Tencent Technology (shenzhen) Company Limited

Huawei Technologies Co., Limited

The South China University of Technology

Huawei Cloud Computing Technologies Co., Ltd.

Yulong Computer Telecommunication Scientific (shenzhen) Co., Ltd.

Wanjie (shanghai) Network Co., Ltd.

Rong Chen

Xiangyang Wu

Meng Chen

Yong Wei

Feifei Liu

Zhi Zhao

Liang Dong

Yuanbin Chen

Xuan Jiang

Shijun Liao

Xinlong Tian

Junming Luo

Xiaoping Lai

Yanping Tang

Zengxin Sun

Dechun Li

Ming Jiang

Jian-Hui Li

Yajun Zhang

Yun-Fei Zhang

Yi-Xue Lei

Qian Zheng

Zhixin Li

Yaofeng Peng

Shengmei Wu

Zhen-Wei Shi

Kuan Wu

Changye Jia

The present invention discloses a low-platinum catalyst based on nitride nanoparticles and a preparation method thereof. A component of an active metal of the catalyst directly clades on a surface of nitride particles or a surface of nitride particles loaded on a carbon support in an ultrathin atomic layer form. Preparation steps including: preparing a transition-metal ammonia complex first, nitriding the obtained ammonia complex solid under an atmosphere of ammonia gas to obtain nitride nanoparticles; loading the nitride nanoparticles on a surface of a working electrode, depositing an active component on a surface of the nitride nanoparticles by pulsed deposition, to obtain the low platinum loading catalyst using a nitride as a substrate. The catalyst may be used as an anode or a cathode catalyst of a low temperature fuel cell, has very high catalytic activity and stability, can greatly reduce a usage amount of a precious metal in the fuel cell, and greatly reduces a cost of the fuel cell. The present invention has important characteristics of being controllable in deposition amount, simple and convenient to operate, free of protection of inert atmosphere, and etc., and is suitable for large-scale industrial production.

Low-platinum catalyst based on nitride nanoparticles and preparation method thereof

A redundancy method includes that a first disaster management function (DMF) device on a first site side receives a first request including identification information of a first virtual machine (VM) and a recovery point objective (RPO), allocates a maximum allowable delay time to each node that input/output (IO) data of the first VM passes through in a redundancy process, and sends a second request to a second DMF device on a second site side. The second request includes a maximum allowable delay time of a second replication gateway function (RGF) device on the second site side, and a maximum allowable delay time of an IO writer function (IOWF) device on the second site side and requests the second site side to perform redundancy on the first VM. Hence, the RPO requirements of the tenants can be satisfied in an entire redundancy process.

Redundancy method, device, and system

A noise reduction door related to a noise reduction device in order to resolve a problem that the noise reduction door cannot meet a requirement for different noise reduction effects and different air duct resistance. The noise reduction door includes a T-shaped mechanical part, two fan-shaped mechanical parts, and a door plate. The T-shaped mechanical part and the fan-shaped mechanical part are connected to the door plate using a detachable connection mechanical part. The T-shaped mechanical part is located on a central axis of the door plate, and the two fan-shaped mechanical parts are respectively located on two sides of the T-shaped mechanical part. Therefore, the fan-shaped mechanical part on the door plate may be changed to have different installation positions and installation manners in order to obtain noise reduction doors in different forms. The embodiments of the present disclosure are applied in cabinet noise reduction.

Noise reduction door

A low-platinum catalyst based on nitride nanoparticles and a preparation method thereof. A component of an active metal of the catalyst directly clades on a surface of nitride particles or a surface of nitride particles loaded on a carbon support in an ultrathin atomic layer form. Preparation steps including: preparing a transition-metal ammonia complex first, nitriding the obtained ammonia complex solid under an atmosphere of ammonia gas to obtain nitride nanoparticles; loading the nitride nanoparticles on a surface of a working electrode, depositing an active component on a surface of the nitride nanoparticles by pulsed deposition, to obtain the low platinum loading catalyst using a nitride as a substrate. The catalyst may be used as an anode or a cathode catalyst of a low temperature fuel cell.

