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Field survey and analysis on near-fault severely damaged high-speed railway bridge in 2022 M6.9 Menyuan earthquake

Earthquake Engineering and Engineering Vibration 2024年第4期23卷 1043-1055页

作者： Lin Xuchuan liu fuxiang Shan Wenchen Key Laboratory of Earthquake Engineering and Engineering Vibration Institute of Engineering MechanicsChina Earthquake AdministrationHarbin 150080China Key Laboratory of Earthquake Disaster Mitigation Ministry of Emergency ManagementHarbin 150080China Institute of Smart City and Intelligent Transportation Southwest Jiaotong UniversityChengdu610000China

The 2022 M6.9 Menyuan earthquake caused severe damage to a high-speed railway bridge,which was designed for high-speed trains running at speeds of above 250 km/h and is located right next to the *** of this type have been widely used for rapidly constructing the high-speed railway network,but few bridges have been tested by near-fault devastating *** potential severe impact of the earthquake on the high-speed railway is not only the safety of the infrastructure,trains and passengers,but also economic loss due to interrupted railway ***,a field survey was carried out immediately after the earthquake to collect time-sensitive *** damage to the bridge was carefully investigated,and quantitative analyses were conducted to better understand the mechanism of the bridge *** was found that seismic action perpendicular to the bridge’s longitudinal direction caused severe damage to the girders and rails,while none of the piers showed obvious deformation or *** maximum values of transverse displacement,out-of-plane rotation and twisting angle of girders reached 212.6 cm,3.1 degrees and 19.9 degrees,respectively,causing severe damage to the bearing supports and anti-seismic retaining *** observations provide a basis for improving the seismic design of high-speed railway bridges located in near-fault areas.

关键词： Menyuan earthquake field survey high-speed railway bridge near fault seismic damage

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A New DGM(1,1)Model with a Grey Parameter and Its Application

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Journal of Systems Science and Information 2022年第3期10卷 297-308页

作者： Xin ZENG Jun liu fuxiang liu Hongmei liu School of Science China Three Gorges UniversityYichang 443002China Three Gorges Mathematical Research Center Yichang 443002China

In the DGM(1, 1) model modeling process, the influencing factors are uncertain. But the solution of DGM(1, 1) model with uncertain information is unique, which conflicts with the nonuniqueness principle of solution in grey theory. In view of this situation, this paper makes an in-depth analysis of the meaning of grey action quantity β_(2) in DGM(1, 1) model and regards β_(2) as an interval grey number. The maximum possibility whitenization value is given to estimate the kernel of grey number,and the typical possibility function is constructed to describe the possibility of grey number taking different values. A new DGM(1, 1) model with a grey parameter is then proposed, whose simulation results are interval grey numbers. The proposed model is compatible with the DGM(1, 1) model in model structure and simulation results. Finally, the practical example results show the applicability and effectiveness of the proposed model.

关键词： DGM(1,1)model non-uniqueness principle of solution interval grey number maximum possibility whitenization value

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Recognition of Ancient Oceanic Island in Paleo-Tethys,Western Yunnan

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Journal of Earth Science 1993年第1期12卷 28-34页

作者： He fuxiang liu BenpeiChina University of Geosciences , Beijing 100083

A volcano-platform carbonate sequence ,from Carboniferous to Permian , is widely trapped in the deep water deposits in Changning- Menglian belt .Three components can be roughly recognized in ascending order as :the lava .the volcaniclastic and carbonate rocks .In most cases, the sequence is incomplete due to faulting resulted from the strong orogenic compression. But (he stratigraphic succession is continuous except for the two interruptions of paleokarsts . which extended from middle Late Carboniferous to Late Permian and from late Early Permian to Late Permian respectively .A preliminary study indicates that the stratigraphy, petrology , sedimentation , vokanism geochemistry and fossils in the sequence are quite similar to mat in modern and ancient oceanic islands and there may be the relics of ancient oceanic islands in the paleo-Tethys .The differences among these sequences probably suggest a complex configuration of the islands or island chain These islands were formed under infra oceanic environments of the paleo-Tethys ,far from continent and accreted to Simao continental margin in Late Permian .The occurrence of large number of ancient oceanic islands in orogenic belts , including the paleo Tethys, Cordillera , etc ..suggests mat some ancient oceans .such as the paleo Tethys and proto-Pacific ,were full of archipelagoes as their modem counterparts . It is possible that more oceanic islands will be recongnized when sufficient research is done in orogenic belts over the world .

