Results 91 to 100 of about 3,644,723 (252)

Air transportation as a puzzle piece of COVID-19 in Africa? [PDF]

open access: yesRes Transp Bus Manag, 2022
Sun X, Wandelt S, Zhang A.
europepmc   +1 more source

Annual Report for Calendar Year 2017: New England Transportation Consortium [PDF]

open access: yes
The New England Transportation Consortium (NETC) is a cooperative effort of the transportation agencies of the six New England States, the six New England state land grant universities, and the Federal Highway Administration (FHWA).
New England Transportation Consortium
core  

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Annual Report for Calendar Year 2016: New England Transportation Consortium [PDF]

open access: yes
The New England Transportation Consortium (NETC) is a cooperative effort of the transportation agencies of the six New England States, the six New England state land grant universities, and the Federal Highway Administration (FHWA).
New England Transportation Consortium
core  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Impact of COVID-19 on domestic air transportation in China. [PDF]

open access: yesTransp Policy (Oxf), 2022
Li Y, Wang J, Huang J, Chen Z.
europepmc   +1 more source

Recognizing the Potential to Reduce GHG Emissions through Air Transportation Electrification [Research Brief]

open access: yes
Advances in electric aircraft development provide opportunities for new Regional Air Mobility services that can enhance the connectivity of regions by using underutilized existing airport infrastructure and integrating the use of electrified ground ...
Oldham, Joseph   +4 more
core  

How to become a commuter air carrier [PDF]

open access: yes
Under Title 49 of the United States Code ("the Statute"), anyone who wants toprovide air transportation service as an air carrier must first obtain twoseparate authorizations from the Department of Transportation: "safety"authority in the form of an Air ...
United States. Department of Transportation. Air Carrier Fitness Division
core  

Transportation Expressions

open access: yes
This report compiles definitions of transportation terms used throughout the Department of Transportation and other US government agencies. This is the first edition of Transportation Expressions; future editions will be expanded in scope to include ...
O'Leary, Pamela   +2 more
core   +1 more source

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