Results 171 to 180 of about 8,057 (291)

Calculated concentrations of any radionuclide deposited on the ground by release from underground nuclear detonations, tests of nuclear rockets, and tests of nuclear ramjet engines

, 1981
Harry G. Hicks
openalex   +2 more sources

Strutjet Rocket-Based Combined-Cycle Engine [PDF]

, 2001
Adam Siebenhaar, Mel Bulman, D. K. Bonnar   +2 more
openalex   +1 more source

Integrating Math and Science Through Engineering: Illustrative Examples From Curricula Implementation in Middle School Engineering Classrooms

School Science and Mathematics, EarlyView.
ABSTRACT Engineering has emerged as a promising context for STEM integration in K‐12 schools. In the previous decade, the field has seen an increase in curricular resources and pedagogical approaches that invite students to utilize mathematics and science as they engage in engineering practices.
Jessica Gale, Dyanne Baptiste Porter, Meltem Alemdar, Sunni Newton, Jasmine Choi, Abeera Rehmat, Roxanne Moore   +6 more
wiley   +1 more source

Generation of a 28 GHz annular power distribution with high power gyrotron and its application to microwave driven in tube accelerator. [PDF]

Sci Rep
Takahashi M, Yamada T, Minami R, Kariya T, Shimamura K.   +4 more
europepmc   +1 more source

On possibility to use flow control units of electromagnetic type for liquid propellant rocket engines [PDF]

, 2001
С. А. Шевченко
openalex   +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

Opposition-based chaotic evolution for optimization. [PDF]

Sci Rep
Li T, Pei Y.
europepmc   +1 more source

An analysis of a Rocketdyne report on nuclear rockets entitled, "Complete spectrum of nuclear engines and their capabilities"

, 1960
P. G. Thome
openalex   +1 more source

Multiobjective Optimization of Rocket Engine Pumps Using Evolutionary Algorithm [PDF]

, 2002
Akira Oyama, Meng‐Sing Liou
openalex   +1 more source

Resilient education: The role of digital technology in supporting geographical education in Ukraine

Transactions of the Institute of British Geographers, EarlyView.
Abstract This commentary spotlights the continued impact of the Russian invasion on geography education in higher education in Ukraine. From discussions with Ukrainian geographers in institutions in contrasting regions of the country, we describe their resilience in adapting the delivery of the physical geography curriculum, especially in the essential
Simon M. Hutchinson, Elizabeth R. Hurrell, Kateryna Borysenko, Vladyslav Popov, Dariia Kholiavchuk, Yana Popiuk   +5 more
wiley   +1 more source