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通过构象诱导电感耦合机制光可逆调控有机场效应晶体管的性能(英文)

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物理化学学报 2010年第7期26卷 1941-1946页

作者：申茜甘霖刘松曹阳王振兴惠静姝郭雪峰北京大学化学与分子工程学院、分子动态与稳态结构国家重点实验室、北京分子科学国家实验室北京100871

将有机场效应晶体管用于传感和开关实际应用的主要阻碍之一是其破坏性传感机制产生的一系列问题.这里我们报道了一种智能的系统,用光致变色分子螺吡喃(SP)和聚甲基丙烯酸甲酯(PMMA)结合作为栅介电材料,得到的器件能以一种无损的方式,通... 详细信息

将有机场效应晶体管用于传感和开关实际应用的主要阻碍之一是其破坏性传感机制产生的一系列问题.这里我们报道了一种智能的系统,用光致变色分子螺吡喃(SP)和聚甲基丙烯酸甲酯(PMMA)结合作为栅介电材料,得到的器件能以一种无损的方式,通过光可逆调控器件的导电性能.当螺吡喃分子发生可逆的光学异构时,器件的电容和导电性随之发生显著而可逆的变化.这种构象诱导电感耦合的作用机理提供了一种制备功能器件的新方法,可以推广为利用其它刺激响应型分子来制备特定功能器件的普适性方法.

关键词：光异构化光致变色分子螺吡喃薄膜晶体管栅介电质

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一般随机富里叶级数(英文)

数学杂志 2002年第4期22卷 397-401页

作者：田范基湖北大学数学系 430062

人们通常是在随机系数对称条件下 ,研究随机富里叶级数的 ,例文献 [1 ] .本文不要对称性假设 ,研究一般随机富里叶级数一些性质。

关键词：一般随机富里叶级数性质泊松和 Fejer和

Statistical modeling of ionospheric foF2 over Wuhan

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Statistical modeling of ionospheric foF2 over Wuhan

p-ADIC亚纯函数在截断重级下的一个定理(英文)

中国科学院地质与地球物理研究所2004学术年会

作者： Libo Liu,Weixing Wan,and Baiqi Ning Institute of Geology and Geophysics.Chinese Academy of sciences,Beijing.china

[1]Half-hourly values of the critical frequency of the ionospheric F region,foF2, obtained at Wuhan Ionospheric Observatory(geographic 114.4°E,30.6°N;45.2°dip), china,during the period fiom 195 7 to 1991 have been used to investigate the solar activity dependence of the monthly median foF2,and to construct single-station models ushing Fourier expansion and cubic-B splines *** climatological models incorporate local standard time,month,and solar cycle variations of *** analyses show that,over Wuhan,the monthly median foF2 has a significantly nonlinear dependence on the current and historical solar *** the monthly median F107 in the prior month can significantly improve the accuracy of our *** the complex influence of solar activities is approximately expressed by a general nonlinear function. Our models are in good agreement with observations,with standard deviations between about 0.26 to 0.58 *** contrast,the IRI model tends to overestimate foF2 over Wuhan and has a lower accuracy with standard deviations between about 0.5 to 1 *** TERMS:2447 Ionosphere:Modeling and forecasting;2479 Ionosphere:Solar radiation and cosmic ray effects;6929 Radio science:Ionospheric physics(2409);KEYWORDS:ionospheric foF2,F107, solar cycle variation,monthly median model

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数学杂志 2005年第1期25卷 21-24页

作者：王新利上海理工大学理学院上海200093

本文研究 p- adic亚纯函数在截断重级下分担两个公共值集的唯一性问题 ,得到了一个相应的定理 .定理的证明主要利用 p-

关键词： p-adic亚纯函数公共值集截断重级

DNMT3A genetic polymorphisms predict disease prognosis in R882 mutation negative AML patients

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中国药理学与毒理学杂志 2016年第10期30卷 1067-1067页

作者： YUAN Xiao-qing ZHNG Dao-yu YAN Han YANG Yong-long ZHU Ke-wei ZHOU Hong-hao ZENG Hui CHEN Xiao-ping Department of Clinical Pharmacology Xiangya HospitalCentral South University Institute of Clinical Pharmacology Central South University Hunan Key Laboratory of Pharmacogenetics Department of Pharmacy Haikou People' s Hospital and Affiliated Haikou Hospital of Xiangya Medical SchoolCentral South University Department of Hematology Xiangya Hospital Central South University Hunan Province Cooperation Innovation Center for Molecular Target New Drug Study

OBJECTIVE To evaluate the association between DNA(cytosine-5)-methyltransferase 3 alpha(DNMT3A)genetic polymorphisms and the disease prognosis of R882 mutation negative acute myeloid leukemia(AML)*** DNMT3A 11 SNPs(rs11695471,rs2289195,rs734693,rs2276598,rs1465825,rs7590760,rs13401241,rs7581217,rs749131,rs41284843 and rs7560488)were genotyped using a MassA RRAY platform or Sanger sequencing method in 317 diagnostic non-FABM3 AML patients without R882 mutation from southern *** patients underwent combined chemotherapy with cytarabine and *** survival(OS)and Disease-free survival(DFS)as major end points were *** prognostic(median OS and DFS)evaluations were performed by Kaplan-Meier curve and Cox′s proportional hazard *** We found that the rs2289195 G>A SNP could act as a poor prognostic predictor independently(HR=0.442,P=0.035 for OS;HR=0.431,P=0.031 for DFS),while the rs1465825 T>C SNP and rs7590760 G>C SNP appeared to predict independently poor prognosis for both OS(HR=1.453,P=0.037 for rs1465825;HR=1.584,P=0.063 for rs7590760)and DFS(HR=1.459,P=0.057 for rs1465825;HR=1.965,P=0.017for rs7590760).However,no significant associations between other DNMT3A polymorphisms and prognosis(OS in conjunction with DFS)were *** DNMT3A polymorphisms may be potential predictive markers for AML prognosis in R882 mutation negative patients,which might improve prognostic stratification of AML.

关键词： DNMT3A polymorphism AML prognosis

Planetary wave oscillations in sporadic E layer occurrence at Wuhan

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Planetary wave oscillations in sporadic E layer occurrence a...