Dissertations / Theses on the topic 'Print materials'
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1
Buchholz, James L. "Implementing and Evaluating A Bibliographic Retrieval System for Print and Non-Print Media Materials." NSUWorks, 1987. http://nsuworks.nova.edu/gscis_etd/434.
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A fast growing south Florida school district struggled with providing needed central cataloging and processing services to its 103 school centers for library books and non-print media materials. Previous methods employed involved the manual typing of spine labels, book/material check out cards and pockets, and either the original production of catalog cards, the duplication of cards held in the master file or the ordering of available cards from the Library of Congress by U.S. Mail. Prior analysis by the researcher indicated that a computer-based bibliographic retrieval system, properly configured to meet district and school specifications, might be implemented to eliminate the mail ordering of card sets from the Library of Congress and serve to simplify and expedite the "in-house" production of cards and processing of materials not cataloged by the Library of Congress. It was assumed by the researcher that the providing of district-wide cataloging services and full "shelf-ready" processing of media materials to 103 school centers was a significant study worthy of review and relevant to existing problems in the information science field.
A comprehensive search of professional literature was conducted to obtain more information about currently used bibliographic retrieval systems - their merits and disadvantages. Media supervisors in selected colleges and other Florida school districts were queried for their input about research conducted and solutions they employed relative to the selection phase of the study. Based on the information gathering process, possible retrieval systems and/or ancillary products capable of solving the institutional problem were identified. Selected vendors were contacted for specific information about their individual products that was further analyzed for possible acquisition. Based on information received from all sources, the Biblio-File system was found to be the most cost-effective solution, and the one most capable of enhancing cataloging and processing operations. Its purchase was recommended to, and approved by, higher level district administrative personnel.
Once the system was received, it had to configure to insure that produced materials were consistent with both existing institutional guidelines and the MARC, AACR II and ISBD formats. During this phase, existing personnel were trained to use the system and queried for input relative to its implementation. Care was taken during this phase to insure that existing cataloging and processing standards, etc. we’re not sacrificed by an inadvertent enthusiasm to effect positive implementation of the system. By the same token, safeguards were taken to insure that dislike of change, particularly, automated change, on the part of existing personnel, and did not adversely affect the implementation of the system. During the configuration and limited implementation stages, which lasted two months, many procedural changes were identified that would enhance the full implementation of the system. Configuration adjustments were made throughout the configuration and limited implementation stages until system produced materials were of the desired quality and format.
Once the system was up and running and producing materials at a high level of staff satisfaction, system utilization moved into the full implementation stage. During this six month phase the system was used to produce processing materials for all books and audio visual materials cataloged by the Library of Congress. Additionally, the system was used for the in-house production of processing materials for books and audio visual materials for which there was no cataloging data either in the system database or in the district master file. During this phase, many procedural changes were identified and implemented, resulting in the writing of revised procedures for the Processing Section. Significant hardware changes were effected during this phase to enhance the production capabilities. Following the full implementation phase, it became necessary to evaluate the system for effect. In the researcher's opinion, system evaluation had to be based on both a survey of school media specialists relative to their needs and expectations and an in-house time-cost study effected at the institutional level to determine relative costs or savings of the new system as opposed to the preexisting procedures. In that regard, an evaluative instrument was constructed and distributed to district media personnel that facilitated the gathering of data about the effectiveness of the newly operational system from their point of view. Also, a time-cost study comparing the production of processing materials, under the old set of procedures and with the new system, was conducted by gathering direct time measurement data of the cataloging and processing functions. Results from both analyses strongly indicated that system production was viewed favorably from both the standpoint of district school media specialists and administratively from a cost-effectiveness point of view. Several recommendations from both staff and media specialists were analyzed and incorporated into the system production capability. Additionally, the researcher has considered several future measures that would facilitate the storage of cataloging data into a proposed district union catalog. The researcher was able to supervise the selection, installation, configuration, implementation and evaluation of the Biblio-File system.
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Sears, Forest (Forest Orion). "3D print quality in the context of PLA color." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104320.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, 2016.Cataloged from PDF version of thesis.
Includes bibliographical references (page 45).
3D printing is a hot topic in manufacturing and a truly useful tool, but it has limitations. Print quality properties - like raft peelability, dimensional tolerance and surface roughness - are hard to calibrate perfectly. A common material used in fused deposition modeling (FDM) printers is polylactic acid (PLA). One print quality concern is how different colors of PLA print differently under the exact same settings. The inconsistency in print quality by color is bad for designers, students, and engineers who want to rapidly prototype effectively. Analyzing the thermal, chemical and mechanical properties of the different colors of PLA and relating it to the quality of the prints gives the user a chance to calibrate their machine effectively for higher quality prints. The quality of prints are quantified by scoring systems that measure three properties of a print: dimensional tolerance, how easily the raft peels from the print, and the surface roughness. The thermal properties of the different colors of PLA were analyzed using differential scanning calorimetry (DSC) up to 230° C. The integrals of peaks and troughs from the DSC - representing heat absorbed and released by the different colors of PLA - show that each color responds differently to thermal treatment. The mechanical strength of each color was found to be different through uniaxial tensile testing. Yellow and orange filament had high percent crystallinity at -12.1%, while having a high yield stress at 41-45 MPa, and a low yield strain at 6.6%-11% extension. Red and blue filament had low percent crystallinity at ~8.8-10.2%, while having a low yield stress at 33-36 MPa, and a high yield strain at 18%-23% extension. Additionally, Fourier transform infrared spectroscopy (FTIR) analysis determined each PLA color had unique additives. For calibrating printers for reliably high quality prints, crystallinity has a relationship with the amount of material extruded which could factor into qualities like dimensional tolerance and surface finish.
by Forest Sears.
S.B.
