Results 91 to 100 of about 169,333 (314)
Advanced Engineering Materials, EarlyView.The subject of this work is the development of a corrosion‐protective coating on steel sheets for form hardening. Rapid heating in an extreme high vacuum (XHV)‐adequate atmosphere is a useful method to prevent oxidation during alloying of 22MnB5 and aluminum to obtain a metallurgical bonding.
Lorenz Albracht +5 more
wiley +1 more source
Students at Risk: sociodemographic variables and university dropout
Educação & RealidadeNearly 30% of Portuguese university students drop out, posing a significant challenge with long-term consequences. This study aimed to identify socio-demographic, economic, and academic factors linked to higher dropout intentions, which is especially ...
Paula Paulino +4 more
doaj +1 more source
Separability in the Ambient Logic
Logical Methods in Computer Science, 2008 The \it{Ambient Logic} (AL) has been proposed for expressing properties of process mobility in the calculus of Mobile Ambients (MA), and as a basis for query languages on semistructured data. We study some basic questions concerning the discriminating power of AL, focusing on the equivalence on processes induced by the logic $(=_L>)$.
Hirschkoff, Daniel +2 more
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Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
wiley +1 more source
Derecho Ambiental. Responsabilidad Ambiental Internacional.
Relaciones Internacionales, 2001 Instituto de Relaciones Internacionales (IRI)
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EUNOMÍA. Revista en Cultura de la Legalidad, 2014 The concept of environmental justice emphasizes and demonstrates the connection between both the severe deterioration of the natural environment, and the unequal distribution of the negative consequences of environmental laws and policies designed to address it.
openaire +2 more sources
Ensino de Geología Ambiental no ambiente urbano
Cadernos do Laboratorio Xeolóxico de Laxe. Revista de Xeoloxía Galega e do Hercínico Peninsular, 2018 As restrições financeiras no ensino superior têm afetado diversas áreas de estudo e seus efeitos podem ser considerados particularmente perniciosos para os temas que precisam de trabalho de campo, como é o caso da Geologia. Nestas circunstâncias, a utilização de recursos locais merece especial atenção.
openaire +4 more sources
Advanced Engineering Materials, EarlyView.This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang +3 more
wiley +1 more source
Ecology and Evolution, 2020 An ecological niche has been defined as an n‐dimensional hypervolume formed by conditions and resources that species need to survive, grow, and reproduce.
Camila Bosenbecker, Leandro Bugoni
doaj +1 more source