A British Thermal Unit (BTU) is an approximation of the amount of energy required to heat 1lb (one pound) of water from 39Â°F to 40Â°F (degrees Fahrenheit), and is roughly equal to 1.055 KJoules.Simplified, 1 BTU is roughly the amount of heat produced by burning a single wooden match.TUs are âBritish Thermal Unitsâ, the unit in which radiator efficiency is measured. Factors such as room dimensions, window size and wall material are used to calculate the required outputs of radiators, in order to adequately heat a room.
A nerve conduction study (NCS), also called a nerve conduction velocity (NCV) test--is a measurement of the speed of conduction of an electrical impulse through a nerve.NCS can determine nerve damage and destruction. During the test, the nerve is stimulated, usually with surface electrode patches attached to the skin.he nerve conduction velocity (speed) is then calculated by measuring the distance between electrodes and the time it takes for electrical impulses to travel between electrodes. A related procedure that may be performed is electromyography (EMG).
In this activity you will determine the relationship between conductivity and concentration of sodium chloride (salt, NaCl). Conductivity measures the ability of an aqueous solution to conduct electricity and is determined by the presence of electrolytes (sodium chloride in this experiment).As the salt concentration increases, conductivity increases. Data Collection. 1. Record your conductivity measurements.n this activity you will determine the relationship between conductivity and concentration of sodium chloride (salt, NaCl). Conductivity measures the ability of an aqueous solution to conduct electricity and is determined by the presence of electrolytes (sodium chloride in this experiment).