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The mobility improvement of organic thin film transistors by introducing Zn O-nanrods as an zctive layer

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Science China(Technological Sciences) 2016年第5期59卷 714-720页

作者： XIE Tao XIE Guang Zhong DU hong Fei YE Zong Biao su Yuan Jie CHEN Yu yan School of Optoelectronic Information State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China (UESTC)

Organic thin film transistors(OTFTs) based on poly(3-hexylthiophene)(P3HT)/Zinc oxide(ZnO) nanorods composite films as the active layers were prepared by spray-coating process. The OTFTs with P3HT/ZnO-nanorods composite films owned higher carriers mobility than the OTFT based on pure P3 HT. It can be found that the mobility of OTFTs increased by 135% due to ZnO-nanorods doping. This was attributed to the improvement of the P3 HT crystallinity and the optimization of polymer chains orientation. Meanwhile, because of the distinction of work function between P3 HT and ZnO, the majority carriers would accumulate on either side of the P3HT-ZnO interface which benefited carrier transfer. The influence on the mobility of composite film was studied. In addition, the threshold voltage of devices changed positively with the increase of ZnO-nanorods due to the decrease of electrostatic potential for P3HT/ZnO-nanorods composite films. The effect could be explained by the energy level theory of semiconductor.

关键词： P3HT ZnO-nanorods composite film OTFT

Complement use of Chinese herbal medicine after percutaneous coronary intervention: a prospective observational study

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Journal of Geriatric Cardiology 2022年第9期19卷 696-704页

作者： Si-Yu yan Wei-Xian yanG Pei-Pei LU Xuan-Tong GUO Cai-Xia GUO yan-Ni su Li-hong MA Chinese Academy of Medical Sciences&Peking Union Medical College Fuwai Hospital Xicheng DistrictBeijingChina

BACKGROUND Chinese herbal medicine is widely used as a complement or alternative treatment in coronary artery disease(CAD)patients after percutaneous coronary intervention(PCI)in *** compared the incidence of the major adverse cardi-ovascular event(MACE)of CAD patients with or without the complement use of Chinese herbal medicine after *** In this prospective,observational study that was conducted from September 2016 to August 2019 in Fuwai Hospital(China),we followed up consecutive patients who received PCI treatment for two *** was defined as the composite all-cause mortality,revascularization,and myocardial infarction(MI)and was compared between those using(integrative medicine group)or those not using Chinese herbal medicine as an additional treatment to standard Western medicine,with unadjusted(Kaplan-Meier curves)and risk-adjusted(multivariable Cox regression)*** A total of 5942 patients after PCI were enrolled in this study,and 5453 patients were included in the final analysis(4189[76.8%]male;mean age:61.9±9.9%years).During the follow-ups,2932(53.8%)patients used only Western medicine while 2521(46.2%)patients had used Chinese herbal medicine as an additional treatment to standard Western *** in the integrative medicine group(IM group)were older than the Western medicine group(WM group),had more females and less pre-vious *** incidence of MACE was 15.3%(449/2932)in WM group and 11.54%(291/2521)in IM *** regression ana-lysis showed that cumulative incidence of MACE was 27%lower in patients of the IM group than those in WM group(hazard ra-tio=0.73;95%CI:0.63-0.85;P<0.0001).CONCLUSIONS For CAD patients after PCI treatment,complement use of Chinese herbal medicine is associated with a lower 2-year MACE *** prospective studies are warranted to provide higher levels of benefit evidence in these pa-tients.

关键词： herbal prospective coronary

Modulation of firing activity by endogenous GABA_A receptors in the globus pallidus of MPTP-treated parkinsonian mice

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Neuroscience Bulletin 2013年第6期29卷 701-707页

作者： Xin-Yi Chen yan Xue Hua Wang su-hong Zhu Xiao-Meng Hao Lei Chen Clinical Medicine 2009 Shandong University Medical School Department of Physiology Qingdao University Department of Physiology Binzhou Medical College

The globus pallidus in rodents,equivalent to the external segment of the globus pallidus in primates,plays an important role in movement *** studies have shown abundant γ-aminobutyric acid（GABA）ergic innervation and GABAA receptors in the globus *** this study,we investigated the effects of endogenous GABAA receptors on the spontaneous firing activity of pallidal neurons in both normal and MPTP-treated mice using multi-barrel electrodes extracellular recordings in *** found that in normal mice,pressure ejection of 0.1 mmol/L gabazine,a specific GABA A receptor antagonist,increased the spontaneous firing rate of globus pallidus neurons by 27.6 ± 5.6%.Furthermore,in MPTP mice（14 days after MPTP treatment）,0.1 mmol/L gabazine increased the firing rates by 51.0 ± 7.9%,significantly greater than in normal *** results suggest that endogenous GABAA receptors modulate the activity of globus pallidus *** present findings may provide a rationale for investigations into the potential role of GABAA receptors in Parkinson’s disease.

