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| 1 | Networked Control Systems:A Survey of Trends and Techniques显示文摘Networked control systems are spatially distributed systems in which the communication between sensors, actuators,and controllers occurs through a shared band-limited digital communication network. Several advantages of the network architectures include reduced system wiring, plug and play devices,increased system agility, and ease of system diagnosis and maintenance. Consequently, networked control is the current trend for industrial automation and has ever-increasing applications in a wide range of areas, such as smart grids, manufacturing systems,process control, automobiles, automated highway systems, and unmanned aerial vehicles. The modelling, analysis, and control of networked control systems have received considerable attention in the last two decades. The ‘control over networks’ is one of the key research directions for networked control systems. This paper aims at presenting a survey of trends and techniques in networked control systems from the perspective of ‘control over networks’, providing a snapshot of five control issues: sampled-data control, quantization control, networked control, event-triggered control, and security control. Some challenging issues are suggested to direct the future research. | Xian-Ming Zhang Qing-Long Han Xiaohua Ge Derui Ding Lei Ding Dong Yue Chen Peng | 2020 | IEEE/CAA Journal of Automatica Sinica2020，7，1： | 25 |
| 2 | Object-based image analysis for mapping geomorphic zones of coral reefs in the Xisha Islands, China显示文摘Mapping regional spatial patterns of coral reef geomorphology provides the primary information to understand the constructive processes in the reef ecosystem. However, this work is challenged by the pixel-based image classification method for its comparatively low accuracy. In this paper, an object-based image analysis(OBIA)method was presented to map intra-reef geomorphology of coral reefs in the Xisha Islands, China using Landsat 8satellite imagery. Following the work of the Millennium Coral Reef Mapping Project, a regional reef class hierarchy with ten geomorphic classes was first defined. Then, incorporating the hierarchical concept and integrating the spectral and additional spatial information such as context, shape and contextual relationships, a large-scale geomorphic map was produced by OBIA with accuracies generally more than 80%. Although the robustness of OBIA has been validated in the applications of coral reef mapping from individual reefs to reef system in this paper, further work is still required to improve its transferability. | XU Jingping ZHAO Jianhua LI Fang WANG Lin SONG Derui WEN Shiyong WANG Fei GAO Ning | 2016 | Acta Oceanologica Sinica2016，35，12： | 7 |
| 3 | Neural-Network-Based Control for Discrete-Time Nonlinear Systems with Input Saturation Under Stochastic Communication Protocol显示文摘In this paper,an adaptive dynamic programming(ADP)strategy is investigated for discrete-time nonlinear systems with unknown nonlinear dynamics subject to input saturation.To save the communication resources between the controller and the actuators,stochastic communication protocols(SCPs)are adopted to schedule the control signal,and therefore the closed-loop system is essentially a protocol-induced switching system.A neural network(NN)-based identifier with a robust term is exploited for approximating the unknown nonlinear system,and a set of switch-based updating rules with an additional tunable parameter of NN weights are developed with the help of the gradient descent.By virtue of a novel Lyapunov function,a sufficient condition is proposed to achieve the stability of both system identification errors and the update dynamics of NN weights.Then,a value iterative ADP algorithm in an offline way is