Results 71 to 80 of about 16,009 (301)

The issue of ensuring the safe explosion of the spent orbital stages of a launch vehicle with propulsion rocket engine

open access: yesMATEC Web of Conferences, 2017
A method for increasing the safe explosion of the spent orbital stages of a space launch vehicle (SLV) with a propulsion rocket engine (PRE) based on the gasification of unusable residues propellant and venting fuel tanks.
Trushlyakov Valeriy I.   +1 more
doaj   +1 more source

The Ultimate Limits of the Relativistic Rocket Equation. The Planck Photon Rocket [PDF]

open access: yesActa Astronautica, Vol. 136, July 2017, Pages 144-147, 2018
In this paper we look at the ultimate limits of a photon propulsion rocket. The maximum velocity for a photon propulsion rocket is just below the speed of light and is a function of the reduced Compton wavelength of the heaviest subatomic particles in the rocket. We are basically combining the relativistic rocket equation with Haug's new insight on the
arxiv  

Advancements in liquid marbles as an open microfluidic platform: Rapid formation, robust manipulation, and revolutionary applications

open access: yesDroplet, Volume 4, Issue 2, April 2025.
A sessile LM‐shaped microdroplet system, featuring by three logical internal layers that represent rapid formation, robust manipulation, and revolutionary applications respectively. Abstract Liquid marbles (LMs) have become a focal point in microfluidics for their efficient manipulation of small liquid volumes.
Tong Tong   +3 more
wiley   +1 more source

Modeling of Shutdown Process in Liquid Propellant Rocket Engines [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2014
The effects of liquid propellant rocket engines thrust termination transients are important in achieving the launch vehicle’s desired final velocity with the required precision.
M. Shafiey Dehaj   +4 more
doaj  

Introduction to the Special Issue on Sounding Rockets and Instrumentation [PDF]

open access: yesarXiv, 2016
Rocket technology, originally developed for military applications, has provided a low-cost observing platform to carry critical and rapid-response scientific investigations for over 70 years. Even with the development of launch vehicles that could put satellites into orbit, high altitude sounding rockets have remained relevant.
arxiv  

Liquid directional transport surface applied to the spacecraft fluid management system: Fundamentals and prospect analysis

open access: yesDroplet, Volume 4, Issue 2, April 2025.
Based on the analysis of the existing liquid oriented transport surface under gravity, this review analyzes the feasibility of applying the liquid oriented transport surface to the spacecraft fluid management device by summarizing its transport principle and combining with the existing application environment of the spacecraft fluid management device ...
Yifan He   +7 more
wiley   +1 more source

Launch vehicle performance using metallized propellants [PDF]

open access: yes
Metallized propellant propulsion systems are considered as replacements for the solid rocket boosters and liquid sustainer stages on the current launch vehicles: both the Space Transportation System (STS) and the Titan 4.
Palaszewski, Bryan A., Powell, Richard
core   +1 more source

Dinitroacetylene: Can It be Made?

open access: yesPropellants, Explosives, Pyrotechnics, Volume 50, Issue 4, April 2025.
With a predicted record‐high heat of formation, energy density, and outstanding performance as a rocket propellant, dinitroacetylene stretches the imagination for what is possible in terms of organic chemical explosives and monopropellants. In this study, we employ quantum chemical methods to assess the isolability and kinetic stability of this ...
Lara Harter   +2 more
wiley   +1 more source

Animal Models of Traumatic Brain Injury and Their Relevance in Clinical Settings

open access: yesCNS Neuroscience &Therapeutics, Volume 31, Issue 4, April 2025.
Traumatic brain injury (TBI) is a significant global health concern. Animal models are crucial for understanding the complex pathophysiology of TBI and developing effective treatments. This review explores common animal models of TBI, assessing their strengths and limitations in mimicking human injury.
Payal Chauhan   +11 more
wiley   +1 more source

Propellent mass distribution metering apparatus Patent [PDF]

open access: yes, 1969
Electronic recording system for spatial mass distribution of liquid rocket propellant droplets or vapors ejected from high velocity ...
Ayvazian, R. A.
core   +1 more source

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