(Untitled)- March 25, 2008 Application-level gatewayIn the context of computer networking, an application-level gateway 1 (also known as ALG or application layer gateway) consists of a security component that augments a firewall or NAT employed in a computer network. It allows customized NAT traversal filters to be plugged into the gateway to support address and port translation for certain application layer "controldata" protocols such as FTP, BitTorrent, SIP, RTSP, file transfer in IM applications etc. In order for...http://mekoblog.blogspot.com/2008/03/application-level-gateway-in-context-of.html (Untitled)- March 18, 2008 Waterfall modelThe waterfall model is a sequential software development model (a process for the creation of software) in which development is seen as flowing steadily downwards (like a waterfall) through the phases of requirements analysis, design, implementation, testing (validation), integration, and maintenance. The origin of the term "waterfall" is often cited to be an article published in 1970 by Winston W. Royce (19291995),1 although Royce did not use the term "waterfall" in this...http://mekoblog.blogspot.com/2008/03/waterfall-model-waterfall-model-is.html (Untitled)- March 10, 2008 Field emission display (FED)A field emission display (FED) is a type of flat panel display using field emitting cathodes to bombard phosphor coatings as the light emissive medium.Field emission displays are very similar to cathode ray tubes, however they are only a few millimeters thick. Instead of a single electron gun, a field emission display (FED) uses a large array of fine metal tips or carbon nanotubes (which are the most efficient electron emitters known), with many positioned behind...http://mekoblog.blogspot.com/2008/03/field-emission-display-fed-field.html (Untitled)- March 4, 2008 Methods for solidsComputational chemical methods can be applied to solid state physics problems. The electronic structure of a crystal is in general described by a band structure, which defines the energies of electron orbitals for each point in the Brillouin zone. Ab initio and semi-empirical calculations yield orbital energies, therefore they can be applied to band structure calculations. Since it is time-consuming to calculate the energy for a molecule, it is even more time-consuming to...http://mekoblog.blogspot.com/2008/03/methods-for-solids-computational.html |