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    Tytuł:
    Information-administrative architectures conception and principles of their modeling
    Koncepcija informacionno-upravlencheskikh arkhitektur i principy ikh modelirovanija
    Autorzy:
    Danich, V.
    Dyomin, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/792526.pdf
    Data publikacji:
    2012
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    information model
    benchmarking
    monitoring
    information-administrative architecture
    modeling environment
    information management
    Opis:
    The articles are devoted to informationadministrative architecture and its monitoring conceptions. Approaches, methods and abstractions, allowing to carry out the IAA modeling and being the conceptual level of model with dynamic types definition is described. This allows designing and developing database for informationadministrative architecture monitoring.
    Статья посвящена концепциям информационно-управленческих архитектрур и их мониторинга. Описаны подходы, методы и абстракции, позволяющие осуществлять моделирование архитектуры, являющиеся концептуальным уровнем модели с динамическим определением типов, что позволяет проектировать и реализовывать базы данных для мониторинга информационно-управленческих архитектур.
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 4
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical modelling of oil spill in New York Bay
    Autorzy:
    Toz, A. C.
    Koseoglu, B.
    Sakar, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/205140.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    New York Bay
    ADIOS
    automated data inquiry for oil spills
    GNOME
    general NOAA operational modeling environment
    numerical modelling
    oil spill
    Opis:
    New York Bay is one of the most important transition regions of ships trading to east America. The region plays an important role in the commerce of the New York metropolitan area. The area is surrounded with the coasts that have various levels of environmental sensitivity. The area accommodates high diversity of native ecosystems and species that are rather vulnerable in case of oil spill. Thus getting well informed about the likelihood, or fate, of oil spills around this region is of great importance so that proactive measures can be taken. The purpose of this study is to investigate the oil spill and predict the future accidents likely to be encountered around the Bay of New York. Two trajectory models have been conducted for the study. ADIOS (Automated Data Inquiry for Oil Spills), has been conducted for natural degradation calculations, and, GNOME (General NOAA Operational Modeling Environment), has been conducted for surface spread simulation. The results gained through these efforts are hoped to be useful for many organizations dealing with oil spill response operations and contribute to an effective and efficient coordination among the relevant institutions.
    Źródło:
    Archives of Environmental Protection; 2016, 42, 4; 22-31
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ocena wpływu odwadniania przyszłej odkrywki "Piaski" KWB "Konin" SA na środowisko wodne
    Impact assessment of the future "Piaski" open pit dewatering on the water environment
    Autorzy:
    Stachowicz, Z.
    Szczepiński, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/350768.pdf
    Data publikacji:
    2007
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    odwodnienie
    środowisko
    modelowanie przepływu
    dewatering
    environment
    flow modeling
    Opis:
    Rozpoczęcie zdejmowania nadkładu w odkrywce "Piaski" planowane jest w 2010 roku, a w rok później przewiduje się wydobycie pierwszego węgla. Zdolność wydobywcza zakładu górniczego wyniesie około 3,5 mln ton węgla rocznie. Według obecnych założeń eksploatacja węgla w odkrywce zakończy się w 2036 roku. Rozpoznana i udokumentowana budowa geologiczna, warunki hydrogeologiczne oraz przyjęta technologia eksploatacji złoża wskazują na zastosowanie studziennego systemu odwadniania jako podstawowego. Uwzględniając warunki udostępniania złoża, w obszarze potencjalnego wpływu odwadniania wydzielono trzy poziomy wodonośne: nadkładowy, podwęglowy i kredowy. W celu określenia oddziaływania odwadniania na środowisko wodne wykorzystany został program obliczeniowy MODFLOW. Na dwuwarstwowym modelu numerycznym obejmującym obszar ok. 1550 km2 przedstawiono krążenie wód podziemnych w rejonie projektowanej odkrywki w warunkach naturalnych oraz w warunkach pracy systemu odwadniania kopalni. Wyniki obliczeń wskazują, że odwadnianie kopalni wywoła lej depresyjny o zasięgu od 3 do 6 km. Zasilanie wód podziemnych dopływających do systemu odwadniania pochodzić będzie w przeważającej części z infiltracji efektywnej oraz częściowo z rzeki Czarnej Strugi. Odwodnienie odkrywki spowodować może zmniejszenie dopływu podziemnego do rzeki Warty o około 1,9 m3/min.
    Overburden stripping in the "Piaski" open-pit is planned in 2010 and the lignite production will start one year later. Production capacity will be 3.5 Mg/year. According to the present conception lignite production will finish in 2036. Identified and documented geology structure, hydrogeological conditions and technology of operation, enable to apply as a fundamental water wells dewatering system. Taking into account hydrogeological conditions, three hydrostratigraphic units were distinguished in the area of potential impact of dewatering: overburden aquifer, lignite underlying aquifer and cretaceous aquifer. To simulate dewatering impact on water environment the USGS program MODFLOW has been used. Based on the two-layered numerical model with area of 1550 km2, groundwater circulation was simulated in the natural conditions as well as in the conditions changed due to mine dewatering operations. The results indicate that because of mine dewatering the range of the cone of depression will amount to 3-5 km. Groundwater recharge originate mainly from the infiltration of precipitation and additionally from Czarna Struga river. Open pit dewatering may results in decrease of baseflow to Warta river by about 1.9 m3/min.
    Źródło:
    Górnictwo i Geoinżynieria; 2007, 31, 2; 567-574
    1732-6702
    Pojawia się w:
    Górnictwo i Geoinżynieria
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The impact of the size of the training set on the predictive abilities of neural models on the example of the Day-Ahead Market System of TGE S.A.
