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Model Predictive Controller Employing Genetic Algorithm Optimization of Thermal Processes with Non-Convex Constraints [chapter]

Goran Stojanovski, Mile Stankovski
2012 Genetic Algorithms in Applications  
It supplies additional 20 fuel units, that can be used in the sampling period, and 10 more that can be used in the next sampling period.  ...  The presented constraint is in the case of control horizon of 5 sampling period.  ...  Model Predictive Controller Employing Genetic Algorithm Optimization of Thermal Processes with Non-Convex Constraints, Genetic Algorithms in Applications, Dr.  ... 
doi:10.5772/36143 fatcat:25c2mdv435ddzkce7hz75gr4pa

PID Advances in Industrial Control

Terrence L. Blevins
2012 IFAC Proceedings Volumes  
Major advances that improve control in the process industry have been made over the last ten years in the basic PID technology of modern distributed control systems.  ...  Also, details are provided on PID modifications that enable effective control with non-periodic measurement updates by wireless transmitters.  ...  Acknowledgments The integration of modifications into the DeltaV PID for process saturation, non-periodic update, on-demand tuning and adaptive control is due largely to the efforts of Dr.  ... 
doi:10.3182/20120328-3-it-3014.00004 fatcat:2uhxmizoxrhkbhzc7kx5wbohqa

Electrolytic treatment applied to the industrial effluent containing persistent wastes monitored by Bartha respirometric assays

Gisela Régis, Ederio Dino Bidoia
2005 Brazilian Archives of Biology and Technology  
To evaluate the speed of stabilization of the eletroctrolyzed effluents, and to evaluate the biodegradation the respirometric test of Bartha and Pramer was used.  ...  The effluent of a rubber chemical antioxidant and antiozonant producer industry, with high content of organic material was subjected to electrolytic process.  ...  This work aimed at evaluating the speed of stabilization of the effluent generated by a chemical industry, which produced antioxidants for rubber, submitted to an electrolytical process with steel electrodes  ... 
doi:10.1590/s1516-89132005000200020 fatcat:xq5srli4w5h73niedo6daurfom

Shewhart Control Chart in Microbiological Quality Control of Purified Water and its Use in Quantitative Risk Evaluation

Mostafa E. Eissa
2016 UK Journal of Pharmaceutical Biosciences  
However, the full value of the microbiological control could be accomplished by the use of control charts and statistical quality control to show the trend and behavior of bioburden.  ...  Water in pharmaceutical industry is a key ingredient in many industrial processes, including machine washing and preparation of most medicinal products.  ...  A measure of potential process capability (C pk ) and an indicator of total process capability (P pk ) benchmark value of 1.33 was used as a reference value in many industries.  ... 
doi:10.20510/ukjpb/4/i1/87845 fatcat:kspw5zcgezdprimqczmzspzpzq

Measurement and Quantification of Caking in Powders

Tim Freeman, Katrina Brockbank, Brian Armstrong
2015 Procedia Engineering  
Significant numbers of materials in the food, chemical and pharmaceutical industries, from raw feeds, additives and intermediates through to manufactured products, are sold as free-flowing, easily processable  ...  This paper will evaluate the change flow properties of powders subjected to moisture.  ...  These include periodic cycling of silo discharge systems to 'loosen' the sample or the use of anti-caking agents.  ... 
doi:10.1016/j.proeng.2015.01.104 fatcat:jkhnwnscuncmdloikh4vpxgnfy

Effect of an intervention aimed at reducing the risk of allergic respiratory disease in bakers: change in flour dust and fungal alpha-amylase levels

T Meijster, E Tielemans, D Heederik
2009 Occupational and Environmental Medicine  
This intervention programme was enrolled as part of a Dutch covenant in the flour processing industry (industrial bakeries, flour mills, ingredient producers).  ...  Modest increase in use of control measures and proper work practices were reported in most sectors, especially the use of local exhaust ventilation and decreased use of compressed air.  ...  Funding: Part of this study was financially supported by the Dutch Ministry of Social Affairs and Employment.  ... 
doi:10.1136/oem.2008.042564 pmid:19366713 fatcat:q336tmbrfza3hbh52yb3jrgbua

Evaluating environmental performance using statistical process control techniques

Charles J. Corbett, Jeh-Nan Pan
2002 European Journal of Operational Research  
This paper builds on recent work on measuring and evaluating environmental performance of a process using statistical process control (SPC) techniques.  ...  in terms of the risk of non-compliance situations arising.  ...  The second author would like to gratefully acknowledge financial support from the AT&T Foundation for Industrial Ecology and the University of California Pacific Rim Research Program.  ... 
doi:10.1016/s0377-2217(01)00155-2 fatcat:lvzwshaei5bk5jjr3mbquwwvtu

