Hangzhou Qulian Technology Co., Ltd.

Zhejiang University

Otis Elevator Company

Zhejiang Dahua Technology Co., Ltd.

Ningbo Semiconductor International Corporation

Alibaba Group Holding Limited

Acea Biosciences, Inc.

Powerchina Huadong Engineering Corporation Limited

Tsinghua University

Roche Diagnostics Operations, Inc.

China Petroleum Chemical Corporation

Silergy Semiconductor Technology (Hangzhou) Ltd

Arcsoft Corporation Limited

Westlake University

Hangzhou Hyperchain Technology Co., Ltd.

Wei Li

Weiwei Qiu

Fanglei Huang

Sisi Zheng

Shuai Zhang

Hailong Luo

Fei Qi

Shusheng Xiong

Keting Yin

Liang Cai

Qilei Li

Xiaobo Wang

Herb He Huang

Nan Li

Manfred Watzele

Tianxing Wang

Huimin Wu

Yong Zhou

Alexander Seiler

Kejie Zhang

Shengxiao Zhao

Lizhong Kuang

Qiujie Song

Donald Thomas

Jialei Rong

Zhiqiang Wu

Ying Chen

Yi Li

Yama A Abassi

Xiaojie Sheng

Wei Fang

Ji Wang

Yu Lei

Peng Li

Jingdai Wang

Qiang Zuo

Yanming Cai

Wenqing Wu

Ning Ke

Yongrong Yang

Binbo Jiang

Wuping Du

Xiangyuan Zheng

Daoyi Chen

Yuxing Wu

Xinzheng Li

Kun Zhang

Zhengliang Huang

Xingjian Sun

Jian Ruan

Bin Meng

Maifang Hu

Junjun Yu

Renpu Jiang

Guodong Chen

Caiyun Huan

Sihua Wen

Xiaomin Ma

Haibin Huang

Kunpeng Liu

Lei Hu

Gen Xiong

You Weng

Jun Ye

Zhaohan Hu

Defeng Xuan

Yonggen Zhang

Yinjia Zhu

Dingwen Zhang

Xuefeng Lv

Hao Duan

Liang Sun

Pingyang Zi

Hongren Li

Xiaoke Wang

Qi He

Xu Zheng

Yeqi Tao

Yanhui Xia

Bing Luo

Weicheng Cui

Zhenhua Wang

Jiang Xu

Aiming Pan

Adrian Papas

Peiyang Qiao

Lijun Du

Lina Fan

Yongming Zheng

Yingchun Zhuang

Na Lv

Liping Zhang

Fabo Chen

Tian-Jin Chen

Fang Ji

Sheng Lu

Yaojun Wang

Xiaoxuan Zhang

Zhankuan Wu

Shiyan Ye

The present application provides a pipeline-friendly signature and verification method, a device and a storage medium. The method includes the following steps: generating, by the Witness node, a public-private key pair including a private key and a public key, through a basic signature algorithm, and sending the public key to other Witness nodes; selecting, by the Witness node, a random number, and sending V to a Leader node; receiving C sent by the Leader node; calculating a message digest through the basic signature algorithm and a message hash algorithm, according to the C and the public key, and then calculating ps, and sending the ps to the Leader node.

Pipeline-friendly signature and verification method, device, and storage medium

A method of synchronous monitoring for a battery management system, where the battery management system includes a battery pack having a plurality of batteries coupled in series, can include: obtaining two measurement results representing a state parameter of a battery at a same time; and determining a final result, where a first of the two measurement results is a main measurement result and a second of the two measurement results is an auxiliary measurement result, and the main measurement result is configured as the final result.

Synchronous monitoring circuit and synchronous monitoring method for battery management system

A method, an apparatus and a device for parallel execution of a smart contract, and a medium are provided. The method for parallel execution of the smart contract includes the following steps: determining, according to a chain table for a cross-contract calling of each transaction in target execution transactions and the contract type of a smart contract in the target execution transactions, a calling dependency relationship between the transactions, and obtaining, according to the calling dependency relationship, transaction calling chains that cannot affect each other during an execution process.

