Other

Dalian University of Technology

Datang Mobile Communications Equipment Co., Ltd.

Beijing Naura Microelectronics Equipment Co., Ltd.

Kyland Technology Co., Ltd.

Chinese Academy of Sciences

Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Pr China

Jing Shi

Wei Shan Dong

Yang Zhao

Sheng Zhu

Xiaoming Wang

Qing Chang

Wenyu Wang

Guofeng Han

Tao Teng

Yao Meng

Zhaofeng Bai

Yanyang Wang

Yang Han

Guobin Li

Fumin Xu

Zhiyong Qin

Zhiqiang Ren

Lei Wang

Yu Sun

Yi Huang

Chun Long Wang

Xin Wu

Bo Zheng

Zhenguo Ma

Xiaojuan Wang

Zhihui Shao

Hui Zhong

Jing Wang

Hui Wang

Tao Li

Bo Xu

Peijun Ding

Qin Hua Wang

Qinghua Li

Jiaming Xu

Dongyang Wang

Lihua Ni

Wei Tu

Xiaojun Hou

Yuenan Liu

Kun Cai

Zhanwu Peng

Wei Dong

Embodiments of the present disclosure provide a reaction gas supply system and a control method. The reaction gas supply system includes a plurality of precursor containers and a plurality of supply regulator devices. The precursor container is connected to at least one of the reaction chambers. The plurality of precursor containers include at least a pair of precursor containers of an arbitrary combination. A supply regulator device is arranged between each pair of precursor containers. The supply regulator device is configured to connect the corresponding pair of precursor containers. With the reaction gas supply system and the control method of the present disclosure, the reaction gas may be ensured to be supplied stably, the utilization rate of the precursor may be increased, and the production efficiency and the product quality may be increased.

Reaction gas supply system and control method thereof

A method and device for increasing an accuracy of a phase measurement, wherein the method includes: receiving a measurement signal; performing a frequency-domain transformation to the measurement signal to obtain a frequency-domain measurement sequence; determining phases that correspond to frequency-domain measurement signals, and determining a phase difference between the frequency-domain measurement signals that correspond to two neighboring specified frequency points; according to the phases, the phase difference and a window function, performing a sliding-window-type phase fitting to the frequency-domain measurement sequence, to obtain phase-fitting data that correspond to sliding windows; and according to the phase-fitting data of the sliding windows, determining phase-calibration data that correspond to the sliding windows, and, by using the phase-calibration data of the sliding windows, forming phase-calibration data within a specified frequency band. The method reduces an error of fitting, and increases an accuracy of a phase calibration.

Method and device for improving phase measurement accuracy

An apparatus for efficiently preparing spherical metal powder for 3D printing includes a housing, a crucible and a powder collection area arranged in the housing, wherein a turnplate arranged in the collection area is an inlaid structure. A material having a poor thermal conductivity is selected as the base of the turnplate, and a metal material having a wetting angle less than 90&#xb0; with respect to droplets is selected and embedded into the base to serve as an atomization plane of the turnplate. An air hole is disposed in the turnplate. The spherical metal powder for 3D printing combines electromagnetic force breaking capillary jet flow and centrifugal atomization, which breaks through the traditional metal split mode, and makes the molten metal in a fibrous splitting.

Device and method for high-efficiency preparation of spherical metal powder for 3D printing employing separation into fibers

A phase calibration method includes: segmenting a received measurement sequence according to a preset rule; respectively determining a phase calibration factor of each of segmented measurement sequences, wherein the each of the segmented measurement sequences respectively corresponds to a segmented phase; and when performing a phase calibration on a sequence to be verified, according to a matching relation between a phase of the sequence to be verified and the each of the segmented phases, using the phase calibration factor corresponding to a matched segmented phase to perform the phase calibration on the sequence to be verified. The embodiments of the phase calibration method and the device are equivalent to dividing a non-linear measurement sequence into several approximately linear measurement sequences, and then calibrating each of the several approximately linear measurement sequences using a corresponding phase calibration factor respectively.

Phase calibration method and device

An apparatus includes a housing, a crucible disposed in the housing, and a collection bin. A turnplate disposed in a powder collection area is of an inlaid structure. A concentric circular groove is provided on the atomization plane. An air hole is provided in the turnplate. The present invention combines the pulsated orifice ejection method and the centrifugal atomization method, in cooperation with the turnplate structure and subjecting the turnplate surface to induction heating, so that a metal liquid is allowed to break through the split mode of traditional molten metal, achieves a fibrous split mode that can be implemented only when an atomizing medium is an aqueous or organic solution, and prepares a high-melting-point metal powder that meets requirements, and has a controllable particle size, high sphericity, no satellite droplets, and good flowability and spreadability, and is suitable for industrial production.

