Abstract: A system for the automated cultivation of plants includes a plurality of guide rail pairs which support conveyor driven jigs carrying individual plants thereon. As the plants are driven by the conveyors, the driving elements or dogs on successive conveyors are increasingly spaced, so as to allow for the steady growth of the plants. The guide rails are arranged in a radial array to allow for increasing side-wise plant clearance, and are orificed as a means of providing the plants with air and nutrients.

Abstract: An apparatus for preventing biofouling caused by deposition and propagation of shellfish and algae in a cooling water system using sea water or river water for example, in a power plant, by periodically feeding ozone at high concentration to the system. An ozonizer is combined with an ozone-adsorbing and desorbing device so as to store ozone by adsorbing of an adsorbent and for a long time at lower temperature and desorbing ozone by periodically sucking at higher temperature if desired, by a water ejector.

Abstract: A sampling system for use in the analysis of water samples using quality sensors includes a device for intermittently supplying cleaning water containing ozone to the sensors, valves, pumps and related piping for cleaning the same.

Abstract: An intermittent ozone feeding apparatus including an ozonier for producing ozonized oxygen, an adsorption-desorption tower for adsorbing ozone from the ozonized oxygen and desorbing the ozone with oxygen produced from adsorbing ozone in said adsorption-desorption tower being recycled to the ozonizer, adsorption-desorption tower being cooled during an ozone adsorption period and being heated at a temperature higher than that in the adsorption period during the ozone desorption period while the adsorption-desorption tower is subject to suction under a reduced pressure so as to desorb ozone wherein the sucking operation is maintained until the pressure on the suction side of the tower side is lower than that within the adsorption-desorption tower after the desorption period has been completed.