Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Cesar A. Nieves"'
Autor:
Cesar A. Nieves, Luis M. Martinez, Anamaris Meléndez, Margarita Ortiz, Idalia Ramos, Nicholas J. Pinto, Natalya Zimbovskaya
Publikováno v:
AIP Advances, Vol 7, Iss 12, Pp 125229-125229-7 (2017)
Charge transport in the temperature range 80 K < T < 300 K was studied in a composite of carbon spheres (CS), prepared via hydrothermal carbonization of sucrose, and the conducting polymer polyaniline (PANi). PANi was synthesized via the oxidative po
Externí odkaz:
https://doaj.org/article/6d855de133b54ff189caccd61420c332
Publikováno v:
Journal of the American Ceramic Society. 106:4103-4115
Autor:
Julio Cesar Prudencio Nieves
Publikováno v:
Universidad Nacional Mayor de San Marcos
El maquetado web está en constante evolución y cada vez se incorporan nuevos profesionales en la materia. No obstante, las herramientas y los entornos de desarrollo parecen haberse quedado rezagados a lo tradicional: simple uso del teclado para cod
Publikováno v:
2021 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP).
Autor:
Cesar A. Nieves, Michael T. Lanagan
Publikováno v:
2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP).
Metal - Insulator - Metal (MIM) and Metal - Insulator- Semiconductor (MIS) capacitors were fabricated by spin coating poly (methyl methacrylate) (PMMA) as the insulating material. Here, we consider the effect of dissimilar contact electrodes systems
Autor:
Sara Arezoomandan, Hugo O. Condori Quispe, Cesar A. Nieves, Nicholas Ramey, Berardi Sensale-Rodriguez
Publikováno v:
Carbon. 112:177-184
This work discusses and compares two proposed practical approaches for realizing graphene-based reconfigurable terahertz metamaterials, namely: graphene-only plasmonic structures, and graphene/metal hybrid structures. From rigorous theoretical analys
Publikováno v:
Journal of Materials Science: Materials in Electronics. 27:13044-13051
Carbon spheres with diameters in the range 125 nm–10 μm were produced via hydrothermal carbonization of sucrose. Annealing at 800 °C under a flow of dry N2 gas increased the carbon content, reduced the sphere diameter making their shape more unif
Autor:
Nicholas J. Pinto, Natalya A. Zimbovskaya, Anamaris Melendez, L. M. Martinez, Idalia Ramos, Margarita Ortiz, Cesar A. Nieves
Publikováno v:
AIP Advances, Vol 7, Iss 12, Pp 125229-125229-7 (2017)
Carbon spheres (CS) with diameters in the range $2 - 10 ��m$ were prepared via hydrolysis of a sucrose solution at $200^o C,$ and later annealed in $N_2$ at $800^o C.$ The spheres were highly conducting but difficult to process into thin films or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4bc238d696dd58cb049c6a85c94dd3c
Autor:
Nicholas Ramey, Berardi Sensale-Rodriguez, Cesar A. Nieves, Sara Arezoomandan, Kai Yang, Hugo Condori
Publikováno v:
2016 10th European Conference on Antennas and Propagation (EuCAP).
We discuss recent work on graphene-based reconfigurable terahertz metamaterials. In particular two approaches towards constructing reconfigurable metamaterials are analyzed and compared, namely: (i) graphene only plasmonic structures, and (ii) graphe
A set of uniform carbon microspheres (CS) whose diameters have the order of $ 0.125 ��m$ to $10 ��m $ was prepared from aqueous sucrose solution by means of hydrothermal carbonization of sugar molecules. A pressed pellet was composed by mixin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75811a2dca396e50577a24b0738a5a3e