Ograniczanie wyników
Czasopisma help
Autorzy help
Lata help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników

Znaleziono wyników: 312

Liczba wyników na stronie
first rewind previous Strona / 16 next fast forward last
Wyniki wyszukiwania
Wyszukiwano:
w słowach kluczowych:  information technology
help Sortuj według:

help Ogranicz wyniki do:
first rewind previous Strona / 16 next fast forward last
EN
Nowadays, applied computer-oriented and information digitalization technologies are developing very dynamically and are widely used in various industries. One of the highest priority sectors of the economy of Ukraine and other countries around the world, the needs of which require intensive implementation of high-performance information technologies, is agriculture. The purpose of the article is to synthesise scientific and practical provisions to improve the information technology of the comprehensive monitoring and control of microclimate in industrial greenhouses. The object of research is nonstationary processes of aggregation and transformation of measurement data on soil and climatic conditions of the greenhouse microclimate. The subject of research is methods and models of computer-oriented analysis of measurement data on the soil and climatic state of the greenhouse microclimate. The main scientific and practical effect of the article is the development of the theory of intelligent information technologies for monitoring and control of greenhouse microclimate through the development of methods and models of distributed aggregation and intellectualised transformation of measurement data based on fuzzy logic.
EN
The accident at the Chornobyl Nuclear Power Plant (ChNPP) in Ukraine in 1986 became one of the largest technological disasters in human history. During the accident cleanup, a special protective structure called the Shelter Object was built to isolate the destroyed reactor from the environment. However, the planned operational lifespan of the Shelter Object was only 30 years. Therefore, with the assistance of the international community, a new protective structure called the New Safe Confinement (NSC) was constructed and put into operation in 2019. The NSC is a large and complex system that relies on a significant number of various tools and subsystems to function. Due to temperature fluctuations and the influence of wind, hydraulic processes occur within the NSC, which can lead to the release of radioactive aerosols into the environment. The personnel of the NSC prevents these leaks, including through ventilation management. Considering the long planned operational term of the NSC, the development and improvement of information technologies for its process automation is a relevant task. The purpose of this paper is to develop a method for managing the ventilation system of the NSC based on neuro-fuzzy networks. An investigation of the current state of ventilation control in the NSC has been conducted, and automation tools for the process have been proposed. Using an adaptive neuro-fuzzy inference system (ANFIS) and statistical data on the NSC's operation, neuro-fuzzy models have been formed, which allows to calculate the expenses of the ventilation system using the Takagi-Sugeno method. The verification of the proposed approaches on a test data sample demonstrated sufficiently high accuracy of the calculations, confirming the potential practical utility in decision-making regarding NSC’s ventilation management. The results of this paper can be useful in the development of digital twins of the NSC for process management and personnel training.
PL
Awaria w Czarnobylskiej Elektrowni Jądrowej (ChNPP), która miała miejsce w Ukrainie w 1986 roku, stała się jedną z największych katastrof technologicznych w historii ludzkości. Podczas likwidacji awarii zbudowano specjalną strukturę ochronną – Obiekt "Ukrycie", mającą na celu izolację zniszczonego reaktora od otoczenia. Jednak planowany okres eksploatacji sarkofagu "Ukrycie" wynosił tylko 30 lat, dlatego przy wsparciu społeczności międzynarodowej zbudowano nową strukturę ochronną – "Nowa Bezpieczna Powłoka" (NSC), która została oddana do użytku w 2019 roku. NSC jest dużym i skomplikowanym systemem, którego funkcjonowanie zapewnia znaczna liczba różnych narzędzi i podsystemów. Ze względu na zmienne temperatury i wpływ wiatru, w NSC zachodzą procesy hydrauliczne, które mogą prowadzić do uwolnienia promieniotwórczych aerozoli do otoczenia. Personel NSC zapobiega tym wyciekom, między innymi poprzez zarządzanie wentylacją. W związku z długim planowanym okresem eksploatacji NSC, istotnym zadaniem jest rozwój i doskonalenie technologii informatycznych dla automatyzacji procesów. Celem pracy jest opracowanie metody zarządzania systemem wentylacji NSC opartej na rozmytych sieciach neuronowych. Przeprowadzono badania istniejącego stanu rozwiązywania problemów zarządzania wentylacją NSC oraz wybrano narzędzia do automatyzacji procesu. Za pomocą adaptacyjnego systemu wnioskowania neuro-rozmytego (ANFIS) i danych statystycznych dotyczących funkcjonowania NSC, stworzono modele neuro-rozmyte, które pozwalają na kalkulację kosztów systemu wentylacyjnego metodą Takagi-Sugeno. Weryfikacja zaproponowanych podejść na próbce kontrolnej danych wykazała wystarczająco wysoką dokładność obliczeń, co potwierdza możliwość ich praktycznego zastosowania w procesie podejmowania decyzji dotyczących zarządzania wentylacją NSC. Wyniki pracy mogą być również przydatne przy tworzeniu cyfrowe bliźniaków NSC w celu zarządzania procesami i szkolenia personelu.
