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| 1 | 帽儿山地区森林冠层叶面积指数的地面观测与遥感反演显示文摘叶面积指数(leaf area index,LAI)是陆地生态系统最重要的结构参数之一,遥感和基于冠层孔隙率模型的光学仪器观测是快速获取LAI的有效方法,但由于植被叶片的聚集效应,这些方法通常只能获取有效叶面积指数(effectiveLAI,LAIe).本文以东北林业大学帽儿山实验林场为研究区,利用LAI2000观测森林冠层LAIe,并结合TRAC观测的叶片聚集度系数估算了森林冠层LAI,并通过分析基于Landsat5-TM数据计算的不同植被指数与LAIe之间的关系,建立了该区森林LAI遥感估算模型.结果表明:研究区阔叶林的LAI和LAIe基本相当,而针叶林的LAI比LAIe大27%;减化比值植被指数(reduced simple ratio,RSR)与该区LAIe的相关性最好(R2=0.763,n=23),最适合该区LAI的遥感提取.当海拔<400 m时,LAI随海拔高度的上升而快速增大;当海拔在400~750 m时,LAI随海拔高度的上升缓慢增大;当海拔>750 m时,LAI呈下降趋势.研究区森林冠层LAI与森林地上生物量存在显著的正相关关系. | 朱高龙 居为民 Jing M.Chen 范文义 周艳莲 李显风 李明泽 | 2010 | 应用生态学报2010，21，8： | 52 |
| 2 | 中轴性脊柱关节炎:双能量虚拟去钙CT成像在检测骶髂关节骨髓水肿中的应用显示文摘目的探讨双能量虚拟去钙成像(VNCa)CT对中轴性脊柱关节炎相关骶髂关节炎病人骨髓水肿的诊断价值。材料与方法这项前瞻性研究连续收集2016年4月—2017年12月期间47例受试者[年龄14~41岁,平均27岁(男28例,年龄14~37岁,平均24岁;女19例,年龄17~41岁,平均29岁)],行双能CT和3.0 T MRI检查。 | H.J.Wu G.F.Zhang L.Shi X.H.Li M.Chen X.Y.Huang 李倩(译) 王玉婷(校) | 2019 | 国际医学放射学杂志2019，0，2： | 21 |
| 3 | Carbon neutrality:Toward a sustainable future显示文摘Carbon neutrality refers to net-zero carbon dioxide(CO2)emissions attained by balancing the emission of CO2 with its removal so as to stop its increase in the atmosphere that causes global warming.As of February 2021,124 countries had pledged to achieve carbon neutrality by 2050 or 2060.This is a remarkable development reached after the annual United Nations Conference of the Parties of 1995,in particular those of Kyoto(1997),Bonn(2001),Bali(2007),and Paris(2015),with progressively more concrete binding commitments to emission reduction by the parties(countries). | Jing M.Chen | 2021 | The Innovation2021，2，3： | 10 |
| 4 | Online schedule for autonomy of multiple unmanned aerial vehicles显示文摘An online rectangle based scheduling algorithm(RSA) is developed to improve autonomy of multiple unmanned aerial vehicles(UAVs) to search a field of forest together. The purposes of RSA are to online decide the number of the UAVs to be assigned and to schedule the path for the assigned UAVs to search the missed areas resulted from the previous search. The main ideas of RSA are to cover each separated zone of the missed areas with a rectangle and then to schedule the path to search the rectangles. Thus, RSA is robust against the unknown shapes and sizes of the missed areas. The forest search is applied to verify the online RSA in simulation. The simulation results demonstrate that the online RSA is successful to decide the number of the UAVs to be assigned and to schedule the path for the assigned UAVs to search the missed areas. | Kemao PENG Feng LIN Ben M.CHEN | 2017 | Science China(Information Sciences)2017，60，7： | 5 |
| 5 | Research on High-Speed Drilling Performances of Austenitic Stainless Steels显示文摘Due to specific properties arising from their structure (high ductility, high toughness,strong tenacious and low heat conductivity), the stainless steels have poor machinability. The drilling of the stainless steels becomes the machining difficulty for their serious work-hardening and abrasion of tools. In this paper, the austenitic stainless steel is used as the work-piece to perform the contrastive experiments with the TiN coated and TiAlN-coated high-speed steel drills. The cutting force, torque, cutting temperature, and the abrasion of drills and tool life are tested and analyzed in the process of high-speed drilling. Experiment results show the effect of drilling speed on cutting force, cutting temperature, and drill wear. TiAlN-coated drills demonstrate better performances in high speed drilling. The research results will be of great benefit in the selection of drills and in the control of tool wear in high speed drilling of stainless steels. | J.W.Zhong Y.P.Ma F.H.Sun M.Chen | 2004 | 上海交通大学学报2004，38，z2： | 5 |
