| 查看: 472 | 回复: 6 | |||
| 当前主题已经存档。 | |||
sagaman木虫 (著名写手)
|
[交流]
Nature给的top 5研究领域
|
||
|
Are you working on the hottest topic in your field? Many scientists may think so, but it has been a tough assertion to prove — until now, that is. A German physicist has devised a way of answering the ‘Hot or not?’ question for his discipline. If it stands up to scrutiny, it could be used to rate topics across the sciences. In physics, the results show that hotness — measured by a parameter known as m — correlates well with the promise of future wealth… and that promise is greatest in nanotechnology. 12.85 Carbon nanotubes Super-strong materials and blisteringly fast electronic circuits: the potential applications of these tiny carbon tubes, discovered in 1991, are so enticing that everyone is pouring money into the field. 8.75 Nanowires Less well studied than nanotubes, but the possible uses are similar. Nanowires could eventually prove more useful than nanotubes, because their chemistry is easier to tailor and they can be used to create nano-sized lasers. 7.84 Quantum dots Another nanotechnology with a huge range of potential applications. These tiny specks of semiconductor material, measuring as little as a few nanometres across, have already been used to create dyes for cell biologists and new kinds of laser. Physicists hope they might one day form the basis of a quantum computer. 7.78 Fullerenes These spheres of carbon atoms are attracting significant research interest. But the latest ranking rewards newness, so the topic may have slipped down the list because it predates nanotubes by around six years. The discovery of fullerenes earned a Nobel prize and spawned studies of numerous potential uses, such as drug delivery agents. 6.82 Giant magnetoresistance Not a new topic, but still hot because of its economic importance. Modern hard disk drives were made possible by the discovery of giant magnetoresistant materials, which show marked falls in electrical resistance — more than around 5% — when a magnetic field is applied. Researchers are now aiming to make hard disks even more powerful. [ Last edited by sagaman on 2006-5-31 at 14:28 ] |
回复此楼» 猜你喜欢
一志愿A区211，22408 321求调剂
已经有8人回复
-
295分求调剂
已经有6人回复
-
一志愿中科大材料与化工，353分还有调剂学校吗
已经有13人回复
-
085600材料与化工调剂
已经有6人回复
-
320求调剂
已经有6人回复
-
期刊推荐
已经有5人回复
-
有没有接收比较快的sci期刊呀，最好在一个月之内的，研三孩子求毕业
已经有7人回复
-
又一批高校组建人工智能学院 师资行吗 不是骗人吗
已经有4人回复
-
337求调剂
已经有3人回复
-
申博/考博
已经有5人回复
1
 |
2楼2006-06-02 14:18:23
3楼2006-06-02 14:33:56
waie_403
木虫 (正式写手)
- 应助: 2 (幼儿园)
- 金币: 2142.7
- 散金: 2291
- 红花: 6
- 帖子: 684
- 在线: 90.8小时
- 虫号: 123882
- 注册: 2005-12-05
- 性别: GG
- 专业: 无机非金属类光电信息与功
4楼2006-06-02 16:25:03
5楼2006-08-29 13:33:02
yxcai
铁杆木虫 (著名写手)
- 应助: 8 (幼儿园)
- 金币: 13999.6
- 散金: 916
- 红花: 15
- 帖子: 2776
- 在线: 666.5小时
- 虫号: 150399
- 注册: 2005-12-29
- 专业: 凝聚态物性I:结构、力学和
6楼2006-08-29 14:54:27
1
? |
7楼2006-08-30 00:24:44
5