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| 1 | Adaptive block dynamic surface control for integrated missile guidance and autopilot显示文摘A novel integrated guidance and autopilot design method is proposed for homing missiles based on the adaptive block dynamic surface control approach. The fully integrated guidance and autopilot model is established by combining the nonlinear missile dynamics with the nonlinear dynamics describing the pursuit situation of a missile and a target in the three-dimensional space. The integrated guidance and autopilot design problem is further converted to a state regulation problem of a time-varying nonlinear system with matched and unmatched uncertainties. A new and simple adaptive block dynamic surface control algorithm is proposed to address such a state regulation problem. The stability of the closed-loop system is proven based on the Lyapunov theory. The six degrees of freedom (6DOF) nonlinear numerical simulation results show that the proposed integrated guidance and autopilot algorithm can ensure the accuracy of target interception and the robust stability of the closed-loop system with respect to the uncertainties in the missile dynamics. | Hou Mingzhe Liang Xiaoling Duan Guangren | 2013 | Chinese Journal of Aeronautics2013，26，3： | 56 |
| 2 | Variability and reduction of atmospheric pollutants in Beijing and its surrounding area during the Beijing 2008 Olympic Games显示文摘The Beijing-Tianjin-Hebei Atmospheric Environment Monitoring Network was established by the Institute of Atmospheric Physics,Chinese Academy of Sciences.The goals of the network were to monitor and provide warnings of the atmospheric quality in Beijing and its surrounding area during the Beijing 2008 Olympic Games.The results showed that the atmospheric complex pollution exhibited high concentrations of ozone and fine particles and oxidation in summer,with a ubiquitous regional source.The regional mean concentrations of SO2,PM2.5,NO2,and O3_8h max(the maximum daily 8 h mean) and Ox were 22±11,90±40,25±5,136±35 and 112±21 μg/m3 in summer,respectively.During the Olympic Games,the mean concentration of SO2,PM2.5,NO2,O3_8h max,and Ox were 12.5±4,56±28,23±4,114±29,95±17 μg/m3 in the region,respectively,and fell by 51.0%,43.7%,13%,20.2%,and 18.9%,respectively,compared to the prophase mean before the Olympic Games.The concentration of atmospheric pollutants declined significantly and achieved the 'Green Olympics' control goal of air quality.After the Olympic Games,SO2,PM2.5 and NOx increased significantly as the temporary atmospheric pollution control measures were terminated. | XIN JinYuan WANG YueSi TANG GuiQian WANG LiLi SUN Yang WANG YingHong HU Bo SONG Tao JI DongSheng WANG WeiFeng LI Liang LIU GuangRen | 2010 | Chinese Science Bulletin2010，55，18： | 30 |
| 3 | Fluxes of CH4 and N_2O from soil under a tropical seasonal rain forest in Xishuangbanna, Southwest China显示文摘从在在 Xishuangbanna 的热带季节的雨林下面的土壤的 CH4 和 N2O 流动,西南中国用关上的静态的房间技术和气体色层法方法被测量一年。三个处理被放在学习的地里:(A) 没有崽,有垃圾的(B) ,和有垃圾和幼苗的(C) 。结果证明在我们的学习的土壤是大气的 CH4 的一个水池和大气的 N2O 的来源。从处理 A, B,和 C 的观察吝啬的 CH4 流动是 50.0 ± 4.0, 35.9 ± 2.8, 31.6 ± 2.8 μ g C/(m2 · h ) ,分别地并且在 2003 的计算年度流动分别地是 4.1, 3.1,和 2.9 kgC/hm2。从处理 A, B,和 C 的观察吝啬的 N2O 流动是 30.9 ± 3.1, 28.2 ± 3.5, 50.2 ± 3 .7 μ g N/(m2 · h ) ,分别地并且在 2003 的计算年度流动分别地是 4.1, 3.1,和 2.9 kgC/hm2。从处理 A, B,和 C 的观察吝啬的 N2O 流动是 30.9 ± 3.1, 28.2 ± 3.5, 50.2 ± 3 .7 μ g N/(m2 · h ) ,分别地并且在 2003 的计算年度流动是 2.8, 2.6,和 3.7 kgN/hm 2 分别地。在 CH4 和 N2O 流动的季节变化在所有三个处理之中是重要的。垃圾的存在减少了 CH4 举起在湿季节期间(P < 0.05 ) ,然而并非在干旱期期间。调停幼苗的 N2O 排出物有类似的增加在期间湿并且干旱期,显示幼苗在两个季节增加了 N2O 排放。一种强壮的积极关系为处理 B 和处理 C 为所有三个处理,和在 CH4 流动和土壤温度之间的弱关系在 CH4 流动和土壤潮湿之间存在。N2O 流动为所有三个处理与土壤温度相关。 | YAN Yuping SHA Liqing CAO Min ZHENG Zheng TANG Jianwei WANG Yinghong ZHANG Yiping WANG Rui LIU Guangren WANG Yuesi SUN Yang | 2008 | Journal of Environmental Sciences2008，20，2： | 18 |
