A method for interpolating the environment and geological age at all levels in a borehole from information provided by a limited number of depths and the use of a synthetic stratigraphic cross-section for the interval between these depths. The wind turbine apparatus is modular and sectional such that each section includes a pair of blades useful for being pushed by wind to generate electricity via an attached electrical generator. In this manner, an object edge information is selectively protected, so that an improved image quality may be provided. The use of such optical line terminals allows the upgrading and merging of the separate networks while in service. The predetermined pilot symbol pattern is defined such that pilot symbols are located at or near time boundaries of the resource, at or near frequency boundaries of the resource, or both. Manufacturers and merchants can update coupon value and content based on ongoing sales and volume of customer activity.