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8416篇 您的检索式:作者名="Sun T"
    题名 作者 年代 出处 被引量
1荧光寿命的快速傅里叶变换拟合方法显示文摘介绍了一种利用快速傅里叶变换算法对稀土掺杂物质的荧光寿命进行数据拟合的方法。稀土掺杂物质可用来制备多种光学传感器 ,用于温度、pH值等多种参量测量领域。本方法利用快速傅里叶变换 (FFT)结果作为基础 ,从非零项的相位角的正切值得出被测的荧光寿命 ,具有速度快、误差小、不受本底干扰等一系列优点。以掺铒光纤为例 ,通过数字仿真将本方法与其它几种传统的拟合方法进行了比较。快速傅里叶变换方法的测量偏差不到Prony方法的 5 0 % ,为对数似合 (log fit)方法测量偏差的 1/6。另外 ,快速傅里叶变换方法由于不受本底噪声影响 ,可以不必在信号处理时去掉本底噪声 ,因而可以明显缩短测量时间。孙伟民 张建中 于蕾 王晶菲 相艳荣 张扬 苑立波 Grattan K TV Sun T 2004光学学报2004,24,6:13
2The enhanced X-ray Timing and Polarimetry mission—eXTP显示文摘In this paper we present the enhanced X-ray Timing and Polarimetry mission—eXTP. eXTP is a space science mission designed to study fundamental physics under extreme conditions of density, gravity and magnetism. The mission aims at determining the equation of state of matter at supra-nuclear density, measuring effects of QED, and understanding the dynamics of matter in strong-field gravity. In addition to investigating fundamental physics, eXTP will be a very powerful observatory for astrophysics that will provide observations of unprecedented quality on a variety of galactic and extragalactic objects. In particular, its wide field monitoring capabilities will be highly instrumental to detect the electro-magnetic counterparts of gravitational wave sources.The paper provides a detailed description of:(1) the technological and technical aspects, and the expected performance of the instruments of the scientific payload;(2) the elements and functions of the mission, from the spacecraft to the ground segment.ShuangNan Zhang Andrea Santangelo Marco Feroci YuPeng Xu FangJun Lu Yong Chen Hua Feng Shu Zhang Sφren Brandt Margarita Hernanz Luca Baldini Enrico Bozzo Riccardo Campana Alessandra De Rosa YongWei Dong Yuri Evangelista Vladimir Karas Norbert Meidinger Aline Meuris Kirpal Nandra Teng Pan Giovanni Pareschi Piotr Orleanski QiuShi Huang Stephane Schanne Giorgia Sironi Daniele Spiga Jiri Svoboda Gianpiero Tagliaferri Christoph Tenzer Andrea Vacchi Silvia Zane Dave Walton ZhanShan Wang Berend Winter Xin Wu Jean J.M.in't Zand Mahdi Ahangarianabhari Giovanni Ambrosi Filippo Ambrosino Marco Barbera Stefano Basso Jörg Bayer Ronaldo Bellazzini Pierluigi Bellutti Bruna Bertucci Giuseppe Bertuccio Giacomo Borghi XueLei Cao Franck Cadoux Francesco Ceraudo TianXiang Chen Yu Peng Chen Jerome Chevenez Marta Civitani Wei Cui WeiWei Cui Thomas Dauser Ettore Del Monte Sergio Di Cosimo Sebastian Diebold Victor Doroshenko Michal Dovciak YuanYuan Du Lorenzo Ducci QingMei Fan Yannick Favre Fabio Fuschino JoséLuis Ga'lvez Min Gao MingYu Ge Olivier Gevin Marco Grassi QuanYing Gu YuDong Gu DaWei Han Bin Hong Wei Hu Long Ji ShuMei Jia WeiChun Jiang Thomas Kennedy Ingo Kreykenbohm Irfan Kuvvetli Claudio Labanti Luca Latronico Gang Li MaoShun Li Xian Li Wei Li ZhengWei Li Olivier Limousin HongWei Liu XiaoJing Liu Bo Lu Tao Luo Daniele Macera Piero Malcovati Adrian Martindale Malgorzata Michalska Bin Meng Massimo Minuti Alfredo Morbidini Fabio Muleri Stephane Paltani Emanuele Perinati Antonino Picciotto Claudio Piemonte JinLu Qu Alexandre Rachevski Irina Rashevskaya Jerome Rodriguez Thomas Schanz ZhengXiang Shen LiZhi Sheng JiangBo Song LiMing Song Carmelo Sgro Liang Sun Ying Tan Phil Uttley Bo Wang DianLong Wang GuoFeng Wang Juan Wang LangPing Wang YuSa Wang Anna L.Watts XiangYang Wen Jörn Wilms ShaoLin Xiong JiaWei Yang Sheng Yang YanJi Yang Nian Yu WenDa Zhang Gianluigi Zampa Nicola Zampa Andrzej A.Zdziarski AiMei Zhang ChengMo Zhang Fan Zhang Long Zhang Tong Zhang Yi Zhang XiaoLi Zhang ZiLiang Zhang BaoSheng Zhao ShiJie Zheng Yu Peng Zhou Nicola Zorzi J.Frans Zwart 2019Science China(Physics,Mechanics & Astronomy)2019,62,2:11
