Results 91 to 100 of about 2,425,563 (382)
Dynamic Limits on Planar Libration-Orbit Coupling Around an Oblate Primary
, 2012 This paper explores the dynamic properties of the planar system of an ellipsoidal satellite in an equatorial orbit about an oblate primary. In particular, we investigate the conditions for which the satellite is bound in librational motion or when the ...
CM Hartzel +25 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Purpose This study aimed to explore the association between quantitative shape irregularity and density heterogeneity of hematomas and hematoma expansion (HE) for intracerebral hemorrhage (ICH) patients. Methods This cohort study included patients arriving within 24 h of symptom onset between August 2021 and July 2022 as the derivation cohort ...
Zeqiang Ji +11 more
wiley +1 more source
Models and performance of SBAS and PPP of BDS
Satellite Navigation, 2022 Satellite Based Augmentation System (SBAS) is one of the services provided by the BeiDou Navigation Satellite System (BDS). It broadcasts four types of differential corrections to improve user application performance.
Junping Chen +5 more
doaj +1 more source
The Planes of Satellite Galaxies Problem, Suggested Solutions, and Open Questions
, 2018 Satellite galaxies of the Milky Way and of the Andromeda galaxy have been found to preferentially align in significantly flattened planes of satellite galaxies, and available velocity measurements are indicative of a preference of satellites in those ...
Pawlowski, Marcel S.
core +1 more source
Satellite-to-Satellite Tracking and Satellite Gravity Gradiometry [PDF]
, 2001 The purpose of satellite-to-satellite tracking (SST) and/or satellite gravity gradiometry (SGG) is to determine the gravitational field on and outside the Earth's surface from given gradients of the gravitational potential and/or the gravitational field at satellite altitude.
Freeden, Willi +2 more
openaire +1 more source
Activation of NF‐κB Signaling by Optogenetic Clustering of IKKα and β
Advanced Biology, EarlyView.This study presents an optogenetic approach for graded clustering of eGFP‐fused proteins using an eGFP‐specific nanobody and engineered Cryptochrome 2 variants. The method enables potent, reversible activation of NF‐κB signaling via endogenous pathways, as confirmed by RNA sequencing. This versatile system provides a spatially and temporally controlled
Alexandra Anna Maria Fischer +8 more
wiley +1 more source
Development of Pyramidal Type 2-AXES Analog Sun Sensor [PDF]
Journal of Astronomy and Space Sciences, 2000 PSS (Pyramidal type 2-axes Analog Sun Sensor) which will be used for KAISTSAT-4 is designed to be small, light, low in power consumption, and adequate for small satellite attitude sensor.
Sungho Rhee +3 more
doaj
GIL: a tightly coupled GNSS PPP/INS/LiDAR method for precise vehicle navigation
Satellite Navigation, 2021 Accurate positioning and navigation play a vital role in vehicle-related applications, such as autonomous driving and precision agriculture. With the rapid development of Global Navigation Satellite Systems (GNSS), Precise Point Positioning (PPP ...
Xingxing Li +5 more
doaj +1 more source
Advanced Biology, EarlyView.The axolotl's remarkable regenerative abilities decline with age, the causes may include the numerous repetitive elements within its genome. This study uncovers how Ty3 retrotransposons and coexpression networks involving muscle and immune pathways respond to aging and regeneration, suggesting that transposons respond to physiological shifts and may ...
Samuel Ruiz‐Pérez +8 more
wiley +1 more source
Satellite Navigation, 2021 The BeiDou Navigation Satellite System (BDS) provides global Positioning, Velocity, And Timing (PVT) services that are widely used in various areas. The BDS satellites frequently need the orbit maneuvers due to various perturbations to keep satellites in
Rui Tu +5 more
doaj +1 more source