sacrificed, efficient controls have to be studied and developed. Feedback control techniques use measurement and estimates of the system states for control of rigid-body motion and vibration suppression. In this case, using measurements at the hub and end-point of the manipulator as the basis for applying control torque at the hub will allow control of the end-point position. Thus, feedback con...

Delta Air Lines is the first and only airline to carry over 100 million passengers in a year, carrying over 105,000,000 passengers in 1998. To provide service to this number of passengers, Delta operates a “hub and spoke” flight system. In the hub and spoke system, certain key airports, or hubs, are designated as the origination point of a large number of flights, thereby allowing a passenger d...

Abstract For the energy hub system configuration, there are problems such as high operation and maintenance costs, poor safety, low efficiency of renewable utilization large pollution emissions. This paper proposes an configuration optimization method based on analytic hierarchy grey correlation analysis. First, configure model. Second, establish a model that includes installation efficiency, f...

The optimal locating of facilities has large effects on economic benefits, providing satisfactory service and levels of customer satisfaction. One of the new topics discussed in location problems is hub location and hub facilities are subject to unpredictable disruptions. This paper proposes a nonlinear integer model for reliable single allocation hub location problem that considers backup hub,...

Energy hubs, which integrate multiple energy vectors through converters, can enhance the value of Integrated Local Systems (ILES) via increased flexibility and reduced costs. However, uncertain renewable non-convex, non-linear properties flows complicate modelling operation hub systems. This paper develops chance-constrained optimization methods for planning systems under uncertainty. The formu...

abstract one of the basic assumptions in hub covering problems is considering the covering radius as an exogenous parameter which cannot be controlled by the decision maker. practically and in many real world cases with a negligible increase in costs, to increase the covering radii, it is possible to save the costs of establishing additional hub nodes. change in problem parameters during the pl...

Facilitated by new standards and middleware technologies, enterprise application software is increasingly characterized by a high degree of modularity. On an organizational level, this is reflected by the goal of dominant system vendors (hubs) to form loosely-coupled hub-and-spoke networks with smaller niche players (spokes) that complement their solutions. This paper aims at explaining differe...