Results 11 to 20 of about 38,278 (273)
CD8+ T cell memory is sustained in mice by hepatic stellate cells
Hepatology, EarlyView., 2022 HSC role in memory CD8+ T cell maintenance. Abstract Background and Aims Long‐lasting immunological memory is the ultimate goal of vaccination. Homeostatic maintenance of memory CD8+ cytotoxic T cells (MemCD8TCs) is thought to be mediated by IL‐15/IL‐15R heterodimer (15HD)‐expressing myeloid cells.
Yi‐Ting Chen +4 more
wiley +1 more source
EROSIVE BURNING IN SOLID PROPELLANT ROCKET MOTORS
Proceeding of Energy and the Environment, 1998, 2023 In the design stage of solid rocket motor, determination of erosive burning effect is essential for today's propulsion engineers. In the present study, erosive burning problem in the solid propellant rocket motors is considered numerically and experimentally.
Gudu, T, Vural, H, Ak, MA
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CFD Analysis of a Solid Propellant Retro Rocket Motor using Ansys Fluent [PDF]
E3S Web of Conferences, 2020 A Solid propellant Retro Rocket Motor with a C-D Nozzle is analyzed using Ansys Fluent 17.1 .Steady State analysis of a retro rocket motor has been done for Viscous models like Inviscid and k-ɛ (Realizable) with air and gas as working fluids.
Anil Hemanth Varada, Jyothi U.S
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Structural integrity analysis and experimental investigation for solid rocket motor grain subjected to low temperature ignition [PDF]
MATEC Web of Conferences, 2019 The structural integrity of solid rocket motor(SRM) grain is severely tested owing to the combined action of low temperature and pressure load under the load case of low temperature ignition.
Shen Zhi-Bin, Zhang Liang, Li Yi-Fei
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Aerospace, 2023 Fused deposition technology (FDM), as an additive manufacturing (AM) technology, holds immense potential in the field of solid grain manufacturing. It can accomplish complex grain shaping with ultra-low-pressure ratios, which are challenging to achieve ...
Shixiong Song +4 more
doaj +1 more source
Launching to an orbit with a chemical propellant staged rocket systems
MANAS: Journal of Engineering, 2022 There is one way to explore space by using the space launch vehicles, which is known as rockets, and it can carry useful load named simply as payload of satelite from Earth into Space.
Erk İnger
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Combustion Modeling in Solid Rocket Motor Plumes [PDF]
, 2019 The thermo-chemistry of plumes emanating from solid rocket motors (SRM) is strongly influenced by hydrogen/oxygen/chlorine chemistry. These after-burning reactions have a significant impact onto the infrared signature, as well as on chemical and thermal loads within the propulsion system.
Ecker, Tobias +2 more
openaire +3 more sources
Influence of pulsed steering engines on the dynamics of a solid-fuel rocket
Авіаційно-космічна техніка та технологія, 2022 The object of this study is a rocket with a solid propellant engine launched from a vehicle launcher. The current work studies the oscillations of a rocket airframe in flight under the influence of impulses of the steering motors and the effectiveness of
Sergey Filipkovsky, Larisa Filipkovskaja
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Rheological Properties of Composite Polymer Liner Based on Hydroxyl‐ Terminated Polybutadiene [PDF]
Journal of Aerospace Technology and Management, 2020 An experimental study to determine the dependence of the viscosity and shear stress of hydroxyl-terminated polybutadiene (HTPB) and dimeryl diisocyanate (DDI) liner on curing time is presented. Viscosity and shear-stress were measured by HAAKE RheoStress
Igor Sapozhnikov, Victor Chernov
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A Model for Igniter Mass Flow Rate History Evaluation for Solid Rocket Motors
International Journal of Aerospace Engineering, 2019 This paper describes a zero-dimensional model for evaluating the mass flow rate history of a solid rocket motor igniter. Based on the results of an igniter-firing experiment, in which the igniter is the only source of combustion gas and no propellant is ...
Yanjie Ma +4 more
doaj +1 more source