Method, apparatus and device for parallel execution of smart contract, and medium

The present invention discloses a composite substrate for manufacturing an acoustic wave resonator and a Surface Acoustic Wave (SAW) resonator, and a manufacturing method thereof. The manufacturing method of the composite substrate includes: providing a base, wherein the base includes a first surface and a second surface that are opposite to each other; and a first groove sunken towards the second surface is formed on the first surface; and providing a piezoelectric plate, wherein the piezoelectric plate is matched with the first groove in shape, and a bottom of the first groove is integrated with the piezoelectric plate by bonding; and the composite substrate includes: a base, wherein the base includes a first surface and a second surface that are opposite to each other; and a first groove sunken towards the second surface is provided on the first surface; and a piezoelectric plate, wherein the piezoelectric plate is embedded into the first groove, and a top of the piezoelectric plate is higher than the first surface or flush with the first surface.

Manufacturing method of a composite substrate of an acoustic wave resonator

A blockchain data index method, a blockchain data storage method and a device are provided. This method first persists a block into a block file, persists an index data layer into an index database, then obtains a matching transaction location according to a query condition, and finally obtains a complete transaction from the block file. In the present application, through expanding the process of the blockchain data storage processing, the blockchain index data is stored in an independent index database and transaction atomicity of multi-database is guaranteed, and a data index mechanism, in which business information is customized in a transaction note field, and then a transaction is associated with the business information through the customized transaction note index field and finally the complete transaction is acquired based on key transaction information, is established.

Blockchain data index method, blockchain data storage method and device

A wing structure for a vehicle includes a plurality of multi-connecting-rod structures, the multi-connecting-rod structures are arranged along the main body of the vehicle, each of the multi-connecting-rod structure being arranged in a direction extending from a main body of the vehicle to a wingtip, each of the multi-connecting-rod structures comprising a plurality of connecting rods, and the connecting rods that are adjacent to each other being connected by a motor, a plurality of groups of ribs are sleeved onto each of the multi-connecting-rod structures, and each group of the ribs comprises a plurality of rib units, wherein in the same group of the ribs, adjacent rib units are connected by a ball hinge. The present technical solution can perform adjustment on a complex flow field or environment, the motion speed and the motion efficiency are significantly improved, and high maneuvering actions can be achieved.

Wing structure for vehicle, and vehicle

Disclosed are an interactive aggregate signature method, and a device and a storage medium, which relate to the technical field of data encryption. The method comprises: S, generating a challenge number according to random numbers of all participating terminals, and respectively sending the random numbers corresponding to the participating terminals, the challenge number and a proposal message to corresponding participating terminals; S, receiving a message from the participating terminals, and if partial signatures are included in the message, recording the partial signatures; S, determining whether the number of recorded partial signatures reaches a number required for passing of the proposal message; if so, proceeding to S, involving generating an aggregate signature by means of the partial signatures; and if not, outputting that the proposal message fails to be passed and an aggregate signature cannot be generated, or repeating steps Sto S

Interactive aggregate signature method, and device and storage medium

A method for balancing a cross-domain broadcast network load of a blockchain includes is provided. By evenly distributing the load of cross-domain broadcasting to multiple cross-domain nodes, a utilization rate of a blockchain system can be increased, and ability of processing transactions in the blockchain can be improved. A computer device and a non-transitory computer-readable storage medium are further provided.

Method for balancing cross-domain broadcast network load of blockchain, computer device, and non-transitory computer-readable storage medium

A thin film piezoelectric acoustic wave resonator and a manufacturing method therefor, and a filter. The thin film piezoelectric acoustic wave resonator includes: a first base, an upper electrode, a piezoelectric plate body, a lower electrode and an isolation cavity. The upper electrode, the piezoelectric plate body and the lower electrode are arranged on an upper surface of the first base and are stacked sequentially from top to bottom. The upper electrode, the piezoelectric plate body and the lower electrode have an overlapping region in a direction perpendicular to the surface of the piezoelectric plate body, in which a first gap is formed between the piezoelectric plate body and the upper electrode, and a second gap is formed between the piezoelectric plate body and the lower electrode. The isolation cavity surrounds the periphery of the piezoelectric plate body and connects the first and second gaps together. At least one connecting bridge is arranged between the piezoelectric plate body and the base.

