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Wyświetlanie 1-11 z 11
Tytuł:
National Logistics Network Design with Regard to Transport Co-Modality
Autorzy:
Żak, Jolanta
Jacyna, Ilona
Lewczuk, Konrad
Kłodawski, Michał
Jachimowski, Roland
Powiązania:
https://bibliotekanauki.pl/articles/504507.pdf
Data publikacji:
2013
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
logistics network
logistics system
transport co-modality
Opis:
The article presents a general approach to logistics network design for logistics system of Poland in aspect of co-modality. The main tasks realized by this network and its functions in cargo flow were defined. Special attention was paid to transport co-modality. Starting from the concept of co-modality the main principles for a national logistics network were defined.
Źródło:
Logistics and Transport; 2013, 19, 3; 57-64
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Product-Service System design – an example of the logistics industry
Autorzy:
Salwin, Mariusz
Nehring, Karol
Jacyna-Gołda, Ilona
Kraslawski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2180588.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
product-service systems
system design
logistic industry
supply chain
order picking
system produkt-usługa
projektowanie systemu
branża logistyczna
łańcuch dostaw
kompletacja zamówień
Opis:
Product-Service System (PSS) has been perceived since the 90s as a concept supporting enterprises of various industries in creating a competitive advantage and generating new value for customers by expanding the offer with additional services related to the product. Product-Service System (PSS) draws attention to the life cycle of products and services and the circular economy, which supports sustainable development. All the time, practitioners and theorists report the need to develop new Product-Service System (PSS) for other industries. Until now, a number of practical and methodological aspects related to design remain unresolved. The paper presents issues related to the Product-Service System (PSS) and PSS design. A literature review and gaps in available methods are presented. A conceptual framework for Product-Service System (PSS) design that has been used in the logistics industry is presented. By referring to the design of a selected process from the logistics industry, it was presented how to analyze the process during design and what methods of design support to use. Reference is made to mathematical modeling based on the optimization function and computer modeling with the use of a simulation model. Attention was also paid to the importance of knowledge of the industry and having expert knowledge about the designed processes in the systems. It is also extremely important to have the appropriate data set for a given case. In addition to the general mathematical and computer model, reference was also made to a chosen element of Product-Service System (PSS). The mathematical and simulation model included in the study refer to the process of completing customer orders in a logistics company. It is one of the most laborious and time-consuming processes. The FlexSim simulation environment was used to perform the computer simulation. A total of 15 variants were considered, which differ in terms of the scope of services provided during the process. The scope of services significantly affects the cost, time and profit. The purpose of the constructed model is to find a variant for the adopted data in which the profits will be maximized while maintaining the constraints imposed on the system.
Źródło:
Archives of Transport; 2022, 63, 3; 159--180
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using BCI and EEG to process and analyze driver’s brain activity signals during VR simulation
Autorzy:
Nader, Mirosław
Jacyna-Gołda, Ilona
Nader, Stanisław
Nehring, Karol
Powiązania:
https://bibliotekanauki.pl/articles/2067410.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
signal processing
EEG
BCI
emotion recognition
driver
virtual reality
przetwarzanie sygnałów
rozpoznawanie emocji
kierowca
symulacja wirtualna
Opis:
The use of popular brain–computer interfaces (BCI) to analyze signals and the behavior of brain activity is a very current problem that is often undertaken in various aspects by many researchers. This comparison turns out to be particularly useful when studying the flows of information and signals in the human-machine-environment system, especially in the field of transportation sciences. This article presents the results of a pilot study of driver behavior with the use of a pro-prietary simulator based on Virtual Reality technology. The study uses the technology of studying signals emitted by the human mind and its specific zones in response to given environmental factors. A solution based on virtual reality with the limitation of external stimuli emitted by the real world was proposed, and computational analysis of the obtained data was performed. The research focused on traffic situations and how they affect the subject. The test was attended by representatives of various age groups, both with and without a driving license. This study presents an original functional model of a research stand in VR technology that we designed and built. Testing in VR conditions allows to limit the influence of undesirable external stimuli that may distort the results of readings. At the same time, it increases the range of road events that can be simulated without generating any risk for the participant. In the presented studies, the BCI was used to assess the driver's behavior, which allows for the activity of selected brain waves of the examined person to be registered. Electro-encephalogram (EEG) was used to study the activity of brain and its response to stimuli coming from the Virtual Reality created environment. Electrical activity detection is possible thanks to the use of electrodes placed on the skin in selected areas of the skull. The structure of the proprietary test-stand for signal and information flow simulation tests, which allows for the selection of measured signals and the method of parameter recording, is presented. An important part of this study is the presentation of the results of pilot studies obtained in the course of real research on the behavior of a car driver.
