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1985 1
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1992 1
1993 1
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2001 1
2003 1
2004 1
2006 2
2007 2
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2010 1
2011 1
2012 2
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40 results

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Page 1
Analytical Lah-Laguerre optical formalism for perturbative chromatic dispersion.
Popmintchev D, Wang S, Zhang X, Stoev V, Popmintchev T. Popmintchev D, et al. Opt Express. 2022 Oct 24;30(22):40779-40808. doi: 10.1364/OE.457139. Opt Express. 2022. PMID: 36299007 Free article.
We present a generalized perturbative analytical formalism for evaluation and optimization of the chromatic dispersion of complex ultrafast optical systems. Notably, we identify polynomial and recursive relations associated with the chromatic dispersion order …
We present a generalized perturbative analytical formalism for evaluation and optimization of the chromatic dispersion of complex ult …
Application of maple on computing strong fuzzy chromatic polynomial of fuzzy graphs.
Ashebo MA, Rathour L, Repalle VNS. Ashebo MA, et al. BMC Res Notes. 2022 Nov 8;15(1):344. doi: 10.1186/s13104-022-06242-6. BMC Res Notes. 2022. PMID: 36348494 Free PMC article.
OBJECTIVE: In the field of graph theory, maple is a technical computation form that is used for solving problems. In this article, we apply maple to find the strong fuzzy chromatic polynomial of fuzzy graphs and related. Moreover, we apply maple to obtain strong fuz …
OBJECTIVE: In the field of graph theory, maple is a technical computation form that is used for solving problems. In this article, we apply …
In vivo chromatic aberration in eyes implanted with intraocular lenses.
Pérez-Merino P, Dorronsoro C, Llorente L, Durán S, Jiménez-Alfaro I, Marcos S. Pérez-Merino P, et al. Invest Ophthalmol Vis Sci. 2013 Apr 12;54(4):2654-61. doi: 10.1167/iovs.13-11912. Invest Ophthalmol Vis Sci. 2013. PMID: 23493299
The monochromatic wave aberrations were described using a fifth-order Zernike polynomial expansion. The chromatic difference of focus was estimated as the difference between the equivalent spherical errors corresponding to each wavelength. ...Chromatic differ …
The monochromatic wave aberrations were described using a fifth-order Zernike polynomial expansion. The chromatic difference o …
Measurement of Longitudinal Chromatic Aberration in the Last Crystalline Lens Surface Using Hartmann Test and Purkinje Images.
Calderon-Uribe U, Hernandez-Gomez G, Gomez-Vieyra A. Calderon-Uribe U, et al. Sensors (Basel). 2022 Mar 30;22(7):2653. doi: 10.3390/s22072653. Sensors (Basel). 2022. PMID: 35408266 Free PMC article.
Research has shown that longitudinal chromatic aberration (LCA) of the human eye is generated across all of the eye's optical surfaces. ...This investigation presents the study of an objective technique that allows the measurement of longitudinal chromatic aberratio …
Research has shown that longitudinal chromatic aberration (LCA) of the human eye is generated across all of the eye's optical surface …
Hypergraph coloring complexes.
Breuer F, Dall A, Kubitzke M. Breuer F, et al. Discrete Math. 2012 Aug 28;312(16):2407-2420. doi: 10.1016/j.disc.2012.04.027. Discrete Math. 2012. PMID: 23483700 Free PMC article.
Nevertheless, we are able to provide bounds for the [Formula: see text]- and [Formula: see text]-vectors of those complexes which yield new bounds on chromatic polynomials of hypergraphs. Moreover, though it is proven that the coloring complex of a hypergraph has a …
Nevertheless, we are able to provide bounds for the [Formula: see text]- and [Formula: see text]-vectors of those complexes which yield new …
Application of Tolerance Graphs to Combat COVID-19 Pandemic.
Crnković D, Švob A. Crnković D, et al. SN Comput Sci. 2021;2(2):83. doi: 10.1007/s42979-021-00462-6. Epub 2021 Feb 8. SN Comput Sci. 2021. PMID: 33585825 Free PMC article.
These applications include finding cliques of a certain size, and calculating the chromatic number of a graph, the problems that are in general NP-complete but for tolerance graphs can be solved in polynomial time....
These applications include finding cliques of a certain size, and calculating the chromatic number of a graph, the problems that are …
A new approach to the study of ocular chromatic aberrations.
Marcos S, Burns SA, Moreno-Barriusop E, Navarro R. Marcos S, et al. Vision Res. 1999 Oct;39(26):4309-23. doi: 10.1016/s0042-6989(99)00145-5. Vision Res. 1999. PMID: 10789425 Free article.
In this technique, the angular deviation of light rays entering the pupil at different locations is measured with respect to a target viewed through a centered pupil. Fits of the data at each wavelength to Zernike polynomials were used to estimate the change of defocus wit …
In this technique, the angular deviation of light rays entering the pupil at different locations is measured with respect to a target viewed …
Dynamic prediction of optical and chromatic performances for a light-emitting diode array based on a thermal-electrical-spectral model.
Fan J, Chen W, Yuan W, Fan X, Zhang G. Fan J, et al. Opt Express. 2020 Apr 27;28(9):13921-13937. doi: 10.1364/OE.387660. Opt Express. 2020. PMID: 32403858 Free article.
Some validation case studies show that the prediction accuracy of the proposed TES model, which is expressed as a quadratic polynomial function of current and case temperature, can be achieved higher than 95%. Therefore, it can be concluded that this TES model offers a con …
Some validation case studies show that the prediction accuracy of the proposed TES model, which is expressed as a quadratic polynomial …
Characterization of the displacement response in chromatic confocal microscopy with a hybrid radial basis function network.
Lu W, Chen C, Wang J, Leach R, Zhang C, Liu X, Lei Z, Yang W, Jiang XJ. Lu W, et al. Opt Express. 2019 Aug 5;27(16):22737-22752. doi: 10.1364/OE.27.022737. Opt Express. 2019. PMID: 31510560 Free article.
Characterization of the displacement response is critical for accurate chromatic confocal measurement. Current characterization methods usually provide a linear or polynomial relationship between the extracted peak wavelengths of the spectral signal and displacement …
Characterization of the displacement response is critical for accurate chromatic confocal measurement. Current characterization metho …
A survey of transforms of the CIE 1931 chromaticity diagram with some new non-linear transforms and histological illustrations of their utility.
Galbraith W, Marshall PN. Galbraith W, et al. Acta Histochem. 1985;77(1):79-100. doi: 10.1016/S0065-1281(85)80020-9. Acta Histochem. 1985. PMID: 3933258 Review.
Both linear and non-linear transforms are considered, although the latter are given special attention. The concept of a uniform chromaticity space (UCS) is discussed, and the published transforms are assessed for uniformity using the colour matching data. 2 series of new, …
Both linear and non-linear transforms are considered, although the latter are given special attention. The concept of a uniform chromatic …
40 results