333 research outputs found

    Quantum Feature Extraction for THz Multi-Layer Imaging

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    A learning-based THz multi-layer imaging has been recently used for contactless three-dimensional (3D) positioning and encoding. We show a proof-of-concept demonstration of an emerging quantum machine learning (QML) framework to deal with depth variation, shadow effect, and double-sided content recognition, through an experimental validation.Comment: 2 pages, 5 figures, IRMMW-THz202

    Intra-Atrial Tumor Embolus in Hepatocellular Carcinoma

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    A case of hepatocellular carcinoma with a massive tumor embolus in the right atrium is reported. Although hepatocellular carcinoma often invades into portal and hepatic vein and may extend into the inferior vena cava, it is rare that the tumor grows out to fill the right atrium. The literature on the intracardiac metastasis of hepatocellular carcinoma as well as other carcinomas is reviewed

    Glycerol as a Superior Electron Source in Sacrificial H<sub>2</sub> Production over TiO<sub>2</sub> Photocatalyst

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    Biodiesel fuel (BDF) has gained much attention as a new sustainable energy alternative to petroleum-based fuels. BDF is produced by transesterification of vegetable oil or animal fats with methanol along with the co-production of glycerol. Indeed, transesterification of vegetable oil (136.5 g) with methanol (23.8 g) was performed under heating at 61°C for 2 h in the presence of NaOH (0.485 g) to produce methyl alkanoate (BDF) and glycerol in 83.7 and 73.3% yields, respectively. Although BDF was easily isolated by phase separation from the reaction mixture, glycerol and unreacted methanol remained as waste. In order to construct a clean BDF synthesis, the aqueous solution of glycerol and methanol was subjected to sacrificial H2 production over a Pt-loaded TiO2 catalyst under UV irradiation by high-pressure mercury lamp. H2 was produced in high yield. The combustion energy (ΔH) of the evolved H2 reached 100.7% of the total ΔH of glycerol and methanol. Thus, sacrificial agents such as glycerol and methanol with all of the carbon attached to oxygen atoms can continue to serve as an electron source until their sacrificial ability was exhausted. Sacrificial H2 production will provide a promising approach in the utilization of by-products derived from BDF synthesis

    Multiorgan Involvement of Light Chain Deposition Disease : Report of an Autopsy Case

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    An autopsy case of light chain deposition disease is reported here. A 60-year-old female with plasmacytosis of the bone marrow was disclosed to have amorphous eosinophilic deposits in the kidneys and lungs. Glomerular deposits in kidneys were reminiscent of diabetic nodular glomerulosclerosis. Immunohistochemistry disclosed that they were composed of κ-light chain. Systemic deposition of κ-light chain may occur and should be kept in mind whenever eosinophilic amorphous substance is found in the background of plasma cell dyscrasias
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