High-resolution direct numerical simulation data for three-dimensional Navier-Stokes turbulence in a periodic box are used to study the scaling behavior of low-order velocity structure functions with positive and negative powers. Similar to high-order statistics, the low-order relative scaling exponents exhibit unambiguous departures from the Kolmogorov… (More)
We have reported previously  a low-swing latch (LSL) with superior performance-power tradeoff compared to the conventional pass-gate master-slave latch. In this paper, hardware results are presented for the proposed LSL with pulsed clock waveforms. The motivation is to combine low-voltage swing with pulsed signals to further reduce overall system power… (More)
A phenomenological model for the inertial range scaling of passive-scalar turbulence is developed based on a bivariate log-Poisson model. An analytical formula of the scaling exponent for three-dimensional passive-scalar turbulence is deduced. The predicted scaling exponents are compared with experimental measurements, showing good agreement.