| 6 | Reversible solid-oxide cells for clean and sustainable energy显示文摘This review gives first a brief view of the potential availability of sustainable energy.It is clear that over 100 times more solar photovoltaic energy than necessary is readily accessible and that practically available wind alone may deliver sufficient energy supply to the world.Due to the intermittency of these sources,effective and inexpensive energy-conversion and storage technology is needed.Motivation for the possible electrolysis application of reversible solid-oxide cells(RSOCs),including a comparison of power-to-fuel/fuel-to-power to other energy-conversion and storage technologies is presented.RSOC electrochemistry and chemistry of H_(2)O,CO_(2),H_(2),CO,CnHm(hydrocarbons)and NH3,including thermodynamics and cell performance,are described.The mechanical strength of popular cell supports is outlined,and newly found stronger materials are mentioned.Common cell-degradation mechanisms,including the effect of common impurities in gases and materials(such as S and Si),plus the deleterious effects of carbon deposition in the fuel electrode are described followed by explanations of how to avoid or ease the consequences.Visions of how RSOCs powered by sustainable energy may be applied on a large scale for the transportation sector via power-to-fuel technology and for integration with the electrical grid together with seasonal storage are presented.Finally,a brief comparison of RSOCs to other electrolysis cells and an outlook with examples of actions necessary to commercialize RSOC applications are sketched. | M.B.Mogensen M.Chen H.L.Frandsen C.Graves J.B.Hansen K.V.Hansen A.Hauch T.Jacobsen S.H.Jensen T.L.Skafte X.Sun | 2019 | Clean Energy2019，3，3： | 5 |
| 7 | An overview on development of miniature unmanned rotorcraft systems显示文摘In this article,we attempt to document a technical overview on modern miniature unmanned rotorcraft systems.We first give a brief review on the historical development of the rotorcraft unmanned aerial vehicles(UAVs),and then move on to present a fairly detailed and general overview on the hardware configuration,software integration,aerodynamic modeling and automatic flight control system involved in constructing the unmanned system.The applications of the emerging technology in the military and civilian domains are also highlighted. | Guowei CAI Ben M.CHEN Tong H.LEE | 2010 | Frontiers of Electrical and Electronic Engineering in China2010，5，1： | 4 |
| 8 | Optimization of hole-boring radiation pressure acceleration of ion beams for fusion ignition显示文摘In contrast to ion beams produced by conventional accelerators,ion beams accelerated by ultrashort intense laser pulses have advantages of ultrashort bunch duration and ultrahigh density,which are achieved in compact size.However,it is still challenging to simultaneously enhance their quality and yield for practical applications such as fast ion ignition of inertial confinement fusion.Compared with other mechanisms of laser-driven ion acceleration,the hole-boring radiation pressure acceleration has a special advantage in generating high-fluence ion beams suitable for the creation of high energy density state of matters.In this paper,we present a review on some theoretical and numerical studies of the hole-boring radiation pressure acceleration.First we discuss the typical field structure associated with this mechanism,its intrinsic feature of oscillations,and the underling physics.Then we will review some recently proposed schemes to enhance the beam quality and the efficiency in the hole-boring radiation pressure acceleration,such as matching laser intensity profile with target density profile,and using two-ion-species targets.Based on this,we propose an integrated scheme for efficient high-quality hole-boring radiation pressure acceleration,in which the longitudinal density profile of a composite target as well as the laser transverse intensity profile are tailored according to the matching condition. | S.M.Weng Z.M.Sheng M.Murakami M.Chen M.Liu H.C.Wang T.Yuan J.Zhang | 2018 | Matter and Radiation at Extremes2018，3，1： | 3 |
| 9 | The role of dietary factors in chronic disease control in China显示文摘 | C. M.Chen W.Zhao Z.Yang Y.Zhai Y.Wu L.Kong | 2008 | Obesity Reviews2008，，： | 3 |
