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| 1 | H2A.Z Represses Gene Expression by Modulating Promoter Nucleosome Structure and Enhancer Histone Modifications in Arabidopsis显示文摘 | Xiaozhuan Dai Youhuang Bai Lihua Zhao Xianying DOU Yanhui Liu Lulu Wang Yi Li Weimin Li Yanan Hui Xinyu Huang Zonghua Wang Yuan Qin | 2017 | Molecular Plant2017，10，10： | 14 |
| 2 | A joint mid-course and terminal course cooperative guidance law for multi-missile salvo attack显示文摘Salvo attacking a surface target by multiple missiles is an effective tactic to enhance the lethality and penetrate the defense system. However, existing cooperative guidance laws in the midcourse or terminal course are not suitable for long-and medium-range missiles or stand-off attacking. Because the initial conditions of cooperative terminal guidance that are generally generated from the mid-course flight may not lead to a successful cooperative terminal guidance without proper mid-course flight adjustment. Meanwhile, cooperative guidance in the mid-course cannot solely guarantee the accuracy of a simultaneous arrival of multiple missiles. Therefore, a joint mid-course and terminal course cooperative guidance law is developed. By building a distinct leader-follower framework, this paper proposes an efficient coordinated Dubins path planning method to synchronize the arrival time of all engaged missiles in the mid-course flight. The planned flight can generate proper initial conditions for cooperative terminal guidance, and also benefit an earliest simultaneous arrival. In the terminal course, an existing cooperative proportional navigation guidance law guides all the engaged missiles to arrive at a target accurately and simultaneously.The integrated guidance law for an intuitive application is summarized. Simulations demonstrate that the proposed method can generate fast and accurate salvo attack. | Jie ZENG Lihua DOU Bin XIN | 2018 | Chinese Journal of Aeronautics2018，31，6： | 12 |
| 3 | Formation control of multiple Euler-Lagrange systems via null-space-based behavioral control显示文摘This paper addresses the formation control problem of multiple Euler-Lagrange systems with model uncertainties in the environment containing obstacles. Utilizing the null-space-based(NSB) behavioral control architecture, the proposed problem can be decomposed into elementary missions(behaviors) with different priorities and implemented by each individual system. A class of novel coordination control algorithms is constructed and utilized to achieve accurate formation task while avoiding obstacles and guaranteeing the model uncertainty rejection objective. By using sliding mode control and Lyapunov theory, the formation performance in closed-loop multi-agent systems is proven achievable if the state-dependent gain of the obstacle avoidance mission is appropriately designed. Finally, simulation examples demonstrate the effectiveness of the algorithms. | Jie CHEN Minggang GAN Jie HUANG Lihua DOU Hao FANG | 2016 | Science China(Information Sciences)2016，59，1： | 12 |
| 4 | Leader-Following Consensus for Discrete-Time Multi-Agent Systems with Parameter Uncertainties Based on the Event-Triggered Strategy显示文摘In this paper, the leader-following consensus for discrete-time multi-agent systems with parameter uncertainties is investigated based on the event-triggered strategy. And the parameter uncertainty is assumed to be norm-bounded. A consensus protocol is designed based on the event-triggered strategy to make the multi-agent systems achieve consensus without continuous communication among agents. Each agent only needs to observe its own state to determine its own triggering instants under the triggering function in this paper. In addition, a sufficient condition for the existence of the eventtriggered consensus protocol is derived and presented in terms of the linear matrix inequality. Finally, a numerical example is given to illustrate to efficiency of the event-triggered consensus protocol proposed in this paper. | LIU Xiaoyu SUN Jian DOU Lihua CHEN Jie | 2017 | Journal of Systems Science & Complexity2017，30，1： | 11 |
