scholarly journals Computer code and users' guide for the preliminary analysis of dual-mode space nuclear fission solid core power and propulsion systems, NUROC3A. AMS report No. 1239b

1976 ◽  
Author(s):  
R.A. Nichols ◽  
W.W. Smith
Keyword(s):  
Preliminary Analysis ◽  
Computer Code ◽  
Nuclear Fission ◽  
Solid Core ◽  
Dual Mode ◽  
Propulsion Systems ◽  
Mode Space

scholarly journals PENGARUH TINGKAT PENDAPATAN DAN KEPUASAN MENERIMA BEASISWA TERHADAP KEBAHAGIAAN PSIKOLOGIS MAHASISWA PROGRAM DUAL MODE SYSTEM DI STAI STAISTAI STAI PATI TAHUN 2013

2016 ◽  
Vol 1 (1) ◽  
pp. 59
Author(s):  
Ahmad Fatah
Keyword(s):  
Hypothesis Testing ◽  
Multiple Regression ◽  
Significant Relationship ◽  
Preliminary Analysis ◽  
Income Level ◽  
Quantitative Approach ◽  
Dual Mode ◽  
Study Population

<p><span>Abstract</span></p><p><span>This study aims to determine the effect of the level of income and satisfaction<br /><span>received scholarships to students of the psychological happiness Dual Mode<br /><span>System at the Islamic Institute of Pati in 2013, using a quantitative approach<br /><span>with three variables: the level of income, the satisfaction of receiving a scholarship and psychological happiness. The study population was all students of the <span>Dual Mode System totaling 117 students. Samples authors take 25% of polulasi, <span>as many as 30 students. Analysis of this study using multiple regression with <span>three steps: a preliminary analysis, hypothesis testing and analysis of further <span>analysis. Results of this study was no effect of income level (X1) with psychological happiness (Y) student Dual Mode System in STAI Starch 2013. Thus the <span>first hypothesis which says "There is a significant relationship between the <span>income level of students to students of the psychological happiness Dual Mode <span>system in sTAI Pati "is rejected. There is an effect of satisfaction received <span>scholarships (X2) with psychological happiness (Y) student Dual Mode System <span>in 2013. So STAI Pati second hypothesis ie "There is significant relationship <span>between satisfaction received scholarships to students of the psychological <span>happiness Dual Mode System in STAI Starch" accepted as true. The effect was <span>of 18.3%, and the remaining 81.7% is influenced by other variables that have <span>not been examined by the authors. No effect of income level (X1) and the <span>satisfaction of receiving a scholarship (X2) with psychological happiness (Y) <span>student Dual Mode System in 2013. So STAI Pati third hypothesis that "There <span>is significant relationship between the level of income and satisfaction received a <span>scholarship to happiness psychological student Dual Mode System d sTAI <span>Starch "rejected.</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></p><p><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><span><br /><span><strong>Keywoard:</strong> <em>tingkat pendapatan, kepuasan menerima beasiswa, kebahagiaan</em><br /><em>psikologis</em></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span><br /></span></p>

scholarly journals Modelling of a Dual-Fuel-Mode Free-Jet Combustion System

Aerospace ◽  
2019 ◽  
Vol 6 (12) ◽  
pp. 135
Author(s):  
Maxim Cooper ◽  
Ashish Alex Sam ◽  
Apostolos Pesyridis
Keyword(s):  
Combustion Chamber ◽  
Primary Objective ◽  
Future Research ◽  
Combustion System ◽  
Commercial Aircraft ◽  
Dual Mode ◽  
Propulsion Systems ◽  
Hypersonic Propulsion ◽  
Free Jet ◽  
Chamber Design

The focus of this study is to design a combustion system able to sustain hypersonic flight at Mach 8. A Dual-Mode Free-Jet combustion chamber design, first tested in 2010 by NASA, is being adapted to run on hydrogen fuel instead of ethylene while addressing the excessive thermal heat load. This study is part of the FAME (Flight at Mach Eight) project, with the primary objective to design and analyse the engine configuration for a hypersonic commercial aircraft. This CFD analysis and validation study, the first to replicate this combustion chamber design, provides detailed instructions on the combustion system design. The analysis from this study can be used for future research to successfully reach a sustainable design and operation of a Dual-Mode Free-Jet combustion chamber. The 53% size reduction in the combustion system represents significant progress which encourages future research regarding in the design of combustion systems for hypersonic propulsion systems.

Dual-Mode Space-Temporal Simultaneous Processing Equalizer

2005 ◽  
Vol 35 (4) ◽  
pp. 353-364
Author(s):  
Yoshihiro Ichikawa ◽  
Shigeki Obote ◽  
Kenichi Kagoshima
Keyword(s):  
Dual Mode ◽  
Simultaneous Processing ◽  
Mode Space

Chemical Non-Equilibrium Model for Simulation of Combustion and Flow in Propulsion and Power Generation Systems

2005 ◽  
Author(s):  
V. I. Naumov ◽  
V. G. Kriukov ◽  
A. L. Abdullin ◽  
A. V. Demin ◽  
R. L. Iskhakova
Keyword(s):  
Power Generation ◽  
Equations Of Motion ◽  
Computer Code ◽  
Propulsion Systems ◽  
Working Medium ◽  
Working Volume ◽  
Mass And Heat Transfer ◽  
Semi Empirical ◽  
Power Generation Systems ◽  
Simulated Time

Novel methodology of the simulation of combustion and flow in propulsion and power generation systems is developed. The basic concept of the methodology and model is division of the working volume into reactors on the ground of equations of motion or semi-empirical models of fluid flow. Each reactor is interpreted as a time-dependent volume with uniform non-stationary parameters. Mass- and heat-transfer between neighbor reactors are simulated. Time variation of chemical composition of working medium is described by equations of chemical kinetics derived in exponential form. Depending on the specific conditions mathematical model of each reactor could include additional “submodels” and corresponding equations of accompanying processes which describe variation of temperature, pressure, mass, enthalpy, etc. Reactor’s approach is realized in invariant computer code NERCHIM. Models of combustion and flow in propulsion systems, developed on the basis of reactor’s approach and NERCHIM software are presented.

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