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Tesis sobre el tema "Plastic"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

LINDSTRAND, NILS, and KARL THUNELL. "From Plastic to Paper Mapping the real cost of plastics." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-224931.

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2

Sævik, Svein. "On stresses and fatigue in flexible pipes." Norway : Dept. of Marine Structures, the University of Trondheim, 1992. http://catalog.hathitrust.org/api/volumes/oclc/27348152.html.

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3

Zolotaryova, A. "Plastic surgery." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/33929.

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Plastic surgery is a medical specialty concerned with the correction or restoration of form and function. Though cosmetic or aesthetic surgery is the best-known kind of plastic surgery, most plastic surgery is not cosmetic: plastic surgery includes many types of reconstructive surgery, hand surgery, microsurgery, and the treatment of burns. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/33929

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4

Kaartinen, Johanna. "A Checklist for Plastic Product Design: Preventing Pitfalls in a Design Process and Premature Failures of Plastic Products." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-9683.

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Designing an injection molded plastic part requires optimizing the part with respect to various stakeholders’ needs throughout its life cycle. The conditions in which a product is operating in service are often inadequately understood or specified, resulting in wrong material selection, which in turn leads to failure when the product is used. Many aspects interrelate with the initial part design and the essential rules of each should be taken into account to ensure a well-functioning plastic product. Regardless, a part design often passes sequentially from concept development to the manufactur

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5

Mali, Sarvesh. "Study on plastic and mechanical properties of plastic stabilized returned plastic concretes containing supplementary cementitious materials." Thesis, Curtin University, 2016. http://hdl.handle.net/20.500.11937/1068.

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The growing concern for ready mix concrete industry is the disposal of returned unused concrete. In a plastic state, the concrete is a perishable product and the disposal of any unused concrete provides a set of challenges. However, little is known about the most effective parameters for recycling of returned plastic concrete without adversely affecting its properties. The present research has conducted laboratory trials to establish an optimal process for stabilizing returned plastic concretes using set-retarding admixture called “stabilizer”. Three types of cements, widely used in constructi

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6

Doshi, Shailesh R. "A novel coextrusion process for the manufacture of short fiber-reinforced thermoplastic pipe /." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72817.

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7

Pitteri, Silvio. "Processing and evaluation of filled thermoplastics." Thesis, Brunel University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253309.

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8

Burt, Christopher. "Plastic scintillation spectrometry." Thesis, University of Southampton, 2009. https://eprints.soton.ac.uk/72351/.

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Plastic scintillators provide homeland security organisations with large area, low cost gamma-ray counters at international borders. Currently these detectors connot distinguish between the sources they detect, leading to high false alarm rates during primary screening. These alarms must be followed up by time consuming secondary screening techniques using spectroscopic detectors. Here we review current PVT scintillators and present a range of techniques that optimise their characteristics. By combining these optimisations with Symetrica's spectral deconvolution and isotope identification soft

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9

Busillo, Eric. "Characterization of plastic hypodermic needles." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26584.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Colton, Jonathan; Committee Member: Ku, David; Committee Member: Prausnitz, Mark. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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10

Al-Ati, Tareq. "Oxygen permeation of virgin HDPE films versus recycled HDPE films /." Online version of thesis, 1994. http://hdl.handle.net/1850/11875.

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11

Dura, Matthew Jonathon. "Behavior of Hybrid Wood Plastic Composite-Fiber Reinforced Polymer Structural Members for Use in Sustained Loading Applications." Fogler Library, University of Maine, 2005. http://www.library.umaine.edu/theses/pdf/DuraMJ2005.pdf.

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12

Bodalia, Raj. "An investigation of the "walking" behavior in the manufacturing of biaxially oriented polypropylene films /." Online version of thesis, 1988. http://hdl.handle.net/1850/10691.

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13

Aw, Cheong Soon (Samuel). "A study to evaluate the permeation characteristics of black tea flavors and linalool in four different plastic films /." Online version of thesis, 1995. http://hdl.handle.net/1850/11853.

