In 1967 the first work in solid state dye laser was performed by doping rhodamine dyes Polymethylmethacrylate (PMMA) materials. Since then some materials like various types of polymers, co-polymers, poly composite glasses have been used as host matrices for different dyes. Polymers suffer from limited mechanical and thermal stability. Hence can be alternative hosts. However, because high proces...

A series of 19 p-substituted aromatic trifluorovinyl ether compounds were prepared from versatile intermediate p-Br-C(6)H(4)-O-CF=CF(2) and underwent thermal radical mediated cyclodimerization to new difunctional compounds containing the 1,2-disubstituted perfluorocyclobutyl (PFCB) linkage. The synthetic scope demonstrates the functional group transformation tolerance of the fluorovinyl ether, ...

Thermoplastic properties of extruded sugar beet pulp (SBP) are closely linked to water–polymer relationships. DSC analyses of water evaporation, water fusion and biopolymer relaxation according to SBP moisture content gave a more accurate estimation of SBP hydration steps than classical water adsorption isotherm. Three moisture contents (8%, 26%, 41% db) were then defined as limits of the diffe...

Image quality is a key issue in radiology, particularly in a clinical setting where it is important to achieve accurate diagnoses while minimizing radiation dose. Some computed tomography (CT) manufacturers have introduced algorithms that claim significant dose reduction. In this study, we assessed CT image quality produced by two reconstruction algorithms provided with GE Healthcare's Discover...

We evaluated antioxidant activities of heated pear juice (HPJ) exposed to 120, 130, and 140°C for 2 hr. HPJ was partitioned using n-hexane, chloroform, ethyl acetate, n-butanol, and water. The ethyl acetate fraction treated at 130°C for 2 hr showed strong antioxidant activity; thus, this extract was isolated and purified using silica gel column chromatography and preparative high performance li...

BACKGROUND AND OBJECTIVES Elevated BP contributes to development and progression of proteinuria and decline in renal function in patients with type 2 diabetes. Our post hoc analysis assessed the baseline BP influence on the antiproteinuric effect in the Aliskiren in the Evaluation of Proteinuria in Diabetes (AVOID) study. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS In the AVOID study, 599 h...

The effect was clarified of the design parameters on heat transfer an impingement steam jet applied to continuous liquid food sterilization with aim high heating performance. study investigated effects and water Reynolds number, jet-to-target spacing diameter ratio, temperature Nusselt number. number defined based injection plate configurations in turbulent flow. at 120 °C greater than 125 130 ...