Results 31 to 40 of about 66,597 (309)
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
Tin Oxide‐Anchored MXene Composites for Enhanced Hydrogen Evolution in Alkaline Media
Advanced Materials Interfaces, EarlyView.The schematic illustrates a SnO2/MXene heterostructure for efficient hydrogen evolution. SnO2 nanoparticles are uniformly anchored on conductive MXene nanosheets, enhancing charge transfer and catalytic activity. The MXene substrate provides high electrical conductivity and abundant active sites, while SnO2 facilitates water adsorption and dissociation.
Pratik Shinde +8 more
wiley +1 more source
Angewandte Chemie, EarlyView.Compositionally engineered mixed solvated cocrystals enable modulation of thermosalient actuation. Guest ratio controls thermosalient temperature and propulsion intensity, providing a tunable platform for designing crystalline systems that exhibit stimuli‐responsive mechanical motion.
Ernesto A. Hernández‐Morales +5 more
wiley +2 more sources
Batteries, 2023 Remaining useful life (RUL) prediction has become one of the key technologies for reducing costs and improving safety of lithium-ion batteries. To our knowledge, it is difficult for existing nonlinear degradation models of the Wiener process to describe ...
Kangze Su +6 more
doaj +1 more source
Investigation of a Radial Turbines Compatibility for Small Rocket Engine [PDF]
E3S Web of Conferences, 2020 In the radial turbine preliminary design for an expander rocket engine, a comparison was made with axial turbine used in Pratt & Whitney RL10 engine. One of the primary requirements of a liquid propellant rocket engine is the generation of a high thrust,
Leto Angelo
doaj +1 more source
Cross‐Scale Hierarchical Targeted Delivery System Based on Small‐Scale Magnetic Robots
Advanced Robotics Research, EarlyView.This article reviews a cross‐scale hierarchical targeted delivery system that integrates magnetic continuum robots and magnetic microrobots. By combining rapid long‐range navigation with precise microscale targeting, the system overcomes key limitations of single‐scale approaches.
Junjian Zhou +4 more
wiley +1 more source
Polymer Testing, 2023 In order to study the macroscopic mechanical properties and meso damage mechanism of solid fuel hydroxy-terminated polybutadiene (HTPB) propellant under low temperature and dynamic biaxial compression loading, the INSTRON high strain rate hydraulic ...
Tingjing Geng +5 more
doaj +1 more source
Supersonic-combustion rocket [PDF]
, 1973 A supersonic combustion rocket is provided in which a small rocket motor is substituted for heavy turbo pumps in a conventional rocket engine. The substitution results in a substantial reduction in rocket engine weight. The flame emanating from the small
Franciscus, L. C., Weber, R. J.
core +1 more source
Heuristically Adaptive Diffusion‐Model Evolutionary Strategy
Advanced Science, EarlyView.Building on the mathematical equivalence between diffusion models and evolutionary algorithms, researchers demonstrate unprecedented control over evolutionary optimization through conditional diffusion. By training diffusion models to associate parameters with specific traits, they can guide evolution toward solutions exhibiting desired behaviors ...
Benedikt Hartl +3 more
wiley +1 more source
Apparatus and method for protecting a photographic device Patent [PDF]
, 1970 Camera protecting device for use in photographing rocket engine nozzles or other engine ...
Bailey, R. L., Tibbitts, W. C.
core +1 more source