Results 11 to 20 of about 5,123 (248)
Suppression of Railway Catenary Galloping Based on Structural Parameters’ Optimization [PDF]
SensorsRailway catenary galloping, induced by aerodynamic instability, poses a significant threat by disrupting the electric current connection through sliding contact with the contact wire.
Yuhui Liu +3 more
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The Effect of Fertigation on Clogging of Emitters in Drip Irrigation System [PDF]
علوم و مهندسی آبیاری, 2015 One of the potential advantages of drip irrigation is allowing the use of fertilizer and poison with irrigation water. In this study, the effect of fertilizers on clogging dripper and drip irrigation system performance has been investigated.
Farideh Ansari samani +1 more
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Large-Scale Laboratory Experiments on Mussel Dropper Lines in Ocean Surface Waves
Journal of Marine Science and Engineering, 2020 The rapid growth of marine aquaculture around the world accentuates issues of sustainability and environmental impacts of large-scale farming systems. One potential mitigation strategy is to relocate to more energetic offshore locations.
Rebekka Gieschen +5 more
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BMC Psychology, 2021 Background Liquid medication dosing errors (LMDE) made by caregivers affect treatment in children, but this is not a well-studied topic in many low-and middle-income countries including in India.
Pawan Patidar +2 more
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Journal of the American Medical Association, 1908 The chloroform dropper here illustrated has given me much satisfaction. It is a metal container, non-leakable and unbreakable. It is always ready for use by simply turning the screw A slightly to the right. The flow of chloroform or ether can be regulated in this manner so as to yield from two drops per minute to a steady flow, if so desired. The cap B
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YOLOv5s-D: A Railway Catenary Dropper State Identification and Small Defect Detection Model
Applied Sciences, 2023 High-speed railway catenaries are vital components in railway traction power supply systems. To ensure stable contact between the pantograph and the catenary, droppers are positioned between the messenger wire and contact line. The failure of one or more
Ziyi Li +5 more
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MachinesThe dropper load directly influences the fatigue mechanism of the high-speed catenary system. A proper dropper model for a pantograph–catenary system can be used to accurately and efficiently investigate this phenomenon.
Like Pan +5 more
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Research on time–frequency characteristics of contact force based on wavelet transform
IET Electrical Systems in Transportation, 2022 When a train runs at high speed, affected by the structural characteristics of the catenary, the contact force changes periodically with span and dropper spacing.
Fang He, Jian Zhang
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Machine Vision Based Monitoring of Breakage and Slack Faultfor High Speed Railway Dropper
Kongzhi Yu Xinxi Jishu, 2021 Dropper’s breakage and slack threaten the stability of high-speed railway power supply system and reduce system safety. Disappointingly, monitoring droppers and guiding maintenance are performed by manual inspection, and it has the problems of low ...
LIU Shiwang, HU Yunqing, LIN Jun
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