Healthcare wastes are highly infectious and management of healthcare waste is of great importance due to its potential environmental hazards and public health risks. In recent years, many efforts have been made by ...

Sri Lankan share market returns have wave like patterns. A wave can be viewed either in time domain or in the frequency domain. The frequency domain analysis is known as Spectral Analysis or Fourier analysis. Spectral analysis ...

Forecasting a time series is generally done by using autoregressive integrated moving average (ARIMA) models. The main drawback of this technique is that the time series should be stationary. In reality, this assumption ...