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7篇 您的检索式:作者名="Runmin Xu"
    题名 作者 年代 出处 被引量
1Estimation of Incident-Induced Congestion on Signalized Arteries Using Traffic Sensor Data显示文摘This paper describes how to derive quantitative information about the effect of traffic incidents on urban traffic flow from the raw measurements detected by sectional loop sensors. The two critical parameters of the travel delay and queue length, which reflect the temporal and spatial properties of incident-induced congestion, cannot be directly determined from commonly used loop sensors. The modified queuing diagram is used here to quantify incident-induced queues and travel delays on signalized arteries using sensor data from the targeted and upstream links. The method is tested using data generated by the VISSIM simulation model, with results indicating its efficiency and accuracy with an average relative travel delay error of 18.67% for all samples which falls to 8.07% for high volume and very high volume conditions.Lin Hou Zuo Zhang Binghao Lu Runmin Xu Yi Zhang 2012Tsinghua Science and Technology2012,17,3:2
2Exogenous hydrogen sulfide protects H9c2 cardiac cells against highglucose-induced injury by inhibiting the activities of the p38 MAPK and ERK1/2pathways显示文摘Wenming Xu Wen Wu Jingfu Chen Runmin Guo Jiancong Lin Xinxue Liao Jianqiang Feng 2013International Journal of Molecular Medicine2013,,4:2
3Signal control optimization for automated vehicles at isolated signalized intersections显示文摘Yin Shengchao Xu Runmin Zhang Yi 2012Journal of Transportation Systems Engineering and Information Technology2012,12,2:1
4Increased expression of heat shock protein 90 under chemical hypoxicconditions protects cardiomyocytes against injury induced by serum and glucosedeprivation显示文摘Keng Wu Wenming Xu Qiong You Runmin Guo Jianqiang Feng Changran Zhang Wen Wu 2012International Journal of Molecular Medicine2012,,5:1
5Hydrogen sulfide attenuates doxorubicin-induced cardiotoxicity by inhibitionof the p38 MAPK pathway in H9c2 cells显示文摘Runmin Guo Jiancong Lin Wenming Xu Ning Shen Liqiu Mo Changran Zhang Jianqiang Feng 2013International Journal of Molecular Medicine2013,,3:1
6Shock-Wave/Rail-Fasteners Interaction for Two Rocket Sleds in the Supersonic Flow Regime显示文摘Rocket sleds belong to a category of large-scale test platforms running on the ground.The applications can be found in many fields,such as aerospace engineering,conventional weapons,and civil high-tech products.In the present work,shock-wave/rail-fasteners interaction is investigated numerically when the rocket sled is in supersonic flow conditions.Two typical rocket sled models are considered,i.e.,an anti-D shaped version of the rocket sled and an axisymmetric slender-body variant.The dynamics for Mach number 2 have been simulated in the framework of a dynamic mesh method.The emerging shock waves can be categorized as head-shock,tailing-shock and reflected-shock.An unsteady large-scale vortex and related shock dynamics have been found for the anti-D shaped rocket sled.However,a quasi-steady flow state exists for the slender-body shaped rocket sled.It indicates that the axisymmetric geometry is more suitable for the effective production of rocket sleds.With the help of power spectral density analysis,we have also determined the characteristic frequencies related to shock-wave/rail-fasteners interaction.Furthermore,a harmonic phenomenon has been revealed,which is intimately related to a shock wave reflection mechanism.Bin Wang Jing Zheng Yuanyuan Yu Runmin Lv Changyue Xu 2020Fluid Dynamics & Materials Processing2020,16,4:0
7Coiled Polymer Artificial Muscles Having Dual-Mode Actuation with Large Stress Generation显示文摘Coiled polymer artificial muscles with both large tensile stroke and giant force generation are needed for practical applications in robotics,soft exosuits,and prosthesis.However,most polymer yarn artificial muscles cannot generate a large force or stress.Here,we report an inexpensive Twisted and Coiled Polymer artificial muscle(TCP)that performs both large isobaric and isometric contractions.This TCP can generate a tensile stroke of 20.1%and a specific work capacity of up to 1.3 kJ kg^(−1) during temperature changes from 20 to 180℃.Moreover,the nylon yarn artificial muscle produced a reversible output stress of 28.4 MPa,which is 100 times larger than human skeletal muscle.A robot arm and a simple gripper were made to demonstrate the isobaric actuation and isometric actuation of our TCP muscle,repectivley.Thus,the polymer artificial muscles with dual-mode actuation show potential applications in the field of robotics,grippers,and exoskeletons and so on.Xinghao Hu Runmin Liu Kai Zhao Yilun Wang Xianfu Bao Lin Xu Guanggui Cheng Jianning Ding 2023Journal of Bionic Engineering2023,20,4:0
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