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| 1 | Influence of aerodynamic configuration of a streamline box girder on bridge flutter and vortex-induced vibration显示文摘Streamline box girders are widely applied in the design and construction of long-span bridges all over the world.In order to study the influence of modifications of aerodynamic configuration and accessory components on flutter and vortex-induced vibration(VIV),more than 60 cases were tested through a 1?50 scale section model.The test results indicates that the aerodynamic configuration and accessory components of streamline box girders can signifi-cantly affect the wind-induced vibration of bridge,which is in good agreement with the experience of past researchers.From the tests carried out,it is observed that if the horizontal angle of the inclined web of the streamline box girder is below 16°,the critical flutter wind speed of bridge will increase remarkably,and the VIV will diminish.The test results also show that the 15° inclined web can restrain the formation of vortex near the tail,and consequently improve the performance of aerodynamic stability of long-span bridges.Finally,a new streamline box girder with 15° inclined web was presented and strongly recommended in the aerodynamic configuration design of long-span bridges. | Qi WANG Haili LIAO Mingshui LI Cunming MA | 2011 | Journal of Modern Transportation2011，19，4： | 7 |
| 2 | Research on Comprehensive Control of Power Quality of Port Distribution Network Considering Large-Scale Access of Shore Power Load显示文摘In view of the problem of power quality degradation of port distribution network after the large-scale application of shore power load,a method of power quality management of port distribution network is proposed.Based on the objective function of the best power quality management effect and the smallest investment cost of the management device,the optimization model of power quality management in the distribution network after the large-scale application of large-capacity shore power is constructed.Based on the balance between the economic demand of distribution network resources optimization and power quality management capability,the power quality of distribution network is considered comprehensively.The proposed optimization algorithm for power quality management based on Matlab and OpenDSS is proposed and analyzed for port distribution networks.The simulation results show that the proposed optimizationmethod can maximize the power qualitymanagement capability of the port distribution network,and the proposed optimization algorithm has good convergence and global optimization finding capability. | Yuqian Qi Mingshui Li Yu Lu Baitong Li | 2023 | Energy Engineering2023，120，5： | 1 |
| 3 | Numerical Simulation of Natural Wind Field 显示文摘 | Li Mingshui He Dexi | 1999 | ACTA AERODYNAM1CA SINICA1999，17，1： | 1 |
| 4 | Numerical simulation of natural wind field 显示文摘 | Li Mingshui He Dexin | 1999 | Acta Aerodynamica Sinica1999，17，： | 1 |
| 5 | Division of“layer exploration unit”and high-efficiency exploration in mature exploration area显示文摘To realize high-efficiency and sustainable exploration of the Jiyang depression at the stage of high exploration degree, a hydrocarbon accumulation-geological evaluation method is developed on the basis of current geologic knowledge and extent of fine exploration. The concept of 'layer exploration unit' is proposed in the study, and it is defined as an exploration geological unit that has a relatively complete and unified tectonic system, sedimentary system and hydrocarbon migration & accumulation system in a tectonic layer or tectonic sublayer within a fault basin. Then, an approach to dividing and evaluating the 'layer exploration unit' is developed. With this approach, the Jiyang depression is divided into 305 layer exploration units, thus helping realize precise and stereoscopic geological understanding and exploration deployment. Fine splitting of remaining resources and benefit evaluation of exploration targets are conducted by 'layer exploration units'. As a result, 66 efficient 'layer exploration units' in four major areas(i.e. Paleogene upper Es4-Dongying Formation, Neogene Minghuazhen Formation-Guantao Formation, Paleozoic buried-hill, and Paleogene Kongdian Formation-lower Es4) are determined as the targets for obtaining more reserves and breakthroughs in the short and medium term. | SONG Mingshui WANG Yongshi LI Youqiang | 2018 | Petroleum Exploration and Development2018，45，3： | 0 |
| 6 | Remote sensing of subtropical tree diversity:The underappreciated roles of the practical definition of forest canopy and phenological variation显示文摘Tree species diversity is vital for maintaining ecosystem functions,yet our ability to map the distribution of tree diversity is limited due to difficulties in traditional field-based approaches.Recent developments in spaceborne remote sensing provide unprecedented opportunities to map and monitor tree diversity more efficiently.Here we built partial least squares regression models using the multispectral surface reflectance acquired by Sentinel-2 satellites and the inventory data from 74 subtropical forest plots to predict canopy tree diversity in a national natural reserve in eastern China.In particular,we evaluated the underappreciated roles of the practical definition of forest canopy and phenological variation in predicting tree diversity by testing three different definitions of canopy trees and comparing models built using satellite imagery of different seasons.Our best models explained 42%–63%variations in observed diversities in cross-validation tests,with higher explanation power for diversity indices that are more sensitive to abundant species.The models built using imageries from early spring and late autumn showed consistently better fits than those built using data from other seasons,highlighting the significant role of transitional phenology in remotely sensing plant diversity.Our results suggested that the cumulative diameter(60%–80%)of the biggest trees is a better way to define the canopy layer than using the subjective fixeddiameter-threshold(5–12 cm)or the cumulative basal area(90%–95%)of the biggest trees.Remarkably,these approaches resulted in contrasting diversity maps that call attention to canopy structure in remote sensing of tree diversity.This study demonstrates the potential of mapping and monitoring tree diversity using the Sentinal-2 data in species-rich forests. | Yongchao Liu Ruyun Zhang Chen-Feng Lin Zhaochen Zhang Ran Zhang Kankan Shang Mingshui Zhao Jingyue Huang Xiaoning Wang You Li Yulin Zeng Yun-Peng Zhao Jian Zhang Dingliang Xing | 2023 | Forest Ecosystems2023，10，3： | 0 |
| 7 | Extreme value of wind-excited response considering influence of bandwidth显示文摘This paper addresses the peak factors of wind-excited responses including alongwind, acrosswind tall building responses and vortex-induced vibration considering the bandwidth parameter. The influence of bandwidth parameter on the peak factor is investigated using advanced upcrossing theory taking the bandwidth influence into account. Results show that Davenport's formula without consideration of bandwidth parameter servers well in general. However, the advanced upcrossing theory leads to a better prediction of the peak factor of wind-induced response of very lightly damped buildings. | Guoqing Huang Xinzhong Chen Mingshui Li Liuliu Peng | 2013 | Journal of Modern Transportation2013，21，2： | 0 |
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