Alibaba Group Holding Limited

City University of Hong Kong

Aerohive Networks, Inc.

Huawei Technologies Co., Limited

Zhejiang University

Extreme Networks, Inc.

Zhejiang Dahua Technology Co., Ltd.

Powerchina Huadong Engineering Corporation Limited

Zhejiang Cancer Hospital

Hangzhou Erran Technologies Co., Ltd.

Advanced New Technologies Co., Ltd.

Jie Zhang

Weimin Du

Long Fu

Dalun Bao

Jian Lu

Yan Huang

Yang Yang Li

Kai Cao

Le He

Yingjie Shi

Jing Hou

Xin Jin

Xue Bai

Wenhua Chen

Ruobin Xia

Yangchun Dai

Kewei Cui

Tingkai Li

Zhijian Shen

Wuyuan Zhao

Li Tao

Jing Hu

Jingzhi Sun

Guoping Shan

The present disclosure provides a new thiocarbonyl-based poly(O-thiocarbamate) compound with a structure represented by Formula I below, which has a sulfur element introduced, and has good solubility and high molecular weight.

Thiocarbonyl-based poly(O-thiocarbamate) compound and preparation method and use thereof

Provided is a system and method for estimating the motion of a target inside a tissue based on surface deformation of the soft tissue. The system consists of an acquisition unit, a reference input unit, two surface extraction units, a target position extraction unit, a feature calculation unit, and a target motion estimation unit. The method includes: the acquisition unit acquires an image Iof the soft tissue; the surface extraction unit extracts a surface fof the soft tissue from I; the reference input unit acquires a reference image Iof the soft tissue; the surface extraction unit and the target position extraction unit respectively extract a reference surface fof the soft tissue and a target reference position tfrom I, the feature calculation unit calculates deformation feature Ψof frelative to f, the target motion estimation unit estimates the target displacement based on Ψand t.

System and method for estimating motion of target inside tissue based on surface deformation of soft tissue

The present disclosure relates to an optical amplifier configured for an image capturing device. The optical amplifier may include a substrate. The optical amplifier may also include an optical amplification region formed over the substrate. The optical amplification region may include a first optical amplification layer and a second optical amplification layer. The first optical amplification layer may be configured to amplify light at a first wavelength range, and the second optical amplification layer may be configured to amplify light at a second wavelength range. The optical amplifier may further include at least one electrode layer electrically contacting the optical amplification region.

Optical amplifier and image capturing device

The invention discloses micron-nano pore gradient oxide ceramic films with biological activity, which are prepared by the following methods: The surface structures are biomedical engineering materials; Inorganic precursor coating solutions or the organic precursor coating solutions are prepared with or without micron and nanopore additives; The surface structures of the substrate are treated in the following steps: (1) The surfaces of the substrate are coated by the inorganic precursor coating solutions or the organic precursor coating solutions with or without micron and nanopore additives; (2) The substrate with coatings are dried, sintered, naturally cooled, and cleaned. (3) The biomedical engineering materials with the micron-nanopore gradient oxide ceramic films, especially biomimetic micro-nanoporous gradient alumina film, yttrium partially stabilized zirconia film, and alumina doped yttrium partially stabilized zirconia films in this invention greatly improve biocompatibility and biological activity.

Bioactive micro-nano pore gradient oxide ceramic film

Heterogeneous garbage types are collected by scanning all of the service items to identify all of the service types that are included within the service items, identifying garbage collection components that correspond with the service types, and then collecting garbage for the corresponding target service types by using the corresponding garbage collection components.

Garbage collection method and device

The disclosed embodiments provide a task scheduling method and apparatus. Network resources needed for a task to perform cross-cluster reading and writing are analyzed to obtain usage information of the occupied network resources for reading and writing; and the task is scheduled according to the usage information of the network resources needed for reading and writing. Because the usage information of the network resources occupied for reading and writing respectively represent network resources that can be saved by the cluster where access data is located when the task is scheduled for reading and writing, it can be determined that the cluster to which the task is scheduled can enable the task to occupy less network resources, thereby solving the problem of high bandwidth usage across clusters in current systems.

Method and apparatus for task scheduling

Techniques and systems for performing a network activity within a network. The technique includes assigning one or a plurality of network devices subnets with network devices for performing network activities. Network devices within the assigned network device subnets can be assigned to act as a primary network device and a backup network device. The primary network device can perform the network activity. The backup network devices can monitor the primary network device and continue performing the network activities if the primary network device fails or is rogue.

Assigning network device subnets to perform network activities using network device information

A method for three-dimensional (3D) modeling using two-dimensional (2D) image data includes obtaining a first image of an object oriented in a first direction and a second image of the object oriented in a second direction, determining a plurality of feature points of the object in the first image, and determining a plurality of matching feature points of the object in the second image that correspond to the plurality of feature points of the object in the first image. The method further includes calculating similarity values between the plurality of feature points and the corresponding plurality of matching feature points, calculating depth values of the plurality of feature points, calculating weighted depth values based on the similarity values and depth values, and performing 3D modeling of the object based on the weighted depth values.

Reducing computational complexity in three-dimensional modeling based on two-dimensional images

A positioning method is disclosed. The positioning method includes collecting at least two types of sensor data reflecting a motion state of a terminal device in a step-counting period in real time; separately filtering the at least two types of sensor data to obtain filtered sensor data; step-counting a user holding the terminal device based on the filtered sensor data to obtain a distance and a direction of movement of the user in the step-counting period; and correcting current position information of the user based on the distance and the direction of the movement of the user in the step-counting period to implement positioning of the user. The technical solution provided in the present disclosure can be adopted to improve the accuracy of indoor positioning.

Positioning method and apparatus

An example information encryption method that includes acquiring to-be-encrypted information and converting the to-be-encrypted information into a polynomial of a predetermined format; extracting biometric information, and acquiring biometric data; and substituting the biometric data into the polynomial for calculation to acquire a value of the polynomial and using a two-dimensional dataset including the biometric data and the value of the polynomial corresponding to the biometric data as first encrypted information. The techniques of the present disclosure improve the security of information encryption, and reduce the risk of illegal decryption of encrypted information.

Encrypting and decrypting information

A method for user identity authentication is provided. The method includes receiving an authentication image selected by a user, and acquiring, based on the authentication image, a password to be verified. The method may further include acquiring a preset verification password, and comparing the verification password with the password to be verified to obtain a user identity authentication result.

Method and apparatus for user identity authentication

The present invention relates to an apparatus for soil disturbance at the back of a shield tunnel, wherein: the apparatus is formed by a fitting I and a fitting II connected by means of three bolts that form equal angles; the fitting I is a short circular pipe; an end surface of a fitting end of the fitting I is provided with a water passage; a pipe wall of the pipe is provided with 2-8 water spouts; the fitting II is a long circular pipe whose inner and outer diameters are consistent with those of the fitting I; a fitting end of the fitting II is provided with two O-shaped water stop rings; a pipe wall of the fitting II is provided with three water inlets that form equal angles and are in communication with the water passage of the fitting I.

Device for back soil disturbance in shield tunnel

A nanoporous metal structure is made by etching a metal alloy structure of two or more metals. Less than all of the metals are selectively removed (e.g., dissolved in solution) from the alloy in the presence of an alternating voltage profile, for example, a periodic voltage profile. The resulting nanoporous metal structure, having pore openings of about 20 nm to about 500 nm in diameter and a purity of at least about 70%, can be further treated to alter some or all of the structure, and/or to add, remove and/or modify properties thereof.

Growing community of inventors

Hangzhou, China

Jie Zhang