Results 21 to 30 of about 98,594 (308)
Comparative Analysis of Liquid Rocket Engines and Solid Rocket Engines based on Specific-Impulse
, 2023 This research paper explores the distinction between solid rocket engines and liquid rocket engines, with a focus on their specific impulse. Extensive research was conducted on various rockets, and the data collected was analyzed and presented in this ...
Natnael Ashebir (16533276)
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Frontiers in Mechanical Engineering, 2023 A pre-cooled combined engine based on a closed helium (He) cycle offers high specific thrust and high specific impulse. Therefore, evaluation of the performance of such an engine is crucial for engine applications and key technology research.
Ma Tong-Ling +7 more
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Macroeconomic effects of reallocation shocks: a generalised impulse response function analysis for three European countries [PDF]
, 2003 We develop a generalised impulse response function (GIRF) approach to explore the different impacts of aggregate and sectoral shocks within a VAR-GARCH-M model.
Wolfgang Polasekc +14 more
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Control of Myelination by Specific Patterns of Neural Impulses [PDF]
The Journal of Neuroscience, 1998 A cell culture preparation equipped with stimulating electrodes was used to investigate whether action potential activity can influence myelination of mouse dorsal root ganglia axons by Schwann cells. Myelination was reduced to one-third of normal by low-frequency impulse activity (0.1 Hz), but higher-frequency stimulation (1 Hz) had no effect.
B, Stevens, S, Tanner, R D, Fields
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Modelling Rocket System Performance Parameters
Academy Journal of Science and Engineering, 2022 What distinguishes the rocket system from airbreathing engines is that the rocket carries its own propellants, fuel and oxidants. The modern rocket was originally developed for ballistic missiles.
Nnorom Achara
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Liquid rocket engine performance assessment in the context of small launcher optimisation [PDF]
INCAS Bulletin, 2019 The paper presents a fast mathematical model that can be used to quickly asses the propulsive characteristics of liquid propelled rocket engines. The main propulsive parameters are computed using combustion surfaces obtained after a nonlinear data ...
Alexandru-Iulian ONEL +4 more
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Metals, 2022 The current transmission and reflection laser ablation micropropulsion modes have the problem of a complex working medium supply system in engineering. Therefore, we propose large-spot laser ablation with a one-dimensional supply mode. In order to verify
Mingyu Li +6 more
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Domain‐specific impulsivity in school‐age children [PDF]
Developmental Science, 2013 AbstractImpulsivity is a salient individual difference in children with well‐established predictive validity for life outcomes. The current investigation proposes that impulsive behaviors vary systematically by domain. In a series of studies with ethnically and socioeconomically diverse samples of middle school students, we find that schoolwork‐related
Eli, Tsukayama +2 more
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Reference values of impulse oscillometric lung function indices in adults of advanced age. [PDF]
, 2013 Impulse oscillometry (IOS) is a non-demanding lung function test. Its diagnostic use may be particularly useful in patients of advanced age with physical or mental limitations unable to perform spirometry.
Wichmann, Heinz-Erich +53 more
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Zhongguo Jianchuan Yanjiu, 2019 [Objectives]The influence of the explosion venting plate thickness on the effect of the venting in the new type broadside structure adopted by the DDG 1000 destroyer is studied in this paper.[Methods] First,the reliability of the simulation method was ...
Zhao Pengduo +5 more
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