Results 71 to 80 of about 1,818,861 (299)

ICESat‐2 Precision Orbit Determination

Earth and Space Science, 2021
The ICESat‐2 Precision Orbit Determination (POD) system computes the precise position of the laser altimeter instrument in inertial space, a measurement necessary for accurate geolocation of individual photon surface returns.
T. C. Thomas, S. B. Luthcke, T. A. Pennington, J. B. Nicholas, D. D. Rowlands   +4 more
doaj   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source

COSMIC-2 Precise Orbit Determination [PDF]

, 2019
We present initial results for post-processed GNSS orbit and clock estimation for the FORMOSAT-7/COSMIC-2 (Constellation Observing System for Meteorology, Ionosphere, and Climate) constellation.
Arnold, Daniel, VanHove, Teresa, Weiss, Jan P., Schreiner, Bill, Hunt, Doug, Jäggi, Adrian   +5 more
core   +1 more source

Orbit Propagation and Determination of Low Earth Orbit Satellites

International Journal of Antennas and Propagation, 2014
This paper represents orbit propagation and determination of low Earth orbit (LEO) satellites. Satellite global positioning system (GPS) configured receiver provides position and velocity measures by navigating filter to get the coordinates of the orbit ...
Ho-Nien Shou
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

OPERATIONAL ASPECTS OF ORBIT DETERMINATION WITH GPS FOR SMALL SATELLITES WITH A SAR PAYLOAD. [PDF]

, 2005
Scientific small satellite missions for remote sensing with Synthetic Aperture Radar (SAR) payloads or high accuracy optical sensors, pose very strict requirements on the accuracy of the reconstructed satellite positions, velocities and accelerations ...
Zehetbauer, Tino, Neff, Thomas, De Florio, Sergio   +2 more
core  

Probabilistic Methods for Initial Orbit Determination and Orbit Determination in Cislunar Space

CoRR
In orbital mechanics, Gauss's method for orbit determination (OD) is a popular, minimal assumption solution for obtaining the initial state estimate of a passing resident space object (RSO). Since much of the cislunar domain relies on three-body dynamics, a key assumption of Gauss's method is rendered incompatible, creating a need for a new, minimal ...
Ishan Paranjape, Tarun Hejmadi, Suman Chakravorty   +2 more
openaire   +3 more sources

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

FEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi, João C. Encarnação, Valeria Napolitano, Grzegorz Dubin, Grzegorz Popowicz, Karl Andersson, U. Helena Danielson   +6 more
wiley   +1 more source

First In-orbit Experience of TerraSAR-X Flight Dynamics Operations [PDF]

, 2007
TerraSAR-X is an advanced synthetic aperture radar satellite system for scientific and commercial applications that is realized in a public-private partnership between the German Aerospace Center (DLR) and the Astrium GmbH.
Kiehling, Reinhard, Kirschner, M., Kazeminejad, Bobby, Kiehling, R., Yoon, Y., Kirschner, Michael, Kahle, Ralph, D'Amico, Simone, D'Amico, S., Kahle, R., Kazeminejad, B., Yoon, Yoke   +11 more
core  

Precise orbit determination for representative near-Earth asteroids based on optical observations of ground-based stations and the Earth-Moon L1 point’s orbit

Geo-spatial Information Science
Precise orbit determination of near-Earth asteroids (NEAs) provides a critical foundation for exploration missions. Considering that cislunar space is a critical domain for future human space activities and the unique positional advantage of the Earth ...
Zhenqi Wang, Jianguo Yan, Wutong Gao, Shangbiao Sun, Zhen Wang, Wanling Yang, Hakim Saibi, Jean-Pierre Barriot   +7 more
doaj   +1 more source