Tsinghua University

Citrix Systems, Inc.

Nanjing University

Huawei Technologies Co., Limited

China Petroleum & Chemical Corporation

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

The 28th Research Institute of China Electronics Technology Group Corporation

Beijing Rossum Robot Technology Co., Ltd

Other

Hewlett Packard Enterprise Development LP

Chinese Academy of Sciences

Beijing Institute of Technology

Singapore Management University

Ke Xu

Hongqiang Ren

Zongpeng Qiao

Jinju Geng

Meng Shen

Wenlong Chen

Ze Chen

Bo Wu

Qi Li

Lili Ding

Xinkun Ren

Yuchao Zhang

Jianping Wu

Youjian Zhao

Zhipan Liu

Fan Yang

Yi Zhao

Yi Qu

Xiaoliang Wang

Tao Zhan

Dongchao Ma

Xin Peng Liu

Qi Cheng Li

Jun Feng Liu

Tong Li

Min Zhu

Feng Pan

Xiaolu Chu

Xiao Zhang

Hongfei Wu

Wei Tian

Jie Zhuang

Wenshuang Zhang

Jibo Huang

Yang Zhang

Xuan Liu

Xiaoqing Wang

Hui Ding

Ming Tong

Mingfang Zheng

Tonglin Li

Shutian Yao

Weiyu Jiang

Wenyi Tang

Feifei Chen

Yanru Wang

Gang Zhu

Zeyuan Liu

Zhanhui Shen

Chuan Niu

Qingqing Tan

Mingwei Zhang

Xiaozhu Shi

Kewen Mu

Qi Tan

Songshuang Hu

Hui Li

Bo Song Chen

Yu Wang

Lei Xu

Yan Mei Zhang

Kai Zheng

Yi He

Wei Li

Yongjing Zhang

Jue Wang

Hui Huang

Jun Liu

Yong Jiang

Lunjian Mu

Jianhua Tao

Lei Jin

Chunfeng Wang

Peng Yi

Zhichao Zhang

Han Wang

Mingxing Liu

Jiangxing Wu

Yonggang Bian

Fanzhao Wang

Haidong Hu

Zhijun Ren

Wei Tan

Yongwei Li

Jinren Zhang

Tao Zhang

Yingjiu Li

Jing Tian

Junying Gao

Liang Zhu

Lu Sun

Ziwei Li

Sijia Ma

Kedan Li

Huiyao An

Xingsheng Gao

Jing Zuo

Chunhui Wu

Ziqiang Wang

An elastic traction system, including a driving mechanism to provide traction power, a connecting rod connected to an output shaft of the driving mechanism and rotating along with the output shaft, a traction wheel arranged at an end of the connecting rod for rotating along with the connecting rod, a traction wire connected to the traction wheel, and an elastic traction bow connected to the traction wire. An elastic body is arranged at a front end of the traction wire to be connected to various traction tools, the other end of the traction wire is wound around the traction wheel, and the traction wheel is driven by the traction system to rotate, so as to complete a traction operation. The elastic traction bow implements elastic traction of a fracture reduction surgery, provides an elastic activity space for a surgical operation, and greatly facilitates carrying out various reduction operations during traction.

Elastic traction system

A first switch port receives a first control packet, a header having a source media access control (MAC) address of a first MAC of a first interface of a sending device and a payload containing a second MAC of a second interface of the same sending device. The first and second interfaces form a bonded interface for failover purposes on the sending device. A second switch port receives a second control packet, a header having the second MAC as its source MAC and a payload containing the first MAC. The switch associates the first and second MAC addresses as related MAC addresses associated with the bonded interface. The switch facilitates failover between the secure interfaces via multiple uplinks while maintaining the port security on the switch by allowing transmission of data from either the first or second MAC address, associated as related MAC addresses, without triggering a port security violation.

