Results 21 to 30 of about 1,770,136 (289)

The Mass Dependance of Satellite Quenching in Milky Way-like Halos [PDF]

open access: yes, 2014
Using the Sloan Digital Sky Survey, we examine the quenching of satellite galaxies around isolated Milky Way-like hosts in the local Universe. We find that the efficiency of satellite quenching around isolated galaxies is low and roughly constant over ...
Boylan-Kolchin, Michael   +5 more
core   +1 more source

Single-epoch RTK performance assessment of tightly combined BDS-2 and newly complete BDS-3

open access: yesSatellite Navigation, 2021
The BeiDou global navigation satellite system (BDS-3) constellation deployment has been completed on June 23, 2020, with a full constellation comprising 30 satellites.
Wanke Liu   +5 more
doaj   +1 more source

On the Orbits of Infalling Satellite Halos [PDF]

open access: yes, 2010
The orbital properties of infalling satellite halos set the initial conditions which control the subsequent evolution of subhalos and the galaxies that they host, with implications for mass stripping, star formation quenching, and merging.
Abadi   +71 more
core   +1 more source

HDAC4 regulates satellite cell proliferation and differentiation by targeting P21 and Sharp1 genes [PDF]

open access: yes, 2018
Skeletal muscle exhibits a high regenerative capacity, mainly due to the ability of satellite cells to replicate and differentiate in response to appropriate stimuli. Epigenetic control is effective at different stages of this process.
Adamo, Sergio   +9 more
core   +2 more sources

Method of Tower-less Calibration for Phase Parameter of Tracking System

open access: yesMATEC Web of Conferences, 2015
This paper introduced the principle of angle errors in tracking system. The demodulation was only related to signal envelop, and supported the phase calibration of radio star.
Ge Tiezhi   +4 more
doaj   +1 more source

A joint InSAR-GNSS workflow for correction and selection of interferograms to estimate high-resolution interseismic deformations

open access: yesSatellite Navigation, 2023
Knowledge of the spatial distribution of interseismic deformations is essential to better understand earthquake cycles. The existing methods for improving the reliability of the obtained deformations often rely on visual inspection and prior model ...
Hongzhi Liu   +4 more
doaj   +1 more source

Assessment of tomographic window and sampling rate effects on GNSS water vapor tomography

open access: yesSatellite Navigation, 2023
The ground-based Global Navigation Satellite System (GNSS) water vapor tomography is increasingly important in GNSS meteorology. As the multi-GNSS and more ground-based GNSS sites can be incorporated into the regional water vapor tomographic model ...
Fei Yang   +4 more
doaj   +1 more source

Performance of Angle of Arrival Detection Using MUSIC Algorithm in Inter-Satellite Link

open access: yes, 2018
An attitude of satellite is not always static, sometimes it moves randomly and the antenna pointing of satellite is harder to achieve line of sight communication to other satellite when it is outage by tumbling effect.
Muhammad, Cahya Budi   +2 more
core   +1 more source

The rotationally stabilized VPOS and predicted proper motions of the Milky Way satellite galaxies [PDF]

open access: yes, 2013
The satellite galaxies of the Milky Way (MW) define a vast polar structure (VPOS), a thin plane perpendicular to the MW disc. Proper motion (PM) measurements are now available for all of the 11 brightest, `classical' satellites and allow an updated ...
Kroupa, Pavel, Pawlowski, Marcel S.
core   +1 more source

Semi-analytical assessment of the relative accuracy of the GNSS/INS in railway track irregularity measurements

open access: yesSatellite Navigation, 2021
An aided Inertial Navigation System (INS) is increasingly exploited in precise engineering surveying, such as railway track irregularity measurement, where a high relative measurement accuracy rather than absolute accuracy is emphasized.
Qijin Chen   +3 more
doaj   +1 more source

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