An apparatus and method is discussed for characterizing a fluid sample downhole of aliphatic hydrocarbon compounds, aromatic hydrocarbon compound, or connate mud filtrates containing carbon-13 isotopes using an enhanced nuclear magnetic resonance signal on a measurement-while-drilling device. Thus, a device is introduced including a leaflet fastener applicator through a cardiac catheter or other suitable catheter. The viewing angle detector has a driving voltage generator and a voltage divider. At this time, a direction of the delay in the temporal change ) in the carrier ionosphere delay included in the temporal change ) in the L1 carrier phase is matched with a direction of the delay in the temporal change ) in the carrier ionosphere delay used to calculate the corrected ionosphere delay ). A first control pilot is in fluid communication with the main valve and a first fluid aperture of the variable orifice assembly. The heat spreader is not in contact with any of the substrate and the semiconductor chip, and has an opening.