关键词： globus pallidus GABA A receptor Parkinson’s disease single unit recording

Handling Uncertainty in Human Cognitive Reliability Method for Safety Assessment Based on DSET

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Computer Modeling in Engineering & Sciences 2022年第7期132卷 201-214页

作者： Yujun su Xianghao Gao hong Qian Xiaoyan su State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment Shenzhen518172China School of Automation Engineering Shanghai University of Electric PowerShanghai200090China

Human Reliability Analysis(HRA)is an important part in safety assessment of a large complex *** Cognitive Reliability(HCR)model is a method of evaluating the probability that operators fail to complete during diagnostic decision making within a limited time,which is widely used in *** the application of this method,cognitive patterns of humans are required to be considered and classified,and this process often relies on the evaluation opinions of experts which is highly subjective and *** to effectively express and process this uncertain and subjective information plays a critical role in improving the accuracy and applicability of *** this paper,a new model was proposed to deal with the uncertain information which exists in the processes of cognitive pattern classification in ***,an evaluation panel was constructed based on expert opinions and processing including setting corresponding anchor points and qualitative indicators of different cognitive patterns,and mapping them to fuzzy numbers and unit ***,based on the evaluation panel,different analysts judge the cognitive pattern types of actual specific events and provide the level of confidence he or she has in the ***,the evaluation opinions of multiple analysts were expressed and fused based on the Dempster-Shafer Evidence Theory(DSET),and the fused results were applied to the HCR model to obtain the Human Error Probability(HEP).A case study was used to demonstrate the procedure and effectiveness of the proposed method.

关键词： Safety assessment human reliability analysis human cognitive reliability human error probability DempsterShafer evidence theory

Microstructure and properties of mullite-based porous ceramics produced from coal fly ash with added Al_2O_3

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International Journal of Minerals,Metallurgy and Materials 2017年第3期24卷 309-315页

作者： Jian-bin Zhu hong yan Department of Materials Processing Engineering School of Mechanical Electrical EngineeringNanchang University School of Mechanical Electrical Engineering Nanchang Institute of Technology

Using coal fly ash slurry samples supplemented with different amounts of Al2O3, we fabricated mullite-based porous ceramics via a dipping-polymer-replica approach, which is a popular method suitable for industrial application. The microstructure, phase composition, and compressive strength of the sintered samples were investigated. Mullite was identified in all of the prepared materials by X-ray diffraction analysis. The microstructure and compressive strength were strongly influenced by the content of Al2O3. As the Al/Si mole ratio in the starting materials was increased from 0.84 to 2.40, the amount of amorphous phases in the sintered microstructure decreased and the compressive strength of the sintered samples increased. A further increase in the Al2O3content resulted in a decrease in the compressive strength of the sintered samples. The mullite-based porous ceramic with an Al/Si molar ratio of 2.40 exhibited the highest compressive strength and the greatest shrinkage among the investigated samples prepared using coal fly ash as the main starting material. © 2017, University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg.

关键词： Aluminum Amorphous materials Ceramic materials Coal Coal ash Fly ash Microstructure Mullite Porous materials Silicate minerals Sintering Strength of materials X ray diffraction analysis

Mobile device-based Reporting System for Sichuan Earthquake-affected Areas Infectious Disease Reporting in China

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Biomedical and Environmental Sciences 2012年第6期25卷 724-729页

作者： GUO yan su Xue Mei National Center for Public Health surveillance and Information Service Chinese Center for Disease Control andPrevention Beijing 102206 China

Objective To describe the experience of the China CDC in rebuilding reporting capacity and response to the Sichuan earthquake through use of mobile phones. Methods Software engineering and business modeling are used to design and develop a cell phone-based reporting system. The PDA-based system used by the Field Adapted survey Toolkit （FAST） was deployed Results Approximately one week after deployment of the mobile phone-based reporting system, the cumulative reporting rate reached the same level （81%） as the same period in 2007. In the Sichuan provincial pilot investigation for infectious disease, 1339 records were collected using PDAs developed and deployed by FAST. Conclusion The mobile-based system is recognized as a quick and effective response solution to this public health challenge. Our experience suggests that mobile-based data collection tools provide faster, cleaner, standardized, and shareable data for critical decision making. This system could be adapted as complementary to national infectious disease reporting systems after natural disaster occurrences.

