In the paper, an optical system used in radio frequency (RF) electromagnetic field measurements is described. A new design of an optically powered and controlled modulated scatterer driven by a plastic optical fibre (POF) applied in modulated scatterer technique (MST) is presented.

This paper presents a technique of surface field reconstruction for nonseparable geometry based on the boundary element method and the singular value decomposition. The sound sources are axisymmetric bodies with arbitrary boundary conditions. The hologram data are got from a cylindrical surface that encircles the source. By the use of axisymmetric property of the body, the two-dimensional integ...

A simple dark-field photographic technique was developed which enables laboratory personnel with minimal photographic training to easily record antigen-antibody patterns on immunodiffusion plates.

This paper describes the principles of the a.c. field measurement technique, a non-contacting electromagnetic method of crack detection and sizing in metals. The development of the technique is covered, followed by examples of some of the many different applications the technique has been used for, including multi-sensor arrays for rapid manual inspection or for deployment by robotic manipulato...

We present progress toward using scanned OSSE observations for mapping and Sky Survey work. To this end, we have developed a technique for detecting pointlike sources of unknown number and location, given that they appear in a background that is relatively featureless or that can be modeled. The technique, based on the newly developed pixon concept and mean Ðeld annealing, is described, with sa...

Dielectrophoresis (DEP) has widely been used to probe the dielectric properties of particles, recently including the manipulation and study of colloidal particles. The ability to discriminate between particles collecting on an electrode against those particles in the bulk solution is required for collection rate measurements. In this paper we demonstrate how evanescent imaging methods can be us...

A segmentation framework is proposed to trace neurons from confocal microscopy images. With an increasing demand for high throughput neuronal image analysis, we propose an automated scheme to perform segmentation in a variational framework. Our segmentation technique, called tubularity flow field (TuFF) performs directional regional growing guided by the direction of tubularity of the neurites....

1 Introduction There have been extensive studies on high-T c SQUIDs that are fabricated from high temperature superconductor YBa 2 Cu 3 O 7-δ (YBCO) films and utilize grain boundary junctions formed on a bicrystal-boundary or a step-edge of substrate. Single-chip magnetometers of high-T c SQUID coupled with thin-film pickup loop(s) have been developed to have low field noises below 100 fT/Hz 1/...

The A.C. Field Measurement technique was originally developed as a non-contacting version of the A.C. Potential Drop technique, with the aim of accurately measuring the depth of surface-breaking fatigue cracks at welds underwater. Since then, the technique has expanded into many diverse applications, both underwater and in air. This paper describes the evolution of ACFM equipment from the first...

Motion Estimation (ME) is an important part of most video encoding systems, since it could significantly affect the output quality of an encoded sequence. Unfortunately this feature requires a significant part of the encoding time especially when using the straightforward Full Search (FS) algorithm. In this paper a new algorithm is presented named as the Predictive Motion Vector Field Adaptive ...