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| 1 | N-羟基邻苯二甲酰亚胺酯在光催化烷基化反应中的研究进展显示文摘N-羟基邻苯二甲酰亚胺(NHP)酯可以由对应的羧酸衍生而来,是一类价廉、易得、稳定、具有高光活性的化合物.近年来,NHP酯类化合物在光催化脱羧反应中受到了广泛关注.根据光催化剂的类型,综述了可见光促进下NHP酯参与的烷基化反应的研究进展. | 贺帅旗 李昊聪 陈晓岚 Igor B.Krylov Alexander O.Terent'ev 屈凌波 於兵 | 2021 | 有机化学2021,41,12: | 5 |
| 2 | Vibrational properties of silicene and germanene显示文摘 | Emilio Scalise Michel Houssa Geoffrey Pourtois B. van den Broek Valery Afanas'ev andAndr Stesmans | 2013 | Nano Research2013,6,1: | 5 |
| 3 | Finite Minimal Non-supersolvable Groups Decomposable into the Product of Two Normal Supersolvable Subgroups显示文摘In this paper,we determine the finite minimal non-supersolvable groups decomposable into the product of two normal supersolvable subgroups. | Wenbin Guo A.S.Kondrat’ev | 2015 | Communications in Mathematics and Statistics2015,3,2: | 5 |
| 4 | 硅酸盐基钻井液是解决井壁稳定的好方法显示文摘 | Ocrt,EV 赵雄虎 | 1998 | 国外钻井技术1998,13,2: | 5 |
| 5 | PRNS──有权剩余数系统显示文摘本文提出的PRNS(Positional-ResidueNumberSystem)是一种有权和无权两种记数制相嵌套而构成的层次结构记数制.根据PRNS原理可以构造比传统二进制系统快许多倍的算术处理机.本文阐述了PRNS的基本概念、原理和加法算法。 | G.,EV 王玉祥 | 1994 | 计算机学报1994,17,8: | 3 |
| 6 | Effect of yttrium on photosynthesis and water relations in young maize plants显示文摘Despite an increase in spectrum of industrial applications of yttrium(Y) and the fact that it is widely present in the soils and plants,some of which are agronomically important crops,its effects on plant growth and metabolism are still obscure.Therefore,the aim of this work was to examine the effect of different concentrations of Y on its accumulation and distribution,photosynthetic responses,water relations,free proline concentration and growth of young maize plants.The experiment was done with maize(Zea mays L.,hybrid NS-640),in water cultures,under semi-controlled conditions of a greenhouse.Plants were supplied with half-strength complete Hoagland nutrient solution,to which was added either 0(control),10–5,10–4 or 10–3 mol/L Y,in the form of Y(NO)3·5H2O.Each variant was set in thirteen replications,with six plants in each replication.Plants were grown for 21 d and they were at the stage of 3 and 4 leaves when they were analyzed.The presence of Y reduced maize growth and photosynthetic performance.Dimensions of stomata significantly decreased while their density significantly increased on both adaxial and abaxial epidermis.Plant height,root length,total leaf area and dry mass also declined.Concentration of photosynthetic pigments(chl a and b and carotenoids) and free proline decreased.Photosynthesis and transpiration were impaired in the presence of Y – their intensities were also reduced,and the same stands for stomatal conductance of water vapor,photosynthetic water use efficiency(WUE) and water content.Although the highest concentration of Y was found in maize roots in each treatment,Y concentration in the second leaf and shoot also significantly increased with an increase in Y concentration in the nutrient solution.Albeit Y concentration was much higher in roots than in shoots,shoot metabolism and growth were much more disrupted.The results demonstrated that young maize plants accumulated significant amount of Y and that this element,when present in higher concentrations,had unfavorable effect on physiological processes and therefore plant growth. | Ivana Maksimovi Rudolf Kastori Marina Putnik-Deli Milan Boriev | 2014 | Journal of Rare Earths2014,32,4: | 3 |
| 7 | Selectivity of protoporphyrin IX fluorescence for condylomata after topical application of 5-aminolaevulinic acid:implications for photodynamic treatment显示文摘 | Ross EV Romeo R Kollias N | 1997 | Br J Dermatol1997,137,5: | 2 |
| 8 | Prospective comparison of sodium hyaluronate and hylan G-F 20 in a clinical practice:comment on the concise communication by Martens显示文摘 | Brown DJ Wood EV Hannah HM | | Arthritis and Rheumatism0,,: | 2 |
