نتایج جستجو برای: champ satellite

تعداد نتایج: 82183  

ژورنال: :فیزیک زمین و فضا 2011
عبدالرضا صفری محمدعلی شریفی بابک امجدی پرور

ساختار ll-sst (low-low satellite-to-satellite tracking) اولین بار با پرتاب ماهواره grace (gravity recovery and climate experiment) در 2002 اجرایی شد. برای رسیدن به دقت و حساسیت بیشتر در بازیابی میدان جاذبه زمین در مقیاس جهانی می توان ساختار ll-sst را با ساختار hl-sst (high-low satellite-to-satellite tracking)که قبلاً در ماهواره champ (challenging minisatellite payload) استفاده شده ترکیب کرد. اخت...

2004
H. Lühr S. Maus M. Rother

[1] New observations obtained by the satellite CHAMP reveal a detailed picture of the noon-time equatorial electrojet (EEJ). The low orbit of CHAMP and its high-precision magnetometers reveal the spatial structure of the EEJ with unprecedented accuracy. Data from more than two and a half years have been used to investigate average features and also the global characteristics of the EEJ. Rather ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Zhi-Ping Liu Eric N Olson

Adult cardiomyocytes are irreversibly postmitotic but respond to a variety of stimuli by hypertrophic growth, which is associated with an increase in cell size and protein content, organization of sarcomeres, and activation of a fetal gene program. Recently, we described a novel cardiac helicase activated by MEF2 protein (CHAMP), which is expressed specifically in the heart throughout prenatal ...

2017
William H. Weir Scott Emmons Ryan Gibson Dane Taylor Peter J. Mucha

We introduce the Convex Hull of Admissible Modularity Partitions (CHAMP) algorithm to prune and prioritize different network community structures identified across multiple runs of possibly various computational heuristics. Given a set of partitions, CHAMP identifies the domain of modularity optimization for each partition-i.e., the parameter-space domain where it has the largest modularity rel...

Journal: :Journal of rehabilitation research and development 2013
Robert S Gailey Ignacio A Gaunaurd Michele A Raya Kathryn E Roach Alison A Linberg Stuart M Campbell Daniel M Jayne Charles Scoville

The opportunity for wounded servicemembers (SMs) to return to high-level activity and return to duty has improved with advances in surgery, rehabilitation, and prosthetic technology. As a result, there is now a need for a high-level mobility outcome measure to assess progress toward high-level mobility during and after rehabilitation. The purpose of this study was to develop and determine the r...

2003
P. Marinkovic

As soon as a space gravity spectroscopy was successfully performed, for instance by means of semicontinuous ephemeris of LEO GPS tracked satellites, the problem of data validation appeared. It is for this purpose that a stochastic model for the homogeneous and isotropic analysis of measurements, obtained as “directly” measured values in LEO satellite missions (CHAMP, GRACE, GOCE), is studied. A...

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