Źródło:
Archives of Transport; 2021, 60, 4; 137--153
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Warehouse location problem in supply chain designing: a simulation analysis
Autorzy:
Szczepański, Emilian
Jachimowski, Roland
Izdebski, Mariusz
Jacyna-Gołda, Ilona
Powiązania:
https://bibliotekanauki.pl/articles/223640.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
warehouse
facilities location
solution testing
simulation model
FLEXSIM
SIMMAG3D
magazyny
lokalizacja obiektów
testowanie rozwiązań
model symulacyjny
Opis:
The facility location problem is a popular issue in the literature. The current development of world economies and globalization of the market requires continuous improvement of methods and research in this field. The location of the object determines the time of transport, affects the operational costs of the supply chain, and determines the possible amount of inventory or minimum inventory levels. These are critical issues from the point of view of designing an effective logistics system. The degree of complexity of current decision-making problems requires the construction of mathematical models and support for the decision-maker by optimization and simulation methods. A comprehensive and systemic approach to the problem allows the effective planning of supply chains. The purpose of this article was to study the sensitivity of the warehouse location problem in the supply chain. The solution was obtained based on the methodology developed under the SIMMAG3D project. The article presents the characteristics of the issue of the location of warehouse objects, the mathematical formulation of the solved problem of location and the method of its solution based on the heuristic algorithm using the modification of the Busacker-Gowen method. Then, a supply chain simulation model was developed in the FLEXSIM environment and scenario studies were performed for various input data and model parameters. The analysis and assessment of the solution based on parameters such as utilization of the potential of warehouse objects object were presented. Random change in demand described by Erlang distribution and normal distribution was considered. The analysis showed how the selection of a statistical distribution to describe the input data can affect the shape of the logistics system. The article ends with a summary of considerations and a plan for further research in the use of the simulation environment to support the decision-making process of the location of storage facilities and the functioning of supply chains.
Źródło:
Archives of Transport; 2019, 50, 2; 101-110
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena emisji spalin w transporcie kolejowym w porównaniu z transportem drogowym
Assessment of exhaust gas emission in rail transport in comparison to the road transport
Autorzy:
Gołębiowski, Piotr
Jacyna-Gołda, Ilona
Lewczuk, Konrad
Szczepański, Emilian
Powiązania:
https://bibliotekanauki.pl/articles/34603494.pdf
Data publikacji:
2015
Wydawca:
Sieć Badawcza Łukasiewicz - Poznański Instytut Technologiczny
Tematy:
emisja spalin
ocena
transport kolejowy
transport drogowy
emissions
assessment
railway transport
road transport
Opis:
Transport jest jednym z najbardziej destrukcyjnych działów gospodarki dla środowiska, z wyjątkiem niektórych rodzajów przemysłu ciężkiego i rolnictwa. Należy dążyć do ograniczenia jego negatywnego wpływu na środowisko. Jednym z działań może być ograniczenie wielkości emisji szkodliwych związków spalin. Do oceny słuszności zaproponowanych zmian można wykorzystać analizy scenariuszowe. W artykule przedstawiona została analiza i ocena wielkości emisji szkodliwych związków spalin w transporcie kolejowym w porównaniu z transportem drogowym. Analizę i ocenę przeprowadzono dla wybranych lat z uwzględnieniem trzech scenariuszy: zwiększenia wielkości potoku ruchu do przewiezienia, zmiany kształtu sieci kolejowej oraz zmiany struktury pojazdów samochodowych. Badania przeprowadzono dla wybranego ciągu komunikacyjnego.