EN
The handicraft sector is one of the sectors whose sales have increased rapidly in Indonesia. The problem, however, is the unpreparedness of craft SMEs in applying information technology in their sales activities. In addition, there are also problems in understanding the ability of UKM entrepreneurship on the characteristics of online sales. The purpose of this study is to analyze the effect of entrepreneurship and information technology on the quality of e-Services and their impact on customer value in craft SMEs in Indonesia. The results of the study show that there is an influence of entrepreneurship and information technology on the quality of online services and their impact on customer value. Entrepreneurship does not have a direct effect on online service quality and customer value but the entrepreneurship variable has a significant effect on customer value through the quality of e-Services and the quality of e-Services becomes the intervening variable in this study.
EN
Purpose: The purpose of the paper is to illustrate to what extent, during the Covid-19 pandemic, leaders representing enterprises operating in Poland, use IT in motivating employees. Design/methodology/approach: The paper is based on a literature review, secondary materials in the form of research reports, describing the level of digital competence of Poles, employees and leaders, as well as own research. The results of pre-pandemic research indicate a low level of digital competence of a leader. With reference to this research, the paper presents part of the results of the author's study on digital leadership. Its implementation took place in 2021. 163 companies, located in Poland, participated in it. The study used a diagnostic survey method, the CAWI technique and the author's survey questionnaire. Findings: The results of the survey indicate that there is a fairly good level of digital competence among leaders, at least in terms of motivation. No correlation is noted between the use of IT in motivating employees with the scope of the company, the form of ownership of the company, the owner's capital, the size of the company and the respondent (manager, IT manager, owner, board member). Only in the case of the degree of computerization of the company does such a correlation appear. Research limitations/implications: When interpreting the results presented in the paper, it is worth bearing in mind some limitations accompanying the study. The first concerns the difficulty of identifying whether the surveyed managers can be called leaders. The second limitation is related to the use of self-assessment in assessing the digital competence of managers. In this regard, it would be worthwhile to conduct a survey of employees to verify the level of digital competence declared by managers. Originality/value: The paper deals with the use of IT in motivating employees, an under 27 identified but important problem, especially during the Covid-19 pandemic. The results of the study can be a guide to what factors to pay attention to when improving the digital competence of the leader and employees.
EN
Purpose: The aim of the work is to present the concept of an application that enables people from various industries to establish contacts in the process of architectural design. Design/methodology/approach: The best solution to the problem would be to develop and design application and implement it on Android devices. Findings: Different types of business models will be compared with their effectiveness and popularity. In addition, the advantages and disadvantages of different strategies will be reviewed. Research limitations/implications: The work focuses on presenting the concept of an application that facilitates establishing contacts between representatives of architecture industries. Practical implications: This is an important issue for future users as it allows for product improvement. Originality/value: The application can be a preliminary step to developing a conflict management strategy.
