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Tytuł:
A Comprehensive Overview of the Impacting Factors on a Lithium-Ion-Battery’s Overall Efficiency
Autorzy:
Kremzow-Tennie, Simeon
Scholz, Tobias
Pautzke, Friedbert
Popp, Alexander
Fechtner, Heiko
Schmuelling, Benedikt
Powiązania:
https://bibliotekanauki.pl/articles/2175925.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
battery simulation
battery efficiency
component analysis
simulation technology
battery analysis
Opis:
This comprehensive overview of the impacting factors on lithium-ion-battery’s (LIB) overall efficiency presents the most relevant influencing factors on a battery’s performance. Dissected into their respective short-term and long-term influences, the working principles behind the efficiency influencing factors are presented. With a strong focus on battery characterisation, charge-profiles and battery management systems (BMSs), the authors present results of their own practical research with a detailed literary analysis, allowing a broad coverage of the complex topic. Finally, the authors present a principle model that indicates the interactions be-tween the different involved components of the battery.
Źródło:
Power Electronics and Drives; 2022, 7, 42; 9--28
2451-0262
2543-4292
Pojawia się w:
Power Electronics and Drives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Novel GPU-Enabled Simulator for Large Scale Spiking Neural Networks
Autorzy:
Szynkiewicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/307680.pdf
Data publikacji:
2016
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
GPU computing
OpenCL programming technology
parallel simulation
spiking neural networks
Opis:
The understanding of the structural and dynamic complexity of neural networks is greatly facilitated by computer simulations. An ongoing challenge for simulating realistic models is, however, computational speed. In this paper a framework for modeling and parallel simulation of biological-inspired large scale spiking neural networks on high-performance graphics processors is described. This tool is implemented in the OpenCL programming technology. It enables simulation study with three models: Integrate-andfire, Hodgkin-Huxley and Izhikevich neuron model. The results of extensive simulations are provided to illustrate the operation and performance of the presented software framework. The particular attention is focused on the computational speed-up factor.
Źródło:
Journal of Telecommunications and Information Technology; 2016, 2; 34-42
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza symulacyjna przepływu ciekłego metalu przez innowacyjną komorę reakcyjną w technologii wytwarzania żeliwa sferoidalnego i jej optymalizacja
Simulation analysis of liquid metal flow through an innovative reaction chamber (and its shape optimization) used in ductile iron production technology
Autorzy:
Małysza, Marcin
Stefański, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/391642.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Odlewnictwa
Tematy:
żeliwo sferoidalne
modyfikacja i sferoidyzacja żeliwa w formie
symulacja komputerowa przepływu metalu
computer simulation
modification and spheroidization in the form
ductile iron
casting technology
Opis:
Odlewy z żeliwa sferoidalnego znajdują szerokie zastosowanie w wielu gałęziach przemysłu ze względu na swoje właściwości mechaniczne. Wytwarzanie tego gatunku materiału wymaga utrzymania reżimu technologicznego oraz czystości materiału wyjściowego. Z tego powodu stale rozwijane są metody wytwarzania oraz kontroli tego materiału. W niniejszej publikacji przedstawiona została nowa metoda sferoidyzacji i modyfikacji żeliwa w formie. Innowacją tej metody jest zastosowanie specjalnie opracowanej konstrukcji komory, w której zachodzi reakcja uszlachetniania żeliwa. W artykule przedstawione zostały przeprowadzone badania symulacyjne, mające na celu analizę profilu przepływającego ciekłego metalu w zadanej konstrukcji. Następnie wprowadzone zostały zmiany geometrii komory, celem optymalizacji jej kształtu oraz powtórnie wykonano analizę w tożsamych warunkach brzegowych. Wynikiem badań jest opracowanie konstrukcji, która zapewni odpowiedni charakter przepływu pozwalający na uzyskanie dobrej jakości żeliwa i odlewów z żeliwa sferoidalnego w formie odlewniczej.