    Autorzy:
    Ruciński, Dariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2175162.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
    Tematy:
    Day Ahead Market
    MATLAB environment
    Simulink environment
    neural modeling
    prediction time
    electricity prices
    Opis:
    The main object of the research was to examine the acceptable time horizon that could be predicted by previously learned models of the Day-Ahead Market (DAM) TGE S.A. system. The article contains the results of research on the predicting ability of different ANN models of the DAM TGE S.A. The research was conducted based on data covering the operation of the Polish stock exchange in the period from 2002 to 2019 (the first half of the year). The research was carried out based on the learned ANN models of the DAM system. Data were taken for examination covering the time from 2002 to 2019 (1st half of the year) and was divided into a different period, i.e., a month, a quarter, and a half-year., year, etc. The MSE, MAE, MAPE, and R2 were adopted as the criteria for assessing the ability of individual models to predict electricity prices. The research was carried out by successively expanding forecasting periods in a rolling manner. For example, for a half-year, prediction time intervals were increased from one week to month, two months, quarter, half-year, etc. results for a model representing a given period. A lot of interesting research results were obtained.
    Źródło:
    Studia Informatica : systems and information technology; 2022, 1(26); 5--22
    1731-2264
    Pojawia się w:
    Studia Informatica : systems and information technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Inclusiveness as a key determinant of work engagement: evidence from V4 countries
    Autorzy:
    Borisov, Igor
    Vinogradov, Szergej
    Powiązania:
    https://bibliotekanauki.pl/articles/22443128.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Badań Gospodarczych
    Tematy:
    empowerment
    workplace autonomy
    organizational learning environment
    structural equation modeling
    Opis:
    Research background: There is currently a need for empirical research regarding the validity of specific work environment model elements supported by strong statistical evidence. The amount of research conducted in this field has been particularly limited in Central-Eastern Europe. The desire to fill in these gaps was at least in part responsible for the uniqueness of the research approach and its differences from previous similar studies. Purpose of the article: The purpose of this study was to examine factors affecting employee engagement and to examine their relationship with each other using Visegrad countries as an example. Methods: The initial data is taken from the fourth European Company Survey (2019) for management respondents. After data cleaning, the sample sizes for Czechia, Hungary Poland, and Slovakia are N(CZ)=904, N(HU)=682, N(PL)=511, and N(SK)=361, respectively. As a result of the exploratory factor analysis (EFA), the following five dimensions were identified for this research: (1) inclusiveness, (2) empowerment, (3) work autonomy, (4) organizational learning environment, and (5) work engagement. An analysis of structural equation modeling (SEM) was conducted to determine the links that exist among these dimensions of a constructive work environment. Findings & value added: The structural model indicates that inclusiveness and empowerment have a significant positive impact on work engagement in all the countries examined. Inclusiveness was the strongest predictor of work engagement, followed by empowerment. Both of the two other predictors in the model (workplace autonomy and organizational learning environment) generally had less or no effect on employee engagement. The present study extends recent literature on work engagement by empirically validating the influence of workplace environment-related factors, as well as providing useful organizational policy recommendations for managers.
    Źródło:
    Equilibrium. Quarterly Journal of Economics and Economic Policy; 2022, 17, 4; 1015-1050
    1689-765X
    2353-3293
    Pojawia się w:
    Equilibrium. Quarterly Journal of Economics and Economic Policy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Indicator of Environmental Problems of Agricultural Sectors Under the Environmental Modeling
    Autorzy:
    Sutthichaimethee, P.
    Sawangdee, Y.
    Powiązania:
    https://bibliotekanauki.pl/articles/123997.pdf
    Data publikacji:
    2016
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    agricultural sector
    revenue
    environment cost
    forward linkage
    multiplier
    modeling
    sustainable
    Opis:
    The objective of this research is to propose an indicator to deal with environmental problems for agricultural sectors caused by goods and services production. The aspects to calculate the real benefit of agricultural sectors and environmental cost for analyzing are natural resources materials, energy and transportation, fertilizer and pesticides, and sanitary and similar service. From the research it was found that the highest environmental cost of natural resources materials was 026: charcoal and fire-wood, while the lowest was 010 coconut. The highest environmental cost for energy and transportation was 024: agricultural services, while the highest environmental cost for fertilizer and pesticides was 011: palm oil. lastly, 017: other agricultural products was found as the highest environmental cost for sanitary and similar service. As a result, 010: coconut gained the highest real benefit, while 024: agricultural services presented as the lowest read benefit for the company. If Thailand using environmental problem indicator, especially with the agricultural sector, it can help to formulate efficient policies and strategies for the country in 3 development areas, which are social, economic, and environmental development.
    Źródło:
    Journal of Ecological Engineering; 2016, 17, 2; 12-18
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Identification modeling of Polish electric power exchange
    Autorzy:
    Marlęga, R.
    Tchórzewski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/94879.pdf
    Data publikacji:
    2016
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    parametrical model
    identification modeling
    simulation research
    susceptibility testing
    MATLAB
    Simulink environment
    Opis:
    This paper contains selected results of identification modeling of Polish Electric Power Exchange (EPE). In order to obtain EPE system model it was performed identification based on figures of EPEís Day-Ahead Market. During performing identification process, parametric arx model in System Identification Toolbox environment was utilized. Generated EPE parametric model has been further used for performing simulation tests and realization of susceptibility testing. Suitable models were implemented in Simulink software. As a result of simulation and susceptibility testing, many interesting findings has been delivered.
    Źródło:
    Information Systems in Management; 2016, 5, 2; 195-204
    2084-5537
    2544-1728
    Pojawia się w:
    Information Systems in Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    State-space model and implementation Polish Power Exchange in Matlab and Simulnk environments
    Autorzy:
    Marlęga, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/94817.pdf
    Data publikacji:
    2017
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    simulation research
    parametric model
    identification modeling
    Matlab environment
    Simulink environment
    Business Intelligence
    BI
    state space
    Opis:
    This work contains selected results of research on modelling identification of Polish Power Exchange (TGEE) on the example of the figures quoted on the Day Ahead Market (DAM) on TGEE in Poland. In order to obtain a model of the TGEE system on the beginning it was conducted to identify the figures for the period 01.01.2013-31.12.2015 obtaining discrete parametric model arx in MATLAB and Simulink environments using System Identification Toolbox (SIT). The resultant model was converted to a continuous parametric model, and that one on a continuous model in the state space. On the basis of obtained equations of state and outputs, there was interpreted a state variables and parameters of the selected model, i.e. selected elements of the matrix A and matrix B. Research continues.
