Abstract: A gas purification assembly for an air-conditioning indoor unit, the gas purification assembly comprising: a filter device arranged at or near an air inlet end of the air-conditioning indoor unit, for filtering particles entrained in the gas entering through the air inlet end; an ion generator located downstream of the filter device along the gas flow direction, for increasing the content of positive and/or negative ions in the gas flow; an atomizing device located downstream of the ion generator along the gas flow direction, for increasing the humidity and the amount of ions of the gas flow, and eliminating the ozone generated by the ion generator; and a photocatalytic device located downstream of the atomizing device along the gas flow direction, for performing a photocatalytic reaction on the humidified gas flow. An air-conditioning indoor unit equipped with the gas purification assembly is also disclosed.

Abstract: An electronic air cleaner includes a control housing including an ion generation device and a brush array having at least one brush assembly extending therefrom. The brush array is connectable to the control housing in both a first configuration and a second configuration.

Abstract: A gas purifying device for an air-conditioning terminal product includes a housing; an ion generator secured to the housing; blades arranged on the outer side of the housing and used for receiving wind power from the air-conditioning terminal product for rotation; and an electric generator arranged in the housing and connected to the blades through a rotor shaft; when rotating, the blades drive the electric generator to operate to convert wind energy into electric energy, thereby enabling the electric generator to supply power to the ion generator. An air-conditioning terminal product provided with the gas purification device, and an air-conditioning unit configured with the air-conditioning terminal product.

Abstract: The present disclosure discloses a whole avian-origin reverse genetic manipulation system and its use in producing a recombinant H7N9 avian influenza vaccine. The whole avian-origin reverse genetic manipulation system is an eight-plasmid reverse genetic manipulation system based on H5N2 subtype avian influenza D7 virus strain, which is comprised of 8 recombinant plasmids respectively containing PB2, PB1, PA, HA, NP, NA, M and NS gene fragments derived from H5N2 subtype avian influenza D7 virus strain. The genome of the recombinant H7N9 subtype avian influenza vaccine of the present disclosure is comprised of an NA gene and a modified HA gene derived from a highly pathogenic H7N9 subtype avian influenza virus strain, as well as PB2, PB1, PA, NP, M and NS genes derived from H5N2 subtype avian influenza D7 virus strain.

Abstract: The present disclosure provides a fan coil unit and an air conditioning system. The fan coil unit includes: a housing, which defines an airflow inlet, an airflow outlet, and an airflow path from the airflow inlet to the airflow outlet; a cross-flow fan, which is located at the airflow inlet to introduce an airflow into the housing; and a heat exchange unit located downstream of the cross-low fan on the airflow path.

Abstract: The present disclosure discloses a whole avian-origin reverse genetic system, a recombinant H5N2 subtype avian influenza virus, a vaccine containing the virus, and a preparation method and application thereof. The genome of the recombinant virus is comprised of a modified HA gene derived from a highly pathogenic H5N6 subtype avian influenza virus strain, as well as PB2, PB1, PA, NP, NA, M and NS genes derived from H5N2 subtype avian influenza D7 virus strain. The recombinant virus is a recombinant H5N2 avian influenza virus rescued from the D7 virus strain as a backbone, which is an avirulent virus strain with the original immunogenicity, and can maintain a high virus titer during the chick embryo culture process. The recombinant virus fully meets the biological safety requirements and has a good application prospect.

Abstract: The present disclosure discloses a whole avian-origin reverse genetic manipulation system and its use in producing a recombinant H7N9 avian influenza vaccine. The whole avian-origin reverse genetic manipulation system is an eight-plasmid reverse genetic manipulation system based on H5N2 subtype avian influenza D7 virus strain, which is comprised of 8 recombinant plasmids respectively containing PB2, PB1, PA, HA, NP, NA, M and NS gene fragments derived from H5N2 subtype avian influenza D7 virus strain. The genome of the recombinant H7N9 subtype avian influenza vaccine of the present disclosure is comprised of an NA gene and a modified HA gene derived from a highly pathogenic H7N9 subtype avian influenza virus strain, as well as PB2, PB1, PA, NP, M and NS genes derived from H5N2 subtype avian influenza D7 virus strain.

