54 documents found, page 1 of 6

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Annealing effects on conductivity and optical properties of the PAni layer in I...

Poças, L. C.; Travain, S. A.; Duarte, J. L.; Silva, R. A.; Giacometti, José A; Marletta, Alexandre

Made available in DSpace on 2022-04-28T18:55:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-10-31; In this work we present the electrical and optical characterization of polymer light-emitting diodes (PLEDs) using indium-tin oxide (ITO), polyaniline (PAni), poly(p-phenylene vinylene) (PPV) +dodecylbenzenesulfonate (DBS) and aluminum (Al). To minimize the conversion temperature and reduce the structur...

Date: 2022   |   Origin: Oasisbr

Eu3+-doped lithium tellurite glasses prepared under vacuum condition: Spectrosc...

Andrade, L. H.C.; Lima, S. M.; Silva, R. A.; Devecchi, M. R.; Moraes, J. C.S. [UNESP]; de Ligny, D.; Nunes, L. A.O.

Made available in DSpace on 2022-04-28T19:51:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-06-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); To our knowledge, for the first time Eu2O3-doped lithium tellurite (TL) glasses are synthesized under vacuum conditions. The structural and optical spectroscopic pro...

Date: 2022   |   Origin: Oasisbr

Experimental study on the impact behaviour of metal-fiber laminates

Silva, R. A.; Botelho, E. C. [UNESP]; Rezende, M. C.

Made available in DSpace on 2022-04-28T21:02:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-07-01; The impact response of metal-fiber laminates has been investigated. Measurements were obtained for impact force and energy dissipation. The failure processes in the impact-loaded were initially investigated by examining the front and rear surfaces of the damaged specimens. After this, the delamination a...

Date: 2022   |   Origin: Oasisbr

Encapsulated bacteriophages in alginate-nanohydroxyapatite hydrogel as a novel ...

Barros, J.; Melo, Luís Daniel Rodrigues; Silva, R. A.; Ferraz, M. P.; Azeredo, Joana; Pinheiro, V.; Colaço, B.; Fernandes, M. H.; Gomes, P. S.

An innovative delivery system based on bacteriophages-loaded alginate-nanohydroxyapatite hydrogel was developed as a multifunctional approach for local tissue regeneration and infection prevention and control. Bacteriophages were efficiently encapsulated, without jeopardizing phage viability and functionality, nor affecting hydrogel morphology and chemical composition. Bacteriophage delivery occurred by swellin...


New direct action antivirals containing regimes to treat patients with hepatiti...

Cheinquer, H. H.; Coelho, H. S.; Aires, R. S.; Quintela, E. D.; Lobato, C.; Filho, J. E. M.; Lima, L. B.; Borba, L. A.; Pessoa, M. G.

Made available in DSpace on 2018-11-26T17:56:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-01-01; Univ Fed Rio Grande do Sul, Porto Alegre, RS, Brazil; Univ Fed Rio de Janeiro, Rio De Janeiro, Brazil; Univ Fed Goias, Jatai, Go, Brazil; Inst Infectol Emilio Ribas, Sao Paulo, Brazil; Fundacao Hosp Acre, Rio Branco, Brazil; Univ Fed Paraiba, Joao Pessoa, Paraiba, Brazil; Univ Fed Alagoas, Maceio, Brazi...

Date: 2018   |   Origin: Oasisbr

Effects of different forms of soybean lipids on enteric methane emission, perfo...

Silva, R. A.; Fiorentini, G.; Messana, J. D.; Lage, J. F.; Castagnino, P. S.; San Vito, E.; Carvalho, I. P.C.; Berchielli, T. T.

Made available in DSpace on 2018-12-11T17:24:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-06-19; The aim of the current study was to evaluate the effect of different forms of soybean lipids on enteric methane emission, intake, performance, digestibility and meat quality of 40 young Nellore bulls (initial body weight (BW) 444 ± 10.2 kg and 24 ± 2.1 months). The dietary treatments were as follows: NF...

Date: 2018   |   Origin: Oasisbr

The Híbrido de Timor germplasm: identification of molecular diversity and resis...

Silva, R. A.; Zambolim, L.; Castro, I. S. L.; Rodrigues, H. S.; Cruz, C. D.; Caixeta, E. T.

The main phytosanitary problems affecting global coffee production are the fungal diseases known as rust, caused by Hemileia vastatrix Berkeley and Broome, and coffee berry disease (CBD), induced by Colletotrichum kahawae Waller and Bridge. The main disease control strategy is the use of resistant coffee cultivars. Híbrido de Timor is the most important source of resistant varieties used in breeding programs wo...

Date: 2018   |   Origin: Oasisbr

Mechanical performance of compressed earth block masonry using granitic residua...

Oliveira, Daniel V.; Miranda, Tiago F. S.; Ramos, Luís F.; Silva, R. A.; Soares, Edgar; Leitão, Dinis

Although earthen construction has been practiced for millennia, its advantages associated to current environmental concerns are giving new opportunities to earth as a modern building material. The paper presents and discusses the first results of an experimental campaign carried out at University of Minho on the characterization of masonry components made of stabilized compressed earth blocks, produced with gra...


Influência de essências na alimentação artificial energética na atratividade de...

Almeida Neto, I. P.; Silva, R. A.; Silva, S. S.; Sousa, J. S.; Andrade, A. B. A.

O objetivo desse trabalho foi avaliar a atratividade de diferentes aromas adicionados a alimentação artificial energética de abelhas Apis mellifera. O delineamento experimental usado foi DIC no qual constou de 11 tratamentos e quatro repetições, sendo os tratamentos os aromas tutti-frutte, erva-doce, maracujá, café, baunilha, morango, amarula, menta, cereja, coco e testemunha (sem aroma) e as repetições foram c...

Date: 2015   |   Origin: Oasisbr

Stability of LaNiO3 gas diffusion oxygen electrodes

Silva, R. A.; Soares, C. O.; Carvalho, M. D.; Rangel, C. M.; Pereira, M. I. da Silva

In this work LaNiO3 perovskite-type oxide, prepared by a self-combustion method, was optimized for activity and stability as an anode material for water electrolysis. A full electrochemical study was conducted in order to kinetically characterize electrodes prepared using carbon paper as a base for porous gas-diffusion electrodes in alkaline media, regarding water oxidation and oxygen reduction reactions at roo...

Date: 2014   |   Origin: Repositório do LNEG

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