China Petroleum & Chemical Corporation

Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation

Beijing Bytedance Network Technology Co., Ltd.

Datang Mobile Communications Equipment Co., Ltd.

Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd.

Qian Xue

Zhixiang Zhang

Jinbing Li

Jianshe Chen

Wei Lin

Jun Jiang

Shuyuan Cao

Hui Wang

Chen Zhang

Ke Zhong

Qiang Lin

Wei Zhao

Kun Chang

Wei Wang

Shujuan Wang

Xianfeng Li

Lixin Gao

Zhiqiang Tang

Shuyun Li

Yingyue Zhou

Yineng Lu

Xinxin Sun

Rujun Liang

Mingrui Liu

Zunzhao Li

Xiaozhe Sun

Xiaolin Wang

Shihan Li

Embodiments of the present disclosure provide a live streaming and device, where the method includes: receiving push information of a target creation sent by a server, where the push information is sent by the server based on that the server determines that play popularity of the target creation meets preset popularity; and in response to an operation of a user on the push information, entering a first page of a live streaming application (App). In the embodiment of the present disclosure, by pushing the target creation whose play popularity exceeds preset popularity to the user, to prompt the user that one target creation is becoming a hot creation, so as to guide the user to go live with the target creation as a topic.

Live streaming method and device

The present disclosure discloses an &#x3b1;-alumina carrier, comprising the elements of lanthanum and silicon both dispersed in the interior and on the surface of the carrier. The mass ratio of the element of lanthanum to the element of silicon is in the range from 0.1:1 to 20:1. The inventors of the present disclosure have made extensive researches into the field of the silver catalyst and alumina carrier thereof, and added the elements of lanthanum and silicon (i.e., bulk phase addition) in preparing the alumina carrier used in the silver catalyst. The carrier thus obtained contains the elements of silicon and lanthanum both in the interior and on the surface thereof, and has improved specific surface area and strength. The silver catalyst prepared with the carrier can react in a low reaction temperature (has a high reaction activity) and has a high selectivity in producing ethylene oxide through oxidation of ethylene.

Alumina carrier, method of preparing the same, and silver catalyst

Disclosed are a method and an apparatus for controlling a PPC rule in a Preload mode. The method comprises: in a Preload mode, a Policy and Charging Rule Function (PCRF) entity recording system time each time a PCC rule is delivered, and obtaining a Preload mode update time interval; at an interval of one clock period, the PCRF entity checking whether a service currently in a stable session state has a preset execution data, and if the service does not have a preset execution date, detecting an interval between the current time and a time when the previous PPC rule corresponding the service is delivered; when the interval between the current time and the time when the previous PPC rule corresponding to the service is delivered is one Preload mode update time interval, the PCRF entity updating an effective time and an expiration time of the PCC rule corresponding to the service that has been detected to have no preset execution date, so as to solve the problem that the PCC rule cannot be used repeatedly in the prior art.

Method and apparatus for controlling PPC rule in preload mode

The present invention relates to an alumina support for silver catalyst, a process for preparing said alumina support, a silver catalyst made from said alumina support, and a use of said silver catalyst in the production of ethylene oxide by the oxidization of ethylene. According to the present invention, the silver catalyst made from the support prepared by potassium melt technology can have a high selectivity.

Alumina support for silver catalyst, preparation and use thereof

The present invention relates to a support for silver catalyst used in the ethylene oxide production, a preparation method for the same, a silver catalyst prepared from the same, and its use in the ethylene oxide production. The silver catalyst produced from the silver catalyst support has an improved activity, stability and/or selectivity in the production of ethylene oxide by epoxidation of ethylene.

Support for silver catalyst in ethylene oxide production, methods for preparing the same, silver catalyst prepared therefrom, and use thereof

Growing community of inventors

Beijing, China

Qian Xue