Abstract: A robotic welding device including a control box configured to pre-store various welding processes and generate a welding parameter. A wire feed mechanism configured to feed a welding wire to a welding gun and a flexible guide rail attached to a welding component. A welding robot including a robot body and a welding gun. A teaching apparatus in communication with the welding robot and the control box, controlling, a traveling path and an operation position of the welding robot, and adjusting oscillation and welding operations of the welding gun according to an instruction of the control box. A remote control terminal in communication with the control box, and in communication with a data acquisition device of the welding robot. The robotic welding device including a welding power supply.

Abstract: A zero-phase calibration method includes: selecting a group of range combinations with the same ranges and a group of adjacent range combinations consisting of the range and a smaller range adjacent to the range between different channels of a wide-range meter, measuring phase calibration parameters between channel signals of the group of range combinations with the same ranges and phase calibration parameters between channel signals of the group of adjacent range combinations, storing the measured phase calibration parameters in a memory, invoking the measured phase calibration parameters stored in the memory to calculate phase calibration parameters between channel signals of each of the remaining range combinations of the wide-range meter level by level, and storing the calculated phase calibration parameters in the memory, invoking corresponding phase calibration parameters stored in the memory to calibrate zero-phase points between different channels of signals of the meter while calibrating the wide-ran

Abstract: This application provides a dialog processing method and apparatus for a virtual scene, an electronic device, a storage medium, and a computer program product; and the method includes: invoking, based on at least one input statement, field dialog models respectively corresponding to at least one participating object of a current round to perform dialog generation, to obtain a plurality of output statements of each participating object; invoking, based on each output statement, a general dialog model to perform quality prediction, to obtain a quality parameter of each output statement, the general dialog model being obtained through training based on a dialog sample in a general field; and selecting a dialog statement of the current round from the plurality of output statements based on the quality parameter of each output statement.

Abstract: A hydraulic door closer including an elongated housing, a connection rod extending into the housing, a piston secured at an inner end of the connection rod within the housing and a spring positioned within the housing about the connection rod. A throttle valve and a check valve are formed in the piston and define a throttle-valve fluid passage and a check-valve fluid passage, respectively. Both fluid passages are configured to be open for passing a fluid through the valves and closed to stop the fluid flow. The check-valve fluid passage is larger than the throttle-valve fluid passage and is closed during door closing for restricted fluid flow slowing the door motion. A stopping/holding mechanism includes a piston groove, a rod groove and a positioning pin disposed between the piston and the connection rod. The piston groove is defined by the piston for retaining the entire positioning pin during door opening/closing motion.

Abstract: The present invention provides a method for recombinant production, recovery and purification of endostatin protein. This method may be employed for large scale recovery and purification of recombinantly-produced endostatin protein.

Abstract: The present invention provides a method for recombinant production, recovery and purification of angiostatin protein. This method may be employed for large scale recovery and purification of recombinantly-produced angiostatin protein.

Abstract: The present invention provides a method for recombinant production, recovery and purification of angiostatin protein. This method may be employed for large scale recovery and purification of recombinantly-produced angiostatin protein.

Abstract: Polymer polyols and polymer-modified polyols having substantially no transition metal content in the polyol continuous phase may be prepared from encapsulative double metal cyanide complex-catalyzed polyoxyalkylene polyether base polyols without substantial removal of double metal cyanide complex catalyst residues from the base polyol and subsequent in situ polymerization of one or more polymerizable monomers.

Abstract: Polymer polyols and polymer-modified polyols having substantially no transition metal content in the polyol continuous phase may be prepared from encapsulative double metal cyanide complex-catalyzed polyoxy-alkylene polyether base polyols without substantial removal of double metal cyanide complex catalyst residues from the base polyol and subsequent in situ polymerization of one or more polymerizable monomers.

Abstract: Polymer polyols and polymer-modified polyols having substantially no transition metal content in the polyol continuous phase may be prepared from encapsulative double metal cyanide complex-catalyzed polyoxyalkylene polyether base polyols without substantial removal of double metal cyanide complex catalyst residues from the base polyol and subsequent in situ polymerization of one or more polymerizable monomers.

Abstract: Polymer polyols prepared by a semi-batch process using a small amount of a seed polymer polyol are disclosed. The final polymer polyol has a broader particle size distribution as compared to an identically prepared polymer polyol prepared in the absence of the seed polymer polyol. The polymer polyols are suitable for use in producing polyurethanes, particularly polyurethane foams.