Boe Technology Group Co., Ltd.

China Institute of Water Resources and Hydropower Research

Boe Regenerative Medicine Technology Co., Ltd.

Yufei Zhao

Yujie Wang

Ruilang Cao

Jin Pi

Lipeng Liu

Xingsong Sun

Dehua Chang

Yang Liu

Qiang Zhang

Xin Jin

Xiaogang Wang

Shuai Liu

Juan Wang

Long Jiang

Ping Sun

Ruizhi Fu

Xingchao Lin

Yuandong Liu

Shuang Gao

Yongyu Ling

Qingwei Duan

Yuqin Tan

Zhisheng Li

Qiang Shen

Shangxin Feng

Lifeng Zheng

Donghua Liu

Xuejiao Dong

Xiaotong Yang

A method for cryopreserving cells, a cell cryopreservation solution and a composition are provided. The method includes: providing a suspension for the cells to be cryopreserved in a cell cryopreservation solution; and cryopreserving the suspension. The cell cryopreservation solution includes dimethyl sulfoxide, plasma, citric acid, sodium citrate, potassium dihydrogen phosphate or sodium dihydrogen phosphate, glucose and adenine.

Cell cryopreservation solution and method for cryopreserving cells

A drilling device for surveying front rock-mass intactness of a tunnel face for a tunnel constructed by a TBM and a method using the same are provided. The drilling device includes a drilling assembly, a drill-attitude control assembly, a data monitoring assembly and a TBM-platform fixing seat. The drilling assembly is connected to a TBM hydraulic system to obtain power, to drill the rock mass by an alloy bit through rotation and translation thereof. The drill-attitude control assembly controls an angle, a direction and a position of a drill rod and maintains drilling accuracy and stability. The data monitoring assembly acquires and stores a drilling dynamic-response signal by a high-accuracy sensor and a data recorder, to analyze an intactness characteristic of the rock mass. The TBM-platform fixing seat mounts the drilling device on the TBM.

Drilling device for surveying front rock-mass intactness of tunnel face for tunnel constructed by TBM and method using the same

The disclosure discloses an adaptive lining structure of a tunnel in complex environment and a construction method thereof, and relates to the technical field of tunnel construction, comprising a lining, a pressure regulating layer and a connecting cylinder; wherein the pressure regulating layer is provided between the lining and a surrounding rock; and the connecting cylinder is provided in the tunnel and runs through the top of the lining. The adaptive lining structure of a tunnel in complex environment and the construction method in the disclosure are simple in structure, reasonable in design and convenient for efficient construction; it can deal with engineering problems such as lining cracking caused by high internal water and high external water in the tunnel, and can ensure the safety of tunnel lining in different periods.

Tunnel adaptive lining structure in complex environment and construction method thereof

The present disclosure provides a culture device and a preparation method for a cell membrane, and relates to the field of cell culture technology. The culture device for a cell membrane includes a semiconductor refrigerator, and one or more culture vessels configured to culture a cell membrane. The semiconductor refrigerator includes a first insulating substrate, a second insulating substrate, and at least one semiconductor thermocouple disposed between the first insulating substrate and the second insulating substrate. The one or more culture vessels are disposed on a side of the first insulating substrate away from the second insulating substrate.

Culture device and preparation method for a cell membrane

Growing community of inventors

Beijing, China

Yufei Zhao