Abstract: An electromagnetic ultrasonic double wave transducer, comprising a shell (1), and a permanent magnet assembly, a coil (4), a shielding layer (5), and a wire (6) which are provided in the shell (1). The permanent magnet assembly comprises a first permanent magnet (2) and a second permanent magnet (3) sleeved on the first permanent magnet (2). The magnetizing directions of the first permanent magnet (2) and the second permanent magnet (3) are perpendicular to the bottom of the shell (1), and the magnetic field directions of the first permanent magnet (2) and the second permanent magnet (3) are opposite. A non-conducting non-magnetic bushing material (9) is provided between the first permanent magnet (2) and the second permanent magnet (3), and upper end faces of the first permanent magnet (2) and the second permanent magnet (3) realize magnetic circuit closing by means of a magnetic circuit closing element (8).

Abstract: The present disclosure discloses a method for synthesizing quinolones intermediates by a continuous flow reaction. Specifically, according to the method, a microchannel reactor is used, which improves the selectivity and conversion rate of the reaction, and the conversion rate of compound ii is increased to more than 95% and the yield is increased to more than 85%; avoids the use of a solvent such as methanol, and methyl tert-butyl ether, etc., in the intermittent reaction process, which simplifies the post-processing method, shortens the overall operation time from about 24 hours to a few minutes, greatly improving the production efficiency, and realizing the continuity and automation of the whole process; and thus makes the product have high purity and high yield, which is suitable for industrial production.

Abstract: A supported metallocene catalyst includes a carrier and a metallocene component. The carrier includes an inorganic oxide particle and an alkyl aluminoxane material. The inorganic oxide particle includes at least one inorganic oxide compound selected from the group consisting of an oxide of Group 3A and an oxide of Group 4A. The alkyl aluminoxane material includes an alkyl aluminoxane compound and an alkyl aluminum compound that is present in amount ranging from greater than 0.01 wt % to less than 14 wt % base on 100 wt % of the alkyl aluminoxane material. The metallocene component is supported on the carrier, and includes one of a metallocene compound containing a metal from Group 3B, a metallocene compound containing a metal from Group 4B, and a combination thereof. A method for preparing the supported metallocene catalyst and a method for preparing polyolefin using the supported metallocene catalyst are also disclosed.

Abstract: This application provides a radiating element, an antenna array, and a network device, to avoid mutual shielding between dipoles during multi-band transmission, and therefore improve radiation performance. The radiating element includes one or more dipoles and a supporter. The one or more dipoles are suspended on the top of the supporter, and each of the one or more dipoles is connected to the supporter at a specific angle. A dipole arm of each dipole is covered with a periodic structure. The periodic structure is configured to enable an electromagnetic wave radiated to a first surface of each dipole to be incident to a second surface of each dipole, where the first surface and the second surface are any two opposite surfaces of each dipole.

Abstract: A first circuit includes at least one bridge, where input ends of the at least one bridge are coupled to digital channels in N analog networks, to perform digital weighting and analog on a received electrical signal; a second circuit includes at least one bridge, where output ends of the at least one bridge are coupled to M antennas, to perform digital weighting and analog on a received electrical signal; and a connection circuit includes at least one power splitter.

Abstract: A mAb or Taxilin alpha-binding fragment thereof (“Taxilin alpha”) having an antibody heavy chain; an antibody light chain, an antibody comprising a heavy chain and/or an antibody. A kit of the same monoclonal antibody or Taxilin alpha-binding fragment thereof. A method of making the Taxilin alpha. The making method requires separating the Taxilin alpha from a cell culture that expresses the Taxilin alpha.

Abstract: This application provides a downlink transmitting system and a switching method. The downlink transmitting system includes at least one digital intermediate frequency module group, at least one Tx port group, a plurality of PAs, at least one switching switch, and an antenna array. The plurality of PAs are connected to the antenna array. The plurality of PAs are connected to all Tx ports included in the downlink transmitting system in a one-to-one correspondence. The at least one digital intermediate frequency module group is in a one-to-one correspondence with the at least one Tx port group. Each Tx port group is connected to each digital intermediate frequency module in a corresponding digital intermediate frequency module group through one switching switch. Each Tx port group includes a plurality of Tx ports.

Abstract: This application provides a multi-band shared-aperture antenna. The multi-band shared-aperture antenna includes a first antenna array, a second antenna array, and a reflection panel, where the first antenna array includes four first dielectric plates perpendicular, two adjacent first dielectric plates are perpendicular to each other, the first antenna array includes four hollowed butterfly dipole units, the dipole unit includes two radiation arms, the two radiation arms are respectively printed on two adjacent first dielectric plates, the radiation arm includes a first part and a second part, a first feeding stub is disposed on the first dielectric plate, the second part has a specified width in a direction perpendicular to the reflection panel, the second antenna array includes a plurality of second dielectric plates, four ring-shaped coils are disposed on any one of the second dielectric plates, and the ring-shaped coil is connected to a second feeding stub.

Abstract: An antenna system, a feeding network reconfiguration method, and an apparatus is disclosed. The antenna system may include an antenna array, a reconfigurable network unit, a control unit, and K radio frequency channels. The antenna array may include L antenna subarrays, and the reconfigurable network unit may divide the L antenna subarrays into M antenna subarray groups, and separately connect the M antenna subarray groups to the K radio frequency channels; any one of the K radio frequency channels may perform signal processing on a signal received by a connected antenna subarray group and/or a to-be-transmitted signal; and the control unit may control the reconfigurable network unit to adjust a mapping relationship between an antenna subarray group connected to each radio frequency channel and the antenna subarrays.

