Modern patterns of rural development propose a rational and respectful exploitation of agricultural resources together with the rediscovery of historical and naturalistic heritage as means to reach sustainable development. In this sense, Agritourism represents the contact point between the tourists’ request of wellbeing, genuineness and rediscovery of nature, and the offer of typical agricultur...

The Single Allocation Ordered Median Hub Location problem is a recent hub model introduced in [36] that provides a unifying analysis of a wide class of hub location models. In this paper, we deal with the capacitated version of this problem, presenting two formulations as well as some preprocessing phases for fixing variables. In addition, a strengthening of one of these formulations is also st...

HUB SIAASHING is a knowledge-based system that recommends contingency plans for American Airlines System Operations Control (SOC) during inclement weather or other airport disruptions where severe schedule reductions must be made. The system evaluates the current situation to determine flight cancellation, delay, and overfly candidates that will provide relief at the hub airport with minimal im...

Because of a huge variety of biological studies focused on different targets, i.e., from molecules to ecosystem, data produced and used in each field is also managed independently so that it is difficult to know the relationship among them. We aim to build a data hub with LOD to connect data in different biological fields to enhance search and use of data across the fields. We build a prototype...

A number of interesting issues have been addressed on biological networks about their global and local properties. The connection between the topological properties of proteins in Protein-Protein Interaction (PPI) networks and their biological relevance has been investigated focusing on hubs, i.e. proteins with a large number of interacting partners. We will survey the literature trying to answ...

As a typical discrete element dynamic system (DEDS), railway container hub scheduling system has the characteristic of high randomness, low flexibility, uncertainty of operation time and high coordination demand of facilities. In this paper, according to the analysis of layout, establishment, facility and operation procedure of railway container hub, we choose Multiagent systems (MAS) which hav...

We report the discovery of a remarkable "periodicity hub" inside the chaotic phase of an electronic circuit containing two diodes as a nonlinear resistance. The hub is a focal point from where an infinite hierarchy of nested spirals emanates. By suitably tuning two reactances simultaneously, both current and voltage may have their periodicity increased continuously without bound and without eve...

A hub set in a graph G is a set U ⊆ V (G) such that any two vertices outside U are connected by a path whose internal vertices lie in U . We prove that h(G) ≤ hc(G) ≤ γc(G) ≤ h(G) + 1, where h(G), hc(G), and γc(G), respectively, are the minimum sizes of a hub set in G, a hub set inducing a connected subgraph, and a connected dominating set. Furthermore, all graphs with γc(G) > hc(G) ≥ 4 are obt...

Maritime cabotage is a legislation published by a particular coastal country, which is used to conduct the cargo transportation between its two domestic ports. This paper proposes a two-phase mathematical programming model to formulate the liner hub-and-spoke shipping network design problem subject to the maritime cabotage legislations, i.e., the hub location and feeder allocation problem for p...

Indian telecom services industry has been witnessing a stupendous growth since 1990s. Over the years, subscriber base has grown steadily and it crossed 950 million marks in March 2012. India with second largest subscriber base also offers one of the lowest call tariffs in the world. But in the euphoria of high growth in services, the equipment manufacturing received least priority. India mainly...