Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Haroldo Naoyuki Nagashima"'
Autor:
Eliton S. Medeiros, Cícero Cena, Michael Jones da Silva, José Antonio Malmonge, Alex Otávio Sanches, Haroldo Naoyuki Nagashima
Publikováno v:
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Made available in DSpace on 2021-06-25T10:18:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-03-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) In the present work, the electrical properties of a natural rubber-bas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c27cbc95b322bf6d033aad1300e46925
https://doi.org/10.1002/pc.25920
https://doi.org/10.1002/pc.25920
Autor:
Paulo Vinícius Rebeque, Michael Jones da Silva, Darcy H. F. Kanda, José Antonio Malmonge, Cícero Cena, Haroldo Naoyuki Nagashima
Publikováno v:
Polymer Composites. 40:7-15
Flexible nanocomposite films derived from castor-oil polyurethane (PUR) and conductive fillers of activated carbon nanopowder (CNP) and carbon black (CB) nanoparticles were prepared by casting and characterized by scanning electron microscopy (SEM) a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc05ad1418674e02c64de6b39dd81a22
https://doi.org/10.1002/pc.24588
https://doi.org/10.1002/pc.24588
Autor:
D. H. F. Kanda, Rodrigo Fernando Bianchi, Haroldo Naoyuki Nagashima, L. S. Cardoso, G. E. Gonçalves
Publikováno v:
Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Made available in DSpace on 2018-11-26T17:42:25Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-12-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) Consel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90a66064f654477e6b9993f4a1ef869b
Publikováno v:
Journal of Non-Crystalline Solids. 358:270-275
In order to identify and quantify the conduction mechanisms involved in the transport process, castor oil based polyurethane/carbon black composite (PU/CB) was introduced in a statistical model that reproduced the ac conductivity of composite PU/CB m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4308efeab9627095b4cb87c48dfb4d0f
https://doi.org/10.1016/j.jnoncrysol.2011.09.032
https://doi.org/10.1016/j.jnoncrysol.2011.09.032
Autor:
José Antonio Malmonge, Haroldo Naoyuki Nagashima, Gilberto Orivaldo Chierice, W. K. Sakamoto, D. H. F. Kanda
Publikováno v:
Journal of Materials Science. 43:5436-5440
Freestanding castor oil-based polyurethane (PU) film was obtained using spin-coating method. The effect of polyol content was analysed by means of thermally stimulated depolarisation current and AC dielectric measurements techniques. Two relaxation p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72d0b60b65f262cf7d8df131152b1d71
https://doi.org/10.1007/s10853-008-2843-3
https://doi.org/10.1007/s10853-008-2843-3
Autor:
Haroldo Naoyuki Nagashima
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USP
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Os processos envolvidos em condução eletrônica de polímeros condutores são muito complicados devido à intricada morfologia estrutural de tais materiais. Realizamos medidas de condutividade alternada em filmes de polianilina em uma grande faixa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ba0292d8e764301b5ad27e7a6280721
https://doi.org/10.11606/t.76.2000.tde-12062008-150425
https://doi.org/10.11606/t.76.2000.tde-12062008-150425
Publikováno v:
Synthetic Metals. 159:2208-2210
A statistical model of a resistor network is proposed to describe the electrical properties, real and imaginary components of ac conductivity, of natural rubber (NR) and poly( o -methoxyaniline) (POMA) blend. It takes into account the polydispersivit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d245f8f243a6d7e654d358bcdf8ae28
https://doi.org/10.1016/j.synthmet.2009.08.055
https://doi.org/10.1016/j.synthmet.2009.08.055
Publikováno v:
2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy (ISAF/PFM).
Structural health monitoring (SHM) refers to the procedure of assessing the structure conditions continuously so it is an alternative to conventional nondestructive evaluation (NDE) techniques [1]. With the growing developments in sensor technology a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10ba47c2abfbbb0f4d89b80e701ecc8d
https://doi.org/10.1109/isaf.2013.6748696
https://doi.org/10.1109/isaf.2013.6748696
Publikováno v:
Journal of Applied Physics. 75:2612-2617
A consistent model is developed for explaining an anomalous peak in the discharging current in step‐voltage measurements in dielectric materials. It is based on the migration of space charge across the bulk of a short‐circuited sample under the a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b27277468e1898c222cdb769dc0b92df
https://doi.org/10.1063/1.356236
https://doi.org/10.1063/1.356236
Autor:
Haroldo Naoyuki Nagashima
Publikováno v:
Biblioteca Digital de Teses e Dissertações da USPUniversidade de São PauloUSP.
Os processos envolvidos em condução eletrônica de polímeros condutores são muito complicados devido à intricada morfologia estrutural de tais materiais. Realizamos medidas de condutividade alternada em filmes de polianilina em uma grande faixa