Any undisturbed rock mass is subject to natural stresses inclu- ding gravitational stresses due to the mass of the overburden and possibly tectonic stresses due to the straining of the earth's crust and remanent stresses due to past tectonism.
No single volume has been entirely devoted to the properties of magnetic lenses, so far as I am aware, although of course all the numerous textbooks on electron optics devote space to them.
Industrieroboter (IR) werden durch sechs Teilsysteme gebildet: Aufbau (Kinematik), Antriebe, Steuerung, Regelung, Bedienung und last not least Sensoren.
Towards the end of the 1960s, a number of quite different circumstances combined to launch a period of intense activity in the digital processing of electron micro- graphs.
