It is a signature which is readable and takes a complete form of letter strokes.
The geometry of the surfaces (to change the reflection), the materials of the surfaces (to absorb radar), the exhaust is cooled to reduce heat signature, anything that reduces the heat and radar signature of the platform
Definition of conventional and non conventional energy
Conventional sources are the same as conventional sources.
This is the technology that is conventional
It is conventional because water is natural
non conventional
The difference between conventional and non conventional energy resources is that conventional energy resources are much more common. An example of a conventional energy resource would be oil, a non conventional energy resource would be solar power.
Whether conventional or non-conventional is better is a matter of opinion and circumstance. Different people have different answers.
Parent's signature. This is the possessive of signature (the parent owns it).
What are the conventional formulae?
A tank that is conventional
You don't. There is no difference in the type of energy, between the "conventional" and "non-conventional" types. What makes energy conventional or non-conventional is the SOURCE - a conventional source being one that has been used for a long time.