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Organic optoelectronics:materials,devices and applications

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光学精密工程 2005年第5期13卷 525-534页

作者： IAU yi CUI tian-hong Department of Mechanical Engineering University of Minnesota 111 Church Street SE Minneapolis MN 55455 USA

The interest in organic materials for optoelectronic devices has been growing rapidly in the last two decades. This growth has been propelled by the exciting advances in organic thin films for displays, low-cost electronic circuits, etc. An increasing number of products employing organic electronic devices have become commercialized, which has stimulated the age of organic optoelectronics. This paper reviews the recent progress in organic optoelectronic technology. First, organic light emitting electroluminescent materials are introduced. Next, the three kinds of most important organic optoelectronic devices are summarized, including light emitting diode, organic photovoltaic cell, and photodetectors. The various applications of these devices are also reviewed and discussed in detail. Finally, the market and future development of optoelectronic devices are also demonstrated.

关键词：光电子学 OLED PPV 显示器电路

川芎嗪注射液联合化疗对晚期肝癌患者IL-1、IL-4及TGF-β的影响

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中国生化药物杂志 2015年第12期35卷 153-154,157页

作者：徐嫣苓李卓栋唐凤艳田义洲陈文斌舟山医院检验科浙江舟山316000 舟山医院中医骨伤院区肝胆科浙江舟山316000 浙江省第一医院肛肠外科浙江杭州310003

目的观察研究川芎嗪注射液联合化疗对晚期肝癌患者常见免疫指标的影响。方法选取2013年1月~2015年1月舟山医院肝胆科收诊疗的肝癌晚期患者80例,按随机数字表法分为观察组及对照组各40例,对照组患者仅给予化疗常规治疗,观察组在对照组常... 详细信息

目的观察研究川芎嗪注射液联合化疗对晚期肝癌患者常见免疫指标的影响。方法选取2013年1月~2015年1月舟山医院肝胆科收诊疗的肝癌晚期患者80例,按随机数字表法分为观察组及对照组各40例,对照组患者仅给予化疗常规治疗,观察组在对照组常规治疗基础上加用川芎嗪注射液治疗,记录并分析治疗前后2组患者白细胞介素-1（interleukin-1,IL-1）、IL-4及转化生长因子-β（transforming growth factor beta,TGF-β）变化。结果治疗前2组患者IL-1、IL-4、TGF-β水平差异无统计学意义,治疗后观察组患者IL-1、IL-4、TGF-β水平显著低于对照组[分别为（41.4±11.8）vs（76.0±12.2）ng/L、（118.5±39.9）vs（223.0±47.3）ng/L、（6.7±3.2）vs（11.7±2.6）ng/m L,均P〈0.05]。结论川芎嗪注射液联合化疗在改善晚期肝癌相关免疫学指标上效果肯定、确切,未明显增加患者副作用。

关键词：川芎嗪注射液肝癌晚期联合化疗免疫学指标

Microstructure characteristics of segregation zone in 17-4PH stainless steel piston rod

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Journal of Iron and Steel Research International 2017年第7期24卷 718-723页

作者： Jia-long tian Wei Wang Wei Yan zhou-hua Jiang yi-yin Shan Ke Yang School of Materials and Metallurgy Northeastern University Institute of Metal Research Chinese Academy of Sciences Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of Sciences

The segregation of Cu and Ni in a 17-4PH stainless steel piston rod has been confirmed to be responsible for the cracking after heat *** investigation showed that the segregation zone was composed of three layers,namely the fine grain martensitic layer,the coarse grain martensitic layer and the coarse grain austenitic layer from the matrix to the crack *** button ingots with the same chemical compositions as those three layers have been prepared to evaluate the grain size distribution,microstructure and mechanical *** effects of Cu and Ni segregation on the microstructures of those three layers have been explored by thermodynamic *** on the microstructure and mechanical properties results,an intensive understanding of the cracking in the segregation zone was therefore reached.

