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    Wyświetlanie 1-12 z 12
    Tytuł:
    Life Cycle Costs of passenger transportation system : Case study of Wroclaw city agglomeration
    Autorzy:
    Nowakowski, T.
    Młyńczak, M.
    Werbińska-Wojciechowska, S.
    Dziaduch, I.
    Tubis, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069506.pdf
    Data publikacji:
    2014
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    life cycle cost (LCC)
    transportation system
    rail cars
    Opis:
    In the article authors are interested in the issues of LCC analysis implementation in the area of passenger transportation systems performance. In the first step of research analysis, there is provided a briefly literature overview of the analysed research area. Thus, the applicability of LCC analysis is investigated on the existing passenger transportation system located in Lower Silesia, Poland.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2014, 5, 2; 109--120
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Oil transport in port. Part 1. Port oil piping transportation system safety and resilience impacted by its operation process
    Autorzy:
    Kołowrocki, K.
    Kuligowska, E.
    Soszyńska-Budny, J.
    Torbicki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2068781.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    port oil piping transportation system
    operation impacts
    safety
    resilience
    cost analysis
    cost optimization
    Opis:
    The paper is concerned with the model of critical infrastructure safety prediction with considering its operation process impacts. The general approach to the prediction of critical infrastructure safety and resilience is proposed and the safety and resilience indicators are defined for a critical infrastructure impacted by its operation process. Moreover, there is presented the model application for port oil piping transportation system safety and resilience prediction. Further, the cost analysis of critical infrastructure operation process is proposed and applied to the considered piping system.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2018, 9, 2; 11--28
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Transportation Cost Optimization of an Online Business Applying Vogel’s Approximation Method
    Autorzy:
    Debapriya, Banik
    Hasan, Md. Zahid
    Powiązania:
    https://bibliotekanauki.pl/articles/1178001.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Cost optimization
    Transportation model
    Vogel’s approximation method
    ‘C’ program
    Opis:
    Red Tech. BD, an online based business company intended to spread their business over whole Rajshahi District. As there is no cost for manufacturing the only factor that can maximize the profit is the product transportation cost. Determination of the optimum & reliable transportation medium was the first challenge. A suitable destination for distributing the products in the selected location has been chosen carefully on the basis of demand & minimum rent of warehouse. First, the mathematical model has been formed & then it has been solved by a program written in ‘C’ programming language. The program can show the result of the optimum amount of supply with the corresponding destination together in a single output. Verification of the program or ‘code’ has been done with the help of hand calculation. The company can determine the supply unit with destination to minimize the transportation cost before every shifting of products from warehouse to the destination.
    Źródło:
    World Scientific News; 2018, 96; 179-190
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Oil transport in port. Part 0. Port oil piping transportation system safety without outside impacts
    Autorzy:
    Kołowrocki, K.
    Kuligowska, E.
    Soszyńska-Budny, J.
    Torbicki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2068774.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    port oil piping transportation system
    outside impacts
    safety
    cost analysis
    Opis:
    The paper is concerned with the model of critical infrastructure safety prediction without considering outside impacts. The general approach to the prediction of critical infrastructure safety is proposed and the safety indicators are defined for a critical infrastructure free of any outside impacts. Moreover, there is presented the model application for port oil piping transportation system safety prediction. Further, the cost analysis of critical infrastructure operation process is proposed and applied to the considered piping system.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2018, 9, 2; 1--10
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Computer aided prediction of complex technical systems operation cost
    Autorzy:
    Kołowrocki, K.
    Mazurek, J.
    Soszyńska-Budny, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2069547.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    complex technical system
    operation process optimization
    operation cost analysis
    transportation system
    Opis:
    There is presented the computer program is based on methods and algorithms for prediction of the operation cost of the complex technical system in variable operation conditions. The program allows to determine of the costs of the non-repairable and repairable complex technical systems before and after their operation processes optimization. The procedure of the computer program use and its application to operation cost analysis of the port oil transportation system are given.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2011, 2, 2; 337--344
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reference class forecasting in Icelandic transport infrastructure projects
    Referenzklasse vorhersage in Icelandic infrastruktur projekts
    Autorzy:
    Fridgeirsson, T. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/374328.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    optimism bias
    planning fallacies
    cost forecasting
    reference class forecasting
    transportation projects
    Opis:
    Previous studies have indicated that the majority of infrastructure projects have cost overruns. The root causes are traced to political, technical and psychological reasons at the initial stage of the project. The consequence is either unintentional overoptimistic forecasting of perceived results or calculated interpretation of facts in favour of personal and political interests. These phenomena are called planning fallacies and strategic misrepresentation, respectively. A step-wise procedure to avoid planning fallacies and strategic misrepresentation is called the outside view. The outside view bypasses human biases by using past experience and empirical data from past projects. It has evolved into a professional practice through a method called reference class forecasting which has been shown to provide improved cost forecasting accuracy in the initial stage of a project. The study reported in this paper examined reference class forecasting as a means of improving cost forecasting in the planning stage of the project lifecycle. Data from the Icelandic Road Administration (ICERA) were assembled in a cost forecasting model to determine if it might be possible to improve forecasting accuracy. The results proved inconclusive; however, a comparison with findings from similar projects in the UK showed that although cost overruns followed a similar curve, the chance of occurrence is significantly lower at the planning stage after the decision to proceed has been taken.
