²é¿´: 573  |  »Ø¸´: 5
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£

tkytzk

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

[½»Á÷] [Ô­´´]ÍøÉÏÃâ·ÑÊý¾Ý¿â[¹²¼Æ 41 ¸ö]

[watermark]http://www.pcdigest.com/¡¶¼ÆËã»úÓ¦ÓÃÎÄÕª¡·

   www.ncbi.nlm.nih.gov/pubmed/  ÃÀ¹úҽѧͼÊé¹Ý(NLM)µÄÊý¾Ý¿â¼ìË÷ϵͳ

   AGRICOLA  Online Public Access Catalog(Books, etc.)¡¢Journal Article Citation Index(Articles, etc.)

   The AGRIS/CARIS Centre of information Management forinternational Agricultural Reaearch  The AGRIS/CARIS Centre of information Management forinternational Agricultural Reaearch.

   NCBI   Established in 1988 as a national resource for molecular biology information, NCBI creates public databases, conducts research in computational biology, develops software tools for analyzing genome data, and disseminates biomedical information - all for the better understanding of molecular processes affecting human health and disease.

   Digital  Dissertations  As a visitor, you will be able to freely access the most current two years of citations and abstracts in the Dissertation Abstracts database. To search the entire database of more than 1.6 million titles, you will need to connect from a subscription institution.

   United States Patent and Trademark Office   United States Patent and Trademark

   Intellectual Property Digital Library  The Intellectual Property Digital Library Web site provides access to various intellectual property data collections currently hosted by the World Intellectual Property Organization. These collections include Madrid, PCT and JOPAL (non-patent reference) data and support fully searchable information retrieval and display by users on demand. Access to the Digital Library is available to the general public free-of-charge. The services are operational and are updated on a daily, weekly and monthly basis respectively.There are currently two levels of access available: Guest and Account. For users with accounts, a search query history is maintained across connections. For guest access, click on Search IPDL or Browse IPDL and, when prompted, enter:

   The NASA Astrophysics Data System  ÊÀ½ç×î´óÃâ·ÑÈ«ÎÄÍøÕ¾£¬³¬¹ý300,000ƪȫÎÄ¡£Ö÷Ҫѧ¿Æ£ºÌìÌåÎïÀíѧ¡£

   HighWire Press  ÊÀ½çµÚ¶þ´óÃâ·ÑÈ«ÎÄÍøÕ¾£¬³¬¹ý235£¬812ƪȫÎÄ¡£Ö÷Ҫѧ¿Æ£ºÉúÎïѧ¡¢Ò½Ñ§¡£

   arXiv.org   Ö÷Ҫѧ¿Æ£ºÎïÀí¡¢Êýѧ¡¢·ÇÏßÐÔ¿ÆÑ§¡¢¼ÆËã»ú¿ÆÑ§µÈ¡£Îļþ¸ñʽÒÔPostScriptΪÖ÷£¬ÈçûÓÐÏàÓ¦µÄÔĶÁÈí¼þ£¬¿ÉÒÔÑ¡ÔñÉú³ÉPDFÎļþ¸ñʽ¡£

    Centers for Disease Control and Prevention (CDC)  Ö÷Ҫѧ¿Æ£ºÒ½Ñ§¡£

   CogPrints  Ö÷Ҫѧ¿Æ£ºÐÄÀíѧ¡¢Éñ¾­¿ÆÑ§¡¢ÐÐΪ¿ÆÑ§¡¢ÓïÑÔѧ¡¢È˹¤ÖÇÄÜ¡¢ÕÜѧ¡£

  GPO Access  ÃÀ¹úÕþ¸®ÎÄÏס£

  National Academy Press  ÃÀ¹ú¹ú¼Ò¿ÆÑ§Ôº¡¢¹ú¼Ò¹¤³ÌÔº¡¢Ò½Ñ§Ð­»áµÈ»ú¹¹±¨¸æ¡£

   National Center for Health Statistics (NCHS)  ÃÀ¹ú¹ú¼ÒÎÀÉúͳ¼ÆÖÐÐĵÄͳ¼Æ±¨¸æ¡£

   NCSTRL   ¼ÆËã»ú¿ÆÑ§Ñо¿±¨¸æºÍÂÛÎÄ¡£

   Project Gutenberg Electronic Public Library  µç×ÓͼÊ飬2002ǰÌṩ10000ÖÖÈ«Îĵç×ÓͼÊé¡£

   Thomas Legislative Information on the Internet  ÃÀ¹ú¹ú»áͼÊé¹ÝÌṩµÄÃÀ¹ú¹ú»á±¨¸æºÍÀúÊ·ÎÄÏס£

