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Mechanical and tribological properties of a-C:H:F Thin Films
(2013-07-01)
a-C:H films were grown by plasma-enhanced chemical vapor deposition in atmospheres composed by 30 % of acetylene and 70 % of argon. Radiofrequency signal (RF) was supplied to the sample holder to generate the depositing ...
A review on chemical flooding methods applied in enhanced oil recovery
(Associação Brasileira de Pesquisa e Desenvolvimento em Petróleo e Gás, 2008)
In spite of the recent worldwide interest for alternative sources of energy, with especial and strategic interest in fuels derived from renewable products, the situation of petroleum in many countries stills drives much ...
Mechanical and tribological properties of a-C:H:F Thin Films
(2013-07-01)
a-C:H films were grown by plasma-enhanced chemical vapor deposition in atmospheres composed by 30 % of acetylene and 70 % of argon. Radiofrequency signal (RF) was supplied to the sample holder to generate the depositing ...
Male Sexual Behavior and Pheromone Emission Is Enhanced by Exposure to Guava Fruit Volatiles in Anastrepha fraterculus
(Public Library of Science, 2015-04)
Background: Plant chemicals can affect reproductive strategies of tephritid fruit flies by influencing sex pheromone communication and increasing male mating competitiveness. Objective and Methodology: We explored whether ...
Enhancement of ferromagnetic and ferroelectric properties in calcium doped BiFeO<inf>3</inf> by chemical synthesis
(2015-01-01)
Abstract Calcium (Ca)-doped bismuth ferrite (BiFeO<inf>3</inf>) thin films prepared by using the polymeric precursor method (PPM) were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), polarization ...
Surface enhanced raman scattering of trans-p-coumaric and syringic acids
(2009)
The vibrational spectra of trans-p-coumaric acid (pCA) and syringic acid (SA) are discussed. The spectral fingerprints of the organic acids observed in the infrared and Raman spectra are assigned to fundamental vibrational ...
A Novel Plasma Technique for Surface Treatment: The Plasma Expander
(Institute of Electrical and Electronics Engineers (IEEE), 2012-02-01)
This paper describes a new plasma treatment method: the plasma expander. In this approach, expanding shock waves are generated in a vacuum chamber by pulsed plasmas. Collisions of fast species in the waves modify the ...
A Novel Plasma Technique for Surface Treatment: The Plasma Expander
(Institute of Electrical and Electronics Engineers (IEEE), 2012-02-01)
This paper describes a new plasma treatment method: the plasma expander. In this approach, expanding shock waves are generated in a vacuum chamber by pulsed plasmas. Collisions of fast species in the waves modify the ...
Characterization of SixOyNz coating on CF/PPS composites for space applications
(2018-02-15)
This work deals with the processing and surface treatment of thermoplastic composites carbon fibers/Polyphenylene sulfide (CF/PPS) for aerospace applications. After the production of the thermoplastic composites through ...
Surface-enhanced raman scattering: metal nanostructures coated with langmuir-blodgett films
(Soc Chilena Quimica, 2010-12-01)
This review deals with surface-enhancved Raman scattering (SERS) employing Langmuir-Blodgett (LB) films, which serve as model systems for developing theoretical and experimental studies to elucidate the SERS effect. In ...