Ductile iron castings are widely used in many industrial branches because of their mechanical properties. The production process of such a grade of cast iron requires the maintenance of the technological regime and the purity of initial charge material. For this reason, methods of manufacturing and controlling materials are constantly being developed. This publication presents a new method of modification and spheroidization in the mould. The innovation of this method is the use of specially developed construction of the reaction chamber. Simulation studies were conducted to analyze the flow profile of liquid metal in the developed shapes of the chamber. Subsequently, the changes in the geometry of the chamber were made and analyzed under the same boundary conditions. The result of the study is the designation of a structure that will provide the appropriate flow characteristics to achieve good quality castings.
Źródło:
Prace Instytutu Odlewnictwa; 2019, 59, 1; 37-51
1899-2439
Pojawia się w:
Prace Instytutu Odlewnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of a microcontroller in simulation of the photovoltaic generators
Zastosowanie mikrokontrolera do symulacji generatorow fotowoltaicznych
Autorzy:
Kapica, J.
Powiązania:
https://bibliotekanauki.pl/articles/792476.pdf
Data publikacji:
2011
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
solar energy
photovoltaic generator
simulation
MOSFET technology
microcontroller
mathematical model
current-voltage curve
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2011, 11
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applications of Simulation Technology - Pitfalls and Challenges
Autorzy:
Malik, A.
Zafar, N.
Powiązania:
https://bibliotekanauki.pl/articles/116011.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Marine Simulator
Simulation Technology
Simulator Based Training (SBT)
Maritime Education and Training (MET)
simulator
Simulator Instructor
Simulator Training
Simulator Experience
Opis:
Simulator based training has its own unique features and problems associated with it. There is a need to discuss these issues in order to understand the real meaning of simulator based training and to handle it effectively. Like other fields of training, use of simulation in the maritime industry is owing to the multiple factors covering technological, financial and training needs of the time. When properly used, supported by well trained and experienced instructors, simulator training, through its risk free environment, can contribute to a reduction in accidents and improve capability and efficiency, by providing trainees with the necessary experience and self confidence to carry out their roles, functions and tasks.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2015, 9, 3; 391-396
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cast agricultural tools for operation in soil
Odlewane narzedzia rolnicze pracujace w glebie
Autorzy:
Pirowski, Z.
Kranc, M.
Olszynski, J.
Gwizdz, A.
Goscianski, M.
Powiązania:
https://bibliotekanauki.pl/articles/793045.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
iron alloy
ductile iron
agricultural tool
plough
single-sided plough
performance test
operating condition
cultivator duckfoot
tribological wear
subsoiler coulter
computer simulation
casting technology
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 2
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in the perception of telematics technology by road transport companies: an empirical analysis in 2020-21
Autorzy:
Zalewski, Wojciech
Osińska, Magdalena
Żurek, Mirosława
Powiązania:
https://bibliotekanauki.pl/articles/27314069.pdf
Data publikacji:
2023
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
Technology Acceptance Model
TAM
telematics
longitudinal data
simulation
road transport
decision-making in enterprise
model akceptacji technologii
telematyka
dane longitudinalne
symulacja
transport drogowy
podejmowanie decyzji w przedsiębiorstwie
Opis:
We present a novel study concerning the attitudes of road transport enterprises towards a broad application of telematics in operational management in road transportation. The study aims to assess telematics application in road transport and its changes over time while showing the factors most likely to determine the systems’ use. Unobserved categories defined in the technology acceptance model (TAM) are adjusted to measure perceived usefulness, perceived ease of use, and attitudes toward using telematics systems by road transport managers. The study is based on 323 transport enterprises analyzed in two waves in 2020 and 2021. The use of two different time points is motivated by an observed increase in the digitalization of transport documents caused by the COVID-19 pandemic. The empirical findings support the TAM’s usefulness in evaluating IT in transport business management. The findings also reveal that the significantly increased telematics use in 2020 was observed while it was endured. The results are checked for robustness and used for simulations. The study compares managers’ behaviors over time and simulates the effect of individual (observed) variables on unobserved TAM categories.