    Źródło:
    Information Systems in Management; 2017, 6, 4; 294-308
    2084-5537
    2544-1728
    Pojawia się w:
    Information Systems in Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mathematical model for determination of exhaust concentration dynamics in urban atmosphere under unknown turbulent air flow velocity
    Autorzy:
    Guseynov, S.
    Kopytov, E.
    Grishin, S.
    Schiptsov, O.
    Rimshans, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/312623.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Naukowo-Wydawniczy "SPATIUM"
    Tematy:
    transport miejski
    ekologia miasta
    zanieczyszczenie środowiska
    przepływ turbulentny
    urban transport
    air pollution
    urban ecology
    urban planning
    environment mathematical modeling
    city turbulent atmosphere
    turbulent flow
    Opis:
    The paper proposes the 3-D nonlinear mathematical model for analytic determination of exhaust concentration dynamics in the city regions under the important stipulation that an airflow velocity is not a priory known. To determine an unknown airflow velocity the nonlinear mathematical model is proposed and this nonlinear model is solved by analytical method. In this model it is provided that the turbulent and molecular diffusion coefficient changes depending on the vertical remoteness above the ground surface. The proposed model can be used for solutions of operative problems on urban traffic organization, of long-term planning of urban agglomeration development and new highway building.
    Źródło:
    Autobusy : technika, eksploatacja, systemy transportowe; 2010, 11, 6
    1509-5878
    2450-7725
    Pojawia się w:
    Autobusy : technika, eksploatacja, systemy transportowe
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Neural model of human gait and its implementation in MATLAB and Simulink Environment using Deep Learning Toolbox
    Autorzy:
    Tchórzewski, Jerzy
    Wielgo, Arkadiusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2052427.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
    Tematy:
    artificial neural network
    deep learning toolbox
    humanoid robots
    MATLAB environment
    Simulink environment
    modeling of human walking motion
    Opis:
    The article presents selected results of research on the modeling of humanoid robots, including the results of neural modeling of human gait and its implementation in the environment MATLAB and Simulink with the use of Deep Learning Toolbox. The subject of the research was placed within the scope of the available literature on the subject. Then, appropriate research experiments on human movement along a given trajectory were developed. First, the method of measuring the parameters present in the experiment was established, i.e. input quantities (displacement of the left heel, displacement of the right heel) and output quantities (displacement of the measurement point of the human body in space). Then, research experiments were carried out, as a result of which numerical data were measured in order to use them for teaching and testing the Artificial Neural Network. The Perceptron Artificial Neural Network architecture was used to build a model of a neural human walk along a given trajectory. The obtained results were discussed and interpreted, drawing a number of important conclusions.
    Źródło:
    Studia Informatica : systems and information technology; 2021, 1-2(25); 39-65
    1731-2264
    Pojawia się w:
    Studia Informatica : systems and information technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of a web application supporting gym management in terms of control and systems theory
    Autorzy:
    Tchórzewski, Jerzy
    Nabiałek, Wojciech
    Księżopolski, Artur
    Powiązania:
    https://bibliotekanauki.pl/articles/27323576.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
    Tematy:
    gym management
    identity theory
    MATLAB
    Simulink environment
    modeling
    simulations
    web systems
    Opis:
    An analysis of the web application supporting the management of the gym was carried out, which was designed in terms of the theory of control and systems. The obtained results of measurements of input and output quantities of selected subsystems were used to carry out the identification, as a result of which models of web application subsystems were obtained. On the basis of the obtained subsystem models, appropriate models were then designed in Simulink for the purposes of simulation and comparative studies of the behavior of subsystem models in relation to real systems that are web applications, including an appropriate analysis of the web application system model was carried out under the name of the gym on its selected subsystems, including in particular the subsystem called Generating a diet. In addition, testing and simulation studies were carried out to check the correct functioning of the web application management system model and the introduction of appropriate changes to the model was proposed, and the obtained research results were discussed, indicating the high accuracy of the obtained web application models.
    Źródło:
    Studia Informatica : systems and information technology; 2023, 1(28); 47--68
    1731-2264
    Pojawia się w:
    Studia Informatica : systems and information technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Model systemu informatycznego w oparciu o język UML jako jeden z elementów optymalizacji systemu zarządzania środowiskowego spełniającego wymagania normy PN-EN ISO 14001:2015-09 w kontekście działalności biznesowej organizacji
    A model of a computerized information system based on the UML language as one of the elements of the environmental management system optimization fulfilling the requirements of the PN-EN ISO14001:2015-09 standard, in the context of the businessperformance
    Autorzy:
    Chomczyk, Michał Adam
    Chomczyk, Zbigniew
    Powiązania:
    https://bibliotekanauki.pl/articles/1819449.pdf
    Data publikacji:
    2019-05-12
    Wydawca:
    Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
    Tematy:
    management system environment
    UML modeling language
    system zarządzania środowiskowego
    język modelowania UML
    Opis:
    Niniejsza publikacja przedstawia wymagania nowej normy PN-EN ISO 14001:2015-09 –„Systemy zarządzania środowiskowego – Wymagania i wytyczne stosowania” w kontekście możliwegowykorzystania przy jej wdrożeniu elementów zunifikowanego języka modelowania UML. Główny elementpublikacji obejmuje zatem przedstawienie szczegółowych wymagań normy środowiskowej ze wskazaniemmożliwości ich zaimplementowania do procesu wspomagania komputerowego systemuzarządzania środowiskowego.
    This publication is presenting a new standard PN-EN ISO 14001:2015-09 – “Environmental management systems – requirements and guidelines of applying”, in the context of the possible usage of the UML modelling language while implementing the standard. The main part of the publication includes presentation of detailed requirements of the environmental norm with indications of their capabilities for the process of computer helping (aiding) system of the environmental management.
