منابع مشابه
Color Stability of Two Bulk-Fill Composite Resins
Objective: Bulk-fill composites are a group of composite resins designed for easy and fast filling of large cavities. This study aimed to assess the color stability of bulk-fill composites subjected to xenon radiation and evaluate their color change (&DeltaE) following polymerization. Methods: In this in vitro experimental study, 30 specimens (4mm in height and 8mm in diameter) were fabricat...
متن کاملGravitational Stability and Bulk Cosmology
We present a discussion of the effects induced by bulk viscosity either on the very early Universe stability and on the dynamics associated to the extreme gravitational collapse of a gas cloud. In both cases the viscosity coefficient is related to the energy density ρ via a power-law of the form ζ = ζ0ρ s (where ζ0, s = const.) and the behavior of the density contrast in analyzed. In the first ...
متن کاملcolor stability of two bulk-fill composite resins
objective: bulk-fill composites are a group of composite resins designed for easy and fast filling of large cavities. this study aimed to assess the color stability of bulk-fill composites subjected to xenon radiation and evaluate their color change (&deltae;) following polymerization. methods: in this in vitro experimental study, 30 specimens (4mm in height and 8mm in diameter) were fabricated...
متن کاملStorage Stability of Wheat Germ Oil Encapsulated within Nanostructured Lipid Carriers
The present study aimed to evaluate the effect of surfactant composition on the physical properties of nanostructured lipid carriers (NLCs) containing wheat germ oil (WGO) and to investigate the influence of both surfactant composition and pH on the oxidative stability of WGO encapsulated within the NLCs. The results showed that the smallest particle size (52.7 nm) was related to the NLC with t...
متن کاملBulk magnetic domain stability controls paleointensity fidelity
Nonideal, nonsingle-domain magnetic grains are ubiquitous in rocks; however, they can have a detrimental impact on the fidelity of paleomagnetic records-in particular the determination of ancient magnetic field strength (paleointensity), a key means of understanding the evolution of the earliest geodynamo and the formation of the solar system. As a consequence, great effort has been expended to...
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ژورنال
عنوان ژورنال: Port-Said Engineering Research Journal
سال: 2016
ISSN: 2536-9377
DOI: 10.21608/pserj.2016.33664