Hon Hai Precision Industry Co., Ltd.

Hongfujin Precision Industry (wuhan) Co., Ltd.

Hong-fu Jin Precision Industry (shenzhen) Co., Ltd.

Huawei Technologies Co., Limited

Shenzhen Zhuneng Technology Co., Ltd.

Shenzhen Institutes of Advanced Technology

Scienbizip Consulting(shenzhen)co., Ltd.

Shenzhen Catalys Technology Co., Ltd.

Greenvalley Braintech (shenzhen) Medical Technology Co., Ltd.

Bsb Power Company Ltd

Shenzhen Mindray Bio-medical Electronics Co., Ltd.

Yang Xiao

Chin-Wen Yeh

Yun-Lung Chen

Hairong Zheng

Yan Liu

Zhi-Jian Peng

Lili Niu

Long Meng

Dun-Jun Zhou

Kai Pei

Congzhi Wang

Fei Li

Jing Tian Li

Zhen-Neng Lin

Chao Yang

Jing Li

Fei Yan

Hai-Shan Sun

Huawang Liu

Ming Qian

Xiaobing Ding

Feiyan Cai

Qiwei Lang

Bingwen Li

Wen-Bo Li

Kun Cai

Zejun Peng

Zhiting Deng

Wenqiang Zhi

Leping Wu

Kui Guo

Disclosed are a chiral multidentate ligand (I), a preparation, and an application thereof. In this method, compound (M1) is subjected to condensation with compound (M2) followed by amine deprotection in the presence of a deprotection reagent to obtain compound (M4). Compound (1) is subjected to deprotonation by butyl lithium and phosphorization followed by dimethylamino group substitution to produce compound (3). The compound (3) and the compound (M4) are reacted in the presence of triethylamine to produce chiral multidentate ligands.

Chiral multidentate ligand, and application thereof in asymmetric hydrogenation

Handheld game controller

Crawler movable chassis

A microfluidic system, including: a container, an ultrasound transmitter assembly, and a phononic crystal plate. The container is configured to accommodate a solution containing microparticles. The ultrasound transmitter assembly is configured to transmit ultrasonic waves to the phononic crystal plate, where the ultrasonic waves have a frequency which is the same as a resonance frequency of the phononic crystal plate. The phononic crystal plate is placed in the solution, and configured to generate a local acoustic field on a surface of the phononic crystal plate under excitation of the ultrasonic waves, and induce an acoustic microstreaming vortex to generate an acoustic streaming shear stress on the microparticles. The phononic crystal plate defines therein cavities, the respective cavities are arranged periodically in the phononic crystal plate, and all the respective cavities are filled with gas.

Microfluidic system and operation method thereof

Swim vest

Robot

A method and a device for acquiring biomechanical parameters based on an ultrasonic elastomyogram are provided, wherein the method includes: synchronously collecting a dynamic myodynamics image sequence and a dynamic elasticity image sequence of a single skeletal muscle under continuous stretching; acquiring a myodynamics parameter corresponding to each myodynamics image in the dynamic myodynamics image sequence and an elasticity modulus value corresponding to each elasticity image in the dynamic elasticity image sequence respectively; and generating an ultrasonic elastomyogram curve with the myodynamics parameter as the abscissa and the synchronized elasticity modulus value as the ordinate, and estimating a muscle biomechanical parameter based on the ultrasonic elastomyogram curve. Dynamically changing biomechanical parameters can be obtained, and the obtained muscle biomechanical parameters have relatively high accuracy.

Method and device for acquiring biomechanical parameters based on ultrasonic elastomyogram

An ultrasound deep brain stimulation method and system, the ultrasound deep brain stimulation method comprises: medically imaging a head of an animal or a human being, to generate image data; creating a head 3D digital model according to the image data; creating a 3D digital model of an ultrasound transducer array according to structure, density and acoustic parameters information of the ultrasound transducer array; generating a first ultrasound transmitting sequence according to the head 3D digital model, the 3D digital model of the ultrasound transducer array, structure, density and acoustic parameters of the skull and brain tissues, and structure, density and acoustic parameters of the ultrasound transducer array; and controlling the ultrasound transducer array to transmit ultrasound waves in accordance with the first ultrasound transmitting sequence, to implement ultrasound deep brain stimulation to the brain nucleus to be stimulated. By the use of the present invention, ultrasound can noninvasively passes through the skull to be focused in a deep brain region. By the use of different ultrasound transmitting sequences, ultrasound neuromodulation can be realized, and research on an action mechanism for the ultrasound neuromodulation can be performed.

