Results 191 to 200 of about 5,663,570 (216)
Differential expression of cytokines and vitamin D in benign and malignant thyroid diseases. [PDF]
Sci RepLi H, Jin X, Zhang M, Wang X, Wang H.
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Effect of vitamin D supplementation on glycemic control, insulin sensitivity, and pregnancy outcomes in gestational diabetes patients undergoing dietary therapy. [PDF]
J Health Popul NutrYu S, Yu X, Li F.
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Image Perspective TransformationsÃÂââÃÂìâÃÂ?Urban Scenes [PDF]
Optical Engineering, 1981 This paper discusses a technique for converting digitized oblique low-altitude aerial photography to gray level imagery as seen from other viewing perspectives. The technique makes use of one- and two-camera perspective transformations. Inputs to these transformations are camera model information and a stick figure representation of the scene.
Robert N. Devich, Frederick M. Weinhaus
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Atmospheric Optical PropagationÃÂââÃÂìâÃÂ?An Integrated Approach
Optical Engineering, 1982The task of characterizing optical wave propagation through the earth's atmosphere under low-visibility weather conditions is extremely difficult; it requires, in essence, solution of the general multiple-scattering problem. This paper describes results from an integrated approach to propagation through the turbid atmosphere in which experiments are ...
Jeffrey H. Shapiro +4 more
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Optical Engineering, 1984
We have previously reported on the conceptual design and predicted performance of a new type of dedicated astronomical telescope to be used for a deep photometric survey for galactic and extragalactic variability and polarization.' Data derived from this survey will be useful for a wide variety of astronomical investigations including the definition of
J. T. McGraw +4 more
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We have previously reported on the conceptual design and predicted performance of a new type of dedicated astronomical telescope to be used for a deep photometric survey for galactic and extragalactic variability and polarization.' Data derived from this survey will be useful for a wide variety of astronomical investigations including the definition of
J. T. McGraw +4 more
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Optical Engineering, 1982
Most of the laser speckle methods utilize subjective speckles in that speckles are recorded through a lens whose aperture determines the admitted spatial frequencies. Objective speckles are those intrinsically formed by the scattering wavelets. In this paper we propose the use of far-field objective speckles generated from a ground glass to measure ...
C. C. Kin, Fu-Pen Chiang
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Most of the laser speckle methods utilize subjective speckles in that speckles are recorded through a lens whose aperture determines the admitted spatial frequencies. Objective speckles are those intrinsically formed by the scattering wavelets. In this paper we propose the use of far-field objective speckles generated from a ground glass to measure ...
C. C. Kin, Fu-Pen Chiang
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Social and Philosophic Principles of Resolving the Ethnic and Interethnic Contradictions
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Boboyorov Bobomurod Normatovich
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Diode Laser Arrays With High Power In The 4 To 5 ÃÂÃÂÃÂõm Infrared Region
Optical Engineering, 1984We have fabricated monolithic four-element diode laser arrays of PbS09Se01, emitting 100 mW of cw power per array end at 4 A in the 4 to 5µm spectral region. Corresponding to an external quantum efficiency of 20%, these arrays demonstrate the feasibility of upscaling output power levels by the parallelization of stripe-geometry diode lasers on a single
K. J. Linden, R E. Reeder
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Design Of Null Lens Correctors For The Testing Of Astronomical NnfitÃÂââÃÂìÃÂÃÂC
Optical Engineering, 1988Some design examples are presented that illustrate the design of null correctors for the testing of strong aspherical surfaces such as those that are of interest in astronomical instrumentation. The design and analysis of an Offner corrector for an f/1 paraboloid is given.
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