Results 101 to 110 of about 40,392 (313)
HYBRID ROCKET ENGINE TEST FACILITY DESIGN
Hybrid rocket engines is relatively less researched subject of chemical rockets. Using fuel and oxidizer in different phases hybrids are safe and cheap. Yet, they are not generating enogh thrust to deliver heavy payloads to edge of space.
Ali Emre Samur +2 more
doaj
Hybrid propulsion technology program: Phase 1. Volume 3: Thiokol Corporation Space Operations [PDF]
Three candidate hybrid propulsion (HP) concepts were identified, optimized, evaluated, and refined through an iterative process that continually forced improvement to the systems with respect to safety, reliability, cost, and performance criteria. A full
Schuler, A. L., Wiley, D. R.
core +1 more source
Effects of Cosmic String Velocities and the Origin of Globular Clusters
With the hypothesis that cosmic string loops act as seeds for globular clusters in mind, we study the role that velocities of these strings will play in determining the mass distribution of globular clusters.
Brandenberger, Robert +2 more
core +1 more source
Sampling the volcanic plumes at Io: Impact speeds and shock conditions
Abstract The desire to sample material from the interior of Io, by flying through its volcanic plumes, requires consideration of the flyby speed and the types of sample collection techniques that can be utilized. Low speed collection (1–2.5 km s−1) would require an orbit around Io itself, which is unlikely due to the accumulated radiation dose that ...
M. J. Burchell +2 more
wiley +1 more source
Resupply/repair of solid or hybrid attitude propulsion subsystems. Volume 1 - Program summary Final report, 1 Jul. - 31 Dec. 1970 [PDF]
Optimum methods for orbital resupply, maintenance, and repair of hybrid propellant rocket engine subsystem for orbiting space station attitude ...
Murphy, J. M.
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
ABSTRACT This article examines the Turkish state's Village Guard system, revived in the 1980s as part of its counterinsurgency strategy against the Kurdistan Workers Party (PKK). While often framed as a defensive militia, the Village Guards became central to the state's exceptional governance in Kurdistan, both facilitating military control and ...
Francis O'Connor +3 more
wiley +1 more source
Chemically controlled deposition of the prototypical hybrid halide perovskite methylammonium triiodoplumbate(II), MAPI, is demonstrated in layer by layer fashion from the solution phase. Theoretical modeling confirms the accretion mechanism. Extensive materials and functional characterization highlight how chemical control of nucleation and growth ...
Vanessa M. Koch +29 more
wiley +1 more source
Comparison of cylindrical and non-cylindrical grain internal ballistic behavior of hybrid rocket engines and solid rocket motors [PDF]
Zhiliu Lu
openalex +1 more source

