Abstract: The present disclosure provides a control method, apparatus, and device for a compressor, a storage medium, and a refrigerator system. The control method includes: obtaining an electrical parameter, a return air parameter, and a first frequency of the compressor during operation of the compressor; determining a first fitting formula corresponding to the first frequency; obtaining an exhaust pressure by inputting the electrical parameter and the return air parameter into the first fitting formula for calculation; and controlling the compressor based on the exhaust pressure. In this way, the pressure sensor disposed on an exhaust side of an air conditioner can be omitted, hence cost is saved; or for the air conditioner with the pressure sensor on the exhaust side, the above manner for calculation can be an alternative to obtaining the exhaust pressure, which ensures a user's normal use and thus improves the user experience.

Abstract: A method of preparing an antibody carrying a universal site-directed coupling interface based on a genetically modified vertebrate is described. The method of constructs a vertebrate model, the vertebrate model is used to produce an antibody carrying a universal site-directed coupling interface. The method includes site-directly knocking in a coding gene of a specific recognition sequence of a certain ligase A or a coding gene of a certain intein A at a certain position A of a certain coding gene A of the immunoglobulin in the genome of the recipient animal, to obtain the vertebrate model. The modified mice can normally stimulate immune responses, produce a polyclonal antibody and a monoclonal antibody with a site-directed linking site. Antibodies with a site-directed linking site can normally carry out site-directed linking, and add various application groups to realize downstream applications of antibodies, such as ELISA, immunofluorescence staining, and immuno-PCR.

Abstract: A well cementing method is described for improving cementing quality by controlling the hydration heat of cement slurry. By controlling the degree and/or rate of hydration heat release from cement slurry, the method improves the hydration heat release during formation of cement with curing of cement slurry, improves the binding quality between the cement and the interfaces, and in turn improves the cementing quality at the open hole section and/or the overlap section. The cementing method improves cementing quality of oil and gas wells and reduces the risk of annular pressure.

Abstract: A rotator cuff balloon (10) includes a limiting structure (100) and a protective structure (200) connected to the limiting structure (100). The limiting structure (100) has a curvature along a coronal plane (102). This rotator cuff balloon (10) conforms to the physiological structure of the shoulder joint in the human body, limits itself in the subacromial space and can reduce a patient's foreign body sensation, dislocation, functional failure and other adverse events. The protective structure (200) is configured to be supported in the space between the humeral head and the acromion of the shoulder joint in the human body to provide support. Moreover, the humeral head of a patient with a rotator cuff injury is raised, avoiding pain arising from inter-tissue collisions, increasing the moment arm of the deltoid muscle and resulting in immediate improvements in the functions of the patient's shoulder joint.

Abstract: Disclosed are a self-switching transmission assembly, a balloon, and a prosthesis for use in a shoulder joint. The self-switching transmission assembly comprises: a communicating tube (11, 11?, 11?) comprising an input end (111, 111?, 111?) and an output end (112, 112?, 112?); an external connection tube (12, 12?, 12?), an end portion thereof being insertable into the communicating tube (11, 11?, 11?) from the input end (111, 111?, 111?) and removable from the communicating tube (11, 11?, 11?) from the input end (111, 111?, 111?); and a sealing tube (13, 13?, 13?), which can be placed in a tube body of the communicating tube (11, 11?, 11?) and moved axially relative to the tube body of the communicating tube (11, 11?, 11?).

Abstract: A rotator cuff balloon (10) is disclosed, the rotator cuff balloon (10) includes a limiting structure (100) and a protective structure (200) connected to the limiting structure (100). The limiting structure (100) defines a curvature along a coronal plane. The rotator cuff balloon (10) conforms to the physiological structure of the human shoulder joint limits itself in the subacromial space and can reduce a patient's foreign body sensation, dislocation, functional failure and other adverse events.

Abstract: A drive shaft (1, 3) for use with a rotation device (10, 20) includes an outer layer (11, 31) and an inner layer (12, 32). The outer layer is a tubular structure, and the inner layer is accommodated in a space defined by the outer layer and defines a central lumen (13, 33) for receiving therein an external mechanism. The outer layer is rotatable about the central lumen, and the inner layer is rollable relative to both the outer layer and the external mechanism and thus allows rolling friction to occur between the drive shaft and the external mechanism. Such a structure of the drive shaft can reduce friction between the drive shaft and a guidewire as well as loss due to such friction, avoiding failure of the guidewire due to excessive friction between the guidewire and the drive shaft. Therefore, it is ensured that the drive shaft is suitable for use with guidewires commonly used in clinical practice, resulting in improved surgical operability and lower surgical cost.

Abstract: The present disclosure relates to a rotational atherectomy device and a medical device including the rotational atherectomy device. The rotational atherectomy device includes a drive shaft and a rotational atherectomy component connected to the drive shaft. The rotational atherectomy component includes a base and a rotational atherectomy block. The rotational atherectomy block is relatively movably assembled on the base. When the rotational atherectomy component rotates, the rotational atherectomy block moves in a direction away from the base.

Abstract: A display substrate includes: a base substrate, as well as a first metal layer, a first insulating layer, a second metal layer, a second insulating layer, and a common electrode metal layer laminated on one side of the base substrate. The common electrode metal layer includes metal line segments and connecting line segments. The metal line segments include first metal line segments and second metal line segments. The connecting line segments connect the adjacent first and second metal line segments. Each connecting line segment is provided with a maintenance line segment. Orthographic projections of the maintenance line segments on the base substrate do not overlap those of gate lines and data lines on the base substrate. The spacing between the orthographic projections of the maintenance line segments and those of the gate lines and data lines is greater than or equal to a preset distance, which is greater than zero.

Abstract: A display substrate includes: a base substrate, as well as a first metal layer, a first insulating layer, a second metal layer, a second insulating layer, and a common electrode metal layer laminated on one side of the base substrate. The common electrode metal layer includes metal line segments and connecting line segments. The metal line segments include first metal line segments and second metal line segments. The connecting line segments connect the adjacent first and second metal line segments. Each connecting line segment is provided with a maintenance line segment. Orthographic projections of the maintenance line segments on the base substrate do not overlap those of gate lines and data lines on the base substrate. The spacing between the orthographic projections of the maintenance line segments and those of the gate lines and data lines is greater than or equal to a preset distance, which is greater than zero.

Abstract: A balloon dilation catheter, a balloon (10) and preparation method therefor. The balloon (10) is prepared by co-mixing at least two of L25, TR55, TR90, and TR70, and has high puncture resistance and low compliance with respect to a balloon (10) made of a single nylon material. The balloon (10) is preferably a hollow multilayer structure, and the puncture resistance of the balloon (10) can be further improved and the compliance can be further reduced with respect to a single-layer structure.