全文获取类型
收费全文 | 102篇 |
免费 | 1篇 |
专业分类
化学 | 57篇 |
晶体学 | 2篇 |
力学 | 1篇 |
数学 | 15篇 |
物理学 | 28篇 |
出版年
2023年 | 1篇 |
2019年 | 2篇 |
2018年 | 2篇 |
2017年 | 3篇 |
2016年 | 3篇 |
2015年 | 1篇 |
2013年 | 6篇 |
2012年 | 4篇 |
2011年 | 3篇 |
2010年 | 1篇 |
2009年 | 2篇 |
2008年 | 2篇 |
2007年 | 4篇 |
2006年 | 3篇 |
2004年 | 3篇 |
2003年 | 4篇 |
2002年 | 7篇 |
2001年 | 4篇 |
2000年 | 4篇 |
1999年 | 4篇 |
1998年 | 3篇 |
1997年 | 3篇 |
1996年 | 3篇 |
1995年 | 5篇 |
1994年 | 1篇 |
1983年 | 5篇 |
1982年 | 3篇 |
1981年 | 3篇 |
1980年 | 2篇 |
1979年 | 2篇 |
1978年 | 1篇 |
1977年 | 2篇 |
1976年 | 2篇 |
1975年 | 1篇 |
1973年 | 2篇 |
1964年 | 1篇 |
1958年 | 1篇 |
排序方式: 共有103条查询结果,搜索用时 0 毫秒
101.
Amit Das Jinu Jacob George Burak Kutlu Andreas Leuteritz De‐Yi Wang Sandip Rooj Ren Jurk Ramanujam Rajeshbabu Klaus Werner Stckelhuber Vassilios Galiatsatos Gert Heinrich 《Macromolecular rapid communications》2012,33(4):337-342
Elastomeric composites are prepared based on solution styrene butadiene elastomer and zinc‐aluminium layered double hydroxides (LDH), using a conventional sulphur cure system. Up to 100 parts per hundred rubber of LDH are incorporated into the elastomer matrix. The composites exhibit an interesting phenomenon of thermoreversible transparency, i.e. the transparent sample becomes opaque at warm condition and restores the transparency at room temperature. The transparency is found to be increased as the amount of LDH was increased. The addition of LDH gradually improved the mechanical, dynamic mechanical performance and thermal stability of the base elastomer. These developped elastomers could be utilised as smart materials in different applications. 相似文献
102.
N. C. R. Holme L. Nikolova T. B. Norris S. Hvilsted M. Pedersen R. H. Berg P. H. Rasmussen P. S. Ramanujam 《Macromolecular Symposia》1999,137(1):83-103
Azobenzenes can serve as model compounds for the study of transcis isomerization in more complex molecules. We have performed time-resolved spectroscopy in solutions containing free azobenzene chromophores and diols with a view to obtaining the energy levels and lifetimes of the excited states. A transition route based on experimental results for the theoretically calculated energy level scheme is proposed. Physical observations of surface relief in thin films of azobenzene polymers when irradiated with polarized light are reported. These include two beam polarization holographic observations and single beam transmission measurements through a mask, followed by atomic force microscope and profiler investigations. It is concluded that none of the prevalent theories can explain all the observed facts. 相似文献
103.