Results 21 to 30 of about 775,307 (358)
Weak-Lensing Ellipticities in a Strong-Lensing Regime [PDF]
The Astrophysical Journal, 2008 It is now routine to measure the weak gravitational lensing shear signal from the mean ellipticity of distant galaxies. However, conversion between ellipticity and shear assumes local linearity of the lensing potential (ie that the spatial derivatives of the shear are small), and this condition is not satisfied in some of the most interesting regions ...
Massey, R., Goldberg, D.M.
openaire +7 more sources
The Journal of Engineering, 2019 There exists few reports in the literature aimed at estimating depth from the spectrally-varying-amount-of-defocus contained in a single image generally captured by a commercial colour camera.
Wei Jiang, Dingrong Yi, Linghua Kong
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On the Nature and Location of the Microlenses [PDF]
, 1999 This paper uses the caustic crossing events in the microlens data sets to explore the nature and location of the lenses. We conclude that the large majority of lenses, whether they are luminous or dark, are likely to be binaries.
Afonso C. +17 more
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Weak lensing by voids in weak lensing maps [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2018 ABSTRACT Cosmic voids are an important probe of large-scale structure that can constrain cosmological parameters and test cosmological models. We present a new paradigm for void studies: void detection in weak lensing convergence maps.
Christopher T Davies +2 more
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Photoaligning and Photopatterning: New LC Technology
Crystals, 2020 We demonstrate a physical model of photoalignment and photopatterning based on rotational diffusion in solid azo-dye nanolayers. We also highlight the new applications of photoalignment and photopatterning in display and photonics such as: (i) liquid ...
Vladimir Chigrinov +2 more
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Effect of plant-based feed ingredients on osmoregulation in the Atlantic salmon lens [PDF]
, 2010 Lenses of adult Atlantic salmon fed with a plant oil and plant protein-based diet (plant diet) were compared to lenses of fish fed a diet based on traditional marine ingredients (marine diet) with respect to biochemical composition and functionality ex ...
Baslow +52 more
core +1 more source
Strain‐Multiplex Metalens Array for Tunable Focusing and Imaging
Advanced Science, 2021 Metalenses on a flexible template are engineered metal‐dielectric interfaces that improve conventional imaging system and offer dynamic focusing and zooming capabilities by controlling the focal length and bandwidth through a mechanical or external ...
Rajib Ahmed, Haider Butt
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Insight into small eyes: a practical description from phenotypes presentations to the management [PDF]
International Journal of OphthalmologyThis narrative review aimed to have an algorithmic approach to microphthalmos by a systematic search. The definition can be related to a number of special phenotypes.
Sana Niazi +4 more
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A 3D controllable diffraction‐limited spot array generated by means of a spaced‐dipole array
IET Optoelectronics, 2022 The creation of an array of three‐dimensional (3D) multifocal spots in the focal region has attracted interest due to potential applications in parallel or simultaneous process areas.
Yanzhong Yu +5 more
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