Utku Genç 10th Week 030060070

Miscellaneous

Consisting of many different kinds of things that are not connected and do not easily form a group.

(A.S.Hornby, Oxford Advanced Learner’s Dictionary of Current English 6th Edition,p.749)

NED (North–East–Down) frame

The north-east-down frame is usually used in aircrafts as a missile guidance and control system. NED is a right-handed coordinate system with the positive x-axis along the missile’s longitudinal axis, and y-axis positive to the right (or aircraft right wing), and the z-axis positive down (i.e.,the z-axis is defined by the cross product of the x- and y-axis).

(George M. Siouris,Missile Guidance and Control Systems,p.20)

Biomachining

The metal to be machined is placed in a culture solution containing this bacterium, the conditions set appropriately and the solution oscillated, resulting in metal etching in proportion to the treatment time. This new machining method utilizing bioactivity has been named biomachining. Compared with conventional types of machining methods, the treated material undergoes no dynamic degeneration or adverse effects of heat.

(Kagaku Gijutsuchö, Science&Technology in Japan,p.67)