3
Martin, Rachel (Rachel M. ). "Mechanical testing of rapid-prototyping refractory ceramic print media." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/86278.
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Thesis: S.B., Massachusetts Institute of Technology, Department of Materials Science and Engineering, February 2013.Page 30 blank. Cataloged from PDF version of thesis.
Includes bibliographical references.
Additively manufactured (3D-printed) refractory alumina-silica ceramics were mechanically tested to ascertain their ultimate tensile strengths and observed to determine their dimensional consistency over the printing and post-printing process. The equipment used to perform tensile testing was designed and built for use with custom-designed tensile test samples. Two ceramic powders, V18 (electronic-grade alumina, colloidal silica, and organic content) and 403C (200-mesh mullite, organic content, and magnesium oxide), were printed into test samples on ZCorporation ZPrinter® 310 and 510 machines, before being infiltrated with tetraethylorthosilicate (TEaS), and in some cases infiltrated again with a 40% by weight suspension of silica in water (Ludox). Ludox-infiltrated V18 proved to be the strongest medium, with a UTS of 4.539 ± 1.008 MPa; non-Ludox-infiltrated V18 had a UTS of 2.071 ± 0.443 MPA; Ludox-infiltrated 403C was weakest with a UTS of 1.378 ± 0.526 MPa. Within V18, greater silica content lead to greater tensile strength, but this did not hold true for 403C. 403C displayed volumetric shrinkage of about 1.5%, while V18's volumetric shrinkage ranged from 7% to 14%.
by Rachel Martin.
S.B.
4
Yamani, Morteza. "Printmaking and illustration with heat : identifying techniques and determining the suitability of print materials." Thesis, University of Gloucestershire, 2006. http://eprints.glos.ac.uk/3153/.
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The practice-led research was concerned with the development of the combination of high relief prints and the creation of different shades of printmaking inks through heat. The research was in the proportion of 60% practice and 40% theory. To locate this research within contemporary practice, the study began with the literature review and consideration was given to the work of artists, who use heat in their work. The literature review also investigated embossed patterns and relief techniques including the work of artists who produce imagery through pronounced relief. Existing colour systems were reviewed and these assisted a framework for correlating the colour samples that were modified through the application of heat to printing ink. This review demonstrated that there was no compelling evidence to suggest that artists had seriously taken into account the connection between heat, colour and relief pattern. Studio research consisted of a series of studies that explored the potential of heat and its facility to change the effect of printmaking inks. In this research, temperature, variation and duration were all recorded. Research also examined the ability of heat to relax and release paper fibres under pressure thereby achieving extremes of positive and negative relief, as well as embossed and textured surfaces. This was done by exploring different methods of pressing paper under heat to form and print a variety of high relief, involving concave and convex forms. The research also examined punctured paper, tears, and embossed holes and examined how the fragmentation of paper fibres could be enhanced through heat. The research culminated in the making of a series of full scale prints that demonstrate the use of heat and its ability to enable high relief prints and subtle changes of colour. The research concluded with an examination exhibition and a written dissertation.
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Tipton, Roger B. "Direct Print Additive Manufacturing of Optical Fiber Interconnects." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7651.
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High performance communications, sensing and computing systems are growing exponentially as modern life continues to rely more and more on technology. One of the factors that are currently limiting computing and transmission speeds are copper wire interconnects between devices. Optical fiber interconnects would greatly increase the speed of today’s electronic devices. In this study it has been demonstrated that by using a new Direct Print Additive Manufacturing (DPAM) process of Fused Deposition Modeling (FDM) of plastic and micro-dispensing of pastes and inks, we can 3D print single and multi-mode optical fibers in a controlled manner such that compact, 3-dimensional optical interconnects can be printed along non-lineal paths.
We are FDM printing the core materials from a plastic PMMA material. We are dispensing a urethane optical adhesive as the core material. These materials are available in many different refractive indices. During numerical simulations of these fibers, we were able to show through manipulation of the refractive indices of the core and cladding that we can also improve the bend performance of our fibers. As a result, they can perform better as an interconnect in tight routings between components as long as the interconnect fiber distances remain less than 1 meter.
Fibers have been fabricated with diameters between 77 and 17 µm across an air gap with a surface roughness of less than 450 nm and cladded and tested with transmission rates of about 46%. 12 µm fibers have successfully been fabricated on a cladded surface as a proof of concept to test the small diameter and 3D shaping capability of this process.
6
Lloyd, G. "Psychological responses to information about human papillomavirus and cervical cancer : methods of evaluating print materials." Thesis, University College London (University of London), 2012. http://discovery.ucl.ac.uk/1346464/.
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Learning about human papillomavirus (HPV) has been identified as a possible source of negative affect in women, but the extent and nature of these emotions is unclear, along with whether they are associated with negative attitudes and behaviours (particularly with respect to HPV vaccination). The goal of this thesis is to examine the psychological impact of human papillomavirus (HPV) information using measures of knowledge, behavioural intentions, mood, attitudes and implicit associations. Existing literature was reviewed to examine a range of methods and outcomes suitable for use. Study 1 examined responses to health information in adolescent-aged women using a randomised between-participants design, and was carried out in a classroom setting. Participants given information about HPV and cervical cancer showed strong interest in future vaccination and did not display any more anxiety (as measured by the short form of State Trait Anxiety Index; STAI) than those participants given alternative control information. Three further studies adapted and refined this method for use with older women of university-going age in one-on-one testing sessions. These studies employed an enhanced range of outcomes, many of which were administered as repeated measures, and although showed positive evaluations of HPV material, strong behavioural effects were more difficult to elicit. Again few effects of anxiety were observed between information conditions. Implicit evaluations of the concept of ‘cancer’ were also examined using a computer-based Implicit Association Test, which showed some evidence of changes in associations following information exposure. Correlates of changes in implicit associations were also examined, with some relationships shown with behaviour and knowledge uptake but not anxiety or attitudes.