PL
W artykule przedstawiono rozwiązania z zakresu ITS w miejskim transporcie zbiorowym wprowadzone w latach 2018-2019 w Stalowej Woli. Omówiony został system informacji pasażerskiej, system biletu elektronicznego oraz system nadzoru ruchu. Opisano rozwiązania funkcjonujące przed wprowadzeniem nowoczesnych systemów informatycznych, zakładane cele po wdrożeniu nowych rozwiązań oraz skutki ich wprowadzenia. Omówione zostały korzyści osiągnięte po wprowadzeniu nowoczesnych technologii, które mają wpływ na jakość obsługi pasażerów oraz zarządzanie taborem autobusowym. W artykule wskazano na problemy, które pojawiają się w trakcie eksploatacji systemów informatycznych oraz urządzeń, z których systemy są zbudowane.
EN
The article presents ITS solutions in urban public transport introduced in 2018-2019 in Stalowa Wola. The passenger information system, electronic ticketing system and traffic surveillance system were discussed. The solutions in operation before the introduction of modern ITS systems, the assumed goals after the implementation of the new solutions and the effects of their introduction were described. The benefits achieved after the introduction of modern technologies that affect the quality of passenger service and bus fleet management are reviewed. The article points out problems that arise during the operation of IT systems and the devices from which the systems are constructed.
EN
The sustainability of engineering education depends on a strategic vision in university education. The strategic vision of education at technical universities is orientated to knowledge, digitization, online education, innovative methods in education, all forms of Management and business education platform. The main goal of this article is the creation of the model of engineering education at the technical university based on synergy effect of the economic subjects of study, digitalization, all forms of management, and innovative didactic methods with direction to future education. In this research we realized project "Student firms" by using digitalization, e-learning approach in education and connecting all form of management as in business environment. Results of the implemented "Student Firms" project at the university recorded benefits in improving students' key competencies, soft skills, social competencies, financial, economic competencies, and their impact on the level of evaluation of subjects of study. The output of the research was the design of a model of engineering education at the university. This model can be a tool for making changes in education at university for his sustainability in the future.
EN
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.
EN
Background: In today's context, information technology is increasingly taking a great interest for academics and practitioners. IT plays a critical role in supply chain readiness to meet market changes by lowering costs and enhancing quality. Hence, the objective of this article is to explore the effect of information technology integration (ITI) and supply chain information management (SCIM) on supply chain integration (SCI) and its association with supply chain performance (SCP) and firm performance in the automotive supply chain. Methods: The research data were collected from 177 middle and top-level managers of automotive firms installed in Morocco. The structural equation modelling under the partial least squares approach was used in testing the hypotheses and proposed model. Results: The study findings show that ITI and SCIM positively and significantly affect the level of SCI. In addition, SCI positively and significantly affects SCP and firm performance. Furthermore, SCP plays a direct and positive role in improving firm performance. Conclusions: The study results provide direction on how automotive SC managers might enhance automotive SCP and firm performance.
EN
In the face of current global threats, including the COVID-19 Pandemic, new technological solutions are needed. Globalization, progressing urbanization, the decreasing availability of cultivable land for food production, water contamination, flood risk and climate change, can all be viewed as potential threats to food safety. According to forecasts and trends, the future of both agricultural policy and agricultural innovation will be based on big data, data analytics and machine learning. Therefore, it is and will continue to be important to develop information systems dedicated to agricultural innovation and the management of food security challenges. The main aim of the study is a classification of data for a uniform AMIS from data from IREIS, GC and AIIS based on survey and expert interview data obtained. We propose to expand the range of data produced by small farmers while keeping in mind the protection of farmers and their rights and the possible benefits of the data provided. The literature recognizes the value of such data but it has not yet been legally regulated, protected, managed and, above all, properly used for agricultural and food security policy purposes. Therefore, we develop the idea of extended farmers’ participation in the production of agricultural activity data. The research used a survey questionnaire and expert interviews. A viable AIIS needs current data that farmers already produce as well as additional data needs which we identify in our research. We propose an architecture of databases and describe their flow in the Agriculture Management Information System (AMIS).
