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CEVİZ, NURAY

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CEVİZ

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NURAY

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2016 - 20173
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End date: 2019 × Start date: 2016 ×

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Now showing 1 - 3 of 3
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    Thermal Comfort of Woolen Fabrics Depending on Physical Properties
    (TAYLOR & FRANCIS INC, 2016) ATMACA, MUSTAFA; Dal, Vedat; Atmaca, Mustafa; Yildiz, Zehra; Ceviz, Nuray Oz; Hes, Lubos
    In this study, thermal comfort properties of woolen fabrics depending on the physical properties have been investigated. Thermal and water vapor resistance of fabrics have been measured by the PERMETEST instrument and air permeability has been investigated in a wind tunnel. The air permeability depends on the shape and value of the pores and inter thread channels, which are dependent on the structural parameters of the fabric. Theoretical model has been used in order to determine the porosity values. Experimental data and regression statistics proved that porosity and other fabric parameters have a very strong influence on thermal comfort property.
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    Ön Lisans Öğrencilerinin Girişimcilik Eğilimlerinin Bazı Değişkenlere Göre Araştırılması
    (2017-10-12) CEVİZ, NURAY; POLAT, ZÜHAL; YAYLA, AYŞE; SARIKAŞ, ALİ; TEKTAŞ N., TEKTAŞ M., CEVİZ N., POLAT Z., YAYLA A., SARIKAŞ A.
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    Analyzing the effects of special washing processes on characteristics of sewing threads
    (TAYLOR & FRANCIS LTD, 2017) CEVİZ, NURAY; Akcagun, Engin; Ceviz, Nuray Oz; Yilmaz, Abdurrahim; Mazari, Adnan
    In recent years, wet (washing, bleaching, etc.) and dry (abrasive, laser shaping, rodeo, etc.) operations applied on fashion denim products have become an important factor to increase the added value. However, these wet and dry processes applied to the denim products may have adverse effects on the strength of the fabric and other supplementary materials of denim products. For example, thread breakages affect the repair ratios and quality of products, which causes time and profitability losses in companies. The main objective of this study is to analyse how the types of washing affect the strength of the sewing threads that are commonly used in the production of denim trousers. In this study, 100% cotton denim fabric with a weight of 11.5 ounces and two different sewing threads were used. The fabrics are sewn as trouser legs with chain and lock stitch. Five different washes were applied to the trouser legs. The obtained data were evaluated in the R statistical program. As a result of the analyses made it is proven that the washing techniques used have an effect on the sewing threads' tensile strength and elongation at break. The tensile strengths of lock stitch and chain stitch decrease averagely 35% and elongation at break of lock stitch decreases %22 and chain stitch decreases 29.8%.