Free main features of the periodic table software for linux

EPeriodic project is an electronic periodic table. You can read the properties of each element in the table with a single click.

Teriodic project is a training tool for the periodic table of the elements.

Starting from 1 (hydrogen), it quizzes the abreviations of each element in numerical order.

If you make a mistake, it shows you the next five elements and lets you start again from hydrogen.

Knowing the periodic table makes it possible to estimate what chemicals look like and how they react.

libnetfilter_conntrack is a userspace library providing a programming interface (API) to the in-kernel connection tracking state table.
libnetfilter_conntrack has been previously known as libnfnetlink_conntrack and libctnetlink.
libnetfilter_conntrack library is used by conntrack.
Main features:
- listing/retrieving entries from the kernel connection tracking table
- inserting/modifying/deleting entries from the kernel connection tracking table
- listing/retrieving entries from the kernel expect table
- inserting/modifying/deleting entries from the kernel expect table

PostgreSQL Table Log contains functions that allow you to log PostgreSQL table inserts, updates, and deletes into another table.
This can be used to recover the state of the logged table or to recover specific rows from a given time period.
Enhancements:
- This version now works with PostgreSQL versions 8.2 and later.
- Some warnings have been removed and the documentation was cleaned up.
- PGXS is now used for building from source.
- RPM packages are available.

Katakana Table is a katakana table karamba theme. Useful for learning katakana. When one clicks on a character a passive popup will come up with the romaji and hiragana for that katakana.

If you middle click a character it will copy it to the clipboard. This theme uses unicode so your local probably needs to be utf8.

I havent tested that, im just speculating. works well with my hirgana table (http://www.kde-look.org/content/show.php?content=33568) which is due for a major reworking.

EntityTable provides software that enhances/fixes JTable.
Each table row corresponds to a data Object in a List.
Main features:
- column hiding
- locking
- panning
- row scrolling
- row sorting
- intuitive focus behaviour
- optional virtual rows and columns
- Java 1.4 support

Network Pipemeter is a tool for measuring available bandwidth between hosts. nepim is also useful to generate network traffic for testing purposes.
nepim operates in client/server mode, is able to handle multiple parallel traffic streams, reports periodic partial statistics along the testing, and supports IPv6.
nepim has been tested under Linux, Solaris and FreeBSD, though it should work under other platforms as well. If you manage to build nepim for different systems, please send the patch.
- nepim is useful to assess the throughput at the transport layer (TCP or UDP) as seen by applications.
- nepim runs single-threaded and should impose very light burden on your CPU. Unless, of course, your testing hosts have relatively high network bandwidth compared to low CPU power.
- One single server can service multiple clients simultaneously.
- As of nepim 0.11, one single client can interact simultaneously with multiple servers. For instance, suppose you want to test, from a single client, two remote servers, one located at 10.0.0.1,2000 and another at 192.168.0.1,3000:
- nepim -c 10.0.0.1,2000/192.168.0.1,3000
- The server listens to both TCP and UDP sockets. The client by default uses TCP sockets. Use the "-u" client option to switch the client operation to UDP.
- By default, only the server sends traffic towards the client. Use the "-s" client option to reverse the behavior, then only the client will send traffic. Use the "-d" client option to make both client and server to send traffic.
- Use the "-r" client option to establish an upper bit rate limit. Without a rate limiting option, nepim sends as fast as possible. See also "-R" below. Please notice the rate is specified in bps (bits per seconds); for instance, the following example states a rate limit of 100,000 bps (100 Kbps):
- nepim -c 10.0.0.1 -r 100000
- Use the "-R" client option to establish an upper "packet" rate limit (outbound rate limit for transport layer segments). Without a rate limiting option, nepim sends as fast as possible. If both "-r" and "-R" are given, nepim limits the sending rate at the lower of those bounds.
- Use the "-n" client option to run multiple parallel traffic streams.
- Use the "-b" server option to make the server to listen on specific local addresses.
- Use the "-6" option to disable IPv6 support.
Enhancements:
- Support for randomizing the UDP destination address/port has been added in order to put stress on routers with on-demand (dynamic) forwarding table caches.