| 查看: 450 | 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
277 数一104，学硕，求调剂
已经有13人回复
-
一志愿西交机械专硕求调剂
已经有3人回复
-
求调剂
已经有3人回复
-
调剂
已经有14人回复
-
求调剂 材料与工程 324分 专硕
已经有15人回复
-
材料085601调剂
已经有11人回复
-
293求调剂
已经有5人回复
-
化工调剂求导师收留！一志愿失利，踏实肯干，有植物提取科研经历
已经有12人回复
-
332求调剂
已经有3人回复
-
083200 305分 求二轮调剂 不接受跨专业
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