    Źródło:
    Zeszyty Naukowe Uniwersytetu Przyrodniczo-Humanistycznego w Siedlcach; 2017, 40, 113; 21-34
    2082-5501
    Pojawia się w:
    Zeszyty Naukowe Uniwersytetu Przyrodniczo-Humanistycznego w Siedlcach
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Behavior of helical piles - as a geoenvironmental choice - by frustum confining vessel (FCV)
    Autorzy:
    Khazaie, J.
    Eslami, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/102327.pdf
    Data publikacji:
    2016
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    helical pile
    environment
    geoenvironment
    frustum confining vessel (FCV)
    physical modeling
    bearing capacity
    Opis:
    Helical piles are environmental friendly and economical deep foundations that due to environmental considerations are excellent additions to the variety of deep foundation alternatives available to the practitioner. Helical piles performance depends on soil properties, the pile geometry and soil-pile interaction. Helical piles can be a proper alternative in sensitive environmental sites if their bearing capacity is sufficient to support applied loads. The failure capacity of helical piles in this study was measured via an experimental research program that carried out by Frustum Confining Vessel (FCV). FCV is a frustum chamber by approximately linear increase in vertical and lateral stresses along depth from top to bottom. Due to special geometry and applied bottom pressure, this apparatus is a proper choice to test small model piles which can simulate field stress conditions. Small scale helical piles are made with either single helix or more helixes and installed in fine grained sand with three various densities. Axial loading tests including compression and tension tests were performed to achieve pile ultimate capacity. Results indicate the helical piles behavior essentially depends on pile geometric characteristics, i.e. helix configuration and soil properties. According to the achievements, axial uplift capacity of helical model piles is about equal to usual steel model piles that have the helixes diameter. Helical pile compression bearing capacity is too sufficient to act as a medium pile, thus it can be substituted other piles in special geoenvironmental conditions. The bearing capacity also depends on spacing ratio, S/D, and helixes diameter.
    Źródło:
    Advances in Science and Technology. Research Journal; 2016, 10, 31; 8-22
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Феномен соціальних мереж: парадокс залежності та варіативність моделювання
    The phenomenon of social networks: the paradox of dependence and variability modelling
    Autorzy:
    Hrybiuk, Olena
    Powiązania:
    https://bibliotekanauki.pl/articles/469894.pdf
    Data publikacji:
    2017-03-01
    Wydawca:
    Wyższa Szkoła Gospodarki Euroregionalnej im. Alcide De Gasperi w Józefowie
    Tematy:
    modeling
    variable models
    computer-oriented learning environment
    mathematics
    network
    engineering
    social network
    Opis:
    Purpose. Іn the publication, a comparative analysis of scientifically-methodical bases of modeling of the learning environment, including using social networking was shown. Variable models are represented on the basis of competence-based approach taking into account the main stages of the design. Methods. Theoretical (the analysis of philosophical, psychological, sociological, pedagogical and methodological publications on the subject of the study); the empirical (observation, survey, pedagogical experiment); methods of statistical data processing. Results. To improve efficiency, including using social networking, it is recommended to consider the advantages of decentralized and centralized networks, improving the sustainability of horizontal communication, transparency, access to resources, monitoring of "reliability ratings", limiting the number of network members, the formation and development of "competence networks". Network stability is maintained even in case of instability of its membership and transaction volume. Based on the comparative analysis of the models considered in the present research, the principles of formation and coordination of the organizational structure in the virtual space. Differences due to the specifics regarding the use of modern information and cognitive technology, the inner logic of action and the specific culture of communication in the network. On the basis of similarities taking into account the analysed models, the prospect for further research is seen in the context of further ways to improve the efficiency of agents in the virtual space, including social networks.
    Źródło:
    Intercultural Communication; 2017, 2, 1; 123-142
    2451-0998
    Pojawia się w:
    Intercultural Communication
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigations of mechanical properties of API P110 steel casing tubes operated in deep-sea sour condensate well conditions
    Autorzy:
    Yao, Zilin
    Wang, Yu
    Yang, Xuefeng
    Gao, Anping
    Zhang, Rong
    Jia, Yanjie
    Powiązania:
    https://bibliotekanauki.pl/articles/1585020.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    deep-sea drilling environment
    mechanical properties
    yield strength
    tensile strength
    corrosion modeling
    Opis:
    Due to the complexity of the marine environment, in deep-sea drilling, all kinds of strings are corroded by different deepsea conditions for a long time, accompanied by high temperature and high pressure, which lead to the continuous change of mechanical properties of materials. In order to solve the problem that the material mechanical parameters cannot be accurately described in the performance analysis of the casing, deep-sea simulated corrosion and material damage experiments of P110 material were carried out in this paper. Mass loss and tensile experiments on corrosion-damaged test pieces were conducted under different corrosion experimental periods. The changes in mechanical properties of the material were analyzed. Equations of the variation of the equivalent yield strength and the equivalent tensile strength were obtained. The results show that the equivalent yield strength and the equivalent tensile strength decrease with the increase of the weight loss rate. Based on the experimental results and finite element analysis, a method for establishing the material corrosion model was proposed in this paper. The deep-sea drilling corrosion performance model of P110 material was established, which greatly reduced the error caused by the material uniformity assumption in finite element analysis. This paper provides a theoretical basis for the analysis of reliability and life of P110 materials in wells.
    Źródło:
    Polish Maritime Research; 2020, 3; 121-129
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Agent system in control of ship movement
    Autorzy:
    Łebkowski, A.
    Dziedzicki, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069705.pdf
    Data publikacji:
    2008
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    decision support system
    e-navigation
    ship passing
    route planning
    navigation environment
    modeling
    Opis:
    The problem of determining the optimal passing route of the ship between its current position and a remote destination point including the navigation situation occurring during moving along the route has been a subject of many papers and so far has not been definitely solved. In order to determine an optimal and safe route of the ship and its control along it, the author suggests application of an agent system. In the presented agent system three goals are accomplished. The first relies on data acquisition about current navigation situation around the ship and on analysis of possible collision risk. Second target – so far not present in anti-collision systems – relies on automatic negotiations between ships that operate in the same water region or between the coast stations in order to determine the potential area thru which a passing route could have been set. The third one connected to determining the passing route and its autocorrecting depending on current navigation situation.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2008, 2; 235--239
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Carrying Capacity Model of Food Manufacturing Sectors for Sustainable Development From Using Environmental and Natural Resources of Thailand
    Autorzy:
    Sutthichaimethee, P.
