Results 91 to 100 of about 40,392 (313)
Defence Technology3D printing technology enhances the combustion characteristics of hybrid rocket fuels by enabling complex geometries. However, improvements in regression rates and energy properties of monotonous 3D printed fuels have been limited.
Qihang Chen +8 more
doaj +1 more source
A Soviet quasi-market for inventions : jet propulsion, 1932–1946 [PDF]
This paper is about how a command system allocated resources under profound uncertainty. The command system was the Soviet economy, the period was Stalin's dictatorship, and the resources were designated for military research & development.
Harrison, Mark
core +1 more source
Creativity and Innovation Management, EarlyView.ABSTRACT Geopolitical uncertainties and the resurgence of security and defence needs present both opportunities and challenges for creativity and innovation management. At both the organizational and the individual levels, we are confronted with multiple ethically challenging choices. Given the changing global security and defence realities, we outline
Mette Præst Knudsen +4 more
wiley +1 more source
The Monetary Policy–Commodities Nexus: A Survey
Journal of Economic Surveys, EarlyView.ABSTRACT This survey synthesizes evidence on the bidirectional links between commodity markets and monetary policy. On the commodities‐to‐policy side, we review how shocks to energy, food, and metals pass through to inflation, inflation expectations, economic activity, and financial stability in state‐dependent ways that vary by shock type, exposure ...
Martin T. Bohl +2 more
wiley +1 more source
Preliminary analysis of space mission applications for electromagnetic launchers [PDF]
The technical and economic feasibility of using electromagnetically launched EML payloads propelled from the Earth's surface to LEO, GEO, lunar orbit, or to interplanetary space was assessed.
Conlon, R. J. +3 more
core +1 more source
Disconsolate Suffering: Joe Sacco's Comics Journalism and the Ambivalence of Humanitarian Witnessing
The Journal of Popular Culture, EarlyView.ABSTRACT Through a close reading of Joe Sacco's seminal work of graphic journalism, Palestine, this article argues that Sacco unsettles the consoling effects of mass media by disrupting dominant narratives of difference, otherness, and spectacularized violence.
Bryant Scott
wiley +1 more source
Image analysis for velocity profile estimation in A-SOFT hybrid rocket combustor
Journal of Fluid Science and Technology, 2018 Altering-intensity Swirling-Oxidizer-Flow-Type (A-SOFT) hybrid rocket engine (HRE) was proposed as a technique to solve problems of current hybrid rockets.
Nobuhiro KIMURA +3 more
doaj +1 more source
Hybrid Propulsion Technology Program [PDF]
Future launch systems of the United States will require improvements in booster safety, reliability, and cost. In order to increase payload capabilities, performance improvements are also desirable.
Holzman, A. L., Jensen, G. E.
core +1 more source
Experimental Flow Investigation of a Truncated Ideal Contour Nozzle [PDF]
, 2006 Various tests showed a significant side load peak for low nozzle pressure ratios during engine start-up and shut down phase. DLR Lampoldshausen carried out tests to examine the flow field in a truncated ideal contour nozzle for low NPR.
Stark, Ralf, Wagner, Bernd
core +1 more source
An Agile Approach to Sourcing Solutions: Embracing Uncertainty for Strategic Relevance
Journal of Supply Chain Management, EarlyView.ABSTRACT This study examines agile sourcing, an emerging approach to procurement that deliberately incorporates uncertainty to address business challenges. Guided by a critical realist ontology and framing agile sourcing as an information‐processing issue, this study explores the generative mechanisms that enable organizations to manage the deliberate ...
Anna Aminoff +3 more
wiley +1 more source