the first international convention on maritime transportation is thebrussels’ convention of 1924. this convention was widely acceptedthroughout the world and; thus, lasted for a long time due to the widespreadsupport of the countries possessing fleet for this convention and the lack ofexistence of a legal document in terms of maritime transportation. thepassage of time together with innovations...

Timely supply of vital materials to disaster hit areas plays a critical role in emergency relief. The problem involves warehouse selection, and fleet routing and scheduling so as to meet demand in the strict time window. The problem is NP-hard in general and extremely difficult to solve. The congestion caused by heavy traffic further aggravates the problem. To obtain a scalable solution, a new ...

Over 90% of the world trade is carried by the international shipping industry. As most of the countries are developing, seaborne trade continues to expand to bring benefits for consumers across the world. Studies show that world trade will increase 70-80% through shipping in the next 15-20 years. Present global fleet of 70000 commercial ships consumes approximately 200 million tonnes of diesel ...

Abstract We present a market model of liberalized aviation with independent decision makers. The consists hierarchical, trilevel optimization problem where perfectly competitive budget-constrained airports decide (in the first level) on optimal runway capacity extensions and airport charges by anticipating long-term fleet investment medium-term aircraft scheduling decisions taken set imperfectl...

The characterization of ship routes and route similarity measurement based on Automatic Identification System (AIS) data are topics various scientific interests. Common research approaches use available AIS identifiers types. However, assessing profiles for individual fleets requires collecting from secondary sources, dedicated software libraries or the creation specific methods. Using an open-...

In Korea, fishing boats account for 65,452 out of 71,174 coastal ships, and aging ships are a leading cause environmental problems economic loss. To solve this problem, the government has enacted policy to promote development distribution vessels. Electric propulsion systems hybrid suggested as alternatives. However, study whether system is environmentally friendly, measuring performance conven...

The efficiency of transportation requests fulfillment can be increased through extending the problem of vehicle routing and scheduling by the possibility of subcontracting a part of the requests to external carriers. This problem extension transforms the usual vehicle routing and scheduling problems to the more general integrated operational transportation problems. In this contribution, we ana...

In order to realize the comprehensive utilization of multiple energy sources in renewable ships and improve rate system economy, this paper studies matching optimization power generation ship system. Firstly, structure is introduced. Considering natural conditions actual situation for first time, wind generation, photovoltaic storage devices are configured The objective function including annua...

In wireless data networks, Radio Resource Management (RRM) strategies are an important issue for supporting Quality of Service (QoS). This paper evaluates the performance of two innovative scheduling disciplines that allow the subscribers to transmit data with guaranteed QoS in a packet switched radio network based on the General Packet Radio Service (GPRS). In particular, the analysed strategi...