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Análise da influência de superfícies refletivas nas perdas de calor de sistema térmicos
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia MecânicaTecnologia de Materiais; Projetos Mecânicos; Termociências, 2011-02-28)
The use of reflective surfaces functioning as thermal insulator has grown significantly over the
years. Reflective thermal insulator are materials that have several characteristics such as low
emissivity, low absorptivity ...
Wide field continuous wave reflectance optical topography including a clear layer on top of the diffusive surface
(SAGE Publications, 2017-07)
This work considers some experimental details which complement the results of a previous paper concerned with wide field near infrared continuous wave diffuse reflectance optical mammography. Different from the case of ...
Intelligent reflecting surface assisted secure wireless communications with multiple- transmit and multiple-receive antennas
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
In this paper, we propose intelligent reflecting surfaces (IRS) assisted secure wireless communications with multi-input and multi-output antennas (IRS-MIMOME). The considered scenario is an access point (AP) equipped with ...
Applicability of ft-ir techniques and goniometry on characterization of carbon fiber surfaces
(Inst aeronautica & espaco-iae, 2016)
Carbon fibers have been widely used as structural reinforcement in aeronautical composites, because of their exceptional mechanical properties. However, carbon fibers present few polar groups on their surfaces inducing a ...
Characterization of food surface roughness using the glistening points method
(ELSEVIER SCI LTD, 2004)
Several properties of foods, most notably visual perception and color, depend on the complexity of their outer surface. The so-called glistening point method based on specular reflection of an incident light beam is a ...
Dental implants: Surface modification of cp-Ti using plasma spraying and the deposition of hydroxyapatite
(2003-03-13)
The commercial pure titanium (cp-Ti) is currently being used with great success in dental implants. In this work we investigate how the cp-Ti implants can be improved by modifying the metal surface morphology, on which a ...
Dental implants: Surface modification of cp-Ti using plasma spraying and the deposition of hydroxyapatite
(2003-03-13)
The commercial pure titanium (cp-Ti) is currently being used with great success in dental implants. In this work we investigate how the cp-Ti implants can be improved by modifying the metal surface morphology, on which a ...
The interaction between atoms of Au and Cu with clean Si(111) surface: A study combining synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations
(Pergamon-Elsevier B.V. Ltd, 2009-09-15)
In order to evaluate the interactions between Au/Cu atoms and clean Si(l 11) surface, we used synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations. Optimized geometries and ...
The interaction between atoms of Au and Cu with clean Si(111) surface: A study combining synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations
(Pergamon-Elsevier B.V. Ltd, 2009-09-15)
In order to evaluate the interactions between Au/Cu atoms and clean Si(l 11) surface, we used synchrotron radiation grazing incidence X-ray fluorescence analysis and theoretical calculations. Optimized geometries and ...
The use of shallow seismic reflection technique in near surface exploration of urban sites: An evaluation in the city of SãO Paulo, Brazil
(2001-12-01)
In order to evaluate the use of shallow seismic technique to delineate geological and geotechnical features up to 40 meters depth in noisy urban areas covered with asphalt pavement, five survey lines were conducted in the ...