This paper presents an application of a new stochastic programming method for vehicle side impact design. Nonlinear response surface models are employed as the 'real' models for the side impact related performance functions to conduct this study. The main goal is to enhance vehicle side impact crash performance while minimizing vehicle weight under various uncertainties. The new algorithm allev...

The growth lag phase during microbial fermentation reduced productivity and equipment efficiency. Inoculum age and size were the two important variables considered in fermentation optimisation. Previous studies investigated these two variables separately, in contrast to the orthogonal or use of response surface modelling method by recent papers. In nearly all cases, the inoculum from the late e...

The performance of an algorithm often largely depends on some hyper parameter which should be optimized before its usage. Since most conventional optimization methods suffer from some drawbacks, we developed an alternative way to find the best hyper parameter values. Contrary to the well known procedures, the new optimization algorithm is based on statistical methods since it uses a combination...

Original scientific paper In this paper a systematic exploration of a typical two-stroke slow speed marine diesel propulsion shafting design space is performed. First, a set of the four most influential design parameters is defined, consisting of shafting stiffness, propeller, turning wheel and tuning wheel mass moments of inertia. Then, a full set of 625 design points is defined. For each desi...

Introduction. This article presents the development of mathematical models related to effect initial content dry matter, yeast, and yeast energizer on fermentation rate, alcohol content, matter in finished product – mead.
 Study objects methods. The were developed by using response surface methodology (RSM). contents tested concentration ranges 150–600 mg/L, 16.3–24.4%, 140–500 respectivel...