Results 31 to 40 of about 1,370 (212)

Procedimiento para integrar la dimensión ambiental en la formación de recursos humanos en hospitales

Retos de la Dirección, 2021
Objetivo: Desarrollar un procedimiento para integrar la dimensión ambiental en la formación de recursos humanos en hospitales. Métodos: Histórico-lógico, analítico-sintético, inductivo-deductivo, sistémico-estructural, modelación, y empíricos como la ...
Yunelsy Ortiz Chávez, Clara Marrero Fornaris, Roberto Guillermo Rodríguez Córdova   +2 more
doaj  

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

Educación ambiental y ecociudadania. Dimensiones claves de un proyecto político-pedagógico

Revista Científica, 2014
La educación ambiental no pueder estar aislada de la dinámica social contemporánea, caracterizada por diversos movimientos sociales de indignación y la emergencia progresiva de una ciudadanía cada vez más consciente de los lazos indisociables entre las ...
Lucie Sauvé
doaj   +3 more sources

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
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, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Environmental training in government officials of the People's Power: a theoretical approximation

Cooperativismo y Desarrollo, 2021
In the framework of the updating of the Cuban economic and social model of socialist development, the environmental issue is present in the "National Plan for Economic and Social Development until 2030", which is committed to mechanisms that from the ...
Luis Humberto Márquez Delgado, Dora Lilia Márquez Delgado, Niurka Castillo Rocubert   +2 more
doaj  

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

La sustentabilidad regional en Sonora, desde la propuesta ambiental nacional

Vértice Universitario, 2015
En esencia, la conducta ambiental en México se rige por un marco legal que establece máximos permitidos de emisión de contaminantes, establecido en relación con la densidad de población y con la fuente de emisión.
María Eugenia De la Rosa Leal
doaj  

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source