The effect of a dam and its reservoir on flow regimes depends on both the storage capacity of the reservoir relative to the volume of river flow and the way the dam is operated. The most common attribute of flow regulation is a decrease in the magnitude of flood peaks and an increase in low flows.
Comcast Holdings Corp. was formerly known as Comcast Corporation and changed its name to Comcast Holdings Corp. in November, 2002. The company was incorporated in 1969 and is based in Philadelphia, Pennsylvania. Comcast Holdings Corp. operates as a subsidiary of Comcast Corporation.
Comcast is sometimes described as a family business. Brian L. Roberts, Chairman, President, and CEO of Comcast, is son of co-founder Ralph Roberts. Brian owns or controls just over 1% of all Comcast shares but all of the Class B supervoting shares, which gives him an undilutable 33% voting power over the company.he company's headquarters is located in Philadelphia, Pennsylvania. As the owner of the international media company NBCUniversal since 2011, Comcast is a producer of feature films and television programs intended for theatrical exhibition and over-the-air and cable television broadcast.