Results 51 to 60 of about 127,239 (310)

Modelling the effectiveness of PPP road infrastructure projects by applying random forests

open access: yesJournal of Civil Engineering and Management, 2015
Transport sector is very important for development of local economies, so it is intensively studied in different countries. Road infrastructure construction projects in many European countries are mainly carried out through various forms of Public ...
Rūta Rudžianskaitė–Kvaraciejienė   +2 more
doaj   +1 more source

The Impact of Infrastructure Spending on Economic Growth: A Case Study of Indonesia

open access: yesCommunications, 2021
This paper aims to analyze the impact of infrastructure spending on economic growth in Indonesia, which includes investment in road, port and irrigation infrastructure.
Makmun Syadullah, Dhani Setyawan
doaj   +1 more source

International road safety comparisons 2011 [PDF]

open access: yes, 2013
This report presents summaries of road deaths and road death rates for Organisation for Economic Co-operation and Development (OECD) nations and Australian states and territories.

core  

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal   +4 more
wiley   +1 more source

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

open access: yesAdvanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca   +9 more
wiley   +1 more source

Precipitation Simulations of the O‐Phase in Ti2AlNb Alloys Processed by Laser Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Simulated and experimental evolution of the O‐phase volume fraction during postprocessing of a Ti‐21Al‐25Nb (at.%) alloy processed by laser powder bed fusion. With results of sensitivity to input parameters from a thorough and quantified analysis, the interfacial energy matrix/precipitate is the most relevant input parameter for the simulation of the O‐
Silvana Tumminello   +7 more
wiley   +1 more source

Critical factors in road infrastructure development in Osun state, south western Nigeria [PDF]

open access: yesInternational Journal of Development and Sustainability, 2013
Road infrastructure has a very high economic impact on the rural/urban integration especially with the creation of Osun State in 1992. The correlation between road infrastructure and economic development has been well established in literature.
Opawole, A.   +3 more
doaj  

Infrastructure, transport and productivity [PDF]

open access: yes, 2014
This information sheet reviews trends in Australian productivity with a focus on the transport sector. Well targeted investments in transport infrastructure result in productivity increases that benefit many other industries.

core  

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

Analysis of bridge dynamic load test based on millimeter wave radar

open access: yesScientific Reports
This study proposes a millimeter-wave radar telemetry method for measuring bridge dynamic deflection, addressing limitations in traditional dynamic strain measurement methods.
Lei Qiao   +5 more
doaj   +1 more source

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