Abstract This paper presents an optimization approach—residual-based bootstrap averaging (RBBA)—for different types of forecast ensembles. Unlike traditional residual-mean-square-error-based ensemble approaches, the RBBA method attempts to find optimal weights in and allows for their combination into most effective additive forecast. In method, all forecasts obtain residuals that are statistica...

There are many types of light source specifically bulbs in the market with different working principles. Each them provides intensity at wavelength. In order to check energy efficiency, it is not appropriate measure certain specific wavelength for same power rating bulb. Therefore, this paper reported averaging spectroscopy method measurement between 400-700 nm before comparison carried out. It...

A mechanical system under strongly nonlinear potential and dissipative forces, with nonstationary perturbations having zero mean values, is studied. Proposing a special construction of Lyapunov function, the conditions are found, which do not influence asymptotic stability trivial equilibrium position system. These include requirements on disturbance-free relations nonlinearity orders between f...

Power electronic converters are non-linear time-dependent systems whose exact analysis without the use of computers is very difficult, and even using computer softwares requires a long time. Use of the state space averaging method, as will be mentioned, in addition to simplifying the analysis procedure which is a result of converting a time-dependent system to a time-independent one, reduces th...