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| 1 | Disturbance observer based time-varying sliding mode control for uncertain mechanical system显示文摘It is now well known that the time-varying sliding mode control (TVSMC) is characterized by its global robustness against matched model uncertainties and disturbances. The accurate tracking problem of the mechanical system in the presence of the parametric uncertainty and external disturbance is addressed in the TVSMC framework. Firstly, an exponential TVSMC algorithm is designed and the main features are analyzed. Especially, the control parameter is obtained by solving an optimal problem. Subsequently, the global chattering problem in TVSMC is considered. To reduce the static error resulting from the continuous TVSMC algorithm, a disturbance observer based time-varying sliding mode control (DOTVSMC) algorithm is presented. The detailed design principle and the stability of the closed-loop system under the composite controller are provided. Simulation results verify the effectiveness of the proposed algorithm. | Binglong Cong Xiangdong Liu Zhen Chen | 2012 | Journal of Systems Engineering and Electronics2012，23，1： | 12 |
| 2 | Review of research on high-speed railway subgrade settlement in soft soil area显示文摘Construction issues of high-speed rail infrastructures have been increasingly concerned worldwide,of which the subgrade settlement in soft soil area becomes a particularly critical problem.Due to the high compressibility and low permeability of soft soil,the post-construction settlement of the subgrade is extremely difficult to control in these regions,which seriously threatens the operation safety of high-speed trains.In this work,the significant issues of high-speed railway subgrades in soft soil regions are discussed.The theoretical and experimental studies on foundation treatment methods for ballasted and ballastless tracks are reviewed.The settlement evolution and the settlement control effect of different treatment methods are highlighted.Control technologies of subgrade differential settlement are subsequently briefly presented.Settlement calculation algorithms of foundations reinforced by different treatment methods are discussed in detail.The defects of existing prediction methods and the challenges faced in their practical applications are analyzed.Furthermore,the guidance on future improvement in control theories and technologies of subgrade settlement for high-speed railway lines and the corresponding challenges are provided. | Shunhua Zhou Binglong Wang Yao Shan | 2020 | Railway Engineering Science2020，28，2： | 10 |
| 3 | Super twisting controller for on-orbit servicing to non-cooperative target显示文摘A relative position and attitude coupled controller is proposed for rendezvous and docking between two docking ports located in different spacecraft. It is concerned with servicing to a tumbling non-cooperative target spacecraft in arbitrary orbit subjected to external disturbances.By considering both kinematic and dynamical coupled effects of relative rotation on relative translation, a coupled dynamic model is established to represent the relative motion of docking port on target spacecraft with respect to another on the service spacecraft. The spacecraft control is based on the second order sliding mode algorithm of super twisting(ST). It is schemed to manipulate the relative position and attitude synchronously. A formal proof of the finite time convergence property of the closed-loop system is derived theoretically by the second method of Lyapunov. Numerical simulations with the designed ST controller are presented to validate the analytic analysis by contrast with the twisting control algorithm. Simulation results demonstrate that the proposed relative position and attitude integrated controller is characterized by high precision, strong robustness and high reliability. | Chen Binglong Geng Yunhai | 2015 | Chinese Journal of Aeronautics2015，28，1： | 8 |
