We have developed an imaging system comprised of a sensor having White-RGB color filter array and back end image processing chain (IPC) that enables seamless integration with existing imaging solutions.The key components of our imaging system are 5 megapixel, 1.4um pixel CMOS image sensor covered by White-RGB color filter array and hardware-friendly algorithm which is responsible for conversion of native White-RGB data stream into Bayer RGB and capable to do sharpening and noise suppression simultaneously.We show that our solution provides artifact free images and outperforms alternative solutions both in terms of visual assessment and SNR improvement.
Niobium-base in-situ composite, Nb-18Si-5Mo-5Hf-2C (in mol%), was fabricated by arc-casting method and heat-treated at 2070 K for 20 h in vacuum. The microstructure is composed of Nb solid solution (Nb SS ) matrix phase and secondary phase of Nb 5 Si 3 . The Nb 5 Si 3 was found to have two kinds of structure: one is the α phase reported in the Nb-Si binary phase diagram and the other is a hexagonal phase with Mn 5 Si 3 -type structure. To evaluate the mechanical properties of the composite, nano-indentation hardness tests and tensile tests were conducted. The hardness and elastic modulus at ambient temperature were evaluated using nano-indentation hardness tester and the tensile properties were examined by an Instron-type materials testing machine at temperatures of 300, 1470, 1570, 1670 and 1770 K, and at an initial strain rate of 1 × 10 −4 s −1 . The hardness and elastic modulus of the Nb SS phase are 480 GPa and 170 GPa and those of the silicide are 1480 GPa and 380 GPa. The composite exhibited the excellent ultimate tensile strength of 450 MPa at 1470 K, and the brittle to ductile transition temperature is between 1470 and 1570 K. The fracture behavior of the in-situ composite is complex, however, involving cleavage of the Nb 5 Si 3 , Nb SS /Nb 5 Si 3 interface separation, ductile rupture of the Nb SS and correlations of these.
The antioxidant and α-glucosidase inhibition activities of 10 kinds of seaweeds Ecklonia cava (EC), Ecklonia stolonifera (ES), Eisenia bicyclis (EB), Capsosiphon fulvescens (CF), Sargassum fulvellum (SF), Undaria pinnatifida (UP), Sargassum thunbergii (ST), Codium fragile (CFr), Hizikia fusiformis (HF), and Enteromorpha prolifera (EP) were investigated. Among all the tested seaweed extracts, the total polyphenol and flavonoid contents of the EB extract were highest 150.81 mg/g and 77.02 mg/g, respectively. The DPPH and ABTS radical scavenging abilities of the EB ethanol extract (1 mg/mL) were 86.26% and 99.71%, respectively, and its SOD-like activity and reducing power were 21.34% and 1.710 (OD 700 ). The α-glucosidase inhibition activities of the EC, EB, and ST were above 98% at the 0.1 mg/mL concentration. These results suggest that seaweed extracts effectively prevent the what of antioxidants and decrease the blood glucose level, and may be used to develop various functional products.
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