In orthogonal graph drawing, edges are represented by sequences of horizontal and vertical straight line segments. For graphs of degree at most four, this can be achieved by embedding the graph in a grid. The number of bends displayed is an important criterion for layout quality. A well-known algorithm of Tamassia eeciently embeds a planar graph with xed combinatorial embedding and vertex degre...

A CMOS 8-bit binary type current steering Digital to Analog Converter DAC with dynamic random return to zero technique to improve dynamic performance is presented in this paper. Current steering DAC has advantage of constant output impedance and high conversion rate. To demonstrate the proposed technique, 8 bit CMOS DAC is designed and layout is prepared in 90 nm technology. Computation of Inte...

this paper presents the application of simulation software Arena and layout optimization software Plan Opt to a dynamic print and packaging company in India, Coimbatore. Some of the problems expressed by the company were large and unnecessary volume of shop floor material handling cost, difficulties and confusion over production planning, long products lead times resulting in losing customers a...

Because a production logistics system is very complex and dynamic, optimizing its layout accurately and efficiently is difficult and even impossible based on the traditional mathematical method. This paper focus on finding the bottleneck issues in production logistics system and optimizing its layout based on Flexsim software. With an actual case of production logistics system, we can find the ...

The dynamic facility layout problem (DFLP) is the problem of finding positions of departments onthe plant floor for multiple periods (material flows between departments change during the planning horizon)such that departments do not overlap, and the sum of the material handling and rearrangement costs isminimized. In this paper a new optimization algorithm inspired from colonizing weeds, Invasi...

We describe a new animation technique for supporting interactive exploration of a graph, building on the wellknown radial tree layout method. When a node is selected to become the center of interest, the visualization performs an animated transition to a new layout. Our approach makes the transition easy to follow by linearly interpolating the polar coordinates of the nodes and enforcing constr...

In this paper we present a generic algorithm for drawing sequences of graphs. This algorithm works for different layout algorithms and related metrics and adjustment strategies. It differs from previous work on dynamic graph drawing in that it considers all graphs in the sequence (offline) instead of just the previous ones (online) when computing the layout for each graph of the sequence. We in...