Zobrazeno 1 - 10
of 15 259
pro vyhledávání: '"MA Jian"'
Publikováno v:
Cailiao gongcheng, Vol 51, Iss 9, Pp 176-182 (2023)
Optimizing insulation technique plays a vital role in developing high performance magnetic powder core. Uniform dense titanium dioxide insulation layer was successfully coated on atomized Fe-Si-Al powder through hydrolysis of tetrabutyl titanate and
Externí odkaz:
https://doaj.org/article/c25f77cf063e4c8ab2def66e595ea908
Publikováno v:
Open Astronomy, Vol 32, Iss 1, Pp 319-363 (2023)
In view of the future development trend of ocean altimetry satellites, the design idea of Ka/C dual frequency combination system is proposed, that is, the mode of using an altimeter antenna to contain Ka and C frequencies (35.7 and 5.3 GHz, respectiv
Externí odkaz:
https://doaj.org/article/25f2b40a59f44889ad232dbc6cbc0abe
Publikováno v:
Biodiversity Data Journal, Vol 11, Iss , Pp 1-35 (2023)
Yungui Plateau is rich in fungal diversity. Hyphomycetes, growing on submerged wood, can promote the degradation of organisms and the reuse of rotten wood energy. During an investigation of hyphomycetes in this region, 19 species of dematiaceous hyph
Externí odkaz:
https://doaj.org/article/fa2171f480f44603b6e3708dc64675fd
Publikováno v:
IEEE Access, Vol 11, Pp 63947-63957 (2023)
This article proposes a resource optimization strategy for the production-consumption system of a distribution network, which is based on both resilience and economic efficiency of electrical networks in the face of typhoon impacts. Firstly, based on
Externí odkaz:
https://doaj.org/article/dacccf1cbc10414fac1af993daf28537
Autor:
Chen Jilin, Feng Guanghong, Zheng Yaxu, Ma Jian, Lin Peng, Wang Ningtao, Ma Honglei, Zheng Jian
Publikováno v:
High Temperature Materials and Processes, Vol 41, Iss 1, Pp 531-541 (2022)
Herein, the surface decarburization and oxidation characteristics of Cr–Mo cold heading steel are investigated via optical microscopy, scanning electron microscopy, and electron backscatter diffraction under different temperatures. Furthermore, the
Externí odkaz:
https://doaj.org/article/7fd6594a1105476bae5b8fb144a17a4e
Autor:
YAO Yun-qi, ZENG Run-qiang, MA Jian-hua, MENG Xiang-pei, WANG Hong, ZHANG Zong-lin, MENG Xing-min
Publikováno v:
Rock and Soil Mechanics, Vol 43, Iss 8, Pp 2305-2316 (2022)
Rainfall-induced landslides are the most common geological hazard in the world, and the effect of preferential flow infiltration has been neglected for a long time regarding the slope reliability analysis under rainfall infiltration. The preferential
Externí odkaz:
https://doaj.org/article/cd50db6367f249acbe3b2a714a8ab78f
Publikováno v:
Meikuang Anquan, Vol 53, Iss 4, Pp 135-139 (2022)
In order to solve the difficult problem of on-site upgrading of sensors in coal mine safety monitoring system, ISP technology and IAP technology are compared and analyzed. It is concluded that IAP technology is more suitable for on-line upgrading of
Externí odkaz:
https://doaj.org/article/ab97beafd0164680a4440ce0cd0640f0
Autor:
MA Jian-hong, ZHANG Tong
Publikováno v:
Jisuanji kexue, Vol 49, Iss 1, Pp 159-165 (2022)
Enterprises often encounter various engineering problems in the production line,which need the help of experts to be effectively solved.The current academic recommendation system could not deeply explore the underlying knowledge connection between th
Externí odkaz:
https://doaj.org/article/168354006d5b45d9825ac39d2fac1988
Publikováno v:
Yankuang ceshi, Vol 40, Iss 6, Pp 930-943 (2021)
BACKGROUND As important industrial chemicals, intermediates and organic solvents, volatile organic compounds (VOCs) have increased the impact on the environment and human health with the development of human industry and agriculture. As a densely pop
Externí odkaz:
https://doaj.org/article/510dd7ac735e47faab4c8c8bee9a1024
Publikováno v:
Yankuang ceshi, Vol 40, Iss 6, Pp 944-953 (2021)
BACKGROUND At present, the supervision of antibiotic abuse and its research is being strengthened. In recent years, antibiotics have been detected in varying degrees in water in central China. This reinforces the concern of the pollution of antibioti
Externí odkaz:
https://doaj.org/article/8840f41f1c024f6781a563b0795b2d2b