Results 91 to 100 of about 2,308,912 (234)
MORABA - Overview on DLR's Mobile Rocket Base and Projects [PDF]
Mobile Rocket Base (MORABA), a division of the Space Operations and Astronaut Training Department of DLR (Deutsches Zentrum für Luft- und Raumfahrt) provides the national and international scientific community with the opportunity to prepare and ...
Turner, Peter +5 more
core +1 more source
ABSTRACT This paper critically examines the conceptual overstretch of weaponized interdependence (WI) in analyses of China's dominance over lithium and rare‐earth element (REE) markets. Although WI has become a central framework for interpreting EU–China economic relations, its application to raw materials often extends beyond the theory's original ...
Lucas Miailhes
wiley +1 more source
Status of Axisymmetric CFD of an Eleven Inch Diameter Hybrid Rocket Motor [PDF]
Current status of a steady state, axisymmetric analysis of an experimental 11 inch diameter hybrid rocket motor internal flow field is given. The objective of this effort is to develop a steady state axisymmetric model of the 11 inch hybrid rocket motor ...
Sullivan, Matthew R. +2 more
core
Regression Rate Study in HTPB/GOX Hybrid Rocket Motors.
The theoretical and experimenIal studies on hybrid rocket motor combustion research are briefly reviewed and the need for a clear understanding of hybrid rocket fuel regression rate mechanism is brought out.
Varkey, P. M. +4 more
core +1 more source
Obesity is a chronic, relapsing, multisystem disease in which cardiometabolic risk arises from excess adiposity and progressive dysfunction of peripheral organs, ultimately disrupting endocrine and metabolic crosstalk among tissues. Within this network, sulphur‐based biology, centred on hydrogen sulphide and related reactive sulphur species, has ...
Martina Smimmo +4 more
wiley +1 more source
Design, Manufacture and Experimental Study of a Hydrogen Peroxide-HTPB Hybrid Rocket Motor [PDF]
The application of the hydrogen peroxide as the oxidizer of a HTPB-based prototype hybrid motor is investigated in this paper. First of all, by studying the thermochemical characteristics of the propellant,operation range of different compositions is ...
Hojat Ghassemi +4 more
doaj
C/C-SiC Composites for Nozzle of Solid Propellant Ramjet
Carbon fiber reinforced carbon and silicon carbide matrix composites for nozzle inner of solid propellant ramjet were prepared by using the hybrid process of "chemical vapor infiltration + precursor impregnation pyrolysis (CVI+PIP)".
WANG Lingling +5 more
doaj +1 more source
A Microkrystite from the Australasian Tektite/Microtektite Strewn Field
Abstract Microkrystites are glassy impact spherules. They contain primary crystallites carrying information on the physical and chemical conditions prevailing during vaporization, melting, and ejection in large impact cratering events. We report on the geochemistry and mineralogy down to nanometer scale of the first microkrystite (ODP1144A,14) from the
Matteo Del Rio +4 more
wiley +1 more source
Advancing Europe’s Hybrid Rocket Engine Technology with Paraffin and LOX [PDF]
Hybrid rocket engine technology has been advanced enormously at European universities, research institutions and companies in the last decade. New fuels like paraffin-based mixtures have been developed in order to increase regression rate which enables ...
Schmierer, Christian +5 more
core +1 more source
“Nowhere else to go”: Slow abandonment and (en)closures of long‐term care in Los Angeles
Abstract Residential long‐term care facilities, known in California as “board and care” homes, have been closing rapidly in the last decade. Proponents assert these provide vital forms of housing and care to the poor and must be saved, while critics contend they perpetuate the institutionalization of people with disabilities and should be abolished ...
Maxwell A. Hellmann
wiley +1 more source

