Centerline extraction of tubular structures such as blood vessels and airways in 3D volume data is of vital interest for applications involving registration, segmentation and surgical planing. In this paper, we propose a robust method for 3D centerline extraction of tubular structures. The method is based on a novel multiscale medialness function and additionally provides an accurate estimate o...

In a multi-item inventory system, such as an assemble-to-order manufacturing system or an online-retailing system, a customer order typically consists of several different items in different amounts. The average order-based backorders are the average number of customer orders that are not yet completely filled. While this is an important measure of customer satisfaction, it has not been widely ...

Hydrofoil assistance on a catamaran model was tried twenty years ago and an unexpected resistance improvement of 40% initiated the creation of a research project to investigate the effect. Today the research project is still active inspite of designs and model tests resulting in the construction of over 200 Hysucats. Theoretical efforts to determine the hydrodynamics of the Hysucat principle re...

planning of cities in order to respond to considerable needs of urban population, is one of the most important concerns of urban managers and authorities. urban development plans which have been provided to respond to these issues, have different objectives and characteristics. hence different plans are developed to plan and organize cities. most of these plans are being prepared without consid...