Antibiotic contamination of water sources is a significant environmental and public health
concern. This contamination is classified among the most dangerous types of pollution …

Response surface designs under restricted randomization or Split-plot response surface
designs are often used in agriculture experiments and in industrial experiments due to …

In this work, four orthogonal composite designs (orthogonal-array composite designs
(OACDs), orthogonal-array composite minimax-loss (OACM) designs, orthogonal uniform …

In this paper, the stability of the prediction variance of orthogonal composite designs
(orthogonal array composite, orthogonal array composite minimax loss, orthogonal uniform …

Missing observation is a common problem in scientific and industrial experiments,
particularly in a small-scale experiment. They often present significant challenges when …

The third-order response surface designs are designs used to estimate the parameters of
the third-order polynomial model. In this paper, the orthogonal uniform composite designs …

In this paper, the prediction variance capabilities of two new second-order designs
orthogonal uniform composite designs and orthogonal array composite designs are …

Missing observations are practical problems that occur frequently even in a well-planned
experiment and can significantly impact the statistical accuracy of the experiment. This work …