Results 151 to 160 of about 3,348,877 (306)

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Indoor Air Quality: An Overdue Awakening. [PDF]

Environ Sci Technol
Marr LC, Corsi RL.
europepmc   +1 more source

Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy

Advanced Engineering Materials, EarlyView.
This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb, Zachary T. Kloenne, Samuel R. Rogers, Chi Hang Dominik Kwok, Mark C. Hardy, Michele S. Conroy, David Dye   +6 more
wiley   +1 more source

Air quality correlations with physical activity and asthma in the elderly. [PDF]

Medicine (Baltimore)
Gao C, Sun D, Yin H, Zhang Y, Pei Y.
europepmc   +1 more source

Reducing Emissions from the Electricity Sector: The Costs and Benefits Nationwide and for the Empire State [PDF]

CAIR, Clean Air Interstate Rule, Clean Air Mercury Rule, CAMR, multipollutant regulation, particulates, multi-pollutant regulation, ozone, air quality regulation, emissions, mercury, sulfur dioxide, nitrogen oxides, SO2, NOx, electricity, air ...
Burtraw, Dallas, Palmer, Karen, Shih, Jhih-Shyang   +2 more
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Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
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

International trade and air-quality-related mortality. [PDF]

Nat Commun
Wang S, Thakrar S, Johnson J, Tessum CW.
europepmc   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Machine Learning Applications with Sensors for Indoor Air Quality Research. [PDF]

Sensors (Basel)
Rosca CM, Stancu A.
europepmc   +1 more source

Three-City Air Study [PDF]

This study analyzes the local regulatory and non-regulatory determinants of ambient air quality in Allegheny, Baltimore, and Cuyahoga Counties over the period 1972-1992.
Powell, Mark
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