Abstract: A beamforming method and apparatus are provided. A beamforming apparatus according to one embodiment comprises a beamforming module comprising a beam port configured to provide electrical signals; an antenna array comprising a plurality of antenna ports; and a feeding network disposed between and coupling the beam port and the antenna ports. The feeding network is configured to shunt the electrical signals provided by the beam port to the plurality of antenna ports, the electrical signals received at the antenna ports being used to control shapes of beams formed by the antenna array. An amplitude of an electrical signal shunted to an antenna port and an operating frequency of the antenna array meet a first correspondence. A phase difference between electrical signals shunted to two different antenna ports and the operating frequency meet a second correspondence.

Abstract: This application provides a radiating element, an antenna array, and a network device, to avoid mutual shielding between dipoles during multi-band transmission, and therefore improve radiation performance. The radiating element includes one or more dipoles and a supporter. The one or more dipoles are suspended on the top of the supporter, and each of the one or more dipoles is connected to the supporter at a specific angle. A dipole arm of each dipole is covered with a periodic structure. The periodic structure is configured to enable an electromagnetic wave radiated to a first surface of each dipole to be incident to a second surface of each dipole, where the first surface and the second surface are any two opposite surfaces of each dipole.

Abstract: The present invention is related to a method or a pharmaceutical composition for treatment or prevention of a cancer through blocking the interaction of ?4 integrin and focal adhesion kinase (FAK).

Abstract: An antenna system, a feeding network reconfiguration method, and an apparatus is disclosed. The antenna system may include an antenna array, a reconfigurable network unit, a control unit, and K radio frequency channels. The antenna array may include L antenna subarrays, and the reconfigurable network unit may divide the L antenna subarrays into M antenna subarray groups, and separately connect the M antenna subarray groups to the K radio frequency channels; any one of the K radio frequency channels may perform signal processing on a signal received by a connected antenna subarray group and/or a to-be-transmitted signal; and the control unit may control the reconfigurable network unit to adjust a mapping relationship between an antenna subarray group connected to each radio frequency channel and the antenna subarrays.

Abstract: A method for diagnosis or aiding in the diagnosis of Sjögren's Syndrome (SS). The diagnosis method requires testing a sample obtained or derived from a subject for an amount of Taxilin alpha, wherein determining an amount of Taxilin alpha that is more than a reference comprises a diagnosis or aids in a diagnosis that the individual has SS, and wherein determining an amount of Taxilin alpha that is the same as or less than a reference indicates the individual does not have SS. A mAb or Taxilin alpha-binding fragment thereof (“Taxilin alpha”) having an antibody heavy chain; an antibody light chain, an antibody comprising a heavy chain and/or an antibody. A kit of the same monoclonal antibody or Taxilin alpha-binding fragment thereof. A method of making the Taxilin alpha. The making method requires separating the Taxilin alpha from a cell culture that expresses the Taxilin alpha.

Abstract: The present invention is related to a method or a pharmaceutical composition for treatment or prevention of a cancer through blocking the interaction of ?4 integrin and focal adhesion kinase (FAK).

Abstract: An antenna array, including at least two antenna bays. Operating frequency bands of all of the at least two antenna bays are the same, each antenna bay includes at least one transmit channel or receive channel, and each antenna bay transmits data in a co-frequency co-time full duplex manner. Alternatively, operating frequency bands of two adjacent antenna bays of the at least two antenna bays are adjacent frequency bands or are separated by one or two frequency bands, each antenna bay includes at least one receive channel and at least one transmit channel, and each antenna bay transmits data in an asynchronous manner. An angle value between a line connecting center points of any two adjacent antenna bays of the at least two antenna bays and a horizontal line is acute. By using the present invention, isolation between antenna bays of the antenna array is increased.

Abstract: The present invention relates to a new zinc binding fusion protein that is a fusion protein of glutathione S-transferase (GST) and metallothionein (MT), to which zinc bind, providing an efficacy in preventing or treating a ROS-related disease and heavy metal poisoning.

Abstract: A server includes a chassis, a transfer board, a hard disk drive cage, two hard disk drive trays, two mother board trays, two mother boards, first hard disk drives and second hard disk drives. The chassis has an accommodation space. The transfer board is disposed on the first side plate and the second side plate to divide the accommodation space into a first accommodation region and a second accommodation region. The hard disk drive cage is located in the first accommodation region. The hard disk drive cage includes storage sections for disposing the first hard disk drives. The two hard disk drive trays for disposing the second hard disk drives are located in the second accommodation region and insert into the transfer board. All the two hard disk drive trays and the two mother board trays are randomly arranged in rows and columns and insert into the transfer board.

Abstract: A server includes a case, a storage module, a connection module, a first expander board, a second expander board, a first mother board and a second mother board. The case includes a bottom case. The storage module is disposed on the bottom case and includes multiple storage units. The connection module is disposed on the bottom case and connected to the storage module. At least one first expander chip is disposed on the first expander board. At least one second expander chip is disposed on the second expander board. At least one first central processing unit is disposed on the first mother board. At least one second central processing unit is disposed on the second mother board. The first expander board, the second expander board, the first mother board and the second mother board are pluggably connected to the connection module, respectively.