A Review on Precise Orbit Determination of Various LEO Satellites [PDF]
The need for precise orbit determination (POD) has grown significantly due to the increased amount of space-based activities appearing at an accelerating pace.
Kuusniemi, Heidi+3 more
core
Large multidimensional digital images of cancer tissue are becoming prolific, but many challenges exist to automatically extract relevant information from them using computational tools. We describe publicly available resources that have been developed jointly by expert and non‐expert computational biologists working together during a virtual hackathon
Sandhya Prabhakaran+16 more
wiley +1 more source
Comparison of shadow models and their impact on precise orbit determination of BeiDou satellites during eclipsing phases [PDF]
Yan Zhang+3 more
openalex +1 more source
Office of Spaceflight Standard Spaceborne Global Positioning System (GPS) user equipment project [PDF]
The Global Positioning System (GPS) provides the following: (1) position and velocity determination to support vehicle GN&C, precise orbit determination, and payload pointing; (2) time reference to support onboard timing systems and data time tagging; (3)
Saunders, Penny E.
core +1 more source
Development of Small-Scale and Low-Power Attitude Determination System for Nanoscale Satellites by Infrared Earth-Imaging Sensors [PDF]
Many space missions require that the spacecraft be oriented in a specific direction to operate correctly. ARKSAT 1, the University of Arkansas’s first satellite, is a 1U CubeSat designed to perform atmospheric spectroscopy from Low-Earth Orbit and as ...
Tolar, Zachary
core +2 more sources
KMT2A degradation is observed in decitabine‐responsive acute lymphoblastic leukemia cells
We demonstrate that decitabine (DEC) not only degrades the DNA methyltransferase DNMT1 but also the leukemic driver lysine methyltransferase KMT2A likely due to structural similarity of the DNA‐binding CXXC domains. DEC influences KMT2A downstream processes and synergizes with menin inhibitor revumenib (REV) to decrease leukemic cell proliferation, and
Luisa Brock+10 more
wiley +1 more source
Altimeter measurements for the determination of the Earth's gravity field [PDF]
Progress in the following areas is described: refining altimeter and altimeter crossover measurement models for precise orbit determination and for the solution of the earth's gravity field; performing experiments using altimeter data for the improvement
Schutz, B. E.+2 more
core +1 more source
Polynomial representation of model uncertainty in dynamical systems [PDF]
This chapter introduces an approach to capture unmodelled components in dynamical systems through a hierarchical polynomial expansion in the state space.
Vasile, Massimiliano
core +1 more source
Prostate cancer is a leading malignancy with significant clinical heterogeneity in men. An 11‐gene signature derived from dysregulated epithelial cell markers effectively predicted biochemical recurrence‐free survival in patients who underwent radical surgery or radiotherapy.
Zhuofan Mou, Lorna W. Harries
wiley +1 more source
The Short-Arc Precise Orbit Determination of GEO Satellites Using VLBI and Transfer Ranging [PDF]
Kai Nan+5 more
openalex +1 more source