Results 171 to 180 of about 67,013 (310)

A resonance-tube igniter for hydrogen-oxygen rocket engines [PDF]

Resonance-tube igniter for hydrogen-oxygen rocket ...
Conrad, E. W., Pavli, A. J.
core   +1 more source

Unveiling Lasting Impact: A Cultural‐Historical Activity Theory Perspective on Original Participants in an Afterschool STEM Club

School Science and Mathematics, EarlyView.
ABSTRACT The Girls Excelling in Math and Science (GEMS) club is a long‐standing afterschool STEM program (1994–present). The study investigates the features of GEMS by exploring retrospective experiences of a group of original GEMS girls (OGGs) who attended GEMS in 1994–1995. Survey data were collected from 14 OGGs and in‐depth interview data from nine
Lili Zhou
wiley   +1 more source

Oxygen difluoride/diborane technology vacuum ignition, phase 2 Quarterly report, 15 Jul. - 14 Oct. 1969 [PDF]

Vacuum ignition characteristics of rocket engine using oxygen difluoride-diborane ...
Mistler, G. R.
core   +1 more source

Narrative reconstruction of the self: Living funerals as rituals of trauma and transformation

The Australian Journal of Anthropology, EarlyView.
Abstract Living funerals mark a radical reconfiguration of contemporary engagements with mortality, transforming death from an imposed ending into an actively authored narrative. This study examines the practice in Hong Kong's hybrid sociocultural landscape, where traditional Chinese death rituals collide with neoliberal selfhood and globalised ...
Yuen‐Ki Tang
wiley   +1 more source

Second 260-Inch Solid Motor Set for Test Firing [PDF]

Second 260-inch diameter solid propellant rocket engine set for test ...

core   +1 more source

State of the AI: Post-Deployment Monitoring of Radiology-Focused Internally Developed AI. [PDF]

Mayo Clin Proc Digit Health
Cook CJ, Klug JR, Kandler BW, Baez-Suarez A, Dachowicz AP, Blezek DJ, Missert AD, Conte GM, Benfield JD, Mensing-Diggs A, Edwards MT, Powell MA, Sheedy EN, Meyer HM, Melnick J, Flor BF, Vidal DE, Sorin V, Erdal BS, Langer SG, Collins JD, Williamson EE, Korfiatis P, Kline TL.   +23 more
europepmc   +1 more source

Advanced Earth-to-orbit propulsion technology program overview: Impact of civil space technology initiative [PDF]

The NASA Earth-to-Orbit (ETO) Propulsion Technology Program is dedicated to advancing rocket engine technologies for the development of fully reusable engine systems that will enable space transportation systems to achieve low cost, routine access to ...
Stephenson, Frank W., Jr.
core   +1 more source

Our AI-Powered Discoveries Are Trapped in a Predigital System. [PDF]

J Med Internet Res
Chew BH.
europepmc   +1 more source

A dynamic simulation approach to optimize thrust regulation in electric pump-fed rocket engines. [PDF]

Sci Rep
Li T, He H, Yu N, Sun X, Cai G.
europepmc   +1 more source

Erosion of granular sediments by submerged impinging jets: Particle size effects and cohesion onset

AIChE Journal, Volume 72, Issue 6, June 2026.
Abstract This study investigates the erosion behavior and modeling of glass particle beds under impinging jet conditions, with a focus on particle size effects and the onset of cohesion. Ultrasonic profiling is implemented to scan and measure static crater profiles.
Ahmad Mohamadiyeh, Jeffrey Peakall, Michael Fairweather, Martyn Barnes, Timothy N. Hunter   +4 more
wiley   +1 more source