维普中文期刊产品整合服务
16篇 您的检索式:作者名="Liuwen"
    题名 作者 年代 出处 被引量
1Some Strong Deviation Theorems forRandom Sum of Discrete Stochastic Sequence显示文摘In this paper, the notion of limit random logarithmic likelihood ratio of stochastic se-quences,as a measure of 'dissimilarity' between their joint distributions and the product of theirmarginals,is introduced. Construct a. s. convergence supermartingale by means of truncation methodand under suitable restrict Chung-Teicher type conditions,some strong deviation theorems for arbi-trary discrete stochastic sequence are obtained.WANGZhong-zhi LIUWen 2004应用数学2004,17,2:4
2Runoff and watererosion on road side-slopes:Effects of rainfallcharacteristics and slope length显示文摘Xu Xianli Liuwen Kong Yaping 2009TransportationResearch Part D:Transport and Environment2009,14,7:1
3Relativeentropydensitiesandaclassoflimittheoremsofthesequencesofm-valuedrandomvariables显示文摘LiuWen 1990TheAnnalsofprobability1990,18,82:1
4Anextensionofatheoremongamblingsestemstoarbitrarybinaryrandomvariables显示文摘LiuWen WangZhongzhi 1996Statistics&ProbabilityLetters1996,28,4:1
5显示文摘LiuWen(刘雯) MiaoYang(苗洋) ChenShaoping(陈少平)etal 2013无机材料学报2013,28,4:1
6显示文摘LiuWen(刘雯) MiaoYang(苗洋) ChenShaoping(陈少平)eta1 2013无机材料学报2013,28,:1
7显示文摘CAOFeng—Pu(曹丰璞) DINGChengHua(丁呈华) LIUWen—Min(柳文敏) eta1 2011无机化学学报2011,27,:1
8Analytical Electron Microscopy Study of Interfacial Oxides formed on a Hot-rolled Low-Carbon Steel显示文摘Liuwen Chang Szu Ning Lin 2005Oxidation of Metals (-)2005,,3:1
9Heteroepitaxial growth of Fe2 Al5 inhibition layerin hot-dip galvanizing of an interstitial-free steel显示文摘Kuangkuo Wang Liuwen Chang Dershin Gan etal 2010Thin Solid Films2010,518,8:1
10AntibacterialeffectofChineseandwesternmedicineonmainpathogenbacteriaofrecessivecowendometritis[J]显示文摘WANGShuang(王爽) HEYuyi(和羽翼) LIUwen(刘文) eta1 中兽医学杂志0,,:1
11Efficient carrier transport via dual-function interfacial engineering using cesium iodide for high-performance perovskite solar cells based on NiOx hole transporting materials显示文摘As a famous hole transporting material, nickle oxide (NiOx) has drawn enormous attention due to its low cost and superior stability. However, the relatively low conductivity and high-density surface trap states of NiOx severely limit device performance in solar cell applications. Interfacial engineering is an efficient approach to achieve remarkable hole-transporting performance by surface passivation. Herein, the efficient NiOx hole transport layer was prepared by surface passivation engineering strategy via facile solution processes with cesium iodide (CsI). It is demonstrated that CsI plays a super-effective dual-function role in inverted solar cell device: On one hand, the presence of CsI hugely passivates the surface trap states at the NiOx/perovskite interface along with obviously improved conductivity by the incorporated Cs^(+);on the other hand, the ions immigration is significantly suppressed by the presence of I ion for high-quality perovskite films, resulting in a stable contact interface. The ameliorative interface leads to largely reduced carrier non-radiative recombination, attributing to boosted carrier extraction efficiency. As a result, decent power conversion efficiency (PCE) of 18.48% with a noticeable fill factor (FF) beyond 80% was achieved. This facile and efficient surface engineering approach with dual-function shows excellent potential for the design of high-performance functional interfacial modification layer to achieve high-performance solar cells.Taotao Hu Fu Zhang Hua Yu Meng Zhang Yue Yu Wenfeng Zhang Rui Liu Liuwen Tian Zhu Ma 2021Nano Research2021,14,11:1
12Skeleton pruning by contour partitioning with discrete curve cvolution显示文摘Xiang Bai LATECKI L J Yu Liuwen 2007lEEE Transactions on Pattern Analysis and Machine Intelligence2007,29,3:1
13Marriage and Spouse Selection in Present Shanghai显示文摘RECENTLY, 1,456 people in Shanghai were investigated for their marriages. The result was that the reason for marriage, age and the way of seeking partners has changed. The Reasons for Marriage According to the investigation, most people in Shanghai married first for reproduction purposes, so as to continue the family line and to further society.BIAN LIUWEN LIU QIAN 1996Women of China1996,,12:0
14非正式正装显示文摘新年新启程,楼宇灯林间,习惯了正装的男士们偶尔也会需要片刻休憩,也许是午休时和老朋友的一通电话,也许是下班后和伴侣的一场约会,也许是周末短暂的周边亲子游,让我们放松姿态,调整心情,尝试演绎非正式正装。Iris Liu LIUWEN(S.A.Y.)(摄影) 2022智族2022,,1:0
15不如跳舞显示文摘从什么时候开始,我们每一天的生活仿佛变成了枯燥又疲崽的重复?生活的意义难道不应该是在看似无限的循环中,迎接一个又一个新的惊喜。让我们抛掉所有的束缚和烦恼,尽情舞动,在每一个跨越0:00的时刻,迎接一个全新的自己。LIUWEN(S.A.Y.)(摄影) 2022智族2022,,1:0
16Co-evolution of paleo-environment and bio-precursors in a Permian alkaline lake,Mahu mega-oil province,Junggar Basin:Implications for oil sources显示文摘The co-evolution of paleo-environment and bio-precursors in alkaline lakes is of significance to understand the extreme environment system and associated enigmatic hydrocarbon potential.Here we used organic petrology and biomarker geochemistry to investigate the bio-precursors in a Permian alkaline paleo-lake in the Mahu mega-oil province within about a hundred miles of the Mahu Sag,Junggar Basin,China,and its effect on oil generation and accumulation.In general,the bioprecursors in the alkaline lacustrine source rocks of the Fengcheng Formation were mainly bacteria and algae,with a low abundance of higher plants.Therefore,these source rocks were mainly prone to oil generation.Two distinctive hydrocarbongenerating bio-precursors—Dunaliella-like algae and cyanobacteria—were identified.In addition to fossil evidence for these bio-precursors,the former results in a high C_(28)/C_(29)sterane ratio andβ-carotane abundance,and the latter results in the formation of medium-chain monomethyl alkanes in terms of biomarkers.The nature of the bio-precursors varied with the sedimentary paleo-environment,and was controlled by the salinity and stratification of the lake.Dunaliella-type source rocks were deposited in the central area of the alkaline lake,and cyanobacteria-type source rocks were formed around the lake margins.The crude oils in different parts of the Mahu mega-oil province within about a hundred miles have different sources.The bio-precursors in the saline lacustrine source rocks were jointly controlled by the age and water salinity of the source rocks.The physiological synthesis of carotenoids and sterols by haloalkaliphilic green algae may have affected the evolution of ancient green algae.Liuwen XIA Jian CAO Lizeng BIAN Wenxuan HU Tingting WANG Dongming ZHI Yong TANG Erting LI 2022Science China Earth Sciences2022,65,3:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费