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ѧ¿ÆÍøÂç×ÊÔ´Ïà¹ØÁ´½Ó http://www.lib.buct.edu.cn/dianzi-resource/more.htm ¡¡ ѧ¿ÆÍøÂç×ÊÔ´Ïà¹ØÁ´½Ó Science Citation Index ÆÚ¿¯Áбí Science Citation Index Expanded ÆÚ¿¯Áбí http://www.ingenta.com/ Ìṩ¸÷ѧ¿ÆµÄÏà¹ØÁ¬½Ó(browse subject area resources)£¬ÊÇÒ»×ÛºÏÐÔÃâ·ÑÍøÕ¾£¬Ìṩ¸÷ѧ¿Æ¶àÖÖ×ÊÔ´¡££¨ÍƼöʹÓã© http://www.osti.gov/ Access Journal Information ÌṩÁËÆÚ¿¯µÈ¶àÖÖÐÅÏ¢²éѯ£¬°üÀ¨ÍøÂç×ÊÔ´£¬ È«ÎÄ¿É´Ó Information BridgeµÃµ½£¨Ö÷Òª95ÄêÒԺ󣩡££¨ÍƼöʹÓã© ÎÄÕª¼ìË÷£º http://www.publist.com/ 35,000ÖÖÆÚ¿¯¼ìË÷£¬ ÌṩÎÄÕª £¨66ÄêÒԺ󣩡£ http://www.highwire.org/ ÎÄÏ×¼ìË÷£¬ ²¿·ÖÎÄÏ׿ɻñµÃÈ«ÎÄ¡£ http://www.scirus.com/ Ò»¸öÇ¿ÓÐÁ¦µÄËÑË÷¹¤¾ß£¨Ãâ·Ñ£©£¬ ͬʱËÑË÷ÍøÕ¾ºÍÆÚ¿¯×ÊÔ´£¬ µ«½öÏÞ¿ÆÑ§·½Ãæ¡£ http://www.biomedcentral.com ҽѧÃâ·ÑÍøÕ¾£¬º¬Éú»¯ºÍÉú»¯¼¼Êõ¡££¨È«ÎÄ£© http://www.chemweb.com/ Beilstein 1980ÄêÒÔºóÎÄÕª¼°Óлú»¯ºÏÎïÐÔÖÊ£¬¼°28,000¶àÖÖÓлú»¯ºÏÎïµÄÎïÀíÐÔÖʺ͹âѧÊý¾Ý»¯Ñ§Ïà¹ØÁ´½Ó¡££¨ÐèÏÈ×¢²á£© ¡¡ ÎïÀíÁ¿¼°µ¥Î»µÄ²éѯ£º NIST Reference on Constants, Units and Uncertainty (http://physics.nist.gov/cuu/index.html) This National Institute of Standards and Technology has a searchable and browsable list of the important physical constants with bibliography, as well as a thorough description of the SI system of units and a description of methods of expressing degree of uncertainty in measurements. An excellent reference site. ÏÂÃæµÄÍøÕ¾¿É²éѯ¸÷»¯Ñ§ÔªËصÄÐÔÖÊ£º WebElements (http://www.webelements.com/webelements.html) WebElements is a hypertext-linked collection of property data on the first 112 elements including (where available): general, chemical, physical, nuclear, electronic, biological, geological, crystallographic, reduction potential, isotopic abundances, electronic configurations, ionization enthalpy data and additional textual information, especially on the history of the elements. ÒÔÏÂÎå¸öÍøÕ¾¿É²éѯÓлú»¯ºÏÎïµÄÐÔÖʼ°¹âÆ×Êý¾Ý£º http://www.aist.go.jp/RIODB/SDBS/menu-e.html This site, from the National Institute of Materials and Chemical Research in Japan, contains full spectra and, in many cases, peak assignments for 30,000 compounds, including about 19,600 mass spectra, 11,000 13C NMR, 13,500 proton NMR, 47,300 IR, 3,500 Raman and 2,000 ESR spectra. The database is searchable by compound name, CAS Registry Number, molecular formula and NMR or IR peaks. The database is free to the public, but users are asked to download no more than 50 spectra per day without specific permission of the site owners. http://webbook.nist.gov/chemistry/ Among other data, NIST Chemistry Webbook has IR spectra for over 5000 compounds and mass spectra for over 10,000 compounds , which may be searched in a variety of ways, displayed