Results 151 to 160 of about 2,583,997 (256)

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

School Science and Mathematics, Volume 126, Issue 5, Page 480-490, October 2026.
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

A 400‐Year Antarctic Ice‐Core Perchlorate Record Reveals Variability in Stratospheric Chlorine Chemistry

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Perchlorate (ClO4−) in polar ice preserves past chlorine oxidation chemistry; however, multi‐centennial Antarctic ClO4− records and the mechanisms controlling their variability remain poorly constrained. Here, we present the first 400‐year (1616−2016) ClO4− record from an Antarctic ice core, revealing two regimes separated around 1980.
Wenzhi Zhou, Su Jiang, Zhe Li, Bo Zhang, Danhe Wang, Dongqi Wang, Guitao Shi   +6 more
wiley   +1 more source

Design, Fabrication, and Testing of a 3D-Printed Model Rocket with Integrated Telemetry Systems. [PDF]

Sensors (Basel)
Moschidis PG, Bithas PS, Meyer F.
europepmc   +1 more source

Investigation on the Structural Integrity of Solid Propellant Grains with Different-Sized Void Defects. [PDF]

Materials (Basel)
Wang J, Liu K, Xu T, Du J, Liang Y, Li W, Cao P.   +6 more
europepmc   +1 more source

Mesoscopic Damage Characteristics of NEPE Propellant Under Drop-Weight Impact. [PDF]

Materials (Basel)
Zhang Z, Sun Z, Liu Y, Zhu Y, Hu Y.
europepmc   +1 more source

Design of an onboard computer for small experimental rockets with an integrated hardware-in-the-loop validation framework. [PDF]

HardwareX
Netzel NA, Rosa LG, Granziera F, Tosin MC, Batista DS.   +4 more
europepmc   +1 more source

Study on Creep Mechanical Properties of HTPB Solid Propellant. [PDF]

Materials (Basel)
Jin L, Jia S, Zhang Z, An Z, Lu Z.
europepmc   +1 more source

Numerical Simulation Study on Residual Stress and Strain in the Curing and Molding of HTPB Two-Stage Solid Propellant. [PDF]

Polymers (Basel)
Chang J, Xu C, Dai Y.
europepmc   +1 more source

Impact of Selected Metal Oxides on the Thermodynamics of Solid Rocket Propellant Combustion. [PDF]

Molecules
Janowska K, Waśkiewicz S, Skóra P, Hawelek L, Prasuła P, Jarosz T, Stolarczyk A.   +6 more
europepmc   +1 more source

Stability of Medicinal Nanoemulsions to Spaceflight: Insights From the StarMed Experiment. [PDF]

Adv Healthc Mater
Adebowale M, Long NVD, Williams PM, Hauslage J, Hessel V.   +4 more
europepmc   +1 more source