In this work, we apply the systematic approach to plant-wide control design presented in [1], based on the fundamentals of process networks, thermodynamics and systems theory, to the Tennessee Eastman (TE) Challenge Process, deriving robust decentralized controllers that will ensure the stability of the complete plant. We take one step further in the control design procedure by completing it wi...

Plant-parasitic nematodes are major constraints to the productivity of tropical farming operations. Intensive land use and climatic conditions favorable to nematode development contribute to increased crop losses due to these pests. Many farmers in developing tropical countries have limited resources and management options. Cropping systems research is a relatively low-cost, low-input method of...

In this paper, we address the issue of synthesizing an optimal supervisor for real-time discrete event systems modeled by timed automata and under partial observation. Our approach is based on a method of transformation of timed automata into particular finite state automata called Set-Exp-Automata. That is, given the timed automata of the plant and the specification, we construct two Set-Exp-A...

This paper presents a systematic ap­proach for the design and implementation of temperature controller us­ing Intelligent Fuzzy-PID Hybrid Controller for Temperature control in Process Industry. The proposed approach employs PID based intelligent fuzzycontroller for determination of the optimal results than PID con­troller parameters for a previously identified process plant. Results indicate t...

Molecular systematic botany is expanding its role in forensic science. DNA based techniques have been used in criminal cases to place a suspect at the crime scene, as well as to identify strains of marijuana (1,2). These studies have used DNA obtained from individual plant specimens of a known species and have not had to overcome problems associated with DNA mixtures of unkown plant composition...

This paper gives a method to compute a controller that places closed-loop poles in a specified region, has an order equal to the number of plant control inputs and, under some assumptions, has prescribed controller dynamics. The proposed controller samples the plant outputs at a rate faster than the rate used for updating the control inputs; it is a multirate output controller or MROC. A system...

The Strawberry Discovery and Niche Process (SDNP) introduces a workbook, a new systematic method, a compact and cost-effective training process. The trainees are directed in a systematic process to make an inventory of their most valuable resources, including themselves, and plan for additional training or a career. On the basis of their discoveries, they generate: a plan for self-employment, p...

The HAZID knowledge-based system was developed as part of the EC-funded “STOPHAZ” project, whose brief was to investigate the use of software tools for improving safety in chemical process plants. HAZID models the behaviour of a plant qualitatively, so that the potential hazards of equipment failures can be detected. The models in HAZID are based around the signed directed graph, and hazard ide...

Based on the total production process of iron and steel plant, and with the general design requirements for the major operating units, the major operating sites’ overall layout relationship of the iron and steel plant is determined. Based on the production workshops, auxiliary plants, power plants, transportation facilities, the functions of departments, subsidiary production and living service...

Propolis is a honeybee product with broad clinical applications. Current literature describes that propolis is collected from plant resins. From a systematic database search, 241 compounds were identified in propolis for the first time between 2000 and 2012; and they belong to such diverse chemical classes as flavonoids, phenylpropanoids, terpenenes, stilbenes, lignans, coumarins, and their pre...