Abstract: A gas extraction device for metal mineral inclusions and a gas extraction method therefor are provided, the device includes a base plate, an annular carrier, sealing covers, a grinding assembly, a vacuum assembly, a gas-gathering assembly and a mass spectrometer. The annular carrier is disposed on the base plate, multiple grinding chambers are defined and evenly distributed in a circular shape on the annular carrier, the sealing covers are disposed at openings of the grinding chambers, the grinding assembly includes grinding hammers, and the grinding hammers penetrate through the sealing covers and extend into the grinding chambers. Side walls of each grinding chamber defines a first through hole and a second through hole. The vacuum assembly is communicated with the grinding chambers through the first through holes. The gas-gathering assembly is communicated with the grinding chambers through the second through holes. The mass spectrometer is communicated with the gas-gathering assembly.

Abstract: The present application relates to a novel benzoazepine compound, comprising a pharmaceutically acceptable salt thereof. The present application also provides a pharmaceutical composition comprising the compound and a pharmaceutically acceptable salt thereof. The present application relates to use of the compound and the composition in the prevention or treatment of diseases related to arginine vasopressin V1a receptor, arginine vasopressin V1b receptor, arginine vasopressin V2 receptor, sympathetic nervous system or renin-angiotensin-aldosterone system. The present application also provides a method for preventing and/or treating arginine vasopressin-related diseases.

Abstract: An engineering facility scheduling method provided by the present application includes: obtaining facility information and working condition information of an engineering facility; obtaining, based on the facility information, a scheduling group where the engineering facility is located, and obtaining a scheduling policy corresponding to the scheduling group; generating, based on the scheduling policy and the working condition information of the engineering facility, a scheduling instruction for instructing the engineering facility to perform work; and sending the scheduling instruction to the engineering facility. According to the engineering facility scheduling method of the present application, the scheduling instruction can be generated according to the specific scheduling policy and working condition information, thereby increasing the degree of automation of engineering facility scheduling and improving engineering facility scheduling efficiency.

Abstract: A method for detecting a surface gradient of an unstructured road based on Lidar includes: obtaining an environmental point cloud of a target region by using a Lidar, and filtering out a point cloud of a non-surface region to obtain a point cloud of a surface region; calculating a normal vector of the point cloud of the surface region, and obtaining an included angle of the surface of each region relative to a coordinate system of the Lidar; and obtaining pitching angle information of a vehicle at this time from a vehicle-mounted inertial measurement unit (IMU), and correcting the included angle with the pitching angle information to obtain the gradient of the surface of each region.

Abstract: A bisphenol A derivative, a preparation method therefor and use thereof in photolithography are provided. The compounds feature simple molecular structure, controllable molecular weight, simple synthesis steps, and relatively high thermal stability. They do not precipitate during baking and are not easily denatured during photolithography. The negative molecular glass photoresists have good film-forming property, high thermal stability, less proneness to properties varying during storage, and low viscosity, no need for additional solvents for dilution during use. After exposure at UV wavelength of 365 nm, the exposed pattern shows high contrast, excellent resolution and good sensitivity, and can present the lithographic line width of 3.5 ?m.

Abstract: A smart luggage system includes a piece of luggage configured to store items for transport and a handle coupled to the luggage. The handle includes a pull rod coupled to a connecting rod. One or more cameras are disposed in a top portion of the pull rod and configured to take a photograph and/or video. One or more cameras are coupled to the luggage and/or the handle and configured to take a photograph and/or video.

Abstract: A smart luggage system includes a piece of luggage configured to store items for transport and a handle coupled to the luggage. The handle includes a pull rod coupled to a connecting rod. One or more cameras are disposed in a top portion of the pull rod and configured to take a photograph and/or video. One or more cameras are coupled to the luggage and/or the handle and configured to take a photograph and/or video.

Abstract: A smart luggage system includes a piece of luggage configured to store items for transport and a handle coupled to the luggage. The handle includes a pull rod coupled to a connecting rod. One or more cameras are disposed in a top portion of the pull rod and configured to take a photograph and/or video. One or more cameras are coupled to the luggage and/or the handle and configured to take a photograph and/or video.

Abstract: A smart luggage system includes a piece of luggage configured to store items for transport and a handle coupled to the luggage. The handle includes a pull rod coupled to a connecting rod. One or more cameras are disposed in a top portion of the pull rod and configured to take a photograph and/or video. One or more cameras are coupled to the luggage and/or the handle and configured to take a photograph and/or video.