    Tanoamchard, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/123855.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    food manufacturing
    environment cost
    indicator
    carrying capacity
    revenue
    sanitary and similar services
    modeling
    Opis:
    The objective of this research is to propose an indicator to assess and rank environmental problems caused by production within the food manufacturing sector of Thailand. The factors used to calculate the real benefit included the costs of natural resources, energy and transportation, fertilizer and pesticides, and sanitary and similar service. The highest environmental cost in terms of both natural resources materials and energy and transportation was ice, while the highest environmental cost for fertilizer and pesticides was coconut and palm oil. Confectionery had the highest environmental cost for sanitary and similar services. Overall, real estate gained the highest real benefit, while repair not classified elsewhere had the lowest real benefit for the company. If Thailand uses an indicator of environmental harm, especially within the food manufacturing sector, it could help to formulate efficient policies and strategies for the country in three areas of development, which are social, economic, and environmental development.
    Źródło:
    Journal of Ecological Engineering; 2015, 16, 5; 1-8
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Моделювання потреб внутрішніх ринків для забезпечення електроенергією в умовах нестабільного зовнішнього соціально-економічного та політичного середовища в Україні
    Modeling the needs of domestic markets for the provision of electricity in the conditions of an unstable external socio-economic and political environment in Ukraine
    Modelowanie potrzeb krajowych rynków zaopatrzenia w energię elektryczną, w warunkach niestabilnego zewnętrznego otoczenia społeczno-gospodarczego i politycznego Ukrainy
    Autorzy:
    Kostin, Yuri
    Shvedsky, Volodymyr
    Powiązania:
    https://bibliotekanauki.pl/articles/38410428.pdf
    Data publikacji:
    2022
    Wydawca:
    Wyższa Szkoła Techniczna w Katowicach
    Tematy:
    energy industry
    strategy
    unstable external environment
    modeling
    energetyka
    strategia
    niestabilne otoczenie zewnętrzne
    modelowanie
    Opis:
    The article considers the problems of the energy industry in Ukraine, the causes and consequences of crisis phenomena, due to the influence of an unstable external socio-economic and political environment and imperfect decisions regarding reform and prospects for the development of the industry. Special attention was paid to the analysis of electricity, as one of the most important components of the energy industry in Ukraine. The models and forecasts developed in this work are based on the study of time series data for the main indicators of the electric power industry and can be applied in the development of individual elements of the new Energy Strategy of Ukraine in the conditions of an unstable external socio-economic and political environment in Ukraine.
    Artykuł analizuje problemy energetyki na Ukrainie, przyczyny i skutki zjawisk kryzysowych, wywołanych wpływem niestabilnego zewnętrznego otoczenia społeczno-gospodarczego i politycznego oraz niedoskonałych decyzji, dotyczących reformy i perspektyw rozwoju branży. Szczególną uwagę zwrócono na analizę energii elektrycznej, jako jednego z najważniejszych źródeł energetyki na Ukrainie. Modele i prognozy opracowane w tej pracy opierają się na badaniu danych szeregów czasowych dla głównych wskaźników elektroenergetyki i mogą być zastosowane w opracowaniu poszczególnych elementów nowej Strategii Energetycznej Ukrainy, w warunkach niestabilnej sytuacji zewnętrznej środowiska społeczno-gospodarczego i politycznego na Ukrainie.
    Źródło:
    Zeszyty Naukowe Wyższej Szkoły Technicznej w Katowicach; 2022, 15; 143-162
    2082-7016
    2450-5552
    Pojawia się w:
    Zeszyty Naukowe Wyższej Szkoły Technicznej w Katowicach
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microscopic simulation of pedestrian traffic in urban environment under epidemic conditions
    Autorzy:
    Paciorek, Mateusz
    Poklewski-Koziełł, Damian
    Racoń-Leja, Kinga
    Byrski, Aleksander
    Gyurkovich, Mateusz
    Turek, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/2086861.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    epidemic modeling
    pedestrian dynamic simulation
    urban environment
    modelowanie epidemii
    symulacja dynamiki pieszych
    środowisko miejskie
    Opis:
    The ongoing period of the pandemic makes everybody focused on the matters related to fighting this immense problem posed to the societies worldwide. The governments deal with the threat by publishing regulations which should allow to mitigate the pandemic, walking on thin ice as the decision makers do not always know how to properly respond to the threat in order to save people. Computer-based simulations of e.g. parts of the city or rural area should provide significant help, however, there are some requirements to fulfill. The simulation should be verifiable, supported by the urban research and it should be possible to run it in appropriate scale. Thus in this paper we present an interdisciplinary work of urban researchers and computer scientists, proposing a scalable, HPC-grade model of simulation, which was tested in a real scenario and may be further used to extend our knowledge about epidemic spread and the results of its counteracting methods. The paper shows the relevant state of the art, discusses the micro-scale simulation model, sketches out the elements of its implementation and provides tangible results gathered for a part of the city of Krakow, Poland.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 4; e137725, 1--15
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelowanie rozmyte w analizie jakościowej z wykorzystaniem środowiska OLAP
    Fuzzy modeling for quality analysis in OLAP environment
    Autorzy:
    Chojnacki, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/91407.pdf
    Data publikacji:
    2011
    Wydawca:
    Warszawska Wyższa Szkoła Informatyki
    Tematy:
    modelowanie rozmyte
    analiza jakościowa
    środowisko OLAP
    On-Line Analitycal Processing
    fuzzy modeling
    quality analysis
    OLAP environment
    Opis:
    W referacie przedstawiono matematyczny deterministyczny model struktury danych w środowisku OLAP w postaci wielowymiarowej i wielopoziomowej kostki. Model został uogólniony na przypadek danych o charakterze rozmytym lub interpretowanych z wykorzystaniem teorii zbiorów rozmytych i logiki rozmytej. Wskazano na możliwości wykonywania analiz jakościowych baz i hurtowni danych w oparciu o przedstawione modele.