3Effect of Temperature and Phase Constitution on Kinetics of La Diffusion显示文摘The diffusion of La in ε-Fe 2~3N(ε)and γ′-Fe 4N (γ′)phases produced by plasma nitriding was studied. It is found that with increasing nitriding time, the ε phase continuously decomposes into γ′ one under employed experimental conditions and compared with γ′ phase or ε+γ′ ones, the mono one ε has an impedient effect on depth of La diffusion. The growth of La layer in dual phases and mono one follows an approximate exponential law and a parabolic one, respectively, and this kinetics law does not change with increasing temperature. The effect of increasing temperature in the range of 520 to 560 ℃ on La diffusion depth is less than that of phase constitution change such as the decomposition of ε phase into γ′ one.阎牧夫 Sun Y Bell T 刘志儒 夏立芳 2002Journal of Rare Earths2002,20,4:7
4儿童期肥胖、成年期肥胖和心血管风险因子显示文摘过去30年,儿童超重或肥胖的发生率明显增加[1]。儿童期肥胖是死亡率增加的预测因子,这主要是由于儿童期肥胖可导致心血管疾病发生率增加。相关的预测研究提示"肥胖流行症"可能改变目前心血管疾病死亡率下降的趋势,使现今儿童的寿命缩短。Juonala M Magnussen CG Berenson GS Venn A Burns TL Sabin MA Srinivasan SR Daniels SR Davis PH Chen W Sun C Cheung M Viikari JS Dwyer T Raitakari OT 叶鹏 2012中华高血压杂志2012,20,1:6
5Mutation analysis of autosomal dominant polycystic kidney disease genes in Han Chinese显示文摘Zhang S Mei C Zhang D Dai B Tang B Sun T Zhao H Zhou Y Li L Wu Y Wang W Shen X Song J 2005第二军医大学学报2005,26,8:6
6Selected issues at the interface between nuclear physics and astrophysics as well as the standard model显示文摘The density functional theory (DFT) with a minimal number of parameters allows a very successful phenomenological description of ground state properties of nuclei all over the periodic table. The recent developments on the application of the covariant density functional theory as well as its extensions by the group in Beijing for a series of interests and hot topics in nuclear astrophysics and nuclear structure are reviewed, including the rapid neutron-capture process, Th/U chronometer, and isospin corrections for superallowed β transitions.MENG Jie1,2,3, NIU ZhongMing1, LIANG HaoZhao1 & SUN BaoHua2,4 1State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China 2School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China 3Department of Physics, University of Stellenbosch, Stellenbosch, South Africa 4Justus-Liebig-Universita¨t Giessen, Heinrich-Buff-Ring 14, Giessen 35392, Germany 2011Science China(Physics,Mechanics & Astronomy)2011,54,S1:5
7超重和正常体质量患者的心力衰竭新发率的荟萃分析显示文摘肥胖和新发心力衰竭之间的关系已经反复确立,关于超重与心力衰竭发展风险知之甚少。该系统回顾和荟萃分析旨在探讨超重、肥胖与新发心力衰竭发生率的关系。在该研究中,研究者从数据库创建开始到2017年6月,系统检索了MEDLINE,Medline InProcess and Other Non-Indexed Citations,EMBASE,Scopus和Cochrane对照试验中心登记册。Krittanawong C Tunhasiriwet A Wang Z Zhang H Prokop LJ Chirapongsathorn S Sun T Kitai T Tang WHW 刘青 叶鹏 2018中华高血压杂志2018,26,4:4
8Four New Compounds from Isodon Eriocalyx显示文摘Four new diterpenoids named maoecrystal Q-T (1-4) were isolated from the dried leaves of Isodon eriocalyx. Their sturctures were established by spectroscopic methods.Wang, J Lin, ZW Shingu, T Sun, HD 1997Chinese Chemical Letters1997,8,7:4
9Thermal transformation of δ-MnO_2 nanoflowers studied by in-situ TEM显示文摘在原处,在有一个加热阶段的联合的传播电子显微镜学在直到 665  的在提高的温度的热退火之上以他们的形态学和水晶的结构被采用了到阶段 MnO2 nanoflowersSUN YuGang LIU YuZi TRUONG Tu T REN Yang 2012Science China Chemistry2012,55,11:3
