Results 61 to 70 of about 17,189 (237)
Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.ABSTRACT The invasive kariba weed (Salvinia molesta) has severely degraded aquatic ecosystems in Uganda's Kyoga basin lakes and Kibimba Dam, disrupting fisheries, navigation and community livelihoods. Between 2017 and 2021, the National Agricultural Research Organisation implemented a biological control program using the host‐specific weevil ...
Irene Bayiyana +6 more
wiley +1 more source
Effect of cyclic loads on structural damage of rocket propellant grain [PDF]
Scientific Technical Review, 2019 Rocket motor propellant grain, cast or bonded into the motor chamber or solid coating, is exposed to various loads during its service life. Rocket propellant is a viscoelastic material, whose mechanical properties strongly depend on temperature and ...
Gligorijević Nikola +5 more
doaj
Overview of Al-based nanoenergetic ingredients for solid rocket propulsion
Defence Technology, 2018 The introduction of nano-sized energetic ingredients first occurred in Russia about 60 years ago and arose great expectations in the rocket propulsion community, thanks to the higher energy densities and faster energy release rates exhibited with respect
Luigi T. DeLuca
doaj +1 more source
Aerospace, 2020 Electric solid propellants are advanced solid chemical rocket propellants that can be controlled (ignited, throttled and extinguished) through the application and removal of an electric current.
Matthew S. Glascock +2 more
doaj +1 more source
Some aspects of rocket propellant performances and solid rocket propellant development tendencies [PDF]
Vojnotehnicki glasnik, 2004 In order to increase pay loads in missile systems, research work in the domain of rocket propellants concentrates on conquering new, high-energy compositions providing a greater volume specific impulse. A short survey of rocket propellant development up to present days is followed by the most recent achievements in enhancing energy characteristics of ...
openaire +1 more source
International Journal of Applied Ceramic Technology, Volume 23, Issue 2, April 2026.This graphical abstract illustrates the systematic investigation of Spark Plasma Sintering (SPS) parameters, temperature, pressure, and dwell time, on the densification and mechanical performance of ZrB2–20 vol% SiC composites. It highlights the critical influence of powder processing history (WC vs.
Prakhar Jindal +5 more
wiley +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
Viscoelastic propellant effects on Space Shuttle Dynamics [PDF]
The program of solid propellant research performed in support of the space shuttle dynamics modeling effort is described. Stiffness, damping, and compressibility of the propellant and the effects of many variables on these properties are discussed.
Bugg, F.
core +1 more source
Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira +4 more
wiley +1 more source
Crater Observing Bioinspired Rolling Articulator (COBRA)
Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.Crater Observing Bio‐inspired Rolling Articulator (COBRA) is a modular, snake‐inspired robot that addresses the mobility challenges of extraterrestrial exploration sites such as Shackleton Crater. Incorporating snake‐like gaits and tumbling locomotion, COBRA navigates both uneven surfaces and steep crater walls.
Adarsh Salagame +4 more
wiley +1 more source