    The article presents mathematical deterministic model of data structure applied in OLAP environments as multidimensional and multilevel cube. This model is generalized to the fuzzy data or data interpreted with fuzzy sets theory and fuzzy logic. Possibilities of quality analysis of data bases and data warehouses using presented models are described.
    Źródło:
    Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki; 2011, 5, 5; 79-85
    1896-396X
    2082-8349
    Pojawia się w:
    Zeszyty Naukowe Warszawskiej Wyższej Szkoły Informatyki
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Systemic Evolutionary Algorithm inspired by the methods of quantum computing to improve the accuracy of the model on the neuronal motion the end of the robot arm PR–02
    Autorzy:
    Wołynka, Ł.
    Tchórzewski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/97323.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    Evolution algorithms
    Quantum computing
    Modeling systems
    Robot PR–02
    Artificial Neural Networks
    Environment MATLAB and Simulink
    Opis:
    The article contains selected results of research on the design Systemic Evolutionary Algorithm inspired by quantum informatics methods and description how to implement it in Matlab language in order to use for improve parameters neural model on example robot robot PR–02 arm motion. Initial population was based on weights matrix of artificial neural network. Randomly selected population of individual chromosomes in both the initial and in the following parent population have been converted to binary values, and these to quantum values by using created for this purpose quatization() function. Quantum gene value was determined on the basis of stonger pure state represented by different chromosomes, to which dequantization() function was used. Selection of individuals was conducted based on the model of neural robot PR–02 motion implemented in Matlab language using calculationsNeuralNetworks() function.
    Źródło:
    Computer Applications in Electrical Engineering; 2016, 14; 297-312
    1508-4248
    Pojawia się w:
    Computer Applications in Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-objective analysis of Polish domestic power system development from point of view of unmanned factories. A cybernetic issue
    Autorzy:
    Tchórzewski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/950676.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    development model
    identification process
    MATLAB and Simulink environment
    multi-parameters analyze
    power system modeling
    unmanned factory
    Opis:
    The paper contains selected results of research on the Domestic Power System (DPS) as an unmanned factory. Models of the DPS system of the MISO type, obtained as a result of identification for 14 inputs and 4 outputs were presented. Particular attention was given to the identification and the assessment of the DPS development based on the systems and control theory. The obtained models of the DPS development were analyzed and discussed. The studies were obtained model of the development of the DPS, and on the basis of is knowledge of the structural and parametrical changes of system development. The model can be used to analyze the design and development of the system from the point of view of the growth of internal organization system and the transition to higher levels of control.
    Źródło:
    Archives of Electrical Engineering; 2016, 65, 3; 541-558
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Prediction capabilities of the LSTM and Perceptron models based on the Day-Ahead Market on the Polish Power Exchange S.A.
    Autorzy:
    Ruciński, Dariusz
    Powiązania:
    https://bibliotekanauki.pl/articles/27323577.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
    Tematy:
    shallow networks
    deep networks
    Day-Ahead Market
    MATLAB
    Simulink environment
    neural modeling
    prediction time
    electricity prices
    Opis:
    The main purpose of the research was to examine the properties of models for two kinds of neural networks, a deep learning models in which the Long Short-Term Memory was chosen and shallow neural model in which the Perceptron Neural Network was chosen. The subject of the examination was the Day-Ahead Market system of PPE S.A. The article presents the learning results of both networks and the results of the predictive abilities of the models. The research was conducted based on data published on the Polish Stock Exchange for the 2018 year. The MATLAB environment was chosen as a tool for providing the examinations. The determination index (R2) and the mean square error (MSE) was adopted as the network evaluation criterion for the learning ability and for the prediction ability of both networks.
    Źródło:
    Studia Informatica : systems and information technology; 2023, 1(28); 69--82
    1731-2264
    Pojawia się w:
    Studia Informatica : systems and information technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of variational data assimilation algorithms in the ecological monitoring system
    Wykorzystanie algorytmów wiariancyjnej asymilacji danych w systemie monitoringu ekologicznego
    Autorzy:
    Rakhmetullina, S.
    Turganbayev, Y.
    Gromaszek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/408171.pdf
    Data publikacji:
    2012
    Wydawca:
    Politechnika Lubelska. Wydawnictwo Politechniki Lubelskiej
    Tematy:
    modelowanie procesów atmosferycznych
    ochrona środowiska
    oddziaływanie antropogenne
    modeling of atmospheric processes
    environment protection
    anthropogenic impact
    Opis:
    The article deals with a question of application of variation algorithms in the system of ecological monitoring for the detection of sources of pollution with unknown location.
    Artykuł poświęcony jest zadaniu wykorzystania algorytmu wariacyjnej asymilacji danych w systemie monitoringu ekologicznego do wyznaczenia funkcji stanu oceny intensywności znanego źródła oraz detekcji źródeł zakłóceń o nieznanych lokalizacjach.
    Źródło:
    Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska; 2012, 4a; 33-35
    2083-0157
    2391-6761
    Pojawia się w:
    Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hydrochemical Indicators Dynamic in Surface Water
    Autorzy:
    Mitryasova, Olena
    Cieśla, Maksymilian
    Nosyk, Anastasia
    Mats, Andrii
    Powiązania:
    https://bibliotekanauki.pl/articles/1955476.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    surface water quality
    water security
    hydrochemical indicators
    regression analysis
    mathematical modeling
    forecast of the environment state
    Inhul river
    Opis:
    On the basis of the analysis of wide temporal monitoring data, a forecast of the integrated hydrochemical indicators of the waters of the Inhul river (Ukraine) was carried out. The performed analysis was also the basis for the determination of a mathematical model of natural fluctuations of the indicators studied. The determined sinusoidal dependence of the integrated water quality indicators allowed determining the average time of fluctuations concerning the processes of self-organisation of river waters. In practice, the developed mathematical models may constitute a valuable support and supplement to the existing models in the field of prediction of self-organization processes of river waters. They may also contribute to even more effective minimization of undesirable effects of anthropogenic impact on aquatic ecosystems.
