Abstract: The present application provides a method for determining a stability of a welding equipment. The method includes acquiring initial welding images of the welding equipment; obtaining at least one welding spot position of each of at least one welded workpiece in each initial welding image by processing the initial welding images; determining a welding center position of each welded workpiece based on the at least one welding spot position of each welded workpiece, and obtaining welding center positions of all welded workpieces comprised in the initial welding images; and determining a stability of welding equipment based on the welding center positions of all welded workpieces. The method determines whether the welding equipment is stable by analyzing the welding images, thereby improving an accuracy of a detection of a stability of the welding equipment.

Abstract: An extrusion equipment adapted for supercritical foaming and mixing of a raw material includes a mixing unit, an injection unit for injection of supercritical fluid into the mixing unit, and an extrusion unit for extrusion of the raw material. The mixing unit includes a tube for input of the raw material, and a propelling screw rod and an auxiliary screw rod that are disposed side by side in the tube and that cooperatively compress and propel the raw material. The auxiliary screw rod rotates at a speed at least twice that of the propelling screw rod and in a direction opposite to that of the propelling screw rod.

Abstract: The present invention economically provides a method and device for producing a high-viscosity polylactic acid foam molding material which is suitable for foam molding at a high expansion ratio, and a foam molded article having a high expansion ratio which is formed of said polylactic acid composition. A polylactic acid foam molding material having an MI value of 0.05-5, measured in accordance with JIS K7210 at 190° C. under a 21.

Abstract: An extrusion equipment adapted for supercritical foaming and mixing of a raw material includes a mixing unit, an injection unit for injection of supercritical fluid into the mixing unit, and an extrusion unit for extrusion of the raw material. The mixing unit includes a tube for input of the raw material, and a propelling screw rod and an auxiliary screw rod that are disposed side by side in the tube and that cooperatively compress and propel the raw material. The auxiliary screw rod rotates at a speed at least twice that of the propelling screw rod and in a direction opposite to that of the propelling screw rod.

Abstract: The present invention economically provides a method and device for producing a high-viscosity polylactic acid foam molding material which is suitable for foam molding at a high expansion ratio, and a foam molded article having a high expansion ratio which is formed of said polylactic acid composition. A polylactic acid foam molding material having an MI value of 0.05-5, measured in accordance with JIS K7210 at 190° C. under a 21.

Abstract: The present disclosure relates to a personal data integration and management system and a method thereof wherein the system comprises a personal data processing and analysis application platform and a behavior recording and information request platform, both of which are connected to each other: the personal data processing and analysis application platform divides members' personal data into personal information and other reference information; the behavior recording and information request platform based on a signature of one member who initiates his/her action logins the personal data processing and analysis application platform to access other reference information as well as behavior information, configuring analysis-related conditions by which the personal data processing and analysis application platform enables statistics and analyses, transmitting analyzed data to the behavior recording and information request platform that delivers the analyzed data and other derived data to any predetermined demand