Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Qing-Bo Yu"'
Publikováno v:
Defence Technology, Vol 24, Iss , Pp 190-202 (2023)
In this paper, the penetration mechanism of reactive jet with non-uniform density distribution is studied. The simulations show that the density deficit occurs in the whole reactive jet, and the density increases from the jet tip to tail. The density
Externí odkaz:
https://doaj.org/article/fa32a5112f554ab7a3068e2d08766ce4
Publikováno v:
Defence Technology, Vol 18, Iss 9, Pp 1578-1588 (2022)
In this paper, the reaction characteristic and its application in shaped charge warhead of a novel reactive material, which introduced copper (Cu) and plumbum (Pb) into traditional polytetrafluoroethylene/aluminum (PTFE/Al), are studied. The thermal
Externí odkaz:
https://doaj.org/article/9beea4dd1b5345e38d71b244bc50d277
Publikováno v:
Defence Technology, Vol 18, Iss 6, Pp 952-962 (2022)
Penetration and internal blast behavior of reactive liner enhanced shaped charge against concrete space were investigated through experiments and simulations. The volume of the enclosed concrete space is about 15 m3. The reactive liner enhanced shape
Externí odkaz:
https://doaj.org/article/4968cf48e8e146d696f5cee654e3f20c
Publikováno v:
Defence Technology, Vol 18, Iss 5, Pp 723-734 (2022)
Ballistic impact and sealed chamber tests were performed on the steel-encased reactive material projectile (SERMP) to understand its behind-plate overpressure effect when impacting the thin aluminum plates. The reactive material encased with a 1.5 mm
Externí odkaz:
https://doaj.org/article/9e27eec3253c41fd88639e5cd0cf2efe
Publikováno v:
Defence Technology, Vol 17, Iss 2, Pp 393-404 (2021)
Chain damage is a new phenomenon that occurs when a reactive jet impacts and penetrates multi-spaced plates. The reactive jet produces mechanical perforations on the spaced plates by its kinetic energy (KE), and then results in unusual chain rupturin
Externí odkaz:
https://doaj.org/article/387efcfe0aac44d1bbab1ec68894f9c5
Publikováno v:
Defence Technology, Vol 17, Iss 1, Pp 56-63 (2021)
Force chains based mesoscale simulation is conducted to investigate the response behavior of aluminum-polytetrafluoroethylene (Al-PTFE) granular composites under a low-velocity impact. A two-dimensional model followed the randomly normal distribution
Externí odkaz:
https://doaj.org/article/3629c11c34fe406eba9c2f5761c69c0f
Autor:
Zi-Yuan Wang, Wan-Tong Qu, Tong Mei, Nan Zhang, Nai-Ying Yang, Xiao-Feng Xu, Hai-Bo Xiong, Zhong-Nan Yang, Qing-Bo Yu
Publikováno v:
Frontiers in Plant Science, Vol 13 (2022)
AtRsmD was recently demonstrated to be a chloroplast 16S rRNA methyltransferase (MTase) for the m2G915 modification in Arabidopsis. Here, its function of AtRsmD for chloroplast development and photosynthesis was further analyzed. The AtRsmD gene is h
Externí odkaz:
https://doaj.org/article/f747db3b13904df39516111e117c8d47
Publikováno v:
Defence Technology, Vol 16, Iss 3, Pp 720-730 (2020)
In this research, the effect of the sintering and cooling process on geometry distortion and mechanical properties of PTFE/Al reactive material is investigated. Six particularly selected sintering temperatures, three different cooling modes (annealin
Externí odkaz:
https://doaj.org/article/386f12a0003746ebbcc281f04eb07641
Publikováno v:
Defence Technology, Vol 15, Iss 6, Pp 912-922 (2019)
Impact experiments of large-caliber PELE with various inner-outer diameter ratio perforating RHA plate at low velocity were performed. Experimental results showed the size of perforated holes on plate, average diameter of damage area on witness plate
Externí odkaz:
https://doaj.org/article/9879ec5884554e14af11e4be839cf476
Publikováno v:
Defence Technology, Vol 15, Iss 4, Pp 495-505 (2019)
Wave shaper effect on formation behavior and penetration performance of reactive liner shaped charge (RLSC) are investigated by experiments and simulations. The reactive materials liner with a density of 2.3 g/cm3 is fabricated by cold pressing at a
Externí odkaz:
https://doaj.org/article/d76a0e4c6eea412c921074f216bbcbf8