Anker Innovations Technology Co. Ltd.

Huawei Technologies Co., Limited

Honor Device Co., Ltd.

Central South University

Hui Zhong

Yu Zhu

Huangwei Wu

Lei Li

Zhiming Ding

Shuo Yang

Shu Wang

Yuan Liu

Guiming Shu

Zhiyong Zhang

Zhiguo He

Weiqi Xie

Yi Ting Zhou

Yingpeng Li

Pengcheng Zhang

Joshua James Fischer

Yi Su

Jiahao Wang

Peiying Dong

Junling Hu

Mobile power bank

Charging base

Charging bracket

Embodiments of this application provide a refresh rate switching method, an electronic device, and a system. After being in a communication connection to a stylus, the electronic device may display a picture at a first refresh rate. The user may operate the electronic device, so that a refresh rate of the electronic device is switched from the first refresh rate to a second refresh rate. When the user holds the stylus again to approach a screen, the electronic device switches from the second refresh rate to a third refresh rate, where the first frequency is an integer multiple of the third refresh rate; and then after the electronic device sends a wake-up signal to the stylus, the stylus may intercept the wake-up signal, to send an uplink signal, and then the electronic device may receive the uplink signal from the stylus, and may keep signal synchronization with the stylus.

Refresh rate switching method, electronic device, and system

The present disclosure provides example line order detection methods and multi-antenna network devices. One example method includes obtaining preset antenna numbers of a target antenna group. A first uplink received signal strength sequence of each antenna channel is determined based on a first uplink reference signal sequence from a terminal. After an antenna downtilt angle of the target antenna group is adjusted from a first downtilt angle to a second downtilt angle, a second uplink received signal strength sequence of each antenna channel is determined based on a second uplink reference signal sequence from the terminal. Actual antenna numbers of the target antenna group are determined based on the first uplink received signal strength sequence and the second uplink received signal strength sequence of each antenna channel. When the preset antenna numbers are different than the actual antenna numbers, a line order is determined to be incorrect.

Line order detection method and multi-antenna network device

Charger

The present disclosure provides a preparation method of a fly ash-based ceramic membrane support, including the following steps: 1) subjecting fly ash to alkali washing and acid washing to obtain pretreated fly ash; 2) blending a raw material including the pretreated fly ash, and then conducting aging and extrusion molding to obtain a green body; and 3) spraying a surface water-retaining agent (including glycerol, tung oil, a diol, and polyethylene glycol) on a surface of the green body to allow static curing in a constant-temperature and constant-humidity environment, and then conducting drying and sintering after the curing is completed. The preparation method can effectively improve molding and sintering performances of the fly ash to obtain a fly ash-based ceramic membrane support with a qualified performance.

Preparation method of fly ash-based ceramic membrane support

The present disclosure provides a phase inversion pore-forming agent and a pore-forming method for a fly ash-based ceramic flat membrane support. The phase inversion pore-forming agent includes poly(oxyphenylene sulfone) and N-methylpyrrolidone (NMP), and is used in a preparation process of the fly ash-based ceramic flat membrane support. Pores can be formed through phase inversion, forming straight-through pores with gradient distribution inside the ceramic flat membrane support, thus avoiding a low porosity, a poor water flux, and uneven pore formation of the existing fly ash-based ceramic flat membrane support.

Phase inversion pore-forming agent and pore-forming method for fly ash-based ceramic flat membrane support

Growing community of inventors

Shenzhen, China

Hui Zhong