Transport is one of the most destructive sectors of the economy for the environment, with the exception of some types of heavy industry and agriculture. The aim should be to limit its negative impact on the environment. One of the activities can be to limit the emission quantity of harmful compounds of exhaust gas. To assess the rightness of the proposed changes, you can use the scenario analysis. The article presents an analysis and assessment of the emission quantity of harmful exhaust gas compounds in the railway transport in comparison to the road transport. Analysis and assessment were carried out for selected years, taking into account three scenarios: increase of the traffic stream to transport, change of the shape of the rail network and change of the structure of the motor vehicle. The studies were conducted for the selected communication range.
Źródło:
Rail Vehicles/Pojazdy Szynowe; 2015, 4; 43-51
0138-0370
2719-9630
Pojawia się w:
Rail Vehicles/Pojazdy Szynowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wear of brake system components in various operating conditions of vehicle in the transport company
Przebieg zużycia elementów układu hamulcowego w zróżnicowanych warunkach eksploatacji samochodu w przedsiębiorstwie transportowym
Autorzy:
Świderski, Andrzej
Borucka, Anna
Jacyna-Gołda, Ilona
Szczepański, Emilian
Powiązania:
https://bibliotekanauki.pl/articles/1365251.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
car exploitation
wear of brake system components
influence of usage conditions
eksploatacja samochodów
zużycie elementów układów hamulcowych
wpływ warunków użytkowania
Opis:
Effective fleet management is related to the care for their rational use and proper diagnostics. Early detection of potential irregularities enables to prevent failures and carry out transport processes in an undisturbed way. One of the most important components, from the safety point of view, is the braking system. Laboratory tests can be used to determine the durability characteristics of individual components. Individual indications referring to operating conditions would be most desirable. The article, based on a two-year period of testing of a group of Renault vehicles fitted with disc brakes, presents measurement of wearing and tearing the system components (brake discs and brake friction insert) in a function of selected factors, depending on the time and environment in which the transport was carried out. Nonparametric statistical tests were used to analyze the results. Mann-Whitney and Kruskal-Wallis tests were used to verify the hypothesis on the insignificance of differences. Their results were compared with the results of ANOVA variance analysis. The significance of factors influencing the degree of brakes wear was checked. Possible directions of using the results of brake wear measurement for rationalization of transport processes were also indicated. Presented method may also be applied to the evaluation of other components (assemblies, subassemblies, systems) of motor vehicles.
Efektywne zarządzanie flotą pojazdów związane jest z dbałością o ich racjonalne użytkowanie i właściwą diagnostyką. Wczesne wykrywanie potencjalnych nieprawidłowości pozwala zapobiegać awariom i realizować procesy transportowe w sposób niezakłócony. Jednym z ważniejszych podzespołów, z punktu widzenia bezpieczeństwa użytkowania pojazdu, jest układ hamulcowy. Na podstawie badań laboratoryjnych można wyznaczyć charakterystyki trwałości poszczególnych jego elementów. Najbardziej pożądane są indywidualne wskazania, odwołujące się do warunków eksploatacji. W niniejszym artykule, na przykładzie badań grupy pojazdów marki Renault, wyposażonych w tarczowe mechanizmy hamulcowe, przeprowadzonych w okresie dwóch lat, dokonano pomiarów zużycia elementów układu (tarcze i klocki hamulcowe) w funkcji wybranych czynników, zależnych od czasu i środowiska, w którym realizowane były przewozy. Do analizy wyników wykorzystano nieparametryczne testy statystyczne. Celem weryfikacji hipotezy o nieistotności różnic zastosowano testy Manna-Whitney’a, oraz Kruskala-Wallisa. Ich wyniki porównano z wynikami analizy wariancji ANOVA. Sprawdzono istotność czynników wpływających na stopień zużycia hamulców. Wskazano również możliwe kierunki wykorzystania wyników pomiaru zużycia hamulców do racjonalizacji procesów transportowych. Zaprezentowana metoda może znaleźć zastosowanie także do oceny innych elementów (zespołów, podzespołów, układów) pojazdów samochodowych.
