Abstract: Embodiments of the present disclosure relates to an electronic device, a vision-based operation method and system for a robot. The electronic device includes at least one processing unit; and a memory coupled to the at least one processing unit and storing computer program instructions therein, the instructions, when executed by the at least one processing unit, causing the electronic device to perform acts including: obtaining an image containing a tool of a robot and an object to be operated by the tool, the image being captured by a camera with a parameter, obtaining a command for operating the tool, the command generated based on the image; and controlling the robot based on the command and the parameter. Embodiments of the present disclosure can greatly improve the accuracy, efficiency and safety of an operation of a robot.

Abstract: Provided are a crystal form of a multi-substituted benzene ring compound maleate, and a preparation method therefor and the use thereof. The crystal form of the multi-substituted benzene ring compound salt represented by formula II has good physicochemical stability, high solubility, less hygroscopicity, good flowability and more preparation process options, and is more suitable for industrial production, which is of great value for drug optimization and development.

Abstract: Provided is a monocyclic ?-lactam compound as shown in general formula (I), or an ester, a stereoisomer or a pharmaceutically acceptable salt thereof. Also provided are a pharmaceutical composition containing the monocyclic ?-lactam compound as shown in general formula (I), or an ester, a stereoisomer or a pharmaceutically acceptable salt thereof, and the use thereof in the preparation of a drug for treating bacterial infections.

Abstract: Disclosed is a double-sided color photographic paper, including, in order, a first protection layer, a first photosensitive layer, a supporting substrate, a second photosensitive layer and a second protection layer. The supporting substrate has a first surface and a second surface opposite to the first surface. A first barrier layer and at least one layer of a first shading layer are sandwiched between the first photosensitive layer and the first surface of the supporting substrate. The first barrier layer is arranged between the first photosensitive layer and the first shading layer; a second barrier layer and at least one layer of a second shading layer are sandwiched between the second surface of the supporting substrate and the second photosensitive layer, and the second barrier layer is arranged between the second shading layer and the second photosensitive layer.

Abstract: Disclosed is a double-sided color photographic paper, including, in order, a first protection layer, a first photosensitive layer, a supporting substrate, a second photosensitive layer and a second protection layer. The supporting substrate has a first surface and a second surface opposite to the first surface. A first barrier layer and at least one layer of a first shading layer are sandwiched between the first photosensitive layer and the first surface of the supporting substrate. The first barrier layer is arranged between the first photosensitive layer and the first shading layer; a second barrier layer and at least one layer of a second shading layer are sandwiched between the second surface of the supporting substrate and the second photosensitive layer, and the second barrier layer is arranged between the second shading layer and the second photosensitive layer.