Chinese Academy of Sciences

Sabic Global Technologies B.v.

Baidu Online Network Technology (Beijing) Co., Ltd.

Yang Dong

James Edward Pickett

Steven Marc Gasworth

Liping Zheng

Zhen Yu Liu

Qijia Fu

Changchun Yang

Yong Guan

Xu Xue

Xiaoxiao Zhang

Xiaohang Wang

Haiying Wang

Hongxia Xi

A gyro measurement while drilling system, which includes a strapdown inertial unit, a filtering and level conversion module, a data acquisition and data communication module, a driving mechanism, a driving control module and a navigation computer. A gyro measurement while drilling method, which is used in the measurement while drilling system and includes one or a combination of the following methods: a full parameter variable compensation method, an initial alignment algorithm and a continuous measurement while drilling method. The system and method of the present disclosure can meet the most demanding application scenarios in the field of petroleum drilling measurement, i.e., measurement while drilling (MWD), and are compatible with other scenarios, such as wireline measurement, gyro steerable measurement and other application fields; the system and method also solve the problems of environmental adaptability, bias repeatability and bias error of a gyroscope in a high-temperature and vibration environment, and solve the technical problems of an inertial instrument in a deep steerable drilling application scenario from the perspective of systems.

Gyro measurement while drilling system and method therefor

The present invention provides a method, apparatus, and system for voice verification, wherein the method comprises: at a network side, obtaining a user voice communication number according to a voice verification request from a user side, and determining voice verification information corresponding to the voice verification request; at the network side, initiating a call to a corresponding user according to the user voice communication number, and in the case of call through, playing the determined voice verification information to the user; at the user side, performing an automatic listening and recording operation when monitoring that the user is called, and upon termination of the call, sending recording information obtained from the recording to the network side; at the network side, determining a verification result according to the voice verification information and the recording information.

Method, apparatus and system for voice verification

In an embodiment, a method for making an infrared radiation absorbing coating mixture comprises: forming an ITO coating mixture comprising ITO and a first coating matrix, wherein the first coating matrix comprises the partial condensate of a silanol, wherein the ITO coating mixture is free of colloidal silica; forming a colloidal silica coating mixture comprising colloidal silica and a second coating matrix, wherein the second coating matrix comprises the partial condensate of a silanol; and mixing the ITO coating mixture with the colloidal silica coating mixture to form a combined mixture. The combined mixture does not comprise a precipitate visible to the unaided eye after 2 weeks without stirring.

Infrared radiation absorbing articles and method of manufacture

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Beijing, China

Yang Dong