Results 101 to 110 of about 308,854 (312)

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula   +7 more
wiley   +1 more source

The influence of marine benthic habitat data on systematic conservation planning: Rottnest island as a case study

open access: yes, 2011
The need for mechanisms to protect, maintain and restore global marine biodiversity has been globally recognised. Systematic conservation planning algorithms, such as MARXAN, are now a preferred solution for designing marine protected areas (MPAs) that ...
Davis, Ben
core  

Small Island Effects on the Thermal Biology of the Endemic Mediterranean Lizard <i>Podarcis gaigeae</i>. [PDF]

open access: yesAnimals (Basel), 2023
Reppa A   +6 more
europepmc   +1 more source

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

Sustainable Urban Future in Southern Europe - What About the Heat Island Effect? [PDF]

open access: yes
In general cities, and especially cities in hot zones, as the Mediterranean, suffer from raised temperatures in the city core, generally known as the heat island effect.
Eleftheria Alexandri, Phil Jones
core  

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

A validated methodology for the prediction of heating and cooling energy demand for buildings within the Urban Heat Island: Case-study of London [PDF]

open access: yes, 2010
This is the post-print version of the final paper published in Solar Energy. The published article is available from the link below. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and ...
Davies, M   +8 more
core   +1 more source

Mitigation strategies for regional heat island effects: integrated network construction of cold and heat islands

open access: yesEcological Indicators
The Urban Heat Island (UHI) effect is a major environmental challenge in global urbanization. As urbanization progresses, the UHI effect in individual cities has expanded regionally, forming Regional Heat Islands (RHI). However, strategies for mitigating
Qunyue Liu   +10 more
doaj   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

Archaeology’s Contribution to Island Studies

open access: yes, 2007
Archaeology has, and will continue to make, some important contributions to the broad field of ‘island studies’. In this essay, I discuss four major topics in island archaeology that are helping to shape the way we think about islands. These include: (1)
Scott M. Fitzpatrick
core  

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