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Glass-fibre reinforced plastic pipes are widely used to convey fluids for various purposes. They offer a number of distinct advantages over conventional metals, such as high specific strengths, high specific moduli, superior corrosion resistance and low coefficient of thermal expansion. However, their behaviour under lateral quasi-static and impact loading are still not well known. The research programme described in this thesis was designed to characterise the performance of 55° winding angle GRP pipes, subjected to lateral quasi-static and impact loading. Two approaches: experimental tests and finite element analysis, were used to investigate the behaviour of the GRP pipes. The experimental investigation was started with diametral compression of short GRP pipes to examine the structural behaviour and failure mechanisms. Subsequently, lateral indentation tests were conducted on rigid-foundation supported or simply supported specimens using two different indenter geometries: line-ended and flat-ended. Furthermore, low-velocity impact tests were performed under similar conditions as those for indentation tests in order to characterise the response of the GRP pipes and to identify the correlation between the two forms of loading. The pipes exhibited multi-mode failure mechanisms, resin cracks, delaminations and fibre breakage. It is found that delamination, which resulted in significant loss in stiffness and strength, was the most significant mode of failure for the GRP pipes. A good correlation in behaviour was identified between quasi-static indentation and its energy equivalent low-velocity impact when the global bending stiffness of the GRP specimens were high. Specimens with span S 10.5D i, where Di is the internal diameter of the pipe, are considered to have high bending stiffness, while simply supported specimens with S10.5D i have low bending stiffness. Irrespective of the support conditions and loading type, specimens with high bending stiffness followed a failure mechanism sequence: local resin failure, delamination and the fibre breakage. However, the large global bending experienced by low bending stiffness specimens resulted in a change of failure mechanism, only local damage and surface tensile cracks were observed.

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The reason for this paper is to present a study of the compatibility of alkyd polyesters and acrylic paints in a painting technique incorporating plastic laminations. A number of tests ware conducted in order to discover the basic handling and visual characteristics of polyester in combination with acrylic paints. After the initial experiments, or "test plates," the information derived was applied to a series of demonstration paintings.

The chief aims of this practice-based research are to investigate the nature of attachment between person and object in respect to transformation; to find ways in which objects (jewellery) can be transformed to engender a wearer’s emotional attachment; and to demonstrate the different ways of applying such transformations that are pertinent to jewellery. This research has developed a certain type of transformation, which slowly makes traces on the surface of jewellery over time, and is used as an effective way to engender a wearer’s emotional response. The research is situated in the field of contemporary jewellery, and is specifically related to emotion and sentiment; a category of jewellery that relates to the wearer’s emotional feeling. The scope of the study extends to research on emotional design since this research focuses on user experiences in developing emotional relationships with the object and on how the designer/maker can promote the formation of such an attachment to the object. Two practical experiments have been conducted in this research to determine and construct appropriate and effective characteristics of transformation that engender an emotional relationship between the jewellery and its wearer, through the examination of the transformational character of emotional objects and the interactions that people have with transformational jewellery. These two experiments involve the process of making in order to provide a way of thinking through the hand manipulating a material. The use of this material thinking, develops a more broader understanding of the relationship between the transformational object and emotional attachment. Towards the end of the research, a definition of transformational jewellery is constructed that identifies its four important elements. It also provides two sets of practice work that demonstrate the findings and that facilitate the communication of the author’s tacit knowledge gained from the experiential knowledge. This research expands the field of contemporary jewellery by involving studies of emotional design and applying the element of transformation to create an emotional relationship between jewellery and its wearer. This specific transformation, which has been identified in both text and practical works, constitute the main contribution to knowledge in the field of contemporary jewellery.

v anglickém jazyce Charles University in Prague Faculty of Pharmacy in Hradec Králové Department of Pharmacology & Toxicology Student: Iveta Najmanová Supervisor: PharmDr. Marie Vopršálová, CSc. Title of diploma thesis: Hazardous substances that are released from plastic bottles This master thesis focuses on hazardous substances that are released from plastic bottles. Attention is paid especially to bisphenol A and antimony and their effects after oral administration. Given the fact that these substances are harmful to humans, most of the information about their effects was observed in epidemiological studies or studies conducted on laboratory animals and human tissues. The thesis documents the toxicological effects on the body, especially of bisphenol A. To a lesser extent and primarily because of the limited number of studies on this topic, it deals with the influence of antimony. This is a search thesis and the data are the sum of bibliographic records on the subject.

