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GSK3β inhibits the differentiation of follicular granulosa cells by promoting lipid accumulation through autophagy in chickens. [PDF]
Poult SciLiao Y +9 more
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Zero-shot semantic landmark-based visual odometry using foundation models for unstructured planetary exploration. [PDF]
Front Robot AIPérez-Ramos C +2 more
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Protocol for generation of a 3D humanized lung-tumor-on-a-chip model of immune-hot and immune-cold microenvironments. [PDF]
STAR ProtocAñez SB +5 more
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A neuroimaging dataset combining movie-watching, eye-tracking, sensorimotor mapping, and cognitive tasks. [PDF]
Sci DataLevchenko E +5 more
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Development of a 3D nnU-Net-based cell tracking platform for quantifying myocardial deformation in zebrafish. [PDF]
iScienceTeranikar T +10 more
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Autonomous Star Tracker Performance
57th International Astronautical Congress, 2006Abstract First in NASA's New Frontiers series of missions, the New Horizons spacecraft was successfully launched on January 19, 2006. New Horizons is scheduled to perform a gravity assist at Jupiter on February 28, 2007, arrive at Pluto on July 14, 2015; completing an extended mission to at least one Kuiper Belt Object in subsequent years.
Gabe D. Rogers +7 more
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SPIE Proceedings, 1986
A high precision star tracker has been developed as part of the attitude measurement and control system of the German Roentgen-Satellit ("ROSAT"). A Peltier cooled CCD array in the focal plane of an 82 mm refractive lens is used to measure the position of up to 3 stars within a field of view (FOV) of 5.9° x 4.4°. The position of a fourth reference star
Gunter Lange +2 more
openaire +1 more source
A high precision star tracker has been developed as part of the attitude measurement and control system of the German Roentgen-Satellit ("ROSAT"). A Peltier cooled CCD array in the focal plane of an 82 mm refractive lens is used to measure the position of up to 3 stars within a field of view (FOV) of 5.9° x 4.4°. The position of a fourth reference star
Gunter Lange +2 more
openaire +1 more source
Applied Optics, 1986
A computer-controlled star tracker has been built for use in the IR. A small dedicated computer is the active element in a servo loop that moves two small mirrors located in the light path and keeps the light beam centered in the input aperture of an IR heterodyne spectrometer.
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A computer-controlled star tracker has been built for use in the IR. A small dedicated computer is the active element in a servo loop that moves two small mirrors located in the light path and keeps the light beam centered in the input aperture of an IR heterodyne spectrometer.
openaire +2 more sources
Applied Optics, 1966
In many applications of star trackers, extremely short acquisition times, as well as accuracy and sensitivity, are required. Tracking systems employing the vidicon as a radiation sensor have been shown to provide the necessary speed of acquisition for such applications.
openaire +2 more sources
In many applications of star trackers, extremely short acquisition times, as well as accuracy and sensitivity, are required. Tracking systems employing the vidicon as a radiation sensor have been shown to provide the necessary speed of acquisition for such applications.
openaire +2 more sources