Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Chang Jianghua"'
Publikováno v:
Zhongguo linchuang yanjiu, Vol 36, Iss 6, Pp 856-859 (2023)
Objective To investigate the clinical efficacy of thoracoscopic segmental resection and lobectomy in the treatment of early lung cancer. Methods A total of 70 patients with lung cancer of Ⅰa stage who received operation from June 2018 to 2022 at Na
Externí odkaz:
https://doaj.org/article/276a1231985b40c18c70a65df7fae920
Akademický článek
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Publikováno v:
2021 5th International Conference on Robotics and Automation Sciences (ICRAS).
Automatic hole searching system of coal bed methane vehicle-mounted rig including vehicle-mounted rig frame, gyrator, automobile chassis, brace oil cylinder, front left leg, front right leg, rear right leg, rear left leg, front left translation pair,
Publikováno v:
2021 5th International Conference on Robotics and Automation Sciences (ICRAS).
Core drilling is the most direct means to obtain geological information. The angles of drilling in mine tunnels are various, the horizontal drilling is more difficult. Horizontal hole drilling requires the rig move easily, Wide range of speed and tor
Autor:
Fan Dong, Wang Hejian, Wang Zhenya, Wang Ruize, Zou Zujie, Tian Hongliang, Zhang Yang, Lu Feifei, Chang Jianghua
Publikováno v:
2019 5th International Conference on Control, Automation and Robotics (ICCAR).
In order to solve the problem of rig relocation in the roadway with poor transportation conditions, light alloy materials are used instead of traditional carbon steel, modular pump station design, stepless expansion of lifting frame, and quick assemb
Publikováno v:
2019 IEEE 3rd International Conference on Green Energy and Applications (ICGEA).
The wire-line coring drill rod is easy to vibrate under the influence of gravity in tunnel horizontal hole construction because of its thin wall, the friction between rod and hole wall causes the damage to the rod. The newly developed high strength w
Publikováno v:
Day 3 Fri, August 26, 2016.
At the present, shale gas wells in South China WY area have good gas production, but there are still many producing wells with poor performance. This is because we do not fully understand the shale gas reservoir storage and production mechanism and c