    Źródło:
    Journal of Ecological Engineering; 2021, 22, 8; 111-122
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modelowanie i symulacja pracy generatora wiatrowego z magazynem energii w środowisku MATLAB & SIMULINK
    Modeling and Simulation of Working a Wind Generator with Energy Storage in MATLAB & SIMULINK Environment
    Autorzy:
    Jarmuda, Tomasz
    Yurasyk, Mykhailo
    Powiązania:
    https://bibliotekanauki.pl/articles/34655819.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    turbina wiatrowa
    modelowanie elektrowni wiatrowej
    środowisko MATLAB & SIMULINK magazynowanie energii
    wind turbine
    wind farm modeling
    MATLAB & SIMULINK environment
    energy storage
    Opis:
    Publikacja ma charakter naukowo-techniczny i poświęcona jest modelowaniu oraz symulacji pracy generatora wiatrowego w postaci rzeczywistej turbiny wiatrowej o mocy 1,6 kW firmy Travere Industries z systemem magazynowania energii w środowisku MATLAB & SIMULINK. W pracy przedstawiono algorytm implementacji modelu z doborem elementów, które można warunkowo podzielić na dwa podsystemy. Pierwszy podsystem to model, który symuluje turbina wiatrowa za pomocą układu turbina-generator. Zastosowano w nim dwa bloki, z których jeden pełni rolę generatora PMSG, który na wyjściu generuje trójfazowy prąd przemienny (prąd stały dla obciążenia uwzględniono poprzez konwerter mostkowy). Drugi podsystem realizuje magazynowanie energii poprzez dwukierunkową przetwornicę DC/DC, która umożliwia oddzielenie akumulatora od szyny obciążenia. Model turbiny wiatrowej zaimplementowano w środowisku SIMULINK. W artykule przedstawiono oscylogramy z wynikami, uzyskanymi na podstawie symulacji dla różnych wartości prędkości wiatru. Przeprowadzono dokładną analizę otrzymanych wyników badań. Artykuł kończą podsumowanie i wnioski.
    The publication is of a scientific and technical nature and is devoted to modeling and simulating the operation of a wind generator in the form of a real wind turbine 1.6 kW from Travere Industries with an energy storage system in the MATLAB & SIMULINK environment. The paper presents the model implementation algorithm with the selection of elements that can be conditionally divided into two subsystems. The first subsystem is a model that simulates a wind turbine with a turbine-generator system. It uses two blocks, one of which acts as a PMSG generator that generates three-phase alternating current at the output (direct current for the load is accounted for through a bridge converter). The second subsystem performs energy storage via a bi-directional DC / DC converter, which allows the battery to be separated from the load bus. The wind turbine model was implemented in the SIMULINK environment. The article presents oscillograms with the results obtained on the basis of simulations for various values of wind speed. A thorough analysis of the obtained test results was carried out. The article ends with a summary and conclusions.
    Źródło:
    Poznan University of Technology Academic Journals. Electrical Engineering; 2022, 107; 55-68
    1897-0737
    Pojawia się w:
    Poznan University of Technology Academic Journals. Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of the impact of disruptions in ground handling on aircraft fuel consumption
    Autorzy:
    Gładyś, Sylwester
    Kwasiborska, Anna
    Postół, Jakub
    Powiązania:
    https://bibliotekanauki.pl/articles/2203890.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    Simio
    modeling of services
    impact on the environment
    disturbances in ground handling
    modelowanie usług
    wpływ na środowisko
    zakłócenia w obsłudze naziemnej
    Opis:
    The authors of the paper distinguished two basic problems that occur during the ground handling of aircraft. The first one concerns the identification of disruptions during ground handling that have an impact on the scheduled completion of ground handling. The second problem is determining how these disturbances affect the environment by estimating the increased fuel consumption of the aircraft. In the first step, a catalog of disruptions in the ground handling process of the aircraft, which delays the performance of subsequent aircraft operations, was developed. Simio software was used to analyze the impact of disturbances on the performance of ground service, in which random disturbances were simulated. The simulation was run for several variants, taking into account the sample aircraft and various airlines. The developed model allows for the analysis of the impact of disturbances on the punctual performance of the ground service of the aircraft for various variants with given probability values. In the next step, simulations were performed to determine the impact of the disturbances on the increase in fuel consumption by the aircraft. Research has shown that even minor disruptions increase an aircraft’s fuel consumption over a 200-km flight path. The analyzes carried out in this work are of great importance for sales agents and airlines who strive to minimize the duration of elementary activities and eliminate threats during ground handling. Additionally, it is important from the point of view of environmental protection. As research has shown, even small disturbances can substantially increase fuel consumption, which is not beneficial for airlines. Past research has focused on the analysis of fuel consumption by aircraft and emissions during takeoff and landing operations and taxiing aircraft. There is a large correlation between the disturbances occurring at the parking place and increased fuel consumption, which is important from an economic and environmental point of view.
    Źródło:
    Transport Problems; 2022, 17, 2; 115--126
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Quantum-inspired artificil neural networks and evolutionary algorithms methods applied to modeling of the polish electric power exchange using the day-ahead market data
    Autorzy:
    Tchórzewski, J.
    Ruciński, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/94957.pdf
    Data publikacji:
    2018
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
    Tematy:
    artificial intelligence methods
    MATLAB and Simulink environment
    modeling of business intelligence process
    quantum inspired method
    smart electric power system
    electric power exchange system
    Opis:
    The paper presents selected results of research on the use of artificial intelligence methods, which are inspired by quantum computing solutions for modelling of electric power exchange systems. Methods used in the modelling of quantum data acquisition, quantization and dequantization of information as well as the methods of performing quantum computations were emphasized. Furthermore, we have analysed the results obtained for the neural model and for the evolutionary algorithm inspired by the quantum computer science. Eventually, the model was verified on the example of the neural model of the Electric Power Exchange (EPE).
