Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 38 for “"rayon"”.
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Nitrations of viscose rayon
… continuous type of acidic nitration of viscose rayon for use in powder bags or guncotton would be highly impractical.
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Sulfur forms in crude viscose rayon
… of analysis of the total sulfur in crude viscose rayon was developed. This consisted of extraction of the sulfur with sodium hydroxide solution, oxidation to sulfates with bromine, and precipitation as barium sulfate. This method is accurate to one percent. A more rapid method for the analysis of …
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A study of the crease-resistance of viscose rayon
… The improvement of the crease-resistance of rayon and other fibers has been sought in various after-treatment processes, in which substances are either deposited within the fiber, or react with it. There are numerous patents (22) for such methods of imparting crease-resistance. It would be …
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The dynamics of production and distribution in the rayon and acetate sector of the textile industry
Thesis (M.S.)--Massachusetts Institute of Technology, School of Industrial Management, 1958.
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Engineering problems confronting the viscose rayon industry as shown in the development of a subdued luster viscose yarn
Electronic Thesis or Dissertation
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Enabling the Rust Compiler to Reason about Fork/Join Parallelism via Tapir
… parallelism solutions in Rust such as Rayon, as well as to C programs parallelized with OpenCilk, based on performance and ergonomics. I find that Rust + Cilk exhibits marginally worse performance than Rayon, although I expect these differences are possible to bridge with further work. …
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The effects of common household cleaning agents and aging on the removal of quantitatively applied food stains from rayon, nylon, and olefin pile upholstery fabrics
… were to quantitatively apply food stains to a rayon, a nylon, and an olefin pile upholstery fabric, and to determine the effects of aging times and cleaning agents on their removal. Another objective was to correlate the instrumental color change measurements with ratings obtained from a …
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Pengaruh keselamatan ketenagalistrikan (K2) serta keselamatan dan kesehatan kerja (K3) dalam upaya untuk peningkatan produktifitas kerja karyawan: Studi pada PT. PLN (Persero) Area Malang Rayon Ngantang
… keselamatan kesehatan kerja yang ada di PT. PLN Rayon Ngantang. Hasil yang diperoleh dari penelitian ini secara simultan menyatakan bahwa dari variabel keselamatan ketenagalistrikan dan keselamatan kesehatan kerja berpengaruh signifikan terhadap variabel produktivitas kerja dengan nilai …
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Charakterisierung und Kausalitätsanalyse von Atemwegserkrankungen bei Mitarbeitern einer Viskosespinnerei
Several workers of a rayon factory suffered from airway diseases which were possibly related to occupational causes. This study compares the medical reports concerning these cases and balances private and occupational risks. It shows that in this factory adverse working conditions might be the …
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Étude de la croissance d'une bulle de vapeur au sein d'un liquide surchauffé soumis à une pression variable
… Elle permet de dériver une relation implicite du rayon de la bulle en croissance dans un liquide surchauffé soumis à une pression variable ou constante à l'infini. Afin d'évaluer de façon explicite les valeurs du rayon de la bulle en croissance à partir de cette relation implicite, une méthode de …
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Determination of the relation between the particle size of viscose and the physical properties of the rayon produced: development of a practical method for measuring the change of particle size
During the ripening of viscose, changes take place in the constitution of the colloidal solution which can be observed by means of the change in the intensity of the Tyndall light scattered by the solution. The intensity of the scattered light decreases rapidly at first, but more slowly with time, …
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Optimisation de l'harmonie des sons d'une cymbale faite de deux matériaux
… quand le disque central est en aluminium et a un rayon égal à 54% de celui de la cymbale."--Sommaire.
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Fabrication and Evaluation of Specialty Nonwoven Materials
… nonwoven. Activated carbon fiber (ACF) made from rayon fabrics showed slightly higher surface area than cotton ACF. The increase of carbonization and activation temperature leads to produce high adsorptive capacity and microporosity. Longer heating time also contributed to high surface area, but …
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