This work presents a nonlinear model predictive control scheme with novel structure of observers aiming to create methodology that allows feasible implementations in industrial anaerobic reactors. In this way, new step-by-step procedure has been proposed and tested by solving two specific drawbacks reported the literature responsible for inefficiencies those systems real environments. Firstly, ...

A unifying mathematical formulation is needed to move from one-off digital twins built through custom implementations robust twin at scale. This work proposes a probabilistic graphical model as formal representation of and its associated physical asset. We create an abstraction the asset–twin system set coupled dynamical systems, evolving over time their respective state spaces interacting via ...

Abstract This work investigates the importance of verification and validation (V&V) to achieve predictive scale-resolving simulations (SRSs) turbulence, i.e., computations capable resolving a fraction turbulent flow scales. Toward this end, we propose novel but simple V&V strategy based on grid physical resolution refinement studies that can be used even when exact initial conditions ar...

OBJECTIVE To assess the psychometric properties of a scale measuring mothers' perceptions of readiness for discharge after birth. DESIGN Psychometric analyses including construct validity using factor analysis and known groups comparisons, predictive validity, and reliability. Data were collected at discharge and 6 weeks postdischarge. SETTING Tertiary-level perinatal center in the Midweste...

objective: to determine the diagnostic value of serum white blood cell (wbc) count, fever (>38˚c) and wbc rise (>10%) for bacterial meningitis in patients with severe traumatic brain injury (tbi). m et h o d : this cross-sectional study was conducted in shahid rajaei hospital affiliated with shiraz university of medical sciences during a 1-year period from 2013 to 2014. we included consecutivel...