| 5 | Toward a research framework to conceptualize data as a factor of production:The data marketplace perspective显示文摘The widespread use of machine learning techniques and artificial intelligence algorithms has highlighted the strategic role of data.To acquire data for training algorithms and eventually empowering the digital transformation,data marketplaces are often required to support and coordinate cross-organizational data transactions.However,the prior industry practices have suggested that the transaction costs in the data marketplaces are severely high,and the supporting infrastructure is far from mature.This paper proposes a data attributes-affected data exchange(DADE)conceptual model to understand the challenges and directions for developing data marketplaces.Specifically,our model framework is built upon two dimensions,data lifecycle maturity and data asset specificity.Based on the DADE model,we propose four approaches for developing data marketplaces and discuss future research directions with an overview of computational methods as potential technical solutions. | Lihua Huang Yifan Dou Yezheng Liu Jinzhao Wang Gang Chen Xiaoyang Zhang Runyin Wang | 2021 | Fundamental Research2021，1，5： | 11 |
| 6 | Identifying Influencing Factors for Data Transactions:A Case Study from Shanghai Data Exchange显示文摘In the age of artificial intelligence,firms'internal data are increasingly valuable when merged with each other for inter-firm analysis and predictions.However,the inter-firm data transactions represent a novel challenge on pricing due to the complex nature of data,such as quality information asymmetry,lack of pricing standards,and the negligible marginal cost.This paper conducts a case study at Shanghai Data Exchange to explore the factors that can facilitate the data transactions between buyers and providers.We use interview transcripts from 18 participating firms to construct our three theoretical dimensions:increasing the perceived value,mitigating the cost,and improving the market design.We then browse through 18 factors to assess their value for further improvements.The managerial implications are also discussed. | Qifeng Tang Zhiqing Shao Lihua Huang Wenyi Yin Yifan Dou | 2020 | Journal of Systems Science and Systems Engineering2020，29，6： | 9 |
| 7 | Multi-Objective Cooperative Salvo Attack Against Group Target显示文摘这份报纸在一个组为反对目标的多重巡航导弹的合作保留攻击的问题建议一个答案。导弹到的到达时间的同步击中他们的普通目标,最小化攻击的时间消费并且最大化期望的损坏组织目标同时被考虑。处于包括二的一个层次混合变量优化问题的这些运作的目的结果 subproblems 打字,也就是在上面的水平的多客观的导弹目标任务(MOMTA ) 问题和计划的时间最佳的协调路径(TOCPP ) 在底层的问题。以便解决挑战性的问题,计划方法的一条最近建议的协调路径被采用解决 TOCPP 问题完成不久反对每个目标的保留攻击。与为 MOMTA 发现一个更能干的解答者的目的,三个最先进的多客观的优化方法(妈妈) ,也就是 NSGA-II, MOEA/D 和 DMOEA-C,被采用。最后,一个典型例子被用来表明建议方法的优点。一个简单基于规则的方法也为比较被采用。比较结果证明 DMOEA-C 是在为解决 MOMTA 问题的三位妈妈之中的最好的选择。为 MOMTA 和为 TOCPP 计划方法的协调路径的 DMOEA-C 的联合能比基于规则的方法产生显然更好的保留攻击计划。 | ZENG Jie DOU Lihua XIN Bin | 2018 | Journal of Systems Science & Complexity2018，31，1： | 6 |
| 8 | Unsupervised Learning of Gaussian Mixture Model with Application to Image Segmentation显示文摘 | LI Bo LIU Wenju DOU Lihua | 2010 | Chinese Journal of Electronics2010，19，3： | 2 |
| 9 | Predictive control for mechanical system with backlash based on hybrid model显示文摘The mechanical system with backlash is distinguished between a'backlash mode'and a'contact mode'.The inherent switching between the two operating modes makes the system a prime example of hybrid system.For eliminating the bad effect of backlash, a piecewise affine(PWA) model of the mechanical servo system with backlash is built.The optimal control of constrained PWA system is obtained by taking advantage of model predictive control(MPC) method, and the explicit solution of MPC in a look-up table form is figured out by combining the dynamic programming and multi-parametric quadratic programming, thereby establishing an explicit hybrid model predictive controller.Furthermore, a piecewise quadratic(PWQ) function for guaranteeing the stability of closed-loop control is found by formulating the search of PWQ function as a semi-definite programming problem.In the tracking experiments, it is demonstrated that the explicit hybrid model predictive controller has a good traction control effect on the mechanical system with backlash.The error meets the demands of real system.Further, compared to the direct on-line computation, the computation burden is reduced by the explicit solution, thereby being suitable for real-time control of system with short sampling time. | Dou Lihua Dong Lingxun Chen Jie Xia Yuanqing | 2009 | Journal of Systems Engineering and Electronics2009，20，6： | 2 |
