Abstract: The present invention discloses an automatic security cylinder system comprising one or more cylinder which are provided with cylinder valves, the cylinder valves are connected with an electronic control device which can realize signal transmission with the controller, the electronic control device is opened by the controller, so that the gas in the upper cavity is discharged outward, the pressure of the upper cavity decreases, and the piston moves upward, so as to realize the automatic opening of the valve port, the medium in the cylinder is released outward through the nozzle, the electronic control device is closed by the controller, and the piston moves down and reset, so as to realize the automatic closing of the valve port and stop the nozzle releasing the medium. The present invention has the functions of automatic starting and resetting, thereby realizing multiple medium releasing. The present invention also discloses an automatic control method of an automatic security cylinder system.

Abstract: A housing for use in high-pressure fluid applications, and in particular a structure for the fluid end of a multi-cylinder reciprocating pump used in oilfield, wherein the structure includes features such as ruled surfaces and increased sidewall thickness to improve resistance to stress applied and has an extended the service life.

Abstract: A housing for use in high-pressure fluid applications, and in particular a structure for the fluid end of a multi-cylinder reciprocating pump used in oilfield, wherein the structure includes features such as ruled surfaces and increased sidewall thickness to improve resistance to stress applied and has an extended the service life.

Abstract: A housing for use in high-pressure fluid applications, and in particular a structure for the fluid end of a multi-cylinder reciprocating pump used in oilfield, wherein the structure includes features such as ruled surfaces and increased sidewall thickness to improve resistance to stress applied and has an extended the service life.

Abstract: An Emulator (EMU) configures a monitoring condition relevant with critical data of a game role, when the monitoring condition is met, the EMU transmits the critical data of the game role to a server; the server analyzes the critical data of the game role; when determining that the critical data of the game role is unusual, the server determines that the game role has used a plug-in.

Abstract: Methods, apparatus and system of detecting data security are provided herein. Data for detection are acquired. Whether the data for detection are to be updated for a first time is determined. When the data for detection are to be updated for the first time, the data for detection can be updated, encrypted, and stored as first encrypted data. When the data for detection are not to be updated for the first time, the data for detection can be acquired and encrypted to provide second encrypted data. The second encrypted data are compared with the stored first encrypted data to determine whether the second encrypted data having been unauthorizedly modified. The present disclosure is simple to be implemented without relying on specific logical of a certain application. Development costs, maintenance costs and occupancy of server resources can be reduced. System performance and user experience can be improved.

Abstract: A housing for use in high-pressure fluid applications, and in particular a structure for the fluid end of a multi-cylinder reciprocating pump used in oilfield, wherein the structure includes features such as ruled surfaces and increased sidewall thickness to improve resistance to stress applied and has an extended the service life.

Abstract: A voice transmission system includes at least one electronic device and a controller. The at least one electronic device is connected to an internet. The controller is connected to the at least one electronic device over a wireless local area network channel for conducting a unidirectional voice transmission. The at least one electronic device includes a first communication module and a speaker unit. The first communication module receives a first voice signal from the internet, and the speaker unit plays the first voice signal. The controller includes a voice receiving unit and a second communication module. The voice receiving unit receives a second voice signal, and the second communication module transmits the second voice signal to the first communication module of the at least one electronic device over the wireless local area network. The first communication unit further transmits the second voice signal received to the internet.

Abstract: An Emulator (EMU) configures a monitoring condition relevant with critical data of a game role, when the monitoring condition is met, the EMU transmits the critical data of the game role to a server; the server analyzes the critical data of the game role; when determining that the critical data of the game role is unusual, the server determines that the game role has used a plug-in.

Abstract: Methods, apparatus and system of detecting data security are provided herein. Data for detection are acquired. Whether the data for detection are to be updated for a first time is determined. When the data for detection are to be updated for the first time, the data for detection can be updated, encrypted, and stored as first encrypted data. When the data for detection are not to be updated for the first time, the data for detection can be acquired and encrypted to provide second encrypted data. The second encrypted data are compared with the stored first encrypted data to determine whether the second encrypted data having been unauthorizedly modified. The present disclosure is simple to be implemented without relying on specific logical of a certain application. Development costs, maintenance costs and occupancy of server resources can be reduced. System performance and user experience can be improved.