10Oxygen Atom Exchange Mechanism in Reaction of OH Radical with AsO显示文摘Oxygen atom exchange reaction mechanism in the reaction of OH radicals with AsO was investigated by means of the density functional theory (DFT) with 6 311++G( 3df,3pd ) and 6 311++G( d,p ) basis sets. The calculated results suggest that the reaction between OH and AsO should make the oxygen atoms exchange rapidly because the barrier to isomerization is significantly less than the HO-AsO bond dissociation energy.CHI Yu-juan 1, YU Hai tao 1,2** , FU Hong gang 1,2 HUANG Xu ri 2, LI Ze sheng 2 and SUN Chia chung 21. College of Chemistry and Chemical Engineering, Heilongjiang University, Harbin 150080, P. R. China 2. State Key Laboratory of T 2002Chemical Research in Chinese Universities2002,18,3:3
11Optical and electrical properties of Ag-MgF2 cermet films 显示文摘Sun Zhaoqi Sun Daming Ruan T N 2002Vacuum2002,68,2:3
12Pyruvate-fortified resuscitation stabilizes cardiac electrical activity and energy metabolism during hypovolemia显示文摘AIM: To test the hypothesis that fluid resuscitation with Ringer's solution enriched with pyruvate(PR), a physiological antioxidant and energy substrate, affords protection of myocardial metabolism and electrophysiological performance superior to lactated Ringer's(LR) during hypovolemia and hindlimb ischemia-reperfusion.METHODS: Male domestic goats(25-30 kg) were exsanguinated to a mean arterial pressure of 48 ± 1 mm Hg. Right hindlimb ischemia was imposed for 90 min by applying a tourniquet and femoral crossclamp. LR or PR, infused iv, delivered 0.05 mmol/kg per minute L-lactate or pyruvate, respectively, from 30 min hindlimb ischemia until 30 min post-ischemia. Time controls(TC) underwent neither hemorrhage, hindlimb ischemia nor resuscitation. Goats were sacrificed and left ventricular myocardium biopsied at 90 min fluid resuscitation(n = 6 per group) or 3.5 h later(n = 9 LR, 10 PR, 8 TC).RESULTS: Myocardial 8-isoprostane content, phosphocreatine phosphorylation potential, creatine kinase activity, and heart rate-adjusted QT interval(QTc) vari- ability were evaluated at 90 min resuscitation and 3.5 h post-resuscitation. PR sharply lowered pro-arrhythmic QTc variability vs LR(P < 0.05); this effect persisted 3.5 h post-resuscitation. PR lowered myocardial 8-isoprostane content, a product of oxidative stress, by 39 and 37% during and 3.5 h after resuscitation, respectively, vs LR. Creatine kinase activity fell 42% post-LR vs TC(P < 0.05), but was stable post-PR(P < 0.02 vs post-LR). PR doubled phosphocreatine phosphorylation potential, a measure of ATP free energy state, vs TC and LR(P < 0.05); this energetic enhancement persisted 3.5 h post-resuscitation.CONCLUSION: By augmenting myocardial energy state and protecting creatine kinase activity, pyruvateenriched resuscitation stabilized cardiac electrical function during central hypovolemia and hindlimb ischemiareperfusion.Hunaid A Gurji Daniel W White Besim Hoxha Jie Sun Albert H Olivencia-Yurvati Robert T Mallet 2013World Journal of Critical Care Medicine2013,2,4:3
13Effects of systemic administration of iptakalim on extracellular neurotransmitter levels in the striatum of unilateral 6-hydroxydopamine-lesioned rats显示文摘Wang S Hu LF Zhang Y Sun T Sun YH Liu SY Ding JH Wu J Hu G 2006中国生物学文摘2006,20,10:3
14Cryptanalysis of enhancement for simple authentication key agreement algorithm显示文摘Hsieh B T Sun H M Hwang T 2002Electronics Letters2002,38,1:2