Ultrasound deep brain stimulation method and system

The method provided in the embodiments of this application includes: obtaining, by a server, a first key (Ksm) shared with a gateway; receiving, by the server, an encrypted first random factor (Rand-M-Encry), a first data digest (Data-Hash), and encrypted first data (Data-Encry) that are sent by a terminal; decrypting, by the server, the Rand-M-Encry by using the Ksm, to obtain a second random factor (Rand-M'); performing, by the server, an operation on the Rand-M&#x2032; and Kpsa-xi by using a second preset algorithm, to generate a third key (K&#x2032;sx); decrypting, by the server, the Data-Encry by using the K&#x2032;sx, to obtain second data (Data&#x2032;); performing, by the server, an operation on the K&#x2032;sx and the Data&#x2032; based on a first preset algorithm to obtain a second data digest (Data-Hash&#x2032;); and if the Data-Hash&#x2032; is the same as the Data-Hash, determining, by the server, that authentication of the terminal succeeds.

Authentication method, server, terminal, and gateway

Embodiments of the present invention provide a data transmission method, apparatus, and system. The method is applied to a data transmission system. The data transmission system includes a system platform and a terminal device. A method performed by the system platform includes: determining, based on a type of the terminal device and a type of data generated by the terminal device, a data transmission rule of the data generated by the terminal device; and sending a data transmission message to the terminal device, where the data transmission message carries the data transmission rule, so that the terminal device sends, to the system platform based on the data transmission rule, the data corresponding to the data transmission rule. Massive data can be effectively prevented from being transmitted to the system platform by configuring the data transmission rule, and data with a high priority can be preferentially processed, to improve system performance.

Data transmission method, apparatus, and system

A method and an apparatus for keeping network address translation mapping alive are provided. The method includes: receiving, by a network address translation NAT device, a probe request sent by an internal network device; sending a probe response to the internal network device, where the probe response carries indication information, and the indication information indicates that the internal network device does not actively initiate a heartbeat message to keep network address translation mapping alive; allocating at least two public network addresses to the internal network device from an address resource pool, and using in each time period of a subsequent session process between the internal network device and an external network device, one of the at least two public network addresses as a current active address in the time period, to map the private network address of the internal network device to the current active address.

Method and apparatus for keeping network address translation mapping alive

The present application provides a collecting module of a lead-acid battery and new lead-acid battery and the winding displacement is simpler when collecting the status parameters of the lead-acid battery by disposing the collecting module in the housing of the lead-acid battery and the security is improved when detecting. At the same time, the data storing unit of the collecting module not only stores the collected raw data of the battery at the time of shipment from the factory, but also stores the collected status parameters of the battery in use, which facilitates the subsequent comparison between the raw data and the status parameters, a more accurate determining on the health status of the lead-acid battery and acquisition for the optimal maintenance of the lead-acid. Further, the internal temperature of the lead-acid battery can be more accurately collected by disposing the internal temperature acquisition unit in the lead-acid battery, and if the overheating of the battery occurs, it can be notified in time and dealt with, thus the scrapping of the battery is decreased and the power supply quality for the base station is improved.

Collecting module, new lead-acid battery, charge and discharge control device and intelligent battery

A vending machine with selectable internal heating and internal cooling functions includes a cabinet and a heat transmitting system. The cabinet includes a heat source and a goods storage space. The heat transmitting system includes a first air inlet tube, a second air inlet tube, an air outlet tube, and a gas valve. The first air inlet tube connects the heat source to the gas valve. The second air inlet tube connects the goods storage space to the gas valve. The air outlet tube connects the gas valve to the outside of the vending machine. The gas valve can connect the first gas inlet tube to the second gas inlet tube to heat the goods storage space using heat generated by the heat source, or can connect the first gas inlet tube to the gas outlet tube to dissipate heat generated by the heat source.

Vending machine with heat transmission system

Growing community of inventors

Shenzhen, China

Yang Xiao