Formation Flying Constant Low-thrust Control Model Based on Relative Orbit Elements

2015 ◽  
Author(s):  
Xinwei Wang ◽  
Yinrui Rao ◽  
Chao Han ◽  
Yongkang Shi
Keyword(s):  
Formation Flying ◽  
Control Model ◽  
Low Thrust ◽  
Model Based ◽  
Relative Orbit ◽  
Thrust Control

BC-BLPM: A multi-level security access control model based on blockchain technology

2021 ◽  
Vol 18 (2) ◽  
pp. 110-135
Author(s):  
Xiang Yu ◽  
Zhangxiang Shu ◽  
Qiang Li ◽  
Jun Huang
Keyword(s):  
Access Control ◽  
Control Model ◽  
Access Control Model ◽  
Model Based ◽  
Blockchain Technology ◽  
Multi Level

Temperature Prediction at the Blow End of the Converter via Control Model

2014 ◽  
Vol 1025-1026 ◽  
pp. 298-301
Author(s):  
Alexandre Furtado Ferreira
Keyword(s):  
Mathematical Model ◽  
Dynamic Control ◽  
Control Model ◽  
Mass Balances ◽  
Temperature Prediction ◽  
Oxygen Blow ◽  
Model Based ◽  
Gas Control ◽  
Prediction Capability

In the present work, a technique and model for temperature prediction at the blow end are briefly discussed, along with their limitations and perspectives for application. As a result of this analysis, a mathematical model based in heat and mass balances has been developed with a view to evaluating the possibility of improving this prediction capability. The study here presented focuses the development of a semi-dynamic control model in the LD-KGC converter (Linz-Donawitz-Kawasaki Gas Control Converter). The control model enables one to predict the temperature of the blow end by solving both the energy and mass equations. The inputs to the control model are the load data of the LD-KGC converter at the blow beginning and the collected data by the lance to 89% of oxygen blow. The results obtained in the present work were compared to the data measured in steelmaking. The semi-dynamic control model results agree well with data for LD-KGC converters.

scholarly journals Low-Thrust Control Strategies for Earth-to-Mars Trajectories

Space Flight ◽  
2018 ◽  
Author(s):  
Marco Gómez Jenkins ◽  
Jose Antonio Castro Nieto
Keyword(s):  
Control Strategies ◽  
Low Thrust ◽  
Thrust Control
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