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Number of results: 69
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Abstract

In the paper the topic of Building Information Technology BIM is investigated. It is new in Polish circumstances technology for construction and for building product industry, which contribute to change and develop level of industrialization. Especially challenge raising from the information and introducing IT technology into daily practice is considered to provide changes in construction branch of economy. In Poland there is the hot need of start to introduce BIM as the common technology for owners of assets, facility management, construction entities, design offices, administration officers and many other players relative to construction data and processes. BIM technology introduction, basing on foreign case studies, results in cost savings, control and time reduction of investment processes and some more advantages. The perspective of digital buildings, digital infrastructure, digital roads, digital railways and digital cities is outlined at the perspective of technology challenge, but simply transfiguration of many fields of personal everyday life, where digitalization is already present and with the question when it will be common in professional activity, particularly in civil engineering.

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Authors and Affiliations

A. Glema
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Abstract

In many companies, along with the economic development, the use of integrated management systems is becoming more and more common, which are subject to evolution in terms of, inter alia, offered functions and new user requirements. The main purpose of this paper is to compare selected ERP (Enterprise Resource Planning) systems in the field of production planning and control on the example of the automotive industry. The paper presents the contemporary functioning of the automotive industry against the background of issues related to the integrated management systems used in them. The research part presents the proprietary methodology for the assessment of IT systems used in the automotive industry, which included a user survey. The obtained score allowed to indicate the optimal ERP class system supporting production planning and control.
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Authors and Affiliations

Robert Sika
1
ORCID: ORCID
Oliwia Wojtala
2
Jakub Hajkowski
1
ORCID: ORCID

  1. Poznan University of Technology, Faculty of Mechanical Engineering, Poland
  2. Poznan, Poland
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Abstract

Science and technology frequently contribute to one another: scientific advances lead to the development of new technologies, and new technologies broaden the experimental potential of science, enabling advancement of research. This is a motivation behind introduction of the concept of technoscience addressing the integration of science and technology – the process progressing from the beginning of the twentieth century, which has been the source of extraordinary achievements of our civilisation, but – at the same time – has engendered global socioeconomic transformations whose negative side effects may endanger humanity. This paper is devoted to an outline of ethical challenges implied by the development of technoscience, with special emphasis of those which are rooted in the development of information technologies. It is suggested that those challenges should be met by people of technoscience in a concerted effort undertaken with philosophers and educators.
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Authors and Affiliations

Roman Z. Morawski
1

  1. Politechnika Warszawska, Wydział Elektroniki Technik Informacyjnych
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Abstract

The problem considered in the paper is motivated by production planning in a foundry equipped with the furnace and casting line, which

provides a variety of castings in various grades of cast iron/steel for a large number of customers. The quantity of molten metal does not

exceed the capacity of the furnace, the load is a particular type of metal from which the products are made. The goal is to create the order

of the melted metal loads to prevent delays in delivery of goods to customers. This problem is generally considered as a lot-sizing and

scheduling problem. The paper describes a mathematical programming model that formally defines the optimization problem and its

relaxed version that is based on the conception of rolling-horizon planning

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Authors and Affiliations

J. Duda
A. Stawowy
R. Basiura
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Abstract

The paper discusses the impact of the geometry of foundry pallet components on the value of temperature gradient on the wall crosssection

during heat treatment. The gradient is one of the most important factors determining the distribution of thermal stresses in these

items. Analysis of quantitative simulation was carried out to detect possible effect of the type of connection between pallet walls and

thickness of these walls (ribs) on the interior temperature distribution during rapid cooling. The analysis was performed for five basic

designs of wall connections used in pallets. Basing on the results obtained, the conclusions were drawn on the best connection between the

ribs in foundry pallets.

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Authors and Affiliations

A. Bajwoluk
P. Gutowski
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Abstract

Mathematical programming, constraint programming and computational intelligence techniques, presented in the literature in the field of operations research and production management, are generally inadequate for planning real-life production process. These methods are in fact dedicated to solving the standard problems such as shop floor scheduling or lot-sizing, or their simple combinations such as scheduling with batching. Whereas many real-world production planning problems require the simultaneous solution of several problems (in addition to task scheduling and lot-sizing, the problems such as cutting, workforce scheduling, packing and transport issues), including the problems that are difficult to structure. The article presents examples and classification of production planning and scheduling systems in the foundry industry described in the literature, and also outlines the possible development directions of models and algorithms used in such systems.