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14

Ruan, Haihui. "Collision between two perfectly plastic beam structures : modeling and verification /." View abstract or full-text, 2004. http://library.ust.hk/cgi/db/thesis.pl?MECH%202004%20RUAN.

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Thesis (Ph. D.)--Hong Kong University of Science and Technology, 2004.<br>Includes bibliographical references (leaves 235-241). Also available in electronic version. Access restricted to campus users.

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15

Moran, Matthew T. "Testing the predictability of water-based flexographic inks on plastic substrates /." Online version of thesis, 1993. http://hdl.handle.net/1850/11271.

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16

McDonald, Seonaidh. "The management of post-consumer plastics waste recycling in the UK." Thesis, University of Stirling, 1996. http://hdl.handle.net/1893/1786.

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This thesis examines the management of post-consumer plastics waste recycling in the UK. It brings together information and approaches from a number of disciplines in order to present a comprehensive view of the post-consumer plastics waste recycling industry and provide insight into participation issues. Two Scottish collection schemes are utilised as case studies throughout. The thesis summarises current practice in post-consumer plastics recycling and describes the processes associated with it. It also presents a summary of legislation relevant to plastics recycling in the UK, EC and US in

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17

Troop, Nicholas Mark. "Investigation of plastic package related failure mechanisms in plastic encapsulated integrated circuits." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/10543.

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An experimental study has been conducted into the effects of package related failures in plastic encapsulated semiconductors. As a result of an extensive literature survey particular emphasis was placed on thermal and moisture related failure mechanisms. A number of accelerated life testing techniques including Highly Accelerated Stress Testing (HAST) were used to induced parameter drift and catastrophic failures. Examples of both insertion and surface mount package types were studied. Observations were made on the parameter drift and catastrophic failure mechanisms of plastic encapsulated Bip

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18

Toor, A. P. S. "Biaxial cyclic plastic bending." Thesis, Coventry University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372393.

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19

Valnes, Lars Magnus. "Accumulated Plastic Strain Program." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for fysikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-26981.

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In this thesis we will look at the implementation and results of the APS program. The program computes the accumulated plastic strain in a umbilical tube for the deformations axial tension, bending and internal pressure. The computation is based on solving incremental problems with the finite element method and the return-mapping algorithm. The return-mapping algorithm encountered convergence failure for large strain increments, this was solved by using the strain increment of $1.0e\sp{-4}\%$.The implementation of axial tension and bending was consistent with the results provided by Nexans Nor

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20

Donkin, Richard Philip. "Plastic photovoltaic roof tiles." Thesis, Stellenbosch : University of Stellenbosch, 2009. http://hdl.handle.net/10019.1/4397.

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Thesis presented in partial fulfilment of the requirements for the degree of Master of Engineering in Renewable and Sustainable Energy at the Stellenbosch University.<br>Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2009.<br>ENGLISH ABSTRACT: This project investigated the feasibility of incorporating photovoltaic cells into plastic roof tiles using injection moulding. Such tiles have the potential to provide robust and distributed electricity contained within the building envelope. Current-voltage curves of amorphous silicon modules were measured un

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21

Rydholm, Rosanna. "Metamorphosis - Making plastic transparent." Thesis, KTH, Arkitektur, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298812.

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In this thesis project I try to make visible the complex problems behind the plastic pollution crisis, the skewed ideas of synthetic plastic and recycling we as consumers are taught, and in what way architecture can help make these systems visible. This is achived through a design method of growth and transformation using plastic waste to create a building that uncovers what would otherwise not bee seen.

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22

Kasichainula, Nagesh. "Mechanic characterization of reinforced rigid polyurethane foams /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418038.

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23

Khan, Mohammad Younis. "The mechanisms of plastic flow in semi-plastic crystals under the hardness indentation." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.279911.

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24

Kang, JiJun. "Determination of elastic-plastic and visco-plastic material properties from instrumented indentation curves." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13509/.

