Units, Constants, Conversion, Acronyms
General Conversion Factors Calculator
Allows to convert any defined standard or non-standard unit of measurement
used in Chemical Engineering regardless of complexity.
NIST - Physics Laboratory
Constants, Units, News and much more from the NIST
Acronyms
list of acronyms and abbreviations
MatWeb
"The Online Materials Information Resource" offers free materials information
on approx. 25,000 materials incl. metals, plastics, ceramics, and composites
NIST Atomic Spectra Database
The Atomic Spectra Database (ASD) contains data for atom and ion
transitions, and energy levels. Lines are included for the first 99
elements in the periodic table.
Physics Portal of FIZ-Karlsruhe
Several scientific information sources and services
- parts of the services are liable to charges - please have also a close view onto your local subscriptions -
INSPEC
The INSPEC database contains citations with abstracts to world physics, electronics and electrical engineering, computers and computing, and control theory and technology literature including journals, conference proceedings, books, dissertations, and reports.
INSPEC via STN-on-the-web
INSPEC via FIZ Technik WEB
INSPEC via STN Easy
- liable to charges - please have also a close view onto your local subscriptions -
INIS
This database is an information source for scientific literature published worldwide on nuclear science and technology.
INIS via STN-on-the-web
- liable to charges - please have also a close view onto your local subscriptions -
AXIOM publications and patents search engine of the IOP
This search engine combines and supersedes
other search engines for articles, patents, and yields incredible services.
- liable to charges - please have also a close view onto your local subscriptions -
Periodic Tables and Tables of Isotopes
Stowe's Periodic Table
The little different periodic table from a Physicist
DEPATISnet
Is a service provided by the German Patent and Trade Mark
Office. One can conduct online searches in patent publications from
around the world stored in the database of DEPATIS, the in-house
patent information system of the GPTO. This service is free of
charge.
DPINFO
Access to the databases for patents, utility models,
trade marks, industrial designs, and patents of the former GDR of the German
Patent and Trade Mark Office
Europe's Network of Patent Databases
Search and read patent applications from PCT, US, EP, JP
Caution: Using the patent services by your self will not substitute the work of a patent office, but it may complement it.