The expression dBm is used to define signal strength in wires and cables at RF and AF frequencies. The symbol is an abbreviation for decibels relative to one milliwatt, where one milliwatt (1 mW) equals 1/1000 of a watt (0.001 W or 10 -3 W). This unit is commonly used in test laboratories. The dBm increment is based on the decibel , a logarithm ic measure of relative power . Suppose a signal has a power level of P mW. Then the signal strength in dBm, symbolized S dBm , is: S dBm = 10 log 10 P. A 1-mW signal has a level of 0 dBm.
These 10 animal facts will amaze you. Decortication is a term which is used to refer to the removal of a rind or peel. In a medical context, the term means removing the fibrous outer layer of tissue which covers an organ. Most typically, decortication is used in the management of certain lung conditions, most notably in tuberculosis and mesothelioma.
Ventilating (the V in HVAC) is the process of processing or replacing air in any space to provide high indoor air quality (i.e. to control temperature, replenish oxygen, or remove moisture, odors, smoke, heat, dust, airborne bacteria and carbon dioxide).entilation includes both the exchange of an air to the outside as well as circulation of air within the building. It is one of the most important factors for maintaining acceptable indoor air quality in buildings.