Pulga is a program for numerical simulation of dynamical systems. It is designed to provide a way for students and researchers who study dynamical systems to model them on a computer and analyze them numerically without the difficulty of traditional computer programming languages.
mod_myvhost is an Apache module for dynamically configured name-based mass virtual hosting with PHP. Virtual host configurations and PHP settings are stored in a MySQL database. There is no need to have every vhost in apache's configuration file, or to restart apache after a configuration change. It is able to change PHP settings dynamically for any vhost. By default, it sets open_basedir as the vhost's rootdir, but you can change almost any parameter that exists in php.ini. For example, you can turn on safe_mode or register_globals for a particular vhost.
Creating a digital library requires converting the original scanned images into various formats. WolfpackSys is a software system that performs these large data conversion tasks in a distributed manner. The framework allows the best off-the-shelf conversion programs to be used in an automated system, and it runs the conversions in parallel on a large number of machines. It is currently used to perform image cropping, de-skewing, de-speckling, and OCR, as well as to create JPEG and Acrobat files from scanned images.