proposed to solve the optimal control of protocol-induced switching systems with saturation constraints,and the convergence is profoundly discussed in light of mathematical induction.Furthermore,an actor-critic NN scheme is developed to approximate the control law and the proposed performance index function in the framework of ADP,and the stability of the closed-loop system is analyzed in view of the Lyapunov theory.Finally,the numerical simulation results are presented to demonstrate the effectiveness of the proposed control scheme. | Xueli Wang Derui Ding Hongli Dong Xian-Ming Zhang | 2021 | IEEE/CAA Journal of Automatica Sinica2021，8，4： | 5 |
| 4 | Dynamic Event-Triggered Scheduling and Platooning Control Co-Design for Automated Vehicles Over Vehicular Ad-Hoc Networks显示文摘This paper deals with the co-design problem of event-triggered communication scheduling and platooning control over vehicular ad-hoc networks(VANETs)subject to finite communication resource.First,a unified model is presented to describe the coordinated platoon behavior of leader-follower vehicles in the simultaneous presence of unknown external disturbances and an unknown leader control input.Under such a platoon model,the central aim is to achieve robust platoon formation tracking with desired inter-vehicle spacing and same velocities and accelerations guided by the leader,while attaining improved communication efficiency.Toward this aim,a novel bandwidth-aware dynamic event-triggered scheduling mechanism is developed.One salient feature of the scheduling mechanism is that the threshold parameter in the triggering law is dynamically adjusted over time based on both vehicular state variations and bandwidth status.Then,a sufficient condition for platoon control system stability and performance analysis as well as a co-design criterion of the admissible event-triggered platooning control law and the desired scheduling mechanism are derived.Finally,simulation results are provided to substantiate the effectiveness and merits of the proposed co-design approach for guaranteeing a trade-off between robust platooning control performance and communication efficiency. | Xiaohua Ge Shunyuan Xiao Qing-Long Han Xian-Ming Zhang Derui Ding | 2022 | IEEE/CAA Journal of Automatica Sinica2022，9，1： | 5 |
| 5 | Consensus Control of Multi-Agent Systems Using Fault-Estimation-in-the-Loop:Dynamic Event-Triggered Case显示文摘The paper develops a novel framework of consensus control with fault-estimation-in-the-loop for multi-agent systems(MASs)in the presence of faults.A dynamic event-triggered protocol(DETP)by adding an auxiliary variable is utilized to improve the utilization of communication resources.First,a novel estimator with a noise bias is put forward to estimate the existed fault and then a consensus controller with fault compensation(FC)is adopted to realize the demand of reliability and safety of addressed MASs.Subsequently,a novel consensus control framework with fault-estimation-in-the-loop is developed to achieve the predetermined consensus performance with the l_(2)-l_(∞)constraint by employing the variance analysis and the Lyapunov stability approaches.Furthermore,the desired estimator and controller gains are obtained in light of the solution to an algebraic matrix equation and a linear matrix inequality in a recursive way,respectively.Finally,a simulation result is employed to verify the usefulness of the proposed design framework. | Yamei Ju Derui Ding Xiao He Qing-Long Han Guoliang Wei | 2022 | IEEE/CAA Journal of Automatica Sinica2022，9，8： | 4 |
