tailieunhanh - Biomimetics - Biologically Inspired Technologies - Yoseph Bar Cohen Episode 2 Part 3

Tham khảo tài liệu 'biomimetics - biologically inspired technologies - yoseph bar cohen episode 2 part 3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 342 Biomimetics Biologically Inspired Technologies Riot Control Chemical Long-Term Passive Neurochemical . 359 Electrosensing . 360 References. 361 INTRODUCTION Whilst there are several proposed uses of biomimetics in defense or attack martial general law enforcement systems at present they seem to be mostly development of novel materials occasionally novel mechanisms in an established context. Examples are armor personal or otherwise made of analogs of silk mother-of-pearl nacre or wood. I do not intend to rehearse this topic further. Camouflage is another area that has been examined especially adaptive camouflage but since there is still much to be learned about camouflage techniques in nature which I take to include mimicry camouflage is deception I have included it. In general camouflage and armor are inimical the tendency is for the more primitive evolutionarily older animals of any particular phylum to be well armored but slow and relatively easily seen whereas the more highly evolved ones are less well armored or have no armor at all but are fast-moving or very well camouflaged or both. Thus they rely on speed and behavioral adaptiveness and subtlety for their safety. The inevitable conclusion is that nature often employs guerrilla techniques rather than what we think of as conventional ones. This may be related to the perceived financial investment. In human warfare an infantryman is seen as more expendable than the combination of a pilot and aircraft. Indeed a significant reason for having a pilot is as a hostage to the aircraft s expensive technology so that it is brought back in one piece from a sortie. The preparation of a chapter like this is especially difficult since I could not think of a suitable narrative to cover all the possibilities .