nocturnal emission reflex emission of semen during sleep. thermionic emission the application of heat, such as to a filament, resulting in the emission of electrons and ions. thermionic emission
Which means if the equipment if design to has a high factor of safety, the cost to fabricate the equipment will increase and same to the weight too. But if the equipment is design with low cost and low weight, the factor of safety will be low too.
Less-Than Lethal - By definition, 'less-than-lethal' implies a greater likelihood of serious bodily injury or death over 'non-lethal'. There is a greater tolerance in the industry for the lethality level which is considered inherent in the margin of error. This term is ordinarily prescribed for various munitions deployed from higher velocity -lethal weapons, batons, electronic devices and is some venues chemical agents.