7
Giritlioglu, Bugra. "The effect of print style on mechanical and microstructural properties of structural ceramics fabricated via three-dimensional printing." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/11241.
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Zhu, Jiani. "Applying UX design approach to Cardiac Home Care Education: Design case studies with print and digital Materials." University of Cincinnati / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1504803533639022.
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Strecker, Morgan. "Realizing the right to health through the use of health print materials in the Western Cape, South Africa." Master's thesis, University of Cape Town, 2011. http://hdl.handle.net/11427/10759.
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Includes bibliographical references.This qualitative study was conducted in Cape Town, South Africa in 2010. It examines the effectiveness of promotional educational pamphlets on the awareness, understandings and practice of the right to health among eight civil society organizations and their constituents.
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Vatani, Morteza. "Additive Manufacturing of Stretchable Tactile Sensors: Processes, Materials, and Applications." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1436202948.
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Murray, Jacqueline Ruth. "A visual analysis of HIV/AIDS antiretroviral therapy print campaign materials found in four Western Cape community clinic environments." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/23426.
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Print media campaign material strongly influences people's perceptions of illness and health and the role and purpose of medication (NSMC, 2010: np). Because adherence is critical to the successful management of the Human Immunodeficiency Virus (HIV) and Acquired Immune Deficiency Syndrome (AIDS), the introduction of antiretroviral treatment (ART) into the South African health sector presented a major communications challenge, namely how best to communicate awareness and administration of the drugs and how they should be taken. Over the past ten years, the government Department of Health (DoH), the Treatment Action Campaign (TAC), and other prominent nongovernmental HIV/AIDS organizations (NGOs) such as Love Life, Soul City and the Bishop Tutu Foundation have defined a number of different objectives aimed at the promotion of prescription generic antiretroviral drugs (Venter, 2014:3). This has led to an increase in the number of campaigns, each having singular visual representations of HIV/AIDS and users' relationships to antiretroviral drugs. Despite this, stigma and distrust around HIV/AIDS is prominent among the South African public (Rubincam, 2013:13). As a result, there remains a large amount of ambivalence toward the impact of ART on the body and its place within many communities. This has a direct bearing on issues of adherence. For this reason, it is important to study the nature and efficacy of the materials currently being used for social marketing in this context. This qualitative study therefore questions the nature of the current visual language of ART related leaflets and posters found in four Western Cape community clinics and asks whether the content effectively communicates an understanding of antiretroviral therapy, specifically around issues of adherence. In this study, I aim to identify ART adherence social marketing communication strategies used by leading NGOs and the DoH in South Africa. The nature of the visual and textual representations of antiretroviral print media campaign materials found in four Western Cape community clinic environments is established. The purpose of this research is to provide contemporary and useful information on the style, content, and design of social marketing materials in the hope that it will add significant value for further research on ART adherence. This study is a microanalysis focused on quality, not quantity. The investigation is modest. It does not consider a large sample and is intended as a starting point for further research. I hope to identify possible gaps between the combination of messages offered in leaflet and poster print media, and the needs of those infected with the virus, especially at a time when it necessitates they begin ART. The intended impact of this research is to encourage an increased understanding and awareness by government and NGO marketing departments of their campaign material so that it facilitates the transition onto treatment in a way that is empowering, informative, empathetic, and responsible.
12
Sui, Yongkun. "A Low-Temperature Printing Technology for Fabricating Electrically Conductive Structures and Devices Using Plasma-Activated Stabilizer-Free Inks." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1562589709669126.
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Bancora, Simone. "Characterization of fabric layups by pressure print analysis and simulation of dual-scale flow based on topological skeletonization : application to composite materials processing." Thesis, Ecole centrale de Nantes, 2021. http://www.theses.fr/2021ECDN0049.
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Dans cette thèse, nous nous intéressons aux préformes fibreuses dans le cadre du procédé Resin Transfer Moulding (RTM). L'objectif de la thèse est double : proposer une nouvelle méthodologie pour obtenir des données géométriques à la mésoéchelle des préformes et fournir un nouveau modèle numérique capable de prédire la perméabilité ou d'effectuer des simulations d’écoulement efficaces à la méso-échelle. Dans la première partie, l'accent est mis sur l'acquisition de données géométriques : nous proposons une nouvelle méthodologie basée sur l'analyse du champ de pression supporté par une préforme sèche sous compactage. Un film sensible à la pression mesure le champ de pression par un empilement de plis contre les parois du moule. Profitant de l’architecture périodique des textiles, les empreintes révélées par le champ de pression sont interprétées par analyse spectrale de Moiré pour mesurer l'orientation et la distribution spatiale de chaque couche dans l’empilement. Dans la seconde partie, le modèle numérique de la préforme est utilisé pour effectuer des simulations numériques d'écoulement à l'échelle des fils, afin d’en caractériser la perméabilité ou d’effectuer directement des simulations de remplissage. La géométrie 3D de l’empilement est remplacée par un squelette préservant les propriétés topologiques nécessaires à la résolution numérique du problème d'écoulement bidimensionnel, réduisant considérablement le coût de calcul par rapport à une approche 3D complète. Ce modèle de réduction du volume poreux en squelette est d'abord formulé dans sa version simple échelle (écoulement inter-mèche), puis étendu en double échelle (écoulement inter- et intra-mèche). Le potentiel du modèle est illustré à travers plusieurs cas tests. Cette recherche propose une méthodologie allant de l'acquisition de données géométriques à la simulation numérique double-échelle de l'écoulement au sein dans un empilement de tissusIn this work, we study continuous fiber preforms in the context of Resin Transfer Moulding (RTM) processes. The aim of the thesis is two-fold: propose a new methodology to obtain mesoscale geometrical data from preforms and provide a new numerical model able to predict permeability or perform mesoscale filling simulations in a computationally efficient way. In the first part, the focus is on the acquisition of geometrical data from preforms: we propose a novel methodology based on the analysis of the pressure field experienced by a dry preform under compaction. By using a commercial pressure-sensitive film, the pressure field exerted by a stack of layers against mould walls is captured and analyzed. Taking advantage of the periodic morphology of textiles, geometric patterns revealed by the pressure field are interpreted according to spectral Moiré analysis to recover the orientation and spatial distribution of each individual layer in the stack. In the second part, the reconstructed digital architecture of the preform is used to carry out numerical flow simulations at the scale of the yarns, to characterize permeability of the stack or directly perform filling simulations. The stack geometry is replaced by a skeletonized representation of the same, on which a two-dimensional flow problem can be solved numerically, greatly reducing the computational cost when compared to a full 3D approach. This “medial skeleton” model is first formulated in its single-scale version (flow in channels) and then extended to dual-scale (flow in channels and yarns). The model potential is illustrated through several test cases. This research establishes a pathway going from the non-destructive acquisition of data to the simulation of the dual-scale flow inside a multi-layer layup of textiles
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Veerman, Nora. "Fashioning Cultural Equity : A study of the materials, practices, products and consumers of fashion company Afriek." Thesis, Stockholms universitet, Modevetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-170349.
