On the NDP onset in pre-ignition transient of high performance SRMs: VEGA Z9A experience
This paper discusses the early phase of the ignition transient of the VEGA Launcher's third stage solid rocket motor, Zefiro 9A. During the first two firing tests of the Z9A SRM (QM2 and VT1) a peculiar unexpected negative force peak and a significant pressure unbalance in the motor chamber were measured during the very first phase of the ignition transient.
Kalman filter physical retrieval of surface emissivity and temperature from geostationary infrared radiances
The high temporal resolution of data acquisition
by geostationary satellites and their capability to resolve the
diurnal cycle allows for the retrieval of a valuable source of
information about geophysical parameters.
A Hybrid With Cross-Entropy Method and Sequential Quadratic Programming to Solve Economic Load Dispatch Problem
This paper presents a new hybrid approach integrating the cross-entropy (CE) algorithm and the sequential quadratic programming (SQP) technique to solve the economic load dispatch (ELD) problem related to electrical power generating units. Due to the introduction of the valve-point effect in the ELD objective function, the optimization task requires tools appropriate for a nonconvex optimization landscape.
