Results 91 to 100 of about 348,409 (176)

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

open access: yesSchool 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   +6 more
wiley   +1 more source

Green Mobility: Aircraft Electrification Challenges

open access: yes
Presentation at the Smart Green Mobility, IV Edition, Naitec, Pamplona (Spain), 30/10 ...
openaire   +2 more sources

Optimized Fabrication Process and PD Characteristics of MVDC Multilayer Insulation Cable Systems for Next Generation Wide-Body All-Electric Aircraft

open access: yesEnergies
For wide-body all-electric aircraft (AEA), a high-power-delivery, low-system-mass electric power system (EPS) necessitates advanced cable technologies.
Md Asifur Rahman   +2 more
doaj   +1 more source

Is the World Getting Smaller? Network‐Driven Heterogeneity in Gravity‐Model Elasticities

open access: yesThe World Economy, EarlyView.
ABSTRACT Gravity models constitute the workhorse of empirical international trade research, yet the temporal stability of their core parameters—distance and GDP elasticities—remains underexplored, particularly in relation to the evolving structure of trade networks.
Zsolt T. Kosztyán   +2 more
wiley   +1 more source

Cessna Aircraft Company, Board of Directors Meeting Minutes, 1947

open access: yes, 1947
Meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective mode as 24-bit RGB color TIFF. Display image is 8-bit 150 dpi JPG, quality rating 8, generated from uncompressed archival TIFF using ...
Cessna Aircraft Company
core   +1 more source

Cessna Aircraft Company, Board of Directors Meeting Minutes, 1948

open access: yes, 1948
Meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective mode as 24-bit RGB color TIFF. Display image is 8-bit 150 dpi JPG, quality rating 8, generated from uncompressed archival TIFF using ...
Cessna Aircraft Company
core   +1 more source

Locating Electrified Aircraft Service to Reduce Urban Congestion

open access: yesInformation
The relentless expansion of urban populations and the surge in e-commerce have increased the demand for rapid delivery services, leading to an increase in truck traffic that contributes to urban congestion, environmental pollution, and economic ...
Raj Bridgelall
doaj   +1 more source

Sulfur Dioxide Point Sources Remain Important for Daytime Plume‐Scale New Particle Formation in the United States: Case Study for Gary, Indiana During the Summer 2023 AEROMMA Aircraft Campaign

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 19, 16 October 2026.
Abstract Plumes from sulfur dioxide (SO2) point sources have been shown to be significant contributors to new particle formation (NPF), but SO2 emissions in the United States (US) have decreased drastically by ∼10× since the early 2000s. We present observations of plume‐scale NPF from SO2 point sources over the industrial hub in Gary, Indiana and ...
En Li   +27 more
wiley   +1 more source

Regional disparities in electrification of India – do geographic factors matter? [PDF]

open access: yes
Modern energy sources are important input factors for human development. Although official estimates indicate that 85% of Indian villages are electrified, fewer than 60% of Indian households actually consume electricity.
Andreas Kemmler
core  

Cessna Aircraft Company, Board of Directors Meeting Minutes, 1931

open access: yes, 1931
Meeting minutes for the board of directors of the Cessna Aircraft Company.Archival master image scanned in reflective mode as 24-bit RGB color TIFF. Display image is 8-bit 150 dpi JPG, quality rating 8, generated from uncompressed archival TIFF using ...
Cessna Aircraft Company
core   +1 more source

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