given a set  of  points in the plane and a constant ,-center problem is to find two closed disks which each covers the whole , the diameter of the bigger one is minimized, and the distance of the two centers is at least . constrained -center problem is the -center problem in which the centers are forced to lie on a given line . in this paper, we first introduce -center problem and its constrain...

A fast SVM learning algorithm is proposed according to incremental learning and center convex hull operator. It is established on analyzing the relevance of support vector and convex hull from the angle of calculation geometry. The convex hull of current training samples is solved in the first place. Further, Euclidean distance elimination is applied to convex hull. Meanwhile, every time when t...

134 Donjeux, Lorraine, Quebec, J6Z 3C5, Canada; 2Canadian Wildlife Service, Canada Center for Inland Waters, 867 Lakeshore Road, Burlington, Ontario, L7R 4A6, Canada; 3Canadian Wildlife Service, Toxic Chemicals Program Section, National Wildlife Research Center, 100 Gamelin Blvd., Hull, Quebec, KIA 0E7, Canada; 4Inland Waters Directorate, Ontario Region Water Resources Branch, 75 Farquhar St., ...

By actively controlling the rotation of its pendulum, a vertical axis pendulum wave energy converter can generate significantly more net electricity from ocean waves than what would otherwise be possible through a passively swinging pendulum. This suggests that such converters can optimize their performance by incorporating active control schemes within their ever– changing ocean wave environme...

The authors describe and demonstrate a hierarchical reconstruction algorithm for use in noisy and limited-angle or sparse-angle tomography. The algorithm estimates an object's mass, center of mass, and convex hull from the available projections, and uses this information, along with fundamental mathematical constraints, to estimate a full set of smoothed projections. The mass and center of mass...

Stavanger University Hospital, Stavanger, Norway; Institute of Internal Medicine, University of Bergen, Bergen, Norway; University of Pavia Maugeri Foundation, Pavia, Italy; Fondazione Cardiocentro Ticino, Lugano, Switzerland; University of Hull, Castle Hill Hospital, Kingston-upon-Hull, UK; Institut für Herzinfarktforschung Ludwigshafen an der Universität Heidelberg, Ludwigshafen, Germany; Kar...

aImperial College London, and Chelsea and Westminster Hospital, London, UK bDepartment of Gastroenterology and Hepatology, Chaim Sheba Medical Center, Tel Hashomer, Israel cDepartment of Medicine B, University Hospital Münster, Münster, Germany dDepartment of Gastroenterology, Venizeleio General Hospital, Heraklion, Crete, Greece eDepartment of Gastroenterology and Hepatology, University and Me...

1Institute of Immunobiology, Kantonal Hospital St Gallen, St Gallen, Switzerland; 2Centre for Immunology and Infection, Department of Biology and Hull York Medical School, University of York, York, United Kingdom; 3Institute of Pharmaceutical Sciences, ETH Zürich, Zürich, Switzerland; 4Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands; 5MD Anderson Cancer C...

One of the most efficient methods of reducing drag on planing craft is the use of transverse step on the bottom of a hull. Applying steps on the hull reduces the contact area with water and as a result, it reduces drag of the craft. Planing craft are able to have one or two transverse steps. In this paper, numerical hydrodynamic performance of the stepped planing craft and its step height effec...