| 10 | Complex system and intelligent control: theories and applications显示文摘Complex systems are the systems that consist of a great many diverse and autonomous but interacting and interdependent components whose aggregate behaviors are nonlinear. As phased by Aristotle,'the whole is more than the sum of its parts;' properties of complex systems are not a simple summation of their individual parts.Complex systems are widespread. Typical examplesofcomplexsystemscanbefoundinthehuman brain,flocking formation of migrating birds,power grid,transportation systems,autonomous vehicles,social networks, and communication networks. | Jie CHEN Ben M.CHEN Jian SUN | 2019 | Frontiers of Information Technology & Electronic Engineering2019，20，1： | 3 |
| 11 | Novel ternary Ag/CeVO_4/g-C_3N_4 nanocomposite as a highly efficient visible-light-driven photocatalyst显示文摘The CeVO_4/graphitic C_3N_4 composites have exhibited much enhanced photocatalytic property for degrading methylene blue(MB) pollutant under visible light irradiation compared with single-phase g-C_3N_4 or CeVO_4. The composite S5 obtained from an optimized mass ratio(5%) of CeVO_4 to dicyanamide(DCDA) exhibits the highest photocatalytic activity. Here, ternary Ag/CeVO_4/g-C_3N_4 composites denoted as X%Ag/S5 were prepared by an ultrasonic precipitation method to improve the photocatalytic property of S5. The TEM images show that CeVO_4 and Ag nanoparticles are well distributed on the layered g-C_3N_4, which agree well with the XRD results. The UV spectra show that the 7%Ag/S5 sample has the widest absorption range and the enhanced absorption intensity under visible light irradiation. The corresponding band gap of 7%Ag/S5(2.5 eV) is much lower than that of S5(2.65 eV). The corresponding k value of 7%Ag/S5 is much higher than those of g-C_3N_4 and CeVO_4. The degradation experiments for MB solution suggest that the 7%Ag/S5 sample has the optimal photocatalytic performance, which can degrade MB solution completely within 120 min. The enhanced photocatalytic property of the composites is ascribed to not only the effect of heterojunction structure, but also the surface plasma resonance effect of Ag nanoparticles. | J.REN Y.Z.WU J.M.PAN X.H.YAN M.CHEN J.J.WANG D.F.WANG C.ZHOU Q.WANG X.N.CHENG | 2018 | Journal of Advanced Ceramics2018，7，1： | 3 |
| 12 | Stool DNA-based versus colonoscopy-based colorectal cancer screening: Patient perceptions and preferences显示文摘Objective:Stool DNA(sDNA)tests offer a noninvasive form of colon cancer screening for pa-tients,and although the test is expected to increase uptake of colon cancer screening,it is unknown if patients’perceptions of the sDNA test differ according to race and other patient characteristics.Methods:We conducted a self-administered survey of patients undergoing both a colonoscopy and an sDNA test to evaluate perceptions of sDNA testing.Results:Of the 613 participants who were sent surveys,423 responded(69%response rate).Respondents self-identified as African American(n=127,30%),Caucasian(n=284,67%),and other ethnicity(n=12,3%).In general,participants found the sDNA test more suitable than a colonos-copy(n=309,75%).In univariate analyses,a higher percentage of Caucasians as compared with African Americans found the sDNA test more suitable than a colonoscopy(89%vs.76%,p<0.01),and more Caucasians than African Americans preferred the sDNA test(43%vs.32%,p<0.05).Ad-justment for covariates reduced these racial differences to no significance.A family history of colo-rectal cancer remains a significant factor for patient’s preferences for screening regardless of race.Conclusions:Our study shows no racial differences in the perception of and preference for sDNA testing for colon screening.Intervention to increase the uptake of sDNA testing may help reduce racial disparities in colorectal cancer. | Matthew V.Abola Todd F.Fennimore Marcia M.Chen Zhengyi Chen Ashutosh K.Sheth Gregory Cooper Li Li | 2015 | Family Medicine and Community Health2015，3，3： | 2 |
