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| 1 | Characteristic model-based all-coefficient adaptive control for automatic train control systems显示文摘Safe and reliable automatic train control is a primary consideration for any advanced rail transit system.This paper introduces the characteristic model-based modeling method into ATC system and develops an all-coefficient adaptive control.Two characteristic models,namely speed characteristic model and position characteristic model,are established for analyzing both train traction and cruising dynamical characteristics.Control strategies are proposed using single speed feedback and speed/position bi-feedback.Numerical simulations are carried out to verify the effectiveness of the proposed strategies,showing that control objective and required dynamic performance are well satisfied.Moreover,the system shows robustness against time-varying model uncertainties and unknown operational environment dynamics. | GAO ShiGen DONG HaiRong NING Bin | 2014 | Science China(Information Sciences)2014，57，9： | 8 |
| 2 | Impending HRT wave precursors to the Wenchuan M_s8.0 earthquake and methods of earthquake impending prediction by using HRT wave显示文摘We deployed four geo-electric monitoring stations in Sichuan and Yunnan provinces from 2004, using the new generation of equipment (PS-100) and technologies to capture the HRT wave earthquake precursor. Before the Wenchuan Ms8.0 earthquake, we recorded the HRT wave precursor at the only operating station in Hongge (HG, Δ=465 km) and found that significant impending signal had been recorded at the station in the early morning ( 0―5 am) of 12th of May, 2008. The precursor for this earthquake is consistent with precursors recorded for other strong earthquakes. The measured physical properties (geo-resistivity and telluric-current) show tidal wave period oscillations from several days to several months before the earthquakes and the amplitude of such HT oscillation increases significantly towards the occurrence of an earthquake. These HT and RT waves from the epicenter have a causal relationship with the earthquakes that happened several days later. The arrival time of two RT waves is proportional to the distance from the station to the epicenter. The estimated natural decay of the amplitude is correlated with the natural period (T0) of the earthquake fault, which is proportional to the fault length. From this relationship, we can predict the earthquake magnitude. For magnitude 6―9 earthquakes, the natural period is about 1―6 hours. Such oscillation comes from the epicenter area and they can propagate several thousand kilometers in the Earth's crust. Before a strong earthquake in the shallow crust, the conductive pore fluid will experience major changes before the fault rapture. Such fluid change will emit an oscillation in the pore fluid pressure. This is the mechanism for the HRT wave generation. Since the China Earthquake Administration funded the HRT wave short-term earth-quake prediction project in 2003, the first record of HRT precursor wave has been recorded from the 2004-12-26 Sumatra Mw9.0 earthquake with the largest epicentre distance Δ=2900 km. Thereafter, we have captured HRT waves from more than twenty strong earthquakes, which are well-matched and show repeatability, consistency and regularity. All our observation with the HRT waves demonstrate that HRT wave precursors to earthquakes indeed exist. Strong earthquakes can be predicted and short-term and impending earthquake prediction is achievable in the very near future. From all the observations, including the ones at HG station from Wenchuan Ms8.0 earthquake, we conclude that using HRT wave to predict earthquakes is feasible. | QIAN FuYe ZHAO BiRu QIAN Wei ZHAO Jian HE ShiGen ZHANG HongKui LI ShiYu LI ShaoKun YAN GuLiang WANG ChengMin SUN ZhenKai ZHANG DongNing LU Jun ZHANG Ping YANG GuoJun SUN JiaLin GUO ChunSheng TANG YuXiong XU JianMing XIA KunTao JU Hang YIN BangHong LI Ming YANG DongSheng QI WeiLuo HE TaiMing GUAN HuaPing ZHAO YuLin | 2009 | Science China Earth Sciences2009，52，10： | 8 |
