Abstract: A three-dimensional culture method for large-scale preparation of stem cells, comprising a three-dimensional microcarrier-based cell resuscitation method, a three-dimensional microcarrier cell culture-based in situ passage method, a three-dimensional microcarrier in situ freeze preservation method for cells, a three-dimensional microcarrier cell adsorption culture method, a method for harvesting cells on a three-dimensional microcarrier, a method for sampling cells cultured on a microcarrier, and a three-dimensional microcarrier-based cell large-scale expansion method.

Abstract: Provided are a three-phase power conversion circuit for a household electrical appliance, a household electrical appliance, and a power-on control method for a household electrical appliance. The three-phase power conversion circuit includes a three-level active PFC unit, at least two power-on units, and a control unit. The three-phase power, subsequent to being converted by the three-level active PFC unit, obtains a first DC power and a second DC power to supply power to corresponding loads. The power-on unit is arranged at input terminals of the three-level active PFC unit to buffer a device in the three-level active PFC unit when the three-level active PFC unit is powered on. A first controllable switch module and a second controllable switch module in the power-on unit and the three-level active PFC unit are controlled by the control unit to complete buffering.

Abstract: Provided are a method for controlling a full bus load to discharge in a household electrical appliance and related apparatuses. In the method, in response to determining that a half bus load is turned on and a full bus load is turned off, a voltage difference between a first DC power and a second DC power is determined to obtain a voltage difference. The first DC power and the second DC power are obtained by converting three-phase power through a three-level active PFC unit. Subsequent to the voltage difference between the first DC power and the second DC power being determined, a full bus load is controlled to be turned on or off based on the voltage difference to stabilize a half bus voltage in a predetermined voltage interval.

Abstract: Provided herein is a method for preparing an emulsion, comprising the steps of allowing a dispersed phase liquid to flow from one side to the other side of a multi-hole plate through a plurality of micro-wells of the multi-hole plate while allowing a continuous phase liquid to flow, parallel to the multi-hole plate, on the other side of the multi-hole plate, shearing the dispersed phase liquid passing through the multi-hole plate to form liquid microspheres in the flowing continuous phase liquid. Further provided herein are an apparatus for preparing an emulsion and a process system for preparing microcarrier particles, which can be used for preparing emulsions and microcarrier particles on a large scale.

Abstract: The present invention discloses an SMA wire-driven reusable release mechanism having a self-resetting function. The present invention adopts a structure of two-stage load reduction and one-stage release. First-stage load reduction: a compression rod and a hoop petal, as well as an inclined block and a shell or a sliding block, all cooperate with each other by means of inclined surfaces, which can transfer most of tension load of the compression rod to the shell, leaving only a small part of the load transmitted to a thrust bearing. Second-state load reduction: balls in the thrust bearing are coated with a molybdenum disulfide lubricating coating, which can effectively reduce friction so as to reduce a torque transmitted to a driving shaft. First-stage release: the driving shaft drives a thrust bearing to rotate by a certain angle, causing an upper ring of the thrust bearing to descend to release a certain axial clearance.

Abstract: Provided herein is a method for preparing microcarrier particles, comprising the steps of allowing the dispersed phase liquid flow through a multi-hole plate at a low temperature to form liquid microspheres in a continuous phase, and enabling a synthetic polymer and/or natural biological macromolecules within the liquid microspheres to be subject to a curing reaction at a low temperature to form particles. Further provided herein are the method for preparing an emulsion and an apparatus and process system for preparing microcarrier particles, which can be used for preparing emulsions and microcarrier particles on a large scale.

Abstract: Provided herein is a method for preparing microcarrier particles, comprising the steps of allowing the dispersed phase liquid flow through a multi-hole plate at a low temperature to form liquid microspheres in a continuous phase, and enabling a synthetic polymer and/or natural biological macromolecules within the liquid microspheres to be subject to a curing reaction at a low temperature to form particles. Further provided herein are the method for preparing an emulsion and an apparatus and process system for preparing microcarrier particles, which can be used for preparing emulsions and microcarrier particles on a large scale.

Abstract: A three-dimensional culture method for large-scale preparation of stem cells, comprising a three-dimensional microcarrier-based cell resuscitation method, a three-dimensional microcarrier cell culture-based in situ passage method, a three-dimensional microcarrier in situ freeze preservation method for cells, a three-dimensional microcarrier cell adsorption culture method, a method for harvesting cells on a three-dimensional microcarrier, a method for sampling cells cultured on a microcarrier, and a three-dimensional microcarrier-based cell large-scale expansion method.

Abstract: The present invention relates to a motor, a circuit board and an engine cooling module including the motor. The motor includes a stator and a rotor. The stator includes a control module and a heat sink. The control module includes a circuit board and heat generating electronic components mounted on the circuit board. A bottom surface of the circuit board faces the heat sink. The heat generating electronic components are mounted on a top surface of the circuit board. Metal heat conducting members are embedded inside the circuit board at positions corresponding to the heat generating electronic components, and extend along a thickness direction of the circuit board. The heat generated by the heat generating electronic components is conducted from the top surface of the circuit board to the bottom surface of the circuit board. The present invention improves the heat dissipation effect of the motor.

