Network diagrams are a familiar graphic form that can express many diierent kinds of information. The problem of automating network-diagram layout has therefore received much attention. Previous research on network-diagram layout has focused on the problem of aesthetically optimal layout, using such criteria as the number of link crossings, the sum of all link lengths, and total diagram area. I...

In VLSI layout of interconnection networks, routing two-point nets in some restricted area is one of the central operations. It aims usually to minimize the layout area, while reducing the number of wire bends is also very desirable. Here, we consider connecting sets of N inputs on a line and N outputs on a perpendicular line, inside a right triangle, where the output order is a given permutati...

Evolution perfected brain design by maximizing its functionality while minimizing costs associated with building and maintaining it. Assumption that brain functionality is specified by neuronal connectivity, implemented by costly biological wiring, leads to the following optimal design problem. For a given neuronal connectivity, find a spatial layout of neurons that minimizes the wiring cost. U...

Abs t r ac t . In this paper we deal with the layout of interconnection networks on three-dimensional grids. In particular, in the first, part we prove a general formula for calculating an exact value for the lower bound on the volume. Then we introduce the new notion of k-3D double channel routing and we use it to exhibit an optimal three-dimensional layout for butterfly networks. Finally, we ...

natural frequency is one of the parameters that represent useful information about the dynamic behavior of structures. controlling this parameter can decrease the probability of damage under dynamic loading. weight optimization on layout and sizing with frequency constraints is a well known problem because of its highly non-linear behavior. improved ray optimization (iro) algorithm is utilized ...

A mathematical formulation for the simultaneous design and layout of batch process facilities is proposed. The model determines simultaneously the optimal plant topology (i.e. the choice of the plant equipment and the associated connections), the layout (i.e. the arrangement of processing equipment storage vessels and their interconnecting pipe-work over a two-dimensional space) and the optimal...

The block layout design problem with unequal areas, which was originally formulated by Armour and Buffa in the early 1960s, is a fundamental optimization problem encountered in many manufacturing and service organizations. In this paper, we present a new modelling framework for effectively finding global optimal solutions for the block layout design problem with unequal areas. The most fundamen...

As the number of cores in multicore processors and their operating frequency continue to grow, processor power consumption increases and leads to an escalation in chip temperatures. This escalation causes today’s multicore processors’ performance to be limited by chip thermal constraints rather than process technology or circuit design. As a result, Dynamic Thermal Management (DTM) has an incre...

Selection of transmission systems motor vehicles used on highways is high-ly important in terms fuel consumption and vehicle efficiency. In this study, effect using 3 different gearboxes a passenger car (automatic gearbox, CVT gearbox manuel gearbox) driveline friction losses engine operation interval by means GT SUITE modelling programme. The model formed has been simulated driving cycles (WLT...

This paper presents the design of a multiuser, large-scale 3-D layout system: Collaborative Immersive Architectural layout (CIAO). In contrast to many existing systems that sacrifice responsiveness to maintain consistency, CIAO achieves optimal response and notification time without compromising awareness or consistency. The optimal responsiveness is achieved by a new multicastbased, optimized ...