| 4 | Soil respiration in tropical seasonal rain forest in Xishuangbanna, SW China显示文摘With the static opaque chamber and gas chromatography technique, from January 2003 to January 2004 soil respiration was investigated in a tropical seasonal rain forest in Xishuangbanna, SW China. In this study three treatments were applied, each with three replicates: A (bare soil), B (soil+litter), and C (soil+litter+seedling). The results showed that soil respiration varied seasonally, low from December 2003 to February 2004, and high from June to July 2004. The annual average values of CO2 efflux from soil respiration differed among the treatments at 1% level, with the rank of C (14642 mgCO2· m-2. h-1)>B (12807 mgCO2· m-2. h-1)>A (9532 mgCO2· m-2. h-1). Diurnal variation in soil respiration was not apparent due to little diurnal temperate change in Xishuangbanna. There was a parabola relationship between soil respiration and soil moisture at 1% level. Soil respiration rates were higher when soil moisture ranged from 35% to 45%. There was an exponential relationship between soil respiration and soil temperature (at a depth of 5cm in mineral soil) at 1% level. The calculated Q1o values in this study,ranging from 2.03 to 2.36, were very near to those of tropical soil reported. The CO2 efflux in 2003was 5.34 kgCO2· m-2. a-1 from soil plus litter plus seedling, of them 3.48 kgCO2· m-2. a-1 from soil (accounting for 62.5%), 1.19 kgCO2· m-2. a-1 from litter (22.3%) and 0.67 kgCO2·m-2. a-1 from seedling (12.5%). | SHA Liqing, ZHENG Zheng, TANG Jianwei, WANG Yinghong, ZHANG Yiping, CAO Min, WANG Rui, LIU Guangren, WANG Yuesi & SUN Yang Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China Graduate School of Chinese Academy of Sciences, Beijing 100039, China | 2005 | Science China Earth Sciences2005，48，z1： | 12 |
| 5 | Eigenstructure assignment in a class of second-order dynamic systems显示文摘用在秒顺序的一个类上的 proportional-plus-derivative 反馈控制器的 Eigenstructure 赋值动态系统被调查。为靠近环的特徵向量矩阵和反馈获得的简单、一般、完全的参量的表情基于二简单史密斯形式减小被建立。途径直接利用原来的系统数据并且仅仅在 n 维的矩阵上包含操作。而且,它揭示能进一步被利用完成另外的系统说明的自由的所有度。Anexample 显示出建议途径的效果。 | Guosheng WANG Qiang LV Guangren DUAN | 2006 | 控制理论与应用(英文版)2006，4，3： | 8 |
| 6 | Global stabilizing controller design for linear time-varying systems and its application on BTT missiles显示文摘A parametric method for the gain-scheduled controller design of a linear time-varying system is given. According to the proposed scheduling method,the performance between adjacent characteristic points is preserved by the invariant eigenvalues and the gradually varying eigenvectors.A sufficient stability criterion is given by constructing a series of Lyapunov functions based on the selected discrete characteristic points.An important contribution is that it provides a simple and feasible approach for the design of gain-scheduled controllers for linear time-varying systems,which can guarantee both the global stability and the desired closed-loop performance of the resulted system.The method is applied to the design of a BTT missile autopilot and the simulation results show that the method is superior to the traditional one in sense of either global stability or system performance. | Tan Feng Duan Guangren | 2008 | Journal of Systems Engineering and Electronics2008，19，6： | 8 |
