The effect of yarn hairiness on air drag in ring spinning
, 2006 Air drag on yarn and package surfaces affects yarn tension, which in turn affects energy consumption and ends-down in ring spinning. This study investigated the effects of yarn hairiness on air drag in ring spinning.
Fraser, W. B. +9 more
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Multiple-Parameter Hamiltonian Approach for Higher Accurate Approximations of a Nonlinear Oscillator with Discontinuity [PDF]
, 2011 We applied a new approach to obtain natural frequency of the nonlinear oscillator with discontinuity. He's Hamiltonian approach is modified for nonlinear oscillator with discontinuity for which the elastic force term is proportional to sgn(u).
Asmat Ara +2 more
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Nonlinear Response of Strong Nonlinear System Arisen in Polymer Cushion [PDF]
, 2013 A dynamic model is proposed for a polymer foam-based nonlinear cushioning system. An accurate analytical solution for the nonlinear free vibration of the system is derived by applying He's variational iteration method, and conditions for resonance are ...
Huan-xin Jiang +3 more
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Yarn properties developments with diagonally slotted roller on ring spinning machine [PDF]
, 2014 To develop new ring spinning process, the diagonally slotted rollers (DSR) of various angles (15°, 30° and 45°) have been designed, manufactured and then fitted below and parallel to the top front draft rollers of a ring spinning frame.
Alamdar-Yazdi, Aliasghar +2 more
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Application of ANOVA and AHP in Assessing the Quality of Roving Cotton-Polyester Siro Yarn [PDF]
Siro spinning, an evolution of ring spinning, optimizes parameters, such as roving strand distance and twist multiplier, thereby enhancing yarn quality according to numerous studies. Experts have differing opinions on the benefits of roving distances for
Amit Chakrabortty +3 more
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Análisis de resistencia a la tracción de hilos retorcidos 100% algodón en relación a su título, torsiones y doblados [PDF]
, 2021 Analizar la resistencia a la tracción de hilos retorcidos 100% algodón en relación al título, torsiones y doblados.En esta investigación se presenta el análisis de resistencia a la tracción de hilos de algodón 100% en relación con su título, torsiones y ...
Quitama Pastaz, Alejandro Bladimir
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, 2018 katedra: KTM; rozsah: 84Cílem této práce bylo vytvořit přehled různých způsobů dopřádání přízí. Popsat různé druhy konstrukcí přízí a definovat základní geometrické parametry přízí (průměr, jemnost, počet zákrutů a úhel stoupání šroubovice zákrutu).
Otmarová, Hana
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Properties of knitted fabric made from modified ring-spun yarn [PDF]
, 2015 A modified ring spinning system, wherein a kind of airflow twisting device is equipped for improving the twist propagation process of ring spinning system, has been used to spun three different yarns, namely 29.2tex (Ne20), 14.6tex (Ne40), and 9.7tex ...
Liu, Xinjin, Su, Xuzhong
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Livestock and resource management policy: Issues and priorities for research. Proceedings of the research planning workshop [PDF]
, 2010 This workshop was convened to help ILCA develop priorities and plan for research over the five year period, 1994-1998. The purpose of the workshop was to identify issues and priorities for research and training in the general areas of livestock and ...
Ehui, Simeon K., Lipner, M.E.
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Comportement et propriétés des fibres de polylactide (PLA) pendant le traitement et l’utilisation [PDF]
, 2010 Durante los últimos años los investigadores involucrados en el proyecto “Microestructura, caracterización, propiedades y aplicaciones de las fibras de polilactida” subvencionado por el Ministerio de Ciencia e Innovación (MAT2007-66569-C02) han estudiado ...
Cayuela Marín, Diana +1 more
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