Results 51 to 60 of about 24,181 (260)
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han +5 more
wiley +1 more source
This review comprehensively evaluates extrusion‐based additive manufacturing for advanced ceramics, detailing feedstock options and key process parameters. By critically addressing defect mechanisms like porosity and cracking, the work highlights optimization strategies through machine learning and advanced postprocessing.
Meisam Bakhtiari +4 more
wiley +1 more source
Hommage à Paula Vásquez Lezama (1969-2021)
Fatiha Talahite +2 more
doaj +1 more source
Sailing the Prestige out to sea. An independent analysis
The sinking of the supertanker Prestige off the coast of Spain in November 2002 was one of the most devastating oil spills ever worldwide. During any crisis most of the decisions have to be taken with limited information and they can benefit greatly from
Antonio García-Olivares +2 more
doaj +1 more source
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees +6 more
wiley +1 more source
Impact of capital structure on Return on Asset of oil and gas companies in Vietnam
The study analyzes the impact of capital structure on the Return on Assets (ROA) of oil and gas industry enterprises during the period from 2014 to 2022.
Oanh Kieu Le Dao, Nhan Dinh Le
doaj +1 more source
The nanostructure, size, and function of mRNA‐loaded lipid nanoparticles are evaluated before drying, within polymer microneedles, and after rehydration. The results reveal the polymer and LNP loadings required to recover nanostructure and preserve the delivery performance in dry‐state formulations.
Brendan P. Dyett +19 more
wiley +1 more source
EUROPEAN ENERGY MARKET DEVELOPMENTS. OMV AUSTRIA CASE [PDF]
The evolution of the energy market in Europe was influenced by the unprecedented development of the economy in 2007 and by the evolution of oil prices. From the analyses carried out in the energy field, we found that although American economy slowed down
ANDONE DIANA +3 more
doaj
Commodity spot prices and the US stock market performance: evidence from the COVID-19 crisis [PDF]
We examine whether the US stock market significantly responds to the movement of commodity spot prices during the COVID-19 crisis. We regard gold and crude oil as representatives of the commodity spot market, movements in the S&P 500 index as a proxy to ...
Quazi Nur Alam, Dipta Banik
doaj +1 more source

