نتایج جستجو برای: heat curing

تعداد نتایج: 212612  

2008
Seongcheol Choi Moon Won

15. Supplementary Notes Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. 16. Abstract Curing has substantial effects on the long-term performance of Portland cement concrete (PCC) pavement. TxDOT requires two applications of curing compounds, with a maximum 180 sf/gal per each application. However, no compliance testing is cond...

Journal: :Dental materials journal 2007
Nicoleta Ilie Ester Jelen Tatiana Clementino-Luedemann Reinhard Hickel

In modern research, development of monomers that reduce shrinkage of composite materials remains an ongoing quest and perennial challenge. The purpose of this study, therefore, was to analyze the shrinkage behaviour of an innovative composite material for dental restorations based on a monomer with a new chemical formulation, known as silorane. To this end, shrinkage stress development during c...

2017
Parul Mour Agarwal Sonali Taneja Mohit Kumar

Aim The aim of this study is to evaluate and to compare the effect of different light-curing modes and different liners on cuspal deflection in premolar teeth restored with bulk filled or incrementally filled composite measured at different time intervals. Materials and Methods The study was divided into two parts (Part 1-different curing modes, Part 2-different liner) each with sixty extract...

2012
Muhd Fadhil Nuruddin

This paper reports the results of an experimental work conducted to investigate the effect of curing conditions on the compressive strength of self-compacting geopolymer concrete prepared by using fly ash as base material and combination of sodium hydroxide and sodium silicate as alkaline activator. The experiments were conducted by varying the curing time and curing temperature in the range of...

Journal: :Brazilian oral research 2015
Rafael Silva Beolchi Cacio Moura-Netto Renato Miotto Palo Carlos Rocha Gomes Torres Bruno Pelissier

The present study aimed to assess the influence of curing distance on the loss of irradiance and power density of four curing light devices. The behavior in terms of power density of four different dental curing devices was analyzed (Valo, Elipar 2, Radii-Cal, and Optilux-401) using three different distances of photopolymerization (0 mm, 4 mm, and 8 mm). All devices had their power density meas...

2017
Anna Pöntinen Mariella Aalto-Araneda Miia Lindström Hannu Korkeala

Listeria monocytogenes is one of the most heat-resistant non-spore-forming food-borne pathogens and poses a notable risk to food safety, particularly when mild heat treatments are used in food processing and preparation. While general heat stress properties and response mechanisms of L. monocytogenes have been described, accessory mechanisms providing particular L. monocytogenes strains with th...

Journal: :MATEC web of conferences 2021

The efficient production of component families small batch sizes and high diversity requires numerical analyses manufacturing processes, especially for complex shaped components made fibre-reinforced thermosets. In the case snap-cure systems, curing takes place in a very short time exothermic reaction can lead to accumulation heat inhomogeneous curing. order achieve reliable composite component...

ژورنال: مواد پرانرژی 2019

Polybutadiene acrylic acid acrylonitrile (PBAN) is binder for composite solid propellants used in spacecraft systems which its curing kinetics is so important. In this research, the effect of functionality of epoxy curative on the curing kinetics of PBAN is researched. Equivalent stoichiometric ratios of PBAN and di-functional (DER 331) and tri-functional (LY 5052) epoxy curatives was cured at ...

2016
Natalia Skiepko

The aim of this study was to determine the effect of lycopene addition to the curing mixture for steamed and grilled breast muscles on the chemical composition, sensory attributes and physicochemical parameters of the final products. The experimental material comprised a total of 48 breast muscles of Hybrid XL turkeys aged 15 weeks and fed commercial pelleted diets. The material was divided int...

2010
J. H. Yu J. K. Duan W. Y. Peng L. C. Wang P. Peng P. K. Jiang

We have prepared a series of nano-sized aluminium nitride (nano-AlN)/cycloaliphatic epoxy/trimethacrylate (TMPTMA) systems and investigated their morphology, thermal conductivity, thermal stability and curing behavior. Experimental results show that the thermal conductivity of composites increases with the nano-AlN filler content, the maximum value is up to 0.47 W/(m!K). Incorporation of a smal...

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