| 3 | Distributed cooperative control of multiple high-speed trains under a moving block system by nonlinear mapping-based feedback显示文摘Although the high-speed railways in China have been greatly advanced in the past decades with respect to expanding networks and increasing speed, a fixed block system, which separates the trains with several stationary track block sections, is utilized to guarantee the safe operation of multiple trains. A moving block system, which enables the moving authority of a high-speed train to be the real-time positioning point of its preceding one(plus some necessary safe redundant distance, of course), is under development to further make full use of the high-speed railway lines and improve the automation level by automatic train operation for high-speed trains. The aim of this paper is to design a distributed cooperative control for high-speed trains under a moving block system by giving a cooperative model with a back-fence communication topology. A nonlinear mapping-based feedback control method together with a rigorous mathematic proof for the global stability and ultimate bound of the closed-loop control systems is proposed. Comparative results are given to demonstrate the effectiveness and advantages of the proposed method. | Bin NING Hairong DONG Shigen GAO Tao TANG Wei ZHENG | 2018 | Science China(Information Sciences)2018，61，12： | 8 |
| 4 | High-Speed Trains Automatic Operation with Protection Constraints: A Resilient Nonlinear Gain-based Feedback Control Approach显示文摘This paper addresses the control design for automatic train operation of high-speed trains with protection constraints.A new resilient nonlinear gain-based feedback control approach is proposed,which is capable of guaranteeing,under some proper non-restrictive initial conditions,the protection constraints control raised by the distance-to-go(moving authority)curve and automatic train protection in practice.A new hyperbolic tangent function-based model is presented to mimic the whole operation process of high-speed trains.The proposed feedback control methods are easily implementable and computationally inexpensive because the presence of only two feedback gains guarantee satisfactory tracking performance and closed-loop stability,no adaptations of unknown parameters,function approximation of unknown nonlinearities,and attenuation of external disturbances in the proposed control strategies.Finally,rigorous proofs and comparative simulation results are given to demonstrate the effectiveness of the proposed approaches. | Shigen Gao Yuhan Hou Hairong Dong Sebastian Stichel Bin Ning | 2019 | IEEE/CAA Journal of Automatica Sinica2019，6，4： | 2 |
| 5 | Monoclonal antibody based Dot-ELISA and indirect fluorescence antibody technique for detecting Edwardsiella ictaluri infection in yellow catfish (Pelteobagrus fulvidraco)显示文摘Edwardsiella ictaluri is known as the etiological agent of Red-head disease of yellow catfish(Pelteobagrus fulvidraco),and is the cause of heavy economic losses in the aquaculture industry.In this study,a DotEnzyme Linked Immunosorbent Assay(Dot-ELISA)and an Indirect Fluorescence Antibody technique(IFAT)for detecting Edwardsiella ictaluri were developed by using a monoclonal antibody,5D11.For DotELISA,the working dilutions of 5D11 and the secondary antisera(enzyme-labeled goat anti-mouse Ig)were 1:320 dilution and 1:3000 dilution,respectively.For IFAT,the working dilutions of 5D11 and goatanti-mouse Ig conjugated with fluorescein isothiocyanate were as respectively 1:80 and 1:256.Both of the methods established were highly sensitivity(Minimum detectable concentration,5107 CFU/mL)and had a high degree of accuracy(positive rate was 100%for both artificial infected fish and spontaneous diseased Pelteobagrus fulvidraco).The two reliable methods developed have high potential for quick and efficient detection of Edwardsiella ictaluri in aquaculture production units. | Ruijun Li Hua Huang Xianyu Zhang Shigen Ye Qiang Li | 2017 | Aquaculture and Fisheries2017，2，5： | 1 |
| 6 | Task scheduling optimization in cloud computing based on heuristic algorithm 显示文摘 | Guo Lizheng Zhao Shuguang Shen Shigen | 2012 | Journal of Networks2012，7，3： | 1 |
