Results 141 to 150 of about 67,013 (310)

Europium‐ and dysprosium‐modified strontium aluminate: A luminescent marker system for enhanced gunshot residue detection

open access: yesJournal of Forensic Sciences, EarlyView.
Abstract Forensic ballistics is essential in analyzing evidence from firearm use in criminal investigations, with gunshot residue (GSR) detection providing key information about the firearm and shooting conditions. Traditional methods like spectroscopy and scanning electron microscopy (SEM) have limitations in sensitivity, cost, and accessibility ...
Paulo Tonin   +2 more
wiley   +1 more source

Developing Workforce Capability in the Context of HR Ecosystem Learning

open access: yesHuman Resource Management Journal, EarlyView.
ABSTRACT For many organizations, developing workforce capabilities is central as it involves refining critical human resource processes such as upskilling or the acquisition of new profiles. These processes are becoming increasingly complex to manage as organizations collaborate within larger work ecosystems. Surprisingly, little research has addressed
Sophie D'Armagnac   +3 more
wiley   +1 more source

Liquid rocket performance computer model with distributed energy release Interim final report, 15 Aug. 1969 - 15 Aug. 1970 [PDF]

open access: yes
Liquid propellant rocket engine performance computer program with distributed energy ...
Campell, D. T.   +2 more
core   +1 more source

Rendezvous in Space: Tech Diplomacy and the Commercial Space Era—A Study of Rendezvous and Docking Technologies and Space Exploration Co‐Operation Since the Cold War

open access: yesGlobal Policy, EarlyView.
ABSTRACT On‐orbit rendezvous and docking constitute one of the most technically challenging activities in the history of space activities. As space endeavours mature to crewed missions, space rendezous and docking technologies (RDT) emerge as an area of technological innovation critical to advances in future crewed space exploration.
Nikita Chiu, Markus Kornprobst
wiley   +1 more source

Ceramic composites for rocket engine turbines [PDF]

open access: yes
The use of ceramic materials in the hot section of the fuel turbopump of advanced reusable rocket engines promises increased performance and payload capability, improved component life and economics, and greater design flexibility.
Eckel, Andrew J., Herbell, Thomas P.
core   +1 more source

Multiplying Elements of Fragmentation? Polycentrism, the Launcher Crisis and the Future of Europe in Space

open access: yesGlobal Policy, EarlyView.
ABSTRACT This article explores the current controversies surrounding the European Ariane launcher and its implications for the future of European space governance. The Ariane program, historically a symbol of European technopolitical integration, faces mounting challenges due to delays, rising costs and increasing competition from private actors like ...
Nina Klimburg‐Witjes, Joseph Popper
wiley   +1 more source

FLASHING BEHAVIOR OF ROCKET ENGINE PROPELLANTS

open access: yesAtomization and Sprays, 2015
Lamanna, G.   +7 more
openaire   +2 more sources

Police department design, political pressure, and racial inequality in arrests

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract This paper theorizes a source of bias in discretionary arrests: strategic limits on police officer learning. Officers have a variety of tactics at their disposal besides arrest that they use for less serious offenses when they judge the underlying behavior to be less severe. In departments led by a chief with special expertise in crime control,
Andrew J. McCall
wiley   +1 more source

InterPLAY: A Framework to Describe Play and STEM Engagement at Exhibits for Young Children

open access: yesCurator: The Museum Journal, EarlyView.
ABSTRACT Play‐based STEM learning at exhibits is a feature of children's museums and science centers; yet little is known about how these exhibits support young children's STEM engagement. This study developed and tested the interPLAY Framework to describe play‐based STEM engagement at exhibits for young children.
Kelly L. Hoke   +4 more
wiley   +1 more source

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