| 6 | Volumetric modulation arc radiotherapy with flattening filter-free beams compared with conventional beams for nasopharyngeal carcinoma:a feasibility study显示文摘There is increasing interest in the clinical use of flattening filter-free(FFF) beams.In this study,we aimed to investigate the dosimetric characteristics of volumetric modulated arc radiotherapy(VMAT) with FFF beams for nasopharyngeal carcinoma(NPC).Ten NPC patients were randomly selected to undergo a RapidArc plan with either FFF beams(RA-FFF) or conventional beams(RA-C).The doses to the planning target volumes(PTVs),organs at risk(OARs),and normal tissues were compared.The technical delivery parameters for RapidArc plans were also assessed to compare the characteristics of FFF and conventional beams.Both techniques delivered adequate doses to PTVs.For PTVs,RA-C delivered lower maximum and mean doses and improved conformity and homogeneity compared with RA-FFF.Both techniques provided similar maximum doses to the optic nerves and lenses.For the brain stem,spinal cord,larynx,parotid glands,oral cavity,and skin,RA-FFF showed significant dose increases compared to RA-C.The dose to normal tissue was lower in RA-FFF.The monitor units(MUs) were(536 ± 46) MU for RA-FFF and(501± 25) MU for RA-C.The treatment duration did not significantly differbetween plans.Although both treatment plans could meet clinical needs,RA-C is dosimetrically superior to RA-FFF for NPC radiotherapy. | Mingzan Zhuang Tuodan Zhang Zhijian Chen Zhixiong Lin Derui Li Xun Peng Qingchun Qiu Renhua Wu | 2013 | Chinese Journal of Cancer2013，32，7： | 3 |
| 7 | Fabrication and performance of La(0.8)Sr(0.2)MnO3/YSZ graded composite cathodes for SOFC显示文摘表演多层(1?x ) La0.8Sr0.2MnO3/x YSZ 分级合成阴极为中间的稳固的氧化物燃料房间(SOFC ) 作为电极材料被学习。多层的合成阴极的热扩大系数,电的电导率,和电气化学的性能被调查。热扩大系数和电的电导率随 YSZ 内容的增加减少了。(1 -x)La0.8Sr0.2MnO3/x YSZ 合成阴极极大地在电极,电解质,和煤气的阶段之中增加了活跃三倍的阶段边界线(TPBL ) 的长度,在在极化电流的极化电阻和增加导致减少密度。三倍层的分级的合成阴极(0.77 A/cm2 ) 的极化水流密度是最高并且单层阴极(0.13 A/cm2 ) 的最低。三倍层的分级的合成阴极的极化电阻( Rp )仅仅是 0.182 敤甠?景氠潯敳祬瀠捡?倠?敭慴楬敺?楳楬潣?倨卍??獢牴瑡獥愠摮瀠汯獩敨?畢歬渠捩敫?倨乂??獢牴瑡獥戠?異獬摥氠獡牥搠灥獯瑩潩?吠敨攠晦'太B漠??獢牴瑡?整灭牥瑡牵?漠祸敧?牰獥?敲?湡??獢牴瑡??晲捡?潲杵湨獥?湯琠敨洠捩潲瑳畲瑣牵?景??佯′楦浬?敷敲椠癮獥楴慧整???慨?敢湥映畯摮琠慨??楨桧牥猠'T瑳慲整琠浥数慲畴敲愠摮愠栠杩敨?硯杹湥瀠敲獳牵?慦潶?桴?潦浲瑡潩?景戠瑥整?............?佯′楦浬?吠敨??楌潃? | SUN Kening PIAO Jinhua ZHANG Naiqing CHEN Xinbing XU Shen ZHOU Derui | 2008 | Rare Metals2008，27，3： | 3 |
| 8 | Synthesis of La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3-δ) Powder for Solid Oxide Fuel Cell by a Nitrate-Citrate Combustion Route显示文摘A nitrate-citrate combustion route to synthesize La0.9Sr0.1 Ga0.8 Mg0.2O3-δ powder for solid oxide fuel cell application was presented. This route is based on the gelling of nitrate solutions by the addition of citric acid and ammonium hydroxide, followed by an intense combustion process due to an exothermic redox reaction between nitrate and citrate ions. The optimum technical parameters are that the pH value is 5, and the molar ratio of citric acid to the total metallic ion is 1.5:1. X-ray diffraction characterization of calcined gel shows that pure phase was synthesized after calcination at 1400℃ for 10 h, and the TEM result shows the calcined powder with average particle size is about 150 nm. The grain resistance contributes to the total resistance of sintered pellet below 500℃. The conductivity of the sintered pellent at 800℃ was 0.07 S-1.cm-1 higher than the conductivity of YSZ(0.05S-1.cm-1 at 800℃) | Naiqing ZHANG, Kening SUN, Derui ZHOU and Ningning WUHarbin Institute of Technology, Harbin 150001, China | 2004 | Journal of Materials Science & Technology2004，20，6： | 2 |
| 9 | Senescent keratinocytes die by auto- phagic programmed cell death 显示文摘 | Gosselin K Deruy E Martian S | 2009 | Am J Patho12009，174，2： | 1 |
| 10 | Senescent keratinocytes die by autophagic programmed cell death显示文摘 | Gosselin K Deruy E Martien S | | 0，，02： | 1 |
| 11 | Sealing Glass of Barium-Calcium- Aluminosilicate System for Solid Oxide Fuel Cells显示文摘 | Piao Jinhua Sun Kening Zhang Naiqing Chen Xinbing Zhou Derui | 2007 | Jouranl of Rare Earths2007，25，4： | 1 |
| 12 | Surface and Coatings Technology显示文摘 | Wu Gang Li Ning Zhou Derui | 2004 | 176(2): 1572004，176，2： | 1 |
