A recent result of J. Damon’s [4] relates the Ae-versal unfoldings of a map-germ f with the KD(G)-versal unfoldings of an associated map germ which induces f from a stable map G. We extend this result to the case where the source is a complete intersection with an isolated singularity. In a similar vein, we also relate the bifurcation theoretic versal deformation of a bifurcation problem (map-g...

1Assistant Clinical Professor, Department of Pediatric Dentistry, School of Dental Medicine, Tufts University, Massachusetts, United States 2Director of Orthodontics, Holyoke Health Center, Holyoke, Massachusetts, United States 3Clinical Assistant Professor of Orthodontics, School of Dentistry, University of Maryland, Maryland, United States 4Professor of Endodontics, School of Dentistry, Unive...

Title of dissertation: INTEGER PROGRAMMING-BASED HEURISTICS FOR VEHICLE ROUTING PROBLEMS Damon J. Gulczynski Doctor of Philosophy, 2010 Dissertation directed by: Professor Bruce Golden Applied Mathematics and Scientific Computation Robert H. Smith School of Business The vehicle routing problem (VRP) has been an active field of study by operations researchers for over 50 years. Many practical ap...

In this paper, we consider non-uniform wire-sizing. Given a wire segment of length L, let f(x) be the width of the wire at position x, 0 x L. We show that the optimal wire-sizing function that minimizes the Elmore delay through the wire is f(x) = ae ?bx , where a > 0 and b > 0 are constants that can be computed in O(1) time. In the case where lower bound (L > 0) and upper bound (U > 0) on the w...

In this paper, we introduce the concept of adaptive peer-to-peer cluster and present our contributions on SNAP, a decentralized web deployment platform. In addition, we focus on the design and implementation of a load balancing facility by using the functionalities provided by our distributed AOP middleware (Damon). Using this approach, we are able to implement new mechanisms like decentralized...

field ion microscopy (fim) and scanning tunneling microscopy (stm) have found a wide application in nanotechnology. these microscopes use a metallic nanotip for image acquisition. resolution of fim and stm images depends largely on the radius of nanotip apex; the smaller the radius the higher the resolution. in this research, for tungsten nanotip fabrication, electrochemical etching of tungsten...

Frame stability in Ilizarov external fixators is mainly dependent on the tension of the transosseous wires, which are clamped to the ring by connection bolts. It was the purpose of this biomechanical study to investigate the holding capacity of a modified bolt design featuring a ruffled wire-bolt interface (TrueLok™) and its influence on wire stiffness in comparison with that of classic bolts f...

Background: Wire Electrical discharge machining (WEDM) has higher capability for cutting complex shapes with high precision for very hard materials without using high cost of cutting tools. During the WEDM process, the wire behaves like a metal string, straightened by two axial pulling forces and deformed laterally by a sum of forces from the discharge process. Major forces acting on the wire c...

objectives: the aim of this study was to assess and compare the characteristics of commonly used initial archwires by their load deflection graphs. materials and methods : this study tested three wire designs namely copper nickel titanium (cnt), nickel titanium (niti), and multi-strand niti (msnt) archwires engaged in passive self-ligating (psl) brackets, active self-ligating (asl) brackets or ...