Źródło:
Transport Problems; 2023, 18, 1; 5--17
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer simulation of AP projectile penetration into RHA
Autorzy:
Wisniewski, A.
Tomaszewski, L.
Powiązania:
https://bibliotekanauki.pl/articles/237982.pdf
Data publikacji:
2009
Wydawca:
Instytut Technologii Bezpieczeństwa Moratex
Tematy:
symulacja komputerowa
penetracja pocisku
techniki uzbrojenia
computer simulation
bullet penetration
military technology
Opis:
The process of penetration of B-32 type 12.7 mm armour piercing bullet into one-layered and two-layered of 20 mm thickness RHA armour, is presented. Analysis was carried out with AUTODYN 5 programme and with the use of the SPH method. Projectile and armour strains occurring in the subsequent time period for seven variants with different material parameters of projectile and dimensions of armour, are shown. The influence of different material parameters of the projectile on its capability of armour penetration is presented here. It was proved that two times higher yield stress of projectile material causes almost three-fold improvement of depth of penetration and the bulging of the armour. In its initial phase of the projectile penetration into armour (0÷0.04 ms) the kinetic energy of the projectile rises together with the decrease of yield stress of its material. Computer simulation showed that capability of protection of one-layered RHA armour is higher than in case of two-layered RHA armour.
Źródło:
Techniczne Wyroby Włókiennicze; 2009, R. 17, nr 2/3, 2/3; 32-39
1230-7491
Pojawia się w:
Techniczne Wyroby Włókiennicze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development and validation of an operational fast time ship manoeuvring solver to increase navigation efficiency in horizontally restricted waterways
Autorzy:
Kazerooni, M. F.
Rahimian, M.
Tree, M.
Womersley, T.
Jensen, B.
Powiązania:
https://bibliotekanauki.pl/articles/24201447.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
manoeuvring
measurement
hydrodynamics
autopilot
fast-time manoeuvring simulation technology
harbour navigation
shallow water
harbour approach channels design
Opis:
Growth of demand for containerized cargo shipping has put more ports into pressure to accommodate larger vessels. Considering the limitations on dimensions of navigation channels, this is not feasible unless aiming for significant capital dredging or alternatively creating high precision predictions of vessel motions subjected to environmental forcing and interaction with shallow and restricted waterway. NCOS ONLINE (Nonlinear Channel Optimisation Simulator) is a state of the art navigation support tool which combines DHI’s high level forecast of environmental conditions with mathematical model of ship motions to add an extra level of accuracy in predicting the under-keel clearance and vessel swept path to boost the efficiency of navigation and pilotage within restricted channels. NCOS Manoeuvring Module utilizes an autopilot scheme based on PID (Proportional / Integral / Derivative) controller and Line of Sight Algorithm to FORCE Technology’s SimFlex4 manoeuvring solver for prediction of manoeuvring ship swept path and response, which will effectively bring the accuracy of real time full bridge simulator to fast time operation support tool. In this paper, the result of mathematical model is validated against fullscale measurements of containership transits through Port of Auckland Navigation channel by comparing pilot commands, leeway drift and swept path through output of portable pilotage unit. According to the results the model is found promising to predict the behaviour of human pilots with precision required in operational use. Finally, the swept path and manoeuvring performance of a sample transit is assessed on different environmental conditions and tide stages to evaluate the safe transit windows in operation.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 1; 71--76
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Examples of new models applied in selected simulation systems with respect to database
Autorzy:
Ignaszak, Z.
Hajkowski, J.
Popielarski, P.
