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Wyświetlanie 1-15 z 473
Tytuł:
A planning model for the chemical integrated system under uncertainty by grey programming approach
Autorzy:
Ren, J.
Tan, S.
Dong, L.
Zhou, Z.
Gao, S.
Pan, C.
Powiązania:
https://bibliotekanauki.pl/articles/778898.pdf
Data publikacji:
2013
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
planning
chemical integrated system
grey programming
Opis:
A model to optimize the planning of the chemical integrated system comprised by multi-devices and multi-products has been proposed in this paper. With the objective to make more profits, the traditional model for optimizing production planning has been proposed. The price of chemicals, the market demand, and the production capacity have been considered as mutative variables, then an improved model in which some parameters are not constant has been developed and a new method to solve the grey linear programming has been proposed. In the grey programming model, the value of credibility can be suggested by the decision-makers, and the results of the production planning calculated by the model can help them to achieve their desired target. An actual case has been studied by the proposed methodology, and the proposed methodology can be popularized to other cases.
Źródło:
Polish Journal of Chemical Technology; 2013, 15, 2; 16-22
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measuring the relative importance of applying engineering solutions to urban traffic intersections: a planning perspective
Autorzy:
Alrawi, F.
Powiązania:
https://bibliotekanauki.pl/articles/197693.pdf
Data publikacji:
2018
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
transportation planning
intersections
traffic light
roundabout
underpass
overpass
linear regression
planowanie transportu
skrzyżowania
sygnalizacja świetlna
rondo
przejście podziemne
wiadukt
regresja liniowa
Opis:
Summary. This research is an attempt to compare engineering solutions for traffic intersections from a planning viewpoint. In this research, various solutions have been discussed for traffic intersections (traffic light, roundabout, underpass and overpass). The research highlighted the importance of each of these solutions in urban environments and clarified all variables related to the pros, cons, costs, capacity and environmental compatibility of each of these solutions with the surrounding urban environment. Weights were developed for all these variables, then correlation was determined using the linear regression method. The analysis of statistical results shows that the creation of underpasses often achieves most of the designated goals when compared to other solutions, despite some technical difficulties and high construction costs.
Źródło:
Zeszyty Naukowe. Transport / Politechnika Śląska; 2018, 100; 5-13
0209-3324
2450-1549
Pojawia się w:
Zeszyty Naukowe. Transport / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
SWOT-TOWS analysis as a planning tool of process improvement based on PDCA cycle in service enterprise
Autorzy:
Kowalik, K.
Klimecka-Tatar, D.
Powiązania:
https://bibliotekanauki.pl/articles/114917.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Menedżerów Jakości i Produkcji
Tematy:
continuous improvement
PDCA cycle
planning
strategy
SWOT-TOWS analysis
ciągłe doskonalenie
cykl PDCA
analiza SWOT/TOWS
Opis:
The aim of this paper is to carry out a SWOT-TOWS analysis for a service enterprises - the chosen cinema. The SWOT analysis may be useful planning tool of process improvement based on PDCA cycle that is an interative, four- stage approach for continually improving. The article contains precise diagnosis of internal and external environment of the chosen service enterprise and the choice of the most matching strategy that could maximize strength, reduce weaknesses, take advantages of opportunities or minimize threats.
Źródło:
Zeszyty Naukowe. Quality. Production. Improvement; 2017, 1 (6); 152-162
2544-2813
Pojawia się w:
Zeszyty Naukowe. Quality. Production. Improvement
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving baltic sea services : a quantitative planning approach
Autorzy:
Michalk, P.
Powiązania:
https://bibliotekanauki.pl/articles/409415.pdf
Data publikacji:
2012
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
RoRO shipping
customer satisfaction
service planning
Opis:
Reduction of inventories and optimum delivery of input goods are important parameters for efficient production processes. Therefore transport processes are a vital part of industrial production, and their features are important determining factors for production planning. Especially in the Baltic Sea region, short sea roro shipping connections are an important part of transport chains but also constitute a bottleneck through their restricted schedules. The attractivity of a short-sea roro shipping connection is determined through several factors. Among these are shipping prices, transport time, frequency but also factors that cannot be influenced by the ships operator, such as obligatory driver breaks for truck drivers, which use the shipping service, the geographical position of ports and the geographical position of logistics hotspots which determine the main-transport flows. A roro shipping service that is part of an optimal connection between two logistics hotspots would have a clear advantage on the market. The paper shall present a model that allows for the analysis of complete intermodal RoRo-shipping chains in regard to their attractivity for their end-customers. The model cumulates different features of a transport chain into one indicator. Thereby allowing the optimization of RoRo shipping connection towards customer needs.
