Results 101 to 110 of about 414,718 (315)

Fluid Flow, Solidification and Solute Transport in Slab Continuous Casting with Different S-EMS Installation Positions

open access: yesMetals
During continuous slab casting, strand electromagnetic stirring (S-EMS) has a significant effect on improving the slab quality. In the current work, a numerical model based on the practical slab continuous casting machine and coupled electromagnetic ...
Daiwei Liu   +3 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced 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

Schelling's Segregation Model: Parameters, scaling, and aggregation [PDF]

open access: yes
Thomas Schelling proposed a simple spatial model to illustrate how, even with relatively mild assumptions on each individual's nearest neighbor preferences, an integrated city would likely unravel to a segregated city, even if all individuals prefer ...
Howard Weiss   +2 more
core  

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

open access: yesAdvanced 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   +2 more
wiley   +1 more source

Occupational Gender Segregation in the Czech Republic (in English) [PDF]

open access: yes
The authors use labor force survey data to provide a detailed description and an international comparison of the level and structure of occupational gender segregation in the Czech Republic during 1994–2004.
Michal Franta, Štìpán Jurajda
core  

Understanding sentiment toward racial unrest through temporal and geographic lenses: a multilevel-analysis across metropolitan areas in the United States

open access: yesFrontiers in Communication
Racial unrest has long been a salient social issue in the United States. Time and space provide essential contexts for the emergence and evolution of racial unrest.
Sanguk Lee, Myung Sik Cho, Tai-Quan Peng
doaj   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

open access: yesAdvanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai   +6 more
wiley   +1 more source

Da marginalidade à segregação: contribuições de uma teoria urbana crítica

open access: yesEconomía, Sociedad y Territorio, 2017
Several interpretations of the dynamics of globalization have brought urban issues into the spotlight. Since the conditions of creation of urban society are tied predominantly to extra-regional factors, this process may potentially destroy the local ...
César Simoni-Santos
doaj  

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Den svenska skolan och coronapandemin : om skolans likvärdighet och segregation

open access: yes, 2020
Skolan fyller flera funktioner, för individer och för samhället, i nuet och i framtiden. Pandemins konsekvenser kan ännu inte beskrivas men i denna artikel diskuteras troliga konsekvenser utifrån observationer under våren 2020 och forskning rörande ...
Åstrand, Björn
core  

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