    Frühere Studien haben gezeigt, dass die Mehrheit der Infrastrukturprojekte Kostenüberschreitungen haben. Die Ursachen sind verfolgt zu politischen, technischen und psychologischen Gründen in der Anfangsphase des Projekts. Die Folgen sind entweder unbeabsichtigt zu optimistischen Prognosen der empfundenen Ergebnisse oder berechneten Interpretation von Fakten zugunsten von persönlichen und politischen Interessen. Diese Phänomene werden als Planungs Täuschungen und strategische Täuschung sind. Eine stufenweise Vorgehensweise zu vermeiden Planung Täuschungen und strategische Täuschung ist die Außenansicht aufgerufen. Die Außenansicht umgeht menschliche Vorurteile durch Erfahrungen aus der Vergangenheit und empirischen Daten von früheren Projekten verwendet wird. Es hat sich zu einem professionellen Praxis durch ein Verfahren namens Referenzklasse Prognosen entwickelt, die eine verbesserte Kostenprognosegenauigkeit in der Anfangsphase eines Projekts zu schaffen gezeigt wurde. Die Studie, die in dieser Veröffentlichung untersuchten Referenzklasse Prognose als Mittel zur Kostenprognosen in der Planungsphase des Projektlebenszyklus zu verbessern. Die Daten der isländischen Straßenverwaltung (Iceras) wurden in einem Kostenprognosemodell zusammengebaut, um zu bestimmen, ob es möglich sein könnte, Prognosegenauigkeit zu verbessern. Die Ergebnisse bewiesen nicht schlüssig; aber ein Vergleich mit den Ergebnissen aus ähnlichen Projekten in Großbritannien zeigten, dass, obwohl Kostenüberschreitungen eine ähnliche Kurvegefolgt, die Möglichkeit des Auftretens ist deutlich niedriger in der Planungsphase, nachdem die Entscheidung getroffen wurde, um fortzufahren.
    Źródło:
    Transport Problems; 2016, 11, 2; 103-115
    1896-0596
    2300-861X
    Pojawia się w:
    Transport Problems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structural synthesis of pipeline transportation of industrial enterprises
    Strukturnyjj sintez sistem trudoprovodnogo transporta promyshlennykh predprijatijj
    Autorzy:
    Tararychkin, I.
    Nechayev, G.
    Slobodyanyuk, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/791828.pdf
    Data publikacji:
    2012
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    pipeline
    transportation
    structure
    industrial enterprise
    transport system
    cost
    manufacture
    installation
    piping system
    Opis:
    In the article the impact of the structure of pipeline transportation systems on the efficiency of their operation is examined. It is shown that, depending on the assumed structure, transport systems can be characterized by different performance characteristics. It is established that the structure of the system influences the development of the aging process and decrease system performance. Recommendations on the choice of the structure of systems that can be used at the design stage are given.
    Рассмотрены вопросы влияния структуры трубопроводных транспортных систем на эффективность их функционирования. Показано, что в зависимости от принятой структуры, транспортные системы могут характеризоваться различными эксплуатационными показателями. Установлено, что структура системы оказывает влияние на развитие процессов старения и снижение эффективности функционирования систем.
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 3
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Oil transport in port. Part 2. Port oil piping transportation system safety and resilience impacted by the climate-weather change process
    Autorzy:
    Kołowrocki, K.
    Kuligowska, E.
    Soszyńska-Budny, J.
    Torbicki, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2068778.pdf
    Data publikacji:
    2018
    Wydawca:
    Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
    Tematy:
    port oil piping transportation system
    climate-weather change impacts
    safety
    resilience
    cost analysis
    Opis:
    The paper is concerned with the application of the model of critical infrastructure safety prediction with considering its climate-weather change impacts. The general approach to the prediction of critical infrastructure safety and resilience is proposed and the safety and resilience indicators are defined for a critical infrastructure impacted by climate-weather change process. Moreover, there is presented the model application for port oil piping transportation system safety and resilience prediction. Further, the cost analysis of critical infrastructure impacted by climate-weather change process is proposed and applied to the considered piping system.
    Źródło:
    Journal of Polish Safety and Reliability Association; 2018, 9, 2; 29--42
    2084-5316
    Pojawia się w:
    Journal of Polish Safety and Reliability Association
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optimum transportation of relief materials aftermath the disaster
    Autorzy:
    Nautiyal, A.
    Kumar, A.
    Poddar, A.
