Results 11 to 20 of about 87,896 (266)
A Characterized Status Report on Pulse Detonation Engine [PDF]
INCAS Bulletin, 2019 Pulse Detonation Engine (PDE), is an exciting propulsion technology for the future and has been able to seek considerable attention over the last era. It has the potential to work efficiently in the modern cosmos.
Bharat Ankur DOGRA +2 more
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Context Specificity in Stability of Hyperactivity–Impulsivity [PDF]
European Journal of Personality, 2010 This paper exemplifies a secondary data analysis of context–specific differences in children's hyperactivity–impulsivity while controlling for informant–specific effects. Participants were boys and girls from the NICHD Study of Early Child Care and Youth Development whose behaviours were measured in 1st, 3rd and 5th grades.
J, Kim +3 more
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The energy potential of some high-enthalpy N-oxides as oxidizers [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2018 The energy abilities of solid composite propellants based on a couple of new high-enthalpy N-oxides (furazano-terazine-dioxide and tetrazino-tetrazine-1,3,6,8-tetraoxide) have been considered, it is found that these two compounds show record energy ...
D. B. Lempert +2 more
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Using the Impulse Method to Determine High-Pressure Dynamic Burning Rate of Solid Propellants
Aerospace, 2023 A new method for determining the burning rate of a solid propellant, called the Impulse Method, is proposed in this paper. It is based on the proportional relationship between the impulse generated and the mass of the burned propellant. The pressure–time
Jiahao Liu +3 more
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MODIFICATION OF THE ENERGY-SATURATED HETEROGENEOUS COMPOSITE MATERIAL BY CYCLIC NITRAMINES
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018 Several methods have been described for increasing the main characteristics (density, heat of combustion, combustion temperature, gas formation index) and operating properties (combustion speed and temperature, total and specific impulse, properties of ...
A. Ph. Ilyushchanka +2 more
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Pulsed Detonation Hydroramjet: Design Optimization
Journal of Marine Science and Engineering, 2022 A new type of marine transportation engine, the pulsed detonation hydroramjet (PDH), which was first designed, manufactured, and tested by the present authors, has been further investigated in terms of the potential improvement of its propulsive ...
Sergey M. Frolov +5 more
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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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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
doaj
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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