A pân junction is a boundary or interface between two types of semiconductor materials, p-type and n-type, inside a single crystal of semiconductor. The p side contains an excess of holes, while the n side contains an excess of electrons in the outer shells of the electrically neutral atoms there. This allows electrical current to pass through the junction only in one direction. The p-n junction is created by doping, for example by ion implantation, diffusion of dopants, or by epitaxy ...
ITER is an international collaboration to build the first fusion science experiment capable of producing a self-sustaining fusion reaction, as a way of generating a clean, safe, and sustainable power.
ITIL Â® is a best-practice methodology for IT service management (ITSM), which that focuses on the end user rather than technology. It is the most widely adopted approach for ITSM in the world, and is used by organizations including Disney, NASA, HSBC, HP, and the IRS.Read on for an introduction to ITIL and the ITIL books, tools, qualifications, and training options available.lthough they are integrated, ITIL and the ISO20000 series serve different purposes. The ISO20000 series primarily provides an independent best-practice standard that is suitable for independent third-party certification audits. The purpose of ITIL is to provide advice on best practices in IT service management.