Die Befragung „Ist-Stand der OP-Textilienversorgung in deutschen Krankenhäusern“, die eingebettet ist in das Forschungsvorhaben „Evaluierung von OP-Textilien nach hygienischen, ökologischen und ökonomischen Kriterien“, hat zum Ziel, den gegenwärtigen Stand der OP-Textilienversorgung zu erfassen. Für die Befragung, die sowohl web-basiert als auch postalisch im Zeitraum 11/2008 bis 02/2009 durchgeführt worden ist, wurden vorab alle Krankenhäuser und Kliniken in Deutschland kontaktiert, um den jeweiligen Ansprechpartner für die Beschaffung von OP-Textilien zu erhalten. Der Fragebogen gliedert sich in drei Teile: Abschnitt A: OP-Textilien mit den Unterabschnitten Allgemeines, Ausschreibung von OP-Textilien, OP-Mäntel, OP-Abdeckungen, OP-Kit-Packs, Ökonomische Analyse der OP-Textilienversorgung und Ökologische Bewertung der OP-Textilienversorgung; Abschnitt B: Umweltschutz im Krankenhaus und Abschnitt C: Angaben zum Krankenhaus. Zu den zentralen Ergebnissen der Befragung zählen, dass das Kriterium Versorgungssicherheit das wichtigste Kriterium bei der Ausschreibung ist, gefolgt von Zuverlässigkeit und Reinigungsqualität; dass sowohl Einweg-OP-Mäntel als auch -OP-Abdeckungen häufiger angewendet werden als Mehrweg-Textilien; dass der Tragekomfort der Mehrweg-Mäntel als deutlich besser eingestuft wird als der der Einweg-Mäntel. Ein ähnliches Ergebnis zeigt sich bei der Umweltfreundlichkeit von OP-Mänteln und OP-Abdeckungen. Weiterhin zeigte die Untersuchung, dass eine ökonomische Bewertung bisher häufiger vorgenommen wurde als eine ökologische Bewertung. Bei ökonomischen Analysen, die in den meisten Fällen durch ein krankenhausinternes Team durchgeführt wurden, wurden weitestgehend die Anschaffungskosten/ Miet- bzw. Leasingrate als Kriterium herangezogen. Im Rahmen der ökologischen Bewertung sind vor allem Kriterien wie schadstoffarmer Abfall, geringe Umweltbelastung und wenig schädliche Stoffe von Bedeutung. Insgesamt wird der Umweltschutz tendenziell als wichtig eingeschätzt, wobei die am häufigsten vertretenen Umweltschutzmaßnahmen die Beachtung von Umweltkriterien bei der Beschaffung, die/der Umweltbeauftragte/r und die Zertifizierung nach ISO 14001 sind.

Textile composites can be tailored to meet specific thermo-mechanical requirements for structural applications. The focus of this research is on 2x2 biaxial braided composites since they have good stiffness and strength properties. Moreover, they have potentially better impact and fatigue resistance than laminated composites. Along with good properties, they have a reduced manufacturing cost because much of the fabrication can be automated. In order to exploit these benefits, thorough understanding of the effect of various factors on their material behavior is necessary. Obtaining effective mechanical properties is the first order of concern in any structural analysis. This work presents an investigation of the effect of various parameters like braid angle, waviness ratio, stacking sequence and material properties on the effective engineering properties of the 2x2 braids. To achieve this goal, three dimensional finite element micromechanics models were developed first. Extensive parametric studies were conducted for two material systems: 1). Glass (S2) fiber / epoxy (SC-15) matrix and 2). Carbon (AS4) fiber / Vinyl Ester (411-350) matrix. Equivalent laminated materials with angle plies and a resin layer were also analyzed to compare the difference in predictions from the full three dimensional finite element analysis of the 2x2 braided composites. A full three-dimensional stress state exists in braids even for very simple loading. In order to locate the potential damage spots, the stress distributions in both the matrix and the tows were predicted. The effect of braid angle on location and magnitude of peak stresses was determined.

<p>Syftet med uppsatsen är att analysera utlokaliseringen av tekoindustrin i EU15. Man finner svaren i följande frågor: Vilka faktorer bidrar till omflyttning av produktionen till låglöne-länder? Vilka är vinnarna och förlorarna på denna omstrukturering? Hur klarar den Euro-peiska tekoindustrin av dessa utmaningar? Att redogöra för varje EU-land är för omfattan-de därför valdes Sverige och Portugal beroende på att respektive land har en utvecklad och mindre utvecklad ekonomi. Därutöver riktas deras produktion mot olika sektorer av teko-industrin vilket möjliggjorde landsjämförelsen. Största delen av datan har samlats från SourceOECD’s hemsida då den innehåller information som är viktigast for uppsatsen. Re-sultatet visar att när industrin utvecklas och marknaden till slut blir överhettad börjar indu-strilandet att flytta produktionen utomlands, fokuseringen ändras och impörten blir allt vik-tigare. Denna process sker gradvis med hjälp av liberalisering av världshandel och EU ut-ökning.</p> / <p>The purpose of this paper is to analyze the location dynamics of textile and clothing industries in the EU15. Specifically, it seeks to answer the following questions: What are the factors that contribute to the relocation of European production to low-wage countries? Who are hurt by these changes and who gain? How does the European textile and clothing industry cope with these challenges? It is beyond the scope of this paper to analyze the T/C industry of each EU15 member state. Instead, it specifically investigates Sweden and Portugal’s textile and clothing sectors simply because the former represents Europe’s old economy while the latter the most recent one. In addition, each country devotes its production to the different sectors of the industry, hence this cross-country comparison. Majority of the data is gathered from SourceOECD as the webpage contains information of most value to this paper. The result of this study shows that as an industry matures and competition heats up pricing measures, the developed country moves production operations overseas, ends up as a net importer of the good and shifts focus toward other activities. This process takes effect gradually but the liberalisation of world trade and European enlargement are a few contributing factors which helped anchor relocation decisions.</p>

