Hangzhou Hikvision Digital Technology Co., Ltd.

Henghe Materials & Science Technology Co., Ltd.

Wuhan Lotus Cars Co., Ltd.

Ningbo University of Technology

State Grid Jinhua Power Supply Company

Linhai Zhenyi Arts & Crafts Co., Ltd.

Bin Wang

Jiadong Chen

Jun Li

Feng Zhang

Xu Wang

Bo Zhang

Wei Wang

Ying Li

Si Chen

Da Chen

Kezhang Lin

Xing Wang

Nengxiao Lu

Li Wan

Xiang Dong Sun

Xiaohong Guan

Guanfeng Jiang

Yunpeng Guo

Zhiwei Zhang

Guoyun Wang

Yulong Shen

Yuqun Fang

Hui Huang

Haojian Zhang

Wendong Jiang

Weinan Qin

Weihong Xu

Chonghua Wang

Meng Jun Yang

Xunwen Xiao

Chi Yu

Tao Sui

Kaimei Zhao

Minjie Hu

Jianye Cui

Xiangdong Sun

Jianghua Fang

Shaopeng Zhou

Zhiyi Wang

Zhicheng Bi

Haitao Zhao

The present invention relates to a preparation method of a BOPP film stiffening agent, including: taking cyclopentadiene or a derivative thereof and a norbornene monomer or C8 cycloolefin as a polymerization raw material, obtaining a polymerization resin liquid by continuous high-temperature polymerization, then preparing high-softening-point aliphatic hydrogenation petroleum resin through two-stage catalytic hydrogenation reaction and removing low-boiling-point light components and solvents; and then obtaining the BOPP film stiffening agent by mixing and extruding with homo-polypropylene. The stiffening agent prepared by the present invention has a very good anti-dissolution performance and environmental protection performance which is suitable for modification of a BOPP cigarette film, and has good market application prospects.

Preparation method of BOPP film stiffening agent

A data privacy protection method based on multi-layer encryption is disclosed, which is related to the technical field of network technologies. The method includes: by an initial client, encrypting service data based on a public key set to obtain first to-be-processed data, and sending the first to-be-processed data to a next client; by an intermediate client, obtaining the first to-be-processed data sent by a previous client, encrypting service data based on a public key set to obtain second encrypted data, and sending second to-be-processed data and the second encrypted data to a next client; by a final client, obtaining the second to-be-processed data and the second encrypted data sent by a previous client, decrypting the second to-be-processed data and the second encrypted data based on its own private key, to obtain service data of each of other clients other than the final client itself, and sending the service data of all of the clients in a data privacy protection system to a preset service platform. The embodiments of the present application are applied to reduce the risk of user's privacy data leakage.

Data privacy protection method based on multi-layer encryption

A battery system of a vehicle, a charging and discharging method, and a vehicle. The system includes an energy storage apparatus () and a direct current (DC) charging and discharging interface (), where the energy storage apparatus () includes a first battery pack () and a second battery pack (), and a first inter-battery switch () and a second inter-battery switch () are disposed between adjacent battery packs; an incoming line terminal () of the first inter-battery switch () is connected to a first electrode of the first battery pack (); a second outgoing line terminal () of the second inter-battery switch () is connected to a second electrode of the energy storage apparatus (); and a first electrode of the DC charging and discharging interface () is connected to the first electrode of the energy storage apparatus ().

Battery system of vehicle, charging and discharging method, and vehicle

The present disclosure provides methods and apparatuses for implementing high-speed cryptographic operations based on software-hardware collaboration, and electronic devices. In the embodiments of the present disclosure, by analyzing software and hardware computing resources in real-time, the cryptographic device driver allocates the one or more target resources for cryptographic computation to the reference data packets. When the one or more target resources include the target cryptographic device, the cryptographic device executes, according to the characteristics of the target cryptographic algorithm used to perform cryptographic computation on the reference data packet, the acceleration operation corresponding to the target cryptographic algorithm for the cryptographic computation on the reference data packets, such as grouping the reference data packets, to improve a concurrent execution rate of an algorithm and cope with situations with a large amount of service concurrency and data processing.

Methods and apparatuses for implementing high-speed cryptographic computation based on software-hardware collaboration, and electronic devices

Traffic proxy-based Internet of Things terminal key information leakage monitoring methods and systems, electronic devices, storage media, and computer programs. An example method includes: receiving a proxy request sent by an Internet of Things terminal, the proxy request including protocol related information of the Internet of Things terminal, and the protocol related information including part or all of device model information, service type information, and data packet information; according to the protocol related information of the Internet of Things terminal, determining a target protocol corresponding to the Internet of Things terminal; and allocating a target proxy service to the Internet of Things terminal according to the target protocol, and a usage state and an online state of each proxy service in a full traffic proxy pool, and performing key information monitoring on the traffic of the Internet of Things terminal by the target proxy service.

Information leakage monitoring method and system, and electronic device

The present invention relates to a preparation method of a highly aromatic hydrocarbon hydrogenated resin, comprising the processes of fraction cutting, pretreatment, catalytic polymerization, two-stage hydrogenation, etc. The highly aromatic hydrocarbon hydrogenated resin obtained by the present invention has excellent compatibility with elastomers such as SBS, SIS and the like, and is suitable for hot melt adhesives, coatings, rubber modification, etc.

Preparation method of highly aromatic hydrocarbon hydrogenated resin

The present invention discloses a catalytic hydrogenation method for carbon nine resin, comprising the following steps: 1) adding a Pt—W—Y/γ-AlOcatalyst in the first half of a fixed bed, adding a Pd—Zr—Nd/γ-AlOcatalyst in the second half of the fixed bed, and feeding hydrogen for reduction; and 2) catalytic hydrogenating the pretreated carbon nine resin in the fixed bed. In the present invention, different catalysts capable of reacting under the same catalytic conditions are added in the first and second halves of the fixed bed, and the two different catalysts play different roles, and can be active and complementary to each other under the same conditions. The synergistic effect of the two catalysts plays a good catalytic role. Moreover, the production process is simplified, and the production cost is saved.

Catalytic hydrogenation method for carbon nine resin

Disclosed are an installation device for air gap arrester and installation method thereof. The installation device includes a handheld pole, a wire clamping mechanism provided at the bottom end of the handheld pole for clamping a split wire, a tray provided on the handheld pole for lifting the arrester, an insulating rope provided on the tray, a fixing rope provided on the handheld pole for temporarily fixing the arrester, and a scale provided on the handheld pole for measuring the distance from the bottom end of the arrester to the bottom end of the handheld pole. The installation device for air gap arrester and installation method thereof have high installation efficiency.

Installation device for air gap arrester and installation method thereof

Combined hair straightener and curler

The present invention relates to a folding canopy with central locking mechanism, including a central locking mechanism including a top disk, a lower disk and a lock lever. The lower disk includes a locking unit for engaging with the lock lever, and the locking unit includes a lock plate and an elastic member. The lock plate is provided therein with a locking hole, and the lock lever is used to penetrate the locking hole. The elastic member is used for tilting the locking hole in the lock plate to a hole-tilted position. When the locking hole is tilted to the hole-tilted position and a wall of the locking hole is in frictional contact with a side wall of the lock lever, the central locking mechanism completes locking.

Folding canopy with central locking mechanism

Growing community of inventors

Zhejiang, China

Bin Wang