| 10 | An overview of recent progress in high-order nonholonomic chained system control and distributed coordination显示文摘This paper reviews some main results and progress concerning with nonholonomic system control,especially focusing on the networked chained system coordination.The controllability of nonholonomic system,the control method of nonholonomic system,the chained form transformation,the basic graph theory for multi-agent systems are recalled,respectively.Some important definitions,lemmas,theorems and dynamics are elaborated.Both the consensus and formation control problems for networked nonholonomic chained systems are summarised.Finally,some open questions are proposed. | Jie Huang Jie Chen Hao Fang Lihua Dou | 2015 | Journal of Control and Decision2015，2，1： | 2 |
| 11 | Synergy decision in the multi-target tracking based on IRST and intermittent-working radar 显示文摘 | YANG Guosheng DOU Lihua CHEN Jie | 2001 | Information Fusion2001，2，2： | 1 |
| 12 | Synergy decision in the multi-target tracking based on IRST and intermittent-working radar显示文摘 | YANG Guosheng DOU Lihua CHEN Jie | 2001 | Information Fusion2001，34，2： | 1 |
| 13 | Clock synchronization between IGPS basestations based on an adaptive discretetime Kalman filtering显示文摘 | Yu Miao Chen Jie Dou Lihua | 2009 | Systems Engineering and Electronic2009，31，7： | 1 |
| 14 | Hybrid model predictive control for speed control of permanent magnet synchronous motor with saturation显示文摘A discrete-time hybrid model of a permanent magnet synchronous motor (PMSM) with saturation in voltage and current is formulated.The controller design with incorporated constraints is achieved in a systematic way from modeling to control synthesis and implementation.The Hybrid System Description Language is used to obtain a mixed-logical dynamical (MLD) model.Based on the MLD model,a model predictive controller is designed for an optimal speed regulation of the motor.For reducing computation complexity and computation time,the MPC controller is converted to its equivalent explicit piecewise affine form by multiparametric programming.Simulations and experiments show that good and robust control performance is achieved by the hybrid model predictive controller as compared with the linear quadratic regulator (LQR) and the PID controller. | Dong, Lingxun Dou, Lihua Chen, Jie Xia, Yuanqing | 2011 | 控制理论与应用(英文版)2011，9，2： | 1 |
| 15 | Sedative and hypnotic activities of the ethanol fraction from Fructus Schisandrae in mice and rats显示文摘 | Fang Huang Yating Xiong Lihua Xu Shiping Ma Changgui Dou | 2006 | Journal of Ethnopharmacology2006，，3： | 1 |
| 16 | Synergy Decision in The Multi-Target Tracking Based on IRST and Intermittent- Working Radar 显示文摘 | GuoSheng Yang LiHua Dou Jie Chen ChaoZhen Hou | 2001 | Information Fusion2001，2，： | 1 |
| 17 | Synergy decision for radar and IRST显示文摘 | Dou Lihua Yang Guosheng | 2002 | Data Fusion Journal of Beijing Institute of Technology2002，11，3： | 1 |
| 18 | High-resolution crustal velocity structure in the Shanxi rift zone and its tectonic implications显示文摘The Shanxi rift zone,located in the Trans-North China Orogen(TNCO)of the North China Craton(NCC),is wellknown for hosting large intraplate earthquakes in continental China.The TNCO is a suture zone formed by the amalgamation of the eastern and the western blocks of the NCC.After its formation,it was reactived and deformed by later tectonic activities,which result in complex lithospheric heterogeneities.Thus,the detailed crustal structure of the Shanxi rift zone is critical for understanding the tectonics and seismogenic mechanism in this area,which will shed new lights on the formation and dynamic evolution of the NCC.In this study,we applied ambient noise tomography based on 18 months continuous records from 108 seismic stations located in Shanxi and its surroundings,in order to constrain its detailed crustal structure.We measured 4437 Rayleigh wave phase velocity dispersion curves in the period of 5–45 s from the cross-correlation functions.Next,a surface wave direct inversion algorithm based on surface-wave ray tracing was used to resolve a 3-D S-wave velocity model in the upper 60 km with lateral resolution of~50–80 km.The tomographic images show that the sedimentary thickness of the Taiyuan Basin is less than 5 km.At depth of 0–10 km,we observe a good correlation between the imaged structural variations with geological and topographic features at the surface.For example,the center of rift shows low-velocity anomalies and the uplifting areas on both sides are characterized by high velocity anomalies.The western and eastern boundaries of the slow materials coincide with the faults that control the basin.The slow material extends from the shallow surface to depth of about 15 km but it getting smaller in shape at deeper depth.For