Results 141 to 150 of about 179,749 (303)

The Distribution of Transportation Costs in the Twin Cities Region

open access: yes, 2003
The purpose of this report is to determine who bears the costs of transportation in the Twin Cities Region for 1998 and 2020. In a previous report, The Full Cost of Transportation in the Twin Cities Region, we determined the total social costs of ...
Anderson, David, McCullough, Gerard
core  

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Application of a Regional Multi-Modal Transportation System Performance Monitoring Framework [PDF]

open access: yes
DTRT13-G-UTC57Comprehensive archives of regional real-time transportation system data, drawn from public agency fixed and moving detectors and integrated across travel modes, can provide unprecedented opportunities for precise and reliable system ...
Giuliano, Genevieve   +3 more
core  

Principles of determining the operation efficiency for suburban passenger trains in the set direction of traffic

open access: yesNauka ta progres transportu, 2012
The work is devoted to development of principles of determination of of operation efficiency of concrete group of suburban passenger trains in the set direction of traffic taking into account an unrecorded passenger turnover from incomplete payment of ...
Yu.S. Barash   +3 more
doaj  

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera   +8 more
wiley   +1 more source

Blockchain-Based Smart Contracts for Transportation Infrastructure Project Funding [PDF]

open access: yes
69A3551747110The USDOT Strategic Plan highlights the importance of improving the mobility of people and goods through its focus on infrastructure. However, a significant portion of the transportation infrastructure in the United States\u2013up to 173,000
Pacific Northwest Transportation Consortium (PacTrans) (UTC)   +10 more
core  

Transportation Economic Trends [2016]

open access: yes
Transportation plays a vital role in the American economy: it makes economic activity possible, and serves as a major economic activity in its own right.
Brumbaugh, Stephen   +2 more
core   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

open access: yesAdvanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe   +4 more
wiley   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy