Results 61 to 70 of about 863,762 (375)
Lived experiences of utilities‐based indebtedness in Greece: Tracing the afterlives of austerity
The Geographical Journal, EarlyView., 2023 Abstract During the past decade, Greece has been a hotbed of crisis and austerity. Unsurprisingly, austerity and counter‐austerity politics captured academic and public attention. This paper seeks to contribute to discussions on the articulations and legacies of austerity in Greece, and beyond, by emphasising questions of reproduction.
Aliki Koutlou
wiley +1 more source
Rocket engine injector Patent [PDF]
, 1968 Rocket engine injector orifice to accommodate changes in density, velocity, and pressure, thereby maintaining constant mass flow rate of propellant into rocket combustion ...
Stein, S.
core +1 more source
Overview of rocket engine control [PDF]
AIP Conference Proceedings, 1992 This paper broadly covers the issues of Chemical Rocket Engine Control. The basic feedback information and control variables used in expendable and reusable rocket engines, such as the Space Shuttle Main Engine are discussed. The deficiencies of current approaches are considered and a brief introduction to Intelligent Control systems for rocket engines
Jeffrey L. Musgrave, Carl F. Lorenzo
openaire +2 more sources
Parametric Simulation Study of Liquid Film Cooling of Hydrocarbon Liquid Rocket Engine
AerospaceThe hydrocarbon liquid rocket engine working environment is harsh; the thrust chamber needs to withstand high temperatures and a high-pressure working environment, and the thrust chamber wall material is difficult to bear, so it is necessary to design ...
Huixin Yang +3 more
doaj +1 more source
Advanced Energy and Sustainability Research, EarlyView.This review highlights recent advancements in converting lignocellulosic biomass to fuel precursors. It emphasizes the role of FUR and 2‐methylfuran in aldol condensation and hydroxyalkylation–alkylation reactions. The article discusses their efficiency, potential applications, and emerging technologies that promise cleaner and more sustainable energy ...
Errol D. Saluta +2 more
wiley +1 more source
Spherical solid-propellant rocket motor Patent [PDF]
, 1961 Spherical solid propellant rocket engine ...
Styles, C. M. +2 more
core +1 more source
Advanced Physics Research, EarlyView.In order to conveniently test the accuracy of the optoelectronic velocity measuring system. This paper proposes a method for simulating the generation of the optical signals for projectile passing through the target by the acoustooptic modulation technology.
Wenbo Chu +6 more
wiley +1 more source
FREQUENCY PREDICTION OF STAGED COMBUSTION ROCKET ENGINE BASED ON RBF NEURAL NETWORK
Jixie qiangdu, 2015 In order to avoid creating or modifying the huge amount of finite element model of the rocket engine,application of the RBF（ radial basis function） neural network which was used to predict structural frequency of the liquid rocket engine was analyzed.
DU FeiPing, TAN YongHua, CHEN JianHua
doaj
The Value Chain of Sustainable Dual Carbon Sodium Ion Capacitors
Batteries &Supercaps, EarlyView.Sodium‐ion capacitors (SICs) bridge the energy‐power gap between batteries and supercapacitors, offering sustainable and scalable energy storage solutions. This review provides a 360‐degree perspective on SIC technology, covering material choices, presodiation strategies, manufacturing challenges, applications and life cycle assessment to ensure ...
Roman Mysyk +23 more
wiley +1 more source