scholarly journals Role of Precombustion Chamber Design in Feed-System Coupled Instabilities of Hybrid Rockets

2020 ◽  
Vol 36 (6) ◽  
pp. 796-805
Author(s):  
Jungpyo Lee ◽  
Artur Elias De Morais Bertoldi ◽  
Artem Andrianov ◽  
Renato Alves Borges ◽  
Carlos Alberto Gurgel Veras ◽  
...  
Keyword(s):  
Feed System ◽  
Precombustion Chamber ◽  
Chamber Design ◽  
Hybrid Rockets

Role of Injection in Hybrid Rockets Regression Rate Behaviour

2005 ◽  
Vol 21 (4) ◽  
pp. 606-612 ◽  
Author(s):  
Carmine Carmicino ◽  
Annamaria Russo Sorge
Keyword(s):  
Regression Rate ◽  
Hybrid Rockets ◽  
Rate Behaviour

Gallium incorporation in InAlN: role of the chamber design and history, and the effects of growth pressure

2016 ◽  
Vol 214 (4) ◽  
pp. 1600441 ◽  
Author(s):  
H. Ben Ammar ◽  
A. Minj ◽  
P. Gamarra ◽  
C. Lacam ◽  
M. Tordjman ◽  
...  
Keyword(s):  
Growth Pressure ◽  
Chamber Design

Emission Reductions Through Precombustion Chamber Design in a Natural Gas, Lean Burn Engine

1992 ◽  
Vol 114 (3) ◽  
pp. 466-474 ◽  
Author(s):  
M. E. Crane ◽  
S. R. King
Keyword(s):  
Natural Gas ◽  
Exhaust Emissions ◽  
Hydrocarbon Emissions ◽  
Oxides Of Nitrogen ◽  
Lean Burn ◽  
Precombustion Chamber ◽  
Engine Efficiency ◽  
Chamber Design ◽  
And Control ◽  
Total Hydrocarbons

A study was conducted to evaluate the effects of various precombustion chamber design, operating, and control parameters on the exhaust emissions of a natural gas engine. Analysis of the results showed that engine-out total hydrocarbons and oxides of nitrogen (NOx) can be reduced, relative to conventional methods, through prechamber design. More specifically, a novel staged prechamber yielded significant reductions in NOx and total hydrocarbon emissions by promoting stable prechamber and main chamber ignition under fuel-lean conditions. Precise fuel control was also critical when balancing low emissions and engine efficiency (i.e., fuel economy). The purpose of this paper is to identify and explain positive and deleterious effects of natural gas prechamber design on exhaust emissions.

Role of dactinomycin in the improved survival of children with Wilms' tumor

JAMA ◽  
1966 ◽  
Vol 195 (12) ◽  
pp. 1005-1009 ◽  
Author(s):  
D. J. Fernbach
Keyword(s):  
Wilms Tumor

Role of the allergist in diagnosis and management of patients with uveitis

JAMA ◽  
1966 ◽  
Vol 195 (3) ◽  
pp. 167-172 ◽  
Author(s):  
T. E. Van Metre
Keyword(s):  
Diagnosis And Management

The power of norms to sway fused group members

2018 ◽  
Vol 41 ◽  
Author(s):  
Winnifred R. Louis ◽  
Craig McGarty ◽  
Emma F. Thomas ◽  
Catherine E. Amiot ◽  
Fathali M. Moghaddam
Keyword(s):  
Evolutionary Anthropology ◽  
Normative Systems ◽  
Violent Extremism ◽  
Identity Fusion ◽  
Group Members

AbstractWhitehouse adapts insights from evolutionary anthropology to interpret extreme self-sacrifice through the concept of identity fusion. The model neglects the role of normative systems in shaping behaviors, especially in relation to violent extremism. In peaceful groups, increasing fusion will actually decrease extremism. Groups collectively appraise threats and opportunities, actively debate action options, and rarely choose violence toward self or others.

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

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