Results 171 to 180 of about 4,294 (302)

Network Structure and the Efficiency Gains from Mergers: Evidence from U.S. Freight Railroads

open access: yesThe RAND Journal of Economics, EarlyView.
ABSTRACT The trade‐off between market power and efficiency gains is central to antitrust analyses of mergers, but empirical evidence quantifying efficiencies remains limited. Using transaction‐level data from U.S. freight railroads (1985–2005), this article quantifies merger‐induced cost efficiencies, driven mainly by eliminating inter‐railroad ...
Yanyou Chen
wiley   +1 more source

Fatigue Life Anisotropy of API 5L X42 Pipeline Steel in Axial Force-Controlled Tests. [PDF]

open access: yesMaterials (Basel)
Beltrán-Zúñiga MA   +6 more
europepmc   +1 more source

Mean-stress sensitivity of an ultrahigh-strength steel under uniaxial and torsional high and very high cycle fatigue loading. [PDF]

open access: yesFatigue Fract Eng Mater Struct, 2022
Schönbauer BM   +6 more
europepmc   +1 more source

Performance of the Direct Current Electric Potential Difference (DCEPD) Method for Crack Extension Measurement in Fracture Mechanics Specimens Exhibiting Split Delaminations

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This work investigates the performance of the direct current electric potential difference (DCEPD) method for measuring crack extension (∆a$$ \Delta a $$) during fracture toughness tests of ductile steels exhibiting delaminations perpendicular to the main crack plane, known as splits.
Sergio Luis Gonzalez Assias   +2 more
wiley   +1 more source

The Impact of Autonomous Truck Technology on US Interstate Trade

open access: yesJournal of Regional Science, EarlyView.
ABSTRACT Recent advances in autonomous and semi‐autonomous vehicle technologies promise substantial cost savings for goods shipped by truck. In this study, we quantify the impacts of these transport cost reductions on the US interstate trade using a structural gravity model of domestic trade. Based on projected cost savings from the widespread adoption
Taejun Mo   +4 more
wiley   +1 more source

Engineered surface strategies to manage dental implant‐related infections

open access: yesPeriodontology 2000, EarlyView.
Abstract When exposed to the oral environment, dental implants, like natural surfaces, become substrates for microbial adhesion and accumulation, often leading to implant‐related infections—one of the main causes of implant failure. These failures impose significant costs on patients, clinicians, and healthcare systems.
João Gabriel S. Souza   +7 more
wiley   +1 more source

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