Results 1 to 10 of about 17,680 (216)
Multi-Constellation Software-Defined Receiver for Doppler Positioning with LEO Satellites [PDF]
Sensors, 2020 Farzan Farhangian +2 more
exaly +2 more sources
Position of first Doppler peak [PDF]
Second international workshop on particle physics and the early universe (COSMO-98), 1999 This talk describes an analytic calculation of the position of the first accoustic peak as a function of the matter density and the cosmological constant (work with Y.J. Ng and R. Rohm), agreeing with independent numerical studies. There is also discussion of supernovae observations and how together these approaches combine to suggest non-zero ...
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Doppler-aided positioning in GNSS receivers - A performance analysis [PDF]
Signal Processing, 2020 The main objective of Global Navigation Satellite Systems (GNSS) is to precisely locate a receiver based on the reception of radio-frequency waveforms broadcasted by a set of satellites. Given delayed and Doppler shifted replicas of the known transmitted signals, the most widespread approach consists in a two-step algorithm.
François Vincent +4 more
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XLVII. The Doppler effect in positive rays [PDF]
The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1909 n ...
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Semi-dynamical Doppler satellite positioning
Bulletin Géodésique, 1976 In semi-dynamical satellite geodesy, the satellite orbit is determined beforehand by dynamical methods, and tracking station coordinates are determined geometrically from satellite observations and the accepted satellite coordinates. This paper analyzes the use of the U.S.
J. Kouba, D. E. Wells
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False-positive diagnosis of pulmonary hypertension by Doppler echocardiography [PDF]
European Respiratory Journal, 1998 A 37-yr-old female presented with a history of several months of exertional dyspnoea. A diagnosis of primary pulmonary hypertension was suspected on the basis of a negative extensive cardiorespiratory work-up with a systolic pulmonary artery pressure of 41-46 mmHg calculated from repeated measurement of the maximum velocity of tricuspid regurgitation ...
Vachiery, Jean-Luc +3 more
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Accuracy of Doppler Determinations of Station Positions [PDF]
Symposium - International Astronomical Union, 1972 Locations of Doppler satellite observing stations have been revised to obtain a set which is more self-consistent and more consistent with the CIO pole. Residuals of satellite observations for 1970 have been analyzed using the new coordinates to determine mean and standard errors for five days of observations of latitude versus station, time of day ...
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Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations
Pediatric Blood &Cancer, EarlyView.ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan +18 more
wiley +1 more source
Symposium on satellite Doppler positioning
Eos, Transactions American Geophysical Union, 1979 The Second International Geodetic Symposium on Satellite Doppler Positioning was held in Austin, Texas, from January 22 to January 26,1979. The symposium was sponsored by the Defense Mapping Agency and the National Ocean Survey, hosted by the Applied Research Laboratories of the University of Texas at Austin, and sanctioned by the International ...
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi +9 more
wiley +1 more source