Apparatus and method for preparing spherical metal powder based on one-by-one atomization method for uniform droplets

An apparatus efficiently preparing ultrafine spherical metal powder includes a housing, a crucible and a powder collection area arranged in the housing. The turnplate arranged in the powder collection area is an inlaid structure. The part inlaid into the body part acts as an atomization plane of the turnplate. The atomization plane is provided with a concentric circular groove, and the turnplate is provided with an air hole. The apparatus is used for preparing ultrafine spherical metal powder by on-by-one droplets centrifugal atomization method, mainly combining the uniform droplet jet method and the centrifugal atomization method, which breaks through the traditional metal splitting model, makes the molten metal in a fibrous splitting, so as to efficiently prepare ultrafine spherical metal powder with narrow particle size distribution interval, high sphericity, good flowability, excellent spreadability, uniform and controllable size, no satellite droplets and suitable for industrial production.

Apparatus and method for efficiently preparing ultrafine spherical metal powder by one-by-one droplets centrifugal atomization method

A semiconductor manufacturing process is provided. A trench is formed in a semiconductor structure and an oxide layer is deposited on sidewalls of the trench. A solid-state by-product layer is formed on surfaces of the trench by introducing a first etchant gas to react with a naturally occurred oxide layer at the bottom of the trench and the deposited oxide layer. The solid-state by-product layer has a thickness on the bottom less than a thickness on the sidewalls. A second etchant gas is introduced into the trench to react with the solid-state by-product layer, thereby providing a thinned solid-state by-product layer on the sidewalls to protect the deposited oxide layer. By a heating process, the thinned solid-state by-product layer is removed from the sidewalls of the trench, exposing the deposited oxide layer and a surface portion of the semiconductor structure in the trench.

Semiconductor manufacturing process

An auditory selection method based on a memory and attention model, including: step Sencoding an original speech signal into a time-frequency matrix; step Sencoding and transforming the time-frequency matrix to convert the matrix into a speech vector; step Susing a long-term memory unit to store a speaker and a speech vector corresponding to the speaker; step Sobtaining a speech vector corresponding to a target speaker, and separating a target speech from the original speech signal through an attention selection model. A storage device includes a plurality of programs stored in the storage device. The plurality of programs are configured to be loaded by a processor and execute the auditory selection method based on the memory and attention model. A processing unit includes the processor and the storage device.

Auditory selection method and device based on memory and attention model

The disclosure relates to a method and apparatus for real-time transmission in a field broadband bus architecture over an industrial internet, where the field broadband bus architecture over an industrial internet includes: a bus controller, at least one bus terminal, and a two-wire bus over which the bus controller and the bus terminal are connected to constitute a network, the bus controller communicates with any one bus terminal, and the respective bus terminals communicate with each other, using the Orthogonal Frequency Division Multiplexing technology, and sub-carriers occupied by the respective bus terminals do not interfere with each other; and the method includes: the bus controller receives a fixed-rate service transmitted by the bus terminal in an uplink subframe over pre-allocated fixed-rate service resource blocks; and allocates resource blocks for a variable-rate service of the bus terminal in a real-time manner among variable-rate service resource blocks.

Method and apparatus for real-time transmission in a field broadband bus architecture over an industrial internet

Embodiments of the disclosure disclose a synchronization method and apparatus on the basis of a field broadband bus architecture of an industrial Internet, where the bus architecture includes a bus controller, at least one bus terminal, and a two-wire bus, and the bus controller and the bus terminal are connected over the two-wire bus to constitute a bus system, the bus system communicating using OFDM technology; and in the method, all the bus terminals refer to the bus controller, and when receiving a signal, and transmitting a signal, they adjust a clock for a received signal, and a signal to be transmitted, adaptively according to the downlink pilot signal so as to synchronize their clocks and symbols with the bus controller, and adjust a transmission time for the signal to be transmitted so that all the devices in the bus system are synchronized.

Synchronization method and apparatus on the basis of a field broadband bus architecture of industrial internet

The present invention provides a polypeptide TF1 for inhibiting type-2 Shiga-toxin activity, an encoding gene for the same and use thereof. The present polypeptide is named TF1 (also known as P1); its amino acid sequence is shown in SEQ ID NO: 1 in the sequence list. The polypeptide P1 can be prepared into medicine for preventing and/or treating diseases caused by type-2 Shiga toxin or the pathogens which produce type-2 Shiga toxin.

Polypeptide TF1 for inhibiting type 2 Shiga toxin activity, encoding gene for same and use thereof

Growing community of inventors

Beijing, China

Jing Shi