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Authors and Affiliations

A. Stawowy
J. Duda
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Abstract

The problem considered in the paper is motivated by production planning in a foundry equipped with the furnace and casting line, which

provides a variety of castings in various grades of cast iron/steel for a large number of customers. The quantity of molten metal does not

exceed the capacity of the furnace, the load is a particular type of metal from which the products are made in the automatic casting lines.

The goal is to create the order of the melted metal loads to prevent delays in delivery of goods to customers. This problem is generally

considered as a lot-sizing and scheduling problem. The paper describes two computational intelligence algorithms for simultaneous

grouping and scheduling tasks and presents the results achieved by these algorithms for example test problems.

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Authors and Affiliations

A. Stawowy
J. Duda
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Abstract

The article presents an example of analysis of the influence of selected parameters deriving from data acquisition in foundries on the occurrence of Gas porosity defects (detected by Visual testing) in castings of ductile cast iron. The possibilities as well as related effectiveness of prediction of this kind of defects were assessed. The need to rationally limit the number of possible parameters affecting this kind of porosity was indicated. Authors also benefited from expert group's expertise in evaluating possible causes associated with the creation of the aforementioned defect. A ranking of these parameters was created and their impact on the occurrence of the defect was determined. The classic statistical tools were used. The possibility of unexpected links between parameters in case of uncritical use of these typical statistical tools was indicated. It was emphasized also that the acquisition realized in production conditions must be subject to a specific procedure ordering chronology and frequency of data measurements as well improving the casting quality control. Failure to meet these conditions will significantly affect the difficulties in implementing and correcting analysis results, from which INput/OUTput data is expected to be the basis for modelling for quality control.

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Authors and Affiliations

Z. Ignaszak
R. Sika
M. Rogalewicz
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Abstract

Access to up-to-date information on technology, innovation, source publications, and the materials and services offered in a particular industry is very important for both industrial plants and departmental research centres. It should be noted that obtaining such information using publicly available search engines such as Google, Yahoo!, Bing, Bindu (mainly used in China) is only apparently easy because, due to their versatility, they deliver results with great redundancy. This leads to the need to analyze large data sets by linguistic methods or "manually", which is very tedious and time consuming. In this situation, it was considered reasonable to undertake studies aimed at acquiring relatively simple IT tools, i.e. crawlers, which allow their users to selectively search for information in a particular problem area, which in this particular case is casting. The intention of this work was to collect and analyze the experimental material that would allow describing the characteristics of the above solutions from the point of view of the range of their application, the quality of the results achieved, and possible limitations and preferences taking into account user needs [1, 2].

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Authors and Affiliations

S. Kluska-Nawarecka
D. Wilk-Kołodziejczyk
Z. Stefański
A. Smolarek
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Abstract

The article presents tools, methods and systems used in mechanical engineering that in

combination with information technologies create the grounds of Industry 4.0. The authors

emphasize that mechanical engineering has always been the foundation of industrial activity,

while information technology, the essential part of Industry 4.0, is its main source of innovation.

The article discusses issues concerning product design, machining tools, machine tools

and measurement systems.

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Authors and Affiliations

Adam Hamrol
Józef Gawlik
Jerzy Sładek
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Abstract

A wide variety of soil and climatic conditions requires extensive study of the characteristics of the use of fertilizers and chemical plant protection products, which sometimes negatively affects the environment. Therefore, there is a need not only to know the ways and amount of application of fertilizers and chemical protectors but also to have a clear idea of the processes occurring in the soil, plants, ecology of the production environment and the rural population. This knowledge will allow us to carefully approach the practical issues of chemicalizing the crop industry and prevent possible negative consequences. To study the integrated interdisciplinary object of management accounting related to the assessment of the reproduction of agri-cultural land fertility, the functions and complex interaction of IT management, and analysis of specific situations of the impact of costs on fertilizers and chemical plant protection products on the gross crop production in the Kuban economic entities were applied. The study found that modern science has formulated the main theoretical aspects of the economic and environmental efficiency of the use of mineral fertilizers and chemical plant protection products in agriculture. Noting the significant achievements of scientists and practitioners in this field of agricultural development, we believe that the use of digital technologies for assessing the quality of soil fertility, methods and methods of using chemical agents can qualitatively improve information on the costs of their use, and determine the most rational and environmentally friendly areas. The studied experience in the application of methods indicates a fairly high accuracy in assessing the quality of soil fertility. Moreover, the results make it possible to change the associated types of managerial work, such as the planning of the procurement of fertilizers and plant protection products, precisely determine their types, and coordinate the place and time of their use.
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Authors and Affiliations