Źródło:
Research in Logistics & Production; 2012, 2, 4; 307-316
2083-4942
2083-4950
Pojawia się w:
Research in Logistics & Production
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using a Parameter Diagram as a DoE Planning Tool
Autorzy:
Barsalou, Matthew
Wilcynska, Karolina
Saraiva, Pedro Manue
Powiązania:
https://bibliotekanauki.pl/articles/27324204.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
design of experiments
parameter-diagram
p-diagram
DoE
experiment planning
Opis:
This paper describes the p-diagram (parameter-diagram) and its application in planning a DoE (Design of Experiments). A case study describing an actual problem from industry is presented where the planning phase started to go wrong as difficulties in selecting the right variables for the DoE were discovered. Furthermore, running these experiments became prohibitively expensive, due to the large number of such experiments that would be needed, and though the exploitation of a p-diagram it was then possible to come up with a feasible DoE.
Źródło:
Management and Production Engineering Review; 2023, 14, 4; 3--9
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Combining SMT and Simulated Annealing into a Hybrid Planning Method
Autorzy:
Skaruz, J.
Niewiadomski, A.
Penczek, W.
Powiązania:
https://bibliotekanauki.pl/articles/92934.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
concrete planning
genetic algorithm
satisfiability modulo theories
simulated annealing
web service composition
planics
Opis:
We present a new approach to the concrete planning (CP) - a stage of theWeb service composition in the PlanICS framework. A new hybrid algorithm (HSA) based on a combination of Simulated Annealing (SA) with Satisfiability Modulo Theories (SMT) has been designed and implemented. The main idea of our hybrid solution is to use an SMT-based procedure in order to generate an initial individual and then improve it during subsequent iterations of SA. The experimental results show that HSA is superior to the other methods we have applied to the CP problem, including Genetic Algorithm, an SMT-based approach, and our previously developed hybrids.
Źródło:
Studia Informatica : systems and information technology; 2015, 1-2(19); 43-48
1731-2264
Pojawia się w:
Studia Informatica : systems and information technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A quick algorithm for planning a path for a biomimetic autonomous underwater vehicle
Autorzy:
Praczyk, T.
Powiązania:
https://bibliotekanauki.pl/articles/135094.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
path planning
underwater vehicle
autonomy
collision avoidance
automatic control
effective planning algorithm
Opis:
Autonomous underwater vehicles are vehicles that are entirely or partly independent of human decisions. In order to obtain operational independence, the vehicles have to be equipped with specialized software. The task of the software is to move the vehicle along a trajectory while avoiding collisions. In its role of avoiding obstacles, the vehicle may sometimes encounter situations in which it is very difficult to determine what the next movement should be from an ad hoc perspective. When such a situation occurs, a planning component of the vehicle software should be run with the task of charting a safe trajectory between nearby obstacles. This paper presents a new path planning algorithm for a Biomimetic Autonomous Underwater Vehicle. The main distinguishing feature of the algorithm is its high speed compared with such classic planning algorithms as A*. In addition to presenting the algorithm, this paper also summarizes preliminary experiments intended to assess the effectiveness of the proposed algorithm.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 45 (117); 23-28
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A scalable tree based path planning for a service robot
Autorzy:
Nippun Kumaar, A. A.
Kochuvila, Sreeja
Nagaraja, S. R.
Powiązania:
https://bibliotekanauki.pl/articles/2204556.pdf
Data publikacji:
2022
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
learning from demonstration
path mapping
path planning
navigation system
mobile robot
service robot
Opis:
Path planning plays a vital role in a mobile robot navi‐ gation system. It essentially generates the shortest tra‐ versable path between two given points. There are many path planning algorithms that have been proposed by re‐ searchers all over the world; however, there is very little work focussing on path planning for a service environ‐ ment. The general assumption is that either the environ‐ ment is fully known or unknown. Both cases would not be suitable for a service environment. A fully known en‐ vironment will restrict further expansion in terms of the number of navigation points and an unknown environ‐ ment would give an inefficient path. Unlike other envi‐ ronments, service environments have certain factors to be considered, like user‐friendliness, repeatability, sca‐ lability, and portability, which are very essential for a service robot. In this paper, a simple, efficient, robust, and environment‐independent path planning algorithm for an indoor mobile service robot is presented. Initially, the robot is trained to navigate to all the possible desti‐ nations sequentially with a minimal user interface, which will ensure that the robot knows partial paths in the en‐ vironment. With the trained data, the path planning al‐ gorithm maps all the logical paths between all the des‐ tinations, which helps in autonomous navigation. The al‐ gorithm is implemented and tested using a 2D simulator Player/Stage. The proposed system is tested with two dif‐ ferent service environment layouts and proved to have features like scalability, trainability, accuracy, and repe‐ atability. The algorithm is compared with various classi‐ cal path planning algorithms and the results show that the proposed path planning algorithm is on par with the other algorithms in terms of accuracy and efficient path generation.
