Abstract: In this paper, a fault-tolerant control scheme is proposed for the rigid spacecraft attitude control system subject to external disturbances, multiple system uncertainties, and actuator ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, ...

This is the most complete handbook on the quantum theory of angular momentum. Containing basic definitions and theorems as well as relations, tables of formula and numerical tables which are essent ...

Abstract: Presents corrections to the paper, (Corrections to “Modeling of the Gate Bias- Dependent Velocity-Field Relationship and Physics-Based Current-Voltage Characteristics in AlGaN/GaN HFETs”).

Deep in the core of most galaxies, hidden by spinning clouds of gas and dust, black holes spin like cosmic engines. These ...