关键词： ancient oceanic island paleo - Tethys Western Yunnan.

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Analysis of the Curative Effect of Preoperative Intra-Arterial Infusion Chemoembolization on Stage IB2-IIB Uterine Cervix Cancer

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Chinese Journal of Clinical Oncology 2008年第6期5卷 443-447页

作者： Huashu Li fuxiang liu Guohe Zhou Zhaoxia Mo Department of Gynecology and Obstetrics the 169th Central Hospital of the People＇sLiberation Army of China Hengyang 421002Hunan Province. China.

OBJECTIVETo investigate the short-term and long-termtherapeutic efficacy of preoperative intra-arterial infusion chemo-embolization on stage IB_2-IIB uterine cervix cancer (UCC).METHODS A total of 143 patients with Stage IB_2-IIB UCCwere divided into a clinical trial group and a control *** in the clinical trial group(n=86)were treated with acombined therapy,i.e.,preoperative intra-arterial infusion chemo-embolization,surgical therapy and postoperative radiotherapy,and those in the control group (n=57) were given surgical therapyand post-operative *** adverse effects,changes inlocal lesion and pathological examinations of the cancer,and thestate during the surgery were observed after the intra-arterialinfusion *** survival rate and recurrencerate between the two groups were *** The total effective rate of the intra-arterial infusionchemo-embolization on Stage IB_2-IIB UCC was 93.02%.Thetreatment could reduce tumor size,bring about retro-conversionsof the clinical stage of the tumors and pathological grade of thecancer cells,and decrease the quantity of intra-operative bloodloss as well as the operating *** could significantly improvethe 5-year survival rate (P<0.05),and reduce the 2 and 5-yeartumor recurrence rates (P<0.05).Moreover,its side effects *** Preoperative intra-arterial infusion chemo-embolization can create conditions for radical operation,lower thepostoperative recurrence rate,and improve the prognosis in thepatients with *** is an effective therapy in treating UCC.

关键词： intra-arterial infusion chemo-embolization uterine cervix cancer clinical effectiveness prognosis recurrence.

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Protein trans-splicing based dual-vector delivery of the coagulation factor Ⅷ gene

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Science China(Life Sciences) 2010年第6期53卷 683-689页

作者： ZHU fuxiang,liu ZeLong,CHI XiaoYan & QU HuiGe Life Science College of Ludong University,Yantai 264025,China 1. Life Science College of Ludong University Yantai 264025 China

A dual-vector system was explored for the delivery of the coagulation factor VIII gene,using intein-mediated protein trans-splicing as a means to produce intact functional factor VIII post-translationally.A pair of eukaryotic expression vectors,expressing Ssp DnaB intein-fused heavy and light chain genes of B-domain deleted factor VIII (BDD-FVIII),was *** transient co-transfection of the two vectors into 293 and COS-7 cells,the culture supernatants contained (137±23) and (109±22) ng mL–1 spliced BDD-FVIII antigen with an activity of (1.05±0.16) and (0.79±0.23) IU mL–1 for 293 and COS-7 cells,*** spliced BDD-FVIII was also detected in supernatants from a mixture of cells transfected with inteinfused heavy and light chain *** spliced BDD-FVIII protein bands from cell lysates were visualized by Western *** data demonstrated that intein could be used to transfer the split factor VIII gene and provided valuable information on factor VIII gene delivery by dual-adeno-associated virus in hemophilia A gene therapy.

关键词： intein protein trans-splicing coagulation factor VIII dual-vector gene delivery

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Effects of Trade Liberalization of the Host Country on the Inflow of FDh An Empirical Study on China

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Chinese Business Review 2003年第1期2卷 52-59页

作者： Ping Li fuxiang liu 12 Zhangzhou Road Zibo Shangdong ProvincePostcode Postcode 255049 Master of Economics Associate Professor of Economics School ol Econorrucs ot Shandong University of Technology.

In general terms, either complementation relationships or substitution relationships may exist between the foreign trade of a country and its inflow of FDI. The present paper intends to reconstruct an analysis frame on the relationships between the foreign trade and inflow of FDI of China since its reform and opening to the outside world. Results from measurement and analysis indicate that there are cause-and-effect relationships between China＇s foreign trade and inflow of FDI.

