Abstract: Provided are a vibration object monitoring method and apparatus, a computer device, and a storage medium. The method includes: in response to detecting that a vibration object exists in a monitoring video picture for a target monitoring region, a vibration object region in the monitoring video picture is determined, where the vibration object region is a region where the vibration object is located in the monitoring video picture; displacement information of a key point of the vibration object in the vibration object region is recorded; vibration information of the vibration object in the monitoring video picture is determined based on the displacement information; and a vibration object monitoring result for the target monitoring region is generated according to the vibration information. The abnormal vibration monitoring can be performed on the vibration object in the target monitoring region in time according to this method.

Abstract: Disclosed are a polyethylene glycol conjugate drug, and a preparation method therefor and the use thereof. Specifically, the present invention relates to a polyethylene glycol conjugate drug represented by formula A or a pharmaceutically acceptable salt thereof, a method for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, an intermediate for preparing the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof, and the use of the polyethylene glycol conjugate drug or the pharmaceutically acceptable salt thereof in the preparation of a drug.

Abstract: The disclosure discloses a system and method for predicting a vibration of a bicycle when being rode on a road. The method first uses a pressure film to obtain a contact interface between a road and a bicycle tire, and then, based on the contact interface, a unit bearing area (Bu) and an average stress peak distance (Spa) are calculated. Next, taking the above parameters as variables, a predicted vibration value (Pv) is calculated based on calculation formulas provided by the present disclosure. Finally, the predicted vibration value Pv is compared with a comfort-level threshold perceived by a cyclist of the present disclosure, which can quickly and effectively grade and predict a comfort level when riding a bicycle on a section of an asphalt road.

Abstract: An exercise bicycle is provided with a planar four bar linkage with cranks. The bicycle frame (5) is used as the machine frame of the planar four bar linkage, the seat (2) of the bicycle is fixed on a connecting rod (8) of the planar four bar linkage, and the connecting rod (8) is not directly connected with the bicycle frame (5). A middle axle (10) is used as the crank shaft, and one end of the connecting rod (8) is rotationally connected with a crank pin journal of the crank shaft (10), the other end thereof is connected with the member of the bicycle frame (5). The seat of the bicycle can do periodic movement with translation and rotation while a person rides the bicycle.

Abstract: An exercise bicycle is provided with a planar four bar linkage with cranks. The bicycle frame (5) is used as the machine frame of the planar four bar linkage, the seat (2) of the bicycle is fixed on a connecting rod (8) of the planar four bar linkage, and the connecting rod (8) is not directly connected with the bicycle frame (5). A middle axle (10) is used as the crank shaft, and one end of the connecting rod (8) is rotationally connected with a crank pin journal of the crank shaft (10), the other end thereof is connected with the member of the bicycle frame (5). The seat of the bicycle can do periodic movement with translation and rotation while a person rides the bicycle.