T2* can be considered an observed or effective T2, whereas the first T2 can be considered the natural or true T2 of the tissue being imaged. T2* is always less than or equal to T2. T2* results principally from inhomogeneities in the main magnetic field.These inhomogeneities may be the result of intrinsic defects in the magnet itself or from susceptibility-induced field distortions produced by the tissue or other materials placed within the field.2* can be considered an observed or effective T2, whereas the first T2 can be considered the natural or true T2 of the tissue being imaged. T2* is always less than or equal to T2. T2* results principally from inhomogeneities in the main magnetic field.
The average electricity consumption of a US family of four is in the neighborhood of 50 kWh per day, or 1,500 kWh per month. Similar figures apply for Canada. Assuming an average electricity cost of $0.12 per kWh, that translates into about $6 per day for electricity, or $180 per month.
1860 kWh (annual, UK, 2007). Consumption varies significantly depending on a number of factors, such as size of house, number of occupants, daylight hours, stupidity of occupants etc. UK average annual electricity consumption per household is 4390 kWh (2007). This roughly equates to 1860 kWh per person.The data for the domestic consumption (117,126.2 GWh) and number of meters (26,670.3 x 103) are provided by The Department of Business Innovation and Skills (see 1st link).860 kWh (annual, UK, 2007). Consumption varies significantly depending on a number of factors, such as size of house, number of occupants, daylight hours, stupidity of occupants etc. UK average annual electricity consumption per household is 4390 kWh (2007). This roughly equates to 1860 kWh per person.