Zhanna V. Degaltseva
1
ORCID: ORCID
Victor V. Govdya
1
ORCID: ORCID
Konstantin A. Velichko
1
ORCID: ORCID

  1. Kuban State Agrarian University after I. T. Trubilin, Department of Accounting Krasnodar, st. Kalinina, 13, 350044, Russia
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Abstract

Health informatics is characterized by the need to securely store, process and transmit large amounts of sensitive medical data while ensuring interoperability with other systems. Among many standards used in such systems there are two which have gained interest in recent years and cover most of those needs: openEHR and HL7 FHIR. In this paper, both standards are discussed and compared with each other. The architecture of both systems, the similarities and differences, methods of data modeling and ensuring interoperability were presented.
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Authors and Affiliations

Jacek Kryszyn
1
Waldemar T. Smolik
1
Damian Wanta
1
Mateusz Midura
1
Przemysław Wróblewski
1

  1. Faculty of Electronics and Information Technology, Warsaw University of Technology, Warsaw, Poland
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Abstract

QIT–Quantum Information Technologies promises are very serious, greatly exceeding only technical and market levels. Development of QIT in Europe, treated as building a new infrastructural civilization level, requires a broader view of coordination, funding and priority-setting policy. Simple measures used in the case of the development of new technologies, but not creating a significant ecosystem, are insufficient in this case. Quantum technologies are poised to create a new information layer of knowledge-based society. In this essay, the author subjectively addresses some of the issues such as: what we already know and what we don't know, and what efforts are being made in Europe. Polish version of this paper was published in Przegl.Telekom.2.23.
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Authors and Affiliations

Ryszard S. Romaniuk
1

  1. Warsaw University of Technology, Poland
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Abstract

The information technologies for assessing the quality of IT-specialties graduates' training of university by means of fuzzy logic and neural networks are developed in the article. It makes possible taking into account a wide set of estimation and output parameters, influence of the external and internal factors and allows to simplify the assessing process by means of modern mathematical apparatuses of artificial intelligence.

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Authors and Affiliations

Anzhelika O. Azarova
Larysa E. Azarova
Sergii V. Pavlov
Nataliia B. Savina
Iryna S. Kaplun
Waldemar Wójcik
Saule Smailova
Aliya Kalizhanova
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Abstract

The paper presents the main issues of the management of electrical grids. Selected information technology tools supporting electrical grids maintenance are presented. In electrical infrastructure maintenance of power companies, geographic information systems are increasingly used to support the management of their resources. Their functionalities in terms of creating comprehensive databases for the electrical infrastructure of the power sector are described. The important information technology tools regarding spatial systems for supporting maintenance and operation management electrical grids and the conditions of their implementation are presented. This paper also attempts to present an innovative multidimensional evaluation of the technical and economic benefits resulting from the use of modern information technology tools for the management of energy infrastructure.
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Bibliography

