Ge Medical Systems Global Technology Company, LLC

Petrochina Company Limited

Beijing Baidu Netcom Science and Technology Co., Ltd.

Chinese Academy of Agricultural Sciences

Beijing Municipal Research Institute of Environmental Protection

Beijing Jiaxun Feihong Electrical Co., Ltd.

Lin Wei Jiang

Xuesong Lu

Mengjun Zhao

Bin Zhang

Yu Ma

Guang Yang

Wen Liu

Hua Tian

Caineng Zou

Lina Zhang

Shaobo Liu

Keyu Liu

Shuichang Zhang

Qingong Zhuo

Yanjie Gong

Junjia Fan

Changqing Sun

Xingzhi Ma

Zhuhua Hu

Xinyu Yan

Yannan Hu

Yuehui Ma

Xuexue Liu

Yabin Pu

Yanli Zhang

Xiaoying Zhu

Tianxiang Xia

Peiqiang Yang

Provided is a portable XRF data screening method for heavy metal contaminated soil, relating to the technical field of heavy metal contamination test. The method includes the following steps: (1) laboratory test; (2) XRF test; and (3) calculation of a recheck interval: dividing test data into four areas by a contaminant screening value Xas a horizontal line and a correlation-derived site screening value as a vertical line to calculate the recheck interval. The method is simple and efficient, and is beneficial to saving investigation costs and shortening a project cycle.

Portable XRF data screening method for heavy metal contaminated soil

The invention relates to a single nucleotide polymorphism (SNP) marker related to a Chinese horse short stature trait. The SNP molecular marker is located at the 501position of a sequence shown in SEQ ID NO.1, polymorphism is G/A, and the SNP marker corresponds to base pair 18,205,998 on chromosome 8 in a horse. The SNP marker related to the Chinese horse short stature trait and use thereof provided by the present invention have the following advantages that: (1) the molecular marker is not restricted by the age, sex and the like of Chinese horses, is used in early breeding of the Chinese horses, performs accurate screening immediately at birth, and significantly promotes the breeding process of dominant pony varieties of the Chinese horse; (2) a method for detecting SNP of a Chinese horse TBX3 gene is accurate, reliable, and easy to operate.

Single nucleotide polymorphism marker related to Chinese horse short stature trait and use thereof

A method, apparatus and system for transmitting data. The system includes: the load balance gate wall translating a virtual MAC address of the virtual server in a destination address of a data packet from a client to a real MAC address of the real server according to a pre-configured address mapping relationship between a real server and a virtual server; the load balance gate wall sending a modified data packet to the virtual switch; the virtual switch determining a data packet flowing into the real server after receiving the data packet from the load balance gate wall, then translating a virtual IP and a virtual port of the virtual server in the destination address in the determined data packet to a real IP and a real port of the real server; and the virtual switch sending the modified data packet to the real server.

Method, apparatus and system for transmitting data

A method and an apparatus for measuring oil content of a tight reservoir based on nuclear magnetic resonance includes applying a pulse sequence to a tight reservoir rock, and after applying a first pulse and a last pulse in the pulse sequence, applying a gradient magnetic field to the tight reservoir rock, respectively, directions of the two applied gradient magnetic fields being opposite to each other, wherein the pulse sequence is composed of three 90&#xb0; pulses; acquiring a nuclear magnetic resonance signal of the tight reservoir rock; and determining oil content of the tight reservoir rock according to an intensity of the nuclear magnetic resonance signal. The method can accurately distinguish an oil phase nuclear magnetic resonance signal and a water phase nuclear magnetic resonance signal in nanopores of tight reservoir rock, thereby effectively improving the accuracy of the detection result of the oil content of the tight reservoir rock.

Method and apparatus for measuring oil content of tight reservoir based on nuclear magnetic resonance

The present disclosure discloses a core holder for a micron CT observation and an experimental method thereof. The core holder for a micron CT observation comprises: a carbon fiber pipe and a base; the base comprises a fluid injection channel therein; the carbon fiber pipe is provided with a core mounting cavity and a carbon fiber plunger therein; the carbon fiber pipe is a tubular structure with one end closed and the other end open; the carbon fiber plunger can fix the core between the closed end of the carbon fiber pipe and the carbon fiber plunger; the other end of the carbon fiber pipe is in a detachable sealed connection with an outlet of the fluid injection channel of the base. The core holder for a micron CT observation reduces the distance between the core and the micron CT radiation source, and improves the resolution.

Core holder for micron CT observation and experimental method thereof

A rotation mechanism for use with an x-ray wallstand housing includes a rotating shaft, a gas spring, a connecting rod, a ball screw nut seat, a ball screw base, a brake, a clutch, a motor, a conveyor belt, a ball screw and a damper disposed between said ball screw base and said ball screw nut seat.

Rotation mechanism for X-ray wallstand housing, X-ray wallstand housing and radiography system using the same

The present invention provides one kind of IP telecom network system and its realizing method, and a method of building virtual private network and carrying out multicast based on this IP telecom network, and a method of managing resource in this IP telecom network etc. The IP telecom network system includes at least one complex address no-connection data network including at least one address mapping device, several IP networks and several edge pass devices for connection between the IP network and data network address. Each of the devices and the edge pass devices in the data network has one distributed data network address, each of the devices and the edge pass devices in the IP network has one distributed IP address, and the mapping relation between the IP address and the data network address is maintained in the address mapping table in the address mapping device. The IP network provided by this invention can be work as the next generation IP telecom network The IP telecom network system can realize the integration of telecom business in one IP network.

System and communication method of IP telecommunication network and its application

An X-ray imaging stand that supports an upright X-ray imaging panel by a column standing vertically through a carriage, includes a bar-like member having a longitudinal bar section that extends from the carriage in the upward direction over the upper end of the X-ray imaging panel and a horizontal bar section that extends from the leading end of the longitudinal bar section in the horizontal direction over the surface of the X-ray imaging panel receiving the X-ray, and a support mechanism that supports the longitudinal bar section of the bar-like member above the carriage such that the angle thereof is variable in plural stages in a plane parallel to the surface of the X-ray imaging panel receiving the X-ray.

X-ray imaging stand and X-ray imaging apparatus

Growing community of inventors

Shanghai, China

Lin Wei Jiang