| 7 | Influence of sintering temperature and holding time on the densification, phase transformation, microstructure and properties of hot pressing WC–40<ce:hsp sp='0.25'/>vol.%Al 2 O 3 composites显示文摘 | Haixia Qu Shigen Zhu Qian Li Chenxin Ouyang | 2011 | Ceramics International2011，，2： | 1 |
| 8 | Electric contact strengthening to improve the bonding between WC-Co coating and 45# steel substrate 显示文摘 | Wang Yalin Zhu Shigen Gu Weisheng | 2010 | Journal of Thermal Spray Technology2010，19，5： | 1 |
| 9 | Freeze-thaw bond durability of rapid-setting concrete repair materials显示文摘 | LI Shigen E GEISSERT D G FRANTZ G C | 1999 | ACI Materials Journal1999，96，2： | 1 |
| 10 | A Prediction of Microstructure Distribution in the through-thickness Direction during and after Hot rolling in carbon steels显示文摘 | Shigen Obu NANB AMitsuru KIT AMUR | 1992 | ISIJ International1992，，3： | 1 |
| 11 | Intercalation and Exfoliation of Kaolinite through PEG显示文摘 | Yoshiyuki S Shigen S | 1989 | Clays and Clay Miner1989，37，： | 1 |
| 12 | 显示文摘 | Fu Shigen Xu Kaili Zhang Naibao | 2011 | Procedla Engineering2011，26，： | 1 |
| 13 | Research on the grou- ting thickness of roof purdah in the mining of karstic water- filling deposit显示文摘 | Fu Shigen Xu Kaili Zhang Naibao | 2011 | Procedia Eng2011，26，： | 1 |
| 14 | Influence of edge radius on the sharpness of chemical fiber cutter blades 显示文摘 | Yuan Yigao Zhu Shigen | 2004 | Textile Research Journal2004，74，4： | 1 |
| 15 | Induction of cerebral thrombosis with phenytoin in rats显示文摘 | Shigen T Takashi S Hidetoshi K | 1995 | Stroke1995，26，： | 1 |
| 16 | First case of Edwardsiella ictaluri infection in China farmed yellow catfish Pelteobagrus fulvidraco显示文摘 | Shigen Ye Hua Li Guo Qiao Zhongshi Li | 2009 | Aquaculture2009，，1： | 1 |
| 17 | First case of Edwardsiella ictaluri infection in China farmed yellow catfish Pelteobagrus fulvidraco显示文摘 | Shigen Ye Hua Li Guo Qiao Zhongshi Li | 2009 | Aquaculture2009，，1： | 1 |
| 18 | A Prediction of Microstructure Distribution in the through-thickness Direction during an after Hot rolling in carbon steels显示文摘 | Shigen Obu NANB AMitsuru KIT AMUR | 1992 | ISIJ International1992，，3： | 1 |
| 19 | Differential Game-based Strategies for Preventing Malware Propagation in Wireless Sensor Networks 显示文摘 | Shen Shigen Li Hongjie Han Risheng | 2014 | IEEE Transactions on Information Forensics & Security2014，9，11： | 1 |
| 20 | Identification and histopathological and pathogenicity analysis of Aeromonas salmonicida salmonicida from goldfish (Carassius auratus) in North China显示文摘In this study,bacterial pathogens were isolated from the liver,spleen,kidney,heart,and muscle of diseased goldfish(Carassius auratus)after a massive outbreak of disease in an aquaculture farm in Anshan,Liaoning Province,North China(N41°05′58.42″E122°53′31.89″).Based on physiological and biochemical characterization of the bacteria and 16S rDNA sequence analysis,the bacterial isolates were identified as Aeromonas salmonicida salmonicida.Virulence gene multilocus sequence typing analysis showed that the bacterial isolates from all the organs collected were of the same type,and clustered in the same phylogenetic group as A.salmonicida salmonicida.The pathogen,was named AS.17 and was resistant to rifampicin,bacitracin,vancomycin,penicillin and compound sulfamethoxazole,but was highly sensitive to nalidixic acid,lomefloxacin,spectinomycin,ofloxacin,and ciprofloxacin.Goldfish experimentally infected with AS.17 had similar symptoms to naturally infected fish,including gill filament anemia,intestinal bleeding,intra-abdominal fluid,and jaw bleeding.Histological analyses showed that the liver,the spleen,the kidney and the intestines of fish infected with AS.17 had severe pathological alterations.In summary,this study reports the isolation of A.salmonicida salmonicida from C.auratus in North China and provides a reference strain and a research foundation for further studies on A.salmonicida disease control and epidemiology. | Shibo Jin Songzhe Fu Ruijun Li Huifeng Dang Dongxu Gao Shigen Ye Zhiqiang Jiang | 2020 | Aquaculture and Fisheries2020，5，1： | 1 |
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