نتایج جستجو برای: geodetic number

تعداد نتایج: 1172042  

2006
C. Watson P. Tregoning R. Coleman

[1] Unmodelled sub-daily periodic signals can propagate into time series of daily geodetic coordinates and tropospheric estimates at various different frequencies. Geophysical interpretations of geodetic products, particularly at seasonal timescales, can therefore be affected by poorly modelled signals in the geodetic analysis. In this study, we use two solid Earth tidemodels (IERS2003 and IERS...

Journal: :Journal of the Japan society of photogrammetry and remote sensing 1999

Journal: :Journal of Combinatorial Theory 1968

Journal: :The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences 2017

Journal: :Physical review letters 2011
C W F Everitt D B DeBra B W Parkinson J P Turneaure J W Conklin M I Heifetz G M Keiser A S Silbergleit T Holmes J Kolodziejczak M Al-Meshari J C Mester B Muhlfelder V G Solomonik K Stahl P W Worden W Bencze S Buchman B Clarke A Al-Jadaan H Al-Jibreen J Li J A Lipa J M Lockhart B Al-Suwaidan M Taber S Wang

Gravity Probe B, launched 20 April 2004, is a space experiment testing two fundamental predictions of Einstein's theory of general relativity (GR), the geodetic and frame-dragging effects, by means of cryogenic gyroscopes in Earth orbit. Data collection started 28 August 2004 and ended 14 August 2005. Analysis of the data from all four gyroscopes results in a geodetic drift rate of -6601.8±18.3...

Journal: :Discrete Applied Mathematics 2005
Alastair Farrugia

We prove three results conjectured or stated by Chartrand, Fink and Zhang [European J. Combin 21 (2000) 181–189, Disc. Appl. Math. 116 (2002) 115–126, and pre-print of “The hull number of an oriented graph”]. For a digraph D, Chartrand et al. defined the geodetic, hull and convexity number — g(D), h(D) and con(D), respectively. For an undirected graph G, g(G) and g(G) are the minimum and maximu...

2011
Christopher Beaudoin Arthur Niell

For the past three years, the MIT Haystack Observatory and the broadband team have been developing a proof-of-concept broadband geodetic VLBI microwave (2-12 GHz) receiver. Also on-going at Haystack is the development of post-correlation processing needed to extract the geodetic observables. Using this processing, the first fully-phase-calibrated geodetic fringes have been produced from observa...

Journal: :نشریه دانشکده فنی 0
زهرا موسوی بهزاد وثوقی

a new and significant source of information on earthquake studies has been provided by space geodesy. the data which are gathered by various techniques of space geodesy, can quantify potential of seismic activity in the region of interest. to achieve this goal, the main advantage of extra-terrestrial geodetic data in comparison with the conventional data from geology and seismology is the abili...

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