP) focused on initiation of aspirin, cholesterol-lowering medicat...
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