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1
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EN
In the paper, we present the main assumptions of ontology formulation and knowledge modeling in the form of relational database. This approach simplifies the development of knowledge mining tools which may use SQL together with attributive logic. The paper presents a concept and principles of ontology formulation for the needs of collecting the technological knowledge. The relational model of database is used as a tool for ontology developing. An example was given of how to model the ontology along with the example of the rules used in search for information. The results of our preliminary works confirm the correctness of our assumptions and enable drawing the conclusion, that well-known and reliable relational databases may be used as an efficient tool for ontology development.
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Content available Engineering graphics role in CAD literacy
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tom Vol. 13
14--18
EN
The paper outlines the importance of engineering graphics skills in the background knowledge of engineering education. This topic becomes especially important at the age of rapid economic and technologic changes in the society. An approach will be discussed about what and how we teach to develop the present-day engineering graphics communication skills in Riga Technical University in the context of general infomedia literacy.
PL
W pracy przeanalizowano możliwości wykorzystania różnych modeli chmury obliczeniowej do permanentnej edukacji. Omówiono czynniki, jakie winny być spełnione, aby można ją było wykorzystać w procesie dydaktycznym. Zwrócono uwagę na aspekty ekonomiczne wprowadzania chmury obliczeniowej do edukacji, a zwłaszcza edukacji permanentnej.
EN
In this work possible use of different models of the computing cloud in permanent education is analysed. Selected criteria are discussed that are needed for their effective use in the educational process. A special attention is drawn to economical aspects of the introduction of the computing cloud to education, especially to the permanent education.
4
Content available remote ICT usage in industrial symbiosis: problem identification and study design
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2019
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tom Vol. 18
685--692
EN
Industrial symbiosis is a favored approach to balancing industry's economic growth and its environmental impact on a regional scale. Although the scientific literature reports a multitude of examples of industrial symbiosis around the world, this approach and its related concepts are not considered to be widespread in practice, due to various barriers. Information and management barriers are seen as significant obstacles to industrial symbiosis; however, they have not been adequately investigated yet. Empirical research capturing the perception of industrial actors is lacking. This applies especially to information and communication technology designed to reduce informational barriers. Therefore, in this research-in-progress paper, we will first examine these aspects by discussing related publications. In the second step, we develop a study design involving an online questionnaire to examine the extent of managerial and informational barriers that prevent industrial symbiosis as well as the perception of corresponding technological support.
EN
Mathematical modeling of thermal processes combined with the reversible phase transitions of type: solid phase – liquid phase leads to formulation of the parabolic boundary problems with the moving boundary. Solution of such defined problem requires, most often, to use sophisticated numerical techniques and far advanced mathematical tools. Excellent illustration of the complexity of considered problems, as well as of the variety of approaches used for finding their solutions, gives the papers [1-4]. In the current paper, the authors present the, especially attractive from the engineer point of view, analytic-numerical method for finding the approximate solution of selected class of problems which can be reduced to the one-phase solidification problem of a plate with the unknown a priori, varying in time boundary of the region in which the solution is sought. Proposed method is based on the known formalism of initial expansion of the sought function describing the temperature field into the power series, some coefficients of which are determined with the aid of boundary conditions, and on the approximation of the function defining the location of freezing front with the broken line, parameters of which are numerically determined.
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tom nr 2
CD-CD
PL
Ciągły rozwój technologii informatycznych i coraz powszechniejsze ich zastosowanie we wszystkich dziedzinach życia oraz działalności gospodarczej skłaniają do zastanowienia się nad istniejącymi możliwościami informatyzacji systemów zarządzania jakością. Systemy te znacznie usprawniają zarządzanie informacją i dokumentacja dotycząca jakości, pozwalając tym samym na wzrost efektywności funkcjonowania systemu. W wyniku komputeryzacji można znacząco ograniczyć liczbę występujących błędów, zwiększając jednocześnie szybkość przepływu informacji dotyczących procesów w przedsiębiorstwie i stosunków z klientem.
EN
The continuous development of technologies of information technology and more and more general their use in all spheres of the life and the economic activity give pause over existing possibilities of the informationalization of quality management systems. These systems considerably improve the management with the information and the records concerning quality, permitting consequently development of the effectivity of the kelter of the system. As result of the computerization one can significantly limit the number of occurrent errors, enlarging simultaneously the speed of the information flow of concerning processes in the enterprise and intercourse with the customer.
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tom nr 11
73--88
EN
The article presents a business model of using AR / VR technologies in the field of education. The analysis of the market of AR / VR-technologies, growth opportunities and constraints to the development of this area. The key factors of using AR / VR­technologies in the field of education are for med. The calculation of the draft business model for the implementation of AR / VR-technologies in the field of education was carried out, the profitability of the project was calculated. lt is proposed to use AR/ VR technologies in the field of education as a business model for a startup.
PL
W artykule przedstawiono model biznesowy wykorzystania technologii AR / VR w dziedzinie edukacji. Analiza rynku technologii AR /VR, możliwości wzrostu i ograniczeń rozwoju tego obszaru. Tworzone są kluczowe czynniki wykorzystania technologii AR / VR w dziedzinie edukacji. Obliczenie projektu modelu biznesowego dla wdrożenia technologii AR/ VR w dziedzinie edukacji, obliczono opłacalność projektu. Proponuje się wykorzystanie technologii AR/ VR w dziedzinie edukacji jako modelu biznesowego dla startupu.
