Rate Rate is the change as time (t) passes. Graphs which have time as the independent variable are standard means of depicting rate. The slope of a "vs. time" graph tells the rate. Because temperature is proportional to heat in a sample of material (if it is not freezing or melting) temperature vs. time graphs are indications of energy change. Rate of heating (or cooling) r = Q÷t (Note: Here T is used to represent Temperature, whereas t is used to represent time. Be sure you keep the UPPER and lower case t's straight. )
Temperature rises as hay or fodder ferments, dries, or cures.
Heating is an ancient and normally stable enhancement that permanently transforms gems. Gemologists use low, medium and high temperatures in furnaces to alter gemstone color, clarity and phenomena. Nearly all of the world’s ruby, sapphire and tanzanite owe their color and clarity to heating. Many aquamarines are also heated to eliminate traces of green and gray. For a list of stone treatments, frequency and stability of treatments, and care instructions, visit our Gemstone Enhancements and Treatments chart.
Heating can lighten, darken, or change the color of some gems.
the process of becoming warmer; a rising temperature
Heating is the process of adding heat energy causing a rise in temperature, or a transfer of sensible heat into latent heat. Heating can take different forms including electric and gas space heating, regenerative heating and thermodynamic (reverse-cycle) heating. A heating system transfers heat from a source of energy through a distribution network to spaces to be heated. These systems include central heating, direct-heating, direct-return heating, down-feed heating and dry return heating systems.
An increase in temperature which causes damage to marine cargo.
Controlled heating to approximately 80°C above room temperature by, for example, induction heating equipment electric ovens, heating plates or clean oil baths for easier assembly.
Controlled heating to approximately 80 ?C above room temperature to facilitate assembly. Relevant equipment includes "INA-Therm", electric ovens, heating plates or clean oil baths.