Feedback is a powerful and ubiquitous technique both in classical quantum system control. Its standard implementation relies on measuring the state of system, processing signal, feeding it back to system. In physics, however, measurements not only read out but also modify irreversibly. Coherent feedback different kind that coherently processes feeds signals without actually Here, we report expe...

7 Cloud radiative kernels and histograms of cloud fraction, both as functions of cloud 8 top pressure and optical depth, are used to quantify cloud amount, cloud height and cloud 9 optical depth feedbacks. The analysis is applied to doubled CO2 slab-ocean simulations 10 from ten global climate models participating in the Cloud Feedback Model Intercomparison 11 Project. In the ensemble mean, tot...

Wideband chaos is of interest for applications such as random number generation or encrypted communications, which typically use optical feedback in a semiconductor laser. Here, we show that replacing conventional optical feedback with phase-conjugate feedback improves the chaos bandwidth. In the range of achievable phase-conjugate mirror reflectivities, the bandwidth increase reaches 27% when ...

corrective feedback (cf) and its different types have long absorbed many scholars and practitioners. as ellis (2009) mentioned some experimental studies need to be carefully designed to discover the relative effectiveness of each of these cf techniques. the goal of this qualitative study was to discover whether the employment of different cf strategies could bring about an attitudinal shift. to...

introduction: laser tissue soldering using albumin and indocyanine green dye (icg) is an effective technique utilized in various surgical procedures. the purpose of this study was to perform laser soldering of rat skin under a feedback control system and compare the results with those obtained using standard sutures. material and methods: skin incisions were made over eight rats’ dorsa, which w...