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Yang, Z. (author), Boogaard, M.A. (author), Chen, Rong (author), Dollevoet, R.P.B.J. (author), Li, Z. (author)This paper presents an analysis of the transient contact solutions of wheel-rail frictional rolling impacts calculated by an explicit finite element model of the wheel-insulated rail joint (IRJ) dynamic interaction. The ability of the model to simulate the dynamic behavior of an IRJ has been validated against a comprehensive field measurement in...journal article 2018
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Zheng, Fangfang (author), Li, Jie (author), van Zuylen, H.J. (author), Liu, Xiaobo (author), Yang, Hongtai (author)The decision making of travelers for route choice and departure time choice depends on the expected travel time and its reliability. A common understanding of reliability is that it is related to several statistical properties of the travel time distribution, especially to the standard deviation of the travel time and also to the skewness....journal article 2017
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Tang, Linkai (author), He, Yan Bing (author), Wang, Chao (author), Wang, Shuan (author), Wagemaker, M. (author), Li, Baohua (author), Yang, Quan Hong (author), Kang, Feiyu (author)Nanosized Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> (LTO) materials enabling high rate performance suffer from a large specific surface area and low tap density lowering the cycle life and practical energy density. Microsized LTO materials have high density which generally compromises their rate capability. Aiming at combining the favorable...journal article 2017
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Li, Fankang (author), Feng, Hao (author), Thaler, Alexander N. (author), Parnell, S.R. (author), Hamilton, William A. (author), Crow, Lowell (author), Yang, Wencao (author), Jones, Amy B. (author), Bai, Hongyu (author), Matsuda, Masaaki (author), Baxter, David V. (author), Keller, Thomas (author), Fernandez-Baca, Jaime A. (author), Pynn, Roger (author)The neutron Larmor diffraction technique has been implemented using superconducting magnetic Wollaston prisms in both single-arm and double-arm configurations. Successful measurements of the coefficient of thermal expansion of a single-crystal copper sample demonstrates that the method works as expected. The experiment involves a new method of...journal article 2017
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Wang, Xu Ping (author), Zhou, Peng Fei (author), Li, Zhi Gang (author), Yang, Bo (author), Hollmann, F. (author), Wang, Yong Hua (author)A Ser105Ala mutant of the lipase B from Candida antarctica enables 'perhydrolase-only' reactions. At the example of the chemoenzymatic Baeyer-Villiger oxidation of cyclohexanone, we demonstrate that with this mutant selective oxidation can be achieved in deep eutectic solvent while essentially eliminating the undesired hydrolysis reaction of...journal article 2017
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Yang, L. (author), Li, Pengdeng (author), Yang, Xiaofan (author), Tang, Yuan Yan (author)Advanced persistent threats (APTs) pose a grave threat to cyberspace, because they deactivate all the conventional cyber defense mechanisms. This paper addresses the issue of evaluating the security of the cyber networks under APTs. For this purpose, a dynamic model capturing the APT-based cyber-attack-defense processes is proposed....journal article 2017
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Lu, Dan (author), Yang, Shunkun (author), Zhang, Jiaquan (author), Wang, H. (author), Li, Daqing (author)Epidemic propagation on complex networks has been widely investigated, mostly with invariant parameters. However, the process of epidemic propagation is not always constant. Epidemics can be affected by various perturbations and may bounce back to its original state, which is considered resilient. Here, we study the resilience of epidemics on...journal article 2017
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Han, Haoya (author), Li, Li (author), Tian, Yuchuan (author), Wang, Yunwei (author), Ye, Zhishuang (author), Yang, Qingsong (author), Wang, Y. (author), Von Klitzing, Regine (author), Guo, Xuhong (author)Hollow silica nanoparticles were prepared through generating a silica layer in spherical polyelectrolyte nanogels (SPN), which consisted of a solid core of polystyrene (PS) and a shell of crosslinked poly(acrylic acid) (PAA), followed by removing the PS core via solvent dissolution. Small angle X-ray scattering (SAXS) in combination with TEM...journal article 2017
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Yang, Z. (author), Li, Z. (author), Dollevoet, R.P.B.J. (author)By considering real wheel and track geometry and structures, as well as their coupled interaction, an explicit finite element method is applied to simulate the transition of wheel–rail rolling from single-point tread contact to two-point tread-flange contact. The evolutions of the contact position, stress magnitude and direction, adhesion–slip...journal article 2016
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Huang, F. (author), Xia, Z. (author), Li, F. (author), Guo, L. (author), Yang, F. (author)Hydrological changes of the Irtysh River were analyzed concerning the changes of annual runoff and its distribution features within a year measured by coefficient of variation and concentration degree. Abrupt changes were detected by the heuristic segmentation method. Possible causes of the hydrological changes were investigated considering...journal article 2012
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- Liu, X.G. (author), Or, S.W. (author), Li, B. (author), Ou, Z.Q. (author), Zhang, L. (author), Zhamg, Q. (author), Geng, D.Y. (author), Yang, F. (author), Li, D. (author), Brück, E.H. (author), Zhang, Z.D. (author) journal article 2010
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- Zeng, L.J. (author), Ma, C. (author), Yang, H.X. (author), Xiao, R.J. (author), Li, J.Q. (author), Jansen, J. (author) journal article 2008