| 4 | A Forensic Method for Efficient File Extraction in HDFS Based on Three-Level Mapping显示文摘The large scale and distribution of cloud computing storage have become the major challenges in cloud forensics for file extraction. Current disk forensic methods do not adapt to cloud computing well and the forensic research on distributed file system is inadequate. To address the forensic problems,this paper uses the Hadoop distributed file system(HDFS)as a case study and proposes a forensic method for efficient file extraction based on three-level(3L)mapping. First,HDFS is analyzed from overall architecture to local file system. Second,the 3L mapping of an HDFS file from HDFS namespace to data blocks on local file system is established and a recovery method for deleted files based on 3L mapping is presented. Third,a multi-node Hadoop framework via Xen virtualization platform is set up to test the performance of the method. The results indicate that the proposed method could succeed in efficient location of large files stored across data nodes,make selective image of disk data and get high recovery rate of deleted files. | GAO Yuanzhao LI Binglong | 2017 | Wuhan University Journal of Natural Sciences2017，22，2： | 2 |
| 5 | Canonical solitons associated with generalized Ricci flows显示文摘We construct the canonical solitons,in terms of Cabezas-Rivas and Topping,associated with some generalized Ricci flows. | CHEN BingLong GU HuiLing | 2013 | Science China Mathematics2013，56，10： | 2 |
| 6 | A Precise and Robust Control Strategy for Rigid Spacecraft Eigenaxis Rotation显示文摘Eigenaxis 旋转通常由于它在二取向之间的最短的尖路径的体质为快速的态度演习被认为是近最小的时间策略。在这份报纸,僵硬太空船 eigenaxis 旋转的柔韧的控制问题经由变化时间的滑动模式控制(TVSMC ) 被调查技术。外部骚乱和参数变化被考虑。这柔韧的 eigenaxis 旋转策略的主要特征被一个 TVSMC 算法首先表明。全球滑动阶段象靠近环的系统稳定性一样被证明。另外,为 eigenaxis 旋转的必要条件被提供。随后,压制全球啁啾并且改进控制精确性,骚乱基于观察员的变化时间的滑动模式控制(DOTVSMC ) 算法被介绍,在边界层途径被用来弄软啁啾和骚乱的地方,观察员被设计稀释不希望得到的效果。太空船态度被修改 Rodrigues 参数(MRP ) 为非冗余性代表。最后,数字模拟被采用说明建议策略的有效性,在脉搏宽度脉搏频率(PWPF ) 技术被利用调制开关推进器的地方。 | CONG Binglong LIU Xiangdong CHEN Zhen | 2011 | Chinese Journal of Aeronautics2011，24，4： | 2 |
| 7 | Smoothing positive currents and the existence of Khler-Einstein metrics显示文摘In this paper,we prove a general existence theorem of Khler-Einstein metrics on complete Khler manifolds.We use the heat equation method smoothing certain positive (1,1) current in the canonical class. | CHEN BingLong | 2012 | Science China Mathematics2012，55，5： | 1 |
| 8 | Switching Gain Reduc- tion in Adaptive Sliding Mode Control for Rigid Spacecraft Attitude Maneuvers 显示文摘 | Zhen Chen Binglong cong Xiangdong Liu | 2013 | Mathematical Problems in Engineering2013，2013，： | 1 |
| 9 | Optimized design and experiment of spiral-type intra-row weeding actuator for maize(Zea mays L.)planting显示文摘Mechanical weeding not only avoids crop herbicide residue but also protects the ecological environment.Compared with mechanical inter-row weeding,mechanical intra-row weeding needs to avoid crop plants,which is conducive to causing a higher rate of seedling damage.In order to realize maize(Zea mays L.)intra-row weeding,a maize intra-row weeding mechanism was designed in this study.The mechanism can detect maize seedlings by infrared beam tube,then a sliding-cutting bevel tool moves spirally amid maize seedlings,so as to eradicate intra-row weeds.A field experiment was conducted under the following experimental conditions:the bevel tool rotation speed was 800-1400 r/min,the mechanism forward speed was 4-7 km/h,and the bevel tool depth was 2-14 cm,the experimental results illustrated that the mechanism’s average weeding rate and seedling damage rate were 95.8%and 0.6%,respectively.The variance analysis showed that the primary and secondary factors that affecting the weeding rate and seedling damage rate were the same,which were bevel tool rotation speed,mechanism forward speed,bevel tool depth in soil in a descending order according to the significances.The result of the field experiment may provide a reference for intra-row weeding device design. | Honglei Jia Binglong Gu Zhongyang Ma Huili Liu Gang Wang Mingwei Li Hewen Tan | 2021 | International Journal of Agricultural and Biological Engineering2021，14，6： | 1 |
| 10 | CCR5 recep- tor antagonists : Discovery and SAR of novel 4-hydroxypip- eridine derivatives 显示文摘 | Lu Shoufu Chen Binglong Dave Davey | 2007 | Bioorganic & Medicinal Chemistry Letters2007，17，7： | 1 |
| 11 | CCR5 receptor antagonists: Discovery and SAR of novel 4-hydroxypiperidine derivatives显示文摘 | Shou-Fu Lu Binglong Chen Dave Davey Laura Dunning Stefan Jaroch Karen May James Onuffer Gary Phillips Babu Subramanyam Jih-Lie Tseng Robert G. Wei Ming Wei Bin Ye | 2007 | Bioorganic & Medicinal Chemistry Letters2007，，7： | 1 |
