Thermal barrier coatings (TBC) on turbine hot section components require regular maintenance by visual inspection for which the engine is taken out of service and partially disassembled. Early detection of the TBC degradation and failure is critical to prevent catastrophic engine failure. Under this project it was proposed to incorporate Li2O as a maker material in the TBC away from the surface...

Endospore formation by Bacillus subtilis is a complex and dynamic process. One of the major challenges of sporulation is the assembly of a protective, multilayered, proteinaceous spore coat, composed of at least 70 different proteins. Spore coat formation can be divided into two distinct stages. The first is the recruitment of proteins to the spore surface, dependent on the morphogenetic protei...

Potato leafroll virus is a member of the polerovirus genus. The isometric virion is formed by a coat protein encapsidating single-stranded, positive-sense, mono-partite genomic RNA with covalently attached viral protein at the 5' end. The coat protein of the virus exists in two forms: i) a 23 kDa protein, the product of the coat protein gene, and ii) a 78 kDa protein, the product of the coat pr...

BACKGROUND AND AIM: Different studies evaluating one-step self-etch (SE) adhesive systems show contradictory findings, so the aim of this study was to compare the microleakage of one-step SE adhesive systems and CLEARFIL SE BOND (that serves as the “gold-standard” SE adhesive) with low shrinkage composites. METHODS: In this in vitro study, Class V cavities with the occlusal margin in enamel and...

At maturity, the spores of Dictyostelium are suspended in a viscous fluid droplet, with each spore being surrounded by its own spore coat. Certain glycoproteins characteristic of the spore coat are also dissolved in this fluid matrix after the spore coat is formed. To determine whether any proteins of the coat reside in this fluid phase earlier during the process of spore coat assembly, pairs o...

Local residual stress in thermally grown oxide (TGO) layers is the primary cause of failure thermal barrier coating (TBC) systems, especially TBCs prepared by air plasma spray (APS) with a highly irregular TGO. Herein, distribution and evolution TGO layer APS were investigated as function oxidation time. The was measured from cross-sectional micrographs converted to actual inside coatings befor...