   UNESCO  ÁªºÏ¹ú½Ì¿ÆÎÄ×éÖ¯ÌṩµÄÎĵµ¡£
   United States Geological Survey  ÃÀ¹úµØÖÊ¿¼²ì±¨¸æ¡£

   World Development Sources (World Bank)  ÊÀ½çÒøÐб¨¸æ¡£

   Delphion  ÊÀ½ç¸÷¹úרÀû£¬¿É¿´µ½Ç°Ê®ÈýҳȫÎÄ¡£

   ÃÀ¹úÊýѧѧ»á(AMS)µÄÈýÖÖÃâ·ÑÆÚ¿¯£º
        Bulletin
        Electronic Research Announcements
        Notices of the American Mathematical Society

   Physics Today   ÃÀ¹úÎïÀíѧ»á(American Institute of Physics)ÌṩµÄÃâ·ÑÔÓÖ¾

   Frontiers in Bioscience  ÉúÎï¿ÆÑ§ÆÚ¿¯ºÍͼÊ飬ÎÄÕ±»Biosis¡¢CA¡¢MedlineµÈÖØÒª¶þ´ÎÎÄÏ×Êý¾Ý¿âÒýÓÃ

  The World Wide Web Journal of Biology  ±»Biosis PreviewsÒýÓÃ

   Science Magazine  ¿ÆÑ§ÔÓÖ¾¡£

   Scientific American

   ACM Digital Library

   ejournal.coalliance.org  È«ÎÄÆÚ¿¯
£ £ ¡¡¡¡
   www.spie.org/bookstore   SPIEÕªÒª
¡¡¡¡¡¡
   www.uspto.gov/patft/index.html  ÃÀ¹úרÀû
£ ¡¡¡¡¡¡
   www.bjnet-pku.edu.cn/jingxiang.htm  211¹¤³Ì¾µÏñ×ÊÔ´
¡¡¡¡
   www.sdb.ac.cn/  ¿ÆÑ§Êý¾Ý¿â
¡¡¡¡
   www.britannica.com/  ´óÓ¢°Ù¿ÆÈ«Êé

   home.exin.net/patent/ ÖйúרÀûÊý¾Ý¿â

   www.cqvip.com/   ÖÐÎÄÆÚ¿¯¿â

   www.calis.edu.cn/calis/database/gateway.htm  Uncover

   gdb.mirror.edu.cn/gdb/  »ùÒò×éÊý¾Ý¿â
  restools.sdsc.edu/  CMS MBRÉúÎïÍøÕ¾[/watermark]

[ Last edited by tkytzk on 2003-10-10 at 19:09 ]
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

[fly][color=red]ºÃÓÃ!¶¥Ò»ÏÂ![/color][/fly]
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Æ·ÖÖ·±¶à°¡

2Â¥2003-10-09 22:02:35
ÒÑÔÄ   ÉêÇëKEPI   »Ø¸´´ËÂ¥   ±à¼­   ²é¿´ÎÒµÄÖ÷Ò³
3q
3Â¥2003-10-09 22:37:09
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

tkytzk

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

²»ÖªÎªÊ²Ã´,Êý¾Ý¿âµÄ³¬¼¶Á´½ÓûÆð×÷ÓÃ!½ñÌìÌ«ÍíÁË,Ã÷ÌìÔٱ༭°É!
[fly][color=red]ºÃÓÃ!¶¥Ò»ÏÂ![/color][/fly]
4Â¥2003-10-09 22:40:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

tkytzk

Ìú¸Ëľ³æ (ÕýʽдÊÖ)

ºÃ¶«Î÷ÒªÈÃÈË¿´µ½!»¹ÊÇ×Ô¼º¶¥Ò»Ï°É!
[fly][color=red]ºÃÓÃ!¶¥Ò»ÏÂ![/color][/fly]
5Â¥2004-01-18 14:52:52
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wwangfeng

Òø³æ (ÕýʽдÊÖ)

