Results 101 to 110 of about 2,173,291 (371)
Consideration on Actualizing the Non-Dimensional Star Pattern Recognition Algorithm for a Typical Laboratory Star Tracker [PDF]
فصلنامه علوم و فناوری فضایی, 2012 Star trackers are one of the most accurate attitude determination devices of a spacecraft. Star trackers are able to determine the spacecraft attitude with the use of recognizing the stars within their field of view.
Jafar Roshanian +3 more
doaj
Precision Pointing of IBEX-Lo Observations
, 2011 Post-launch boresight of the IBEX-Lo instrument onboard the Interstellar Boundary Explorer (IBEX) is determined based on IBEX-Lo Star Sensor observations.
D. Heirtzler +12 more
core +1 more source
A New Approach for Small Satellite Gyroscope and Star Tracker Fusion
, 2016 This paper discusses the use of hybridization of measurements from different sensors (namely the gyroscope and star tracker) in order to estimate the attitude of a satellite.
Ngo Duy Tan, T. Vinh, B. T. Tuyen
semanticscholar +1 more source
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei +3 more
wiley +1 more source
Onorbit IMU alignment error budget [PDF]
The Star Tracker, Crew Optical Alignment Sight (COAS), and Inertial Measurement Unit (IMU) from a complex navigation system with a multitude of error sources were combined. A complete list of the system errors is presented.
Corson, R. W.
core +1 more source
Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies
FEBS Open Bio, EarlyView.We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli +8 more
wiley +1 more source
Star Identification Algorithm Based on Dynamic Distance Ratio Matching
Remote SensingA star tracker is a widely used celestial sensor in astronomical navigation systems, which calculates the spacecraft’s high-precision attitude by observing stars in space to obtain several star vectors.
Ya Dai +8 more
doaj +1 more source
Experimental Highlights: Heavy Quark Physics in Heavy-Ion Collisions at RHIC
EPJ Web of Conferences, 2017 The discovery at RHIC of large high-pT suppression and flow of electrons from heavy quarks flavors have altered our view of the hot and dense matter formed in central Au + Au collisions at √sNN = 200 GeV.
Nouicer Rachid
doaj +1 more source
Clementine Observations of the Zodiacal Light and the Dust Content of the Inner Solar System [PDF]
, 2002 Using the Moon to occult the Sun, the Clementine spacecraft used its navigation cameras to map the inner zodiacal light at optical wavelengths over elongations of 3-30 degrees from the Sun.
Cooper, B. +3 more
core +2 more sources
FEBS Open Bio, EarlyView.ERα splice variant ERα∆7 lacks the C‐terminus, and its expression may change phenotypes of breast cancers. Our results showed that ERα∆7 is found in the luminal A subtype, and elevated ERα∆7 levels are linked to improved cell survival with lower proliferation and migration.
Long Wai Tsui +10 more
wiley +1 more source