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The increasing awareness of toxicity of synthetic dyes has considerably raised the demand for natural dyes. Retaining color fastness and strength of natural dyes on fabric is the main limitation in textile dyeing with natural dyes.
Scolastica Manyim +3 more
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Fast Learning of Fast Transforms, with Guarantees
Approximating a matrix by a product of few sparse factors whose supports possess the butterfly structure, which is common to many fast transforms, is key to learn fast transforms and speedup algorithms for inverse problems. We introduce a hierarchical approach, that recursively approximates the considered matrix into two factors.
Le, Quoc-Tung +3 more
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Synthesis and application of 2-aminothiadiazole disperse dyes for nylon fabrics [PDF]
Some disperse dyes based on 2-amino-5-mercapto-1,3,4-thiadiazole have been prepared by coupling with various N-arylacrylamides. The dyes were characterized by IR spectral studies and elemental analysis. All the dyes were applied as disperse dyes on nylon
VITHAL SOMA PATEL, HARI RAGHAV MARADIYA
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Dyeing properties of different fabric species were investigated using leaf extract of Juglans regia L. For this purpose, the cotton and wool fabrics were dyed using brown napthaquinon colorant extracted from walnut leaves by pre-mordanting, meta ...
Adem ÖNAL +4 more
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New class of azo reactive disperse dyes based on quinazolinone moieties: synthesis, characterization, and dyeing performance on blend fabrics with ultraviolet protection [PDF]
This study describes an efficient and simple technique for the synthesis of four new quinazolinone reactive disperse dyes, which include 1,3,5-trichlorotriazine (cyanuric chloride) group from quinazolinone and various substituted primary aromatic amines.
Ahmed Noser +3 more
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Dyeing of hydrophobic fabrics with disperse dyes [PDF]
A series of disperse dyes has been synthesized by diazotisation of 2,6-dibromo-4-nitroaniline and coupled with various N-arylmaleimides. The dyes were characterized by IR spectral studies, visible absorption spectroscopy and elemental analysis ...
Maradiya Hari Raghav, Patel Vithal Soma
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The extraction of natural dye using an aqueous method is a concept of green chemistry to avoid environmental pollution and toxicity. The present study was performed to improve the color strength and fastness properties of the fabrics by using natural dye
Meghna Diarsa, Akshaya Gupte
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Fasting and surgery timing (FaST) audit [PDF]
International guidance advocates the avoidance of prolonged preoperative fasting due to its negative impact on perioperative hydration. This study aimed to assess the adherence to these guidelines for fasting in patients undergoing elective and emergency surgery in the East Midlands region of the UK.This prospective audit was performed over a two-month
Ahmed M. El-Sharkawy +56 more
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There has been a growing interest in natural dyes and consciousness about ill effects of ultraviolet rays on the human skin. This paper discusses dye extraction from the fruit shell waste of Sterculia foetida and its application on linen fabric for ...
M. D. Teli, Pintu Pandit
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We are interested in the following question: given n numbers x[subscript 1], ..., x[subscript n], what sorts of approximation of average x[subscript ave] = 1overn (x[subscript 1] + ... + x[subscript n]) can be achieved by knowing only r of these n numbers. Indeed the answer depends on the variation in these n numbers.
Bodas, Shreeshankar, Shah, Devavrat
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