An embodiment of the disclosure provides a resource partition aggregating method and a device, the method includes acquiring a resource utilization ratio of each resource partition in a first signal unit. When there is a resource utilization ratio of each resource partition of at least two adjacent resource partitions in the first signal unit is less than a first preset threshold, whether a zone index used after aggregating the at least two adjacent resource partitions causes a communication interference with zone indexes used by resource partitions in an adjacent second signal unit is determined. If no communication interference is caused, determining area distribution parameters of the aggregated at least two adjacent resource partitions. A broadcast message carrying the area distribution parameters to a vehicle terminal is sent. By using the embodiment of the present disclosure, a resource utilization ratio can be improved.

Resource partition aggregating method and device

The present disclosure relates to network data analysis technology, and discloses a method and an apparatus for recommending a network service. The method includes: acquiring a historical browsing record of each user account on a network service; establishing a browsing sequence of each user account according to the historical browsing record corresponding to each user account; mapping the browsing sequence of each user account to a mapping value; aggregating all user accounts according to the mapping value corresponding to each user account, to obtain at least one user account group; and recommending the network service to each user account based on a user account group to which the user account belongs. The present disclosure improves an accuracy rate of whether a recommended network service satisfies an interest of a user in the network service.

Method and apparatus for recommending network service

A virtual machine creation method and apparatus are provided to automatically create a virtual machine, and avoid an error that occurs during creation of the virtual machine. The method includes obtaining, by a cloud management platform at a production site, a first redundancy policy, obtaining, by the cloud management platform, storage replication information from M storage devices at the production site, determining, by the cloud management platform based on the storage replication information and from the M storage devices, N storage devices that meet the first redundancy policy, where N is an integer, and N&#x2264;M, controlling, by the cloud management platform, a virtualization platform to create a virtual machine, and instructing, in a virtual machine creation request, to create a magnetic disk used by the virtual machine on the N storage devices to create the virtual machine.

Virtual machine creation according to a redundancy policy

The present invention relates to an aiming method for a shooting game, which is applied to a mobile terminal having a touch display screen. The method comprises the following steps: a positioning step, acquiring a current rotation angle of a virtual camera when the mobile terminal is in a game interface; a rotation step, acquiring a coordinate position of a contact object when detecting that there is contact on the game interface, so that the current rotation angle of the virtual camera matches the coordinate position; and an adjusting step, acquiring a corresponding waggle angle via a sensor of the mobile terminal when detecting that the mobile terminal is waggling, so that the current rotation angle of the virtual camera matches the waggle angle. The present invention further relates to an aiming device for a shooting game.

Aiming method and device for shooting game

An instant messaging message processing method is disclosed and includes: receiving, by a server, an instant messaging message, user account information of a destination user terminal, and user account information of a source user terminal from the source user terminal; determining, by the server, a risk level of the instant messaging message according to a preset rule and the user account information of the source user terminal; and if the risk level of the instant messaging message reaches a first risk level, transmitting, by the server when, the instant messaging message and preset pre-warning information to the destination user terminal according to the user account information of the destination user terminal, wherein the pre-warning information comprises security prompt information which is used for prompting a user of the destination user terminal to notice a security risk of the instant messaging message. An instant messaging message processing device is also disclosed.

Instant messaging message processing method and device and storage medium

The present disclosure discloses a network service recommendation method and apparatus, which belong to a network data analysis technology. The method includes: retrieving, according to a historical browsing record of a user during use of a network service, a label corresponding to each network service used by the user; determining, according to a preset label-topic correspondence, and by using the label corresponding to each network service used by the user, first n topics corresponding to the user; acquiring, according to a preset topic-network service correspondence, respective corresponding recommended network service lists of the first n topics, the recommended network service list of each topic including at least one network service; and recommending a network service to the user according to the respective corresponding recommended network service lists of the first n topics.

Network service recommendation method and apparatus

An identity verifying method, an account acquiring method, a mobile terminal, and a storage medium are disclosed, and the account acquiring method includes: receiving, by a first mobile terminal, a user operation of accepting identity verification on the first mobile terminal, playing voice information which is stored in the first mobile terminal and has a correspondence relationship with a user account of a user of the first mobile terminal, and meanwhile collecting voice data of the played voice information using voice receiving means; sending, by the first mobile terminal, verification information comprising the user account and the voice data to a server to allow the server to determine whether the user passes the identity verification according to the verification information; and receiving, by the first mobile terminal, an identity verification result returned by the server. Thus, the voice information is used for identity verification.

Identity verifying method, account acquiring method, and mobile terminal

Growing community of inventors

Guangdong, China

Rong Chen