In electrical engineering, for example during the design of superconducting radio-frequency cavities, eigenmodes must be identified based on their field patterns. This allows to understand working principle, optimize performance a device and distinguish desired from parasitic modes. For cavities with simple shapes, are easily classified according number nodes antinodes in each direction as is o...

In this paper, we present the modeling and estimation aspects of a virtual reality system for plastic and reconstructive breast surgery. Our system has two modes, a model creation mode and a model tting mode. The model creation mode allows a surgeon to interactively adjust the shape of a virtual breast by varying key shape variables, analogous to the aesthetic and structural elements surgeons i...

We show how Principal Component Analysis can be used to analyse the structure of Cepheid light curves. This method is more efficient than Fourier analysis at bringing out changes in light curve shape as a function of period. Using this technique, we study the shape of fundamental and first overtone mode Cepheid light curves in the Galaxy, LMC and SMC over a wide period range. For fundamentals, ...

Micro-ring resonators have tremendous potential in optics with applications to low threshold microcavity lasers and optical sensors. The optical modes, set up in these devices by emissions from input light, form circular continuous closed beams governed by internal reflections along the boundary of the resonator. The circular mode shape is called a whispering-gallery (WG) mode. Optical resonato...

We study a three-mode (i.e., a clockwise mode, a counterclockwise mode, and a mechanical mode) coherent coupling regime of the optical whispering-gallery-mode (WGM) microresonator optomechanical system by considering a pair of counterpropagating modes in a general case. The WGM microresonator is coherently driven by a strong control laser field and a relatively weak probe laser field via a tape...

The objective of this paper is to develop an outer sheath for flexible endoscopic manipulators. This sheath can switch two states including flexible and rigid, and make a rigid curved path for inserting manipulators. The flexible mode can be curved into a required shape. The rigid mode can hold the shape of the sheath, and then keep the path for instruments. Through the managed path, the flexib...

Keywords: Frequencies and mode shapes Component mode synthesis Craig–Bampton scheme Bathe subspace iteration method Control of errors a b s t r a c t The objective in this paper is to present an approach to improve component mode synthesis solutions using subspace iterations to obtain frequency and mode shape predictions of controlled accuracy. In traditional component mode synthesis analyses, ...

Given the shape information of an object, can we find visually meaningful "n" objects in an image database, which is ranked from the most similar to the n similar one? The answer to this question depends on the complexity of the images in the database and the complexity of the objects in the query. This study represents a robust shape descriptor, which compares a given object to the objects in ...

This paper investigates how the between frame correlation of shape information can be exploited within the framework of an operationally rate-distortion (ORD) optimized coder. Contours are approximated either by connected second-order spline segments, each defined by three consecutive control points, or by segments of the motioncompensated reference contours. Consecutive control points are then...