Źródło:
Journal of Automation Mobile Robotics and Intelligent Systems; 2022, 16, 1; 31--45
1897-8649
2080-2145
Pojawia się w:
Journal of Automation Mobile Robotics and Intelligent Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Eco-shipping project with a speed planning system for Japanese coastal vessels
Autorzy:
Sato, K.
Kano, T.
Powiązania:
https://bibliotekanauki.pl/articles/135186.pdf
Data publikacji:
2016
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
slow steaming
coastal vessel
reduce CO₂ emissions
fuel reduction
cement carrier
oil tanker
Opis:
The Eco-Shipping Project has conducted demonstrative experiments since the beginning of this year using about 40 vessels including coastal cement carriers, oil tankers, and ro-ro ships supported by the Ministry of the Environment. The goal of this project is to reduce fuel and CO₂ emission by 15%. The authors developed a voyage speed planning system which calculates a vessel optimum speed plan that takes into account weather forecast information and generates minimized fuel consumption for an operation. This paper describes an approach to optimize speed profiles on ship just-in-time voyages to save fuel and reduce CO₂ emissions, and introduces some cases of experimental results.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 46 (118); 147++154
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A trajectory planning based controller to regulate an uncertain 3D overhead crane system
Autorzy:
Aguilar-Ibanez, Carlos
Suarez-Castanon, Miguel S.
Powiązania:
https://bibliotekanauki.pl/articles/330904.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
overhead crane
adaptive control
trajectory planning
Barbalat's lemma
suwnica pomostowa
sterowanie adaptacyjne
planowanie trajektorii
Opis:
We introduce a control strategy to solve the regulation control problem, from the perspective of trajectory planning, for an uncertain 3D overhead crane. The proposed solution was developed based on an adaptive control approach that takes advantage of the passivity properties found in this kind of systems. We use a trajectory planning approach to preserve the accelerations and velocities inside of realistic ranges, to maintaining the payload movements as close as possible to the origin. To this end, we carefully chose a suitable S-curve based on the Bezier spline, which allows us to efficiently handle the load translation problem, considerably reducing the load oscillations. To perform the convergence analysis, we applied the traditional Lyapunov theory, together with Barbalat’s lemma. We assess the effectiveness of our control strategy with convincing numerical simulations.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2019, 29, 4; 693-702
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
To sustainability through interdisciplinary planning: a planner’s perspective
Autorzy:
Kozłowski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/447286.pdf
Data publikacji:
2008-03
Wydawca:
Instytut Rozwoju Miast
Opis:
There are many terms describing planning for towns and settlements. The term 'Town and Regional Planning' has been commonly used in the British Commonwealth countries while ‘Urban Planning’ and Land Use Planning’ has been more popular in the USA. Frequently used terms are also: 'Physical Planning'; 'Town and Country Planning' ;'Spatial Planning' and 'Settlement Planning', a favoured UN term. In Queensland, Australia, the recent Integrated Planning Act 1997 applied a term of 'Planning'. The term ‘Environmental Planning’, also well known, was defined by the International Union for Conservation of Nature as: "...a process whereby regional, national or subnational resource conservation or development plans are created in ways that consciously seek to minimise long term negative effects on existing levels of environmental quality ..." There are, however, views which consider Environmental Planning as all planning, that is, including planning for regions, towns and settlements of various kind (see, for instance, Faludi, 1987, Evans, 1997 or the actual New South Wales planning legislation). For this paper, originated in Queensland, the use of the term ‘planning’ was thought the appropriate choice.