| 12 | An analytical model for evaluating the dynamic response of a tunnel embedded in layered foundation soil with different saturations显示文摘This paper proposes an analytical model for evaluating the dynamic response of an underground railway tunnel in layered foundation soil with different saturations.The soil is modeled as layered media,and the circular tunnel lining is modeled as an infinite Flügge cylindrical shell.The separation of variables method is used to solve the motion equation of the shell,and the wave equation of the soil is solved using the Helmholtz decomposition theorem.A dynamic matrix reflecting the wave vectors of soil layers is established using the transfer matrix method.Based on boundary conditions,the tunnel-soil model is coupled using the transformation method of plane wave functions and cylindrical wave functions.The proposed model is validated by comparison with existing tunnel models,and the effects of saturation and the layered properties of soil on the dynamic response of a layered tunnel-soil system is demonstrated via case studies. | Di Honggui Guo Huiji Zhou Shunhua Wang Binglong He Chao Zhang Xiaohui | 2022 | Earthquake Engineering and Engineering Vibration2022，21，3： | 1 |
| 13 | Atmospheric temperature dependence of the aerosol backscattering coefficient显示文摘 | Binglong Chen Siying Chen Yinchao Zhang He Chen Pan Guo Hao Chen | 2016 | Particuology2016，14，5： | 1 |
| 14 | Distributed attitude synchronization of formation flying via consensus-based virtual structure 显示文摘 | Cong Binglong Liu Xiangdong Chen Zhen | 2011 | Acta Astronautica2011，68，1112： | 1 |
| 15 | CCR5 re- ceptor antagonists: Discovery and SAR of novel 4- hydroxypiperidine derivatives显示文摘 | LU Shoufu CHEN Binglong DAVEY D | 2007 | Bioorganic & Medicinal Chemistry Letters2007，17，7： | 1 |
| 16 | CCR5 receptor antagonists:Discovery and SAR of novel 4-hydroxypiperi- dine derivatives 显示文摘 | Shou-Fu Lu Binglong Cben Dave Davey | 2007 | Bioorganic & Medicinal Chemistry Letters2007，17，7： | 1 |
| 17 | CCR5 receptor antagonists: Discovery and SAR of no- vel 4-hydroxypiperidine derivatives 显示文摘 | Shou-Fu Lu Binglong Chen Dave Davey | 2007 | Bioorganic & Medicinal Chemistry Letters2007，17，7： | 1 |
| 18 | Influence of traditional Chinese medicines on the in vivo metabolism of lopinavir/ritonavir based on UHPLC-MS/MS analysis显示文摘A fast,reliable,and cost-effective liquid chromatography-tandem mass spectrometry method was established to determine the effects of the traditional Chinese medicine employed to treat coronavirus disease 2019,namely,Lianhua Qingwen granules,Huoxiang Zhengqi capsules,Jinhua Qinggan granules,Shufeng Jiedu capsules,and Angong Niuhuang pills,on the pharmacokinetics of lopinavir/ritonavir in rats.Blood samples were prepared using the protein precipitation method and atazanavir was selected as the internal standard(IS).Separation was performed on an Agilent ZORBAX eclipse plus C18(2.1 mm×50 mm,1.8 μm)column using acetonitrile and water containing 0.1%formic acid as the mobile phase for gradient elution.The flow rate was 0.4 mL/min and the injection volume was 2 μL.Agilent Jet Stream electrospray ionization was used for mass spectrometry detection under positive ion multiple reaction monitoring mode at a transition of m/z 629.3→447.3 for lopinavir,m/z 721.3→296.1 for ritonavir,and m/z 705.4→168.1 for the IS.The method showed good linearity in the concentration range of 25→2500 ng/mL(r=0.9981)for lopinavir and 5e500 ng/mL(r=0.9984)for ritonavir.The intra-day and inter-day precision and accuracy were both within±15%.Items,such as dilution reliability and residual effect,were also within the acceptable limits.The method was used to determine the effects of five types of traditional Chinese medicines on the pharmacokinetics of lopinavir/ritonavir in rats.The pharmacokinetic results showed that the half-life of ritonavir in the groups administered Lianhua Qingwen granules and Huoxiang Zhengqi capsules combined with lopinavir/ritonavir was prolonged by approximately 1.5-to 2-fold relative to that in the control group.Similarly,the pharmacokinetic parameters of lopinavir were altered.Overall,the results of this study offer important theoretical parameters for the effective clinical use of five types of traditional Chinese medicines combined with lopinavir/ritonavir to reduce the occurrence of clinical adverse reactions. | Linlin Li Xinxiang Yu Dongmin Xie Ningning Peng Weilin Wang Decai Wang Binglong Li | 2022 | Journal of Pharmaceutical Analysis2022，12，2： | 1 |
| 19 | Volume growth and curvature decay of positive curved Kahler manifolds显示文摘 | Chen Binglong Zhu Xiping | 2005 | Q J Pure Math2005，1，： | 1 |
| 20 | C~;R5 receptor antagonists: Discovery and SAP, of novel 4-hydroxypiperidine derivatives显示文摘 | LU Shoufu CHEN Binglong Chen DAVE Davey | 2007 | Bicorganic & Medicinal Chemistry Letters2007，17，7： | 1 |
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