    Parajuli, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/2055756.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    disasters mitigation
    transportation
    linear programming
    demand
    supply
    cost
    time
    skutki katastrof
    transport
    programowanie liniowe
    popyt
    podaż
    koszt
    czas
    Opis:
    Purpose: Natural disasters disrupt not only the lives of individuals but also the functioning of society. Given the unpredictability of disasters and the uncertainty associated with them, preparation is the best way to mitigate and reduce the effects of the disaster. Design/methodology/approach: The study presents a mathematical model in the form of a multi-objective linear programming problem for the relief distribution from the airports which minimizes the total operational cost as well as travel time. Further, the solution approach and analytical results have also been discussed. Findings: The main aims at the preparedness stage are to identify and build infrastructures that might function as useful operation centres during a disaster. The study also provides decisions that include the type and number of vehicles for each affected location. Research limitations/implications: Airports can function as centres for relief collection and distribution. However, relief operations carried out through airports are often subject to problems such as stockpiling. Further, various modes are available for the transport of relief supplies- air, water, and land transport modes primarily. While aircraft and helicopters are faster, their costs of operation are too high. Instead, trucks are economical but very slow as compared to aircraft. Practical implications: The choice of model depends on many factors including the availability of vehicles, availability of routes, and criticality of situations. The choices made in turn affect the costs and the time of operations. Originality/value: The model converts a disaster scenario into a demand-supply problem with the aim being to decide allocations at specified intervals of time.
    Źródło:
    Journal of Achievements in Materials and Manufacturing Engineering; 2021, 109, 1; 26--41
    1734-8412
    Pojawia się w:
    Journal of Achievements in Materials and Manufacturing Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Theoretical basis of automobile freight system with changeable trailers
    Teoreticheskie osnovy sistemy avtomobilnykh perevozok so smennymi pricepami
    Autorzy:
    Slobodyanyuk, M.
    Gribinichenko, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/792666.pdf
    Data publikacji:
    2012
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    car
    semi-trailer
    cargo transportation
    freight system
    cost
    distance
    automobile freight system
    road freight
    rolling stock
    automobile transport
    Opis:
    In the article the theoretical basis for calculating the productivity of the vehicle and determination of the rational distance whileorganizing the cargo transportation with the change of trailers is offered.
    Предложены теоретические основы расчета производительности автомобиля и определения рационального расстояния перевозки при организации грузовых перевозок со сменой прицепов.
    Źródło:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 3
    1641-7739
    Pojawia się w:
    Teka Komisji Motoryzacji i Energetyki Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Attaining a good primal solution to the uncapacitated transportation problem
    Autorzy:
    Juman, Z. A. M. S. Silmi
    Nawarathne, N. G. S. A.
    Hisam, M. S. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2141215.pdf
    Data publikacji:
    2022
    Wydawca:
    Fundacja Centrum Badań Socjologicznych
    Tematy:
    logistics and supply chain management
    uncapacitated transportation problem
    supply and demand requirements
    primal solution
    minimal total cost solution
    Opis:
    Transportation of products from sources to destinations with minimal total cost plays an important role in logistics and supply chain management. The Uncapacitated Transportation Problem (UTP) is a special case of network flow optimization problem. The prime objective of this UTP is to minimize the total cost of transporting products from origins to destinations subject to the respective supply and demand requirements. The UTP consists of special network structure. Due to the special structure of this problem, the transportation algorithm is preferred to solve it. The transportation algorithm consists of two major steps: 1) Finding an Initial Feasible Solution (IFS) to TP and 2) Examining the optimality of this IFS. A better IFS generates a lesser number of iterations to obtain a Minimal Total Cost Solution (MTCS). Recently, Juman and Nawarathne (2019)’s Method was introduced to find an IFS to UTP. In this paper, the Juman and Nawarathne (2019)’s Method is improved to get a better IFS to a UTP. A comparative study on a set of benchmark instances illustrates that the new improved method provides better primal solutions compared to the Juman and Nawarathne (2019)’s Method. The proposed method is found to yield the minimal total cost solutions to all the benchmark instances.
    Źródło:
    Journal of Sustainable Development of Transport and Logistics; 2022, 7, 1; 51-61
    2520-2979
    Pojawia się w:
    Journal of Sustainable Development of Transport and Logistics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Efficient heuristic for non-linear transportation problem on the route with multiple ports
    Autorzy:
    Krile, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/260030.pdf
    Data publikacji:
    2013
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    non-linear transportation problem
    Multi-destination Routing Problem
    Minimum Cost Multi-Commodity Flow Problem
    Capacity Management of Container Ships
    Opis:
    We need a better transport planning tool for loading maximization and transport cost minimization on the voyage route with multiple loading/unloading (discharging) ports. The implemented heuristic algorithm is able to find out an appropriate routing sequence with maximal earnings and profit. In the same time it looks for minimal loading/discharging and transshipment costs, but with fulfillment of cargo demands in a number of ports on the route. The efficient algorithm for optimal transport of N cargo loads (e.g. contingent of containers) for ships with limited capacity is being developed. This efficient tool may significantly reduce transport costs and ensure maximal profit to freight forwarders. Also, it can be applied for supply chain management of different goods from numerous vendors. The proposed algorithm shows acceptable complexity that means that such optimization tool can be used in shipping supported with limited computing power.
    Źródło:
    Polish Maritime Research; 2013, 4; 80-86
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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