  1.  Y. Sakamoto, “Improvement of operability and maintainability using new information and telecommunication technologies”, in Study Committee D2, 48th Session CIGRE. Paper D2 – 106, Paris, 2020.
  2.  M. Cepin, “Assessment of Power System Reliability. Methods and Applications”, Springer, London, 2011.
  3.  J. Piotrowski, “Systemy informatyczne i telekomunikacyjne”, Study Committee D2, 48th Session CIGRE Energetyka, problemy energetyki i gospodarki paliwowo – energetycznej, pp. 319‒323, March 2021.
  4.  S. Samek and M. Lizer, “Działalność CIGRE i CIGRE Polska”, 48th Session CIGRE 2020 – Energetyka, problemy energetyki i gospodarki paliwowo – energetycznej, pp. 157‒161, March 2021.
  5.  A.P. Apostolov, “Artificial Intelligence Applications to Electric Power System”, in Study Committee D2, 48th Session CIGRE, Paper D2 – 102. Paris, 2020.
  6.  A. Fraioli, “Failure reduction and predictive replacement approach for overhead lines using big data and advanced analytics”, Study Committee D2, 48th Session CIGRE, Paper D2 – 103, Paris, 2020.
  7.  A. Rodionov, “Application of modern information and communication technologies for improving the effectiveness power systems”, Study Committee D2, 48th Session CIGRE. Paper D2 – 112. Paris 2020.
  8.  X. Dong, “Research on the Architecture for Smart Energy Service System Based on Industrial Internet”, Study Committee D2, 48th Session CIGRE, Paper D2 – 114. Paris, 2020.
  9.  S. Guo, “The IoT solution architecture for Power Distribution and its Application”, Study Committee D2, 48th Session CIGRE, Paper D2 – 115, Paris, 2020.
  10.  M. Savinek, “Management of data from smart measuring device for predictive maintenance”, Study Committee D2, 48th Session CIGRE, Paper D2 – 130, Paris, 2020.
  11.  D. Campara, “Applying Automated Cyber Risk Assessment for Smart Grid”, Study Committee D2, 48th Session CIGRE, Paper D2 – 204, Paris, 2020.
  12.  A. Augusiak and W. Kamrat, “Automated network control and supervision”, IEEE Comput. Appl. Power, vol. 15, no. 1, pp. 20‒23, Aug. 2002, doi: 10.1109/67.976987.
  13.  M. Shahidehpour, “Energy Efficiency – perfect power system techniques”, IEEE Power Energy, vol. 6, no. 6, pp. 25‒26. Oct. 2008, doi: 10.1109/MPE.2008.929795. [Accessed: 17 Jan. 2021].
  14.  J. Girl, D. Sun, and R. Auila-Rosales, “Wanted A More Intelligent Grid”, IEEE Power Energy, vol. 7, no. 2, pp. 34‒40, Feb. 2009, doi: 10.1109/MPE.2008.931391.
  15.  W. Kamrat and T. Szczepański, “Wybrane zagadnienia budowy i eksploatacji linii przesyłowych najwyższych napięć”, Energetyka, problemy energetyki i gospodarki paliwowo – energetycznej, pp. 649‒668, Oct. 2009.
  16.  M. Bartosik, W. Kamrat, M. Kaźmierkowski, W. Lewandowski, M. Pawlik, T. Peryt, T. Skoczkowski, A. Strupczewski, and A. Szeląg, “Przesył energii elektrycznej – potrzeby, progi i bariery”, Przegląd Elektrotechniczny, vol. 11, pp. 297‒302, Nov. 2016.
  17.  T. Pakulski and J. Klucznik, “Expected range of cooperation between transmissions system operators and distribution systems operators after implementation of ENTSO-e Grids Codes”, Acta Energ. Power Eng. Quarterly, vol. 2, pp. 14‒19, Jun. 2015, doi: 10.12736/issn.2300- 3022.2015202.
  18.  P. Marchel, J. Paska, K. Pawlak, and K. Zagrajek, “A practical approach to optimal strategies of electricity contracting from Hybrid Power Sources”, Bull. Pol. Acad. Sci. Tech. Sci., vol. 68, no. 6 pp. 1543‒1551, doi: 10.24425/bpasts.2020.135377.
  19.  W. Kamrat, “Wybrane zagadnienia lokalizacji turbin wiatrowych ze względu na ich aerodynamiczne oddziaływanie na przesyłowe linie elektroenergetyczne”, Elektroenergetyka: współczesność i rozwój Biuletyn PSE, vol. 1, pp. 58‒65, 2020.
  20.  SIEMENS NIXDORF information materials, “SICAD from Siemens Nixdorf GIS for your business”, Siemens AG.
  21.  ELBUD – SAG, “Geographic information systems for the energy sector. SICAD/open as a system for managing energy network documentation”, 2017, Gdansk, Poland.
  22.  FLI-MAP, “System presentation materials from Fugro-In-park B.V.”, Leidschendam, Netherlands”, [Online] Available: www.fugro-inpark. nl [Accessed: 17 Jan. 2021].
  23.  Article-GeoEurope, “Laser Altimetry Survey Populates GIS Database”, Leidschendam, Netherlands, [Online] Available: www.fugro-inpark. nl [Accessed: 17 Jan. 2021].
  24.  W. Kamrat and M. Dubert, “Selected Problems of Energy Infrastructure Diagnostics”, Ciepłownictwo, Ogrzewnictwo, Wentylacja, vol. 9, pp. 343‒346, Oct. 2018, doi: 10.15199/9.2018.9.1.
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Authors and Affiliations

