Thesis (Ph.D.)--University of Leeds, 1922. / Holograph. Caption title. Includes photocopies of the report of the Royal Commission to Investigate the Possibilities of Musk-ox Industries in the Arctic and Sub-arctic regions of Canada, and a letter from W.T. Hornaday, Curator, New York Zoological Society addressed to the Commission concerning the viability of domestic music ox herds. Contents: v.1. Thesis, Ovibos fibre -- v.2 Samples, Ovibos (musk ox) fibre.

Thesis (M.A. in Decorative Art)--University of California, June 1950. / Bibliography: l. 158-166.

No description available.

Thesis (M.S.)--University of Wisconsin--Madison, 1969. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--University of Texas at El Paso, 2009. / Title from title screen. Vita. CD-ROM. Includes bibliographical references. Also available online.

The aim of this work was to establish a range of suitable process parameters which can be utilized to produce needlepunched nonwoven fabrics for geotextile applications. Nonwoven fabrics were produced from 100% PP, a blend of 50/50% PP/kenaf and 100% kenaf fibres. The depths of needle penetration of 4, 7 and 10 mm, stroke frequencies of 250, 350 and 450 strokes/min and mass per unit area of 300, 600 and 900 g/m2 were utilized for producing the fabrics, on a Dilo loom. The effect of depth of needle penetration, stroke frequency and mass per unit area on the fabric properties, namely, tensile strength, puncture resistance, pore size, water permeability and transmissivity were analysed. In addition, the effect of chemicals, namely, 10% ammonium hydroxide (NH4OH), 10% sodium chloride (NaCl) and 3% sulphuric acid (H2SO4) solutions on degradation of the fabric was also studied. The results have shown that density, thickness and nominal weight of the needlepunched nonwoven fabrics were related to each other and they were influenced by stroke frequency, depth of needle penetration and feed rate of the needlepunching process. The increase in nominal weight of the fabrics also increases thickness and density of the fabrics. The tensile strength and puncture resistance of the fabrics increased with the increases in stroke frequency, depth of needle penetration and fabric mass per unit area. However, lower tensile strength and puncture resistance were achieved in the fabrics produced at lower stroke frequency, lower depth of needle penetration and lower mass per unit area. Bigger pores were resulted in the fabrics produced at lower stroke frequency, lower depth of needle penetration and lower mass per unit area, however, pore size decreased with increases in stroke frequency, depth of needle penetration and mass per unit area. Water permeability depends on the pore size, properties of the fibres, stroke frequency, depth of needle penetration and mass per unit area. Higher tensile strength and higher puncture resistance were achieved in the needlepunched nonwoven fabrics produced from 100% PP fibres, therefore, they are suitable for some load-bearing geotextile applications, such as reinforcement and separation. However, higher water permeability was achieved in the fabrics produced from 100% kenaf fibres, therefore, they are ideal for geotextile applications where good water permeability is required. Higher values for transmissivity were obtained in the fabrics produced from a blend of 50/50% PP/kenaf fibres, therefore they are suitable for drainage applications. The fabrics produced from a blend of 50/50% PP/kenaf fibres achieved better values of tensile strength, puncture resistance, pore size and water permeability in comparison to that produced from 100% PP and 100% kenaf fibres. However, better tensile strength and puncture resistance were achieved in the fabrics produced from 100% PP fibres and bigger pore size and higher water permeability were achieved in the fabrics produced from 100% kenaf fibres. Therefore, it can be suggested that the nonwoven fabrics produced from a blend of 50/50% PP/kenaf fibres can fulfil almost all requirements of geotextile applications, such as, filtration, separation, reinforcement and drainage. The fabrics produced from 100% PP fibres were not damaged or deteriorated when treated with all the three chemicals due to chemical inertness of polypropylene. However, the fabrics produced from a blend of 50/50% PP/kenaf and 100% kenaf fibres were damaged and deteriorated when treated with H2SO4.

