Differences in mean diet scores by nativity and length of residence were examined by including one exposure variable with four categories: Mexico-born Mexican Americans residing in the United States for <15 years, Mexico-born Mexican Americans residing in the United States for â¥15 years, US-born Mexican Americans, and US-born non-Hispanic whites.
A substation is a part of an electrical generation, transmission, and distribution system.Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. substation is a part of an electrical generation, transmission, and distribution system.
in transforming power from high-voltage transmission to an intermediate voltage, then again at the substations transforming it down to primary voltage. The principal losses in distributing stations are transformer losses. The reason utilities use separate voltage levels is to isolate bulk power transfers from power that is serving load. This