Articles with "using negative" as a keyword



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An efficient real-time colonic polyp detection with YOLO algorithms trained by using negative samples and large datasets.

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Published in 2021 at "Computers in biology and medicine"

DOI: 10.1016/j.compbiomed.2021.105031

Abstract: Colorectal cancer (CRC) is one of the common types of cancer with a high mortality rate. Colonoscopy is the gold standard for CRC screening and significantly reduces CRC mortality. However, due to many factors, the… read more here.

Keywords: polyp detection; detection; using negative; real time ... See more keywords
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Ratiometric temperature measurement using negative thermal quenching of intrinsic BiFeO3 semiconductor nanoparticles

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Published in 2020 at "RSC Advances"

DOI: 10.1039/d0ra01896a

Abstract: A strategy for optical nanothermometry using the negative thermal quenching behavior of intrinsic BiFeO3 semiconductor nanoparticles has been reported here. X-ray diffraction measurement shows polycrystalline BiFeO3 nanoparticles with a rhombohedral distorted perovskite structure. Transmission electron… read more here.

Keywords: negative thermal; thermal quenching; temperature; using negative ... See more keywords
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Experimental demonstration of energy harvesting from the sky using the negative illumination effect of a semiconductor photodiode

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Published in 2019 at "Applied Physics Letters"

DOI: 10.1063/1.5089783

Abstract: We experimentally demonstrate electric power generation from the coldness of the universe directly, using the negative illumination effect when an infrared semiconductor diode faces the sky. Our theoretical model, accounting for the experimental results, indicates… read more here.

Keywords: using negative; diode; power; negative illumination ... See more keywords
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A systematic survey of conformational states in β1 and β4 integrins using negative-stain electron microscopy

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Published in 2018 at "Journal of Cell Science"

DOI: 10.1242/jcs.216754

Abstract: ABSTRACT Structural analyses of β2 and β3 integrins have revealed that they generally assume a compact bent conformation in the resting state and undergo a global conformational transition involving extension during upregulation of ligand affinity,… read more here.

Keywords: using negative; microscopy; negative stain; electron microscopy ... See more keywords