Results 321 to 330 of about 14,068,745 (433)

Mechanical and Microstructural Effects of ZrO2 Nanoparticles in Fe20Cr Oxide Dispersion‐Strengthened Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling, Silja‐Katharina Rittinghaus, Felix Radtke, Abdelrahman Elsayed, Marina Macias Barrientos, Ulf Ziesing, Louis Becker, Ihsan Murat Kuşoğlu, Christoph Broeckmann, Ulrich Krupp, Avinash Hariharan, Sebastian Weber, Bilal Gökce   +12 more
wiley   +1 more source

Retraction: Nexus between energy efficiency, green investment, urbanization and environmental quality: Evidence from MENA region. [PDF]

PLoS One
PLOS One Editors.
europepmc   +1 more source

Federal roles to realize national energy-efficiency opportunities in the 1990s

, 1989
Eric Hirst
openalex   +2 more sources

Assessing the Microstructure of SnBiZn Alloys during Semisolid Treatment

Advanced Engineering Materials, EarlyView.
The development of Sn‐based alloys for semisolid processing is crucial for Industry 4.0. This study investigates Sn40Bi and Sn40Bi2Zn alloys, revealing that Zn refines Sn‐rich globules by pinning dendrite boundaries. Bi saturation occurs at 60 min, while Zn enhances globule microhardness at 90 min through solid solution strengthening.
Carolina de Siqueira Simioli, Guilherme Lisboa de Gouveia, José Eduardo Spinelli   +2 more
wiley   +1 more source

Enhancing energy efficiency in buildings using sawdust-based insulation in hot arid climates. [PDF]

Sci Rep
Alwan NT, Tarish AL, Yaqoob SJ, Bajaj M, Zaitsev I.   +4 more
europepmc   +1 more source

Maximization of Energy Efficiency and Trade Off of Energy Efficiency

International Journal for Research in Applied Science and Engineering Technology, 2017
openaire   +2 more sources

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Integrating energy efficiency into municipal purchasing decisions: Defining the framework

, 1988
Mikael Østhus Schärer, David Pratt
openalex   +2 more sources

Development of Aluminum Scandium Alloys for Hydrogen Storage Valves

Advanced Engineering Materials, EarlyView.
Different aluminum alloy series and various aluminum‐scandium alloys with differing Sc and Zr levels are evaluated for use in hydrogen storage valve production. The alloys undergo hardness testing, optical microscopy, and tensile strength analysis, with hardening behavior studied under varying conditions.
Francisco García‐Moreno, Tillmann Robert Neu, Markus Eberl, Paul Hans Kamm, Hans‐Wolfgang Seeliger   +4 more
wiley   +1 more source

Pareto Front Transformation in the Decision-Making Process for Spectral and Energy Efficiency Trade-Off in Massive MIMO Systems. [PDF]

Sensors (Basel)
Haxhiraj E, Shahu D, Agastra E.
europepmc   +1 more source