| 7 | Trend,seasonal and diurnal variations of atmospheric CO_2 in Beijing显示文摘The concentration of atmospheric CO2 in Beijing increased rapidly at a mean growth rate of 3.7%·a-1 from 1993 to 1995. After displaying a peak of (409.7±25.9) μmol·mol-1 in 1995, it decreased slowly. Both the almost stable anthropogenic CO2 source and increasing biotic CO2 sink contribute to the drop of CO2 concentration from 1995 to 2000. The seasonal variation of CO2 concentration exhibits a clear cycle with a maximum in winter, averaging (426.8± 20.6)μmol·mol-1, and a minimum in summer, averaging (369.1±6.1)μmol·mol-1. The seasonal variation of CO2 concentration is mainly controlled by phenology. The mean diurnal variation of atmospheric CO2 concentration for a year in Beijing is highly clear: daily maximum CO2 concentration usually occurs at night, but daily minimum CO2 concentration does in the daytime, with a mean diurnal difference more than 34.7μmol·mol-1. It has been revealed that the interannual variations of atmospheric CO2 concentration in winter and autumn regulated the | WANG Yuesi, WANG Changke, GUO Xueqing, LIU Guangren & HUANG YaoLAPC, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100083, China Department of Chemistry, Capital Normal University, Beijing 100037, China | 2002 | Chinese Science Bulletin2002，47，24： | 8 |
| 8 | Kinetics of forward extraction of Ti(IV) from H_2SO_4 medium by P_(507) in kerosene using the single drop technique显示文摘The kinetics of forward extraction of Ti(IV) from H2SO4 medium by P507 in kerosene has been investigated using the single drop technique.In the low concentration region of Ti(IV),the rate of forward extraction at 298 K can be represented by F(kmol·m-2·s-1)=10-5.07 [TiO 2 + ][H+]-1 [NaHA 2 ](o)·Analysis of the rate expression reveals that the rate determining step is(TiO)(i)2+ +(HA 2)(i)-[TiO(HA2)](i)+.The values of Ea,H±,S±,and G±298 are calculated to be 22 kJ·mol-1,25 kJ·mol-1,-218 J·mol-1·K-1,and 25 kJ·mol-1,respectively.The experimental negative S± values indicate that the reaction step occurs via SN2 mechanism. | ZHU Ping HONG Dai WU Jinhua QIAN Guangren | 2011 | Rare Metals2011，30，1： | 8 |
| 9 | Tracking control for air-breathing hypersonic cruise vehicle based on tangent linearization approach显示文摘This paper is focused on developing a tracking controller for a hypersonic cruise vehicle using tangent linearization approach.The design of flight control systems for air-breathing hypersonic vehicles is a highly challenging task due to the unique characteristics of the vehicle dynamics.Motivated by recent results on tangent linearization control,the tracking control problem for the hypersonic cruise vehicle is reduced to that of a feedback stabilizing controller design for a linear time-varying system which can be accomplished by a standard design method of frozen-time control.Through a proper model transformation,it can be proven that the tracking error of the designed closed-loop system decays exponentially.Simulation studies are conducted for trimmed cruise conditions of 110000 ft and Mach 15 where the responses of the vehicle to step changes in altitude and velocity are evaluated.The effectiveness of the controller is demonstrated by simulation results. | Guangbin Cai Guangren Duan Changhua Hu Bin Zhou | 2010 | Journal of Systems Engineering and Electronics2010，21，3： | 7 |
| 10 | Validation of MODIS aerosol products by CSHNET over China显示文摘The Chinese Sun Hazemeter Network (CSHNET) provides the necessary ground-based observation to validate and assess the applicability of MODIS aerosol optical depth (AOD) products over different ecological and geographic regions in China for the first time. The validation results show that the comprehensive utilization ratio and applicability of MODIS products varied very much over different regions and seasons from August 2004 to July 2005. On the Tibetan Plateau, the comprehensive utili- zation ratio of MODIS data was low: MODIS products only accounted for 16% of the ground-based observation; on average, 31% to 45% of MODIS products fell within the retrieval errors issued by NASA. A similar result was found in northern desert areas with the ratio of MODIS to observation ranging from 15% to 55%, with 7% to 39% of