| 9 | Topological to trivial insulating phase transition in stanene显示文摘stanene 的电子性质, graphene 的 Sn 对应物理论上用第一原则的模拟被学习。对一个 out-of-plane 电场或由量监禁效果导致的小绝缘阶段转变拓扑被预言。结果加亮潜力在门电压使用 stanene nanoribbons 控制了无驱散的基于纺纱的设备并且被用来将最小的 nanoribbon 宽度放为如此的设备,它典型地是约 5 nm。 | Michel Houssa Bas van den Broek Konstantina Iordanidou Anh Khoa Augustin Lu Geoffrey Pourtois Jean-Pierre Locquet Valery Afanas'ev Andre Stesmans | 2016 | Nano Research2016,9,3: | 2 |
| 10 | 动物细胞的形态变化与基因表达显示文摘一、前言 动物细胞的一个基本特征就是它们与邻近细胞及与细胞外基质(extracellular matrix,BCM)之间的有规律的相互作用。正是通过细胞-细胞类型或细胞-细胞外基质类型的细胞接触受体与细胞内细胞骨架成分之间的跨膜联系,决定着动物细胞的形态。确定与细胞内外的蛋白质之间一系列结构上相互作用的组分,这方面的工作是一个很活跃的研究领域。 | Avri Ben-Ze'ev 赵赣 | 1993 | 细胞生物学杂志1993,15,2: | 2 |
| 11 | Critical Function for SIP, a Ubiquitin E3 Ligase Component of the β-Catenin Degradation Pathway, for Thymocyte Development and G1 Checkpoint显示文摘 | Toru Fukushima Juan M. Zapata Netai C. Singha Michael Thomas Christina L. Kress Maryla Krajewska Stan Krajewski Ze’ev Ronai John C. Reed Shu-ichi Matsuzawa | 2006 | Immunity2006,,1: | 2 |
| 12 | 进口甲型肝炎纯化灭活疫苗免疫原性及安全性显示文摘 | 陈新峰 虞祝祥 汪华 姜伟 Poerschke G Eves K Kuter B | 2003 | 中国公共卫生2003,19,10: | 2 |
| 13 | Broad-spectrum antimicrobial activity of human intestinal defensin 5显示文摘 | Porter EM van Dam E Valre EV | 1997 | J Immunol1997,65,6: | 2 |
| 14 | 泥页岩中的水相运移与改良钻泥页岩水基钻井液的设计显示文摘 | Oort.,EV 龙政军 | 1999 | 国外钻井技术1999,14,3: | 2 |
| 15 | Binuclear and Hexanuclear Ti(Ⅳ) Complexes Supported by [OOOO]^(4–)-type Ligand for Preparing Disentangled UHMWPE显示文摘Binuclear and hexanuclear titanium complexes stabilized by tetradentate [OOOO]^(4–)-type ligand were active in ethylene polymerization in the presence of Et2 AlCl/Bu2 Mg binary co-catalyst, giving high molecular weight polyethylene. The binuclear complex showed significantly higher catalytic activity and thermal stability in comparison to mononuclear analogue. Ultra high molecular weight polyethylene(UHMWPE) samples were processed by a solid-state uniaxial deformation into high-strength(up to 2.5 GPa) and highmodulus(over 100 GPa) oriented film tapes, which indirectly indicates a low degree of entanglements between the macromolecular chains. | Vladislav A.Tuskaev Svetlana Ch.Gagieva Dmitry A.Kurmaev Viktor G.Vasil'ev Nikolay A.Kolosov Sergey V.Zubkevich Elena S.Mikhaylik Evgenii K.Golubev Galina G.Nikiforova Pavel A.Zhizhko Olga A.Serenko Boris M.Bulychev | 2019 | Chinese Journal of Polymer Science2019,37,5: | 2 |
| 16 | 多相/均相TiO_(2)/N-羟酰亚胺混合体系中可见光诱导分子氧可控光催化氧化苄基反应显示文摘均相催化和多相催化通常被认为是独立甚至相互对立的学科.本文提出了一种新型的用于分子氧选择性氧化烷基苯的杂多酸/均相混合催化体系.该催化体系由N-羟基邻苯二甲酰亚胺(NHPI,用于自由基链式反应的均相有机催化剂)和纳米TiO_(2)(多相紫外光活性光氧化催化剂)两种组分组成.NHPI与TiO_(2)的协同作用使光氧化活性从紫外光转移到可见光,并产生邻苯二甲酰亚胺-N-氧基(PINO)自由基.NHPI/PINO催化的自由基链式反应能够在没有额外光输入的情况下进行,从而从根本上提高能源效率.通过控制NHPI/TiO_(2)比率优化产物选择性,进而使烷基芳烃优先形成过氧化氢或酮. | Igor B.Krylov Elena R.Lopat'eva Irina R.Subbotina Gennady I.Nikishin Bing Yu Alexander O.Terent'ev | 2021 | Chinese Journal of Catalysis2021,42,10: | 2 |
| 17 | Helicobacter pylori infection in patients with chronic hives and asthma 显示文摘 | Karel' skaia IA Ignat' ev VK | 2005 | Klin Med(Mosk)2005,83,3: | 1 |
| 18 | Selectivity of protoporphyrin IX fluorescence for condylomata after topical application of 5-aminolaevulinic acid: implications for photodynamic treatment显示文摘 | Ross EV Romero R Kollias N | 1997 | Br J Dermatol1997,137,5: | 1 |
| 19 | Proposed parent vessel geometry-based categorization of saccular intracranial aneurysms: Computational flow dynamics analysis of the risk factors for lesion rupture 显示文摘 | Hassan T Timofeev EV Saito TA | 2005 | Neurosurg2005,103,: | 1 |
| 20 | Role of potassium channels in the central neurogenic neuroprotection elicited by cerebellar stimulation in rat显示文摘 | Christensen JD Reis DJ | 1999 | Brain Res1999,842,: | 1 |