Waldemar Kamrat
1

  1. Gdansk University of Technology, Faculty of Electrical and Control Engineering, Power Engineering Department, ul. Narutowicza 11/12, 80-233 Gdansk, Poland
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Abstract

Territorisation of Intervention and Use of Endogenic Potentials in Mazovia Development Politics. Mazovia is developing rapidly in comparison to other European regions. It is also the most competitive region in Poland. Nevertheless, it is subject to a serious development duality. The regional policy to date has not been successful in curbing the increasing intraregional disparities. The article serves to indicate possible directions of Mazovia’s development which are worthy of support and fit into the Europe 2020 development model as well as the new EU regional policy paradigm. The adaptation of intervention to the differing parts of Mazovia so as to make use and develop their various endogenic potentials seems to be the right approach to increasing the region’s competitiveness and ensuring a decent standard of life in all its parts.
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Authors and Affiliations

Małgorzata Sulmicka
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Abstract

The article is devoted to the development of technogenic risk management models and formalization of the process of support in making decision in the sphere of industrial safety. The structural, informative and mathematical models, used to process information in the technological risks management, as well as a formal model of the process of support of making decision in achieving an acceptable level of technical risk are presented and analyzed.
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Authors and Affiliations

V. Lyfar
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Abstract

The dimensional accuracy of a final casting of Inconel 738 LC alloy is affected by many aspects. One of them is the choice of method and time of cooling the wax model for precision investment casting. The main objective of this work was to study the initial deformation of the complex shape of a rotor blades casting. Various approaches have been tested for cooling a wax pattern. When wax models are air cooled and without clamping in the jig for cooling, deviations from the ideal shape of the casting are very noticeable (up to 8 mm) and most are in extreme positions of the model. When the blade is cooled in the fixing jig in a water environment, the resulting deviations compared to those of air cooling are significantly larger, sometimes up to 10 mm. This itself does not mean that the final shape of the casting is dimensionally more accurate with the usage of wax models, which have smaller deviations from the ideal position. Another deformation occurs when the shell mould is produced around the wax pattern and further deformations emerge while cooling the blade casting. This paper demonstrates the first steps in describing the complex process of deformations occurring in Inconel alloy blades produced with investment casting technology by comparing results of thermal imagery, simulations in foundry simulation software ProCAST 2010, and measurements from a CNC scanning system using a Carl Zeiss MC 850. Conclusions are so far not groundbreaking, but it seems that deformations of the wax pattern and deformations of the castings do in some cases cancel each other by having opposite directions. Describing the whole process of deformations will help increase the precision of blade castings so that the models at the beginning and the blades in the end are the same.

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Authors and Affiliations

A. Herman
M. Česal
P. Mikeš
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Abstract

By the very nature of their work, castings used in furnaces for heat treatment and thermo-chemical treatment are exposed to the effect of many unfavorable factors causing their deformation and cracking, significantly shortening the lifetime. The main source of damage are the micro- and macro-thermal stresses appearing in each cycle. As the cost of furnace instrumentation forms a significant part of the total furnace cost, in designing this type of tooling it is important to develop solutions that delay the damage formation process and thus extend the casting operation time. In this article, two structural modifications introduced to pallets castings to reduce thermal stresses arising at various stages of the cooling process are proposed. The essence of the first modification consists in making technological recesses in the wall connections, while the aim of the second one is to reduce the stiffness of the pallet by placing expanders in the external walls. Using the results of simulation analyses carried out by the finite element method, the impact of both proposed solutions on the level of thermal stresses was evaluated.

