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    题名 作者 年代 出处 被引量
1The differences and similarities between two-sample t-test and paired t-test显示文摘临床研究中经常遇到比较实验组和对照组之间的结果。双样本t检验(又称为独立样本t检验)和配对t检验可能是运用于比较两个样本之间均值的最广泛的统计方法。然而,这两种方法的运用会产生混淆,从而导致使用不当。本文中,我们讨论了这两种t检验之间的异同性,并运用三个范例来阐述双样本t检验和配对t检验的计算过程。徐曼菲 Drew FRALICK Julia Z.ZHENG Bokai Wang Xin M.TU Changyong FENG 2017上海精神医学2017,29,3:8
2Coarsening Behavior of Gamma Prime Precipitates in a Nickel Based Single Crystal Superalloy显示文摘The γ/γ' microstructural evolution in a nickel based single crystal superalloy during load-free thermal exposure at 900 ℃ has been further investigated in this paper.The growth characteristics of γ' precipitates were discussed in detail.The generation of interfacial dislocations would accelerate the rate of coalescence in the dendrite arms.The average sizes of precipitates were used to compare interface with diffusion controlled growth mechanism and no mechanism seems obviously dominant,although the square rate law gives slightly better fit.The coarsening behavior may be controlled by diffusion through the ragged interface between the γ' precipitate and the γ matrix.S.Tang L.K.Ning T.Z.Xin Z.Zheng 2016Journal of Materials Science & Technology2016,32,2:7
3单因素与多因素逻辑回归的不一致性(英文)显示文摘逻辑回归是研究协变量对二元结果影响的一种常用的统计方法。它已被广泛应用于临床试验和观察性研究。然而,单因素回归得到的结果和多元逻辑回归得到的结果往往是相互矛盾的。在多元回归中可能对结果会显示出非常强烈的影响的一个协变量在单因素回归中可能不会,反之亦然。这些事实在生物医学研究中并没有引起足够的重视。误用逻辑回归在医学出版物中非常普遍。在本文中,我们研究了单因素和多因素逻辑回归分析的不一致性,并在多元逻辑回归分析的模型部分中给出建议。Hongyue WANG Jing PENG Bokai WANG Xiang LU Julia Z.ZHENG Kejia WANG Xin M.TU Changyong FENG 2017上海精神医学2017,29,2:5
4TiS2-based saturable absorber for ultrafast fiber lasers显示文摘We fabricate titanium disulfide(TiS2) using a liquid exfoliation method and subsequently a TiS2-based device by optically depositing the TiS2 material onto the microfiber. This device exhibits a strong nonlinear saturable absorption property with an optical modulation depth of 8.3% at 1560 nm. With the implementation of this all-fiber TiS2-based saturable absorber, we demonstrate that both mode-locking and Q-switching operation can be obtained in a turn-key all-fiber erbium-doped laser cavity. Our findings constitute the first example, to the best of our knowledge, of a TiS2-based saturable absorber for ultrashort pulse generation and highlight the great potential of such devices in two-dimensional nanomaterials-related photonics.X. ZHU S. CHEN M. ZHANG L. CHEN Q. Wu J. ZHAO Q.JIANG Z.ZHENG H.ZHANG 2018Photonics Research2018,6,10:4
5Up‐Regulation of OsBIHD1, a Rice Gene Encoding BELL Homeodomain Transcriptional Factor, in Disease Resistance Responses显示文摘H.Luo F.Song R. M.Goodman Z.Zheng 2008Plant Biology2008,,5:1
6Mesostructured Silica Chemically Doped with Ru显示文摘B.Lei B.Li H.Zhang S.Lu Z.Zheng W.Li Y.Wang 2006Mater2006,,14:1
7AMPA receptor trafficking and learning显示文摘J.Keifer Z.Zheng 2010European Journal of Neuroscience2010,,2:1
8赢率-医学研究中一个直观而易于解释的综合结果(英文)显示文摘对于医学研究中的多个结果,研究人员总是需要选择是否使用一个综合性结果(综合多个结果后所得的)作为主要结果。在本文中,我们回顾了治疗效果的一个新测量方式-赢率,它可以很容易地用于具有多个优先级结果的研究中。并且,我们在这块领域也提出了一些研究课题。hongyue wang jing peng juila z.zheng bokai wang xiang lu chongshu chen xin m.tu changyong feng 2017上海精神医学2017,29,1:1
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