首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   52篇
  免费   1篇
  国内免费   2篇
化学   38篇
晶体学   2篇
数学   8篇
物理学   7篇
  2023年   1篇
  2022年   2篇
  2021年   3篇
  2020年   1篇
  2019年   3篇
  2018年   1篇
  2016年   4篇
  2015年   1篇
  2014年   1篇
  2013年   8篇
  2012年   4篇
  2011年   5篇
  2010年   10篇
  2009年   5篇
  2008年   3篇
  2007年   1篇
  2004年   1篇
  1997年   1篇
排序方式: 共有55条查询结果,搜索用时 12 毫秒
51.
In this article, Taylor's Decomposition method is introduced for solving one‐dimensional Bratu problem. The numerical scheme is based on the application of the Taylor's decomposition to the corresponding first order differential equation system. The technique is illustrated with different eigenvalues and the results show that the method converges rapidly and hence approximate the exact solution very accurately for relatively large step sizes. © 2009 Wiley Periodicals, Inc. Numer Methods Partial Differential Eq 2010  相似文献   
52.
53.
In this paper, novel fluorinated silane compound was prepared by adding hydroxyl terminated Fluorolink D10H oligomer to 3-(triethoxysilyl)propylsuccinicanhydride. The obtained silane system was independently composed with 3-Aminopropyltrimethoxysilane, 3-Glycidyloxypropyltrimethoxysilane and 3-Glycidyloxypropyltriethoxysilane and, then the prepared coating solutions were applied to glass surface by spin-coating method. The chemical bonding between groups in system was investigated by Fourier Transform Infrared Spectroscopy analyses. The elemental composition of coatings was determined using Energy Dispersive X-ray Spectroscopy analyses. Its structure and surface properties were analyzed by scanning electron microscopy, atomic force microscopy, contact angle measurement and Ultraviolet–visible Absorption Spectroscopy. The amounts of fluorine on the coatings prepared with GF20-D10H-AMMO, GF20-D10H-GLYEO and GF20-D10H-GLYMO are 31, 32 and 34% at, respectively. Transparent coatings with smooth surface and uniform thickness were observed. The coatings had nanoscale roughness. The contact angles of coatings for water ranged from 88 to 107o, and that of n-hexadecane ranged from 53 to 60o.  相似文献   
54.
This paper describes the preparation and characterization of ZrO2 thin films deposited on silicon wafer by spin coating method. Nanocrystalline ZrO2 was synthesized by hydrothermal method using zirconium (IV)-n-propoxide as a precursor material. Surface of the ZrO2 particles was then modified with 2-acetoacetoxyethyl methacrylate used as a copolymer for coatings. The optical properties, nanostructure and surface morphology of the thin films prepared from surface modified ZrO2 nanoparticles were examined by optical spectroscopy, X-ray diffraction and scanning electron microscopy, respectively. It was found that the films deposited on silicon wafer have crystalline structure of monoclinic (111) at temperature of 150 °C. It was observed that films depict very dense material that does not present any granular or columnar structure. It was found that optical transparency of thin ZrO2 films distributed in the range of 30-40 percent in the spectral range 400-800 nm. Refractive index of ZrO2 films were determined as functions of ZrO2 content and it was found that the refractive index increases from 1.547 to 1.643 with increased ZrO2 content.  相似文献   
55.
Journal of Solid State Electrochemistry - A powder-free solid oxide cell electrode fabrication route is demonstrated, in which a polymeric precursor, containing the cations of electrocatalyst and...  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号