EN
Purpose: The aim of this study is to develop an architecture of enterprise solutions that allow real-time (or simulated) extraction, storage and analysis of parameterized data from high- resolution sensors to more accurately predict the potential course of technological processes in the industry and solving of related logistics tasks. Design/methodology/approach: The development of an integration architecture based on appropriate Web tools for viewing and collaborating on corporate information of the oil and gas industry will allow full operational decision-making on this basis, guided by the values of relevant controlled parameters and imposed on them and the process as a whole relevant constraints in general are the methodological grounds of the research from the theoretical and subject domain scope. The functionality of the artificial intelligence system should be reduced to sending signals to the controller in order to modify the controlled parameters through the appropriate instructions. At the theoretical level, measurement, interpretation and control will take place either on the surface, or on the bore, or in both places at the same time. Findings: There were explored software outlines for making possible the creation of the desired findings for new and better business processes and technological innovations in the domestic gas and oil industries based on intelligent information solutions. As proposed in this study, optimal flexibility and forward performance will only be achieved through the use of the cloud as a platform for tomorrow's technological challenges in the oil and gas industry. Originality/value: The newly developed focus on novel class of increasing domestic business efficiency will generally encourage oil and gas companies to develop their information architecture in the direction of knowledge-based systems and solutions, especially when controlling the drilling of oil and gas wells in terms of incomplete, inaccurate and poorly structured information from sensors.
EN
Information technologies are now a vital element of social life. Their task is to introduce people to a better tomorrow, catch up with the most developed countries, broaden horizons, and increase the standard of living. However, the rapid development of technology, access to data, and the possibility of managing it are still dependent on the human being, who determines whose data, when, and for what purpose it will be obtained and utilized. Nonetheless, indeed, all the data once found on the Internet remains there forever. Huge data banks are built based on personal data and account profiling. Besides, these banks are strongly guarded and secured with the most modern alarm systems, and only a small group of trained IT specialists has access to them. By information provided on own preferences, purchases made, applications downloaded, shared information, photos, and likes on social networks, one can specify the sexual preferences, education, political and religious views, evaluate assets, or determine the marital status of the user. Even small amounts of information shared reveal the deeply hidden interests of online account users, and the benefits of information technology are designed to share personal information while forgetting about the risks automatically.
PL
Technologie informatyczne stanowią obecnie bardzo istotny element życia społecznego. Mają one za zadanie wprowadzać ludzi w lepsze jutro, dorównywać krajom najbardziej rozwiniętym, poszerzać horyzonty i zwiększać standard życia. Szybki rozwój technologii, dostęp do danych i możliwość zarządzania nimi są jednak ciągle zależne od człowieka, to od niego zależy czyje dane, kiedy i w jakim celu będą pozyskane i wykorzystane. Pewne jest jednak, że wszystkie dane, które raz trafią do Internetu pozostają tam na zawsze. Ogromne banki danych są tworzone na podstawie danych osobowych oraz na podstawie profilowania kont. Dodatkowo banki te są silnie strzeżone i zabezpieczone najnowocześniejszymi systemami alarmowymi, a dostęp do nich ma jedynie mała grupa przeszkolonych informatyków. Poprzez określenie własnych preferencji, dokonywanych zakupów, pobieranych aplikacji, udostępnianych informacji, zdjęć, polubień na portalach społecznościowych można określić, preferencje seksualne, wykształcenie, poglądy polityczne i religijne, wycenić majątek użytkownika, czy też określić stan cywilny. Nawet małe ilości udostępnianych informacji ukazują głęboko ukryte zainteresowania użytkowników kont internetowych, a korzyści oferowane przez technologie informatyczne mają na celu automatyczne udostępnianie danych osobowych przy równoczesnym zapominaniu o zagrożeniach.
EN
This chapter addresses a business continuity management (BCM) framework for the Industry 4.0 companies including the organizational and technical solutions, regarding the dependability and security of the information and telecommunication technology (ICT), and the industrial control system (ICS)/supervisory control and data acquisition (SCADA) system. These technologies and systems play nowadays important roles in modern advanced manufacturing systems and process plants due to their openness to external systems and networks using various communication channels. It gives on the one hand, some advantages in effective realization of technological and business processes, logistics and distribution of goods, but, on the other hand, makes the company assets and resources potentially vulnerable to some threats with relevant risks. The chapter outlines some ideas related to designing a business continuity management system (BCMS) based on defined processes and procedures. Such system includes planning of changes in organization/industrial company, nonconformity issues, and planning corrective actions. In a final part of this chapter the leadership importance, and staff awareness and responsibility are emphasized to create a robust and healthy corporate culture based on accepted values, properly spread among the employees. It is beneficial for shaping good organizational culture, and then safety and security culture. The BCM approach outlined in this chapter distinguishes both preventive and recovery activities regarding suggestions in selected international standards and domain publications.