关键词： 17-4PH stainless steel Piston rod Segregation Thermodynamic calculation Crack

Ultrasonic enhancement of persulfate oxidation system governs emerging pollutants decontamination

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Green Energy & Environment 2024年第11期9卷 1666-1678页

作者： Yanpan Li Yanbo zhou yi zhou National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery State Environmental Protection Key Laboratory of Environmental Risk Assessment and Control on Chemical ProcessEast China University of Science and Technology130 Meilong RoadShanghai200237China Shanghai Engineering Research Center for Multi-media Environmental Catalysis and Resource Utilization East China University of Science and Technology130 Meilong RoadShanghai200237China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092China

Emerging contaminants (ECs) are widely present in aquatic environments, posing potential risks to both ecosystems and human health. Theultrasound-assisted persulfate oxidation process has attracted considerable attention in the degradation of ECs due to its ability to generate bothsulfate radicals and cavitation effects, enhancing degradation effects. In this paper, the principle of ultrasonic synergistic Fenton-like oxidationsystem for degrading organic pollutants was reviewed, divided into homogeneous system, non-homogeneous system, and single-atom system toexplore the synergistic effect of ultrasound-enhanced persulfate technology in three aspects, and the effects of environmental factors such asultrasonic frequency and power, system pH, temperature, and initial oxidant concentration on the system's decontamination performance werediscussed. Finally, future research on ultrasonically activated persulfate technology is summarized and prospected.

关键词： Ultrasound Persulfate Emerging contaminants Reaction mechanism Synergistic effects

TPII:tracking personally identifiable information via user behaviors in HTTP traffic

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Frontiers of Computer Science 2020年第3期14卷 175-187页

作者： yi LIU tian SONG Lejian LIAO School of Computer Science Beijing Institute of TechnologyBeijing 100081China Network Information Center Yan'an UniversityYan'an 716000China School of Computer ScienceBeijing Institute of TechnologyBeijing 100081China

It is widely common that mobile applications collect non-critical personally identifiable information(PII)from users'devices to the cloud by application service providers(ASPs)in a positive manner to provide precise and recommending ***,Internet service providers(ISPs)or local network providers also have strong requirements to collect PIIs for finer-grained traffic control and security ***,it is a challenge to locate PIIs accurately in the massive data of network traffic just like looking a needle in a *** this paper,we address this challenge by presenting an efficient and light-weight approach,namely TPII,which can locate and track PIIs from the HTTP layer rebuilt from raw network *** approach only collects three features from HTTP fields as users'behaviors and then establishes a tree-based decision model to dig PIIs efficiently and *** any priori knowledge,TPII can identify any types of PIIs from any mobile applications,which has a broad vision of *** evaluate the proposed approach on a real dataset collected from a campus network with more than 13k *** experimental results show that the precision and recall of TPII are 91.72%and 94.51%respectively and a parallel implementation of TPII can achieve 213 million records digging and labelling within one hour,reaching near to support 1Gbps wirespeed inspection in *** approach provides network service providers a practical way to collect PIIs for better services.

关键词： network traffic analysis personally identifiable information privacy leakage mobile applications HTTP

Observer-based multi-objective parametric design for spacecraft with super flexible netted antennas

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Science China(Information Sciences) 2020年第7期63卷 161-181页

作者： Guang-Ren DUAN tian-yi ZHAO Center for Control Theory and Guidance Technology Harbin Institute of Technology

A multi-objective parametric design method that based on the robust observer is proposed for the attitude control of satellites with super flexible netted antennas. First, a parametric observer-based controller is obtained based on the eigen-structure assignment theory. The closed-loop poles are assigned to desired positions or regions, and full degrees of freedom of the design, which are characterized by a set of parameters, are preserved under the proposed control law. Second, the obtained parameters are comprehensively optimized to make the closed-loop system have lower eigenvalue sensitivity, a smaller control gain, and stronger tolerance to high-order unmodeled dynamics and external disturbances. Finally, comparative simulations are carried out based on practical engineering parameters of a satellite in order to verify the effect of the proposed method, and also to show their superiority over the traditional proportional-integral-derivative(PID) controller with filters and the traditional dynamic compensators.

