Resultats globals: 10 registres trobats en 0.02 segons.
Articles, 10 registres trobats
Articles 10 registres trobats  
1.
12 p, 2.5 MB Toward machine learning for microscopic mechanisms : A formula search for crystal structure stability based on atomic properties / Gajera, Udaykumar (University of Turin. Chemistry Department) ; Storchi, Loriano (Università Degli Studi G. d'Annunzio. Dipartimento di Farmacia) ; Amoroso, Danila (Université de Liège. NanoMat/Q-mat/CESAM) ; Delodovici, Francesco (Université Paris-Saclay. CentraleSupélec) ; Picozzi, Silvia (Consiglio Nazionale Delle Ricerche)
Machine-learning techniques are revolutionizing the way to perform efficient materials modeling. We here propose a combinatorial machine-learning approach to obtain physical formulas based on simple and easily accessible ingredients, such as atomic properties. [...]
2022 - 10.1063/5.0088177
Journal of applied physics, Vol. 131, Issue 21 (June 2022) , art. 215703  
2.
30 p, 2.6 MB Novel Ba-hexaferrite structural variations stabilized on the nanoscale as building blocks for epitaxial bi-magnetic hard/soft sandwiched maghemite/hexaferrite/maghemite nanoplatelets with out-of-plane easy axis and enhanced magnetization / Belec, B. (Jožef Stefan International Postgraduate School) ; Dražić, G. (National Institute of Chemistry. Department for Materials Chemistry) ; Gyergyek, Sašo (Jožef Stefan Institute. Department for Materials Synthesis) ; Podmiljšak, B. (Jožef Stefan Institute. Department for Nanostructured Materials) ; Goršak, T. (Jožef Stefan International Postgraduate School) ; Komelj, M. (Jožef Stefan Institute. Department for Nanostructured Materials) ; Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ; Makovec, Darko (Jožef Stefan International Postgraduate School)
Atomic-resolution scanning-transmission electron microscopy showed that barium hexaferrite (BHF) nanoplatelets display a distinct structure, which represents a novel structural variation of hexaferrites stabilized on the nanoscale. [...]
2017 - 10.1039/c7nr05894b
Nanoscale, Vol. 9, Issue 44 (November 2017) , p. 17551-17560  
3.
20 p, 762.8 KB Contenidos de estructura atómica y molecular en libros de texto españoles de Química general (1928-1978) / Sánchez Gómez, Pedro Juan (Universidad Complutense de Madrid) ; González Canle, Felicísimo (CEIP Santiago Ramón y Cajal. Alcorcón.)
En este trabajo presentamos un análisis de los contenidos de física atómica y química cuántica en libros de texto de química de nivel introductorio publicados en castellano, en España, entre 1928 y 1978. [...]
En aquest treball presentem una anàlisi dels continguts de física atòmica i química quàntica en llibres de text de química de nivell introductori publicats en castellà, a Espanya, entre 1928 i 1978. [...]
In this work we present an analysis of the contents of atomic physics and quantum chemistry in introductory textbooks written in Spanish and published between 1928 and 1978. In total, we have studied forty pre-university and twenty-eight university books, using a Grounded Theory methodology for the codification of the contents. [...]