³Ïʵ×öÈË̤ʵ×öÊÂ

1

ÐÁ¿à
×öÈËÒªÖª×ã,×öÊÂÒª²»Öª×ã,×öѧÎÊÒªÖª²»×ã
6Â¥2004-01-18 15:16:55
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ tkytzk µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 085601²ÄÁϹ¤³Ìר˶Çóµ÷¼Á +10 Ľº®mio 2026-03-16 10/500 2026-03-19 15:26 by ¶¡¶¡*
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á +5 pupcoco 2026-03-17 8/400 2026-03-19 13:58 by houyaoxu
[¿¼ÑÐ] Ò»Ö¾Ô¸¸£´ó288Óлú»¯Ñ§£¬Çóµ÷¼Á +3 Сľ³æ200408204 2026-03-18 3/150 2026-03-19 13:31 by houyaoxu
[¿¼ÑÐ] Ò»Ö¾Ô¸Äϲý´óѧ£¬327·Ö£¬²ÄÁÏÓ뻯¹¤085600 +3 Ncdx123456 2026-03-19 3/150 2026-03-19 13:18 by houyaoxu
[¿¼ÑÐ] Ò»Ö¾Ô¸Ìì´ó²ÄÁÏÓ뻯¹¤£¨085600£©×Ü·Ö338 +5 ²Ì´óÃÀÅ® 2026-03-13 5/250 2026-03-19 10:44 by ÊÇСÁõѽ¡«
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á +8 ÄÝÄÝninicgb 2026-03-15 12/600 2026-03-19 05:55 by anny19840123
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÖпƼ¼´óѧ£¬080502£¬354·ÖÇóµ÷¼Á +4 ÊØºòϦÑôCF 2026-03-18 4/200 2026-03-18 22:16 by li123456789.
[¿¼ÑÐ] »¯Ñ§¹¤³Ì321·ÖÇóµ÷¼Á +15 ´óÃ×·¹£¡ 2026-03-15 18/900 2026-03-18 14:52 by haxia
[¿¼ÑÐ] 298-Ò»Ö¾Ô¸Öйúũҵ´óѧ-Çóµ÷¼Á +7 ÊÖ»úÓû§ 2026-03-17 7/350 2026-03-18 14:34 by vgtyfty
[¿¼ÑÐ] 304Çóµ÷¼Á +12 СÐÜjoy 2026-03-14 13/650 2026-03-18 12:34 by Linda Hu
[¿¼ÑÐ] 299Çóµ÷¼Á +5 ¡÷С͸Ã÷* 2026-03-17 5/250 2026-03-18 11:49 by ¾¡Ë´Ò¢1
[¿¼ÑÐ] 301Çóµ÷¼Á +9 yyÒªÉϰ¶Ñ½ 2026-03-17 9/450 2026-03-18 08:58 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] ¿¼Ñе÷¼Á +3 ä¿ya_~ 2026-03-17 5/250 2026-03-17 09:25 by Winj1e
[¿¼ÑÐ] ¶«ÄÏ´óѧ364Çóµ÷¼Á +5 JasonYuiui 2026-03-15 5/250 2026-03-16 21:28 by ľ¹Ï¸à
[¿¼ÑÐ] 333Çóµ÷¼Á +3 ÎÄ˼¿Í 2026-03-16 7/350 2026-03-16 18:21 by ÎÄ˼¿Í
[¿¼ÑÐ] 0703 ÎïÀí»¯Ñ§µ÷¼Á +3 ÎÒ¿ÉÒÔÉϰ¶µÄ¶Ô 2026-03-13 5/250 2026-03-16 10:50 by ÎÒ¿ÉÒÔÉϰ¶µÄ¶ÔÂ
[¿¼ÑÐ] 327Çóµ÷¼Á +6 ʰ¹âÈÎȾ 2026-03-15 11/550 2026-03-15 22:47 by ʰ¹âÈÎȾ
[¿¼ÑÐ] 288Çóµ÷¼Á +4 Ææµã0314 2026-03-14 4/200 2026-03-14 23:04 by JourneyLucky
[¿¼ÑÐ] Öпƴó²ÄÁÏר˶319Çóµ÷¼Á +3 ÃÏöβÄÁÏ 2026-03-13 3/150 2026-03-14 18:10 by houyaoxu
[¿¼ÑÐ] 070303Ò»Ö¾Ô¸Î÷±±´óѧѧ˶310ÕÒµ÷¼Á +3 dÈçÔ¸Éϰ¶ 2026-03-13 3/150 2026-03-13 10:43 by houyaoxu
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û