Chinese Academy of Sciences

Chia Tai Tianqing Pharmaceutical Group Co., Ltd.

Lingwei Kong

Yong Wang

Zheng Wang

Chengde Wu

Feng Guo

Tao Yu

Ning Li

Changjun Wang

Jiahu Wu

Zongbin Li

Bijun Chen

Kaiwen Chen

Peipei Jiang

Fuxue Sun

Zhemin Rong

Haoqiang Li

The disclosure relates to the field of geotechnical engineering investigation in the civil engineering field. A portable in-situ gas pressure measuring device for a shallow gas-bearing stratum and a measuring method thereof are provided, the device includes a static cone penetrometer, a pressure-sensor control system, a static cone penetration rod and a probe. The static cone penetrometer is connected with the static cone penetration rod, the static cone penetration rod is connected with the probe; the probe is connected with the pressure-sensor control system. The portable in-situ pressure measuring device for a shallow gas-bearing stratum has simple structure and clear principle and is conveniently assembled and disassembled and easy to popularize and provides a measuring method.

Portable in-situ gas pressure measuring device for shallow gas-bearing stratum and measuring method thereof

Disclosed in the present invention are a crystalline Form of pyrido[1,2-a]pyrimidone analog, a preparation method therefor and an intermediate thereof. 

Pyrido[1,2-A]pyrimidone analog, crystal form thereof, intermediate thereof and preparation method therefor

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Hubei, China

Lingwei Kong