2014 - 10.5565/rev/ensciencias.1200
Enseñanza de las ciencias, Vol. 32 Núm. 3 (2014) , p. 671-689  
4.
4 p, 346.4 KB Large exchange bias and its connection to interface structure in FeF2-Fe bilayers / Nogués, Josep (University of California-San Diego. Physics Department) ; Lederman, D. (University of California, San Diego. Department of Physics) ; Moran, T. J.. (University of California, San Diego. Department of Physics) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; Rao, K. V. (Kungl. Tekniska högskolan. Department of Condensed Matter Physics) ; American Physical Society
Large exchange bias effects (ΔE 1. 1 erg/cm2) were observed in antiferromagnetic (FeF2)-ferromagnetic (Fe) bilayers grown on MgO. The FeF2 grows along the spin-compensated (110) direction. The FeF2-Fe interface roughness was characterized using specular and diffuse x-ray diffraction and atomic force microscopy. [...]
1996 - 10.1063/1.115819
Applied physics letters, Vol. 68, Issue 22 (May 1996) , p. 3186-3188  
5.
4 p, 232.0 KB Size effects on exchange bias in sub-100 nm ferromagnetic-antiferromagnetic dots deposited on prepatterned substrates / Baltz, Vincent (SPINTEC (Spin Electronics Research)) ; Sort Viñas, Jordi (SPINTEC (Spin Electronics Research)) ; Rodmacq, B. (SPINTEC (Spin Electronics Research)) ; Dieny, B. (SPINTEC (Spin Electronics Research)) ; Landis, S. (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ; American Physical Society
Exchange bias effects have been investigated in ferromagnetic (FM)-antiferromagnetic (AFM) square dots, with lateral sizes of 90 nm, sputtered on a prepatterned Si substrate. The magnetic behavior of the dots has been compared with that of a continuous FM-AFM bilayer with the same composition. [...]
2004 - 10.1063/1.1757646
Applied physics letters, Vol. 84, Issue 24 (May 2004) , p. 4923-4925  
6.
4 p, 445.9 KB Direct evidence of imprinted vortex states in the antiferromagnet of exchange biased microdisks / Salazar Álvarez, Germán (Centre d'Investigació en Nanociència i Nanotecnologia) ; Kavich, J. J. (Centre d'Investigació en Nanociència i Nanotecnologia) ; Sort Viñas, Jordi (Institució Catalana de Recerca i Estudis Avançats) ; Mugarza, Aitor (Centre d'Investigació en Nanociència i Nanotecnologia) ; Stepanow, S. (Centre d'Investigació en Nanociència i Nanotecnologia) ; Potenza, A. (Diamond Light Source (Firm)) ; Marchetto, H. (Diamond Light Source (Firm)) ; Dhesi, S. S. (Diamond Light Source (Firm)) ; Baltz, Vincent (SPINTEC (Spin Electronics Research)) ; Dieny, B. (SPINTEC (Spin Electronics Research)) ; Weber, A. (Paul Scherrer Institut. Laboratory for Micro- and Nanotechnology (Villigen, Suïssa)) ; Heyderman, L. J. (Paul Scherrer Institut. Laboratory for Micro- and Nanotechnology (Villigen, Suïssa)) ; Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ; Gambardella, Pietro (Centre d'Investigació en Nanociència i Nanotecnologia) ; American Physical Society
The magnetic domain structure of patterned antiferromagnetic/ferromagnetic Ir20Mn80/Ni80Fe20 bilayer microdisk arrays has been investigated using layer-specific polarized x-ray photoemission electron microscopy and magnetic circular dichroism. [...]
2009 - 10.1063/1.3168515
Applied physics letters, Vol. 95, Issue 1 (July 2009) , p. 012510/1-012510/3  
7.
20 p, 172.5 KB Análisis del enfoque de historia y filosofía de la ciencia en libros de texto de química : el caso de la estructura atómica / Farías Camero, Diana María (Universidad Nacional de Colombia. Grupo de Investigación en Enseñanza de la Química) ; Molina, Manuel F. (Universitat de Barcelona. Departament de Didàctica de les Ciències Experimentals i la Matemàtica) ; Castelló Escandell, Josep (Universitat de Barcelona. Departament de Didàctica de les Ciències Experimentals i la Matemàtica)
Este trabajo analiza desde el enfoque de historia y filosofía de las ciencias (HFC) la forma como se presenta el tema de estructura atómica en cinco libros de texto (LT) de los cursos de química de primer año de la Universidad de Barcelona. [...]
History and Philosophy of Science approach (HPS) in atomic structure chapters was analyzed in five chemistry textbooks that are recommended in first year's courses the at University of Barcelona. A methodological framework composed by four heterogeneous methodologies was applied in this work trying to get a more accurate explanation about the topic studied. [...]

2013 - 10.5565/rev/ec/v31n1.489
Enseñanza de las ciencias, Vol. 31, Núm. 1 (2013) , p. 115-133  
8.
16 p, 152.9 KB ¿Los libros de texto de bachillerato introducen adecuadamente los modelos atómicos de Thomson y Rutherford? / Doménech Blanco, Josep Lluís (Universitat d'Alacant) ; Savall Alemany, Francisco (Universitat d'Alacant) ; Martínez Torregrosa, Joaquín (Universitat d'Alacant)
Desde diferentes enfoques se acepta que el aprendizaje se verá favorecido en la medida en que los estudiantes noten las dificultades que hubo que superar en la construcción de los conocimientos científicos y, también, cómo se sustituyen determinadas concepciones por otras. [...]
It's accepted that learning will be enhanced if students realize the difficulties that must have been faced when the scientific knowledge was established and how previous conceptions were changed for new ones. [...]

2013 - 10.5565/rev/ec/v31n1.764
Enseñanza de las ciencias, Vol. 31, Núm. 1 (2013) , p. 29-43  
9.
13 p, 431.5 KB Los estilos de prosa y el enfoque ciencia-tecnología-sociedad en textos universitarios de química general / Malaver, Manuel (Universidad Pedagógica Experimental Libertador. Instituto Pedagógico de Caracas) ; Pujol, Rafael (Universidad Pedagógica Experimental Libertador. Instituto Pedagógico de Caracas) ; D'Alessandro Martínez, Antonio (Universidad Central de Venezuela)
En este trabajo se estudiaron los estilos de prosa científica y el enfoque ciencia-tecnología-sociedad en textos de química de los cursos básicos universitarios en Venezuela, usando técnicas de análisis de contenido. [...]
In this work we studied prose structures and STS interactions in basic chemistry textbooks commonly used in the initial university courses given in Venezuela with techniques of analysis of content. We have found the most used prose structure to be the knowledge of science, showing little interest in STS interactions.

2004 - 10.5565/rev/ensciencias.3875
Enseñanza de las ciencias, V. 22 N. 3 (2004) , p. 441-454  
10.
12 p, 291.2 KB Estructura atómica : análisis y estudio de las ideas de los estudiantes (8º de EGB) / Fuente, Ana María de la ; Perrotta, María Teresa ; Dima, Gilda ; Gutiérrez, Elena ; Capuano, Vicente Conrado ; Follari, Beatriz del Rosario
Este trabajo se propone indagar las ideas de los estudiantes del tercer ciclo de la educación general básica (EGB) en la República Argentina, jóvenes de 12 a 14 años, con el propósito de conocer lo que piensan sobre la estructura atómica. [...]
The purpose of this paper is to find out the pupils' ideas in the Third Cycle of General Basic Education (EGB) in the Argentinean Republic; it was done with young people of between twelve and fourteen years of age, with the aim of knowing what they think about the atomic structure. [...]

2003 - 10.5565/rev/ensciencias.3946
Enseñanza de las ciencias, V. 21 N. 1 (2003) , p. 123-134  

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