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Authors and Affiliations

A. Bajwoluk
P. Gutowski
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Abstract

The article presents an integrated analytical and measurement system for evaluation of the properties of cast metals and alloys. The presented platform is an extension of the SLAG - PROP application with new modules, which allow to use information on metallurgical processes in an even more effective way, as well as to evaluate the finished product. In addition, the construction of a measuring station for the analysis of thermal processes taking place in a metal bath allows for precise observation of phenomena together with their appropriate interpretation. The article presents not only the cooling curves of certain copper alloys. The analysis also covered mechanical properties related to hardness, finished products depending on the mold in which the products were cast. In the literature one can find information about the mechanical properties of products in the improved state, usually after plastic or thermal treatment, omitting their properties obtained as a result of a naturally made casting. The article also presents the method of placing information in the database using a convenient graphical tool.

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Authors and Affiliations

S. Biernat
A.W. Bydałek
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Abstract

In order to predict the distribution of shrinkage porosity in steel ingot efficiently and accurately, a criterion R√L and a method to obtain its

threshold value were proposed. The criterion R√L was derived based on the solidification characteristics of steel ingot and pressure

gradient in the mushy zone, in which the physical properties, the thermal parameters, the structure of the mushy zone and the secondary

dendrite arm spacing were all taken into consideration. The threshold value of the criterion R√L was obtained with combination of

numerical simulation of ingot solidification and total solidification shrinkage rate. Prediction of the shrinkage porosity in a 5.5 ton ingot of

2Cr13 steel with criterion R√L>0.21 m・℃1/2・s

-3/2 agreed well with the results of experimental sectioning. Based on this criterion,

optimization of the ingot was carried out by decreasing the height-to-diameter ratio and increasing the taper, which successfully eliminated

the centreline porosity and further proved the applicability of this criterion.

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Authors and Affiliations

C. Zhang
L. Zhang
Y. Bao
M. Wang
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Abstract

The paper outlines the methodology of virtual design of a foundry plant as a system. The most important stage in the procedure involves the development of a model defined as a set of data about the system. Model development involves two stages: defining the model’s architecture and specifying the model data in the form of parameters and input-output relationships. The structure is understood as configuration of machines and transport units, representing the sub-systems and system components. As the main purpose of the simulation procedure is to find the characteristics of the system’s behaviour, the merits of the iterative method involving analysis, synthesis and evaluation of results are fully explored.

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Authors and Affiliations

A. Stawowy
E. Ziółkowski
M. Brzeziński
R. Wrona
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Abstract

The article presents a study on the effectiveness of the foundries using Data Envelopment Analysis (DEA) method. The aim of the article

is to analyze the usefulness of DEA method in the study of the relative efficiency of the foundries. DEA is a benchmarking technique

based on linear programming to evaluate the effectiveness of the analyzed objects. The research was conducted in four Polish and two

foreign plants. Evaluated foundries work in similar markets and have similar production technology. We created a DEA model with two

inputs (fixed assets and employment) and one output (operating profit). The model was produced and solved using Microsoft Excel

together with its Solver add-in. Moreover, we wrote a short VBA script to perform automating calculations. The results of our study

include a benchmark and foundries’ ranking, and directions to improve the efficiency of inefficient units. Our research has shown that

DEA can be a very valuable method for evaluating the efficiency of foundries.

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Authors and Affiliations

A. Stawowy
J. Duda
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Abstract

This work presents the project of the application of Case-based reasoning (CBR) methodology to an advisory system. This system should give an assistance by selection of proper alloying additives in order to obtain a material with predetermined mechanical properties. The considered material is silumin EN AC-46000 (hypoeutectic Al-Si alloy) that is modified by the addition of Cr, Mo, V and W elements in the range from 0% to 0.5% in the modified alloy. The projected system should indicate to the user the content of particular additives so that the obtained material is in the chosen range of parameters: tensile strength Rm, yield strength Rp0.2, elongation A and hardness HB. The CBR methodology solves new problems basing on the solutions of similar problems resolved in the past. The advantage of the CBR application is that the advisory system increases knowledge base as the subsequent use of the system. The presented design of the advisory system also considers issues related to the ergonomics of its operation.
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Authors and Affiliations

G. Rojek
K. Regulski
S. Kluska-Nawarecka
D. Wilk-Kołodziejczyk

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