Abstract: The present disclosure relates to a motor, a circuit board and an engine cooling module including the motor. The motor includes a stator, the stator includes a control module and a heat sink, the control module includes a circuit board and a plurality of heat generating electronic components mounted on a top surface of the circuit board, a plurality of ceramic heat conducting members is embedded inside the circuit board at positions facing the heat generating electronic components, and the heat sink is attached on a bottom surface of the circuit board. The motor has improved heat dissipation effect.

Abstract: The present disclosure discloses an aggregate of cell carrier particles and a method for preparing same. The aggregate of cell carrier particles is formed by aggregating cell carrier particles and has a particular shape including the shape of a tablet and the shape of a block. The method for preparing the aggregate of cell carrier particles is a punch-forming process, a mold-forming process, a lyophilization process or a dehydrating-evaporating process.

Abstract: A motor includes a stator, a rotor rotatable relative to the stator, a circuit board fixed to the stator, and a heat sink disposed on the circuit board, a side surface of the circuit board facing the heat sink has an insulating region and a metal heat dissipation region without solder mask. The thermal resistance between the circuit board and the heat sink can be reduced by the metal heat dissipation region, thereby improving the heat dissipation of the circuit board.

Abstract: A printed circuit board includes a substrate and an inductor, a first through hole defined in the substrate, the inductor including a magnetic core with a middle leg, the middle leg passes through the first through hole, and a conductive trace on at least one conductive layer of the printed circuit board spirally surrounds the first through hole to form conductive coil of the inductor. The present disclosure also provides a motor including a stator, a rotor, and the above described printed circuit board. The inductor is integrated with the printed circuit board, which reduces the size of the board and the motor and reduces material cost and power consumption.

Abstract: A printed circuit board includes a substrate and at least one heat generating electronic component mounted on the substrate. At least one ceramic heat conducting member is embedded into the printed circuit board at positions corresponding to the at least one heat generating electronic component. Side surfaces of the ceramic heat conducting member in contact with the printed circuit board are rough surfaces. Heat dissipation effect of the motor is improved.

Abstract: An integrated electrical pump comprises a motor, an oil pump driven by the motor, and a pressure control system. The pressure control system controls a hydraulic pressure of the oil pump according to a motor speed of the motor, an oil temperature and a pressure command. An oil pressure control method of the integrated electrical pump is also provided.

Abstract: A motor includes a stator, a rotor rotatable relative to the stator, a circuit board fixed to the stator, and a heat sink disposed on the circuit board, a side surface of the circuit board facing the heat sink has an insulating region and a metal heat dissipation region without solder mask. The thermal resistance between the circuit board and the heat sink can be reduced by the metal heat dissipation region, thereby improving the heat dissipation of the circuit board.

Abstract: The present disclosure relates to a motor, a circuit board and an engine cooling module including the motor. The motor includes a stator, the stator includes a control module and a heat sink, the control module includes a circuit board and a plurality of heat generating electronic components mounted on a top surface of the circuit board, a plurality of ceramic heat conducting members is embedded inside the circuit board at positions facing the heat generating electronic components, and the heat sink is attached on a bottom surface of the circuit board. The motor has improved heat dissipation effect.

Abstract: The present invention relates to a motor, a circuit board and an engine cooling module including the motor. The motor includes a stator and a rotor. The stator includes a control module and a heat sink. The control module includes a circuit board and heat generating electronic components mounted on the circuit board. A bottom surface of the circuit board faces the heat sink. The heat generating electronic components are mounted on a top surface of the circuit board. Metal heat conducting members are embedded inside the circuit board at positions corresponding to the heat generating electronic components, and extend along a thickness direction of the circuit board. The heat generated by the heat generating electronic components is conducted from the top surface of the circuit board to the bottom surface of the circuit board. The present invention improves the heat dissipation effect of the motor.

Abstract: An integrated electrical pump comprises a motor, an oil pump driven by the motor, and a pressure control system. The pressure control system controls a hydraulic pressure of the oil pump according to a motor speed of the motor, an oil temperature and a pressure command. An oil pressure control method of the integrated electrical pump is also provided.

Abstract: The present invention provides a method, device, and system for obtaining an address of a SIP registration server. The method includes: obtaining, by a branch device, a domain name system DNS resource record for specifying the location of service SRV response message; adding information of a SIP local survivable registration server to the DNS SRV response message; and returning the DNS SRV response message to which the information of the SIP local survivable registration server is added to a branch terminal, so that the branch terminal obtains an Internet protocol IP address of the SIP local survivable registration server according to the information of the SIP local survivable registration server in the DNS SRV response message. The solutions provided by the present invention ensure normal working of the branch terminal and saves costs.