Preheating of dental composites improves their flowability, facilitating successful restorations. However, the flowability of dental composites is affected not only by temperature but also by the deformation conditions. In the present work, the effects of various deformation conditions upon the viscoelastic properties of a preheated dental composite were studied. The rheological properties of Z...

The aim of the present research work is to investigate the influence of Jatropha biodiesel properties on various characteristics of a direct injection compression ignition engine. The experiments were performed at different engine operating regimes with the injection timing prescribed by the engine manufacturer for diesel fuel. The engine characteristics with Jatropha biodiesel were compared ag...

Background: One of the aesthetic issues in using composite resin is color change. This study aimed to compare changes preheated and non-preheated nanofiller soaked non-instant coffee instant coffee. Method: involved 24 round resins with a diameter 12 mm thickness 2 mm. The samples were divided into two groups (n=12); group I was prepared at 68°C II room temperature. After curing, immersed disti...

To promote the understanding and development of steam diluted H2/air combustion technology, chemical effect dilution on NO formation in 1D laminar premixed flame is numerically studied over a wide range conditions. The importance influence path are analyzed, impact working conditions explored. This research makes up for deficiencies dilution, has significant reference value optimizing practical...

A preheated premixed CH 4 /air jet flame was operated in an optically accessible rectangular combustion chamber order to study the stabilization and expansion mechanisms. Due off-center position of jet, a pronounced lateral recirculation zone had formed which stabilized lifted by mixing burned unburned gases shear layer. Simultaneous single shot measurements flow field particle image velocimetr...

We compared the response of temperature adaptation in preterm infants using the polyethylene wrap with and without previous drying versus the sterile preheated field. Both groups of polyethylene use achieved a mean axillary temperature of 36.5C at 30 minutes compared with 75 minutes for the group of traditional care. At 120 minutes, the incubator temperature was higher in those using preheated ...