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Instrumented indentation techniques at micro or nano-scales have become more popular for determining mechanical properties from small samples of material. These techniques can be used not only to obtain and to interpret the hardness of the material but also to provide information about the near surface mechanical properties and deformation behaviour of bulk solids and/or coating films. In particular, various approaches have been proposed to evaluate the elastic-plastic properties of power-law materials from the experimental loading-unloading curves. In order to obtain a unique set of elastic-p

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25

Kazemi, Yasamin. "Mechanical and morphological characterization of wood plastic composites based on municipal plastic waste." Thesis, Université Laval, 2013. http://www.theses.ulaval.ca/2013/29823/29823.pdf.

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Les développements récents de la législation associée aux impacts environnementaux des déchets plastiques d’origine post-consommation ont mené à des efforts sur le développement de techniques viables de recyclage. Ainsi, le but de cette recherche était de produire des composites bois-plastique (WPC : wood plastic composites) à partir de la fraction légère des déchets plastiques municipaux (post-consommation) et de résidus de transformation du bois (sciure). Afin d’améliorer la compatibilité et l’adhésion entre le polyéthylène (PE) et le polypropylène (PP), un copolymère d’éthylène-octène (EOC:

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26

Wadstein, Victor. "Circular Economy in Plastic Production : The recycling challenges and solutions in plastic production." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264551.

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The consequences of the linear economy of plastic production has started to show. Media reports of "plastic seas," beaches full of waste, and habitats and environments destroyed. The question on how to make plastic production more circular have been a hot topic. Every year 311 million tonnes of plastic gets produced around the world. The plastics that can be recycled are thermoplastics. 70% of all produced plastic is made from five different plastic materials, PVC, PET, EPS, PP, and HDPE. Of the total of 311 million tonnes 87 million tonnes of that plastic is plastic packages for household con

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27

Maiani, Giorgia <1994&gt. "This is a plastic world. Ricerca sulle implicazioni del consumo e sull'inquinamento causato dalla plastica." Master's Degree Thesis, Università Ca' Foscari Venezia, 2022. http://hdl.handle.net/10579/20698.

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La tesi, facente riferimento all'ambito di sociologia dei consumi, indaga il comportamento d'acquisto dei consumatori, le motivazioni che spingono un utente ad acquistare un oggetto e le successive implicazioni. Successivamente, viene presentato un focus sulla tematica dei rifiuti e l'interazione che i consumatori hanno con essi. Infine, si sviluppa un inquadramento sulla plastica, che attualmente presenta una delle più grandi minacce per gli esseri viventi tra tutte le tipologie di rifiuti. La tesi si pone l'obiettivo di migliorare l'interazione dei consumatori con i rifiuti.

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28

Polito, Carmine Paul. "The Effects Of Non-Plastic and Plastic Fines On The Liquefaction Of Sandy Soils." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/30243.

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The presence of silt and clay particles has long been thought to affect the behavior of a sand under cyclic loading. Unfortunately, a review of studies published in the literature reveals that no clear conclusions can be drawn as to how altering fines content and plasticity actually affects the liquefaction resistance of a sand. In fact, the literature contains what appears to be contradictory evidence. There is a need to clarify the effects of fines content and plasticity on the liquefaction resistance of sandy soils, and to determine methods for accounting for these effects in engineering pr

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29

Tall, Stefan. "Recycling of mixed plastic waste." Doctoral thesis, KTH, Polymer Technology, 2000. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2928.

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30

Eren, Ahmet M. "An Elastic-plastic Beam Element." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607162/index.pdf.

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In this thesis, a two node nonlinear elastic-plastic beam finite element is developed to analyze large deformations. The system of equations are derived from virtual work principle, and the updated Lagrangian formulation is used. Material is assumed to be isotropic and rate insensitive obeying J2-flow rule. Work hardening characteristics of material is considered and all nonlinear terms are included. For the two node iso-parametric beam element a layered model is used to analyze through-the-thickness distribution of elastic and plastic zones. A finite element program is developed and the numer

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31

Alriksson, Kristofer. "Automotive rearview mirror in plastic." Thesis, KTH, Skolan för kemivetenskap (CHE), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-33042.