MODIS products within errors. In the remote northeast corner of China, low ratios of MODIS to observation were also found ranging from 14% to 46%, with 49% to 69% of MODIS within errors. The forested sites exhibited moderate ratios of MODIS to observation ranging from 46% to 65%, with 30% to 59% of MODIS within errors. This was similar to numbers observed at sites along eastern seashore of China and inland urban sites with the ratio of MODIS to observation between 63% to 75%, with 25% to 67% of MODIS within errors for sites along eastern seashore of China and 43% to 78%, with 35% to 75% of MODIS within errors for inland urban sites. The ratio of MODIS to observation over agricultural areas ranged from 61% to 89%; 59%-88% of MODIS fell within the retrieval errors. At homogeneous and well vegetated areas, the comprehensive utilization ratio of MODIS products was over 80% and above 70% of MODIS products fell within the retrieval errors in growing season. | WANG LiLi XIN JinYuan WANG YueSi LI ZhanQing WANG PuCai LIU GuangRen WEN TianXue | 2007 | Chinese Science Bulletin2007，52，12： | 7 |
| 11 | New versions of Barbalat's lemma with applications显示文摘This note presents a set of new versions of Barbalat's lemma combining with positive (negative) definite functions.Based on these results,a set of new formulations of Lyapunov-like lemma are established.A simple example shows the usefulness of our results. | Mingzhe HOU Guangren DUAN Mengshu GUO | 2010 | 控制理论与应用(英文版)2010，8，4： | 6 |
| 12 | On-line optimal autonomous reentry guidance based on improved Gauss pseudospectral method显示文摘The on-line optimal autonomous reentry guidance of the hypersonic vehicle is proposed based on the improved Gauss pseudospectral method(IGPM).The autonomous reentry guidance requires the hypersonic vehicle can generate the optimal trajectory for the latest flight mission on line and track the new trajectory well under the uncertainty.These two problems are simplified into a nonlinear optimal control problem with nonlinear constraints.The IGPM is introduced to solve the above two problems.The trajectory has to change according to the flight mission and therefore the new optimal trajectory can be obtained by IGPM within about10 s.The optimal feedback guidance law is used to track the reference trajectory to handle the uncertainty.In order to deal with the CPU time delay,which comes from optimizing the new trajectory,the new on-line optimal autonomous reentry guidance is depicted.Finally,the numerical simulation shows that the proposed autonomous guidance can generate optimal trajectory for the new flight mission and have a high tracking accuracy. | SUN Yong HOU MingZhe DUAN GuangRen LIANG XiaoLing | 2014 | Science China(Information Sciences)2014，57，5： | 6 |
| 13 | Microbial bioavailability of dissolved organic nitrogen(DON) in the sediments of Lake Shankou,Northeastern China显示文摘Dissolved organic nitrogen(DON)extracted from Lake Shankou sediments using KCl was isolated into hydrophobic and hydrophilic fractions.The bioavailabilities of the hydrophobic and hydrophilic fractions to three types of bacterial communities collected from sediments,activated sludge and compost products were examined.The DON recoveries obtained by DAX-8 and cation exchange resins treatment were 96.17% ± 1.58% and 98.14% ±0% for the samples obtained from N4 and N14 stations,respectively.After 25 days of incubation at 25°C,most DON(59% to 96%)was degraded.Hydrophilic DON exhibited a higher reduction rate than hydrophobic DON during the growth phase.Untreated wastewater from Changshuihe town was the main degradable DON source to station N4,and 93% of hydrophilic DON and 80% of hydrophobic DON were degraded.Station N14 received a large amount of refractory DON from forest soils and exhibited DON degradation