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In today’s globalising world, cultural differences are often exacerbated and exploited for commercial purposes. Recently, various transnational fashion companies have arisen that aim to soothe such cultural tensions, establishing cross-cultural dialogue through the production of fashion. This thesis explores how one of such companies, Afriek, may bridge cultural differences through the production of garments made of African kitenge cloth, in a crosscultural collaboration between The Netherlands and Rwanda. In this study, the company is regarded not as a homogenous, profit-directed entity, but as a complex network of mutually affective human and non-human actors. Through a material culture study of kitenge and ethnographic interviews with Afriek’s team and consumers, their encounters and interactions are located. These are analysed with Homi Bhabha’s concepts of Third Space and cultural hybridity, concepts that challenge cultural binaries. In a transnational and cross-cultural journey past Afriek’s materials, practices, products and consumers, this thesis positions Afriek as a company that productively and affirmatively engages with existing cultural diversity through fashion.
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Scully, Sean W. "Cameos For Modern Times." Kent State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=kent1279137863.
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Vo, Julie Marie. "(im•print) A Material Investigation to Encourage a Haptic Dialog." Scholar Commons, 2010. https://scholarcommons.usf.edu/etd/1800.
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The word impression encompasses a dual meaning which desires to be more fully explored in the built realm. An (im-print) has a powerful impact because the message becomes an indelible mark embedded within the material. Physically, an impression is made by the pressure of one object on or into another, leaving behind a trace of this interaction on the surface. This process has the potential to create a vivid memory within the participant who comes into contact with it.
The idea of imprint can become a part of the process of design both physically and conceptually. As polished concrete can be marveled for its beauty in craftsmanship, so too can the manipulation of surface serve as a valuable haptic communicator for those who interact with it. Sight is a powerful sense, but it remains devoid of any physical relationship with the world surrounding us and provides a level of separation which discourages us to examine our environment on other sensorial levels.
By (im-print)ing a material it transforms from a purely visual statement into a haptic experience, engaging the user and introducing a visceral dialogue.
Inspired by the process of letterpress print-making, surface can be explored to tactilely communicate narratives of craft, materiality, and process, and open a new haptic dialogue to the body; subtly but powerfully.
Through a tactile investigation of materials' expression, we can gain a greater connection to that which envelops us and encourage a corporeal dialogue between user and built environment.
This process sets out to create an assembled space through the process of making, molds and prints, and to relay this education of process and materiality to the user hapticly, engaging the senses and in turn (im-print)ing upon the user an indelible quality of experience which inevitably impacts further exploration within the built environment.
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Richardson, Lesley, and n/a. "The effectiveness of videotape support in enhancing print based learning material." University of Canberra. Education, 1989. http://erl.canberra.edu.au./public/adt-AUC20061107.124959.
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In higher education greater emphasis is being placed on independent study
techniques for both on-campus and off-campus (distance education) students.
At the University College of Southern Queensland the development of learning
support material has been print based with other media included as
supplementary material.
The purpose of this study was to see if videotape support material had a mark
benefit on the improvement of learning for students using print based study
material as their basic learning resource.
A Solomon Four-Group research design was used for this study. Subjects
comprised all level-three Diploma of Education students of the UCSQ
undertaking a creative arts unit. Sculptures produced by the students were
assessed by three judges using a rating scale devised by the researcher.
Results indicated that no benefit was gained by the addition of videotape
support material. Implications for the design and integration of videotape
support material in independent study material, and for production procedure
are presented in this study.
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Sjögren, Linn. "Tourist : An investigation of the printed Hawaii shirt." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-14887.
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The aim of this work is to explore the printed Hawaii shirt through material investigations in search of new print meetings. A vital step for this investigation was to develop the classic Hawaii- prints and motives in mixed media. Followed by exploring alternative printing techniques such as transfer printing, laser cutting and knitting in different materials to reach new expressions yet keeping a clear reference to the Hawaii shirt. The intention of this work was to investigate how the Hawaii shirt with its classic print could interact with the mind and body of the wearer. Furthermore, to question the informal rules of wearing a Hawaii shirt with a starting point in Umberto Eco’s theories about epidemic self-awareness. The motive of this work is to critically look at the society today, with a focus on consumerism, foreign travel and tourism and the expression of it, with the Hawaii shirt as a symbol of these things. Based on the assumption of the Hawaii shirt being a tacky souvenir that tourists bring back home from their holidays. This work show new expressions of the printed Hawaii shirt through innovative print meetings. This work also proposes alternative ways of wearing a Hawaii Shirt.