关键词： Mobile Earthquake surveillances

Disjoint Cliques in Claw-free Graphs

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Acta Mathematicae Applicatae Sinica 2018年第1期34卷 19-34页

作者： su-yun JIANG Jin yan School of Mathematics Shandong University

A graph is said to be claw-free if it does not contain an induced subgraph isomorphic to K_（1,3）. Let s and k be two integers with 0≤s≤k and let G be a claw-free graph of order n. In this paper, we investigate clique partition problems in claw-free graphs. It is proved that if n≥3 s ＋4（k-s） and d（x）＋ d（y）≥n-2 s ＋2 k ＋1 for any pair of non-adjacent vertices x, y of G, then G contains s disjoint K3 s and k-s disjoint K4 s such that all of them are disjoint. Moreover, the degree condition is sharp in some cases.

关键词： claw-free graphs disjoint clique degree condition

A New RFID Anti-collision Algorithm Based on the Q-Ary Search Scheme

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Chinese Journal of Electronics 2015年第4期24卷 679-683页

作者： su Jian WEN Guangjun hong Danfeng School of Communication and Information Engineering University of Electronic Science and Technology of China College of Information Engineering Qingdao University

Deterministic tree-based algorithms are mostly used to guarantee that all the tags in the reader field are successfully identified, and to achieve the best performance. Through an analysis of the deficiencies of existing tree-based algorithms, a Q-ary search algorithm was proposed. The Q-ary search(QAS) algorithm introduced a bit encoding mechanism of tag ID by which the multibit collision arbitration was implemented. According to the encoding mechanism, the collision cycle was reduced. The theoretical analysis and simulation results showed that the proposed MS algorithm overcame the shortcoming of existing tree-based algorithms and exhibited good performance during identification.

关键词： Radio frequency identification(RFID) Anti-collision Encoding Energy efficiency

光谱辐射照度国际关键比对装置、方法与结果分析

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光谱学与光谱分析 2025年第1期45卷 1-7页

作者：代彩红王彦飞李玲吴志峰谢一航中国计量科学研究院光学与激光计量科学研究所北京100029

基于高温黑体辐射源和双光栅光谱辐射比较测量系统,中国计量科学研究院自主研制了新一代光谱辐射照度国家基准装置,波长范围覆盖230~2550 nm,以一组稳定的卤钨灯作为副基准灯组,保存和传递光谱辐射照度量值。黑体的温度溯源至铂-碳Pt-C... 详细信息

基于高温黑体辐射源和双光栅光谱辐射比较测量系统,中国计量科学研究院自主研制了新一代光谱辐射照度国家基准装置,波长范围覆盖230~2550 nm,以一组稳定的卤钨灯作为副基准灯组,保存和传递光谱辐射照度量值。黑体的温度溯源至铂-碳Pt-C和铼-碳Re-C共晶点黑体,在3021 K采用钨碳-碳WC-C共晶点黑体进行验证。采用新基准装置,2017年-2019年NIM参加国际计量局组织的光谱辐射照度国际关键比对CCPR-K1.a,比对由全俄光学物理学测量研究院(VNIIOFI)主导,共有12个实验室参加。比对结果表明:除少数实验室外,在250~290、300~1300、1500~2500 nm波长范围,各参比实验室之间的一致性分别为±2.0%、±1.0%和±2.0%。在紫外、可见和近红外波段,NIM与国际比对参考值的平均相对偏差分别为0.13%、0.28%和0.15%。在250~2500 nm全波段,NIM与国际比对参考值的平均相对偏差为0.17%,与2004年平均相对偏差0.9%相比,测量能力提升显著。

关键词：光谱辐射照度国际比对高温黑体测量不确定度国家基准