Tuesday, March 25, 2008
Tuesday, March 18, 2008
Cerberus FTP Server
Cerberus FTP Server is "free for personal use and not-for-profit charitable organizations". Its main features are:
* Secure SSL/TLS Encryption
* Active Directory Integration
* Individual Virtual Directories
* Small installation size
* Low CPU and memory utilization
* IP Manager to control connection attempts
* Adherence to RFC959 and RFC1123
* RFC1579-Firewall - Friendly FTP
* Hidden server mode (Hides server window)
* Resumes failed file transfers
* HIPAA Compliant
* NT Service Support
* Logging support based on log4cxx
* Taskbar icon control and status indicator
* Connections limit and timeout controls
* Transfer and connection statistics
* IPv6 compatibility
Monday, March 10, 2008
Semi-empirical quantum chemistry methods
Within the framework of Hartree-Fock calculations, some pieces of information (such as two-elecron integrals) are sometimes approximated or completely omitted. In order to correct for this loss, semi-empirical methods are parametrized, that is their results are fitted by a set of parameters, normally in such a way as to produce results that best agree with experimental data, but sometimes to agree with ab initio results.
Wednesday, March 05, 2008
Terminal Radar Approach Control
A TRACON is sometimes called Approach Control or Departure Control in radio transmissions. In The US Air Force it is known as RAPCON (Radar Approach Control), and in the US Navy as a "RATCF" (Radar Air Traffic Control Facility) In Canada, Approach Control may be called Arrival or Terminal.