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Carter, Justin B. "Vibration and Aeroelastic Prediction of Multi-Material Structures based on 3D-Printed Viscoelastic Polymers." Miami University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1627048967306654.
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Leal, Ayala David Ricardo. "Paper re-use : toner-print removal by laser ablation." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610476.
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Dramshöj, Lärke. "Assembled Garments : Exploring the potential of secondhand garments as new material and method for fashion design." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-26634.
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The interest of this work is found in the potential ways of reconstructing 2hand garments and how form and wear can be explored within that field. The methods applied on 2hand garments investigate traditional usage, shape and how to create new form and silhouettes, while allowing a reconstructed garment to be reversed/transformed back to original state. The aim is that the garments are to keep it’s original value, and thus making its sustainable potential higher. Significantly, the project discusses how our pre-existing visual perception of unwanted 2hand garments can be expanded, when they are reconstructed and recycled (unharmed).
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Fang, Frank Yuxing. "Effect of print orientation on mechanical material behavior in fused deposition modeling 3-D printing." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111505.
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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2017.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 59-62).
Additive manufacturing, also known as 3-D printing, has in recent years experienced a meteoric rise in relevance and application that has seen the technology be used in wide range of industries, from aerospace to construction to healthcare. However, many of the methods used for 3-D printing, such as Fused Deposition Modeling (FDM), are layer-based processes, resulting in anisotropic material behavior of the printed object. Thus, the print orientation of the object is a crucial factor in its mechanical properties, such as strength and elastic modulus. While anisotropy in 3-D printing has been extensively studied, a gap in current research exists because previous literature only considered different orthogonal configurations of specimen orientation. This thesis investigates the effect of print orientation on the tensile mechanical material properties of FDM printed test specimens in finer detail. By analyzing many print orientations in between the orthogonal configurations, this project seeks to develop a better, higher resolution understanding of anisotropic behavior that could inform engineers and designers about how to account for anisotropy in their prints.
by Frank Yuxing Fang.
M. Eng.
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Brixland, Nikolina. "Light Stabilisation of Photochromic Prints." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-10262.
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Light stabilisation of photochromic dyes is seen as the most challenging part in the development of photochromic dyes. The aim of this research is to compare stabilisation methods and their effect on the lifetime of a photochromic print on textile. The vision is to create a textile UV-sensor that detects current UV light exposure in the surroundings and alarms the wearer by showing colour. The developed inks have been formulated for ink-jet printing as a novel production method with resource saving properties. UV-LED light curable ink formulations were prepared for two dye classes; a non-commercial spirooxazine, a commercial spirooxazine (Oxford Blue) and a commercial naphthopyran (Ruby Red). Two different stabilisation methods were applied; chemically by incorporation of hindered amine light stabilisers and physically by polyurethane coating. Fatigue tests were performed to evaluate and compare the stabilisation methods. The tests included were household washing, multiple activations and intensive sun-lamp exposure. As a result it was found that Oxford Blue and spirooxazine had an initial better resistance to photodegradation than Ruby Red. The coating reduced the ability of colour development in higher extend for Oxford Blue and spirooxazine compared to Ruby Red. Moreover, the photocolouration increased with the number of activations for Oxford Blue and spirooxazine in particular. In general, the physically stabilised samples showed a better or similar fatigue resistance compared to chemically stabilised samples. On the other hand the results are weak in significance. It is concluded that the developed coating method in combination with further optimising has potential.
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Nilsson, Linnéa. "Textile Influence : exploring the relationship between textiles and products in the design process." Doctoral thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-1058.
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Textile materials and textile design are a part of countless products in our surroundings,as well as diverse design fields and industries, each of which has very different materialtraditions and working methods. The aim of this thesis is to add to our understandingof the relationship between textiles and products in the design process, and to explorehow textiles enter and influence product design processes and how products functionin textile design processes. A further aim is to examine the effect of new textiletechnology, such as smart textiles and 3D printed textiles, on this dynamic. This thesis is the result of an interplay between theoretical work, experimentalpractice-based projects, and observation of design practice, and it presents two typesof results: Firstly, descriptions of how the relationship can manifest itself in the designprocess, which give a broad picture of the relationship between textile and productand in so doing add to our understanding of textiles as design materials and highlightsome of the additional complexities and possibilities for the design process that comewith new forms of textiles. Secondly, this thesis presents ways of describing thedynamics between textiles and products in the design process, with the intention ofopening up for reflection on how we design, and can design, with textiles. Here, themain outcome is a theoretical framework which examines the relationship from botha product design and a textile design perspective, and includes methods and questionsthat can be used to explore and define how textiles and products meet in the designprocess.
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Kašpárková, Kristýna. "3D tisk kompozitních materiálů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417454.
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The submitted thesis deals with a study of composite materials and processing them using 3D printing technology. The experimental part of this thesis is focused on the production of test samples with the use of additive technology Fused Deposition Modeling and Continuous Filament Fabrication. The composite samples made of common onyx material, individually reinforced with continuous carbon fiber filaments, kevlar, or fiberglass, were made with Marforged Mark Two 3D printer. The other samples made of PETG PM and PETG CFjet materials were made with Original Prusa i3 MK2S 3D printer. For technological evaluation, a tensile test was performed on samples, following the norm EN ISO 527-2:2012. Based on results obtained from tensile testing, the properties of materials strength and usability are verified and compared. In this work, the production process is proposed, and technical-economic evaluation is made. In conclusion, achieved results and overall benefits of this work are summarised.