Method to support multiple uplinks failover between switch interfaces with port security

A method for detecting hidden malicious traffic based on a traffic interaction map and a device are provided. The method includes monitoring traffic passing through a gateway by a detection system operating in the gateway; obtaining a data packet granularity feature by performing feature extraction of granularity of a data packet on the traffic monitored; constructing a traffic interaction map according to the data packet granularity feature to represent a long-term interaction mode of the traffic by a graph structure of the traffic interaction map; and detecting an abnormal local structure on the traffic interaction map by a detection algorithm of graph learning based on the traffic interaction map, and marking the abnormal local structure as the corresponding hidden malicious traffic.

Method for detecting hidden malicious traffic based on traffic interaction map and device

The present disclosure discloses a hotpatch method for vulnerabilities in embedded Internet of Things (IoT) devices. The method includes acquiring vulnerability information of the embedded IoT devices to be patched; selecting a corresponding vulnerability patching mode based on different vulnerability types of the vulnerability information, and acquiring an eBPF patch bytecode file (first patch) and an eBPF patch code configuration file from a server according to the vulnerability patching mode; compiling the eBPF patch bytecode based on the eBPF patch bytecode and the eBPF patch code configuration file to generate a patch binary code file (second patch) and configuration information of the patch binary code; and adopting three approaches to trigger the patch binary code to patch the vulnerability information based on the configuration information and the vulnerability patching mode.

Hotpatch method for vulnerabilities in embedded IoT devices

A compact rotary algae biofilm reactor includes an algae biofilm module and a light guide module. The algae biofilm module includes a plurality of rotary members and a reaction tank. In the rotary member, an algae biofilm growth carrier and a power transmission belt are wound on a driving shaft and a driven shaft. A top end of the rotary member is fixed on a fixing frame while a bottom end thereof is submerged in the reaction tank. The light guide module includes a rotatable lens holder. The rotatable lens holder is fixedly provided with a linear Fresnel lens on an upper end thereof and is provided with a light guide plate on a lower end thereof. One side of the linear Fresnel lens is provided with a step motor configured to control the linear Fresnel lens to rotate with an angle of sunlight.

Compact rotary algae biofilm reactor

The present invention relates to a robotic arm, including: an upper arm and a front arm; a first joint structure, by which the upper arm and the front arm are articulated together; a second joint structure, arranged at an end of the upper arm and/or an end of the front arm; a first driving mechanism, arranged in the upper arm; and a second driving mechanism, arranged in the front arm, where the first joint structure includes a first force amplification apparatus and a first locking element, the second joint structure includes a second force amplification apparatus and a second locking element, and the first driving mechanism and the second driving mechanism apply an acting force to the first locking element and/or the second locking element by the first force amplification apparatus and/or the second force amplification apparatus. According to the robotic arm in the present invention, the force amplification apparatuses are arranged in the joint structures, which amplifies a locking force and enables the robotic arm to meet the requirements for large load applications under a miniature condition.

Robotic arm

One disclosed method involves a computing system determining a keyword of interest for an online meeting being presented via a user interface, determining that content of the online meeting corresponds to the keyword of interest, and causing, in response to the content of the online meeting corresponding to the keyword of interest, the user interface to output an indication that the content of the online meeting being presented is potentially of interest. Another disclosed method involves a computing system determining data indicative of a number of client devices, from a plurality of client devices participating in an online meeting, for which a user interface for the online meeting is presented in an active window, and causing, based at least in part on the data, a first client device, from the plurality of client devices, to output an indication that content of the online meeting being presented is potentially of interest.

Systems and methods for providing indications during online meetings

A method for hierarchical Internet trust sharing includes dividing a network into intra-domain and inter-domain layers based on a management domain; performing authentication on a central certificate through a CA and publishing the central certificate to a blockchain; managing by the central node, a certificate of each communication node based on a real address; collecting by the central node, temporary data reported by each communication node every preset time interval, generating a trust evaluation value of each communication node based on the temporary data and forming a format file from the trust evaluation values; generating by the central node, a file digest from the format file at each preset time interval, and publishing the file digest verified by central nodes in the inter-domain to the blockchain; and automatically deleting by the blockchain, data from the time interval 1 to the time interval (N-T-1) to retain blockchain header information.

