We present a tool, called Cascade, to check assertions in C programs as part of a multi-stage verification strategy. Cascade takes as input a C program and a control file (the output of an earlier stage) that specifies one or more assertions to be checked together with (optionally) some restrictions on program behaviors. For each assertion, Cascade produces either a concrete trace violating the...

a simple semi-phenomenological model, which accurately predicts the dependence of thresholdcurrent for temperature of resonant-phonon three well quantum cascade laser based on verticaltransitions is offered. we found that, the longitude optical phonon scattering of thermally excitedelectrons is the most important limiting factor for thermal performance of high frequency thz qcls.in low frequenc...