Dieser Beitrag gibt, basierend auf einem BMBF-Verbundvorhaben, Einblicke in die umfassende Bewertung von OPTextilien. Ziel des Vorhabens ist es, Entscheidern in Krankenhäusern Anregungen und Know-how für ihren Berufsalltag und Produzenten von OP-Textilien Impulse für die Gestaltung ihrer Produkte zu geben. Es werden die hygienischen Anforderungen zur Vermeidung nosokomialer Infektionen, die die Schutzwirkung der Textilien garantierenden textiltechnologischen Voraussetzungen sowie die zur Erfüllung der Wirtschaftlichkeit und Umweltfreundlichkeit notwendigen Anforderungen an OP-Textilien dargestellt. Der Beitrag verdeutlicht, dass die Beachtung all dieser Kriterien und deren Zusammenführung für eine bewusste Entscheidung zum Einsatz von OP-Textilien notwendig ist. / This article describes a holistic assessment approach for operating room (OR) textiles, based on a joint research project funded by the German Ministry of Education and Research. The objective of the project is to ease decision processes for decision makers in hospitals and OR textile manufacturers. The hygienic demands for protection against nosocominal infections, the technological requirements to guarantee textiles their protective properties, as well as the bases for an economically and environmentally optimum decision, are discussed. To permit a holistic procurement decision regarding OR textiles, it is necessary to consider all these criteria and their integration, as proposed in this article.

Thèse de doctorat : Sciences économiques : Lille 1 : 2001. / Bibliogr. f. 332-362.

Reproduction de : Thèse doctorat : Informatique : Reims : 2008. / Titre provenant de l'écran titre. Bibliogr. p. 101-106.

The borders of the twenty-first century come in many forms and are performed by an increasing number of actors in a broad variety of places, both within and beyond the territories of nation-states. This thesis sets out a detailed political geography of how borders operate to reconcile the often conflicting demands of open markets and security. Focusing on Ghana, where there is a widespread fear that the inflow of Chinese versions of African prints will lead to the collapse of the local textile industry, the study explores where and when borders are enforced, who performs them and what kinds of borders are enacted in order to maintain and protect the Ghanaian nation and market without compromising the country’s status as a liberal economy. It combines interviews and documentary sources with analysis drawn from border, security and migration studies to explore three sets of spatial strategies that have defined the Ghanaian approach to the perceived threat of Chinese African prints. They are the institution of a single corridor for African print imports, the anti-counterfeiting raids carried out in Ghana’s marketplaces, and the promotion of garments made from locally produced textiles as office wear through the National Friday Wear and Everyday Wear programmes. These strategies stretch, disperse and embody the borders of the state or nation to control trade in ways that resolve the fears of both open flows and closed borders. This thesis thus seeks to show how a geographical analysis can clarify the specificities of how borders now work to control mobility. In doing so, it not only unsettles conventional assumptions about what borders are and where they are supposed to be located, but also the idea that borders primarily are used to constrain the mobility of certain people while facilitating economic flows. Furthermore, this thesis adds to the understanding of the variety of responses to the inflow of Chinese consumer products to the African continent.

Current military-grade rifle body armor technology uses hard ballistic plates positioned on top of flexible materials, such as woven Kevlar® to stop projectiles and absorb the energy of the impact. However, absorbing the impact energy and stopping a rifle projectile comes at a cost to the wearer - mobility. In this thesis, a new concept for personal body armor is proposed - a semi-flexible hybrid body armor. This hybrid armor is comprised of two components that work as a system to effectively balance the flexibility offered by a soft fabric based armor with the protection level of hard plated armor. This work demonstrates techniques used to analyze and design the hybrid armor to be compliant with National Institute of Justice guidelines. In doing so, finite element analysis is used to simulate the effect of a projectile impacting the armor at various locations, angles, and velocities, while design of experiments is used to study the effect of these various impact combinations on the ability of the armor component(s) (including the wearer) to absorb energy. The flexibility and protection offered by the two component armor system is achieved by the use of proven technique and innovative geometry. For the analytical design, the material properties, contact area(s), dwell duration, and energy absorption are all carefully considered. This yields a lightweight but yet effective armor, which is estimated to weigh 36% less than the current military grade hard body armor. Using ANSYS, several simulations were conducted using finite element analysis, including a direct center impact, along with various other impacts to investigate possible weak points in the armor. In doing so, it is determined that only one of these impact locations is indeed a potential weak point. The finite element analysis continues to show that a rifle projectile impacting at an oblique angle reduces the energy transferred to the wearer by about 25% (compared to a direct impact). A design of experiments approach was used to determine the influence of various input parameters, such as projectile impact velocity and impact location. It is shown that the projectile impact velocity contributes 36% to the ability of the wearer to absorb energy, whereas impact velocity contributes only 13% to the energy absorbed by the top armor component. Furthermore, the analysis shows that the impact location is a highly influential factor (with a 69% contribution) in the energy absorption by the top armor component.