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Schwartz, Kathryn Anne. "Meaningful Mediums: A Material and Intellectual History of Manuscript and Print Production in Nineteenth Century Ottoman Cairo." Thesis, Harvard University, 2015. http://nrs.harvard.edu/urn-3:HUL.InstRepos:23845476.
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Meaningful mediums is a study of the political economy of writing in the first Ottoman city to develop a sustained urban print culture. Cairo’s writing economy comprised the longstanding manuscript industry, the governmental printing industry from the 1820s, and the for-profit private press printing industry from the 1850s. I investigate these industries’ functions, interactions, and reputations to explore why Cairene printing developed and how contemporaries ascribed meaning to textual production during this period of flux.
This study relies on the texts themselves to generate the history of their production. I aggregate the names, dates, and other information contained within their openings, contents, and colophons to chart the work of their producers and vendors for the first time. I then contextualize this information through contemporary iconographic and descriptive depictions of Cairene texts. My sources are drawn from libraries and private collections in America, the United Kingdom, the Netherlands, and France. They include formal and ephemeral manuscripts and printings.
Against narratives that invoke printing as a catalyst for modernity, I argue that printing was simply a tool. Its adoption increased because it was useful for different actors like the state, private entrepreneurs, and scholars who employed it to respond to specific political, economic, and intellectual needs. My argument reverses the causality of modernization narratives, in that I establish that printing was the result of practical demands instead of the origin of new demands. As a tool, printing was deployed by Cairenes flexibly. Some used it to appropriate western norms, including the idea that printing is a civilizing force. Others used it to enact manuscript tradition.
The history of this process is important to social practices, like the creation of new professions. But it is also important to historical legacy. Nationalism, Enlightenment, and civil society are assigned their origins and proof in Cairene printings from the 1870s and 1880s. Yet this narrative of the Middle East’s generic print modernity draws from the expectation for printings to engender public discourse and galvanize society, instead of from the words that these texts actually contain or an understanding of who made and consumed them and why. To counter the prevailing idea that printing is fixed and universal in its value and effects, Meaningful mediums examines printing as both a social and economic practice, and itself a space for ideas. It therefore emphasizes the significance of human agency, local context, constraints, and continuity during a period of momentous technological, textual, and cultural change.
In conclusion, this study documents Cairenes’ incorporation of printing into their political economy of writing and revises the widely held notion that this process was an agent of social change, a marker of modernity and colonial restructuring, and a foreign disruptor of local textual tradition.Middle Eastern Studies Committee
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Koca, Asli. "Authentication Of Space: The Photograph As A Raw Material For Architectural Production." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12611454/index.pdf.
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This thesis is a critical reconsideration of the relationship of architectural production with its unique mode of representation: &ldquophotography.&rdquo
Photography has been interpreted essentially as a technique and a visual medium to document architecture in general. The &ldquo
photograph,&rdquo
in this sense, is regarded as a representational form of documentation and an artistic and material expression of architecture. Besides this conventional value, this study argues that photography not only provides a new medium for the reinterpretation of architectural space, but also a new material and technique for architectural production. In this respect, this study discusses photography as an emerging tool for architecture in which the photograph is conceived as a raw material. As in the manufacturing of a raw material in an industrial process, the main argument of this study is that as long as a photograph is processed with required components, it contributes to architectural production in a comparable manner. Even it has the potential to produce architectural space in its own right. To understand the nature of this architectural space supported by a variety of physical and non-physical characteristics of photography, this study compares two different ways of architectural production with the aid of photographs. Starting with the assumption that there is a radical change in the conception of photography in architecture from an immaterial quality to material essence, this study argues that the photograph is a raw material that can be used to authenticate architectural space from the initial idea to the built object. Therefore, drawing attention to the changed value of photography for architecture over time, the aim of this study is to establish a critical framework to understand and discuss this contemporary function of photography in architecture.
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Tanaka, Minne. "The twelve large colour prints of William Blake : a study on techniques, materials and context." Thesis, Nottingham Trent University, 2008. http://irep.ntu.ac.uk/id/eprint/79/.
