Otolith annulus validation and population dynamics of dark sleeper Odontobutis potamophila: insights for sustainable fisheries management by Miao Xiang, Miao Xiang, Haoran Liu, Haoran Liu, Haoran Liu, Bo Li, Hongxi Guo, Chuankun Zhu, Man Wang, Man Wang, Jie Wang, Jie Wang, Songguang Xie, Songguang Xie, Lei Zhang, Lei Zhang

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Fatigue life evaluation of aged rails focusing on the state of hanging sleepers and rail-head surface irregularities that affect rail stress by Mitsuru HOSODA, Nobutaka TAKAHASHI, Tadashi DESHIMARU

“…In this study, we focused on hanging sleepers and rail-head surface irregularities, which are considered to affect the fatigue life of aged rails, and statistically analyzed their occurrence on commercial lines. …”
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Acute Effects of Dry Needling on Myofascial Trigger Points in the Triceps Surae of Ballet Dancers: A Pilot Randomized Controlled Trial by Jennifer A Janowski, Deanna M L Phelan-Smith, Maria N Kroat Brady, Kelsey L Michels, Alexandra H Timm, Nicole M Boucher, Kedron D Casteen, David Village, Mark D Sleeper

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Acceleration Frequency Characteristics of the Freight-Train-Induced Vibration of the Beijing-Harbin Railway Subgrade by Yingying Zhao, Xianzhang Ling, Ziyu Wang, Weiming Gong, Guoyu Li

“…The vibration acceleration during a freezing period was monitored in the Beijing-Harbin railway subgrade, and its frequency characteristics were studied. The results show the following. (1) The vibration acceleration frequency of the railway subgrade was divided into three main bands: the first frequency band is caused by the vehicle wheelbase, the second frequency band is caused by the sleeper spacing, and the third frequency band is mainly affected by the track irregularity spectrum and site structure. (2) The fitted dominant frequency, as can be seen from the monitored results, is in good agreement with the calculated value from the vibration frequency calculation formulas. (3) From the monitoring, it can be seen that train type, traveling speed, and train formation have a significant influence on the dominant frequencies of the first and second bands. …”
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