Abstract: A method of conducting a racing series for competitors and team owners is disclosed. The racing series has a plurality of races divided into a first and second set of races with competitors racing in both sets of races. The competitors and team owners are awarded points after each race, with those points being adjusted between the two sets of races. The points of only a predetermined number of competitors and/or team owners are adjusted between the sets of races. Awards, including a championship, are awarded based on the points accumulated during the racing series.

Abstract: A method of calibrating a gas sensor that generates an output related to the concentration of a sensed gas, the method comprising: i) obtaining the value of said output or a related value at each of a set of known values of a first variable and at each of a set of known values of a second variable, one of the variables being gas concentration; ii) for each value of said second variable, determining a first best fit function relating said output or related value to the first variable, each best fit function utilizing at least one coefficient whose value is determined; iii) for the, or the corresponding, coefficient values from each of the first best fit functions, determining a second best fit function relating said coefficient to the second variable, and replacing the coefficient values in the first best fit functions by the second best fit function, and, iv) repeating step iii) for each further coefficient, if any, in the first best fit functions so as to generate a final function relating said output or

Abstract: A method of calibrating a gas sensor that generates an output related to the concentration of a sensed gas, the method comprising: i) obtaining the value of said output or a related value at each of a set of known values of a first variable and at each of a set of known values of a second variable, one of the variables being gas concentration; ii) for each value of said second variable, determining a first best fit function relating said output or related value to the first variable, each best fit function utilizing at least one coefficient whose value is determined; iii) for the, or the corresponding, coefficient values from each of the first best fit functions, determining a second best fit function relating said coefficient to the second variable, and replacing the coefficient values in the first best fit functions by the second best fit function, and, iv) repeating step iii) for each further coefficient, if any, in the first best fit functions so as to generate a final function relating said output or

Abstract: A method of conducting a racing series for competitors and team owners is disclosed. The racing series has a plurality of races divided into a first and second set of races with competitors racing in both sets of races. The competitors and team owners are awarded points after each race, with those points being adjusted between the two sets of races. The points of only a predetermined number of competitors and/or team owners are adjusted between the sets of races. Awards, including a championship, is awarded based on the points accumulated during the racing series.

Abstract: A method of conducting a racing series for competitors and team owners is disclosed. The racing series has a plurality of races divided into a first and second set of races with competitors racing in both sets of races. The competitors and team owners are awarded points after each race, with those points being adjusted between the two sets of races. The points of only a predetermined number of competitors and/or team owners are adjusted between the sets of races. Awards, including a championship, is awarded based on the points accumulated during the racing series.

Abstract: An air-heating gas burner has a housing which includes a fuel gas supply passage and an air supply passage which open into a combustion zone defined between walls which extend downstream of outlets for the gas and air. Combustion products emerging from said combustion zone are confined between further walls which extend downstream to a location at which the combustion process is substantially complete. The burner is intended for mounting in an air conduit and the combustion products emerging from between the further walls have a particularly low content of oxides of nitrogen.