1,370,038 research outputs found

    Le conte du Mantel, texte français des dernières années du XIIIe siècle

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    Wulff F.-A. Le conte du Mantel, texte français des dernières années du XIIIe siècle. In: Romania, tome 14 n°55-56, 1885. pp. 343-380

    Epistola Gamica Ad ... Dn. Gregorium Wulff/ Iurium Doctorem Amicum non e multis. Cum Virgine ... Sophia Elisabetha a Neckerin Auspicatissimas Nuptias celebraturum Benevoli Adfectus documento festinatissimo L. M. Q.

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    EPISTOLA GAMICA AD ... DN. GREGORIUM WULFF/ IURIUM DOCTOREM AMICUM NON E MULTIS. CUM VIRGINE ... SOPHIA ELISABETHA A NECKERIN AUSPICATISSIMAS NUPTIAS CELEBRATURUM BENEVOLI ADFECTUS DOCUMENTO FESTINATISSIMO L. M. Q. Epistola Gamica Ad ... Dn. Gregorium Wulff/ Iurium Doctorem Amicum non e multis. Cum Virgine ... Sophia Elisabetha a Neckerin Auspicatissimas Nuptias celebraturum Benevoli Adfectus documento festinatissimo L. M. Q. ([1]) Titelseite ([1]) Text ([1]

    Wulff-Based Approach to Modeling the Plasmonic Response of Single Crystal, Twinned, and Core–Shell Nanoparticles

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    The growing interest in plasmonic nanoparticles and their increasingly diverse applications is fuelled by the ability to tune properties via shape control, promoting intense experimental and theoretical research. Such shapes are dominated by geometries that can be described by the kinetic Wulff construction such as octahedra, thin triangular platelets, bipyramids, and decahedra, to name a few. Shape is critical in dictating the optical properties of these nanoparticles, in particular their localized surface plasmon resonance behavior, which can be modeled numerically. One challenge of the various available computational techniques is the representation of the nanoparticle shape. Specifically, in the discrete dipole approximation, a particle is represented by discretizing space via an array of uniformly distributed points-dipoles; this can be difficult to construct for complex shapes including those with multiple crystallographic facets, twins, and core–shell particles. Here, we describe a standalone user-friendly graphical user interface (GUI) that uses both kinetic and thermodynamic Wulff constructions to generate a dipole array for complex shapes, as well as the necessary input files for DDSCAT-based numerical approaches. Examples of the use of this GUI are described through three case studies spanning different shapes, compositions, and shell thicknesses. Key advances offered by this approach, in addition to simplicity, are the ability to create crystallographically correct structures and the addition of a conformal shell on complex shapes

    Wulff-Based Approach to Modeling the Plasmonic Response of Single Crystal, Twinned, and Core–Shell Nanoparticles

    No full text
    The growing interest in plasmonic nanoparticles and their increasingly diverse applications is fuelled by the ability to tune properties via shape control, promoting intense experimental and theoretical research. Such shapes are dominated by geometries that can be described by the kinetic Wulff construction such as octahedra, thin triangular platelets, bipyramids, and decahedra, to name a few. Shape is critical in dictating the optical properties of these nanoparticles, in particular their localized surface plasmon resonance behavior, which can be modeled numerically. One challenge of the various available computational techniques is the representation of the nanoparticle shape. Specifically, in the discrete dipole approximation, a particle is represented by discretizing space via an array of uniformly distributed points-dipoles; this can be difficult to construct for complex shapes including those with multiple crystallographic facets, twins, and core–shell particles. Here, we describe a standalone user-friendly graphical user interface (GUI) that uses both kinetic and thermodynamic Wulff constructions to generate a dipole array for complex shapes, as well as the necessary input files for DDSCAT-based numerical approaches. Examples of the use of this GUI are described through three case studies spanning different shapes, compositions, and shell thicknesses. Key advances offered by this approach, in addition to simplicity, are the ability to create crystallographically correct structures and the addition of a conformal shell on complex shapes

    Ann Wulff: Photomedia

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    6 April 1988. Side A: Presentation (continued), discussion. -- Side B: Presentation

    A new characterization of the Wulff Shape

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    We prove a new charcaterization of the Wulff shape in termes of higher order anisotropic mean curvatures. Namely, if a closed, connnected and oriented hypersurface of the Euclidean space has a constant higher order anisotropic mean curvature H F r and another one H F s almost constant, then it is the Wullf shape, up to translations and homotheties.</div

    Wulff House

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    The Wulff House, built by German immigrant Anton Wulff c. 1870, stands at the entrance to King William Street. The three-story, Italianate style house features random coursed ashlar limestone walls, a distinctive tower room, and a raised basement. Wulff, who came to Texas in 1848 and settled in San Antonio in the 1850�s, became a prominent local merchant, as well as an alderman, and the city�s first parks commissioner

    Topological aspect of Wulff shapes

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    In this paper we investigate Wulff shapes in Rⁿ⁺¹ (n ≥ 0) from the topological viewpoint. A topological characterization of the limit of Wulff shapes and the dual Wulff shape of the given Wulff shape are provided. Moreover, we show that the given Wulff shape is never a polytope if its support function is of class C¹. Several characterizations of the given Wulff shape from the viewpoint of pedals are also provided. One of such characterizations may be regarded as a bridge between the mathematical aspect of crystals at equilibrium and the mathematical aspect of perspective projections

    F. R. Wulff Motor Company, north side of the public square, Brady, Texas

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    Photograph shows front of the building with sign reading: "F. R. Wulff / Dodge Brothers Motor Cars." Located on W. Main Street at N. Church. In foreground is truck pulling a trailer
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