Results 41 to 50 of about 4,679 (234)
Hybrid Rocket Motor Scaling Process [PDF]
, 2015 Hybrid rocket propulsion technology shows promise for the next generation of sounding rockets and small launch vehicles. This paper seeks to provide details on the process of developing hybrid propulsion systems to the academic and amateur rocket ...
Vanherweg, Joseph B. R.
core +2 more sources
Hypergolic Copper Cluster‐Based Covalent Organic Frameworks
Advanced Science, EarlyView.Hpergolic cluster‐based covalent organic framework (Cu3‐CB‐COF), assembled from aldehyde‐functionalized carborane monomers and trinuclear copper clusters, demonstrates a strong synergy between its catalytic copper nodes and energetic carborane backbones.
Yu‐Zhou Qiao +5 more
wiley +1 more source
Emerging Memory and Device Technologies for Hardware‐Accelerated Model Training and Inference
Advanced Electronic Materials, EarlyView.This review investigates the suitability of various emerging memory technologies as compute‐in‐memory hardware for artificial intelligence (AI) applications. Distinct requirements for training‐ and inference‐centric computing are discussed, spanning device physics, materials, and system integration.
Yoonho Cho +6 more
wiley +1 more source
Hybrid Rocket Propulsion for Sounding Rocket Applications [PDF]
, 1991 A discussion of the H-225K hybrid rocket motor, produced by the American Rocket Company, is given. The H-225K motor is presented in terms of the following topics: (1) hybrid rocket fundamentals; (2) hybrid characteristics; and (3) hybrid ...
core +1 more source
Hybrid rocket engine design with multi-objective vibrational genetic algorithm [PDF]
, 2017 I n this study, the conceptual design of a single-stage hybrid rocket engine of a low-altitude sounding rocket is developed using the Multi-Objective Vibrational Genetic Algorithm (MOVGA).
Mehmet Burak Ozbilgin +5 more
core +1 more source
Burn Time Correction of Start-Up Transients for CAMUI Type Hybrid Rocket Engine
Aerospace, 2021 Burn time errors caused by various start-up transient effects have a significant influence on the regression modelling of hybrid rockets. Their influence is especially pronounced in the simulation model of the Cascaded Multi Impinging Jet (CAMUI) hybrid ...
Tor Viscor +3 more
doaj +1 more source
Trajectory Estimation for a Hybrid Rocket [PDF]
AIAA Guidance, Navigation, and Control Conference, 2009 This paper presents a research work to develop a navigation technique for a class of nano-micro space rocket. Onboard MEMS inertial sensors are used in view of post-flight trajectory estimation. Combined with synchronized measurements of the combustion engine which is of hybrid type and uses N2O and PE, we show how the relative redundancy of the data ...
Pierre-Jean Bristeau, Nicolas Petit
openaire +1 more source
Deep Underground Science and Engineering, EarlyView.This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh +12 more
wiley +1 more source
Modelling of hybrid rocket flow-fields with computational fluid dynamics [PDF]
, 2022 A low regression rate is a major limitation in the hybrid rocket propulsion system. This paper is to study the regression rate characteristics of a cylindrical solid grain with cryogenic propellants.
Rozainuddin, Nur Husnina Aufa +3 more
core +1 more source
Numerical Simulations of Flow and Fuel Regression Rate Coupling in Hybrid Rocket Motors [PDF]
INCAS Bulletin, 2017 The hybrid propulsion offers some remarkable advantages like high safety and high specific impulse and thus it is considered a promising technology for the next generation launchers and space systems. The purpose of this work is to validate a design tool
Marius STOIA-DJESKA +2 more
doaj +1 more source