Thin film piezoelectric acoustic wave resonator and manufacturing method therefor, and filter

A formal verification method for a certificate storage smart contract is provided. The method includes: obtaining the certificate storage smart contract, and performing certificate storage, forensic, and certificate storage and forensic authority granting according to different production environments and authority; adding standardization statements of formal standardization into the certificate storage smart contract; and obtaining a verification result by performing model verification on the certificate storage smart contract into which the standardization statements of the formal verification are added. A computer device and a non-transitory computer-readable storage medium are further provided.

Formal verification method for certificate storage smart contract, computer device, and non-transitory computer-readable storage medium

A packaging method and a packaging structure of a film bulk acoustic resonator are provided. The packaging method includes: providing a resonant cavity main structure including a first substrate and a film bulk acoustic resonant structure having a first cavity formed therebetween; forming a resonator cover by providing a second substrate and forming an elastic bonding material layer containing a second cavity; bonding the resonant cavity main structure and the resonator cover together through the elastic bonding material layer and removing elasticity of the elastic bonding material layer, where the second cavity is at least partially aligned with the first cavity; forming a through-hole penetrating through the resonator cover and exposing a corresponding electrical connection part of the film bulk acoustic resonant structure; and forming a conductive interconnection layer on a sidewall of the through-hole and on a portion of a surface of the resonator cover.

Packaging method and packaging structure of film bulk acoustic resonator

Disclosed are a fault early-warning method and a fault early-warning system applied to a gas turbine unit, and an apparatus. The method includes: calculating, by means of a mechanism model, predicted data of prediction parameters in a gas turbine unit, and performing data comparison on the predicted data and real data of the prediction parameters, so as to obtain an error matrix; constructing several Kriging primary functions according to the mechanism model; screening an optimal Kriging primary function from the several Kriging primary functions according to the error matrix, and performing error compensation on the mechanism model by using the optimal Kriging primary function; and performing fault early warning on the gas turbine unit by means of the mechanism model after error compensation. By means of the present application, the problem of a large number of fault false alarms in fault early warning of an existing gas turbine is solved.

Fault early-warning method and system applied to gas turbine unit, and apparatus

A method for active failure recovery of a single node improved based on PBFT algorithm is disclosed. The abnormal node first initiates a view change request, if (2+1) view change requests containing the same view value cannot be received within a specified period of time, the abnormal node enters a state to be recovered, and the node to be recovered initiates a recovery request to all nodes of the whole network, waits for replies from normal nodes and counts the number of replies, calculates a height of stable checkpoint of the whole network after receiving replies contain the same view value from (2+1) nodes, and update the state thereof to finally complete the recovery. This method solves an inherent problem in the PBFT algorithm that a failure in a single node cannot be recovered autonomously, so that a practicability of the PBFT algorithm is greatly improved.

Method and system for active failure recovery of single node improved based on PBFT algorithm, computer device and storage medium

The present disclosure relates to a smart contract processing method and a system, and a readable storage medium. By segmenting a function requiring performance analysis, establishing a symbol calculation model and calculating a GAS consumption formula, and performing further optimization, a GAS value consumed by the execution of a program containing a polynomial cycle can be automatically calculated, or a GAS value consumed by the execution of a program containing a non-linear cycle can be calculated with minimal human assistance, so as to reflect the performance thereof.

Smart contract processing method and system, computer device, and readable storage medium

The present disclosure provides a permission-controlled smart contract upgrade method. The method first deploys a contract upgrade smart contract, and then deploys a smart contract to be upgraded including information of a required minimum number of agreements on passing a proposal related to the contract. Then, any of the blockchain nodes receives a contract upgrade proposal submitted by one of the plurality of user clients. After the contract upgrade smart contract determines to pass the proposal, a proposing event is generated and then is forwarded to each user client participating in the contract. After the user client receives the proposing event, the user client receives user's vote and feeds it back to the contract upgrade smart contract. If the number of agreements exceeds the required minimum number of agreements, the proposal is passed and employed, and a binary replacement is performed to complete upgrade of the smart contract.

Permission-controlled smart contract upgrade method and system based on smart contract, blockchain node, and storage medium

Growing community of inventors

Hangzhou, China

Wei Li