Abstract: A polarization-dependent loss (PDL) determining method includes obtaining two groups of optical powers within first duration, selecting at least one group of target optical powers that satisfy a same power constraint from the two groups of optical powers, where each group of target optical powers includes a first target power and a second target power from the two groups of optical powers, and determining a PDL of the optical device based on the at least one group of target optical powers.

Abstract: Systems and methods for concept based searching or recommendation are disclosed. More particularly, embodiments of a concept based approach to the search and analysis of data, including the creation, update or use of concept networks in searching and analyzing data are disclosed, including embodiments of the usage of such concept networks in artificial intelligence systems that are capable of utilizing concepts expressed by users to return or evaluate associated destinations.

Abstract: The present invention discloses a Acinetobacter baumannii immunogenic protein and its composition and application. This invention provides a protein, comprising 39 amino acids of the N-terminal ?-helix part of the Ata protein transport functional domain of Acinetobacter baumannii and an adjuvant protein; amino acid sequence of said 39 amino acids of the N-terminal ?-helix part of the Ata protein transport functional domain of Acinetobacter baumannii is shown as the 127th-165th amino acid residues of SEQ ID NO:2. In present invention the 39 amino acids of the N-terminal ?-helix part of surface protein Ata (Acinetobacter trimeric autotransporter) of Acinetobacter baumannii, was took to fuse with CTB, and express in BL21. The protein was purified by a nickel column, and used to intraperitoneally immunize mouses by 2.5 ?g/mouse. Its immunogenicity and immunoprotection was verified through the animal experiments, which proves it has a good effect of anti-infection of Acinetobacter baumannii.

Abstract: An embodiment may involve obtaining an image composed of color channels, wherein each of the color channels represents colors therein with n bits per pixel; quantizing each of the color channels to be represented by m bits per pixel; using a space-filling curve to convert each of the color channels as quantized into respective vectors; generating, for each of the respective vectors, a respective set of m arrays, wherein the m arrays for a particular vector of the respective vectors contain indices of where a fixed value selected from a range of 0 to m-1 is found in the particular vector; applying, to each of the m arrays for each of the respective vectors, differential encoding and compression of the indices therein; mapping each of the m arrays for each of the respective vectors to blocks of nucleotides; synthesizing the blocks; and storing, in a DNA-based storage medium, the blocks.

Abstract: Systems and methods for concept based searching or recommendation are disclosed. More particularly, embodiments of a concept based approach to the search and analysis of data, including the creation, update or use of concept networks in searching and analyzing data are disclosed, including embodiments of the usage of such concept networks in artificial intelligence systems that are capable of utilizing concepts expressed by users to return or evaluate associated images.

Abstract: A frequency offset processing method, apparatus, and a storage medium, where the method includes: determining a frequency offset of a preset channel in a wavelength selective switch (WSS); determining a correspondence between a frequency offset and a wavelength or a correspondence between a frequency offset and a pixel position based on the frequency offset of the preset channel; and determining a frequency offset of a traffic channel according to the determined correspondence.

Abstract: This application discloses an optical signal transceiver apparatus, and belongs to the communications field.

Abstract: Systems and methods for concept based searching or recommendation are disclosed. More particularly, embodiments of a concept based approach to the search and analysis of data, including the creation, update or use of concept networks in searching and analyzing data are disclosed, including embodiments of the usage of such concept networks in artificial intelligence systems that are capable of utilizing concepts expressed by users to return or evaluate associated images.

Abstract: The invention provided a method for preparing a bacterial polysaccharide-modified recombinant fusion protein and use of the bacterial polysaccharide-modified recombinant fusion protein. The method comprises: co-expressing a recombinant fusion protein and the Neisseria meningitidis O-oligosaccharyltransferase PglL in an O-antigen ligase gene-defective bacterium, and linking a polysaccharides endogenous or exogenous for the bacterium to the recombinant fusion protein by the O-oligosaccharyltransferase PglL, to obtain the bacterial polysaccharide-modified recombinant fusion protein. The protein can be used for preparing antibodies against bacterial polysaccharides and vaccines.

Abstract: The present invention discloses a Salmonella paratyphi A with an O-antigen having an extended carbohydrate chain and uses thereof. The method comprises the following steps: inactivating an cld gene encoding an enzyme controlling chain length of O-antigen of a Salmonella paratyphi A strain to obtain a Salmonella paratyphi A with deletion of cld gene; allowing overexpression of cldLT2 gene encoding an enzyme controlling chain length of O-antigen of Salmonella typhimurium in Salmonella paratyphi A deficient in the cld gene encoding an enzyme controlling chain length of O-antigen, so as to extend carbohydrate chain length of O-antigen. Both of the Salmonella paratyphi A O-polysaccharide-recombinant fusion protein conjugate vaccines rCTB45733-OPSSpty50973 and rEPA4573-OPSSpty50973 as prepared by using Salmonella paratyphi A with an O-antigen having an extended carbohydrate chain can induce mice to generate specific antibodies against Salmonella paratyphi A, and their antibody titers are significantly improved.

