Abstract: A shareable battery pack for a portable ultrasonic apparatus, a trolley, a power supply system, and a portable ultrasonic system. The trolley can be connected to the portable ultrasonic apparatus and/or the shareable battery pack to supply power so as to extend operation time. Alternatively, the trolley is used to support the portable ultrasonic apparatus and/or the shareable battery pack without supplying power to extend operation time. In an embodiment, the shareable battery pack can be removed from the trolley, and then be fixedly connected to the portable ultrasonic apparatus to form an integral unit and serve as an external battery for the portable ultrasonic apparatus. Such design enables the portable ultrasonic apparatus to have extended operation time without relying on the trolley and requires only one shareable battery pack in special situations, thereby enhancing convenience of use.

Abstract: A floating mechanism (300) and an ultrasonic diagnostic apparatus. The floating mechanism (300) and the ultrasonic diagnostic apparatus can implement the direct superposition of lifting movements and rotational movements, so that the floating mechanism (300) can move in more directions. In addition, a lifting structure and a rotation structure in the floating mechanism (300) are integrally linked in design, accordingly, the link performance is good, the response is fast, the occupied space is small, and the operation range is great.

Abstract: A floating mechanism (300) and an ultrasonic diagnostic apparatus. The floating mechanism (300) and the ultrasonic diagnostic apparatus can implement the direct superposition of lifting movements and rotational movements, so that the floating mechanism (300) can move in more directions. In addition, a lifting structure and a rotation structure in the floating mechanism (300) are integrally linked in design, accordingly, the link performance is good, the response is fast, the occupied space is small, and the operation range is great.

Abstract: A shareable battery pack for a portable ultrasonic apparatus, a trolley, a power supply system, and a portable ultrasonic system. The trolley can be connected to the portable ultrasonic apparatus and/or the shareable battery pack to supply power so as to extend operation time. Alternatively, the trolley is used to support the portable ultrasonic apparatus and/or the shareable battery pack without supplying power to extend operation time. In an embodiment, the shareable battery pack can be removed from the trolley, and then be fixedly connected to the portable ultrasonic apparatus to form an integral unit and serve as an external battery for the portable ultrasonic apparatus. Such design enables the portable ultrasonic apparatus to have extended operation time without relying on the trolley and requires only one shareable battery pack in special situations, thereby enhancing convenience of use.

Abstract: This invention discloses a primer, a kit and a method for testing Taihe black chicken egg. The described primer includes: as shown in SEQ ID No. 1, SEQ ID No. 2, SEQ ID No. 3 and SEQ ID No. 4. The described test method comprises the following steps: extract the genomic DNA of the egg to be tested, propagate the genomic DNA by two-step PCR, and perform genotyping according to the base at 68 bp of the gene sequence of the second-step PCR product. If the base at that site is G, the egg is a Taihe black chicken egg; if the base at that site is C, the egg is a non-Taihe black chicken egg. The variable site targeted by this invention is unique to Taihe black chicken egg.

Abstract: A floating mechanism comprises a lift arm, a translation arm and a connection frame. One end of the lift arm is rotatably connected to the connection frame which is also rotatably connected to the translation arm. The lift arm drives the translation arm to rotate and move up and down between two intersecting planes with a fulcrum at the other end of the lift arm opposite to the translation arm. The translation arm can also be translated in a translational plane intersecting the lift arm with the connection point of the translation arm and the connecting frame as an axis. The lift arm and the translation arm of the floating mechanism can together drive an operating panel to move up and down in a vertical plane and to translate front and back, and left and right in a translation plane; meanwhile, the operating panel can be driven to rotate in the translation plane along with the lift arm and the translation arm.

Abstract: A lock device is disclosed, which includes: a holder which is provided with a through hole running through the holder and a slide intersecting with the through hole; a guide bar, which is provided with an outer threaded area on at least a portion of a surface and passes through the through hole, and the outer threaded area is located where the through hole intersects with the slide; a lock component received in the slide, and the end of the lock component facing toward the guide bar is provided with a lock threaded area which can engage with the outer threaded area of the guide bar; and a drive assembly which drives a lock assembly to move toward or away from the guide bar in the slide. The guide bar is locked when threads on the lock threaded area engage with outer threads on the outer threaded area.

Abstract: A floating mechanism comprises a lift arm, a translation arm and a connection frame. One end of the lift arm is rotatably connected to the connection frame which is also rotatably connected to the translation arm. The lift arm drives the translation arm to rotate and move up and down between two intersecting planes with a fulcrum at the other end of the lift arm opposite to the translation arm. The translation arm can also be translated in a translational plane intersecting the lift arm with the connection point of the translation arm and the connecting frame as an axis. The lift arm and the translation arm of the floating mechanism can together drive an operating panel to move up and down in a vertical plane and to translate front and back, and left and right in a translation plane; meanwhile, the operating panel can be driven to rotate in the translation plane along with the lift arm and the translation arm.

