Results 121 to 130 of about 8,008,426 (300)
U.S. Department of Energy Strategic Plan
The mission of the Department of Energy is to ensure America's security and prosperity by addressing its energy, environmental, and nuclear challenges through transformative science and technology solutions.
United States. Department of Energy.
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ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur +5 more
wiley +1 more source
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez +5 more
wiley +1 more source
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt +8 more
wiley +1 more source
On level energy and level characteristic polynomial of rooted trees [PDF]
Audace A. V. Dossou-Olory +3 more
doaj +1 more source
A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice +2 more
wiley +1 more source
Regional Super ESPC Saves Energy and Dollars at NASA's Johnson Space Center
This case study about energy saving performance contacts (ESPCs) presents an overview of how the NASA's Johnson Space Flight Center established an ESPC contract and the benefits derived from it.
Program, Federal Energy Management
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Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
Adaptability analysis of phase-comparison distance protection in renewable energy systems
The fault characteristics of renewable energy sources are controlled and differ significantly from those of conventional synchronous generators, posing serious challenges to the operating performance of existing distance protection.
YU Weiguo +6 more
doaj +1 more source
Energy Activities With Energy Ant
"This little friend has been created by the Federal Energy Administration to tell kids about energy and how to use it wisely" (p. i)
Federal Energy Administration. Office of Communications and Public Affairs.
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