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The aim of this thesis is to study in entirety the group of large colour prints which William Blake made between 1795 and 1805. The series of prints represents the single most important and complete development of Blake’s skill as an innovative printmaker. Although they include some of Blake’s best-known images, they have not been studied before in their entirety or from the point of view of analysing the techniques and methods Blake had used. My study will show how Blake executed these truly impressive prints in terms of materials, method and motives. The first half of the thesis deals with the materialistic aspects of Blake’s colour printing. In chapter one tracing the controversial two-pull discussion to the root, I will make clear the focus points as well as revealing the early tradition of experimental criticism on Blake’s colour printing method. Focusing on two important critics, W. Graham Robertson and Ruthven Todd, and the periods they lived, I attempt to reveal the role they played in a wider context. Also I show how the tradition of Blake’s art was inherited directly through the Ancients to the Pre-Raphaelite Brotherhood, which leads to Robertson and Todd. In the second chapter I deal with the development of Blake’s colour printing experiments. It is obvious that the Twelve Large Colour Prints were produced as a result of Blake’s series of colour printing experiments, starting with monocolour simple prints, going through the illuminated books progressing with more colours and higher skills. As the experiments processed, the illustrations started to get free from the text and became independent visual art. Thus the Large and Small Book of Designs are compiled of full-page designs taken from the earlier illuminated books and printed in full colours, and interestingly some prints are colour printed from intaglio-etched plates. Based on my direct experience of comparing various prints and feeling the differences of the stages in the experiments in a relatively short period of time during my two research trips to the United States, I attempt to reconstruct the development of colour prints placed in his entire oeuvre. Chapter three is the history of colour printing. Throughout history, many innovative printers attempted colour printing, but the number of those who succeeded both technically and financially was surprisingly few. Some were obliged to pursuit their aesthetic in amateurish wasteful spending even ending in bankruptcy, and some compromised the quality for mass production and cost effectiveness. But there have always been innovative printers trying to produce prints in colour. Taking in the whole picture, I try to understand Blake’s colour printing better. Chapter four is my attempt to record scientifically attained information about the materials Blake used. Most of the information in this chapter is taken from the results of the research conducted by the Tate conservationists led by Joyce Townsend. Thanks to their state of the art equipment, most of the pigments and other materials are now identifiable. By studying materials, we can grasp the method physically. The latter three chapters narrow the focus on the series of Twelve Large Colour Prints itself. Chapter five deals with the actual examination of the prints. During this doctoral project, I saw all prints extant, except two, Nebuchadnezzar at Minneapolis and Good and Evil Angels in a private collection in New York. Based on my direct experience, I give the full record of the location, comparison of different pulls and further information for each print. In chapter six I trace the footstep of academic criticism in the field of art history to show what has been said about the interpretation of the Twelve Large Colour Prints. The first important critic was Anthony Blunt. As the director of the Courtauld Institute he not only set the base tone of Blake criticism in this field with his monograph but educated many critics after him. Various critics contributed to accumulate knowledge, but none could propose a decisive narrative to unite the whole set of prints. The latest proposal was made convincingly by Butlin and Lindsay in 1989 to put them in six pairs. In chapter seven I attempt to give my own interpretation of Blake’s motivation from his contemporary social situation and the art discussion Blake joined in. In relation to the art world Blake lived in, especially to the boom of galleries opened one after another by influential printmakers, I speculate what drove Blake to invent new methods and produce those exuberant colour prints.
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Gennert, Jakobsson Josefine. "Who’s tooth? Houndstooth! : An investigation about howto use houndstooth patternto generate form andsurface with acut-and-weavemethod." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-14885.
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With an interest within colour and print this work developed into questioning their lack of function regarding creating or contributing to from. It investigates how to generate form and surface on a body based on houndstooth pattern. The hypothesis is to find methods that increases a prints expressional possibilities and to find a way to create shape from the prints qualities. It concerns the subject how print, colour and materials relate and affect each other depending on for example saturation, quality and scale. Based on the construction of a woven houndstooth a specific method to generate form have been developed, here called cut-and-weave. The result is performed in 7 outfits where this method is applied in various ways. Together they illustrate, not only that a print can give form by manipulating its construction, but also that a print can be enhanced and reinforced by executing it in different ways.
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Schade, Melody Marchman. "Paratextual frames| A material study of Ottaviano Petrucci's four-voice Venetian motet prints, 1502-1505." Thesis, State University of New York at Buffalo, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3629842.
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This dissertation constitutes a material study of the four-voice motet prints published in Venice by Ottaviano Petrucci between 1502 and 1505. These prints, Motetti A, Motetti de passione de cruce de sacramento de beata virgine et huiusmodi, Motetti C and Motetti Libro Quarto, coincided with a burgeoning silent reading culture that was interested in and attuned to devotional reading—particularly as it was made available through books of hours (horae)—and thus, represented a new opportunity for early sixteenth-century singers, readers, and collectors. This dissertation considers how the relationship between motet print, reader and horae might have encouraged a devotional attitude from readers and singers of these volumes.
Chapter 1 considers horae, late medieval reading practice, and the intertwined relationship between reading and prayer. Many of the material aspects of the prints—especially size and mise-en-page ("page layout")—are similar to those of contemporaneous books of hours (horae) and their likeness might have encouraged a reading posture that resonated with devotional reading. Additionally, pictorial evidence is presented that suggests that by the mid-sixteenth century at least one family may have considered printed music in this manner.
Chapter 2 takes the page as a formal starting point and, building upon the work of Gérard Genette and Bonnie Mak, extends the discussion of materiality to considerations of paratexts. Here, a nuanced reading of the mise-en-page, which considers the page layout, typeface, musical font, and table of contents (tavolae), reveals a web of intellectual and devotional associations available to a contemporary reader of Petrucci's four-voice Venetian motet prints.
Chapter 3 explores the relationship between the page and the music-making that the page enabled and considers these through a study of a uniquely musical paratext—the fermata. Analytic apparatus advanced by both Robert Hatten and Bonnie Blackburn reveals that the concept of markedness as it relates to the visual, oral, and aural aspects of the page allows for all the elements of the page to coalesce in a manner uniquely familiar and meaningful to the devotionally attuned reader/singer of Petrucci's prints.
In analyzing the material and paratextual features of Petrucci's motet prints, this dissertation engages with an array of theoretical, analytical, and historical frameworks. It simultaneously positions Petrucci's prints within a multivalent world of reading, printing, publishing, and singing and ultimately situates the prints within the realm of devotional activities.
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Hartel, Heather A. "Producing Father Nelson H. Baker the practices of making a saint for Buffalo, N.Y. /." Diss., University of Iowa, 2006. http://ir.uiowa.edu/etd/59.
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Silva, Edimar Carmo da. "Perfil material do princ?pio acusat?rio e minist?rio p?blico : implica??es jur?dico-processuais." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2010. http://tede2.pucrs.br/tede2/handle/tede/4826.
