If you choose Other users you can create regular accounts just fine. However, if you need to setup time limits for some accounts, it is impossible to do so. It is a feature exclusive to Your family. Not all time-restricted users I want to create are my family, and not everyone is okay with sharing their info with Microsoft.
By this means, a catalyst is produced which is readily reduced at 300Â°C - 350Â°C (570 - 660OF) but with which loss of activity caused by sintering is not a problem during several years, normal operation at temperatures up to 350Â°C (660OF).
Heskestad [11] adopts a criterion of 500C rise as defining the flame tip temperature, i.e. an actual temperature of about 520C. Taking all of the above information in account, it appears that flame tip temperatures for turbulent diffusion flames should be estimated as being around 320~400C. For small flames (less than about 1 m base diameter), continuous flame region temperatures of around 900C should be expected.