31. How do I solve for the time constant ? 32. For example ITU-R 468 noise weighting uses a special rectifier incorporating two cascaded charging time constants . 33. Experimental methods for measuring these time constants include fluorescence anisotropy, NMR, flow birefringence and dielectric spectroscopy. 34. A long time constant can result in temporal summation, or the algebraic summation of repeated potentials. 35. In a radioactive decay process, this time constant is also the mean lifetime for decaying atoms. 36. These time constants are one to two orders of magnitude greater than the shorter time constant . 37. The RC time constants are adjusted to match. 38. These time constants are one to two orders of magnitude greater than the shorter time constant. 39. Augmentation is differentiated from the three other components of enhancement by its time constant of decay. 40. Earlier designs had quite-different thermal time constants .