15温度和相结构对镧扩散动力学的影响显示文摘研究了等离子体渗氮过程中La在密排六方ε Fe2~ 3N(ε)和面心立方γ′ Fe4N (γ′)双相中的扩散动力学规律。与γ′相或ε +γ′双相比较 ,发现ε相对La的扩散具有阻碍作用。一定温度下 ,随着渗氮时间的延长 ,ε相不断分解出γ′相 ;La在单相 (如γ′相 )和双相ε +γ′中的扩散深度分别呈抛物线和近似指数规律增加。提高渗氮温度 ,La扩散的深度增加 ,但其扩散动力学规律并未因此而改变 ;温度从 5 2 0℃升高至5阎牧夫 Bell T Sun Y 刘志儒 夏立芳 2001中国稀土学报2001,19,2:2
16生理过度觉醒相关失眠增加高血压风险显示文摘先前的研究显示,失眠和客观睡眠时间过短与高血压风险增加相关,并推测其潜在的机制是生理过度觉醒。在该研究中,研究者通过多次睡眠潜伏期试验(multiplesleeplatencytest,MSLT)——一种睡眠/觉醒的标准测试,探讨与生理过度觉醒相关的失眠是否与高血压风险增加相关。Li Y Vgontzas AN Fernandez-Mendoza J Bixler EO Sun Y Zhou J Ren R Li T Tang X 戴伦 练桂丽 2015中华高血压杂志2015,23,2:2
17PHASE TRANSFORMATION OF Al-Ti COATINGS ON Co-BASE SUPERALLOY DZ40M DURING HIGH TEMPERATURE OXIDATION显示文摘INTRODUCTIONThereisaseriousproblemofhightemperatureoxidationonturbinecomponents,hence,variouscoatingswithaluminidearemanufac...Liu, PS Sun, XF Jin, T Guan, HR Hu, ZQ 1998中国有色金属学会会刊:英文版1998,8,4:2
18The epoxyeicosatrienoic acid-stimulated phosphorylation of EGF-R involves the activation of metalloproteinases and the release of HB-EGF in cancer cells显示文摘Li-ming CHENG Jian-gang JIANG Zi-yong SUN Chen CHEN Ryan T DACKOR Darryl C ZELDIN Dao-wen WANG 2010Acta Pharmacologica Sinica2010,31,2:2
19Prostate volume does not provide additional predictive value to prostate health index for prostate cancer or clinically significant prostate cancer:results from a multicenter study in China显示文摘To evaluate whether prostate volume(PV)would provide additional predictive utility to the prostate health index(phi)for predicting prostate cancer(PCa)or clinically significant prostate cancer,we designed a prospective,observational multicenter study in two prostate biopsy cohorts.Cohort 1 included 595 patients from three medical centers from 2012 to 2013,and Cohort 2 included 1025 patients from four medical centers from 2013 to 2014.Area under the receiver operating characteristic curves(AUC)and logistic regression models were used to evaluate the predictive performance of PV-based derivatives and models.Linear regression analysis showed that both total prostate-specific antigen(tPSA)and free PSA(fPSA)were significantly correlated with PV(all P<0.05).[-2]proPSA(p2PSA)was significantly correlated with PV in Cohort 2(P<0.001)but not in Cohort 1(P=0.309),while no significant association was observed between phi and PV.When combining phi with PV,phi density(PHID)and another phi derivative(PHIV,calculated as phi/PV°5)did not outperform phi for predicting PCa or clinically significant PCa in either Cohort 1 or Cohort 2.Logistic regression analysis also showed that phi and PV were independent predictors for both PCa and clinically significant PCa(all P<0.05);however,PV did not provide additional predictive value to phi when combining these derivatives in a regression model(all models vs phi were not statistically significant,all P>0.05).In conclusion,PV-based derivatives(both PHIV and PHID)and models incorporating PV did not improve the predictive abilities of phi for either PCa or clinically significant PCa.Da Huang Yi-Shuo Wu Ding-Wei Ye Jun Qi Fang Liu Brian T Helfand Siqun L Zheng Qiang Ding Dan-Feng Xu Rong Na Jian-Feng Xu Ying-Hao Sun 2020Asian Journal of Andrology2020,22,5:2
20Cancer Genome Scanning in Plasma: Detection of Tumor-Associated Copy Number Aberrations, Single-Nucleotide Variants, and Tumoral Heterogeneity by Massively Parallel Sequencing显示文摘Chan K C Allen Jiang Peiyong Zheng Yama W L Liao Gary J W Sun Hao Wong John Siu Shing Shun N Chan Wing C Chan Stephen L Chan Anthony T C Lai Paul B S Chiu Rossa W K Lo Y M D 2013Clinical Chemistry2013,,1:2
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