关键词： parametric design of control systems multi-objective designs robust observers super flexible spacecraft parameter perturbations high-order flexible modes

Static tainting extraction approach based on information flow graph for personally identifiable information

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Science China(Information Sciences) 2020年第3期63卷 156-172页

作者： yi LIU Lejian LIAO tian SONG School of Computer Science and Technology Beijing Institute of Technology College of Mathematics and Computer Science Yan'an University

Personally identifiable information(PII) is widely used for many aspects such as network privacy leak detection, network forensics, and user portraits. Internet service providers(ISPs) and administrators are usually concerned with whether PII has been extracted during the network transmission process. However,most studies have focused on the extractions occurring on the client side and server side. This study proposes a static tainting extraction approach that automatically extracts PII from large-scale network traffic without requiring any manual work and feedback on the ISP-level network traffic. The proposed approach does not deploy any additional applications on the client side. The information flow graph is drawn via a tainting process that involves two steps: inter-domain routing and intra-domain infection that contains a constraint function(CF) to limit the "over-tainting". Compared with the existing semantic-based approach that uses network traffic from the ISP, the proposed approach performs better, with 92.37% precision and 94.04%recall. Furthermore, three methods that reduce the computing time and the memory overhead are presented herein. The number of rounds is reduced to 0.0883%, and the execution time overhead is reduced to 0.0153%of the original approach.

关键词： personally identifiable information network privacy leak detection static tainting network traffic analysis information flow graph inter-domain routing intra-domain infection constraint function

In the Atmosphere and Oceanic Fluids:Scaling Transformations,Bilinear Forms,Bäcklund Transformations and Solitons for A Generalized Variable-Coefficient Korteweg-de Vries-Modified Korteweg-de Vries Equation

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China Ocean Engineering 2021年第4期35卷 518-530页

作者： GAO Xin-yi GUO Yong-jiang SHAN Wen-rui zhou tian-yu WANG Meng YANGDan-yu State Key Laboratory of Information Photonics and Optical Communications and School of ScienceBeijing University of Posts and TelecommunicationsBeijing 100876China

The atmosphere is an evolutionary agent essential to the shaping of a planet,while in oceanic science and daily life,liquids are commonly *** this paper,we investigate a generalized variable-coefficient Korteweg-de Vriesmodified Korteweg-de Vries equation for the atmosphere,oceanic fluids and *** symbolic computation,beginning with a presumption,we work out certain scaling transformations,bilinear forms through the binary Bell polynomials and our scaling transformations,N solitons(with N being a positive integer)via the aforementioned bilinear forms and bilinear auto-Bäcklund transformations through the Hirota method with some *** addition,Painlevé-type auto-Bäcklund transformations with some solitons are symbolically computed *** dependences and constraints on the variable/constant coefficients are discussed,while those coefficients correspond to the quadratic-nonlinear,cubic-nonlinear,dispersive,dissipative and line-damping effects in the atmosphere,oceanic fluids and plasmas.

关键词： atmosphere oceanic fluids plasmas generalized variable-coefficient Korteweg-de Vries-modified Korteweg-de Vries equation scaling transformations bilinear forms N solitons auto-Bäcklund transformations

LOCAL EXISTENCE THEOREM FOR FIRST ORDER SEMILINEAR HYPERBOLIC SYSTEMS IN SEVERAL SPACE DIMENSIONS

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Chinese Annals of Mathematics,Series B 1997年第2期18卷 223-232页

作者： zhou yi Institut of Mathematics Fudan UniversityShanghai 200433China.

This paper studies first order semilinear hyperbolic systems in n(n≥2)space *** the hypothesis that the system satisfies so called`null condition',the local well posedness for its Cauchy problem with initial data in ... 详细信息

关键词： Semilinear hyperbolic systems Local well posedness Cauchy problem