Embodiments of the invention provide a neural core circuit comprising a synaptic interconnect network including plural electronic synapses for interconnecting one or more source electronic neurons with one or more target electronic neurons. Selected, substantially constant voltages are provided for two electrodes that are part of the input screen, from one voltage source. The method for extracting phenol from waste water includes contacting in a countercurrent mode a phenol-containing waste water stream with a hydrocarbon stream derived from a bottoms stream from the acetone finishing column to produce a dephenolated waste water stream and a phenol-containing hydrocarbon stream. Then a removal of the max operator afterwards through a copy propagation pass of the IBM compiler is provided. The network policy is applied to one or more traffic flows to minimize signaling exchanges between a communication network and a mobile station. The window comprises a trapezoidal prism, a longer side surface of the parallel side surfaces of which forms a surface facing the medium.