Kwok, Yiu-fai. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 87-89). / Abstracts in English and Chinese. / ABSTRACT --- p.I / ACKNOWLEDGMENTS --- p.II / TABLE OF CONTENT --- p.III / LIST OF FIGURES --- p.V / Chapter 1 --- INTRODUCTION --- p.1 / Chapter 1.1 --- Background --- p.1 / Chapter 1.2 --- Motivation of this project --- p.1 / Chapter 1.3 --- Organization --- p.2 / Chapter 2 --- LITERATURE SURVEY --- p.3 / Chapter 2.1 --- Ionic Conducting Polymer Film (ICPF) --- p.3 / Chapter 2.2 --- Electroactive Polymer (EAP) --- p.4 / Chapter 2.3 --- Micro Active Guide Wire Catheter System --- p.5 / Chapter 2.4 --- Space Application - Dust Wiper --- p.6 / Chapter 2.5 --- Micro gripper --- p.8 / Chapter 2.6 --- Summary of literature survey --- p.14 / Chapter 3 --- METAL-POLYMER COMPOSITIONS --- p.15 / Chapter 3.1 --- Introduction --- p.15 / Chapter 3.2 --- Perfluorosulfonic acid polymer (Nafion) --- p.15 / Chapter 3.3 --- Working principle of ICPF --- p.19 / Chapter 3.4 --- Different types of composition --- p.21 / Chapter 3.4.1 --- Chromium-Gold-polymer composite --- p.23 / Chapter 3.4.2 --- Platinum-Gold-polymer composite --- p.25 / Chapter 3.4.3 --- Silver-polymer composite --- p.27 / Chapter 3.4.4 --- Silver/Copper-gold polymer composite --- p.27 / Chapter 3.4.5 --- Gold-polymer composite --- p.28 / Chapter 4 --- ICPF FABRICATION --- p.30 / Chapter 4.1 --- Introduction --- p.30 / Chapter 4.2 --- ICPF fabrication process --- p.31 / Chapter 4.3 --- Surface pre-treatment --- p.33 / Chapter 4.4 --- Gold thin film deposition (Evaporation) --- p.34 / Chapter 4.4.1. --- Filament evaporation --- p.35 / Chapter 4.4.2 --- Electronic-beam evaporation --- p.39 / Chapter 4.4.3 --- Structural analysis of evaporation --- p.40 / Chapter 4.5 --- Chemical electroplating --- p.42 / Chapter 4.5.1. --- Deposition rate calibration --- p.44 / Chapter 5 --- DESIGN AND PACKAGE --- p.46 / Chapter 6 --- LASER MICROMACHINING --- p.49 / Chapter 6.1 --- Introduction to Laser micromachining --- p.49 / Chapter 6.2 --- C02 laser --- p.50 / Chapter 6.3 --- Nd:YAG Laser --- p.51 / Chapter 6.4 --- Laser micromachining of ICPF actuator --- p.52 / Chapter 7 --- EXPERIMENTAL RESULTS AND ANALYSIS --- p.61 / Chapter 7.1 --- Introduction --- p.61 / Chapter 7.2 --- Measurement setup --- p.62 / Chapter 7.3 --- Width test --- p.68 / Chapter 7.4 --- Length test --- p.73 / Chapter 7.5 --- Voltage test --- p.76 / Chapter 8 --- MICRO GRIPPER ACTUATION --- p.79 / Chapter 8.1 --- Development of micro gripper --- p.79 / Chapter 8.2 --- Micro gripper --- p.80 / Chapter 9 --- CONCLUSION --- p.82 / Chapter 10 --- APPENDIX --- p.83 / Chapter 10.1 --- Procedures in using E-beam evaporator --- p.83 / Chapter 10.2 --- Procedures in using Thermo couple evaporator --- p.85 / Chapter 11 --- REFERENCE --- p.87