Abstract: This application provides an incoming call volume control method and an electronic device. The method includes: An electronic device determines to start a detection based on a state of a display screen, a state of an optical proximity sensor, and an incoming call situation. During the detection, if target biological feature information is detected by the electronic device, the electronic device may adjust an incoming call volume. Therefore, a convenient and fast incoming call volume adjustment mode is provided, which enables a user to adjust the incoming call volume without operating the electronic device. Moreover, the electronic device starts the detection when a specific condition is satisfied, thereby effectively reducing power consumption while ensuring time relevancy and high efficiency of the detection.

Abstract: Disclosed are a phenyl amino sodium propionate derivative, a preparation method therefor and an application thereof. Specifically, disclosed are sodium 3-(4-(2-(9H-carbazole-9-yl)ethoxy)phenyl)-2-((2-(4-(4-(2-sodium forrnate-2-((2-(4-fluorobenzoyl)phenyl)amino)ethyl)phenoxy)benzoyl)phenyl)amino)propionate, a preparation method therefor and the use thereof for quality control of a bulk drug or formulation of Chiglitazar or a derivative thereof. Particularly, the compound can be used as a control substance or standard substance for the detection of impurities/related substances in Chiglitazar or a sodium salt drug thereof.

Abstract: Provided are an intelligent parking method and apparatus, relating to the technical field of vehicles. The method comprises: determining a target parking route from at least one pre-stored parking route; determining a target position point in the target parking route closest to a vehicle; sending a prompt message for driving the vehicle to the target position point to a driver of the vehicle when a current position point of the vehicle and the target position point satisfy a proximity matching condition; and when the vehicle drives to the target position point, controlling the vehicle to park according to the target parking route from the target position point. Thus, the driver merely needs to drive the vehicle to a vicinity of the target parking route, and the vehicle may perform intelligent parking and may complete intelligent parking at a longer distance.

Abstract: A radiation detector has an electron emitter that includes a coated nanostructure on a support. The nanostructure can include a plurality of nanoneedles. A nanoneedle is a shaft tapering from a base portion toward a tip portion. The tip portion has a diameter between about 1 nm to about 50 nm and the base portion has a diameter between about 20 nm to about 300 nm. Each shaft has a length between about 100 nm to about 3,000 nm and an aspect ratio larger than 10. A coating covers at least the tip portions of the shafts. The coating exhibits negative electron affinity and is capable of emitting secondary electrons upon being irradiated by radiation. The nanostructure can also include carbon nanotubes (CNTs) coated with a material selected from the group of aluminum nitride (AlN), gallium nitride (GaN), and zinc oxide (ZnO).

Abstract: A radiation detector has an electron emitter that includes a coated nanostructure on a support. The nanostructure can include a plurality of nanoneedles. A nanoneedle is a shaft tapering from a base portion toward a tip portion. The tip portion has a diameter between about 1 nm to about 50 nm and the base portion has a diameter between about 20 nm to about 300 nm. Each shaft has a length between about 100 nm to about 3,000 nm and an aspect ratio larger than 10. A coating covers at least the tip portions of the shafts. The coating exhibits negative electron affinity and is capable of emitting secondary electrons upon being irradiated by radiation. The nanostructure can also include carbon nanotubes (CNTs) coated with a material selected from the group of aluminum nitride (AlN), gallium nitride (GaN), and zinc oxide (ZnO).