Sichuan University

Wu Zhao

Xin Guo

Miao Yu

Kai Zhang

Wenqiang Li

Wei Jiang

Ling Chen

Jun Li

Bo Wu

Xingyu Chen

Song Li

Nianhan Wu

Yiwei Jiang

Bing Lai

Lin Du

Zeyuan Yu

Chong Jiang

Hao Wan

Chen Chen

Yan Li

Kai Wang

Zhong Tang

Qianmiao Zhou

Hongbiao Sun

Chuanxiao Li

Sitong Ling

Zida Zhang

Zhe Li

Mengkui Li

Mingyue Yang

Zihao Cheng

Zechuan Huang

A method for extracting a kansei adjective of a product based on principal component analysis and explanation (PCA-E) includes constructing a product kansei evaluation vector matrix through original kansei adjectives; performing dimensionality reduction through PCA; and determining, based on principal component load factors, kansei adjectives representing principal components. In this way, the kansei adjectives extracted are explanatory to help users understand the selected kansei adjectives and make accurate evaluation.

Method for extracting kansei adjective of product based on principal component analysis and explanation (PCA-E)

A preset three-stage adjustable downhole choke with choking and pressure measurement functions includes an intake assembly for natural gas filtration, an electrically-controlled telescopic assembly for positioning and clamping the downhole choke with a prefabricated seating nipple, and a three-stage choking assembly for natural gas choking and depressurization. The intake assembly, the electrically-controlled telescopic assembly, and the three-stage choking assembly are sequentially communicated from bottom to top. A first-stage control choke, a second-stage adjustable control choke, and a third-stage control choke are sequentially provided in a gas passage of the three-stage choking assembly from bottom to top. The preset three-stage adjustable downhole choke features convenient installation and removal, three-stage choking and depressurization, and an adjustable orifice diameter of a control choke, and can achieve different choking and depressurization effects.

Preset three-stage adjustable downhole choke with choking and pressure measurement functions

This application relates to lubrication, and more particularly to an external cooling MQL manipulator and a machine tool and a lubrication method using the machine tool. The external cooling MQL manipulator includes a suspension structure, a robot arm, a controller and an oil mist generator. The suspension structure fixedly connects the robot arm and a frame, and a nozzle is provided on a free end of the robot arm; an oil mist generator is connected to the nozzle for ejecting oil mists to a processing area. When the machine tool works, the controller selects the corresponding lubrication parameters according to the processing parameters such as the cutter type and the workpiece material. The first motor and the second motor are controlled to rotate by the controller according to real-time changes of the processing positions detected by the detecting component, thereby adjusting the position of the nozzle.

External cooling MQL manipulators and machine tools and lubrication method using machine tools

This disclosure relates to reactor control, and more particularly to a control rod drive mechanism and a reactor control system. The control rod drive mechanism includes a lifting-lowering assembly, a mounting assembly and a release assembly. The mounting assembly is configured to mount a control rod. The lifting-lowering assembly includes a fixing component, a scissor-type lifting-lowering mechanism and a lifting-lowering component. An end of the scissor-type lifting-lowering mechanism is connected to the fixing component, and the other end is connected to the lifting-lowering component. The scissor-type lifting-lowering mechanism is configured to drive the lifting-lowering component to move close to or away from the fixing component. The release assembly is movably arranged on the lifting-lowering component, and is detachably connected to the mounting assembly. The release assembly is configured to move relative to the lifting-lowering component when power is off to release the mounting assembly.

Control rod drive mechanism and reactor control system

A self-adaptive luggage transfer device and system. The self-adaptive luggage transfer device includes a base, a conveyor mechanism, a lifting mechanism and a self-adaptive extendable transfer mechanism. The lifting mechanism is arranged between the conveyor mechanism and the base and is configured to drive the conveyor mechanism to lift. The self-adaptive extendable transfer mechanism is obliquely arranged between the conveyor mechanism and the base and is in transmission connection with the lifting mechanism. Two ends of the self-adaptive extendable transfer mechanism are movably connected to an output end of the conveyor mechanism and the base, respectively. The conveyor mechanism is configured to drive an end of the self-adaptive extendable transfer mechanism connected to the conveyor mechanism to lift in a first direction, and the lifting mechanism is configured to drive at least one end of the self-adaptive extendable transfer mechanism to move in a second direction.

Self-adaptive luggage transfer device and system

Disclosed is a connector for high data transfer rate, including a female element, a male element. The female element includes a housing, a plurality of sheets and a first shielding plate. The male element includes a base, a differential signal contact and a second shielding plate. At least two sheets are provided on the housing, and the first shielding plate is provided between adjacent sheets. The second shielding plate corresponding to the sheets is provided on the base. A signal pin is provided at a bottom of the sheets. The differential signal contact is provided in the base. The housing is matched with the base, and the signal pin is configured to contact the differential signal contact. The connector of the present invention improves space utilization rate in the longitudinal direction, assembly efficiency and fault tolerance rate thereof.

Connector for high data transmission rate

Disclosed is an adjustable ultrasonic micro-jet nozzle array with minimal quantity lubrication, relating to cooling of machining. The array-type nozzle includes an inlet conduit, a recycle conduit and a cooling body having a microjet ejection assembly and a recycling assembly. The cooling body includes a microjet ejection chamber which is closed. The inlet conduit is provided at a top of the cooling body and communicates with the microjet ejection chamber. The recycle conduit is located in the microjet ejection chamber, and connects the recycling assembly and an external vacuum machine. The adjustable ultrasonic micro jet nozzle array of the present invention has the advantages of simple structure and being convenient to use. A flow rate of trace cooling fluid is increased to improve the cooling and lubricating effect. A cooling fluid mist is recycled by the vacuum suction to reduce the consumption of the lubricating fluid while ensuring the cooling effect.

Adjustable ultrasonic micro-jet nozzle array with minimal quantity lubrication

Growing community of inventors

Sichuan, China

Wu Zhao