Results 21 to 30 of about 28,920,622 (304)
THE KINEMATICS PARAMETERS OF THE GALAXY USING DATA OF MODERN ASTROMETRIC CATALOGUES
Odessa Astronomical Publications, 2016 Based on the Ogorodnikov-Milne model, we analyze the proper motions of XPM2, UCAC4 and PPMXL stars. To estimate distances to the stars we used the method of statistical parallaxes herewith the random errors of the distance estimations do not exceed 10 ...
V. S. Akhmetov +3 more
doaj +1 more source
Ecology and Society, 2005 Flood disturbance processes play a key role in the functioning of riparian ecosystems and in the maintenance of biodiversity along river corridors. As a result, riparian ecosystems can be described as mobile habitat mosaics characterized by variability ...
Francine M. R. Hughes +2 more
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Relativity: chronoeometric drawings
Литьë и металлургия, 2020 Based on the simplest representations, questions of relativistic compactification of reference systems with relative virtual motion, non-locality of pseudo-reference frames of world constants and Schrödinger’s thesis on the completeness of the general ...
I. O. Sazonenko, V. . I. Sazonenko
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GenomeScope 2.0 and Smudgeplot for reference-free profiling of polyploid genomes
Nature Communications, 2020 An important assessment prior to genome assembly and related analyses is genome profiling, where the k-mer frequencies within raw sequencing reads are analyzed to estimate major genome characteristics such as size, heterozygosity, and repetitiveness ...
T. Ranallo-Benavidez +4 more
semanticscholar +1 more source
Integrated GNSS/IMU-Gyrocompass with Rotating IMU. Development and Test Results
Remote Sensing, 2020 The paper presents the developed integrated GNSS/IMU gyrocompass which, unlike the existing systems, contains a single-axis rotating platform with two antennas installed on it and an inertial measurement unit with tactical grade fiber-optic gyros.
Gennadiy Emel’yantsev +7 more
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Improvement of Hipparcos proper motions in declination [PDF]
Serbian Astronomical Journal, 2006 More than a decade elapsed after the HIPPARCOS ESA mission (ESA 1997) observations have been collected. This first astronomical satellite mission was less than 4 years long so that 1991.25 is the epoch of the HIPPARCOS Catalogue. Many other projects have
Damljanović Goran M. +2 more
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Robotics Comput. Integr. Manuf., 2020 This paper reviews the recent development of Digital Twin technologies in manufacturing systems and processes, to analyze the connotation, application scenarios, and research issues of Digital Twin-driven smart manufacturing in the context of Industry 4 ...
Yuqian Lu +4 more
semanticscholar +1 more source
Spatial reference systems [PDF]
Rudarski radovi, Bor, 2012 Geospatial data gained from different sources have to be referenced to the same geodetic datum and coordinate system. Forming of joint reference system enables easier update and geometric harmonization, access, exchange and use of geospatial data. Horizontal and vertical positions of points are no longer independent components.
Nenad Vusovic +2 more
openaire +2 more sources
A Federated Reference Structure for Open Informational Ecosystems
Journal of Interactive Media in Education, 2016 The paper describes the concept of a federated ecosystem for Open Educational Resources (OER) in the German education system. Here, a variety of OER repositories (ROER) (Muuß-Merholz & Schaumburg, 2014) and reference platforms have been established in ...
Richard Heinen +4 more
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, 2016 A major weakness among loading models for pedestrians walking on flexible structures proposed in recent years is the various uncorroborated assumptions made in their development.
M. Bocian +5 more
semanticscholar +1 more source