| 13 | Influence of BaTi03 on Damping and Dielectric Properties of Filled Polyurethane/ Unsaturated Polyester Resin Interpenetrating Polymer Networks显示文摘 | Tang Dongyan Zhang Jusheng Zhou Derui | 2005 | Journal of Materials Science2005，40，13： | 1 |
| 14 | Vibro-acoustic performance of steel–concrete composite and prestressed concrete box girders subjected to train excitations显示文摘Owning to good mechanical properties,steel–concrete composite(SCC)and prestressed concrete(PC)box girders are the types of elevated structures used most in urban rail transit.However,their vibro-acoustic differences are yet to be explored in depth,while structure-radiated noise is becoming a main concern in noise-sensitive environments.In this work,numerical simulation is used to investigate the vibration and noise characteristics of both types of box girders induced by running trains,and the numerical procedure is verified with data measured from a PC box girder.The mechanism of vibration transmission and vibro-acoustic comparisons between SCC and PC box girders are investigated in detail,revealing that more vibration and noise arise from SCC box girders.The vibration differences between them are around 7.7 dB(A)at the bottom plate,19.3 dB(A)at the web,and 6.7 dB(A)at the flange,while for structure-radiated noise,the difference is around 5.9 dB(A).Then,potential vibroacoustic control strategies for SCC box girders are discussed.As the vibro-acoustic responses of two types of girders are dominated by the force transmitted to the bridge deck,track isolation is better than structural enhancement.It is shown that using a floating track slab can make the vibration and noise of an SCC box girder lower than those of a PC box girder.However,structural enhancement for the SCC box girder is extremely limited in effects.The six proposed structural enhancement measures reduce vibration by only 1.1–3.6 dB(A) and noise by up to1.5 dB(A). | Xun Zhang Hao Luo Derui Kong Tao Chen Xi Li | 2021 | Railway Engineering Science2021，29，4： | 1 |
| 15 | The Influence of Transmutation Conditions on the Adulteration Performance of Nano-scale Nickel Hydroxide显示文摘Spherical Nano-scale nickel hydroxide was prepared through precipitation transmutation method by controlling the transmutation conditions in this paper. The measurement results of XRD and TEM indicate that the crystallization of the nano-scale nickel hydroxide isβ-style and its shape is spherical with a diameter of 40~70 nanometer. The adulteration experiment shows that the adulteration ratio of nano- scale Ni(OH) 2 in common spherical micrometer-scale Ni(OH) 2 exists a optimal value (1∶9). And at this point, the utilization ratio of Ni(OH) 2 in electrodes can be raised by 10%, and the nano-scale nickel hydroxide with sphericity shape shows a better adulteration performance than that with needle shape. | 赵力 ZHANG Cuifen Zhou Derui | 2002 | High Technology Letters2002，8，1： | 1 |
| 16 | A Study on Coastline Extraction and Its Trend Based on Remote Sensing Image Data Mining显示文摘 | Yun Zhang Xueming Li Jianli Zhang Derui Song Jianhong (Cecilia) Xia | 2013 | Abstract and Applied Analysis2013，，： | 1 |
| 17 | Electrodeposited Co-Ni-Al2O3 composite coatings显示文摘 | Wu Gang Li Ning Derui Zhou | 2004 | Surface and Coatings Technology2004，176，： | 1 |
| 18 | Electrodeposited Co- Ni-A1203 composite coatings 显示文摘 | Gang Wu Ning Li Derui Zhou | 2004 | Surface and Coatings Technology2004，176，： | 1 |
| 19 | Composite corrosion inhibitors for secondary alkaline zinc anodes 显示文摘 | JIA Zheng ZHOU Derui ZHANG Cuifen | 2005 | Trans Nonferrous Met Soc China2005，15，1： | 1 |
| 20 | Induced crystallization of amorphous silicon film in contact with aluminum显示文摘 | Wei Cai and Derui Wan | 1992 | Thin Solid Films1992，219，2： | 1 |
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