We propose a two-mass model for the vocal folds. The aerodynamic force resulting from the air ow through the glottis is distributed over both masses, as opposed to some earlier models in which the force is allocated to the upstream mass only. This allows the choice of a symmetrical vocal-fold structure, with two identical mass-spring systems. The number of mechanical parameters is thus reduced....

We deene general concepts that extend, and simplify, the network calculus developed by Cruz 1, 2, 3] for guaranteed quality of service networks. We introduce a deenition of service curve, the extended service curve, which is the same for isolated queues and for networks of queues, and makes it possible to model nodes that otherwise do not t in the calculus of Cruz. We introduce two key technica...

High-pressure X-ray diffraction was carried out on a single crystal of gypsum compressed in a diamond anvil cell. The sample maintained its crystal structure up to 4.0 ± 0.1 GPa. The fit of pressure dependence of the unit-cell volume to the third-order Birch-Murnaghan equation yielded KT0 = 44(3) GPa and (∂KT/∂P)0 = 3.3(3), where KT0 and (∂KT/∂P)0 are the isothermal bulk modulus and its pressur...

Di erent security policy models have been developed andpublished in the past. Proven security policy models, if correctly im-plemented, guarantee the protection of data objects from unauthorizedaccess or usage or prevent an illegal information ow. To verify that asecurity policy model has been correctly implemented, it is importantto de ne and execute an exhaustive list of t...

in the linear system ax = b the points x are sometimes constrained to lie in a given subspace s of column space of a. drazin inverse for any singular or nonsingular matrix, exist and is unique. in this paper, the singular consistent or inconsistent constrained linear systems are introduced and the effect of drazin inverse in solving such systems is investigated. constrained linear system arise ...

The synthetic ecosystems approach attempts to adopt basic principles of natural ecosystems in the design of multiagent systems. Natural agent systems like insect colonies are fascinating in that they are robust, exible, and adaptive. Made up of millions of very simple entities, these systems express a highly complex and coordinated global behavior. There are several branches in di erent science...

AND Abstract. Graded nilpotent Lie groups, or Carnot Groups are to subRiemannian geometry as Euclidean spaces are to Riemannian geometry. They are the metric tangent cones for this geometry. Hoping that the analogy between subRiemannian and Riemannian geometry is a strong one, one might conjecture that the subRiemannian geo-desic ow on any Carnot group is completely integrable. We prove this co...

Title of dissertation: Compilation and Binary Editing for Performance and Security Tugrul Ince, Doctor of Philosophy, 2013 Dissertation directed by: Professor Je rey K. Hollingsworth Department of Computer Science Traditionally, execution of a program follows a straight and in exible path starting from source code, extending through a compiled executable le on disk, and culminating in an execut...

The control of a dual-arm robotic system in a manipulation task involving a exible load is considered in this paper. The task consists of following an environment surface without loss of contact. In contrast to other schemes for control of environment interaction, the method used here is purely kinematic, taking advantage of load exibility for keeping contact with the surface. A kinematic descr...

This paper presents a novel non-linear dynamical system called the \M-lattice system". This system is rooted in the reaction-diiusion model, rst proposed by Turing in 1952 to explain the formation of animal patterns such as zebra stripes and leopard spots. The M-lattice system is closely related to the analog Hoppeld network and the cellular neural network, but has more exibility in how its var...