Abstract. The article discusses the improvement of methods tracing transport networks in context optimal planning cities and settlements. It is necessary to provide a systematic approach planning. development master plan considers division territory into traditional functional zones. Functional zones are modeled form circles rectangles. Then these divided separate subsets. Objects located insid...

In this paper, study the Logistics research status at home and abroad, analyze the importance of logistics transport to economic and business, as well as the three main problems in the logistics transport of agricultural products in China. On the basis of front, evaluation index of network transport is determined, as well as the optimization problem of transportation. Finally experimental resul...

A cross-layer network optimization problem is considered. It involves network and transport layers, treating both routing and flows as decision variables. Due to the nonconvexity of the capacity constraints, when using Lagrangian relaxation method a duality gap causes numerical instability. It is shown that the rescue preserving separability of the problem may be the application of the augmente...

An important issue in the design and deployment of communication networks is the issue of network restoration to address for various types of failures. In this exposition, we consider a variety of networks and networking technology and argue that networks can be broadly classified as either traffic networks or transport networks. We then present optimization models for network protection for li...

introduction: intravenous general anesthetic agents are among the most important and widely used anesthetic drugs in the clinical practice. many pharmacological studies have shown that potentiation of gaba and glycine on their receptors is the most plausible mechanism. nevertheless, there is limited information on the effects of co-administration of two or more of these agents. however, experim...

We introduce a mixed integer linear modeling approach for the optimization of dynamic transport networks based on the piecewise linearization of nonlinear constraints and we show how to apply this method by two examples, transient gas and water supply network optimization. We state the mixed integer linear programs for both cases and provide numerical evidence for their suitability.