Results 131 to 140 of about 18,472 (300)

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

Competitiveness of district cooling in energy efficient supermarkets

open access: yes, 2011
This thesis concerns utilization of district cooling in supermarkets. Today, district cooling is primarily used in hotels, hospitals, offices and computer centrals.
Filipsson, Peter
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

open access: yesAdvanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari   +3 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

Using High Performance Insulation in District Heating Pipes

open access: yes, 2012
It is necessary to improve the distribution of district heating for the future in order to maintain its competitiveness. In recent decades a number of high performance insulation materials have been developed. This paper presents an investigation of high
Adl-Zarrabi, Bijan,, Berge, Axel,
core  

Economics of Small Modular reactors for district cooling systems integrated with thermal storage and Kalina Cycle power generation

open access: yesEnergy Conversion and Management: X
Heat-only Small Modular Reactors (SMRs) offer a promising solution for decarbonizing district heating and cooling systems. They can replace conventional heat sources in district heating and supply absorption chillers in district cooling systems (DCS ...
Hussein Abdulkareem Saleh Abushamah   +1 more
doaj   +1 more source

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

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

open access: yesAdvanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi   +3 more
wiley   +1 more source

District Cooling in Lima, Peru - Identification of potentials and barriers for developing district cooling in the San Isidro financial district

open access: yes, 2017
The district of San Isidro in Lima, Peru, is the countries major business hub and as such, a high density of high value buildings are located there. Cooling needs in these type of buildings are significant, and represent a large portion of their total ...
Chang Ojeda, Miguel Antonio   +1 more
core  

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