A novel maize variety designated PH268K and seed, plants and plant parts thereof. This allows a processor to be switched from a low power state to a high power state when a monitored data buffer level feeding data to a power intensive application is greater than a second memory buffer level. The measuring apparatus comprises a blind three-way mixing means, a pressure differential type flow measuring device, a single-\u03b3 phase volume fraction meter, a dual-\u03b3 phase volume fraction meter, an oil-gas-water multi-phase flow adjusting apparatus and a computing system.