Arsenic-based pesticide residues have been detected on Arizona State Museum’s (ASM) Diné (Navajo) textile collection using a handheld portable X-ray (pXRF) spectrometer. The removal of this toxic pesticide from historic textiles in museums and collections is necessary to reduce potential health risks to Native American communities, museum professionals, and visitors to these cultural institutions. A leader in engineering innovative pesticide removal methods, ASM received federal funding support to continue essential research in removing heavy metal pesticides from cultural property. The research objective was divided into three interconnected stages: (1) calibrate the pXRF instrument for arsenic contaminated cotton and wool textiles; (2) engineer a textile conservation aqueous washing treatment to remove arsenic from wool textiles; (3) demonstrate the aqueous washing treatment method on actual Navajo textiles known to have arsenic-based pesticide residues. The calibration process consisted of a dipping method to produce known homogenous arsenic cotton and wool test samples saturated with solutions of 100, 500, 1000, 2500, and 5000 parts per million (ppm). A linear correlation between observed pXRF test readings and formulated arsenic solutions corroborated the instruments range of detection for arsenic on specific textile materials. The calibration confirms that the pXRF is suitable instrument to measure the removal of arsenic from wool textiles. Wool test samples treated with solutions of an arsenic concentration of 1000ppm were used to develop an optimal aqueous washing treatment exploring the effects of time, temperature, agitation, and pH conditions to efficiently remove arsenic while minimizing damage to the structure and properties of the textile. Each conditional effect removed a certain percentage of arsenic, although the most efficient aqueous washing treatment consisted of submerging a wool textile in deionized water at room temperature for ten minutes with the greatest level of agitation within reason to minimize damage the textile. The final stage of the research applied the aqueous washing guidelines formulated from experimental research on three historic ASM Navajo textiles. Two textiles contained low arsenic concentrations (<100ppm), and one tested with a high arsenic concentration (~1000ppm). The aqueous washing treatment resulted in minimal change for low arsenic concentration textiles, and a 96% removal of arsenic on a high arsenic concentration textile. The preliminary success of removing arsenic-based pesticide residues from historic Navajo textiles greatly impacts the future management of historic textile collections, and also raises questions to further refine the research methodology or pursue alternative related research such as engineering a closed circulating arsenic removal system to limit the quantity of toxic water.

A review on free trade principle in theory and practice suggests that trade liberalization is merely rhetoric under which industrialized countries can pursue specific interests of certain actors more deceptively. The purpose of this thesis is to testify whether this preliminary result on general trade issues is valid in the textile and clothing sector as well. The reasons for the author to narrow her research scope down to this industry are that: first, textiles and clothing had been subject to consistent trade protectionism for more than thirty years since the discriminatory Multi-Fiber Arrangement (MFA) in 1974; second, the Agreement on Textiles and Clothing (ATC) in 1995 was designed to remove all quota restrictions by 1st January 2005 via a ten-year transitional period; third, the European Union (EU) raised safeguard investigations within four months after the expiry of the agreement, and succeeded in re-introducing quantitative restraints back to this sector. The intense and dramatic Europe-China textile dispute in 2005 started from the completion of quota abolishment, but ended up with quota re-imposition, which inspires the author to ask whether the European Union’s trade liberalization in the textile and clothing sector is rhetoric or reality. The thesis examines the conventional stance of the Union’s textile and clothing policy, the actual fulfillment of the Agreement on Textiles and Clothing (ATC), and the development of the Europe-China trade dispute on in 2005. In order to identify involved interest groups and their demands during the implementation of the agreement and in the dispute shortly afterwards, the thesis also analyzes: first, the interaction between protectionist lobbying groups and national governments at the Union’s level; and second, the divergence on the attitudes towards China’s expansion in the European market among member states.             Comparing the Union’s early promises in the Agreement on Textiles and Clothing (ATC) with its actual behaviors during implementation and in dispute, the author finally concludes that the Union’s trade liberalization in the textile and clothing sector is merely rhetoric under which the European Union (EU) pursues the protectionist interests of its domestic textile and clothing producers and those member states with substantial textile and clothing industry.