Abstract: The present invention discloses a Salmonella paratyphi A with an O-antigen having an extended carbohydrate chain and uses thereof. The method comprises the following steps: inactivating an cld gene encoding an enzyme controlling chain length of O-antigen of a Salmonella paratyphi A strain to obtain a Salmonella paratyphi A with deletion of cld gene; allowing overexpression of cldLT2 gene encoding an enzyme controlling chain length of O-antigen of Salmonella typhimurium in Salmonella paratyphi A deficient in the cld gene encoding an enzyme controlling chain length of O-antigen, so as to extend carbohydrate chain length of O-antigen. Both of the Salmonella paratyphi A O-polysaccharide-recombinant fusion protein conjugate vaccines rCTB45733-OPSSpty50973 and rEPA4573-OPSSpty50973 as prepared by using Salmonella paratyphi A with an O-antigen having an extended carbohydrate chain can induce mice to generate specific antibodies against Salmonella paratyphi A, and their antibody titers are significantly improved.

Abstract: Systems and methods for concept based searching or recommendation are disclosed. More particularly, embodiments of a concept based approach to the search and analysis of data, including the creation, update or use of concept networks in searching and analyzing data are disclosed, including embodiments of the usage of such concept networks in artificial intelligence systems that are capable of utilizing concepts expressed by users to return or evaluate associated images.

Abstract: The invention provided a method for preparing a bacterial polysaccharide-modified recombinant fusion protein and use of the bacterial polysaccharide-modified recombinant fusion protein. The method comprises: co-expressing a recombinant fusion protein and the Neisseria meningitidis O-oligosaccharyltransferase PglL in an O-antigen ligase gene-defective bacterium, and linking a polysaccharides endogenous or exogenous for the bacterium to the recombinant fusion protein by the O-oligosaccharyltransferase PglL, to obtain the bacterial polysaccharide-modified recombinant fusion protein. The protein can be used for preparing antibodies against bacterial polysaccharides and vaccines.

Abstract: The present invention discloses a Salmonella Paratyphi A with an O-antigen having an extended carbohydrate chain and uses thereof. The method comprises the following steps: inactivating an cld gene encoding an enzyme controlling chain length of O-antigen of a Salmonella paratyphi A strain to obtain a Salmonella paratyphi A with deletion of cld gene; allowing overexpression of cldLT2 gene encoding an enzyme controlling chain length of O-antigen of Salmonella typhimurium in Salmonella paratyphi A deficient in the cld gene encoding an enzyme controlling chain length of O-antigen, so as to extend carbohydrate chain length of O-antigen. Both of the Salmonella paratyphi A O-polysaccharide-recombinant fusion protein conjugate vaccines rCTB45733-OPSSpty50973 and rEPA4573-OPSSpty50973 as prepared by using Salmonella Paratyphi A with an O-antigen having an extended carbohydrate chain can induce mice to generate specific antibodies against Salmonella paratyphi A, and their antibody titers are significantly improved.

Abstract: A system and method relate to receiving, by a processing device, a plurality of sound signals captured at a plurality of microphone sensors, wherein the plurality of sound signals are from a sound source, and wherein a number (M) of the plurality of microphone sensors is greater than three, determining a number (K) of layers for a multistage minimum variance distortionless response (MVDR) beamformer based on the number (M) of the plurality of microphone sensors, wherein the number (K) of layers is greater than one, and wherein each layer of the multistage MVDR beamformer comprises one or more mini-length MVDR beamformers, and executing the multistage MVDR beamformer to the plurality of sound signals to calculate an estimate of the sound source.

Abstract: A system and method relate to receiving, by a processing device, a plurality of sound signals captured at a plurality of microphone sensors, wherein the plurality of sound signals are from a sound source, and wherein a number (M) of the plurality of microphone sensors is greater than three, determining a number (K) of layers for a multistage minimum variance distortionless response (MVDR) beamformer based on the number (M) of the plurality of microphone sensors, wherein the number (K) of layers is greater than one, and wherein each layer of the multistage MVDR beamformer comprises one or more mini-length MVDR beamformers, and executing the multistage MVDR beamformer to the plurality of sound signals to calculate an estimate of the sound source.

Abstract: A reflector including pairs of reflecting pieces, each pair of reflecting pieces includes at least one reflecting unit, each reflecting unit including a first reflecting portion, a second reflecting portion, and a first fixing portion and a second fixing portion whose bottom ends are respectively connected to the first reflecting portion and the second reflecting portion. The first fixing portion is located on the side of the first reflecting portion that is opposed to an optical center of the reflecting unit, and the second fixing portion is located on the side of the second reflecting portion that is opposed to the optical center of the reflecting unit.

Abstract: A reflector including pairs of reflecting pieces, each pair of reflecting pieces includes at least one reflecting unit, each reflecting unit including a first reflecting portion, a second reflecting portion, and a first fixing portion and a second fixing portion whose bottom ends are respectively connected to the first reflecting portion and the second reflecting portion. The first fixing portion is located on the side of the first reflecting portion that is opposed to an optical center of the reflecting unit, and the second fixing portion is located on the side of the second reflecting portion that is opposed to the optical center of the reflecting unit.