the Taiyuan Basin,Linfen Basin,and Yuncheng Basin in the central and southern parts,the structure is dominant by slow materials in the upper crust but changes to strong high-velocity anomalies in the lower crust and the uppermost mantle at depth deeper than 25 km.We interprete these high-velocity anomalies to be associated with the cold remnant of the underplated basalt in the lower crust that were formed in early Tertiary before the basin was stretched.We also observe the low-velocity anomaly beneath the Datong volcanic area,which extends from the uppermost mantle to a depth of 20 km vertically and migrates from west to east laterally.It may reflect the upwelling channel of the magmatic material in Datong.Moreover,the strong low-velocity anomalies presented north of 38°N could be related to the heated crustal materials with paritial melting as a result of the intensive magmatic activities of the Datong Volcano since the Cenozoic.In our study region,seismicity mainly concentrates in the depth range of 5–20 km and we find that most earthquakes appear to occur in places where velocity changes from high to low rapidly,with slight higher concentration in the faster material areas.In summary,our high-resolution 3-D crustal velocity model provides important seismological constraints to understand the tectonic evolution and seismicity across the Shanxi rift zone. | Liting DOU Huajian YAO Lihua FANG Song LUO Meiqin SONG Xiaomei YAN Cheng CHENG | 2021 | Science China Earth Sciences2021，64，5： | 1 |
| 19 | Computational Study of Ternary Devices: Stable, Low-Cost,and Efficient Planar Perovskite Solar Cells显示文摘Although perovskite solar cells with power conversion efficiencies(PCEs) more than 22% have been realized with expensive organic charge-transporting materials, their stability and high cost remain to be addressed. In this work, the perovskite configuration of MAPbX(MA = CH_3 NH_3,X = I_3, Br_3, or I_2Br) integrated with stable and low-cost Cu:Ni Oxhole-transporting material, ZnO electron-transporting material, and Al counter electrode was modeled as a planar PSC and studied theoretically. A solar cell simulation program(wx AMPS), which served as an update of the popular solar cell simulation tool(AMPS: Analysis of Microelectronic and Photonic Structures), was used. The study yielded a detailed understanding of the role of each component in the solar celland its effect on the photovoltaic parameters as a whole. The bandgap of active materials and operating temperature of the modeled solar cell were shown to influence the solar cell performance in a significant way. Further, the simulation results reveal a strong dependence of photovoltaic parameters on the thickness and defect density of the light-absorbing layers. Under moderate simulation conditions, the MAPb Br_3 and MAPbI _2 Br cells recorded the highest PCEs of 20.58 and 19.08%, respectively, while MAPbI_3 cell gave a value of 16.14%. | Sajid Sajid Ahmed Mourtada Elseman Jun Ji Shangyi Dou Dong Wei Hao Huang Peng Cui Wenkang Xi Lihua Chu Yingfeng Li Bing Jiang Meicheng Li | 2018 | Nano-Micro Letters2018，10，3： | 1 |
| 20 | Method for maneuvering target video frequency tracking based on inductive factor of posture information显示文摘A method for maneuvering target tracking based on inductive factor of posture information is proposed.A distinguished characteristic of video frequency tracking is that it can capture the target posture changes from its picture easily,and the posture change means the motive model of the target will change.This information is very important to predict the trace of maneuvering target.Based on this idea,the quantified values of the target posture change are obtained using Hough algorithm,this key values are defined as inductive factor of posture information,and then,the multiple grey trace predict models are established and the degrees of fuzzy subordinate values for every model are calculated with the inductive factor,the maneuvering extent values are determined by a new analysis method of stochastic differential equations for each model used to modify the degree of fuzzy subordinate values,these constitute the weighted values for every grey predict collection.Finally,the synthesis predicting weighted result is obtained. The experimental results show that the new method is superior to the conventional algorithm. | Xun Chen Lihua Dou Juan Zhang | 2010 | Journal of Systems Engineering and Electronics2010，21，2： | 0 |
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