Results 21 to 30 of about 12,133,437 (297)

The Largest Space-Asymmetric-Curved-Single Tower Twisted-Cable-Plane Cable-Stayed Bridge—Tuojiang Bridge of Jinjianren Expressway Phase II Project [PDF]

预应力技术, 2023
The Tuojiang Bridge of Jinjianren Expressway Phase II Project is located in Jianyang City and the Eastern New District of Chengdu, all the section length is 4.3 km with a total construction and installation cost of about 1.74 billion yuan.
Yongxian Wu
doaj   +1 more source

Passivity-based harmonic control through series/parallel damping of an H-bridge rectifier [PDF]

, 2007
Nowadays the H-bridge is one of the preferred solutions to connect DC loads or distributed sources to the single-phase grid. The control aims are: sinusoidal grid current with unity power factor and optimal DC voltage regulation capability.
Liserre, M., Vito G. Monopoli, Martijn M.J. de Vries, Kransse, M. J., Monopoli, V. G., Liserre, M.,, Marco J. Kransse, De Vries, M. M. J., Scherpen, J. M. A., LISERRE, Marco, Scherpen, J. M. A.,, Monopoli, V. G.,, Marco Liserre, Kransse, M. J.,, MONOPOLI, Vito Giuseppe, Jacquelien M.A. Scherpen, De Vries, M. M. J.,   +16 more
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Monitoring Bridge Dynamic Behaviour Using an Instrumented Two Axle Vehicle [PDF]

, 2012
Bridge & Infrastructure Research in Ireland 2010 (BRI 10), Cork, 2-3 September 2010Highway structures such as bridges are subject to continuous degradation primarily due to ageing, loading and environmental factors.
McGetrick, P., O\u27Brien, Eugene J., O'Brien, Eugene J., González, Arturo   +3 more
core   +1 more source

A self-powered H-Bridge joule theory circuit for piezoelectric energy harvesting systems

Power Electronic Devices and Components, 2022
In this paper, investigation of high direct current/voltage (DC) and power gains using H-Bridge joule theory (HBRJT) circuit with an input voltage of alternating current/voltage (AC) is carried out by avoiding higher switching frequency and additional ...
Mahesh Edla, Mikio Deguchi, Yee Yan Lim
doaj   +1 more source

Wind Tunnel Measurements of Surface Shear Stress on an Isolated Dune Downwind a Bridge

Applied Sciences, 2020
As part of a comprehensive environmental assessment of the Dun-Gel railway project located in Dunhuang city, Gansu Province, China, a wind tunnel experiment was proposed to predict surface shear stress changes on a sand dune when a bridge was built ...
Wenbo Wang, Hongchao Dun, Wei He, Ning Huang   +3 more
doaj   +1 more source

Sustainability of bridge maintenance [PDF]

, 2019
Bridge maintenance activities are important to consider within sustainable development due to the cost and environmental impact associated with various maintenance activities. Comparisons have been made between different bridge structural forms, based on
Booth, CA, Tomor, Adrienn, Gouda, Hazem, Balogun, TB, Gouda, H, Lamond, Jessica, Lamond, J, Booth, Colin A., Balogun, Teslim B., Tomor, A   +9 more
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Reduction of DC Capacitor Size in Three-Phase Input/Single-Phase Output Power Cells of Multi-Cell Converters through Resonant and Predictive Control: A Characterization of Its Impact on the Operating Region

Mathematics, 2023
Cascaded H-bridge drives require using a significant-size capacitor on each cell to deal with the oscillatory power generated by the H-bridge inverter in the DC-link.
Roberto O. Ramírez, Carlos R. Baier, Felipe Villarroel, Eduardo Espinosa, Mauricio Arevalo, Jose R. Espinoza   +5 more
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The Effect of Lane Changing on Long-Span Highway Bridge Traffic Loading [PDF]

, 2012
Bridge Maintenance, Safety, Management, Resilience & Sustainability, Sixth International IABMAS Conference, Stresa, Lake Maggiore, Italy, 8-12 July 2012Maximum loading on long-span bridges typically occurs in congested traffic conditions.
Carey, Colm, B Enright, E OBrien, O\u27Brien, Eugene J., C Carey, O'Brien, Eugene J., Enright, Bernard, C Caprani, Caprani, Colin C.   +8 more
core   +2 more sources

Analysis of Maximum Load Unbalancing Limits of Cascaded H-Bridge Rectifier Under Unity Power Factor

IEEE Access, 2019
In a cascaded H-bridge rectifier (CHBR), the dc capacitor voltages need to be controlled to balance by the voltage balance controller when the loads are unbalanced.
Zhixuan Gao, Cong Wang, Junqing Fu, Bangbang He, Chen Feng, Qiwei Lu   +5 more
doaj   +1 more source

Vibration Response Analysis of Simply Supported Box Girder Bridge-Maglev Train in Accelerated Test of Changsha Maglev Express

Advances in Materials Science and Engineering, 2020
In order to study and analyze the vibration response of simply supported box girder bridge-maglev vehicle, a 25 m span simply supported box girder bridge of Changsha Maglev Express was selected as the research object.
Xiao Liang, Tianyong Jiang, Yue Hong, Jiabing Zhang, Mai Jiang, Zeyin Wang   +5 more
doaj   +1 more source