Powiązania:
https://bibliotekanauki.pl/articles/379975.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
information technology
foundry industry
porosity prediction
structure prediction
database
thermophysical parameters
simulation codes
AlSi alloy
technologia informacyjna
przemysł odlewniczy
przewidywanie struktury
baza danych
parametr termofizyczny
stop Al-Si
Opis:
The tolerance of damage rule progressively meets the approval in the design casting parts procedures. Therefore, there were appeared the new challenges and expectations for permanent development of process virtualization in the mechanical engineering industry. Virtualization is increasingly developed on the stage of product design and materials technologies optimization. Increasing expectations of design and process engineers regarding the practical effectiveness of applied simulation systems with new proposed up-grades modules is observed. The purpose is to obtain simulation tools allowing the most possible realistic prognosis of the casting structure, including indication, with the highest possible probability, places in the casting that are endangered with the possibility of shrinkage– and gas porosity formation. This 3D map of discontinuities and structure transformed in local mechanical characteristics are used to calculate the local stresses and safety factors. The needs of tolerance of damage and new approach to evaluate the quality of such prognosis must be defined. These problems of validation of new models/modules used to predict the shrinkage– and gas porosity including the chosen structure parameters in the example of AlSi7 alloy are discussed in the paper.
Źródło:
Archives of Foundry Engineering; 2013, 13, 1; 45-50
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gating systems for sizeable castings from Al alloys cast into ceramic moulds
Autorzy:
Stachovec, I.
Horáček, M.
Zemčík, L.
Kolda, V.
Horenský, J.
Powiązania:
https://bibliotekanauki.pl/articles/382771.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
technologia informatyczna
przemysł odlewniczy
krzepnięcie
układ wlewowy
forma ceramiczna
symulacja
information technology
foundry industry
solidification
gating systems
ceramic mould
simulation
Opis:
In contrast to casting to conventional non-reusable 'sand' moulds, for which calculating technique for an optimum design of the gating system is comparatively well-developed, a trial-and-error method is applied mostly for casting to ceramic shell moulds made by the investment casting technology. A technologist selects from gating systems of several types (that are standardized by the foundry mostly) on the basis of experience. However, this approach is not sustainable with ever growing demands on quality of castings and also the economy of their fabrication as well as with new types of complex sizeable castings introduced to the production gradually (by new customers from the aircraft industry above all) any more. The simulation software may be used as a possible tool for making the process of optimising gating systems more effective.
Źródło:
Archives of Foundry Engineering; 2012, 12, 2; 65-68
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving Quality and Occupational Safety on Automated Casting Lines
Autorzy:
Kukla, S.
Powiązania:
https://bibliotekanauki.pl/articles/380123.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry industry
quality management
automation in foundry
application of information technology
modelling of production systems
simulation of production systems
work ergonomics
przemysł odlewniczy
zarządzanie jakością
automatyzacja w odlewni
zastosowanie technologii informatycznych
modelowanie systemów produkcyjnych
symulacja systemów produkcyjnych
ergonomia pracy
Opis:
The paper presents a practical example of improving quality and occupational safety on automated casting lines. Working conditions on the line of box moulding with horizontal mould split were analysed due to low degree of automation at the stage of cores or filters installation as well as spheroidizing mortar dosing. A simulation analysis was carried out, which was related to the grounds of introducing an automatic mortar dispenser to the mould. To carry out the research, a simulation model of a line in universal Arena software for modelling and simulation of manufacturing systems by Rockwell Software Inc. was created. A simulation experiment was carried out on a model in order to determine basic parameters of the working system. Organization and working conditions in other sections of the line were also analysed, paying particular attention to quality, ergonomics and occupational safety. Ergonomics analysis was carried out on manual cores installation workplace and filters installation workplace, and changes to these workplaces were suggested in order to eliminate actions being unnecessary and onerous for employees.
Źródło:
Archives of Foundry Engineering; 2017, 17, 3; 69-72
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving the Organization of Iron Casts Finishing Processes
Autorzy:
Kukla, S.