PL
Złożoność, wieloetapowość oraz niejednorodność przedsięwzięć inżynieryjnych wiąże się z trudnościami w doborze narzędzi informatycznych, umożliwiających ich racjonalne wspomaganie. Brak zgodności informacyjnej i funkcjonalnej poszczególnych aplikacji, wykorzystywanych do wspomagania kolejnych etapów złożonego przedsięwzięcia sprawia, że spójna realizacja takiego procesu jest albo znacznie utrudniona, albo wręcz niemożliwa. Istotna zatem wydaje się próba dokonania oceny możliwości wykorzystania do tego celu zintegrowanych aplikacji o charakterze hybrydowym. Wykorzystywane są one z powodzeniem do wspomagania złożonych, niejednorodnych przedsięwzięć o charakterze biznesowym, a ich specyfika i znaczny zakres potencjalnych zastosowań umożliwia ich wykorzystanie również w zakresie problemów inżynieryjnych, oferując przy tym spójność informacyjną i funkcjonalną całego przedsięwzięcia.
EN
Engineering tasks, such as the ones presented in the article related to civil engineering, examined in the informational and decision-making context, are frequently complex, multi-stage and heterogeneous in nature. This leads to difficulties when selecting IT tools that enable their support. No informational or functional conformity of particular applications used to support the subsequent stages of a complex task makes the coherent realisation of such a process considerably harder or even impossible. Support of numerous homogenous engineering tasks is provided with the use of technologies that have been adopted from other management areas, mainly dedicated to business operations. This is what one should also do with complex and heterogeneous engineering problems. It seems rational that integrated applications that allow one to both solve algorithmic problems and heuristic ones should be employed. Integrated hybrid systems ensure continuity of support for complex, multi-stage engineering problems, at the same time offering informational and functional coherence of the whole task.
EN
The article deals with the expediency of using multimedia technologies in the training of future specialists in environmental engineering and construction, including at the initial stage in the study of the subject "Introduction to the specialty". It is emphasized that these technologies open unprecedented prospects in solving important tasks and lead to the transition from the traditional scheme of transfer of reproductive knowledge to a new, creative form of learning. It is established that multimedia technologies in the classes of future specialists in environmental engineering and construction contribute to: the formation of professional skills through the use of Internet materials of different levels of complexity; improving listening skills with the help of authentic sound texts, film episodes; development of dialogue skills, improvement of professional correspondence skills, enrichment of professional vocabulary (both active and passive), which reflects a certain stage in the development of culture, various technical equipment, social and political structure of society; enrichment of students with cultural knowledge, including professional etiquette, features of traditions; improving knowledge through online exercises and tests. It is proved that the use of multimedia presentations in the training of future specialists in environmental engineering and construction, provides the function of transmitting information, as well as receiving feedback in the process of its perception and assimilation, as information presented in visual form is most accessible to perception. It is noted that the use of multimedia technologies in the training of future professionals contributes to the intensification and enrichment of the educational process, evokes a conscious perception of educational material, motivates and activates student learning, individualizes the process of studying specialties, diversifies classes, and promotes mental and creative skills. construction and civil security, increases interest in training and the level of professional skills.
EN
Purpose: The purpose of the article is to assess the level of use of information technologies by households in selected European countries and the resulting transformations in socio-economic relations. Design/methodology/approach: The article uses one of the taxonomic methods – the Hellwig’s development pattern method. 20 diagnostic features were adopted to develop Hellwig’s synthetic measure. They reflect the access and use of the Internet by households in five areas: networking and formal activities in the fields of e-government, e-banking, e-education, e-health; carrying out political and civic activities online (consulting, voting, expressing opinions); making informal contacts and participating in social networks (e.g. Facebook, Twitter, etc.); e-commerce; using instant messaging and e-mail. Findings: In the light of the characteristics adopted for the survey, the highest level of use of information technology by households is characteristic of Iceland, Norway, Denmark, Sweden, the Netherlands, Great Britain and Finland. The countries with the lowest rates are Romania and Bulgaria. Research limitations/implications: The studies presented may contribute to further in-depth analyses of the links between the use of information technologies in individual countries and their level of economic development in the long term. Originality/value: The results are addressed to public authorities in 30 European countries. On their basis, leaders in the use of information technologies by households in various areas of economic and social life were identified. The distance between the other countries was also diagnosed. The results of the research can guide public authorities in developing strategies for the development and dissemination of information technologies in their countries.
