Results 51 to 60 of about 11,718 (221)
Investigation of the existing methods for designing pre-combustion chambers in hybrid rocket engines
Авіаційно-космічна техніка та технологіяHybrid propellant rocket engines (HPRE) have been under development and advancement since the beginning of rocket propulsion research, alongside liquid and solid propellant rocket motors.
Maurício Sá Gontijo
doaj +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen +11 more
wiley +1 more source
Energies, 2011 Hybrid Propulsion is an attractive alternative to conventional liquid and solid rocket motors. This is an active area of research and technological developments.
Vasily Novozhilov +5 more
doaj +1 more source
The Monetary Policy–Commodities Nexus: A Survey
Journal of Economic Surveys, Volume 40, Issue 2, Page 1050-1082, April 2026.ABSTRACT This survey synthesizes evidence on the bidirectional links between commodity markets and monetary policy. On the commodities‐to‐policy side, we review how shocks to energy, food, and metals pass through to inflation, inflation expectations, economic activity, and financial stability in state‐dependent ways that vary by shock type, exposure ...
Martin T. Bohl +2 more
wiley +1 more source
Dynamic Testing of a Hybrid-Propellant Water-Breathing Ram Rocket in Underwater Cruise Conditions
Journal of Marine Science and EngineeringHigh-speed submerged marine vehicles, such as torpedoes, traveling at velocities of an order of 100 m/s and above, require powerful propulsion to overcome the tremendous hydrodynamic drag.
Sagi Dinisman +2 more
doaj +1 more source
Hybrid Rocket Engine Ignition and Control [PDF]
, 2020 Control of a hybrid rocket engine is dependent upon a robust system capable of executing commands at precise times. In order to accomplish this, hardware systems must be in place to control the flow of a pressurized gas and provide feedback to launch ...
Blampied, Trevor +3 more
core +1 more source
Studies in Ethnicity and Nationalism, Volume 26, Issue 1, Page 194-204, April 2026.ABSTRACT This article examines the Turkish state's Village Guard system, revived in the 1980s as part of its counterinsurgency strategy against the Kurdistan Workers Party (PKK). While often framed as a defensive militia, the Village Guards became central to the state's exceptional governance in Kurdistan, both facilitating military control and ...
Francis O'Connor +3 more
wiley +1 more source
Advanced Science, Volume 13, Issue 18, 27 March 2026.Inspired by nature's competitive maneuvers, this study introduces a combustion‐driven soft actuator that powers a multi‐modal “Jump‐and‐Fly Catbot” (JFC). With millisecond response, high‐force output (over 70 times its weight) and precise control (error within 5%), the robot can jump, fly, hover, and escape from challenging environments, achieving ...
Hongkuan Ma +4 more
wiley +1 more source
Boosting Green Propellants: The Sustainable Armored Grain for Hybrid Rocket Propulsion
, 2023 In the last years, the armored grain, a paraffin-based fuel reinforced by a 3D-printed polymeric gyroidlike reinforcement, has been identified as a promising fuel for hybrid rocket engines. In this work, the already promising armored grain concept is improved by developing a greener version.
Bisin, R., Pagliacci, V., Paravan, C.
openaire +2 more sources
Experimental investigation of paraffin-based fuels for hybrid rocket propulsion [PDF]
Progress in Propulsion Physics, 2013 Solid fuels for hybrid rockets were characterized in the framework of a researchprojectaimedtodevelopanewgenerationofsolidfuels,combining at the same time good mechanical and ballistic properties. Original techniques were implemented in order to improve para©n-based fuels.
GALFETTI, LUCIANO +4 more
openaire +1 more source