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The purpose of this thesis work was to carry out initial studies on Scania’s possibility to have plastic rearview mirror glasses as that for example may reduce costs and problems for Scania’s customers and enable another design of the mirror assembly. It was performed by studying the legislative and Scania demands regarding rearview mirrors to write a test program, find and order plastic mirrors, and then perform the tests and evaluate the mirrors to see if they seem good enough for Scania’s trucks. A Scania technical regulation for rearview mirror glass was also written. The tested mirrors

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32

Karlsson, Frida. "Estrogenic Substances in Plastic Bottles." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-37117.

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We live in a time were plastic and plastic products are all around us, taking part in our everyday life. Several chemical additives can be present in plastic products, such as plastic bottles, and can have a big impact on development, as well as on the endocrine system in adults by the binding to, and disturbance of, the estrogen receptor (ER) in cells. This study has focused on a number of different plastic bottles made from different types of plastic and with variations in size and scope of use. The aim of the study was to see if any estrogenic substances leached from the bottles into water.

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33

Sayahi, Faez. "Plastic Shrinkage Cracking in Concrete." Licentiate thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-133.

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Early-age (up to 24 hours after casting) cracking may become problematic in any concrete structure. It can damage the aesthetics of the concrete member and decrease the durability and serviceability by facilitating the ingress of harmful material. Moreover, these cracks may expand gradually during the member’s service-life due to long-term shrinkage and/or loading. Early-age cracking is caused by two driving forces: 1) plastic shrinkage cracking which is a physical phenomenon and occurs due to rapid and excessive loss of moisture, mainly in form of evaporation, 2) chemical reactions between ce

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34

Biber, Nicolas Francis Alexandre. "Plastic fragmentation in the environment." Thesis, University of Plymouth, 2016. http://hdl.handle.net/10026.1/6568.

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Microplastics are small piece of plastic debris < 5 mm in diameter, which arise and enter the environment either as a consequence of the direct release of small pieces of plastic debris or as a consequence of the fragmentation of larger items. They are widely distributed in the marine environment, on shorelines, at the sea surface, on the seabed. They are also ingested by a variety of marine organisms, and there is some evidence that this may cause adverse effects. This thesis investigates the potential sources, distribution and fate of this contaminant. Deterioration of plastics in a variety

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35

Ionescu, Mircea. "Electrostatic separation of plastic wastes." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ28587.pdf.

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36

Siu, Chi-man Benny. "Environmental management of plastic waste /." View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37117464.

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37

Bing, Xinyang (David). "Transvection is a plastic phenotype." Thesis, Laurentian University of Sudbury, 2013. https://zone.biblio.laurentian.ca/dspace/handle/10219/2120.

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Transvection, a chromosome pairing-dependent form of trans-based gene regulation, is widespread in the Drosophila melanogaster genome. Recent studies demonstrate that transvection is sensitive to cell environment and type in D. melanogaster, implicating transvection as a complex trait. To test this possibility, we first established that trans-interactions previously documented at the Malic enzyme (Men) locus are transvection (i.e., pairing-dependent). We then characterized the sensitivity of transvection at the Men locus to changes in the environment (temperature) and genetic background (third

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38

Siu, Chi-man Benny, and 蕭志敏. "Environmental management of plastic waste." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B45013585.

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39

Li, Junhong. "Elastic - plastic interfacial crack problems." Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297517.

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40

Farrar, P. T. K. "Plastic injection moulding machine controllers." Thesis, Bucks New University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378918.

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41

Davenport, James Charles William. "Mixed mode elastic-plastic fracture." Thesis, University of Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357788.

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42

Alcazar, Jorba Daniel. "A conjugated polymer plastic gel." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45359.