The implementation of the North American Free Trade Agreement (NAFTA) between the United States, Canada, and Mexico created a barrier-free production and trade zone in North America. Surrounding the implementation of NAFTA, a great volume of public, political, and academic attention was given to the impact of the agreement on the aging U.S. textile industry with high labor costs. The major NAFTA provisions, the elimination of tariffs and quotas and rules of origin, were predicted to create and divert U.S. trade in textile goods and expand domestic textile production activities. Since its implementation, however, volatile macroeconomic and political environmental changes have severely interfered with the role of NAFTA. Over ten years have passed since the implementation of NAFTA. The objectives of this research are to investigate the pattern of the U.S. textile industry's production activities under NAFTA and to determine the impact of the agreement on the industry's production activities. This research consists of two parts. Part I is a qualitative analysis that investigates changes in the industry's trade and production activities under NAFTA based on the review of literature and trade and industry data. Part II of this research, a quantitative analysis, applies a normalized restricted translog profit model to the textile industry's production activities under the influence of NAFTA in order to identify the pattern of the industry's output supply and input demand and to determine the impact of NAFTA on the industry. The outcomes of these analyses are used to make an overall assessment of the impact of NAFTA on the U.S. textile industry and draw policy implications. The outcome of the qualitative analysis suggests NAFTA as an effective policy in expanding and regionalizing U.S. trades in textile goods and promoting domestic textile production activities in the early years of implementation. Since the late 1990s, however, macroeconomic and political changes have dominated over the role of NAFTA, partially undoing the changes in U.S. textile trade and production activities made in the early years of the agreement. The outcome of quantitative analysis identifies the significant, but negative effect, of NAFTA on the U.S. textile industry's profit performance in the early years of NAFTA, probably due to intensified import competition, fall of real output prices, and numerous mill closings. Overall, NAFTA is recognized as a short-term, transitional policy measure for the U.S. textile industry because of the limited importance of Mexico in U.S. textile trade, the short period of NAFTA implementation, and several dynamic environmental factors including exchange rate changes, U.S. signings of multiple regional trade agreements, and the emerging dominance of China in world textile trade under the phase-out of the Multi-fiber Arrangement that have changed international and domestic textile market competition. Ultimately, this study concludes that a trade policy is not likely to provide a long-term solution for the survival of U.S. textile industry. / Ph. D.

Call number: LD2668 .T4 1953 T64 / Master of Science

The application of textile electrodes has been widely studied for biopotential recordings,especially for monitoring cardiac activity. Commercially available applications, such as theAdistar T-shirt and the Numetrex Cardioshirt, have shown good performance for heart ratemonitoring and are available worldwide.Textile technology can also be used for electrical bioimpedance (EBI) spectroscopymeasurements in home and personalized health monitoring applications, however solid basicresearch about the measurement performance of the electrodes must be performed prior to thedevelopment of any textile-enabled EBI application.This research work studies the performance of EBI spectroscopy measurements whenperformed with textile electrodes. An analysis using an electrical circuit equivalent model andexperimental data obtained with the Impedimed spectrometer SFB7 was carried out. Theexperimental study focused on EBI spectroscopy measurements obtained with different types oftextile electrodes and in different measurement scenarios. The equivalent model analysis focusedon the influence of the electrode polarization impedance Zep on the EBI spectroscopymeasurements in the frequency range of 3 kHz to 500 kHz.The analysis of the obtained complex EBI spectra shows that the measurements obtainedwith textile electrodes produce constant and reliable EBI spectra. The results also indicate theimportance of the skin-electrode interface in EBI spectroscopy measurement.Textile technology, if successfully integrated, may enable the performance of EBIspectroscopy measurements in new scenarios, which would allow the generation of novel,wearable, or textile-enabled applications for home and personal health monitoring / <p>Thesis Supervisors: Kaj Lindecrantz and Fernando Seoane</p><p><b>Sponsorship</b>:</p><p>Mexican CONACYT</p>

Designing Dynamic Textile Patterns Progress in chemistry, fibres and polymers technology provides textile designers with new expressive materials, making it possible to design dynamic textile patterns, where several different expressions are inherent in the same textile, textiles that, for example, could alternate between a striped and checkered pattern. Textiles are traditionally designed and produced to keep a given, static expression during their life cycle; a striped pattern is supposed to keep its stripes. In the same way textile designers are trained to design for static expressions, where patterns and decorations are meant to last in a specific manner. However, things are changing. The textile designer now deals also with a new raw material, a dynamic textile, ready to be further designed, developed and/or programmed, depending on functional context. This transformation in practice is not an easy one for the designers. Designers need to learn how to design with these new materials and their specific qualities, to be able to develop the full expressional potential inherent in “smart textiles design”. The aim of this thesis is to display, and discuss, a methodology for designing dynamic textile patterns. So far, something that mainly has been seen in different experimental and conceptual prototypes, in artistic expressions and for commercial efforts etc. In terms of basic experimental research this thesis explores the turn in textile design practice through a series of design experiments with focus on contributing to identifying and characterizing new design variables, new design methods and new design techniques as a foundation for dynamic textile patterns. / <p>Disputationen sker den 1:a juni 2010, kl. 13.00 i Textilmuseet, Druveforsvägen 8, Borås. Opponent: Senior Lecturer, Mary- Ann Hansen, Danmarks Designskole, Denmark</p>