Aerodynamic Characteristics of High-speed Train Pantographs Based on Jet Flow Control

Autor: S. Huang, B. D. Zhang, Z. W. Li, J. P. Zhao, W. J. Peng, J. R. Lin

Publikováno v: Journal of Applied Fluid Mechanics, Vol 17, Iss 7, Pp 1536-1551 (2024)

The pantograph is a critical instrument that significantly affects the aerodynamics of high-speed trains, posing a considerable challenge to the energy conservation and environmental protection of trains. This study explores the feasibility and effic

Externí odkaz: https://doaj.org/article/a620f2f56b7f4127b88d7f7ecc4092a4

Influence of the Lander Size and Shape on the Ballistic Landing Motion

Autor: X. Y. Zeng, Z. W. Li, T. G. Wen, Y. L. Zhang

Publikováno v: Earth and Space Science, Vol 9, Iss 2, Pp n/a-n/a (2022)

Abstract This article investigates the ballistic landing motion and final distribution of the landers in different sizes or shapes near the small celestial body. Three typical shapes, including cubic, cuboid, and cylindrical, are considered for the l

Externí odkaz: https://doaj.org/article/e7a613fc17c948cabd0a1653149d95cb

Antiferromagnetic correlations in the metallic strongly correlated transition metal oxide LaNiO3

Autor: H. Guo, Z. W. Li, L. Zhao, Z. Hu, C. F. Chang, C.-Y. Kuo, W. Schmidt, A. Piovano, T. W. Pi, O. Sobolev, D. I. Khomskii, L. H. Tjeng, A. C. Komarek

Publikováno v: Nature Communications, Vol 9, Iss 1, Pp 1-7 (2018)

The phase transitions of rare earth nickelates have attracted intensive study as they arise from the complex interplay of charge, spin and lattice degrees of freedom. Here Guo et al. present evidence that LaNiO3 has an unanticipated magnetically orde

Externí odkaz: https://doaj.org/article/d285706cb484414ca0c3eeda28d0d29a

Vegetative impacts upon bedload transport capacity and channel stability for differing alluvial planforms in the Yellow River source zone

Autor: Z. W. Li, G. A. Yu, G. Brierley, Z. Y. Wang

Publikováno v: Hydrology and Earth System Sciences, Vol 20, Iss 7, Pp 3013-3025 (2016)

The influence of vegetation upon bedload transport and channel morphodynamics is examined along a channel stability gradient ranging from meandering to anabranching to anabranching–braided to fully braided planform conditions along trunk and tribut

Externí odkaz: https://doaj.org/article/9654422bbc1f4a1db8b0633e3d4ffa8d

The 2018 failed outburst of H 1743 – 322: Insight-HXMT, NuSTAR, and NICER views

Autor: P J Wang, L D Kong, Y P Chen, S Zhang, S N Zhang, R Soria, L Ji, J L Qu, Y Huang, L Tao, M Y Ge, F J Lu, L Chen, T P Li, Y P Xu, X L Cao, Y Chen, C Z Liu, Q C Bu, C Cai, Z Chang, T X Chen, Y B Chen, W W Cui, Y Y Du, G H Gao, H Gao, Y D Gu, J Guan, C C Guo, D W Han, J Huo, S M Jia, W C Jiang, J Jin, B Li, C K Li, G Li, W Li, X Li, X B Li, X F Li, Z W Li, X H Liang, J Y Liao, B S Liu, H X Liu, H W Liu, X J Liu, X F Lu, Q Luo, T Luo, R C Ma, X Ma, B Meng, Y Nang, J Y Nie, G Ou, X Q Ren, N Sai, L M Song, X Y Song, L Sun, Y Tan, Y L Tuo, C Wang, L J Wang, W S Wang, Y S Wang, X Y Wen, B Y Wu, B B Wu, M Wu, G C Xiao, S Xiao, S L Xiong, R J Yang, S Yang, Yan Ji Yang, Yi Jung Yang, Q B Yi, Q Q Yin, Y You, F Zhang, H M Zhang, J Zhang, P Zhang, W C Zhang, W Zhang, Y F Zhang, Y H Zhang, H S Zhao, X F Zhao, S J Zheng, Y G Zheng, D K Zhou

Publikováno v: Monthly Notices of the Royal Astronomical Society. 512:4541-4555

We studied the 2018 outburst of the black hole transient H 1743 − 322 with a series of Insight-HXMT, NICER, and NuSTAR observations, covering the 1–120 keV band. With our broad-band X-ray spectral modelling, we confirm that the source remained in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8274eef826abbaa57ae568ce1f6c2f65
https://doi.org/10.1093/mnras/stac773