rates of 82% and 71% for the hydrophilic and hydrophobic fractions,respectively.Amino acid contents and fluorescence intensities were also analyzed.Approximately 27% to 74% of amino acids were taken up by day 5,and their concentration gradually increased in the following days due to the decomposition of dissolved proteins.Parallel factor analysis resulted in identification of tryptophan-like proteins,tyrosine-like proteins and FA-like substances.During the growth phase,40%–51% of the tryptophan-like proteins were taken up by bacteria,and the accumulation of tyrosine-like proteins was attributed to the release of biotic substances.The concentration of the FA-like substances decreased due to microbial decomposition. | Mingzhou Su Jingtian Zhang Shouliang Huo Beidou Xi Fei Hua Fengyu Zan Guangren Qian Jianyong Liu | 2016 | Journal of Environmental Sciences2016，28，4： | 5 |
| 14 | Radioimmunoscintigraphy of experimental arterialthrombi in dogs with ^(99m)Tc labelled chimeric monoclonal antibody against human activated platelets SZ-51 Hu显示文摘Radioimmunoscintigraphyofexperimentalarterialthrombiindogswith99mTclabeledchimericmonoclonalantibodyagainsthumanactivatedpla... | Zhang Wei, Wu Jinchang, He Guangren, et al. Thrombosis and Hemostasis Research Unit, The First Affiliated Hospital, Suzhou Medical College, Jiangsu Institute of Homatology, Suzhou 215006, China. | 1998 | Chinese Medical Journal1998，，3： | 5 |
| 15 | Consensus seeking in multiagent cooperative control systems with bounded control input显示文摘Consensus algorithms in multiagent cooperative control systems with bounded control input are studied in this paper.Consensus algorithms are considered for the single-integrator dynamics and double-integrator dynamics under different communication interaction topologies,and show that consensus is reached asymptotically using the algorithm proposed in this paper for the single-integrator dynamics if the undirected interaction graph is connected,and consensus is reached asymptotically if the directed interaction graph is strongly connected,respectively.In addition,the paper further shows that consensus is reached asymptotically using the algorithm proposed for the double-integrator dynamics if the directed interaction graph is strongly connected.The effectiveness of these algorithms is demonstrated through simulations. | Zhang, Shijie Duan, Guangren | 2011 | 控制理论与应用(英文版)2011，9，2： | 5 |
| 16 | Synthesis of polymeric ionic liquids material and application in CO2 adsorption显示文摘We synthesized one quaternary ammonium polymeric ionic liquids(PILs)P[VBTHEA]Cl and three imidazolium PILs of P[VEIm]Br, P[VEIm]BF_4, P[VEIm]PF_6 by free-radical polymerization in solution. These PILs were characterized by FT-IR,~1 H-NMR,^(13)C-NMR, TGA, XRD and SEM. Their CO_2 adsorption capacities were measured under different pressures and temperatures by constant-volume technique. It was observed that quaternary ammonium PILs of P[VBTHEA]Cl have higher adsorption capacity for CO_2 than those imidazolium PILs, following P[VBTHEA]Cl > P[VEIm]PF_6> P[VEIm]BF_4> P[VEIm]Br, which may be ascribed to higher positive charge density on ammonium cation than that on imidazolium cation and thus stronger interaction with CO_2, consistent with the results from dual-mode adsorption model that ammonium PILs have much higher CO_2 bulk absorption than imidazolium PILs. CO_2 adsorption capacity of P[VBTHEA]Cl is 9.02 mg/g under 295 K and 1 bar, which is comparable to that of some other PILs, and is much higher than that of the corresponding ILs monomer. These PILs have good adsorption selectivity for CO_2 over N_2 and regeneration efficiency. | Haiying Ran Jiexin Wang Ahmed A.Abdeltawab Xiaochun Chen Guangren Yu Yinghao Yu | 2017 | Journal of Energy Chemistry2017，26，5： | 4 |
