The present study aims to develop a dynamical model of cement milling process as well as an autoregressive model of the errors of the previous one. Modeling is based exclusively on long term industrial data sets of five cement mills. Not only the dynamics of each mill is estimated but also separate dynamical parameters are computed for each cement type processed in the same mill. Detailed infor...

Today, the cement industry is one of the major air polluting industries in the world. Hence, in this study, owing to the importance and role of contaminants from the plant, an appraisal of the emission contributions in addition to other factors have been discussed. There are several reasons behind the importance of modeling air pollutants. First, the assessment of standards for air pollution, a...

The passing of over three decades since tropical cyclone Tracy devastated Darwin on Christmas Day 1974 provided a reason to reflect upon the progress of numerical weather prediction over that period. Each decade was characterised by major model changes. In Australia, the 1970s saw the operational implementation of a 7-level baroclinic filtered model at a grid spacing of 254 km, with rudimentary...

This paper presents a new platform which can be used for testing the operational control system, developing operational optimal algorithm and process modeling algorithm. The platform is also built for the laboratory course of control engineering for industry process such as mineral, cement and power plant fields, which locates at Northeastern University in Liaoning province, China. The presente...

The Discrete Event Systems Specification (DEVS) framework is based on systems engineering principles and is used for modeling and simulation in many application domains. This framework supports a number of important features such as component based hierarchical simulation model development, scalability, reusability and distributed simulation. This paper demonstrates the application of the DEVS ...

This study was carried out in 2011 to investigate the suitability of date palm midribs (Phoenix dactelifera L.) as a lignocellulosic material for the production of wood-cement composite panels, in addition to enhancement their compatibility with cement using various pretreatments and chemical additives. Materials used for this study were midribs of fronds of different date palm varieties availa...

The Icelandic Competition Council recently ruled that a cement supplier with 75% market share did not enjoy a dominant position. The ruling was based on countervailing power of local concrete producers. To test whether there are economic arguments for the ruling, we present a simplified model of the industry and apply and adapt some recent work on bilateral oligopoly. We show that, in equilibri...