Abstract: A vacuum mass flow control apparatus and a control method thereof. The apparatus includes: a housing; a first flow channel disposed in the housing and having a first starting end and a first terminating end; a first sensor for collecting a signal of fluid in the first flow channel; a second flow channel disposed in the housing and having a second starting end and a second terminating end; a second sensor for collecting a vacuum flow rate in the second flow channel; a venturi tube having an inlet end, an outlet end and a negative pressure suction port; a regulating valve for regulating a flow-through cross-sectional area of the first flow channel; and a controller electrically connected to the regulating valve, the first sensor and the second sensor. The present disclosure improves structural integration, greatly reduces structural volume, and realizes real-time precise regulation in terms of control.

Abstract: This invention provides a reversible hydrogen loading and discharging system and a reversible method for loading and discharging hydrogen. The system and the methods of this invention comprise ethylene glycol as a liquid organic hydrogen carrier and at least one transition metal. By reacting ethylene glycol with at least one transition metal; at least one hydrogen molecule and at least one oligoester of ethylene glycol are formed (hydrogen releasing)?, and by reacting at least one oligoester of ethylene glycol with at least one transition metal and at least one hydrogen molecule, at least one ethylene glycol is formed (hydrogen loading).

Abstract: A method for threshing and pneumatic separation of tobacco leaves, including: 1) transporting a mixture of the tobacco slices and stems from a primary threshing set into primary pneumatic separation unit for sorting out tobacco slices, and transporting a remaining mixture into a secondary threshing set; 2) transporting the mixture from the secondary threshing set into a secondary pneumatic separation unit for sorting out the tobacco slices and qualified stems, and transferring a remaining mixture to a tertiary threshing set; 3) transporting the mixture from the tertiary threshing set into a tertiary pneumatic separation unit for sorting out the tobacco slices and the qualified stems, and transferring a remaining mixture into a quaternary threshing set; 4) transporting the mixture from the quaternary threshing set into a quaternary pneumatic separation unit for sorting out the tobacco slices and the qualified stems, and returning a remaining mixture to the quaternary threshing set.

Abstract: The present invention comprises: a separation silo, a discharge silo, a upper sidewall of the separation silo communicated with the discharge silo through a communication port, wherein an air curtain is disposed in the communication port to isolate the silos from each other, a discharge port is disposed at the bottom of the discharge silo, a suction outlet is mounted on the top of the separation silo, a feeding port is disposed at the lower part of a sidewall of the separation silo, which is precisely facing towards the underside of the end of the belt conveyer, a vibration trough is arranged at the lower part of the separation silo, a damper plate is disposed underside thereof, an air inlet is located underbelly thereof at the bottom of the separation silo, a rejection outlet is installed at the underside end of the vibrating trough.

Abstract: The present invention comprises: a separation silo, a discharge silo, a upper sidewall of the separation silo communicated with the discharge silo through a communication port, wherein an air curtain is disposed in the communication port to isolate the silos from each other, a discharge port is disposed at the bottom of the discharge silo, a suction outlet is mounted on the top of the separation silo, a feeding port is disposed at the lower part of a sidewall of the separation silo, which is precisely facing towards the underside of the end of the belt conveyer, a vibration trough is arranged at the lower part of the separation silo, a damper plate is disposed underside thereof, an air inlet is located underbelly thereof at the bottom of the separation silo, a rejection outlet is installed at the underside end of the vibrating trough.

Abstract: An across-application network communication method and device including loading and starting a plug-in module of a local application, and sending, by the plug-in module of the local application, account information of a user to a server of an opposite application; verifying, by a server of the opposite application, the user according to the account information of the user, and when the verification is passed, allowing the plug-in module of the local application to obtain information of the user in the opposite application; and obtaining, by the plug-in module of the local application, the information of the user in the opposite application. The method and device can implement across-application network communication, so as to combine different Internet applications perfectly.

Abstract: A method for threshing and pneumatic separation of tobacco leaves, including: 1) transporting a mixture of the tobacco slices and stems from a primary threshing set into primary pneumatic separation unit for sorting out tobacco slices, and transporting a remaining mixture into a secondary threshing set; 2) transporting the mixture from the secondary threshing set into a secondary pneumatic separation unit for sorting out the tobacco slices and qualified stems, and transferring a remaining mixture to a tertiary threshing set; 3) transporting the mixture from the tertiary threshing set into a tertiary pneumatic separation unit for sorting out the tobacco slices and the qualified stems, and transferring a remaining mixture into a quaternary threshing set; 4) transporting the mixture from the quaternary threshing set into a quaternary pneumatic separation unit for sorting out the tobacco slices and the qualified stems, and returning a remaining mixture to the quaternary threshing set.

Abstract: An across-application network communication method and device including loading and starting a plug-in module of a local application, and sending, by the plug-in module of the local application, account information of a user to a server of an opposite application; verifying, by a server of the opposite application, the user according to the account information of the user, and when the verification is passed, allowing the plug-in module of the local application to obtain information of the user in the opposite application; and obtaining, by the plug-in module of the local application, the information of the user in the opposite application. The method and device can implement across-application network communication, so as to combine different Internet applications perfectly.

Abstract: A main controller, control method and management system of online game are provided. The main controller includes: a directory serving unit, adapted to obtain all game directory information and notify the game directory information to a user, and to obtain the user's selection instruction used for selecting at least one game directory information of all the game directory information; and a game managing unit, adapted to establish and maintain a game service corresponding to the selected game directory information according to the selection instruction.

Abstract: A housing mechanism includes a housing, a defending element, and a magnetic unit. The housing has a cavity, and an opening defined in a sidewall of the housing. The opening communicates with the cavity. The defending element is rotatably attached to an inner side of the sidewall adjacent the opening. The magnetic unit is fixed adjacent to the opening and configured for causing the defending element to return to cover the opening by a magnetic force produced by the magnetic unit.