Introduction: HIPERLAN (high performance radio local area network) is a wireless LAN standard recently adopted by the European Telecommunications Standards Institute (ETSI) [1]. HIPERLAN (type 1) operates in 150MHz of spectrum in the 5.15–5.30GHz band, with five TDD channels capable of data transmission at speeds of up to 23.5Mbit/s. HIPERLAN uses a (31, 26) BCH code to encode data to be transm...

Multicarrier energy systems have systematic flexibility for and load management. The integration of different types under the title “energy hub” (EH) in multiple infrastructures such as electricity, natural gas, heat an integrated manner will meet demand at a lower cost. On other hand, desire distributed generation (DG) has increased due to their many economic technical advantages, well develop...

Abstract Optimization of the Levelized Cost Energy (LCoE) in wind farms helps ensure profitability and competitiveness project. Recent work has explored driving down LCoE by allowing multiple turbines a single farm - with different hub heights, rotor diameters, rated powers. In this work, we performed optimization Lillgrund continuously varying hub-heights to mitigate wake interference, improve...

The hub location problem appears in a variety of applications including airline systems, cargo delivery systems, and telecommunication network design. When we analyze an application separately, we observe that each area has its own characteristics. Hub location problems deal with finding the location of hub facilities and with the allocation of demand nodes to these located hub facilities. This...

What is the best distribution strategy to ship materials from a source to multiple destinations on a regular basis? This is a common question confronting logistics planners in many industries. This paper examines this issue in the context of the ocean freight industry. In particular, we tackle the economics of freighting raw materials through a transshipment hub, and propose a method to synchro...

As we all know the fuel prices especially the petrol is rising steadily day by day. Again the pollution due to vehicles in metro cities & urban areas is increasing continuously. To overcome these problems, an effort is being made to search some other alternative sources of energy for the vehicles. Again, it is also not affordable to purchase vehicles (mopeds, scooters or motorcycles) for all th...

Attila Szolnoki1, ∗ and Matjaž Perc2, 3, 4, † Institute of Technical Physics and Materials Science, Centre for Energy Research, Hungarian Academy of Sciences, P.O. Box 49, H-1525 Budapest, Hungary Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, SI-2000 Maribor, Slovenia CAMTP – Center for Applied Mathematics and Theoretical Physics, University of Maribor, ...

Conventional document and discussion websites provide users with no help in assessing the quality or quantity of evidence behind any given idea. Besides, the very meaning of what evidence is may not be unequivocally defined within a community, and may require deep understanding, common ground and debate. An Evidence Hub is a tool to pool the community collective intelligence on what is evidence...

Hubs are special facilities that serve as switching, transshipment and sorting points in many-to-many distribution systems. The hub location problem is concerned with locating hub facilities and allocating demand nodes to hubs in order to route the traffic between origin–destination pairs. In this paper we classify and survey network hub location models. We also include some recent trends on hu...