(color online) Measured temperature changes of NiTi alloys in the loading and unloading process with an applied strain of 7%. The open triangles correspond to the measured values of trained poly-crystalline NiTi alloy with applied strain of 5.5%.^[28] Open cycles correspond to the measured values of the poly-crystalline Ni_50.8Ti_49.2 alloy with applied strain of 4%.^[31] Open diamonds correspond to measured values of poly-crystalline NiTi wires with applied strain of 8%.^[15] The open down-triangles correspond to measured values of NiTi films with applied strain of 6%.^[30] Open stars correspond to the measured values in [148] orientation of NiTi single crystals with applied strains of 4%^[29] and 4.25%.^[23]