Zobrazeno 1 - 10
of 251
pro vyhledávání: '"Baochang Liu"'
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 5712-5720 (2024)
For multichannel synthetic aperture radar (SAR) ground moving target indication (GMTI) systems, the clutter suppression method based on post-Doppler space time adaptive processing technology is popular due to its excellent performance. However, to co
Externí odkaz:
https://doaj.org/article/f4d8f1037a094810b673698310a757f8
Publikováno v:
Journal of Materials Research and Technology, Vol 27, Iss , Pp 153-167 (2023)
Polycrystalline diamond compact (PDC) cutters, the most widely used cutting tool in oil and gas drilling, often fail very quickly because of excessive wear and poor impact toughness in hard and complex formations. In this study, dense PDC samples dop
Externí odkaz:
https://doaj.org/article/3a974f3fd208408a8bce020237c7dc09
Autor:
Xueqi, Wang, Jianbo, Tu, Wenhao, Dai, Chuang, Zhao, Yue, Zhu, Pinwen, Zhu, Qiang, Tao, Baochang, Liu
Publikováno v:
In Ceramics International 15 May 2024 50(10):17773-17782
Publikováno v:
Journal of Materials Research and Technology, Vol 25, Iss , Pp 2029-2039 (2023)
The weak interfacial strength between Fe-based matrix and diamonds causes diamond particles to fall off prematurely, significantly affecting the cutting efficiency of diamond composites. This work aimed to optimize the interfacial microstructure and
Externí odkaz:
https://doaj.org/article/5ecb50fe5f15453b9c8cbe841b931be1
Publikováno v:
Applied Sciences, Vol 14, Iss 6, p 2319 (2024)
When traversing soft and rugged terrain, a planetary rover is susceptible to slipping and sinking, which impedes its movement. The real-time detection of wheel sinkage in the planetary wheel-on-limb system is crucial for enhancing motion safety and p
Externí odkaz:
https://doaj.org/article/1a253311c2fa4829bed447c0b668a4de
Publikováno v:
Jin'gangshi yu moliao moju gongcheng, Vol 42, Iss 3, Pp 317-324 (2022)
Nano-NbC and nano-WC were added to the WC-bronze based matrix to improve the performance of the matrix of the impregnated diamond bit. The uniform design method, regression analysis and solver were used to obtain the optimal addition. Laboratory dril
Externí odkaz:
https://doaj.org/article/d4571a36e7ce4bc8a99117885c779146
Autor:
Dmitry V. Lysakov, Vyacheslav V. Neskoromnykh, Pavel G. Petenev, Marina S. Popova, Anton Е. Golovchenko, Baochang Liu
Publikováno v:
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 333, Iss 5, Pp 116-125 (2022)
The relevance. Many years of experience in directional drilling has made it possible to identify complex mining and geological conditions in which the use of deflectors leads to decrease in the effectiveness of the curvature and accidents. So, for ex
Externí odkaz:
https://doaj.org/article/bb5c68b7a199406fbc4ccdfddc9a2590
Publikováno v:
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 333, Iss 4, Pp 181-192 (2022)
The relevance. Vibrations of a drill string of any origin, arising while drilling a well, lead to a decrease in the quality of the work performed. The known methods of combating this phenomenon are technically and technologically complicated. When dr
Externí odkaz:
https://doaj.org/article/1c8d6dbc7fdd4a8aaada8b385f7efcc8
Publikováno v:
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 332, Iss 6, Pp 167-177 (2021)
Relevance. The drilling results are influenced by the effectiveness of the rock cutting tool operation at the bottom of the well. The indicators of the mechanical drilling speed, the quality of well construction and sampling are closely related to th
Externí odkaz:
https://doaj.org/article/9ee44d2e598e44eebe3caa9275a46ec4
Autor:
Vyacheslav V. Neskoromnykh, Baochang Liu, Chen Zhaoran, Pavel G. Petenev, Marina S. Popova, Anton E. Golovchenko
Publikováno v:
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 332, Iss 5, Pp 60-69 (2021)
Relevance. Requirements for rock cutting tools are to ensure high mechanical speed, resource, wide range of application and low material costs for its purchase. In other words, the drilling tool must be durable, wear-resistant, and made of relatively
Externí odkaz:
https://doaj.org/article/2fc1d8d3f282410c944483d74cd02719