Spherical Reflection
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Dynamic Arrays Based on Magnetically Controlled Particles: Synthesis and Application
Growth mechanisms of dynamic granular arrays based on magnetically controlled particles are presented. Method of the external rotating magnetic field (ERMF), based on a dipole interaction of magnetic spherical Fe3O4 particles in highly ordered volume arrays is proposed and a design for its practical implementation is developed. The magnetic assembly can resu
Mat. Res.. Publicado em: 19/08/2019
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2. Simetria por reflexão esférica e spanning drops em uma cunha / Simetria por reflexão esférica e spanning drops em uma cunha
In this work we study the problem of determining the embedded ring-type surfaces S of constant mean curvature, with boundary beta1 and beta2, each one contained in planes PI1 and PI2 of a wedge with opening angle alfa. We require that the contacts betak = S(intersecção)PIk occur at constant angles gamak, k = 1, 2, respectively. We use the Spherical Reflect
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/03/2011
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3. Estudo estrutural de nanossistemas semicondudores e semicondutores implantados por difração de raios-X de n-feixes / Structural study of semiconductors nanosystems and implanted semiconductors by means of n-beams X-ray diffraction
In this paper, X-ray multiple diffraction (MD) associated with the advantages of synchrotron radiation appears as a high-resolution microprobe and it is used to obtain relevant contributions to the study of structural properties of semiconductor materials, as they present themselves nanosystems epitaxial or implanted with ions. The study and detection of neg
Publicado em: 2010
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4. On the avian Merkel cells.
Small Merkel cells are described in the hard palate epithelium of the chick. Further, spherical juxtaepithelial Merkel cells and more deeply situated apparently degenerating Merkel corpuscles are also described. The observations are interpreted as a reflection of a sequence of growth and decay of Merkel corpuscles, and seem to support the hypothesis of an ep
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5. Visualization of Regulated Exocytosis with a Granule-Membrane Probe Using Total Internal Reflection MicroscopyV⃞
Secretory granules labeled with Vamp-green fluorescent protein (GFP) showed distinct signatures upon exocytosis when viewed by total internal reflection fluorescence microscopy. In ∼90% of fusion events, we observed a large increase in fluorescence intensity coupled with a transition from a small punctate appearance to a larger, spreading cloud with free d
The American Society for Cell Biology.
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6. Mapping fluorophore distributions in three dimensions by quantitative multiple angle-total internal reflection fluorescence microscopy.
The decay of evanescent field intensity beyond a dielectric interface depends upon beam incident angle, enabling the 3-d distribution of fluorophores to be deduced from total internal reflection fluorescence microscopy (TIRFM) images obtained at multiple incident angles. Instrumentation was constructed for computer-automated multiple angle-TIRFM (MA-TIRFM) u
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7. The role of hydrodynamic interaction in the locomotion of microorganisms.
A general Boundary Element Method is presented and benchmarked with existing Slender Body Theory results and reflection solutions for the motion of spheres and slender bodies near plane boundaries. This method is used to model the swimming of a microorganism with a spherical cell body, propelled by a single rotating flagellum. The swimming of such an organis
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8. Atomic Force Microscopy Investigation of Human Immunodeficiency Virus (HIV) and HIV-Infected Lymphocytes
Isolated human immunodeficiency virus (HIV) and HIV-infected human lymphocytes in culture have been imaged for the first time by atomic force microscopy (AFM). Purified virus particles spread on glass substrates are roughly spherical, reasonably uniform, though pleomorphic in appearance, and have diameters of about 120 nm. Similar particles are also seen on
American Society for Microbiology.