Cisco Technology, Inc.

State Grid Corporation of China

Shanghai Institute of Pharmaceutical Industry

Tcl Intelligent Technology (hefei) Co. Ltd.

Xuancheng Power Supply Company of State Grid Anhui Electric Power Corporation

Beijing Hua Teng Kai Yuan Electric Company Limited

China National Medicines Guorui Pharmaceutical Co., Ltd.

Jian Wang

Yang Gao

Fuli Zhang

Bin Liang

Chunbo Yang

Chonghao Liu

Fei Zhao

Jianming Wu

Yeru Zhou

Hongbo Luo

Li Bin

Tianwen Zheng

Xi Yasi

Xiaoma Jin

Pan Rongrong

Chouguo Zhou

Min Jiang

Dongsheng Fu

Dongsheng Zou

Lei Xi

Jin Pan

Xiaowei Xie

Yi Song

Jianzhou Cheng

Presented herein are systems and methods that allow for capturing metadata associated with a drag-and-drop action. The metadata includes information about a participant of at least two participants connected, by a collaboration server, to a collaboration session via respective devices. The system and methods further introduce the concept of a meeting board. The collaboration server distributes to the respective devices media stream data representing a main display area and the meeting board section in a user interface screen associated with the collaboration session. Content items of the collaboration session are sequentially displayed in the main display area throughout the collaboration session and a portion of a content item that is drag-and-dropped from the main display area into the meeting board section remains on the meeting board section throughout the collaboration session.

Online conference tools for meeting-assisted content editing and posting content on a meeting board

Disclosed is a washing machine. The washing machine comprises an impeller, a decelerating clutch and an impeller connection assembly, wherein the decelerating clutch has a rotary shaft; and the impeller connection assembly is clamped and clamped and fixedly connected to the rotary shaft, so that the impeller is clamped and fixedly connected to the rotary shaft in a detachable way, thereby reducing the difficulties of the assembly and disassembly of the impeller, and prolonging the service life of the washing machine.

Washing machine

The present invention discloses a system and a method for controlling PCS voltage and frequency, wherein the system comprises a reference voltage converter, a phase-locked loop, a grid-side voltage converter, a voltage transformer, a first proportional integral controller, a second proportional integral controller, a coordinate converter and a SVPWM generator; a reference voltage converter is connected to an output terminal of a the phase-locked loop, and the output terminal of the phase-locked loop is further connected to a grid-side voltage converter; the grid-side voltage converter is connected to a high-voltage side of an isolating transformer of the electric grid via the voltage transformer; two output terminals of the grid-side voltage converter are respectively connected to the coordinate converter via two proportional integral controllers; an output terminal of the coordinate converter is connected to the SVPWM generator; an output terminal of the SVPWM generator is connected to a power switch of the electric grid. A PWM control signal for controlling the power switch of the electric grid is generated by the reference voltage converter, the phase-locked loop, the grid-side voltage converter, the voltage transformer, the two proportional integral controllers, the coordinate converter and the SVPWM generator. The system and method for controlling PCS voltage and frequency according to the invention have the advantages that the PCS can realize voltage and frequency buildup in an off-grid state and can stably output an expected voltage and frequency.

System and method for controlling PCS voltage and frequency

A method for preparing a Rivaroxaban intermediate I is presented, including the following step: in a non-protonic solvent, under the effect of lewis acid, performing cyclization reaction on 4-(4-phenyl isocyanate)morpholine-3-ketone (II) and (S)-epoxy compound (III), the reaction temperature ranging from 20&#xb0; C. to 60&#xb0; C., where R is amino replaced by amino protecting group. The preparation method of the present invention has a mild condition, a simple process, a low cost, and high efficiency; the product is easy to purify and the method is applicable to industrial production.

Method for preparing rivaroxaban intermediate

Growing community of inventors

Anhui, China

Jian Wang