Zobrazeno 1 - 10
of 757
pro vyhledávání: '"Low damage"'
Publikováno v:
Meikuang Anquan, Vol 55, Iss 9, Pp 71-77 (2024)
An evaluation of low damage guar gum fracturing fluid system based on deep coalbed methane reservoir stimulation was carried out, its on-site application research was conducted. The results indicate that the gel breaking time decreases with increasin
Externí odkaz:
https://doaj.org/article/e56491d83e7a4e7e8558ffec3cf52c9e
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-18 (2024)
Abstract The development of deep high-temperature oil and gas reservoirs gives rise to a rise in reservoir temperature along with the depth of the oil reservoir, thereby imposing higher requirements on the heat resistance of fracturing fluid. Guar gu
Externí odkaz:
https://doaj.org/article/fb526f993c6e4c46b3cfaf9fa72796d4
Publikováno v:
In Journal of Building Engineering 15 October 2024 95
Publikováno v:
Nanomaterials, Vol 14, Iss 23, p 1866 (2024)
A green chemical shear-thickening polishing (GC-STP) method was studied to improve the surface precision and processing efficiency of monocrystalline silicon. A novel green shear-thickening polishing slurry composed of silica nanoparticles, alumina a
Externí odkaz:
https://doaj.org/article/b1ba3550060f48e48829f626475c37b3
Publikováno v:
High Temperature Materials and Processes, Vol 43, Iss 1, Pp pp. 191152-191162 (2024)
The use of self-sharpening cutters can increase crop survival and regrowth by reducing the extent of stem damage incurred during the mowing stage and reducing the healing time at the harvest site. In this study, a self-sharpening cutter was prepared
Externí odkaz:
https://doaj.org/article/5077eacce4674f5592d9d45d956766ca
Publikováno v:
Journal of Agricultural Engineering (2024)
Low degree of transplanting automation will affect production efficiency and planting quality in vegetable cultivation. A new seedling pick-up device was designed and constructed to reduce direct grasping damages to seedlings and improve transplantin
Externí odkaz:
https://doaj.org/article/62a43d5ddd1047f58c2adc396e1abb55
Publikováno v:
Micromachines, Vol 15, Iss 9, p 1094 (2024)
To enhance the performance of micro-hemispherical gyroscopes, achieving low-damage and high-surface-quality trimming is essential. This enables greater stability and reliability for the gyroscopes. Current methods for reducing frequency split often c
Externí odkaz:
https://doaj.org/article/b6ed86124bcb4eeb861d138c32c85dee
Publikováno v:
In Journal of Building Engineering 1 April 2025 99
Publikováno v:
Buildings, Vol 14, Iss 6, p 1590 (2024)
To achieve rapid post-earthquake repair of self-centering ribbed floor flat-beam frame structures, a ductile hybrid joint consisting of dog-bone-shaped, weakened, energy-dissipating steel bars connected to the upper and lower column sections through
Externí odkaz:
https://doaj.org/article/d1a27710b39248df99ac365f880db603
Autor:
Kun Luo, Xuechen Zhang, Chengmao Cao, Zhengmin Wu, Kuan Qin, Chuan Wang, Weiqing Li, Le Chen, Wei Chen
Publikováno v:
Frontiers in Plant Science, Vol 14 (2023)
To address the current problems of large positioning error, low picking efficiency, and high cost of tea shoot picking, a continuous and precise harvesting scheme for tea shoots based on a two-dimensional (2D) perspective is designed in this study. A
Externí odkaz:
https://doaj.org/article/512587a558ef4c678a1d4a47d514d1aa