Results 61 to 70 of about 2,564,184 (334)
Revista Iberoamericana de Automática e Informática Industrial RIAI, 2011 [EN] Tracking and physical condition monitoring of people who find themselves in hazardous situations, and therefore may require special attention, is crucial to improving their safety. The systems that are commonly used for this purpose do not include individual monitoring or are too expensive and intrusive to be deployed in common situations. In this
Javier G. -Escribano +2 more
openaire +4 more sources
Advanced Materials, EarlyView.Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano +18 more
wiley +1 more source
Estudios de sistemas de cuerpos utilizando técnicas de procesamiento de imágenes
Revista Iberoamericana de Tecnología en Educación y Educación en Tecnología, 2009 En el siguiente trabajo se expone una innovación tecnológica, con respecto a las prácticas tradicionales de laboratorio, para el estudio del movimiento de cuerpos en interacción.
Danilo Dadamia +2 more
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Actualidades Investigativas en Educación, 2012 En este artículo se presentan los resultados obtenidos a partir de una investigación realizada con estudiantes universitarios de formación docente en Física y en Química, con el objetivo de conocer y analizar sus representaciones sociales sobre algunos ...
Claudia Alejandra Mazzitelli
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1020 steel coated with Ti/TiN by Cathodic Arc and Ion Implantation [PDF]
, 2017 TiN coatings have been widely studied in order to improve mechanical properties of steels. In this work, thin Ti/TiN films were prepared by plasma based immersion ion implantation and deposition (PBII&D) with a cathodic arc on AISI 1020 steel substrates.
Bermeo, Diego Fernando +4 more
core +1 more source
Resolving the Structural Duality of Graphene Grain Boundaries
Advanced Materials, EarlyView.Cantilever ncAFM resolves the atomic structure of grain boundaries in graphene, revealing coexisting stable and metastable types. Both contain pentagon/heptagon defects, but metastable GBs show irregular geometries. Modeling shows metastable GBs form under compression, exhibiting vertical corrugation, while stable GBs are flat.
Haojie Guo +11 more
wiley +1 more source
Trans/Form/Ação, 2006 A partir do texto do físico alemão E.Schroedinger, O que é vida? (1943), analisam-se os possíveis limites de demarcação conceitual entre física e biologia. Há um limite possível entre física e biologia? Ou a biologia pode ser reduzida à física?
Arthur Araújo
doaj +1 more source
On the influence of metastable states and the behavior of the EEDF in the characterization of the negative glow of a N2-Ar discharge by OES [PDF]
, 2014 Optical emission spectroscopy (OES) is an essential diagnostic technique in many plasma systems, such as those used for surface treatments or fabrication of thin films.
Gomez, Bernardo Jose Armando +3 more
core +1 more source
Advanced Materials, EarlyView.The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti +8 more
wiley +1 more source
El E-Learning en el desarrollo del Pensamiento científico escolar en el aula de Física
Revista Científica, 2019 En Colombia el ámbito educativo ha mostrado un creciente interés en el uso de las Tecnologías de la Información y la Comunicación (TIC), ingresando de esta manera en lo que se ha llamado la era del conocimiento y la información, por ello, es necesario el
Pablo Alfonso Montoya Ramírez
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