Wire drawing and extrusion

Extrusion is a process that uses a die in order to get a material with a constant cross-sectional cut. Similar to extrusion process, here the tensile strength of the material is used to pull it through the die.

Encryption algorithms: an overview

Security services such as confidentiality, entity andmessage authentication, integrity, and nonrepudiation can be provided to communication protocols using cryptography.

Machining of plastics

The processing of plastic materials are different depending on of the plastic type and can be distinguished in processing of thermosetting and thermoplastic resins.