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Thermal structure, heat content and stability of two lakes in The National Park of Rio Doce Valley (Minas Gerais, Brazil)
(1989-02-01)
The thermal structure, heat content and stability were studied in Lakes Dom Helvécio and Carioca during an annual cycle. It was found that the maximum heat content, stability and work of the wind in Lake Dom Helvécio ...
Assessment of cumulative damage by using ultrasonic C-scan on carbon fiber/epoxy composites under thermal cycling
(ABM, ABC, ABPol, 2012-08-01)
In recent years, structural composites manufactured by carbon fiber/epoxy laminates have been employed in large scale in aircraft industries. These structures require high strength under severe temperature changes of -56° ...
Analysis of the effects of thermal cycling on the microtensile shear bond strength of a self-etching and a conventional pit and fissure sealants to dental enamel
(2011-08-10)
Objective: To analyze the effects of thermal cycling on the microtensile shear bond strength of a self-etching and a conventional pit and fissure sealants to dental enamel. Material and Method: Twenty-four healthy human ...
Thermal study of ZrO2 nanoparticles: Effect of heating and cooling cycles on solid-solid transition
(2017-07-10)
This study investigates the influence of particle size on the solid-solid transition in zirconium (ZrO2) nanoparticles. The Simultaneous Thermogravimetry/Derivate Thermogravimetric-Differential Thermal Analysis (TG/DTG-DTA) ...
Thermo and mechanical cycling and veneering method do not influence Y-TZP core/veneer interface bond strength
(ElsevierGuildford, 2013-04)
Objectives: The purpose of this study was to evaluate the influence of thermal and mechanical cycling and veneering technique on the shear bond strength of Y-TZP (yttrium oxide partially stabilized tetragonal zirconia ...
Effect of combined bending strain and thermal cycling on the voltage-current characteristic curves of Bi-2223 tapes
(Institute of Electrical and Electronics Engineers (IEEE), 2005-06-01)
High critical temperature superconductors are evolving from a scientific research subject into large-scale application devices. In order to meet this development demand they must withstand high current capacity under ...
Bond strength of hard chairside reline resins to a rapid polymerizing denture base resin before and after thermal cycling
(2006-11-01)
Purpose: This study assessed the shear bond strength of 4 hard chairside reline resins (Kooliner, Tokuso Rebase Fast, Duraliner II, Ufi Gel Hard) to a rapid polymerizing denture base resin (QC-20) processed using 2 ...
Effect of thermal cycling and disinfection on colour stability of denture base acrylic resin
(2012-04-25)
Objectives: The purpose of this study was to investigate the effect of thermal cycling and disinfection on the colour change of denture base acrylic resin. Materials and Methods: Four different brands of acrylic resins ...
Effect Of Acid Etching, Silane And Thermal Cycling On The Bond Strength Of Metallic Brackets To Ceramic
(Fundação Odontológica de Ribeirão Preto, 2016)
Optimization of an irreversible Otto and Diesel cycles based on ecological function
(2018-01-01)
In this work, a mathematical model is presented for the irreversible Otto and Diesel cycles using finite time thermodynamics. The cycle is analyzed between two reservoirs with infinite thermal capacitances, where the ...