Źródło:
Eksploatacja i Niezawodność; 2019, 21, 1; 1-9
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection of a fleet of vehicles for tasks based on the statistical characteristics of their operational parameters
Autorzy:
Izdebski, Mariusz
Jacyna-Gołda, Ilona
Nivette, Marcin
Szczepański, Emilian
Powiązania:
https://bibliotekanauki.pl/articles/2172031.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
vehicles fleet management
vehicle selection for tasks
multi-criteria MAJA assessment
method
statistical analysis of vehicle operating parameters
Opis:
The article presents a method of selecting a fleet of vehicles with a homogeneous structure for tasks based on the statistical characteristics of their operational parameters. The selection of a vehicle fleet for tasks is one of the stages of vehicle fleet management in transport companies. The selection of a vehicle fleet for tasks has been defined as the allocation of a vehicle model to a given company, which is associated with the unification of the vehicle fleet to one specific type. The problem of selecting a fleet of vehicles has been presented in a multi-criteria approach. The operational parameters assessing the selection of vehicles for the tasks are mileage and the number of days to the first and subsequent failure, and vehicle maintenance costs. The developed method of selecting a fleet of vehicles for the tasks consists of two stages. In the first stage, the average operating parameter values are determined using statistical inference. In the second stage, using the MAJA method, a unified model of the fleet of vehicles operating in the enterprise is established.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 3; 407--418
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intelligent mobility : a model for assessing the safety of children traveling to school on a school bus with the use of intelligent bus stops
Autorzy:
Murawski, Jakub
Szczepański, Emilian
Jacyna-Gołda, Ilona
Izdebski, Mariusz
Jankowska-Karpa, Dagmara
Powiązania:
https://bibliotekanauki.pl/articles/2200933.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
mobility management
safety
transport of children
Internet of Things
intelligent mobility
Opis:
The aim of the article is to develop a model for assessing the safety of children’s travel. Safety is the most important indicator describing the mobility system of children, even more important than the costs of operating it. Due to the dynamic development of intelligent solutions, it is possible to undertake additional activities supporting the improvement of children’s safety when traveling to and from school. However, their implementation requires an adequate assessment of a children’s mobility system. Currently, there are no solutions that could comprehensively support the decision-making process in this sphere. The article presents the issues of children’s mobility, a literature review in this area, mathematical model for assessing school bus travel, and a computational example. The presented approach is an original solution allowing for evaluation of the existing systems and their development scenarios. In addition, it enables the comparison of children mobility systems of different complexity and scale.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 4; 695--706
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The use of a supply chain configuration model to assess the reliability of Logistics processes
Zastosowanie modelu konfiguracji łańcucha dostaw do oceny niezawodności Realizacji procesów logistycznych
Autorzy:
Wasiak, Mariusz
Jacyna-Gołda, Ilona
Markowska, Katarzyna
Jachimowski, Roland
Kłodawski, Michał
Izdebski, Mariusz
Powiązania:
https://bibliotekanauki.pl/articles/1365238.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
reliability of logistic processes
loss of time in logistic processes
supply chain
simulation models
niezawodność procesów logistycznych
straty czasu w procesach logistycznych
łańcuch dostaw
modele symulacyjne
Opis:
The article presents an approach to assessing the reliability of logistics processes implemented in supply chains in terms of time losses resulting from the selection of a variant of material flows in the supply chain. In order to define this indicator, a mathematical model of the supply chain has been developed, i.e. the parameters of the research problem, the decision variables, the constraints and the evaluation criteria. The method of evaluating the reliability of the system is presented in diagram form. The algorithm was verified based on experimental data. In order to evaluate the reliability of the logistic processes for the sample supply chain, a simulation model was developed that determines the time losses in the points and linear elements of the examined chain. Time losses are dictated by traffic delays resulting from traffic congestion on particular sections of the route and road junctions and delays in point elements in the supply chain.
