A method for transforming planar electronic devices into 3D structures under mechanically mild and stable conditions is demonstrated. This strategy involves diffusion control of acetone as a plasticizer into a spatially designed acrylonitrile butadiene styrene (ABS) framework to both laminate membrane-type electronic devices and transform them into a desired 3D shape. Optical, mechanical, and electrical analysis reveals that the plasticized region serves as a damper and even reflows to release the stress of fragile elements, for example, an Au interconnect electrode in this study, below the ultimate stress point.
View Article and Find Full Text PDFWe propose a novel walk-off-compensation method for ultraviolet-light-source development. A walk-off occurring in the frequency mixing of infrared and green beams is doubly compensated for using an external walk-off compensator and a nonlinear-material set with internal walk-off-compensation arrangement. We theoretically and experimentally verified that our method can improve the power and beam shape of the output ultraviolet beam.
View Article and Find Full Text PDFWith the aim of developing a novel valsartan-loaded solid dispersion with enhanced bioavailability and no crystalline changes, various valsartan-loaded solid dispersions were prepared with water, hydroxypropyl methylcellulose (HPMC) and sodium lauryl sulphate (SLS). Effects of the weight ratios of SLS/HPMC and carrier/drug on both the aqueous solubility of valsartan and the drug-release profiles of solid dispersions were investigated. The physicochemical properties of solid dispersions were characterized using scanning electron microscope (SEM), differential scanning calorimetry (DSC) and X-ray diffraction (XRD).
View Article and Find Full Text PDFHepatogastroenterology
February 2007
Background/aims: Combined resection of segments 5 and 8, or right anterior segmentectomy, is one of the most difficult hepatic resections because of the danger of bleeding from the two major hepatic veins, the middle and right hepatic veins, during hepatectomy. We describe here the operative procedure and clinical analysis of right anterior segmentectomy in 35 patients with hepatic malignancy.
Methodology: Between March 1993 and December 2004, 35 patients underwent right anterior segmentectomy for hepatic malignancy.