21. Probably the best example of something that seems to violate the second law is an optical isolator . 22. :: : An isolator is quite different to a ( hypothetical ) one-way mirror. 23. If back reflections cannot be avoided, an optical isolator must be installed directly behind the SLED module. 24. Secondly, percolated nanoparticles drastically improve resin conductivity, turning it from a perfect isolator into a semiconductor. 25. The unit used special adult-sized Vickers isolation units ( Vickers Medical Containment Stretcher Transit Isolator ). 26. Solid-state relays built around MOSFET switches usually employ a photodiode opto-isolator to drive the switch. 27. It is now very unusual for a sterile drug operation to be run without either an Isolator or RABS protective design. 28. The company introduced the first rubber isolator , the RSIC-1 ( Resilient Sound Isolation Clip ) product in 2000. 29. For a polarization dependent isolator , the angle between the polarizer and the analyser, \ beta, is set to 45? 30. Typically, this is a 63 A fuse and a switch, or a Minized fuse isolator which accepts a Neozed fuse.