Výsledky vyhledávání - "Torres, Evy Augusto Salcedo"

Dissertation/ Thesis

Modelo unidimensional do atrito em escala atômica : um estudo por dinâmica molecular

Publikováno v: Biblioteca Digital de Teses e Dissertações da UFRGSUniversidade Federal do Rio Grande do SulUFRGS.

o trabalho de Krim e Windom [Phys. Rev B 38, 12184(1988)], que revelou a natureza viscosa do atrito em escala atômica, gerou uma intensa atividade tanto teórica quanto experimental. Contudo, questões fundamentais ainda se matém em aberto com opor

Externí odkaz: http://hdl.handle.net/10183/7761

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Water diffusion in rough carbon nanotubes

Autor: Mendonça, Bruno Henrique da Silva e, Ternes, Patrícia, Torres, Evy Augusto Salcedo, Oliveira, Alan Barros de, Barbosa, Marcia Cristina Bernardes

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

We use molecular dynamics simulations to study the diffusion of water inside deformed carbon nanotubes with different degrees of deformation at 300 K. We found that the number of hydrogen bonds that water forms depends on nanotube topology, leading t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::1d2d33cf9e38228fd37abfcad816a77c

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Water diffusion in carbon nanotubes : Interplay between confinement, surface deformation, and temperature

Autor: Mendonça, Bruno Henrique da Silva e, Ternes, Patrícia, Torres, Evy Augusto Salcedo, Oliveira, Alan Barros de, Barbosa, Marcia Cristina Bernardes

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

In this article, we investigate, through molecular dynamics simulations, the diffusion behavior of the TIP4P/2005 water confined in pristine and deformed carbon nanotubes (armchair and zigzag). To analyze different diffusive mechanisms, the water tem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::3fc3785bbe314393439518e8a879af6c

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Relation between boundary slip mechanisms and waterlike fluid behavior

Autor: Dallagnollo, Patricia Ternes, Torres, Evy Augusto Salcedo, Barbosa, Marcia Cristina Bernardes

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

The slip of a fluid layer in contact with a solid confining surface is investigated for different temperatures and densities using molecular dynamic simulations. We show that for an anomalous waterlike fluid the slip goes as follows: for low levels o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::f4deb2b65b2668f71389aa94f11b82ed

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Multiple liquid-liquid critical points and density anomaly in core-softened potentials

Autor: Barbosa, Marco Aurélio Alves, Torres, Evy Augusto Salcedo, Barbosa, Marcia Cristina Bernardes

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

The relation between liquid-liquid phase transitions andwaterlike density anomalies in core-softened potentials of fluids was investigated in an exactly solvable one-dimensional lattice model and in a three-dimensional fluid with a Fermi-like potenti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::3e821592667807edbff35aa3e7f1bbd1

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Relation between occupation in the first coordination shells and widom line in core-softened potentials

Autor: Torres, Evy Augusto Salcedo, Barraz Junior, Ney Marçal, Barbosa, Marcia Cristina Bernardes

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

Three core-softened families of potentials are checked for the presence of density and diffusion anomalies. These potentials exhibit a repulsive core with a softening region and at larger distances an attractive well. We found that the region in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::2520ae9973db4a2329e5d82dd54bfded

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Thermodynamic, dynamic, structural, and excess entropy anomalies for core-softened potentials

Autor: Barraz Junior, Ney Marçal, Torres, Evy Augusto Salcedo, Barbosa, Marcia Cristina Bernardes

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

Using molecular dynamic simulations, we study three families of continuous core-softened potentials consisting of two length scales: a shoulder scale and an attractive scale. All the families have the same slope between the two length scales but exhi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::5d23ac9635d59553aaa25a49fa1b7f97

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Entropy, diffusivity and the energy landscape of a waterlike fluid

Autor: Oliveira, Alan Barros de, Torres, Evy Augusto Salcedo, Chakravarty, Charusita, Barbosa, Marcia Cristina Bernardes

Publikováno v: Repositório Institucional da UFOP
Universidade Federal de Ouro Preto (UFOP)
instacron:UFOP
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

Molecular dynamics simulations and instantaneous normal mode (INM) analysis of a fluid with core-softened pair interactions and waterlike liquid-state anomalies are performed to obtain an understanding of the relationship between thermodynamics, tran

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::376221c58b17343c61a0ea0c8a38b014
http://www.repositorio.ufop.br/handle/123456789/1467

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Thermodynamic, dynamic, and structural anomalies for shoulderlike potentials

Autor: Barraz Junior, Ney Marçal, Torres, Evy Augusto Salcedo, Barbosa, Marcia Cristina Bernardes

Publikováno v: Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

Using molecular dynamic simulations we study a family of continuous core-softened potentials consisting of a hard core, a shoulder at closest distances, and an attractive well at further distance. The repulsive shoulder and the well distances represe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::bf94d3e49bf3943009d5135f5f1036f9

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Escoamento de um fluido tipo-água nanoconfinado

Autor: Dallagnollo, Patricia Ternes

Publikováno v: Biblioteca Digital de Teses e Dissertações da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS

Nesta tese, estudamos o comportamento de um fluido tipo-água nanoconfinado entre placas paralelas rugosas e termalizadas. Primeiro analisamos o comportamento do diagrama de fases temperatura versus densidade desse sistema. Encontramos que o fluido s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od______3056::3fed9d7f66cd392ed8d0063fe88321f5

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