41. At 73, Goodwin has emphysema and he uses an electrical oxygen concentrator to help him breathe. 42. Katherine Ridgley suffers from lung disease and uses an oxygen concentrator more than 10 hours each day. 43. One way to compensate for the performance degradation is to utilize a concentrator with more flow capacity. 44. Also in 1998, the Los Colorados concentrator was expanded to 120, 000 tonnes per day. 45. In contrast to the power tower concentrator concept that California's original Solar One project uses. 46. In many cases, the concentrator is co-located in the same building as the switch. 47. The Falcon Concentrator is a type of A Semi-Batch Model Falcon Gravity Concentrator--> 48. The Falcon Concentrator is a type of A Semi-Batch Model Falcon Gravity Concentrator --> 49. The problems in the concentrator also affected the performance of MIM's Mount Isa lead smelter. 50. The concentrator removes some impurities from the rock, leaving a material that's 30 percent copper.