and printed. http://chemfinder.cambridgesoft.com This database, provided by CambridgeSoft, provides basic physical data and structure diagrams. It also has links to websites containing other data for a large number of chemical compounds. It is searchable by name, molecular weight, molecular formula, and CAS Registry Number. organic compounds databases This database, compiled at Virginia Tech and made available by Colby College, provides physical data on a large number of organic compounds, including molecular weight, melting point, boiling point, index of refraction and UV absorption and mass spectral peaks. It is searchable by name, molecular formula or by data values for the above properties. Spectroscopic Tools (http://www.chem.uni-potsdam.de/tools/index.html) This site, based at the University of Potsdam, allows the user to plug in IR peaks in wave numbers, proton NMR peaks or mass spectral peaks and retrieve a list of the functional groups which would generate those peaks. It also has a 13C NMR database, searchable by peak or chemical name fragment, which can retrieve structures, spectra, peaks and peak assignments. Some features require the Chime browser plugin. ÓлúºÏ³É£º http://www.orgsyn.org/ £¨ÐèÏÈ×°²å¼þ£© The online version is freely available to the public and contains the contents of the entire series, searchable by chemical name, CAS Registry Number, other text terms, and by structure or substructure. Use of this excellent database requires a Java-capable browser, and installation of the free ChemDraw plugin. See System Requirements and Plugin Downloads for more information. »¯Ñ§ÍøÕ¾Ë÷Òý£º http://www.ch.cam.ac.uk/ChemSitesIndex.html 2000¸öÈ«Çò×îºÃµÄ»¯Ñ§ÍøÕ¾¡£ http://www.chemdex.org/ wwwÉÏÊýǧÖÖ»¯Ñ§×ÊÔ´µÄ×ÛºÏĿ¼¡£ links for chemists 8400¸öÍøÉÏ»¯Ñ§×ÊÔ´Ë÷Òý¡£ http://library.ust.hk/res/beyond/ Ïã¸Û¿Æ¼¼´óѧͼÊé¹ÝÍøÂç×ÊÔ´¡£ ÒÔÏÂÊÇÉç¿ÆÀàµÄÏà¹ØÁ´½Ó£º http://www.fedstats.gov/ ÃÀ¹úÁª°î¾Öͳ¼ÆÊý¾Ý¡£ http://ideas.repec.org/ ¾¼ÃÁìÓòµÄѧÊõÂÛÎÄ¡¢Ñо¿±¨¸æ¡¢Êé¼®¡¢Èí¼þµÈ¡£ http://www.ssrn.com/ The SSRN eLibrary consists of two parts: an Abstract Database containing abstracts on over 54,300 scholarly working papers and forthcoming papers and an Electronic Paper Collection currently containing over 33,500 downloadable full text documents in Adobe Acrobat pdf format. http://www.unesco.org/shs/shsdc/journals/shsjournals.html Éç¿ÆÔÚÏßÆÚ¿¯£¨²¿·ÖÈ«ÎÄ£©¡£ http://www.nsd.uib.no/cessda/europe.html Éç¿ÆÀàËÑË÷¡£ http://econlinks.com/economy.shtml ¾¼ÃÀàÁ´½Ó¡££¨ÐèÒªÆäËüÐÅÏ¢¿É´Óhttp://www.ingenta.com/ Ïà¹ØÁ´½ÓµÃµ½£© [ Last edited by jason108 on 2006-6-11 at 00:34 ] |
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