8
Content available remote Total productive maintenance on example of automated foundry lines
67%
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tom Vol. 9, iss. 3
71-74
EN
Within framework of the presented study one has performed analysis of stoppages in automatic foundry lines operation, and basing on assumptions from complex maintenance system has undertaken himself to develop a service maintenance schedule for machinery installed in the line. Moreover, one has presented general assumptions of TPM system operated in conditions of series and multi-series production of cast iron castings. One has constructed operational database and has elaborated a list of line stoppage causes within a year. One has proposed a possibility of implementation of manufacturing systems modeling and simulating technique in management of production machinery operation in a foundry shop. Within framework of the simulation experiment one has developed schedules of production, schedules of maintenance and has forecasted indices of general productivity of the machinery for a various scenarios of events on example of casting line having in-series structure of operational reliability. In course of the study there was implemented ARENA universal software package to modeling and simulation of the manufacturing systems.
EN
Mobile solutions revolutionize healthcare systems as well as the way of management in this area. The complex and dynamic character of healthcare organizations requires a special kind of management in the areas of healthcare knowledge and electronic health records (EHRs). Mobile applications can be very useful and helpful in the terms of information providing, but their role is not limited to transferring it between the doctors, patients and managerial staff. In this paper the role of mobile applications in the work of health care professionals (HCPs) has been shown.This article highlights the role of mobile applications in facilitating HCPs’ work in the terms of time management and EHRs storage and management.
PL
Rozwiązania mobilne są bardzo silnym trendem w systemach opieki zdrowotnej, jak i w zarządzania w tym obszarze. Złożony i dynamiczny charakter organizacji opieki zdrowotnej wymaga specjalnego rodzaju zarządzania w zakresie wiedzy medycznej i elektronicznych rejestrów medycznych. Aplikacje mobilne mogą być bardzo przydatne i pomocne w zakresie dostarczania informacji, ale ich rola nie ogranicza się do przenoszenia ich między lekarzy, pacjentami i personelem kierowniczym. W niniejszym artykule uwypuklono rolę aplikacji mobilnych w pracy pracowników służby zdrowia (HCPS), podkreślono rolę aplikacji mobilnych w ułatwianiu pracy pracownikom służby zdrowia w zakresie zarządzania czasem i EHRs przechowywania i zarządzania.
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tom z. 148
845--860
EN
Purpose: The objective of the paper is to use text mining to identify leading research domains concerning the smart city following an analysis of research articles with a high citation index according to the Web of Science. Design/methodology/approach: An original method is proposed for analysing academic texts using the R language, tokenisation, lemmatisation, n-grams and correspondence analysis. The author analysed fifty of the most cited articles indexed in the Web of Science from 2014 to 2019. Findings: The paper presents the advantages and drawbacks of the proposed method of analysing research publications. The assets include automation and repeatability of the analysis of a large number of documents and improved knowledge about links among the articles in terms of research domains. The disadvantage is the loss of information from diagrams and figures. The method identified two leading research domains related to the notion of the smart city, technologies and systems. The analysed publications were categorised by selected keywords. Research limitations/implications: Future work should include further refinement of the assumptions for the method, analyses of a more significant number of research texts and a narrowing down of the domain of the smart city. It is desirable to consider other functional domains of the city, such as energy, public health, environmental protection or transport. Practical implications: The proposed method can complement a standard literature analysis regarding the smart city. The leading research domains related to the smart city in the analysed articles were systems and technologies employed to improve how the city operates. Social implications: Text mining can be employed by various experts focusing on the smart city and constitutes a refreshing complement for other research methods, such as questionnaire surveys, interviews or observations. Originality/value The publication can be useful for researchers from various fields and managers seeking to create and use simple, useful methods and tools for analysing unstructured text documents for decision-making. The paper proposes a separate text mining analysis of abstracts and whole documents using n-grams. This yielded a more precise list of areas relevant to the smart city. The grouping was done using correspondence analysis of the fifty most cited articles indexed in the Web of Science from 2014 to 2019.
EN
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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nr 4
211-217
EN
The article is a report on the project carried out by the author co-financed by the NationalCenter for Research and Development from European funds WND-POWR.03.01.00-00-U055/17-01entitled: With information technology to the mathematical and natural land. It was dedicated toeighth grade students of elementary school in Warsaw. The main goal was to increase/developgeneral development competences in the field of mathematics and natural sciences in close correlation with information technologies related to correct argumentation, critical and independentthinking, logic and heuristics. Short project characteristics and analysis of students’ knowledgegrowth in physics, computer science and mathematics were presented.
PL
Artykuł jest raportem z przeprowadzonego przez autorkę projektu współfinansowanego ze środków Narodowego Centrum Badań i Rozwoju ze środków europejskich WND-POWR.03.01.00-00--U055/17-01 pt. „Z technologią informacyjną do matematyczno-przyrodniczej krainy”. Był on dedykowany uczniom klas VIII szkoły podstawowej w Warszawie. Głównym jego celem było podniesienie/rozwój kompetencji ogólnorozwojowych w zakresie nauk matematyczno-przyrodniczych w ścisłej korelacji z technologiami informacyjnymi, związanych z poprawnym argumentowaniem, krytycznym i samodzielnym myśleniem, logiką i heurystyką. Przedstawiono krótką charakterystykę projektu oraz analizę przyrostu wiedzy uczniów w zakresie fizyki, informatyki i matematyki.
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