W artykule przedstawiono podejście do oceny niezawodności procesów logistycznych realizowanych w łańcuchach dostaw w aspekcie strat czasu wynikających z wyboru wariantu realizacji przepływów materiałowych w łańcuchu dostaw. Na potrzeby tych badań opracowano model matematyczny łańcucha dostaw, tj. określono parametry problemu badawczego, zmienne decyzyjne, ograniczenia oraz kryteria oceny. Sposób oceny niezawodności systemu został przedstawiony w postaci schematu. Algorytm został zweryfikowany na podstawie danych eksperymentalnych. W celu oceny niezawodności procesów logistycznych dla przykładowego łańcucha dostaw opracowano model symulacyjny wyznaczający straty czasu w elementach punktowych i liniowych badanego łańcucha. Straty czasu podyktowane są opóźnieniami w ruchu drogowym wynikającymi z kongestii ruchu na poszczególnych odcinkach trasy i węzłach drogowych oraz opóźnieniami w elementach punktowych łańcucha dostaw.
Źródło:
Eksploatacja i Niezawodność; 2019, 21, 3; 367-374
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decision problems in designing database architecture for the assessment of logistics services
Autorzy:
Izdebski, Mariusz
Jacyna-Gołda, Ilona
Gołębiowski, Piotr
Gołda, Paweł
Pyza, Dariusz
Żak, Jolanta
Powiązania:
https://bibliotekanauki.pl/articles/2091168.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
database architecture
logistics services
European Portal of Logistics Services
architektura baz danych
usługi logistyczne
Europejski Portal Usług Logistycznych
Opis:
This paper presents decision problems which occur in designing database architecture for the assessment of logistics services. In the work, it was emphasized that the key stages in database design is to define a database model comprising a set of rules that characterize the structure of data in the database and a list of operations that can be performed on the data entered into the database. Research presented in the article is conducted as part of the project on the European Portal of Logistics Services (EPLOS) implemented on the basis of an agreement with the National Center for Research and Development under the EUREKA program. As part of the research carried out as part of the project, the principles of functioning of distributed architecture were developed and evaluated for the services offered by carriers or logistics operators operating on the international market. These include operators providing air services, international road, intermodal, sea transports, etc. The article indicates that the purpose of the database responsible for processing information in cargo intermodal connections is not only to collect input data on aviation and road infrastructure, but also to save the results generated by computational modules. At work, the modular database structure for assessing logistics services consisting of among others from dynamic data module, archive module, data entry module, optimization algorithm calibration module was proposed. Catalog structure and rules for supplying the database with data on the example of a railway operator were presented in detail.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2020, 108; 53--71
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elements of perfect order rate research in logistics chains
Autorzy:
Jacyna-Gołda, Ilona
Kłodawski, Michał
Lewczuk, Konrad
Łajszczak, Marcin
Chojnacki, Tomasz
Siedlecka-Wójcikowska, Teresa
Powiązania:
https://bibliotekanauki.pl/articles/223482.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
sight distance
decision
stopping
maneuver
speed
deceleration
logistics chains
order rate research
ocena stanu zamówienia
łańcuch logistyczny
Opis:
Perfect order rate (POR) is one of the superior measures of the logistics processes quality. POR is at the top of the hierarchy of key performance indicators (KPI) in supply chain and is considered as difficult to define and measure. Perfect order rate is composed of sub-measures touching technical, economic, quality and safety aspects of logistics processes. POR directly defines what the organization considers to be the perfect implementation of its tasks (and thus sets goals for the organization) and, secondly, measures the degree of achievement of these goals. The paper defines the concept of perfect order rate by including new elements to classic definition, so far rarely considered in the literature: possibility of order implementation according to standard procedures in organization and safety aspects. The concept of logistics chain and the impact of its functioning on the POR value have been defined. The picking and replenishment processes were discussed in detail as the basic elements affecting the quality of logistics processes and the value of POR. Next, the issues of logistic processes safety in warehouse facilities were discussed. The large intensity of warehouse operations along with their mechanization and automation very often leads to many hazards in warehouses and logistics chain. These hazard are usually related with warehouse workers safety. However, they can also lead to various delays or downtime in the material flows, as well as damage or reducing the quality of materials. So it was assumed that safety aspects can influencing the value of POR in the logistics chain. Due to conducted research and compiled reports indicate that many accidents in the warehouse are associated with the forklifts use as equipment for material handling. Therefore, in paper main attention was paid to hazards related with forklifts, warehouse safety speed, etc.
Źródło:
Archives of Transport; 2019, 49, 1; 25-35
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-11 z 11

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