نتایج جستجو برای: step fixed charge transportation problems

تعداد نتایج: 1178733  

Journal: :J. Applied Mathematics 2012
Hecai Yuan Guohong Shi

Equilibrium problems which were introduced by Fan 1 and Blum and Oettli 2 have had a great impact and influence on the development of several branches of pure and applied sciences. It has been shown that the equilibrium problem theory provides a novel and unified treatment of a wide class of problems which arise in economics, finance, image reconstruction, ecology, transportation, network, elas...

2008
James R. Geraci

The rising cost of fossil fuels, together with a push for more eco-friendly methods of transportation, has increased interest in and demand for electrically powered or assisted vehicles. The majority of these electric or hybrid electric vehicles will be, for the foreseeable future, powered by batteries. One of the major problems with batteries is their aging. For batteries, aging means that the...

Journal: :Operations Research 2007
Keely L. Croxton Bernard Gendron Thomas L. Magnanti

Network flow problems with non-convex piecewise linear cost structures arise in many application areas, most notably in freight transportation and supply chain management. In the present paper, we consider mixed-integer programming (MIP) formulations of a generic multi-commodity network flow problem with piecewise linear costs. The formulations we study are based on variable disaggregation tech...

In this paper, the transportation problem under the carbon emission trading program ismodelled by mathematical programming and genetic algorithm. Since green supply chain issuesbecome important and new legislations are taken into account, carbon emissions costs are included inthe total costs of the supply chain. The optimisation model has the ability to minimise the total costsand provides the ...

Journal: :EURO Journal on Transportation and Logistics 2022

Planning in public transportation is traditionally done a sequential process: After the network design process, lines and their frequencies are planned. When these fixed, timetable determined based on timetable, vehicle crew schedules optimized. each step, passenger routes adapted to model behavior of passengers as realistically possible. It has been mentioned many publications that such proces...

2007
Shashi Shekhar Peter A. Hancock

The research in traffic flow and safety has proceeded on two different tracks. The traffic flow research has focused on macroscopic aspects and aggregate behavior, while safety research has focused on the traveller's microscopic view of the transportation system. This dichotomy of research methodology has made it difficult to study many issues in intelligent vehicle highway systems in an integr...

Journal: :The Journal of Physiology 1967

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