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the first season of survey at qeshm, carried out during the winter of 2006, resulted in the identification of nine sites from the parthian and sasanian periods. the surface pottery from these sites suggests their trade and cultural relations with contemporary sites in the southern persian gulf and other areas. for instance, the parthian and sasanian glazed types in qeshm island are closely re...

Color preservation of esthetic dental restorative materials in the oral environment represents, besides longevity, a concern, and there is still limited knowledge related to effect aging on optical behavior resin matrix ceramics. The study analyzed finishing thermocycling ceramic material surfaces, order assess their consequences properties. Five CAD/CAM ceramics, namely polymer-infiltrated fou...

This paper considers the results of an examination a polychrome glazed anthropomorphic ceramic figurine from Prmor’ye region (southern Russian Far East) discovered at one Jin period (1115–1234 CE) archaeological sites. The study attests to hypothesis about attribution this unique art object “red-and-green porcelain” produced in Northern China since mid-Jin period. At present “the red-and-green ...

background : in anterior endodontically treated teeth a better esthetic can be achieved by using all-ceramic post -core restorations instead of metal post systems. maximum retention and fracture resistance of the post are the criteria upon which selection of a post system is based. the aim of this study was to evaluate the fracture resistance and retention of two all-ceramic post and core syste...

Improving the performance of building envelope is essential to energy conservation and emission reduction. Adaptive (ABE) has potential effectively reduce consumption at a lower cost. Movable window insulation an instantiation ABE with great application in buildings, but it not been systematically studied. Trying fill this gap, paper proposes automatic control system manual rule for movable ins...

Aim: To assess the effect of surface finish and acidic beverage (cola beverage) on hardness fracture toughness zirconia lithium silicate (Celtra press)Methodology: Total n=36 samples reinforced press) plates were divided into two main groups (n=18 glazed n=18 polished samples) then each group was subdivided equal according to immersion solution (artificial saliva & cola beverage). Surface factu...