Method for hierarchical internet trust sharing

A security guarantee method and apparatus for a full life cycle of a packet are disclosed. The method includes: in response to a data packet generated at a communication source, performing by a distributed network node, authenticity verification on a source address and an identity of the data packet; in a network forwarding process of the data packet, performing by the distributed network node, collaborative sampling on the data packet and performing credibility verification on related routing behaviors; in response to the data packet reaching a destination end, verifying by the destination end, the legality of the data packet.

Security guarantee method and apparatus for full life cycle of packet, and decentralized network trust system

A method and an apparatus for actively defending against backdoor attacks under an edge computing scenario. The method includes: generating an initial optional operation set based on optional operations configured to enhance a model generalization ability, and constructing a configuration parameter set for each operation in the set; selecting a first subset with a curve between configuration parameters and model accuracies of the operation presenting a monotonically decreasing concave function characteristic; selecting a second subset with a curve of the operation between configuration parameters and probabilities that a model is successfully attacked by the backdoor attack presenting a monotonically decreasing convex function characteristic; constructing a mutation characteristic set for each operation in an intersection of the first and second subsets; and for each operation in the intersection, determining a final parameter setting value of the operation based on the mutation characteristic set, to actively defend against possible backdoor attacks.

Method and apparatus for actively defending against backdoor attacks under edge computing scenario

A method for selecting a recommended node in a behavior deviation model includes: determining a candidate path starting from a delegation node to a target node based on a preset network topology; determining candidate recommended nodes passing through each candidate path, and acquiring a first behavior deviation corresponding to the target node at each candidate node; reading a second behavior deviation of each candidate recommended node from a central node in the network topology; calculating an average deviation value for the target node based on second behavior deviations and first behavior deviations; determining a candidate path with the smallest average deviation value as a target candidate path; and in response to the average deviation value of the target candidate path being less than or equal to a preset warning value, determining the candidate recommended node on the target candidate path as a recommended node.

Method and device for selecting recommended node in behavior deviation model

A verification method for fast source and path embedded with random authentication is provided. The method includes: generating a corresponding verification structure for an expected path according to a predetermined path strategy, embedding different m pieces of fragment information randomly selected with same possibility from the verification structure for the expected path to a header of a data packet to be transmitted in a data flow, and transmitting the data packet to be transmitted with the embedded fragment information to a next hop of routing node of the expected path, performing a verification on the received data packet by the respective intermediate routing node on the expected path, and forwarding the data packet to the next routing node when the verification passes, performing verification on the received data packet by the data flow destination, performing a parsing verification evaluation on the expected path when the verification passes.

Verification method for fast source and path embedded with random authentication

Methods and systems for providing secure file sharing are described herein. A computing device may receive data from a resource provider in response to a request received by the resource provider. The data may include information about a user of a client device that made the request for a file and information about the file, and the request may be for access to the file and made by the user with an owner of the requested file being unknown to the user. The computing device may parse the received data to identify a subset of data. The subset of data may be configured to enable the owner to determine whether to permit the user to access to the file. Further, the computing device may provide a notification, which includes at least some of the subset of data, to an endpoint device of the owner.

Enhanced security mechanism for file access

A dynamic path verification method based on reorganization of authentication fragments is proposed. The method includes: sending an initial expected path verification structure to a data packet sending end via a guarantee service node, and sending notification information to the respective routing nodes on an initial expected path; after updating the initial expected path to a new expected path, inserting the new expected path verification structure into a subsequent data packet to be sent, verifying the data packet by other nodes except a migration node, and sending the subsequent data packet to be sent to a next hop of routing node; performing the parsing verification on the received data packet by the migration node.

Dynamic path verification method based on reorganization of authentication fragments

According to some embodiments, a method can include: receiving, by a first computing device, information about a meeting that a user is scheduled to attend; retrieving, by the first computing device, a plurality of messages sent to the user in one or more applications; analyzing, by the first computing device, the plurality of messages to identify one or more messages relevant to the meeting based on contents of the messages and the information received about the meeting; and sending, by the first computing device, the relevant messages to a second computing device, the second computing device configured to display the relevant messages to the user.

Intelligent collection of meeting background information

Growing community of inventors

Nanjing, China

Ke Xu