| 13 | Experimental study of water and dissolved pollutant runoffs on impervious surfaces显示文摘The water and dissolved pollutant runoffs on impervious surfaces are the essential factor to be considered in design methods to minimize the impacts of the diffuse water pollution. In this paper, experiments are conducted to study the water and dissolved pollutant runoffs on impervious surfaces for different rainfall intensities and surface roughnesses. It is shown that a larger rainfall intensity and a smaller surface roughness reduce the time of concentration and increase the pollutant transport rate. Most of the pollutant runoffs take place at the initial stage of the rainfall. The pollutant transport rate rapidly reaches a peak and then gradually drops to zero. | 肖洋 张涛涛 Dongfang LIANG Jack M.CHEN | 2016 | Journal of Hydrodynamics2016，28，1： | 2 |
| 14 | Autonomous reconfigurable hybrid tail-sitter UAV U-Lion显示文摘We present in this work the development of a novel hybrid unmanned aircraft platform, U-Lion,which has both vertical take-off and landing(VTOL) and cruising flight capabilities. Our design is in tail-sitter structure with reconfigurable wings, which combines the advantages of a fixed-wing plane and a rotor helicopter effectively. This allows it to transit from vertical take-off to hovering, before flying in cruise mode for efficient long duration flight. The propulsion comes from two coaxial contra-rotating motors fixed on a gimbal mechanism,which can change the direction of the motors for the required thrust. This thrust-vectored propulsion system primarily provides control in the VTOL mode but also enhances flight capabilities in the cruise mode. The hybrid aircraft is equipped with GPS and airspeed sensors, and has an onboard avionic system with advanced flight control algorithms to perform fully autonomous VTOL and cruising flights, in addition to transiting effectively between VTOL and cruising flight modes. The overall design has been successfully verified by actual flight experiments. | Kangli WANG Yijie KE Ben M.CHEN | 2017 | Science China(Information Sciences)2017，60，3： | 2 |
| 15 | Overview of obesity in Mainland China显示文摘 | C. M.Chen | 2008 | Obesity Reviews2008，，： | 1 |
| 16 | Misses and near‐misses after postoperative radiation therapy for head and neck cancer: Comparison of IMRT and non‐IMRT techniques in the CT‐simulation era显示文摘 | Allen M.Chen D. GregoryFarwell QuangLuu Leon M.Chen SrinivasanVijayakumar James A.Purdy | 2010 | Head Neck2010，，11： | 1 |
| 17 | MODELING AND FORECASTING OF STOCK MARKETS UNDER A SYSTEM ADAPTATION FRAMEWORK显示文摘这份报纸采用动态反馈系统的概念明确地为金融市场,或更多的行为建模,从一个动态系统观点的证券市场。基于一个反馈改编计划,作者在由一个内部动态模型和一个适应过滤器构成的一个框架以内为一个证券市场索引的运动建模。而适应过滤器是有仪器的变量的一个变化时间的州的空间模型,产量错误模特儿作为内部模型被收养。它的输入产量行为,和内部以及外部的力量然后被识别。特殊注意被作为一个例子检验道·琼斯工业一般水准(DJIA ) 的运动说明建议框架的优点也对最近的金融危机给予了。由变化时间的诱发性测试,从经济的五个有影响的因素和情绪方面支持了作为这个框架的输入被介绍。严峻的结果证明建议框架比存在方法有好一些的预言表演,特别处于复杂经济状况。这个框架的应用也与预报市场趋势的转弯的时期的焦点被介绍。当外部力量开始在它的频率回答展出清楚的模式时,认识到一个市场趋势就要变化,作者开发一套规则认出这种清楚的模式。这些规则从美国,中国和新加坡为股票指数工作很好。 | Xiaolian ZHENG Ben M.CHEN | 2012 | Journal of Systems Science & Complexity2012，25，4： | 1 |
| 18 | Temporal features of magnetic resonance imaging and spectroscopy in non‐ketotic hyperglycemic chorea‐ballism patients显示文摘 | K. ‐H.Chang J. ‐C.Tsou S. ‐T.Chen L. ‐S.Ro R. ‐K.Lyu H. ‐S.Chang W. ‐C.Hsu C. ‐M.Chen Y. ‐R.Wu C. ‐J.Chen | 2010 | European Journal of Neurology2010，，4： | 1 |
| 19 | Comparison of nuchal and detailed morphology ultrasound examinations in early pregnancy for fetal structural abnormality screening: a randomized controlled trial显示文摘 | M.Chen C. P.Lee Y. H.Lam R. Y. K.Tang B. C. P.Chan S. F.Wong L. H. Y.Tse M. H. Y.Tang | 2008 | Ultrasound Obstet Gynecol2008，，2： | 1 |
| 20 | Generation of Uniformly Sized Alginate Microparticles for Cell Encapsulation by Using a Soft‐Lithography Approach显示文摘 | C.Qiu M.Chen H.Yan H.Wu | 2007 | Adv Mater2007，，12： | 1 |
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