关键词： trade liberalization FDI cointegration test granger causality

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W6Mo5Cr4V2高速钢冲击疲劳性能的研究

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金属热处理 1989年第4期14卷 20-25页

作者：刘福祥陈再良机电部北京机电研究所

研究了热处理工艺对W6Mo5Cr4V2高速钢冲击疲劳性能的影响规律。试验结果得出,奥氏体化温度与冲击疲劳寿命有线性关系。且3J(30kgf·cm)冲击能量的曲线斜率大于5J(50kgf·cm)冲击能量的斜率;经1210℃淬火后,在500～560℃范围内回火的冲... 详细信息

研究了热处理工艺对W6Mo5Cr4V2高速钢冲击疲劳性能的影响规律。试验结果得出,奥氏体化温度与冲击疲劳寿命有线性关系。且3J(30kgf·cm)冲击能量的曲线斜率大于5J(50kgf·cm)冲击能量的斜率;经1210℃淬火后,在500～560℃范围内回火的冲击疲劳寿命出现峰值。由此提出了可获得较佳冲击疲劳性能的合理的淬火和回火工艺。

关键词：高速钢冲击疲劳性能疲劳

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Design of ARM-Based Solar Tracking System

Design of ARM-Based Solar Tracking System

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第37届中国控制会议

作者： Kang Mao fuxiang liu Ruijing Ji School of Aerospace Engineering Beijing Institute of Technology

This paper presents a solar tracking system based on ARM, which mainly adopts the solar trajectory tracking mode, supplemented by the photoelectric sensor tracking mode according to the weather condition, and control the motor rotation to achieve all-time accurate solar tracking. The experimental results show that, the system performance is reliable, and all-weather tracking accuracy is maintained within 0.15 degrees. Therefore, the system can be widely used in solar photovoltaic power generation and lighting devices with solar energy utilization ratio improving greatly.

关键词： solar tracking solar trajectory tracking photoelectric sensor tracking

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三参数Weibull分布有限混合模型及应用

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统计与决策 2018年第15期34卷 14-17页

作者：刘福香哈尔滨商业大学经济学院

为展示有限混合模型的原理及应用,文章利用调查的大兴安岭地区混交林直径分布这类频数数据或分组数据,采用三参数Weibull分布的混合,拟合混交林直径的分布特征。并与传统方法进行比较,结果表明,FMM拟合效果优于传统模型,特别是对于数据... 详细信息

为展示有限混合模型的原理及应用,文章利用调查的大兴安岭地区混交林直径分布这类频数数据或分组数据,采用三参数Weibull分布的混合,拟合混交林直径的分布特征。并与传统方法进行比较,结果表明,FMM拟合效果优于传统模型,特别是对于数据是多峰、有偏和结尾等数据类型。

关键词：有限混合模型三参数Weibull分布分组数据

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滚转弹两框架导引头的前馈补偿技术

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航空学报 2016年第12期37卷 3764-3773页

作者：刘晓莫波刘福祥闫新颖北京理工大学宇航学院北京100081 北京航天自动控制研究所北京100854

针对弹体滚转情况下两框架平台式导引头的伺服控制问题,基于导引头运动学和动力学,建立了导引头稳定回路模型。结合弹体滚转条件下的导引头输入指令和输出视线角速率关系,构建了视线闭环回路。针对偏航、俯仰通道间的解耦控制问题,推导... 详细信息

针对弹体滚转情况下两框架平台式导引头的伺服控制问题,基于导引头运动学和动力学,建立了导引头稳定回路模型。结合弹体滚转条件下的导引头输入指令和输出视线角速率关系,构建了视线闭环回路。针对偏航、俯仰通道间的解耦控制问题,推导出解耦条件,要求两通道由失调角到光轴转动角速度的传递函数相同。仿真分析了该模型在视线角输入以及弹体姿态扰动输入时,弹体滚转对导引头跟踪精度产生的影响,并由此提出了滚转角速度前馈补偿控制方案。结果表明,采用结合滚转角前馈补偿控制的两框架平台式导引头方案可以满足滚转弹的制导精度要求。

关键词：导引头伺服机构弹体滚转速率跟踪精度前馈控制

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