نتایج جستجو برای: fiber dyes
تعداد نتایج: 149521 فیلتر نتایج به سال:
Background and Objectives: The development a low-cost and high efficiency water treatment technology to decolorize the organic dye effluents is desirable due to overwhelming discharge of organic synthetic dyes into the natural water cycle during the dying process. In this study, the decolorization of Acid Black 26, as the model organic contaminant, was investigated using immobilized nano-sized ...
Fabrication and characterization of U-shaped fiber optic pH probes utilizing evanescent field absorption spectroscopy and dye doped solgel immobilization technology are presented. The U-shaped probe is used to increase the evanescent field in the film and hence its interaction with the dyes present in the film. The influences of bending radius of the probe and the numerical aperture of the fibe...
The system described here can distinguish between single and agglutinated erythrocytes by use of a non-flow fiber optic fluorometer. The method is capable of detecting cell-surface antigens and antibodies to cell-surface antigens present in blood. Significant features include high-efficiency fluorescent dyes that intercalate into cell membranes, a stretching membrane for transport and mixing of...
Fluorescent procion dyes when iontophoresed into lens fibers through a glass capillary microelectrode appear, on gross observation, to be within a single fiber only. Fluorescent microscopy reveals, however, that the dye diffuses appreciably from one cell to another. The movement is primarily along a single column of fibers at low currents, but spreads to adjacent columns at higher currents. The...
Polymer optical fibers (POFs) doped with organic dyes can be used to make efficient lasers and amplifiers due to the high gains achievable in short distances. This paper analyzes the peculiarities of light amplification in POFs through some experimental data and a computational model capable of carrying out both power and spectral analyses. We investigate the emission spectral shifts and widths...
abstract: country’s fiber optic network, as one of the most important communication infrastructures, is of high importance; therefore, ensuring security of the network and its data is essential. no remarkable research has been done on assessing security of the country’s fiber optic network. besides, according to an official statistics released by ertebatat zirsakht company, unwanted disconnec...
Dyes are a type of pollutant that have been discharged into water streams by various industries and had harmful effects on the environment human health. Therefore, present work was directed to recycle acrylic fibers waste be used as an adsorbent exclude dyes such methylene blue (MB) Congo red (CR) from dyes-polluted wastewater. Acrylic converted membrane followed chemical grafting with p-phenyl...
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