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Design of viscosity-matched optical fibers
IEEE Photonics Technology Letters, 1992An optical fiber with a homogeneously viscous cross section can be designed for an arbitrary index profile by utilizing two kinds of dopant which have different effects on host material viscosity. Examples of designs are shown for silica-based fibers when GeO/sub 2/ and F are used as the dopants. >
M. Tateda +3 more
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Viscosity of curved fibers in suspension
Journal of Non-Newtonian Fluid Mechanics, 2002In this paper, the relationship between fiber shape and relative viscosity of a fiber suspension is explored. A numerical simulation has been used to model non-Brownian curved rigid fibers in suspension under the influence of Newtonian shear flow. Curvature in the simulated fibers was taken to represent general deformities of real fibers in suspension.
Joung, C. G., Phan-Thien, N., Fan, X. J.
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Tuning hardness of swollen viscose fibers
Bioinspired, Biomimetic and Nanobiomaterials, 2014Viscose fibers are man-made, regenerated cellulose fibers. They offer versatile uses ranging from hygiene articles to textiles and medical applications. The great advantage over natural pulp and cotton fibers are the possibilities to design the fibers’ cross-sections and modify the material by directly mixing additives to the viscose dope.
Christian Ganser +5 more
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Viscosity as Related to Dietary Fiber: A Review
Critical Reviews in Food Science and Nutrition, 2006Viscosity is a physicochemical property associated with dietary fibers, particularly soluble dietary fibers. Viscous dietary fibers thicken when mixed with fluids and include polysaccharides such as gums, pectins, psyllium, and beta-glucans. Although insoluble fiber particles may affect viscosity measurement, viscosity is not an issue regards insoluble
Cheryl L, Dikeman, George C, Fahey
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Non-newtonian viscosity of fiber suspensions
Mechanics of Composite Materials, 1991It has been established that the introduction of fibers not only increases the viscosity of the matrix (a Newtonian liquid), but also leads to dependence of the viscosity on the shearing stress a viscosity anomaly [1-3]. At certain concentrations of monodisperse fibers and with certain viscosities of the matrix, a viscosity "superanomaly" has appeared,
V. P. Kovtun, L. A. Faitel'son
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The viscosity of fiber suspensions at low fiber volume fractions
Polymer Engineering & Science, 1981AbstractThe viscosities of suspensions of glass fibers in an aqueous solution of sucrose have been studied by use of a capillary viscometer. In the aligned condition in the capillary, the viscosity depends little on shear rate within the range studied or on fiber length, but increases with increasing volume fraction of the fibers.
J. N. Miles, N. K. Murty, G. F. Modlen
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Viscosity-matched single-mode fibers
1999 IEEE LEOS Annual Meeting Conference Proceedings. LEOS'99. 12th Annual Meeting. IEEE Lasers and Electro-Optics Society 1999 Annual Meeting (Cat. No.99CH37009), 2003We reviewed the viscosity characteristics and scattering characteristics of silica glasses. We also reviewed the viscosity-matching technique. This technique is very promising for realizing low-loss fiber where the difference between core and cladding viscosities is relatively large.
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Preparation and characterization of cyclotriphosphazenekeratin/viscose fibers
Fibers and Polymers, 2015The aim of this study is to develop a flame-retardant viscose fiber using the phosphazene derivative of a natural polymer. Hexachlorocyclotriphosphazene (HCCTP) and keratin were used as the raw materials to synthesize cyclotriphosphazenekeratin (CCTPK).
Zhao Zhou +3 more
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Reaction of Fire Retardants with Viscose Fiber
Fibre Chemistry, 2014IR spectroscopy, the calculated sorption coefficient for the reaction of viscose fiber with fire retardant, and the determined oxygen index of the modified fibers that characterized the flammability of the material were used to study the reaction of the fiber with dimethylmethylphosphonate derivatives.
E. V. Bychkova, L. G. Panova
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Viscosity measurement using fiber bend loss sensor
2012 International Symposium on Optomechatronic Technologies (ISOT 2012), 2012A fluid viscosity sensor using bend loss theory is presented. The sensing principle makes use of the damping characteristic of a vibrating optical fiber probe with fix-free end configuration. By measuring the frequency response of the fiber probe, the viscosity can be determined from the displacement of the fiber. The physical and mathematical model of
Alexander I. Fedorchenko +3 more
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