Results 41 to 50 of about 30,929 (280)

Design and Test of a Student Hybrid Rocket Engine with an External Carbon Fiber Composite Structure

Aerospace, 2020
The development of hybrid rockets offers excellent opportunities for the practical education of students at universities due to the high safety and relatively low complexity of the rocket propulsion system.
Francesca Heeg, Lukas Kilzer, Robin Seitz, Enrico Stoll   +3 more
doaj   +1 more source

BYU Propulsion Development – Experimental LOX/Paraffin Hybrid Rocket [PDF]

, 2022
The "Blue Jay" is a 12 ft., LOX and paraffin hybrid rocket with a designed total impulse of 20,330 Ns. The rocket will have its maiden flight summer 2022 at the Friends of Amateur Rocketry with a target altitude of 10,000 ft. above ground level. The rocket is expected to weigh around 100 lbs. dry. This is BYU's first hybrid rocket, and one of the first
Davis, Jayson, Stewart, Lincoln, Morse, Logan, Andelin, David, Cook, Joshua, Dover, Brennen, Van Dyke, Cameron, Halverson, Cole, Barnett, Elizabeth, Christie, Eric, Graham, Gerritt, Hansen, Jacob, Metten, Jason, Green, Kendall, Bozer, Matt, Escobar, Oscar, Craven, Samuel, Lyman, Zachary, Payne, Courtney, Larson, Ben, Butterfield, Tyson   +20 more
openaire  

Combustion of Date Stone and Jojoba Solid Waste in a Hybrid Rocket-like Combustion Chamber

Aerospace
The performance of two solid biomass wastes, date stone and jojoba solid waste, was experimentally examined for their potential application in combustion and propulsion systems.
Saleh B. Alsaidi, Jeongmoo Huh, Mohamed Y. E. Selim   +2 more
doaj   +1 more source

Beeswax–EVA/Activated-Charcoal-Based Fuels for Hybrid Rockets: Thermal and Ballistic Evaluation

Energies, 2022
Beeswax (C46H92O) is a naturally derived substance that has the potential to be used as a solid fuel for hybrid rocket applications and as a substitute for paraffin wax fuel in hybrid rockets.
Sri Nithya Mahottamananda, Yash Pal, Mengu Dinesh, Antonella Ingenito   +3 more
doaj   +1 more source

Feline‐Inspired Robot Enabled by Combustion‐Driven Actuators for Agile Motion and High‐Payload Obstacle Traversal

Advanced Science, EarlyView.
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, Yang Yang, Zhiguo He, Hongliang Ren, Pengcheng Jiao   +4 more
wiley   +1 more source

An Application of Analytical Target Cascading for a Hierarchical Multidisciplinary System: The Preliminary Design of a Launch Vehicle Powered by Hybrid Rocket Motors

Aerospace, 2022
Analytical target cascading (ATC) is a method for coordinating hierarchical system design optimization with a decomposition-based framework. Since a launch vehicle (LV) is usually powered by two or more stages of rocket motors, the overall design of the ...
Pengcheng Wang, Weile Xu, Hao Zhu, Hui Tian, Guobiao Cai   +4 more
doaj   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

Advanced Energy and Sustainability Research, EarlyView.
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, Md Mahbubur Rahman, Karib Hassan Khan, Md Nizam Uddin, Dewan Hafiz Nabil   +4 more
wiley   +1 more source

Crater Observing Bioinspired Rolling Articulator (COBRA)

Advanced Intelligent Systems, EarlyView.
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, Henry Noyes, Eric Sihite, Arash Kalantari, Alireza Ramezani   +4 more
wiley   +1 more source

Micro/Nanorobot for Drug Delivery—A Review of Material Selections

Advanced NanoBiomed Research, EarlyView.
This review explores material strategies for biomedical micro/nanorobots, emphasizing their roles in propulsion, navigation, drug delivery, and biodegradability. It highlights advancements in metallic, polymeric, and hybrid materials, while addressing clinical translation challenges such as toxicity, immune response, and manufacturability.
Xiaozhuo Wu, Bingyun Li, Malcolm Xing
wiley   +1 more source

Arrhenius Activation Energy on Viscous and Radiative Heating of Hybridized Chemical Reactive Magnetized‐Casson Nanofluid Flow in Saturated Porous Media With Varied Heat Source/Sink

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT This study analyzes the influence of Arrhenius activation energy on the chemically reactive, magnetohydrodynamic Casson hybrid nanofluid flow past an exponentially stretching surface embedded in a Darcy–Forchheimer porous medium with a non‐uniform heat source/sink.
Md. Sailanebaba, MD. Shamshuddin, S. O. Salawu   +2 more
wiley   +1 more source