Acceptance tests are of major importance for the successful roll-out of new software products. Any brilliantly engineered software unable to suit the user’s expectations will fail in practice. Tight time-to-market and limited resources makes acceptance testing difficult. This is especially true if multiple locations for development and testing are concerned. We argue that a solution must allow ...

daily sunshine duration is one of the factors influencing the size of solar panels in a photovoltaic system. when the system is designed and the number of system components is calculated, the average of sunshine hours is usually used. however, sunshine hours are less than average and we are faced to shortage and surplus of electricity in the winter and summer, respectively. in this paper due to...

This paper develops and estimates mixture models of crop price comovements using copula functions, which allow for departures from normality during extreme market circumstances. The models also account for unique time series patterns inherent in crop price data. The paper reaches two main conclusions. First, mixture models appear to provide an easy-to-estimate approach for capturing real-life c...

Based on urban planning theory, the paper conducts a study on the D/H ratio of city road and applies a new technology BIM to make a quantitative objective analysis on the space size of road, differing from traditional subjective evaluation from the perspectives like psychology, physiology, social behavior and urban esthetics. Through the simulation and analysis on sunshine, ventilation under di...

I examine the impact of happiness on economic behavior. I use self-reported happiness data from the DNB Household Survey from the Netherlands and the German SocioEconomic Panel. I consider changes in regional sunshine as an exogenous determinant of happiness. Both long-run and transitory increases in sunshine increase happiness. Instrumenting individual happiness with regional sunshine, I find ...