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Chapter and Conference Paper
Local Gravity Field Modelling in Rugged Terrain Using Spherical Radial Basis Functions: Case Study for the Canadian Rocky Mountains
We analyze the performance of a least-squares approximation of the gravity field using Spherical Radial Basis Functions (SRBFs) in rugged mountains. The numerical experiment is conducted for the gravity distur...
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Chapter and Conference Paper
Comparison of Regional and Global GRACE Gravity Field Models at High Latitudes
In this study we address the question of whether regional gravity field modeling techniques of GRACE data can offer improved resolution over traditional global spherical harmonic solutions. Earlier studies int...
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Chapter and Conference Paper
Comparison of Techniques for the Computation of a Height Reference Surface from Gravity and GPS-Levelling Data
Three different techniques for quasigeoid modelling from gravity and GPS-levelling data are compared: (i) a penalized least-squares technique using spherical radial basis functions provides a gravimetric quasi...
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Chapter
A data-adaptive design of a spherical basis function network for gravity field modelling
A data-adaptive strategy for the design of spherical basis function (SBF) networks is presented. The strategy comprises a data-driven selection of the SBFs prior to parameter estimation and an automatic select...
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Chapter
Local gravity field modelling with multi-pole wavelets
We propose an alternative approach to the application of spherical wavelet functions for local gravity field modelling from terrestrial, airborne and/or space-borne data. Instead of estimating the finest scale...
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Chapter and Conference Paper
DHEA wirkt protektiv bei einer experimentellen polymikrobiellen Sepsis durch CLP — besteht eine pathogenetische Bedeutung des TNF-α?
Sepsis is a frequent complication in the posttraumatic course on the intensive care unit. Cytokines play an important role. High levels of TNF-α correspond to bad prognosis. The main effects of TNF-α during se...
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Chapter and Conference Paper
Minimal invasive Bypassoperationen am schlagenden Herzens und Anwendung einer mechanischen Stabilisierung der Herzoberfläche
Different minimally invasive techniques are currently being controversially discussed among cardiac surgeons. For revascularization of anterior myocardial vessels, off-bypass procedures were performed in 64 ca...