Abstract: Disclosed are a doped colloidal metal oxide quantum wire and a preparation method thereof, a gas sensor, a gas sensor array, and use thereof, which relate to the technical field of gas sensors. In the preparation method, a main metal precursor, a doped metal precursor, an alcohol solvent, and a fatty acid surfactant are mixed, and a resulting mixture is subjected to a solvothermal reaction, to obtain the doped colloidal metal oxide quantum wire, wherein a main metal element in the main metal precursor is selected from Sn, Zn, W, In, Mo, Fe, Co, Ni, and Cu; a doped metal element in the doped metal precursor is selected from V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni and Cu; the doped metal element is different from the main metal element; and the solvothermal reaction is performed at a temperature of 150-300° C.

Abstract: Provided are a hydrogen-sensitive material resistant to humidity interference, a semiconductor resistive hydrogen sensor, and an intelligent hydrogen sensing system, and a preparation method and use thereof, which relate to the technical field of gas sensors. The hydrogen-sensitive material resistant to humidity interference includes a three-dimensional (3D) porous non-conductive metal oxide substrate, a nano-scale WO3-x film deposited on an outer surface and an inner pore surface of the 3D porous non-conductive metal oxide substrate, and Pd nanoclusters diffusely distributed on a surface of the nano-scale WO3-x film, wherein the nano-scale WO3-x film is formed from oxygen vacancy-containing tungsten oxide.

Abstract: A motorized crushing apparatus includes a zero voltage detector, a manual switch, a motor driver, a motor and a controller. The zero voltage detector is coupled to an AC power source. When a varying voltage of the AC power source is below zero, the zero voltage detector generates a first signal. When the varying voltage of the AC power source is above zero, the zero voltage detector generates a non-zero signal. The manual switch is provided for a user to select a crushing pattern from multiple candidate crushing patterns. The controller is coupled to the zero voltage detector, the manual switch and the motor driver. The controller generates a control signal corresponding to the selected crushing pattern to alternatively turn on and turn off the motor driver under a schedule pattern.

Abstract: Provided are a hydrogen-sensitive material resistant to humidity interference, a semiconductor resistive hydrogen sensor, and an intelligent hydrogen sensing system, and a preparation method and use thereof, which relate to the technical field of gas sensors. The hydrogen-sensitive material resistant to humidity interference includes a three-dimensional (3D) porous non-conductive metal oxide substrate, a nano-scale WO3-x film deposited on an outer surface and an inner pore surface of the 3D porous non-conductive metal oxide substrate, and Pd nanoclusters diffusely distributed on a surface of the nano-scale WO3-x film, wherein the nano-scale WO3-x film is formed from oxygen vacancy-containing tungsten oxide.

Abstract: A die substrate, including a dielectric body, the body having a first body surface, a second body surface on an opposite side and body edge surfaces located in between. Current-carrying metal lines located in the dielectric body. One or more of the metal lines routed to one or more of the body edge surfaces. A termination layer located on the at least one body edge surface and electrically connected to the least one of the metal lines routed to the body edge surfaces. Electrically conductive plating located on the at least one body edge surface. The plating connected to the termination layer for an electrical current connection or a ground connection to the at least one metal line. A method of manufacturing an integrated circuit package, the package and a computer having the die substrate are also disclosed.

Abstract: Disclosed are a pressure control method and a pressure control device for a braking cylinder of a rail vehicle, and the rail vehicle. The method includes the following steps: acquiring the air charge-release volume of the braking cylinder of the rail vehicle and the air flowrate of the braking cylinder; determining the charge-release duration according to the air charge-release volume of the braking cylinder and the air flowrate of the braking cylinder, and controlling the charge-release working duration of the air charge-release solenoid valve according to the air charge-release duration; when the working duration of the air charge-release solenoid valve reaches the charge-release duration, acquiring the predictive pressure of the braking cylinder, and controlling the working state of the air charge-release solenoid valve according to the predictive pressure.

Abstract: A compressor and a heat exchange system are provided. The compressor has a sealed container and a liquid storage tank. An outlet end of the liquid storage tank is connected to an inlet end of the sealed container. An outlet end of the sealed container and an inlet end of the liquid storage tank are connected to an external heat exchange loop. A motor and a compression mechanism of the compressor are mounted in the sealed container. A first valve of the compressor is mounted at the outlet end of the sealed container and allows unidirectional communication from the sealed container to the external heat exchange loop. A second valve of the compressor is mounted at the inlet end of the liquid storage tank and allows unidirectional communication from the external heat exchange loop to the liquid storage tank.

Abstract: An objective of the present application provides a method and apparatus for operating a target application on a corresponding device. Specifically, the first user equipment receives a desktop screenshot sent by the second user equipment, displays the desktop screenshot; in response to a corresponding user's select operation on the application identification information in the desktop screenshot, converts coordinates of the application identification information on the first user equipment's screen to coordinates of the application identification information on the second user equipment's screen; sends coordinates of the application identification information on the second user equipment's screen to the second user equipment; receives an application screenshot of the started target application sent from the second user equipment; and displays the application screenshot.

Abstract: The present invention provides a method and apparatus for providing information and a method and apparatus for providing a search result. The method for providing information comprises: acquiring a current hotspot event, and determining a first keyword corresponding to the current hotspot event; determining a second keyword matched with the first keyword in a pre-built first database, and determining an information provider suitable for hotspot correlation according to the second keyword, the first database comprising the information provider and the second keyword corresponding to the information provider; and generating hotspot information materials of the information provider suitable for hotspot correlation according to the first keyword, and making the hotspot information materials online so as to be provided for a user.

Abstract: The present invention provides a method and apparatus for invoking a service in a mobile terminal, wherein the method comprises steps of: determining, for an application being running, one or more service requested by the application by querying a service information library; invoking the one or more service in order to be provided to the application. Compared with the prior art, the present invention enhances user experience and improves application development efficiency through cooperation between applications.

Abstract: The present invention provides a method and apparatus for providing information and a method and apparatus for providing a search result. The method for providing information comprises: acquiring a current hotspot event, and determining a first keyword corresponding to the current hotspot event; determining a second keyword matched with the first keyword in a pre-built first database, and determining an information provider suitable for hotspot correlation according to the second keyword, the first database comprising the information provider and the second keyword corresponding to the information provider; and generating hotspot information materials of the information provider suitable for hotspot correlation according to the first keyword, and making the hotspot information materials online so as to be provided for a user.