    Źródło:
    Information Systems in Management; 2018, 7, 3; 201-212
    2084-5537
    2544-1728
    Pojawia się w:
    Information Systems in Management
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Respiratory system model based on PSPICE
    Autorzy:
    Masana, F. N.
    Powiązania:
    https://bibliotekanauki.pl/articles/398140.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
    Tematy:
    respiratory system model
    analog behavioral modeling
    nonlinear model
    open simulation environment
    PSPICE
    FVC maneuver
    tidal breathing
    model układu oddechowego
    ABM
    modelowanie behawioralne
    model nieliniowy
    środowisko symulacji
    manewr FVC
    oddychanie spokojne
    Opis:
    The aim of the present work is the building of a lumped nonlinear dynamic model of lung/airway mechanics using generic instead of specific software, in an attempt to offer an open simulation environment. Based on the analogy between pneumatic and electric magnitudes, an electrical equivalent circuit of the lung/airway mechanics is derived. Then, the nonlinear circuit elements are constructed by means of the powerful Analog Behavioral Modeling (ABM) building blocks and the system is solved using PSPICE. Following the approach in [3] and [4], five lumps are defined: two capacitors (elastances) corresponding to lung and collapsible airway segment and three resistors, corresponding to lung, collapsible airway segment and upper airway. The element definition involves as much as five parameters for the lung, four parameters for the collapsible segment and two parameters for the upper airway. The model does not attempt to mimic any particular system adjusting a given set of parameters but instead to provide a tool to explore the relationship between a given parameter or set of parameters and the system response. In particular, Forced Vital Capacity (FVC) maneuver and tidal breathing will be explored.
    Źródło:
    International Journal of Microelectronics and Computer Science; 2015, 6, 3; 102-109
    2080-8755
    2353-9607
    Pojawia się w:
    International Journal of Microelectronics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problems of expert evaluation in terms of the use of variative models of a computer-oriented learning environment of mathematical and natural science disciplines in schools
    Problemy ewaluacji eksperckiej w zakresie wykorzystania w szkołach wariatywnych modeli komputerowego zorientowanego środowiska uczenia się matematyki oraz przedmiotów ścisłych i przyrodniczych
    Autorzy:
    Hrybiuk, Olena
    Powiązania:
    https://bibliotekanauki.pl/articles/203101.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
    Tematy:
    mathematics
    modeling
    variation models
    computer-oriented learning environment
    natural science
    mathematics education
    pedagogy of variations
    engineering
    evaluation
    intellectual development
    multifunctionality
    matematyka
    modelowanie
    wariatywne modele
    inżynieria
    edukacja matematyczna
    komputerowo zorientowany system kształcenia
    nauki przyrodnicze
    pedagogika
    rozwój intelektualny
    ewaluacja
    wielofunkcyjność
    Opis:
    The article discusses the concept of mathematical education of pupils of a school and the results of pedagogical research. Being trained to solve the simplest tasks without a deep (thorough) understanding of the meaning of mathematical relationships is not conducive to the development of intellectual abilities and is quickly lost after completing the topic. It is experimentally confirmed that a student aspiring to attain a higher technical education, in addition to computational skills, needs to have an idea about mathematics and its methods, possess logical development, a graphic culture, develop a spatial imagination, independent work skills, the ability, if necessary, to use the appropriate directory to restore specific facts and obtain the necessary information. The research also looks into ways of solving problems with designing the learning environment and elaborating variable models of studying the natural and mathematical sciences with application of certain components of a computer-oriented learning system with the aim of upgrading pupils’ performance (a mass model, the main model and the creative model – an advanced level). The structuring of knowledge and the correct correlation of the selected types of knowledge develop the content of profile education, taking into account significant differentiation and the possibility of building an individual educational curriculum for schoolchildren, and also contributes to the filling of the three most important components of the content of profile training: basic invariant, profile variational and additional ones.
    Omówiono koncepcję edukacji matematycznej uczniów szkoły oraz wyniki pedagogicznych badań naukowych. Wyćwiczenie w rozwiązywaniu najprostszych zadań bez głębszego (świadomego) rozumienia sensu zasad matematycznych nie sprzyja rozwojowi zdolności intelektualnych i jest szybko zapominane po zakończeniu przerobionego tematu. Uczeń zamierzający uzyskać wyższe wykształcenie techniczne oprócz nawyków obliczeniowych powinien zdobyć wiedzę o matematyce i jej metodach, osiągnąć rozwój logiczny, kulturę graficzną, rozwiniętą wyobraźnię przestrzenną, nawyki samodzielnej pracy, umiejętność pozwalającą, w koniecznym przypadku, skorzystać z odpowiedniego źródła w celu ustalenia konkretnych faktów i otrzymać niezbędne informacje. Strategia realizacji nauczania profilowanego przewiduje oddzielenie poziomu ogólnokształcącego od poziomu profilowanego. W badaniu zostały również omówione sposoby rozwiązania zadań projektowania środowiska uczenia się i tworzenia modeli z zastosowaniem poszczególnych składników komputerowo-zorientowanego systemu kształcenia w celu poprawy wyników uczniów. Przeprowadzona strukturyzacja wiedzy i prawidłowe zestawienie wydzielonych typów wiadomości pozwalają na opracowanie treści nauczania profilowego, zakładającego znaczne zróżnicowanie i możliwość ułożenia dla uczniów indywidualnego programu nauczania (model masowy, model podstawowy i model twórczy – wyższy). W badaniu biorą udział metodycy w celu przeprowadzenia eksperymentów w szkolnej praktyce dla określenia zdolności intelektualnych, rezultaty są również analizowane na podstawie badań eksperymentalnych.
    Źródło:
    Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie; 2019, 79; 101-118
    0239-9415
    Pojawia się w:
    Zeszyty Naukowe Politechniki Poznańskiej. Organizacja i Zarządzanie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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