Abstract: The present disclosure provides a pump body assembly, a heat exchange apparatus, a fluid machine and an operating method thereof. The pump body assembly includes a piston, a shaft, a piston sheath, and a cylinder. The shaft drives the piston to rotate and reciprocate within the piston sheath while rotating. The piston sheath is located in the cylinder, and a compression chamber is defined between an outer circumferential wall of the piston and an inner wall of the cylinder. A pressure relief recess is defined in the outer circumferential wall of the piston or the inner wall of the cylinder at a position corresponding to the compression chamber.

Abstract: An indoline compound. Specifically disclosed is an application of a compound represented by formula (I) and pharmaceutically acceptable salts thereof in the preparation of drugs for treating related diseases.

Abstract: An integrated system for art examination includes a power module, an information receiving and a storage module, an information processing module, a control module, a display module, a paper printing module, and a paper processing module; the information receiving and storage module is used to receive and transmit an examinees registration information, an examination room information and an on-site identity information to the information processing module; the information processing module is used to verify whether the examinees registration information is consistent with the on-site identity information and transmits a conclusion to the control module; the control module controls the display module, the paper printing module and the paper processing module; the display module is used to display information to guide an exam worker how to operate, and an input of the examinee's on-site identity information is completed on the display module through a human-computer interaction.

Abstract: A method and a system for obtaining a product prototype based on an eye movement data. The method comprises the following steps: Obtaining A front-side view of the target product for establishing a underlying sample library; The target product is divided into several detection areas according to its structure or function features, and the eye movement is detected to obtain the fixation time of the target product The invention adopts computer and image collecting technology to process the observation data of human eyes, and adopts K-means clustering to obtain the prototype of the target product, to assist the designer to grasp the categories of personal interest contour, so as to improve the design effect of product appearance.

Abstract: An AR-based supplementary teaching system for guzheng and method thereof, the system includes an AR device, a data processing device and positioning devices for key positions, the data processing device is signal-connected to the AR device, and the positioning devices is installed on the guzheng code of guzheng, the positioning devices corresponds to the guzheng code of guzheng one by one; the AR device is used to obtain real scene data; the data processing device is used to guzheng and the positioning devices identify and generate string distribution data; also used to obtain operation instruction based on user actions, execute the operation instruction and generate virtual data; the AR device is also used to convert all data based on the string distribution data The virtual data and the real scene data are superimposed and displayed.

Abstract: A method and a system for extracting vocabulary for imagery of a product, including: collecting a comment text data of a target product, segmenting the comment text data to obtain an evaluation vocabulary; extracting a high-frequency word used to evaluate an appearance as a central word from the evaluation vocabulary, and extracting an adjective from the evaluation vocabulary to obtain the adjectives; converting the evaluation vocabulary into a word vector, calculating a similarity between each adjectives and the central word based on the word vector, extracting a corresponding adjectives according to the similarity as an original vocabulary for imager; clustering the original vocabulary for imagery, exacting the corresponding original vocabulary for imagery according to a clustering result as a vocabulary for imagery, which can extract the vocabulary for imagery based on the comment text data, reduce the labor cost, and improve the extraction efficiency.

Abstract: A method and a system for obtaining a product prototype based on an eye movement data. The method comprises the following steps: Obtaining A front-side view of the target product for establishing a underlying sample library; The target product is divided into several detection areas according to its structure or function features, and the eye movement is detected to obtain the fixation time of the target product The invention adopts computer and image collecting technology to process the observation data of human eyes, and adopts K-means clustering to obtain the prototype of the target product, to assist the designer to grasp the categories of personal interest contour, so as to improve the design effect of product appearance.

Abstract: An AR-based supplementary teaching system for guzheng and method thereof, the system includes an AR device, a data processing device and positioning devices for key positions, the data processing device is signal-connected to the AR device, and the positioning devices is installed on the guzheng code of guzheng, the positioning devices corresponds to the guzheng code of guzheng one by one; the AR device is used to obtain real scene data; the data processing device is used to guzheng and the positioning devices identify and generate string distribution data; also used to obtain operation instruction based on user actions, execute the operation instruction and generate virtual data; the AR device is also used to convert all data based on the string distribution data The virtual data and the real scene data are superimposed and displayed.

Abstract: An integrated system for art examination includes a power module, an information receiving and a storage module, an information processing module, a control module, a display module, a paper printing module, and a paper processing module; the information receiving and storage module is used to receive and transmit an examinees registration information, an examination room information and an on-site identity information to the information processing module; the information processing module is used to verify whether the examinees registration information is consistent with the on-site identity information and transmits a conclusion to the control module; the control module controls the display module, the paper printing module and the paper processing module; the display module is used to display information to guide an exam worker how to operate, and an input of the examinee's on-site identity information is completed on the display module through a human-computer interaction.

Abstract: A plug assembly, a compressor starter and a compressor assembly are provided. The plug assembly includes a plug body defining at least one mounting through hole therein and a connecting post passing through the mounting through hole. Each connecting post has a first end located in the mounting through hole to be configured for plug-in connection with a terminal of the compressor, and a second end extending beyond the mounting through hole to be configured for connection with a control board.

Abstract: A method and a device for obtaining a customer traffic distribution are provided. The method comprises steps of: obtaining position information of mobile terminals; determining at least one cluster center in a preset range and a heat value of each cluster center according to the position information; and generating the customer traffic distribution according to the at least one cluster center and the heat values.

Abstract: A method and a device for obtaining a customer traffic distribution are provided. The method comprises steps of: obtaining position information of mobile terminals; determining at least one cluster center in a preset range and a heat value of each cluster center according to the position information; and generating the customer traffic distribution according to the at least one cluster center and the heat values.