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A high resolution thermometer was developed using dilute aloy of Mn in Pd as the magnetic sensing element instead of the traditional paramagnetic salt.
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Recent advancements in the ability of radar/sonar systems to launch and analyzesignals of very short time duration have caused many to re-examine the so-called wideband ambiguity function. Much of this work has been at a mathemati...
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Recent advancements in the ability of radar/sonar systems to launch and analyzesignals of very short time duration have caused many to re-examine the so-called wideband ambiguity function. Much of this work has been at a mathematical level that has placed it out of reach to many radar and sonar engineers. Some of the work has been incomplete--occasionally even incorrect. Our present pedagogical discussion uses the standard time-frequency motivation for time-scale distributions. We compare and contrast the usual narrowband techniques with the wideband approach and explain how high-resolution downrange imaging requires an understanding of the latter. Ambiguity function, Wideband, Wavelet.
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DTI has devised a display technique that can increase the usable resolution of a microdisplay four to nine times without manufacturing additional pixels. The technique has been shown to produce usable, addressable 'virtual-pixels'...
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DTI has devised a display technique that can increase the usable resolution of a microdisplay four to nine times without manufacturing additional pixels. The technique has been shown to produce usable, addressable 'virtual-pixels' in excess of the resolution present on the supporting microdisplay. The Ultra High Definition Projector has four major subsystems: (1) the light engine focuses light into a spot which is made to 'jump' between nine positions in a 3x3 array every 1/540th second, forming nine flashing light spots. Light from the spots is directed to a fly's eye lens array. Each lenslet of the fly's eye array forms a microscopic image of the nine spots; (2) The optical system splits light from the flashing spot images in front of each lenslet into three color components, red, green, and blue, and sends each component to one of three Texas Instruments DMD microdisplays. Relay lenses re- image a set of nine flashing spots into each pixel of each DMD. A projection lens projects the image of the spots on the DMD onto a screen; (3)The three Texas Instruments DMDs form images by means of micromechanical mirrors that direct light toward or away from the projection lens; and (4) The interface feeds high resolution images from a computer or camera into a buffer where sub fields are read out in sequence as the light spots flash. The movement of the light spots is synchronized with the operation of the DMD, creating images made up of the light spots.
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Several nonlinear optical processes concurrently occur in single micrometer-sizeddroplets that are irradiated by the second-harmonic output of a single-mode Q-switched Nd:YAG laser. We review the following observations of stimulat...
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Several nonlinear optical processes concurrently occur in single micrometer-sizeddroplets that are irradiated by the second-harmonic output of a single-mode Q-switched Nd:YAG laser. We review the following observations of stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) in droplets: (1) the image of the droplets that are emitting SBS and SRS: (2) the long delay and decay time of the SRS pulse: (3) the correlated dated temporal profiles of the SBS and SRS pulses: (4) the high-resolution spectra of the SBS: (5) the frequency splitting of a degenerate spherical normal mode in the SRS spectra: and (6) the fine structures in the angular distribution of the SRS.
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This paper presents several experimental results of using the techniques of set and function mathematical morphology (MM) for feature extraction from real and synthetic range imagery. More specifically, we consider the problem of ...
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This paper presents several experimental results of using the techniques of set and function mathematical morphology (MM) for feature extraction from real and synthetic range imagery. More specifically, we consider the problem of extracting silhouetted appendages from real imagery with coarse range resolution and that of extracting appendages and corners from synthetic imagery with high range resolution.
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This slide presentation shows the basic parameters of the x-ray optics, the housing,a graph of the effective area vs energy, another graph showing the angular off-set vs HEW, and a series of graphs showing the detector offsets and tilts.
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Renaissance Telescope for high resolution and visual astronomy has five 82-degree Field Tele-Vue Nagler Eyepieces, some of the accessories that contribute to high image quality. Telescopes and eyepieces are representative of a fam...
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Renaissance Telescope for high resolution and visual astronomy has five 82-degree Field Tele-Vue Nagler Eyepieces, some of the accessories that contribute to high image quality. Telescopes and eyepieces are representative of a family of optical equipment manufactured by Tele-Vue Optics, Inc.
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