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Includes bibliographical references (p. 107-119).<br>Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2008.<br>We present a gel route to process highly oriented conjugated polymer films and fibers. The incorporation of hexafluoroisopropanol, a strong and stable dipolar group, to the polythiophene backbone enhances the solubility and especially, the hydrogen bond forming capabilities of the polymer. This functionalization enables the polymer to build up an isotropic self-supporting network structure based on a combination of polymer-polymer ch

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43

Pieper, Steven Donald. "CAPS--Computer-aided plastic surgery." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13093.

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44

Nance, Richard Wesley. "Compositional explorations of plastic sound." Thesis, De Montfort University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438864.

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45

Roy, Kirsty. "Spray deposition for plastic electronics." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/45287.

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Spray deposition is a promising technique for the solution processing of plastic electronic devices due to its potential for high-speed, large-scale device fabrication using low capital cost equipment. Most recent reports of spray-deposited electronic devices have used ultrasonic systems for film deposition to minimise surface roughness, but such systems suffer from low materials throughput, and are consequently ill-suited to industrial manufacturing. Gas-driven spray-heads enable higher throughput materials delivery but can result in an unacceptably rough film due to the large, broadly distri

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46

Ramadhani, R. K. "Plastic recycling technology in Tanzania." Thesis, Sumy State University, 2014. http://essuir.sumdu.edu.ua/handle/123456789/36270.

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Tanzania, officially known as the United Republic of Tanzania, is a mid-sized country in Eastern Africa bordering the Indian Ocean. It is home to a population of about 46.1 million people. Tanzania has a tropical climate, temperature range between 10°C and 32°C. Currently, With more than 10 bottled water companies, high supply competition in commercial cities and consumption of water bottles have significantly increased, moreover, majority of entrepreneurs in Tanzania own small shops and retail business, door to door and moving shops, the amount of plastic bags and plastic material waste have

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47

Davids, Carol-Ann. "Plastic city and other stories." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/7967.

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Plastic City and Other Stories is a set of inter-connected short stories that capture moments in the lives of members of one family. The stories traverse more than five decades of the family's years lived in Cape Town, South Africa. While the stories are essentially about the individual, greater matters - outwardly beyond the character's experience - affect and influence the decisions, choices and, ultimately, the lives of each character. The collection is underpinned by several themes - the most pertinent being the familial bond which serves as a link between stories and enables the reader to

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48

Persson, Annie, and Johanna Bergsten. "PlaCo : The plastic collecting robot." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-295807.

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The oceans are an essential global resource for all living organisms but especially for us humans. However, year after year we continue to neglect proper recycling of our waste, resulting in litter ending up in our oceans. The majority of said litter comes from single use plastic items. Through fragmentation and erosion, the plastic dissolves to smaller pieces, once they are no larger than 5 mm theyare classified as micro- and nanoplastics. Little is known about these small plastic particles impact on marine life and marine environment. As a step towards understanding this, the robot PlaCo wa

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49

Alaei, Ebrahim. "Hydrodynamic-plastic modelling of sand." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25046.

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This thesis focuses on proposing a novel comprehensively predictive modelling framework for granular materials which builds on the hydrodynamic procedure to satisfy the principles of thermodynamics, mass, momentum and energy conservations. In developing our physical arguments we recognise that complexity of the macroscopic mechanical response of granular media is mainly a result of kinematic degrees of freedom in granular scale. We therefore employ the original concept of two-stage irreversibility by Jiang and Liu (2009) and consider an energy sink from the mesoscopic granular entropy level to

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50

Misner, Scottie, and Carol Curtis. "Cutting Boards (Plastic versus Wood)." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2008. http://hdl.handle.net/10150/146435.

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1p.<br>Revised<br>Which is better, wooden or plastic cutting board? Recent research has confirmed the conventional belief that plastic is safer than wood for cutting meat and poultry. This article explains the reason why plastic cutting boards are better, and gives recommendations on how to keep cutting boards safe.

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