| ²é¿´: 734 | »Ø¸´: 7 | |||
| µ±Ç°Ö÷ÌâÒѾ´æµµ¡£ | |||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |||
yalefield½ð³æ (ÎÄ̳¾«Ó¢)
ÀϺºÒ»Ã¶
|
[½»Á÷]
¡¾½»Á÷¡¿¿´µ½µç×ÓÔÆÁË£¿
|
||
|
15 September 2009 These are the first images of a carbon atom's electron clouds, showing several arrangements of the clouds (in blue) as they orbit the nucleus. The images were captured by Igor Mikhailovskij's team at the Kharkov Institute of Physics and Technology, Ukraine. The team unravelled a sheet of graphene ¨C a one-atom-thick lattice of carbon atoms ¨C to create a carbon-atom chain, which they put in a vacuum at 4.2 kelvin. They then ran 425 volts through the carbon, causing the atom at the tip to emit electrons onto a phosphor screen and produce the image. The study will be published in Physical Review B Image: APS/Kharkov Institute of Physics and Technology http://www.newscientist.com/gallery/dn15018-pick-of-the-pictures/2 |
» ²ÂÄãϲ»¶
¿ÉÉúÎï½µ½â¾Ûõ¥ÕýÔÚÖØËÜÏÖ´úÒ½ÁÆÆ÷е
ÒѾÓÐ0È˻ظ´
26½ì²©Ê¿ÉêÇë
ÒѾÓÐ4È˻ظ´
Óлú¸ß·Ö×Ó²ÄÁÏÂÛÎÄÈóÉ«/·ÒëÔõôÊÕ·Ñ?
ÒѾÓÐ151È˻ظ´
PLLA ΢ÇòÔÚÉúÎïҽѧÁìÓòµÄÑо¿ÓëÓ¦ÓÃ
ÒѾÓÐ1È˻ظ´
PLLA ΢ÇòµÄ²ÄÁÏÌØÐÔÓëÖÆ±¸¹¤ÒÕ½âÎö
ÒѾÓÐ0È˻ظ´
Ò½ÓþۼºÄÚõ¥£¨PCL£©È«½âÎö£º´ÓÁ½¶Îʽ½µ½âµ½×éÖ¯¹¤³ÌÓ¦ÓÃ
ÒѾÓÐ0È˻ظ´
·´Ïà¹è½ºÈçºÎÔÙÉú£¿
ÒѾÓÐ1È˻ظ´
¹þ¶û±õÀí¹¤´óѧ2026ÄêÑо¿Éúµ÷¼Á£¬²ÄÁÏ¿ÆÑ§Ó뻯ѧ¹¤³ÌѧԺÑо¿Éúµ÷¼Á
ÒѾÓÐ3È˻ظ´
Î人һ±¾¸ßУÕÐÊÕ²ÄÁÏ¡¢»¯Ñ§¡¢¸ß·Ö×Ó¡¢·ÄÖ¯¡¢ÉúÎïÏà¹Ø×¨ÒµË¶Ê¿Éú
ÒѾÓÐ0È˻ظ´
quantumor
½ð³æ (ÖøÃûдÊÖ)
¿ìÀÖÍÃ×Ó
- Ó¦Öú: 13 (СѧÉú)
- ½ð±Ò: 8506.3
- É¢½ð: 10
- ºì»¨: 14
- Ìû×Ó: 1898
- ÔÚÏß: 215.9Сʱ
- ³æºÅ: 630331
- ×¢²á: 2008-10-19
- ÐÔ±ð: GG
- רҵ: ÀíÂۺͼÆË㻯ѧ
- ¹ÜϽ: Á¿×Ó»¯Ñ§
¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
| ÀϺºÌṩµÄÐÅÏ¢ºÜºÃ£¬µ«Æä½á¹ûÒ²ÕýÈç2Â¥ËùÑÔ£¬Ôõô֤Ã÷¼¤·¢³öµÄµç×ÓµÄÔ˶¯¿Õ¼äÊÇÓëδ¼¤·¢Ç°µÄÒ»ÖÂÄØ£¿»òÐíÈô¸ÉÄê/Ôºó¿ÉÒÔÖ¤Ã÷£¿ÀíÂÛÖ¤Ã÷»¹ÊÇʵÑéÖ¤Ã÷ÄØ£¿ |

3Â¥2009-09-20 09:54:37
yelverxm
½ð³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 1016.5
- ºì»¨: 1
- Ìû×Ó: 159
- ÔÚÏß: 10.9Сʱ
- ³æºÅ: 426162
- ×¢²á: 2007-07-28
- רҵ: Ò©ÎïÉè¼Æ£¬»¯Ñ§ÐÅÏ¢
¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
| ÈçºÎʹµç×ÓemitÕâ¸öÎÊÌâÐè½øÒ»²½¿´¿´£¬Ôõô±£Ö¤emitµÄµç×ÓµÄλÖÃÓë¸ÃÔ×ÓδÊÕµ½Íâ½ç´Ì¼¤Ö®Ç°µÄλÖþßÓÐÒ»Ö»òÕßÏà¹ØÐÔÄØ£¿ |

2Â¥2009-09-18 07:51:17
ÇàÒ¶×Ó
Òø³æ (ÕýʽдÊÖ)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 202.7
- É¢½ð: 8
- Ìû×Ó: 611
- ÔÚÏß: 256.6Сʱ
- ³æºÅ: 618625
- ×¢²á: 2008-10-06
- רҵ: ÎÞ»ú·Ç½ðÊôÀà¹âµçÐÅÏ¢Ó빦
4Â¥2009-09-20 10:15:06
iangie
ľ³æ (ÖøÃûдÊÖ)
Ç¿ÆøÊÜ
- Ó¦Öú: 5 (Ó×¶ùÔ°)
- ½ð±Ò: 2450
- É¢½ð: 252
- ºì»¨: 9
- ɳ·¢: 4
- Ìû×Ó: 2770
- ÔÚÏß: 342Сʱ
- ³æºÅ: 760867
- ×¢²á: 2009-04-30
- רҵ: È˹¤¾§Ìå

6Â¥2009-09-20 16:19:47













»Ø¸´´ËÂ¥