Abstract:IT HAS RECENTLY BEEN SHOWN THAT AMORPHOUS SOLIDS CAN BE UTILIZED AS VOLUME HOLOGRAPHIC RECORDING MEDIA USING SUFFICIENTLY INTENSE WRITE BEAMS AT APPROPRIATE WAVELENGTH(S). THE COMMERCIAL POTENTIAL FOR PASSIVE MICRO-OPTICAL COMPONENTS MANUFACTURED FORM THE GLASSY STATE IS SIGNIFICANT. GLASS CAN BE… more
Abstract:X-RAY FLUORESCENCE IS AN ESTABLISHED TECHNOLOGY FOR MEASURING THE BODY BURDEN OF LEAD VIA THE BONE LEAD CONCENTRATION. STATE-OF-THE- ART MEASUREMENTS HAVE AN UNCERTAINTY OF APPROXIMATELY 5 MICROGRAMS LEAD PER GRAM BONE MINERAL AND TAKE 30 MINUTES. TO DO MASS SCREENING OF THE HIGH RISK PEDIATRIC… more
Abstract:POSITRON EMISSION TOMOGRAPHY (PET) IS A NON-INVASIVE MEDICALIMAGING TECHNIQUE WHICH PROVIDES AN IMAGE OF A POSITRON EMITTING RADIO PHARMACEUTICAL AND ITS DISTRIBUTION IN THE BODY ON A METABOLIC LEVEL. AT THE PRESENT TIME, THE PERFORMANCE OF THIS INSTRUMENT IS LIMITED BY THE NUCLEAR SENSORS USED. THE… more
Abstract:ONE OF THE MOST ACTIVE AND CHALLENGING FIELDS IN MOLECULAR BIOLOGY TODAY IS THE GENETIC STUDY OF EUKARYOTIC SYSTEMS. AN ESSENTIAL, BUT OFTEN RATE LIMITING STEP IN THIS AREA IS THE SCREENING OF DNA LIBRARIES FOR GENE ISOLATION. THIS PROCEDURE USES RADIOLABEL HYBRIDIZATION TECHNIQUES AND… more
Abstract:BREAST CARCINOMA IS ONE OF THE MAJOR CAUSES OF DEATH IN WOMEN, AFFECTING ABOUT 1 IN 10 NORTH AMRICAN WOMEN. IT HAS BEEN SHOWN, HOWEVER, THAT THE RISK OF MORTALITY FROM BREAST CANCER CAN BE REDUCED WITH EARLY DETECTION. MAMMOGRAPHY IS THE MOST SENSITIVE TECHNIQUE CURRENTLY AVAILABLE FOR THE DETECTION… more
Abstract:NEW TECHNIQUES FOR DIGITAL X-RAY IMAGING HAVE BEEN UNDER INVESTIGATION FOR DECADES. SOME OF THE MOST PROMISING TEECHNIQUES INCORPORATE SOLID-STATE X-RAY DETECTORS, WHICH ARE ATTRACTIVE BECAUSE OF THEIR COMPACTNESS. HIGH-Z SEMICONDUCTOR X-RAY DETECTORS HAVE FURTHER ADVANTAGES DUE TO THEIR HIGH… more
Abstract:Positron Emission Tomography (PET) is an important fundamental tool for both clinical diagnosis and medical research. It is noninvasive medical imaging technique which provides an image of the distribution of a positron emitting radio pharmaceutical in the body. At the present time, the performance… more
Abstract:In neurosurgery operating microscopes are indispensable. Stereotaxic frames are invaluable tools as well because of the great precision with which they permit a neurosurgeon to place a probe with an accuracy on the order of 1mm. The goal is to combine the functionality of the operating microscope… more
Abstract:NEW TECHNIQUES HAVE BEEN DEVELOPED OVER THE PAST 36 MONTHS THAT OFFER SIGINIFICANT POTENTIAL FOR ON-BOARD MONITORING OF MECHANICAL SYSTEMS TO DETECT AND CLASSIFY INCIPENT FAILURES. MANY ARE BASED ON THE WAVELET TRANSFORM, AND ITS EXTENSION TO THE WAVE PACKETS TRANSFORM. ALL PROVIDE A MEANS TO… more
Abstract:Three new techniques have been developed over the past 36 months that offer significant potential for on-board monitoring of mechanical systems to detect and classify incipient failures. The first is the wavelet transform, and its extension to wave packets, as a means for isolating changes in signal… more
Abstract:The objective of this research is to determine the feasibility of using advanced Petri iiet technology to analyze the performance of large-scale sensor and C3 (i.e., C3I) systems. The US Navy is developing future C3I systems to support its mission and fundamental warfare tasks. The decision of which… more
Abstract:Using SAR/ISAR imagery to detect and classify small targets in cluttered environments for ASW applications requires careful examination of the full array of image processing, computer vision, and related methods in order to identify those that are well-matched to the problem and thus offer promise… more
Abstract:Computer-based instruction offers the opportunity to increase training efficiency by adapting training to the individual needs and characteristics of the operator, but insight is needed into how to make the best use of this potential. ALPHATECH proposes to design (In Phase I) and develop (in Phase… more
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