A method for detecting non-stationary oscillations in process plants

Vesa-Matti Tikkala, Alexey Zakharov, Sirkka-Liisa Jämsä-Jounela
2014 Control Engineering Practice  
Furthermore, the method is comprehensively tested with industrial data in a comparative study in which the proposed method is tested against other oscillation detection methods using industrial benchmark  ...  data and in tests on paperboard machine process .  ...  The non-linear causes include for example extensive static friction in the control valves, on-off or split range control, sensor faults, process non-linearities, and hydrodynamic instabilities.  ... 
doi:10.1016/j.conengprac.2014.07.008 fatcat:rya5fpgq55ftrbnnjugddj63ay

Microbial consortia in meat processing environments

V Alessandria, K Rantsiou, M C Cavallero, S Riva, L Cocolin
2017 IOP Conference Series: Earth and Environment  
Different levels of contamination emerged between the three plants as well as between the two sampling periods.  ...  methods (PCR-DGGE) in two different periods.  ...  Evaluating any sanitization process, particular attention has to be focused in the understanding of the state of the cells after the treatments: cells can be stressed and non culturable but may not necessarily  ... 
doi:10.1088/1755-1315/85/1/012017 fatcat:4ghsz73akre2jpmww3wxae22oe

Page 13 of California's Health Vol. 6, Issue 2 [page]

1948 California's Health  
Isolation of the process from the general work area or performing the operation during a period of absence of employees are other often-used engi- neering control methods. 5.  ...  PROCESS CONTROL Process control is becoming a very important means to eliminate health hazards. The industrial hygiene * From the Bureau of Adult Health, Division of Preventive Medical Services.  ... 

Control Quality Assessment for Processes with Asymmetric Properties and its Application to pH Reactor

Pawel D. Domanski, Maciej Lawrynczuk
2020 IEEE Access  
The majority of processes in chemical industry is nonlinear. However we often take advantage of linear approximation and analysis as the useful simplification.  ...  This paper proposes robust control performance indexes in form of the M-estimator using logistic ψ function denoted σ H and α-stable distribution scale factor γ .  ...  sampling period [52] .  ... 
doi:10.1109/access.2020.2993102 fatcat:xpv4zkcq6zhbpendf2dubw4sui

Combined analysis of job and task benzene air exposures among workers at four US refinery operations

Amanda Burns, Jennifer (Mi) Shin, Ken M Unice, Shannon H Gaffney, Marisa L Kreider, Richard H Gelatt, Julie M Panko
2016 Toxicology and industrial health  
use of similar exposure controls, (3) the comparability of benzene content of process streams and end products, (4) the ability to assign uniform job titles and task codes across all four refineries,  ...  Approximately 12,000 non-task (>180 min) personal samples associated with 50 job titles and 4000 task (<180 min) samples characterizing 24 tasks were evaluated.  ...  Funding The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was funded by ExxonMobil, a firm  ... 
doi:10.1177/0748233715619072 pmid:26862134 pmcid:PMC5477978 fatcat:434zfftg7beavluafekjq5fyb4

Financial Performance As It Relates To Pollution Control: An Empirical Analysis

Jeffrey L. Decker, Terrance Jalbert
2011 International Business & Economics Research Journal  
The paper is the first to use emissions information from a non-financial source to analyze differences between firms to changes in regulatory requirements.  ...  Differences in pollution approach between different types of firms provide an unique research setting to investigate how firms with favorable environmental reputations compare to firms with unfavorable  ...  Comparing a broader selection of firms than that used in previous studies, their sample included sixteen industries.  ... 
doi:10.19030/iber.v3i1.3655 fatcat:ksfhynp5z5ff7db536vuigbtwy

Practical use of variographics to identify losses and evaluate investment profitability in industrial processes

Hilde Tellesbø, Helle Fossheim, Kim Esbensen
2015 TOS forum  
A variogram characterization was carried out to evaluate the amplitude of the periodicity, and the quantities involved (losses), which information was used to calculate the investment pay-back time.  ...  Variographic analysis is a powerful tool for industrial technicians and process engineers to improve processes -and in the present cases for industrial managers as well for evaluating ultimate investment  ...  Such a measurement system is not acceptable in the industrial practise as it disturbs proper process control.  ... 
doi:10.1255/tosf.71 fatcat:s5vmg46o2batrixz2cm6qroppu


Jadranka Petrović
2017 Зборник радова Економског факултета у Источном Сарајеву  
The selected indicators were also compared with those of the control group, non users of IRBRS loans.  ...  The study was based on the comparison of selected performance indicators during the five-year period before (2003-2007) and the five-year period (2009-2013) after using IRBRS loans.  ...  Since the sample of the control group (IRBRS loan non-users) is selected by random sample method stratified by type of business activity, geographic disperse and type of enterprise, the share of non-users  ... 
doi:10.7251/zrefis1613017p fatcat:lrnnuigqqrdg7k3owu7t5eevvy
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