Abstract: A packet processing method and a background server are provided. The packet processing method includes: receiving, by a bearer system of a background server, an IPIP packet sent by an access server via an IP tunnel; and removing a reverse proxy IP address and a windows server IP address that are in an outer layer of the IPIP packet, and changing a destination IP address in the IPIP packet, of which the reverse proxy IP address and the windows server IP address are removed, into the windows server IP address, to obtain an IP packet.

Abstract: According to an example, a web server receives an access request from one operator network of different operator networks, process the access request, and obtain processing data. The web server determines an output VIP address corresponding to an input VIP address carried in the access request according to a relationship between input VIP addresses and output VIP addresses of VS clusters of the different operator networks, and sends the processing data to a VS cluster indicated by the output VIP address via an internal network. The VS cluster selects one VS, and the VS selected sends the processing data to a user terminal via an external network.

Abstract: A system providing network access based on application layer data, including at least one client device, an access server, and a background server group. The client device is configured to establish a TCP connection with the access server and send a data request to the access server through the TCP connection. The access server is configured to select a background sever serving the client device from the background server group according to the data request, and send TCP information initiated in the TCP connection to the selected background server. The selected background server is configured to directly send data to the client device according to the TCP information.

Abstract: A lock device is disclosed, which includes: a holder which is provided with a through hole running through the holder and a slide intersecting with the through hole; a guide bar, which is provided with an outer threaded area on at least a portion of a surface and passes through the through hole, and the outer threaded area is located where the through hole intersects with the slide; a lock component received in the slide, and the end of the lock component facing toward the guide bar is provided with a lock threaded area which can engage with the outer threaded area of the guide bar; and a drive assembly which drives a lock assembly to move toward or away from the guide bar in the slide. The guide bar is locked when threads on the lock threaded area engage with outer threads on the outer threaded area.

Abstract: A packet processing method and a background server are provided. The packet processing method includes: receiving, by a bearer system of a background server, an IPIP packet sent by an access server via an IP tunnel; and removing a reverse proxy IP address and a windows server IP address that are in an outer layer of the IPIP packet, and changing a destination IP address in the IPIP packet, of which the reverse proxy IP address and the windows server IP address are removed, into the windows server IP address, to obtain an IP packet.

Abstract: According to an example, a web server receives an access request from one operator network of different operator networks, process the access request, and obtain processing data. The web server determines an output VIP address corresponding to an input VIP address carried in the access request according to a relationship between input VIP addresses and output VIP addresses of VS clusters of the different operator networks, and sends the processing data to a VS cluster indicated by the output VIP address via an internal network. The VS cluster selects one VS, and the VS selected sends the processing data to a user terminal via an external network.

Abstract: A system providing network access based on application layer data, including at least one client device, an access server, and a background server group. The client device is configured to establish a TCP connection with the access server and send a data request to the access server through the TCP connection. The access server is configured to select a background sever serving the client device from the background server group according to the data request, and send TCP information initiated in the TCP connection to the selected background server. The selected background server is configured to directly send data to the client device according to the TCP information.

Abstract: A puncture needle holder comprising a base frame, a link bar, a first seat part, a second seat part, and a positioning mechanism is disclosed.

Abstract: A puncture needle holder comprising a base frame, a link bar, a first seat part, a second seat part, and a positioning mechanism is disclosed.

Abstract: A socket connector comprises a circuit board with a socket part mounted on the outside thereof; a socket shield part; a metal shield plate with a through-slot, on the outside of which the socket shield part is mounted; a shield shell with openings on the wall thereof, forming into a shield chamber for fitting a plug and arranged on the socket shield part; and elastic shielding sheets, snapped into the openings and protruding outwards from the openings, wherein the socket part is inserted into the shield chamber formed by the shield shell through the through-slot of the metal shield plate.

Abstract: An investment portfolio and a method of selecting investment portfolio components, contrary to the risks suggested by the literature in doing so, overweight less liquid investments, and underweight more liquid ones, relative to some liquidity-neutral benchmark portfolio weights for some or all of the components of the portfolio.

Abstract: A socket connector comprises a circuit board with a socket part mounted on the outside thereof; a socket shield part; a metal shield plate with a through-slot, on the outside of which the socket shield part is mounted; a shield shell with openings on the wall thereof, forming into a shield chamber for fitting a plug and arranged on the socket shield part; and elastic shielding sheets, snapped into the openings and protruding outwards from the openings, wherein the socket part is inserted into the shield chamber formed by the shield shell through the through-slot of the metal shield plate.