Źródło:
Problemy Rozwoju Miast; 2008, 1; 72-94
1733-2435
Pojawia się w:
Problemy Rozwoju Miast
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multimodal Freight Transport Planning: a Toolbox Supporting Participants Collaboration
Autorzy:
Cichosz, Marzenna
Powiązania:
https://bibliotekanauki.pl/articles/504268.pdf
Data publikacji:
2019
Wydawca:
Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Tematy:
sustainability
intermodal transport
cooperation
logistics service provider (LSP)
chemical logistics
Opis:
This paper aims to analyse the planning of chemical transports shift from road to the more complex multimodal freight transport, and presents a toolbox developed to support the participants in the process. In literature the research problem of multimodal freight transport planning is analysed mainly from mathematical models’ perspective. There is a lack of studies focused on multimodal transport chain collaboration and the tools supporting it. Within the framework of research conducted during the ChemMultimodal „Promotion of Multimodal Transport in Chemical Logistics” project, within INTERREG Central Europe Programme, the research team identified challenges related to modal shifts in the chemical industry, and next developed the toolbox addressing these challenges and supporting participants’ collaboration on multimodal chemical freight transport planning. The toolbox embraces: (1) consulting services, (2) planning guidelines, (3) the Intermodal Links platform, which suggests intermodal connections between two points, and (4) a CO2 calculator. Conclusions from the first pilot tests showed the necessity of a complex approach to the process of modal shift planning. Transport managers testing the toolbox the most appreciated the consulting services, which include a marketing platform integrating chemical producers and distributors, logistics companies, carriers, terminal operators, rail network operators and others. This platform is used to share information on current transport patterns, existing potentials, and possible actions to establish and promote modal shift.
Źródło:
Logistics and Transport; 2019, 41, 1; 73-84
1734-2015
Pojawia się w:
Logistics and Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new planning model to support logistics service providers in selecting mode, route, and terminal location
Autorzy:
Huynh, N.
Fotuhi, F.
Powiązania:
https://bibliotekanauki.pl/articles/260169.pdf
Data publikacji:
2013
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
intermodal transport
freight logistics
network design
facility location
routing
mode choice
Opis:
In this paper, we address thefreight network design problem. A mixed integer linear program is formulated to help logistics service providers jointlyselect the best terminal locations among a set of candidate locations, shipping modes, and route for shipping different types of commodities. The developed model isapplied to two different networksto show its applicability. Results obtained from CPLEX for the case studiesare presented, and the benefit of the proposed model is discussed.
Źródło:
Polish Maritime Research; 2013, S 1; 67-73
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Model for Planning Wagonload Freight Transport Under Relative Uncertainty
Autorzy:
Cisowski, Tadeusz
Wojciechowski, Łukasz
Zubrzycki, Jarosław
Małek, Arkadiusz
Powiązania:
https://bibliotekanauki.pl/articles/2023791.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
fuzzy sets
wagon flows
transport plan
branch-and-bound method
zbiory rozmyte
przepływy wagonów
plan transportowy
metoda rozgałęzień i ograniczeń
Opis:
The study presents a mathematical model for the development of an optimal wagon transport plan in conditions of relative uncertainty. It describes an algorithm that allows searching for an optimal railroad-blocking plan in an environment of approximate initial data. The algorithm is based on the branch-and-bound method and fuzzy intervals. An example is provided of how an optimal transport plan for wagon flows given in this way can be determined.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 4; 332-341
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The village fund as a support tool in spatial planning activities: a case study of Poland
Autorzy:
Feltynowski, Marcin
Powiązania:
https://bibliotekanauki.pl/articles/623543.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
Village Fund
spatial planning
rural and urban-rural communes
Polska
Opis:
With respect to space, local authorities may deploy diverse instruments designed to promote the engagement of local communities in the spatial planning and decision-making process. The Village (Polish: Sołecki) Fund, established for rural and urban-rural communes, is one of the ways for achieving this goal. Resources from the Village Fund may be used for, e.g. spatial planning, which is one of a commune’s own tasks. The activities related to the Village Fund have triggered studies focused on the units which run such funds and, on the amounts, earmarked for goals pertaining to spatial planning. On top of that, the spatial distribution of communes delivering such tasks has also been assessed. The analyses covered statistics as well as budget queries in communes which allocated funds for activities connected with spatial planning.
Źródło:
European Spatial Research and Policy; 2019, 26, 2; 257-268
1231-1952
1896-1525
Pojawia się w:
European Spatial Research and Policy
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 473

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