Linear mixed-effects models are commonly used to analyze clustered data structures. There numerous packages fit these in R and conduct likelihood-based inference. The implementation of resampling-based procedures for inference more limited. In this paper, we introduce the lmeresampler package bootstrapping nested linear via lme4 or nlme. Bootstrap estimation allows bias correction, adjusted sta...

Abstract Mixing and homogenization in anaerobic digesters are affected by the flow curve of sludge. The aim this study is to mathematically express dense anaerobically digested sludge behaving as thixotropic pseudoplastic fluids. Time-dependent changes two parameters, i.e., consistency index ( µ p ) n ), shear modeled using a second-order kinetic equation with coefficient that includes power fu...