Now showing items 1-10 of 398
Proposal of convergence of e-Learning systems for t-Learning
This article presents considerations about viability on reutilize existing web based e-Learning systems on Interactive Digital TV environment according to Digital TV standard adopted in Brazil. Considering the popularity ...
Kinetics of interface state-limited hole injection in alpha-naphthylphenylbiphenyl diamine (alpha-NPD) thin layers
(Elsevier B.V. Sa, 2009-03-01)
Injection-limited operation is identified in thin-film, alpha-NPD-based diodes. A detailed model for the impedance of the injection process is provided which considers the kinetics of filling/releasing of interface states ...
Development of a graphical interface for the Rietveld refinement program DBWS
Nanomechanical properties of biochemically modified dentin bonded interfaces
P>The effect of biomodification of dentin matrices using collagen cross-linkers, glutaraldehyde (GD) and grape seed extract (GSE), on the reduced modulus of elasticity (Er) and nanohardness (H) of the hybrid layer and ...
Effect of bur type and conditioning on the surface and interface of dentine
(Blackwell Publishing, 2005-11-01)
The purpose of this in vitro study was to evaluate the surface and resin-dentine interface characteristics of permanent tooth dentine cut with diamond or carbide burs and treated with phosphoric acid (PA) or an acidic ...
Modeling of interfaces in two-dimensional problems using solid finite elements with high aspect ratio
(Pergamon-Elsevier B.V. Ltd, 2012-03-01)
The use of standard solid finite elements with a very high aspect ratio is proposed to model the behavior of thin interface regions between distinct components of composite structural members. It is shown that these elements ...
Nanohardness of a Ti thin film and its interface deposited by an electron beam on a 304 SS substrate
The results of nanohardness measurements at a film surface and film-substrate interface are presented and discussed. An electron beam device was used to deposit a Ti film on a 304 stainless steel (304 SS) substrate. The ...
Open and Standardized Resources for Smart Transducer Networking
(Institute of Electrical and Electronics Engineers (IEEE), 2009-10-01)
IEEE 1451 standard is intended to address the smart transducer interfacing problem in network environments. Usually, proprietary hardware and software are a very efficient solution for implementing the aforementioned ...
A VHDL-based protocol controller for NCAP processors
(Elsevier B.V., 2009-02-01)
This work presents the development of an IEEE 1451.2 protocol controller based on a low-cost FPGA that is directly connected to the parallel port of a conventional personal computer. In this manner it is possible to implement ...