| 17 | Computational functionality-driven design of semiconductors for optoelectronic applications显示文摘The rapid development of the semiconductor industry has motivated researchers passion for accelerating the discovery of advanced optoelectronic materials.Computational functionality-driven design is an emerging branch of material science that has become effective at making material predictions.By combining advanced solid-state knowledge and high-throughput firstprinciples computational approaches with intelligent algorithms plus database development,experts can now efficiently explore many novel materials by taking advantage of the power of supercomputer architectures.Here,we discuss a set of typical design strategies that can be used to accelerate inorganic optoelectronic materials discovery from computer simulations:In silico computational screening;knowledge-based inverse design;and algorithm-based searching.A few representative examples in optoelectronic materials design are discussed to illustrate these computational functionality-driven modalities.Challenges and prospects for the computational functionality-driven design of materials are further highlighted at the end of the review. | Zhun Liu Guangren Na Fuyu Tian Liping Yu Jingbo Li Lijun Zhang | 2020 | InfoMat2020，2，5： | 4 |
| 18 | Two parametric approaches for eigenstructure assignment in second-order linear systems显示文摘This paper considers eigenstructure assignment in second-order linear systems via proportional plus derivative feedback. It is shown that the problem is closely related to a type of so-called second-order Sylvester matrix equations. Through establishing two general parametric solutions to this type of matrix equations, two complete parametric methods for the proposed eigenstructure assignment problem are presented. Both methods give simple complete parametric expressions for the feedback gains and the closed-loop eigenvector matrices. The first one mainly depends on a series of singular value decompositions, and is thus nurnerically simple and reliable; the second one utilizes the right factorization of the system, and allows the dosed-loop eigenvalues to be set undetermined and sought via certain optimization procedures. An example shows the effectiveness of the proposed approaches. | Guangren DUAN(Center for Control Theory and Guidance Technology, Harbin Institute of Technology, P.O. Box 416, Harbin Heilongjiang 150001, China) | 2003 | 控制理论与应用(英文版)2003，1，1： | 4 |
| 19 | IMPROVED ROBUST H-INFINITY ESTIMATION FOR UNCERTAIN CONTINUOUS-TIME SYSTEMS显示文摘完整顺序的柔韧的评估者的设计为连续时间的 polytopic 被调查不明确的系统。主要目的是获得一个稳定的线性评估者以便评价错误系统与规定 H ∞变细水平仍然保持要用体力地稳定。第一,一个简单其他的证明为性能最近建议了的 H ∞的一个改进 LMI 代表被给。基于阻止 Lyapunov 矩阵系统的产品的表演标准动态矩阵,为柔韧的评估者的存在的一个足够的条件以线性矩阵不平等被提供。建议设计策略允许参数依赖者 Lyapunov 功能的使用,这被显示出;因此它不比更早的结果保守。一个数字例子被采用说明可行性;建议设计的优点。 | Aiguo WU Huafeng DONG . Guangren DUAN | 2007 | Journal of Systems Science & Complexity2007，20，3： | 4 |
| 20 | An explicit solution to right factorization with applicationin eigenstructure assignment显示文摘Based on the well-known Leverrier algorithm, a simple explicit solution to right factorization of a linear system is established.This solution is expressed by the controllability matrix of the given system and a symmetric operator matrix.Applications of this solution to a type of generalized Sylvester matrix equations and the problem of parametric eigenstructure assignment by state feedback are investigated,and general complete parametric solutions to these two problems are deduced. These new solutions are simple,and possess desirable structural properties which render the solutions readily implementable.An example demonstrates the effect of the proposed results. | Guangren DUAN Bin ZHOU | 2005 | 控制理论与应用(英文版)2005，3，3： | 3 |
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