EN
This paper is dedicated to an overview of components of an onboard control system of an autonomous ship. This system controls and operates the ship. Therefore, this system needs to be able to analyze the ship’s state, predict its future development and analyze the consequences of its own decisions. The paper focuses on software aspects of the onboard control system, not the hardware. The paper provides an overview of technologies that can be used to implement the components of such a system responsible for planning new routes, handling the ship during the voyage, ensuring its seaworthiness and safety during the voyage, monitoring an autonomous ship from an onshore control centre, ensuring the robustness of the onboard control system, and collective operations of multiple autonomous ships. The paper describes benefits the maritime industry would gain from deploying some of the technologies developed for autonomous ships on ordinary, human-controlled ships. The paper also describes some challenges, especially in the field of automatic decision and reasoning, arising from the emergence of autonomous and smart ships. The main contribution of the paper is that it summarizes existing research in different areas of autonomous ship technology.
EN
The paper discusses examples of the application of new technological solutions in the field of automation, IT, and electronics in multimodal transport. In the 21st century, electric vehicles and electronic systems that accelerate the delivery process are becoming increasingly important. The purpose of the article is to show examples of the application of electronics and power electronics in road, rail, and sea transport. The functioning of selected devices and systems used in specific modes of transport is also described.
EN
The article considers information technology for the realization of human communication using residual human capabilities, obtained by organizing text entry using mobile and auxiliary devices. The components of the proposed technology are described in detail: the method for entering text information to realize the possibility of introducing a limited number of controls and the method of predicting words that are most often encountered after words already entered in the sentence. A generalized representation of the process of entering text is described with the aid of an ambiguous virtual keyboard and the representation of control signals for the selection of control elements. The approaches to finding the optimal distribution of the set of alphabet characters for different numbers of control signals are given. The method of word prediction is generalized and improved, the statistical language model with "back-off" is used, and the approach to the formation of the training corpus of the spoken Ukrainian language is proposed.
PL
W artykule przedstawiono realizację wybranego fragmentu programu kształcenia na kierunkach inżynierii środowiska obejmującego zakres inżynierii elektrycznej, automatyki i informatyki. Uwzględniono nową klasyfikację dyscyplin oraz różne koncepcje kształcenia w zakresie przedmiotów kierunkowych i niekierunkowych. Wskazano na niezbędne treści z zakresu elektrotechniki, elektroniki oraz automatyki i informatyki, które powinny się znaleźć w nowoczesnym kształceniu akademickim. Wskazano również na znaczenia specjalizowanych materiałów dydaktycznych ukierunkowanych dla studentów kierunku inżynieria środowiska. Zaprezentowane konkluzje oparto na ponad 20-letnim doświadczeniu z realizacji kształcenia w Politechnice Poznańskiej o profilu ogólno akademickim oraz w PWSZ w Gnieźnie o profilu praktycznym.
EN
In this paper, the implementation of a selected part of the education program in the fields of environmental engineering covering the scope of electrical engineering, automation and information technology, is presented. A new classification of scientific disciplines and various educational concepts in the field of directional and non-directional subjects were taken into account. It was indicated which contents in the field of electrical engineering, electronics, automation and information technology should be included in modern academic education. The importance of specialized didactic support materials dedicated for environmental engineering students was also indicated. The presented conclusions are based on over 20 years of experience in the implementation of general academic education at the Poznan University of Technology and a practical profile of studies at the Hipolit Cegielski State University of Applied Sciences in Gniezno.
first rewind previous Strona / 16 next fast forward last
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.