Abstract: The present disclosure discloses a whole avian-origin reverse genetic system, a recombinant H5N2 subtype avian influenza virus, a vaccine containing the virus, and a preparation method and application thereof. The genome of the recombinant virus is comprised of a modified HA gene derived from a highly pathogenic H5N6 subtype avian influenza virus strain, as well as PB2, PB1, PA, NP, NA, M and NS genes derived from H5N2 subtype avian influenza D7 virus strain. The recombinant virus is a recombinant H5N2 avian influenza virus rescued from the D7 virus strain as a backbone, which is an avirulent virus strain with the original immunogenicity, and can maintain a high virus titer during the chick embryo culture process. The recombinant virus fully meets the biological safety requirements and has a good application prospect.

Abstract: A centrifugal compressor and a refrigerating device. The compressor includes: a shell, which has a fluid inlet at a first position of the shell, and a fluid outlet at a second position of the shell, a motor assembly, which is arranged in the shell and includes a stator and a rotor, the rotor including a vertically arranged rotor shaft, and the rotor shaft including a lower end and an upper end; a centrifugal compression mechanism, an impeller of which is connected with the rotor shaft so as to be driven by the motor assembly; and a guide member, which is located above the centrifugal compression mechanism, and which defines a flow passage alone or together with a top part of the shell.

Abstract: An ion generator, a fan coil unit and an air conditioning system. The ion generator includes: a power module; a negative plate connected to the power module; a ground plate spaced apart from a first side of the negative plate, the first side of the negative plate includes a plurality of plasma needles extending toward the ground plate; a positive plate spaced apart from a second side of the negative plate, the positive plate is connected to the power module and has a polarity opposite to that of the negative plate, and the respective sides of the negative plate and the positive plate that are facing toward each other are respectively provided with a plurality of carbon fiber brushes at corresponding positions.

Abstract: A centrifugal compressor and a refrigerating device. The compressor includes: a shell, which has a fluid inlet at a first position of the shell, and a fluid outlet at a second position of the shell, a motor assembly, which is arranged in the shell and includes a stator and a rotor, the rotor including a vertically arranged rotor shaft, and the rotor shaft including a lower end and an upper end; a centrifugal compression mechanism, an impeller of which is connected with the rotor shaft so as to be driven by the motor assembly; and a guide member, which is located above the centrifugal compression mechanism, and which defines a flow passage alone or together with a top part of the shell.

Abstract: The present disclosure provides a fan coil unit and an air conditioning system. The fan coil unit includes: a housing, which defines an airflow inlet, an airflow outlet, and an airflow path from the airflow inlet to the airflow outlet; a cross-flow fan, which is located at the airflow inlet to introduce an airflow into the housing; and a heat exchange unit located downstream of the cross-low fan on the airflow path.

Abstract: A rollover prevention system prevents a construction machine from rolling over. The rollover prevention system comprises a first angle detection unit (12) disposed adjacent to a turning joint (11) to detect a swing angle of the upper frame (5), a second angle detection unit (13) disposed on the upper frame to detect an angular movement of the upper frame, safety valves (40) disposed on flow passages (25, 32) communicating with hydraulic cylinders for a work attachment (10) and a swing motor (26) to control flows of working oil supplied to the hydraulic cylinders by opening and closing the flow passages in response to external signals, and an electronic controller (14) electrically connected to the first angle detection unit, the second angle detection unit, and the safety valves. The electronic controller comprises a barycenter calculating section (14a), a safety range determining section (14b), and a signal outputting section (14c). A rollover prevention method for a construction machine is also provided.

Abstract: A rollover prevention system prevents a construction machine from rolling over. The rollover prevention system comprises a first angle detection unit (12) disposed adjacent to a turning joint (11) to detect a swing angle of the upper frame (5), a second angle detection unit (13) disposed on the upper frame to detect an angular movement of the upper frame, safety valves (40) disposed on flow passages (25, 32) communicating with hydraulic cylinders for a work attachment (10) and a swing motor (26) to control flows of working oil supplied to the hydraulic cylinders by opening and closing the flow passages in response to external signals, and an electronic controller (14) electrically connected to the first angle detection unit, the second angle detection unit, and the safety valves. The electronic controller comprises a barycenter calculating section (14a), a safety range determining section (14b), and a signal outputting section (14c). A rollover prevention method for a construction machine is also provided.