Powiązania:
https://bibliotekanauki.pl/articles/380666.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
information technology
foundry industry
automation in foundry
robotics in foundry
multicriteria variants analysis
modelling of production systems
simulation of production systems
work ergonomics
technologia informatyczna
przemysł odlewniczy
automatyka w odlewnictwie
robotyka w odlewnictwie
modelowanie systemów produkcji
symulacja systemów produkcyjnych
ergonomia pracy
Opis:
The paper presents issues of production processes improvement in foundries in terms of finishing treatment of iron casts on grinding workstations. Basing on the conducted analysis of work ergonomics on the grinding line and the observation of work at workstations, a range of improvements related to organizing grinding treatment processes was proposed. In order to visualize the production system functioning and estimate its efficiency, a simulation model of a grinding line has been created, on which a simulation experiment was carried out. Due to many factors influencing the effectiveness of processes, it was suggested to use multi-criteria evaluation tools to choose the most rational solution. Three criteria have been assumed, according to which particular improvement variants were evaluated. Also, criteria weights have been set according to the Saaty’s method, and particular solution variants have been assessed separately with respect to each criterion. On the basis of the presented course of action, the best solution has been selected from among the analyzed options.
Źródło:
Archives of Foundry Engineering; 2015, 15, 2 spec.; 55-58
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
INNOWACYJNOŚĆ KSZTAŁCENIA Z WYKORZYSTANIEM SYMULACJI INTERAKTYWNYCH W ASPEKCIE PRZYGOTOWANIA CZŁOWIEKA DO FUNKCJONOWANIA W OBECNEJ RZECZYWISTOŚCI
INNOVATION OF EDUCATION USING INTERACTIVE SIMULATIONS IN TERMS OF PREPARING A MAN TO FUNCTION IN THE PRESENT REALITY
Autorzy:
Prauzner, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/479371.pdf
Data publikacji:
2017-06-01
Wydawca:
Uniwersytet Zielonogórski. Instytut Inżynierii Bezpieczeństwa i Nauk o Pracy. Polskie Towarzystwo Profesjologiczne.
Tematy:
symulacja komputerowa
dydaktyka
technologia kształcenia
computer simulation
teaching
technology education
Opis:
W pracy przeanalizowano aktualną literaturę pedagogiczną oraz przedstawiono wyniki badań pedagogicznych dotyczące określenia efektywności kształcenia pod wpływem zastosowanych deterministycznych symulacji komputerowych podczas procesu dydaktycznego.
The paper have been presented the study of analyzes the current pedagogical literature and the results of educational research, on the determination of the effectiveness of teaching under the influence of applied deterministic simulations.
Źródło:
Problemy Profesjologii; 2017, 1; 145-156
1895-197X
Pojawia się w:
Problemy Profesjologii
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling and Optimization of Organization of Workplaces in a Foundry
Autorzy:
Kukla, S.
Powiązania:
https://bibliotekanauki.pl/articles/380728.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
application of information technology
foundry industry
automation in foundries
robotics in foundries
equipment effectiveness
modelling of production systems
simulation of production systems
work ergonomics
zastosowanie technologii informatycznych
przemysł odlewniczy
automatyzacja odlewni
robotyka w odlewniach
skuteczność urządzeń
modelowanie systemów produkcyjnych
symulacja systemów produkcyjnych
ergonomia pracy
Opis:
The paper presents a practical example of improvement of foundry production systems in terms of post-finishing of nodular iron castings produced in the conditions of bulk production for automotive industry. The attention was paid to high labour-intensive efforts, which are difficult to be subjected to mechanization and automation. The times of actions related to grinding processing of castings in three grinding positions connected with a belt conveyor were estimated with the use of a time study method. A bottleneck as well as limiting factors were specified in a system. A number of improvements were proposed, aimed at improving work organization on the castings post-finishing line. An analysis of work ergonomics at the workplace was made in order to eliminate unnecessary and onerous for the employee actions. A model of production system using the Arena software, on which a simulation experiment was conducted, was drawn up in order to visualize the analysed phenomena. The effects of the project were shown on graphs comparing times, costs, work ergonomics and overall efficiency of production equipment indicator.
Źródło:
Archives of Foundry Engineering; 2016, 16, 3; 55-58
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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