Results 111 to 120 of about 144,156 (294)
AIP AdvancesAgricultural Unmanned Aerial Vehicles (UAVs) mainly leverage the downwash airflow generated by rotors for spraying. However, due to the inherent instability of the downwash airflow, there may be droplet drift problems.
Jiacheng Hao, Yongping Li
doaj +1 more source
Aerial Fire Fighting Operational Statistics (2024): Very Large/Large Air Tankers
FireWildfires, a natural part of the wildland life cycle, are experiencing a decades-long trend of increased frequency, duration, and magnitude, resulting in increased risk of fatalities and property damage. Fire suppression methods are adapting accordingly,
Lance Sherry, Mandar Chaudhari
doaj +1 more source
COVID-19 pandemic and air transportation: Summary of Recent Research, Policy Consideration and Future Research Directions. [PDF]
Transp Res Interdiscip Perspect, 2022 Sun X, Wandelt S, Zhang A.
europepmc +1 more source
Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition
Advanced Engineering Materials, EarlyView.A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley +1 more source
Government Transportation Financial Statistics 2007 [PDF]
Government Transportation Financial Statistics (GTFS) consists of transportation revenues and expenditures for Federal, state and local governments. In addition, the GTFS contains data by revenue source, expenditure type, and by mode of transportation ...
United States. Department of Transportation. Bureau of Transportation Statistics
core +1 more source
Correction: Structural and spectral properties of generative models for synthetic multilayer air transportation networks. [PDF]
PLoS One, 2021 Fügenschuh M +3 more
europepmc +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
An assessment of deregulation and its effect on the international air transportation community
, 1980 June 1980Lecture delivered June 19, 1980, by Robert Reed Gray, Esq. to the "Air Transportation -- Management, Economics, and Planning" course, organized by the Center for Advanced Engineering Study, Flight Transportation Laboratory, Department of ...
Gray, Robert Reed
core
Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics
Advanced Engineering Materials, EarlyView.Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost +4 more
wiley +1 more source