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Previous issue date: 2010-03-19A presente disserta??o, vinculada ? linha de pesquisa sistemas jur?dico-penais contempor?neos, trata do princ?pio acusat?rio como aspecto material do devido processo legal e sua repercuss?o nas fun??es do Minist?rio P?blico na persecu??o penal. Por meio de revis?o bibliogr?fica, faz-se um delineamento do devido processo legal conduzido pela estrutura acusat?ria de processo, de modo a possibilitar uma revis?o funcional dos atores p?blicos envoltos na persecu??o penal. ? apontada uma cultura hist?rico-legalista afinada com o m?todo/ princ?pio inquisitivo na persecu??o penal brasileira, tomada como fator de resist?ncia e n?o aceita??o pr?tica do princ?pio acusat?rio, nada obstante constitucionalmente adotado. A redefini??o das fun??es constitucionalmente fixadas ao Minist?rio P?blico, como tamb?m ao Poder Judici?rio, na persecu??o penal, torna necess?ria uma revis?o da postura pr?tica do ?rg?o titular da a??o penal p?blica. A ado??o do princ?pio acusat?rio em sede constitucional implica rever a (in)compatibilidade procedimental das normas infraconstitucionais, em especial as editadas sob a ordem jur?dica constitucional pret?rita. As possibilidades de concretiza??o do modelo de persecu??o penal conduzido pelo princ?pio acusat?rio, pelo Minist?rio P?blico, repercutem eficazmente no controle de abusos nas atividades pertinentes ao controle externo da atividade policial, ao devido processo atinente ? restri??o cautelar e definitiva de direitos fundamentais, na promo??o da a??o penal p?blica, no ?nus processual probat?rio e na (de)limita??o da interven??o judicial na condena??o. Essa revis?o busca (re)legitimar a restri??o de direito fundamental na perspectiva do Estado Democr?tico de Direito.
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Dalla, Costa Rodolfo Rolim. "Inserção de microcápsulas no processo de impressão a jato de tinta líquida por sistema termoelétrico." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/96397.
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Esse trabalho discute a viabilidade de utilização de impressoras domésticas a jato de tinta líquida por sistema termoelétrico para a inserção de microcápsulas em papel. O procedimento experimental, em etapas, consistiu inicialmente da desmontagem do cartucho termoelétrico e da análise por microscopia óptica e estéreo microscopia. A síntese das microcápsulas poliméricas e cerâmicas ocorreu via polimerização por miniemulsão e sol-gel, respectivamente. A caracterização das partículas foi realizada via microscopia eletrônica de varredura - MEV, espectroscopia por energia dispersiva - EDS, granulometria e espectroscopia de infravermelho por transformada de Fourier - FT-IR. As microcápsulas misturadas em tinta, água deionizada e etanol 99,8% através de agitador magnético e sonda ultrassônica foram analisadas por MEV. As tintas puras e as diferentes misturas, com quantidades específicas de tinta e cápsulas, foram submetidas a testes de densidade relativa, viscosidade, granulometria e FT-IR. Já a caracterização dos papéis deu-se por MEV e EDS. Finalizando o procedimento, a impressão da tinta contendo microcápsulas foi avaliada por MEV e FT-IR. Os resultados demonstraram que as dimensões das partículas estão diretamente relacionadas com o desempenho da impressão. O uso de partículas menores, com tamanho médio de 250 nm, mostrou-se eficiente, posto que a dimensão dos pigmentos em tintas a jato está entre 100 e 200 nm e os orifícios no cabeçote dos cartuchos termoelétricos testados possuem aproximadamente 13,5 μm. Dessa forma, o design de produto pode se beneficiar da aplicação de microcápsulas, com dimensões controladas, pelo processo de impressão termoelétrico em materiais fibrosos, porosos ou ocos.This research discusses the use viability of domestic inkjet liquid printers for thermoelectric system to insert microcapsules in paper. The experimental procedure, in stages, consisted firstly at the disassembly of the thermoelectric cartridge and analysis by optical and stereo microscopy. The polymeric and ceramic microcapsules synthesis occurred by miniemulsion polymerization and sol-gel reaction, respectively. The characterization of the particles was performed by scanning electron microscopy - SEM, energy dispersive system - EDS, granulometry and Fourier transform infrared spectroscopy - FT-IR. The microcapsules blended into paint, deionized water and 99.8% ethanol by ultrasonic probe and magnetic stirrer were analyzed by SEM. The pure inks and the different mixtures with specific amounts of ink and capsules were subjected to relative density, viscosity, granulometry and FT-IR tests. Concomitant, the characterization of the papers was performed by SEM and EDS. As a last stage of the experimental procedure, the impression with ink containing microcapsules was assessed by SEM and FT-IR. The results showed that the particle sizes are directly related to the printing performance. The use of smaller particles with an average size of 250 nm was efficient, since the size of the pigments in ink-jet is between 100 and 200 nm and the holes in the head of the thermoelectric cartridges. The holes are 13.5 μm. Therefore, the product design can take advantage of the application of microcapsules, with controlled dimensions, by thermoelectric printing process, in fibrous, porous or hollow materials.
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Santos, Laryssa Camargo Honorato. "O conceito de organiza??es criminosas : implica??es materiais e processuais ? luz do princ?pio da taxatividade penal." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2010. http://tede2.pucrs.br/tede2/handle/tede/4832.
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Previous issue date: 2010-03-12O debate gerado em torno do conceito de organiza??es criminosas parece infindo. Posi??es doutrin?rias e legislativas divergentes traduzem a extens?o do problema. No ordenamento jur?dico brasileiro, o conceito existente, vindo do artigo 2.? da Conven??o de Palermo, ao ser analisado sob a ?tica do princ?pio da taxatividade, torna-se inaplic?vel em raz?o de sua imprecis?o. Desta maneira, imp?e-se o estabelecimento de par?metros para uma poss?vel operacionaliza??o, par?metros que sejam baseados em elementos precisos, eliminando ao m?ximo a subjetividade do aplicador, tornando assim a configura??o de uma organiza??o criminosa em um caso concreto baseada em aspectos objetivos. Par?metros que, ao serem aplicados, ao inv?s de estender, restringem o ?mbito de incid?ncia do conceito, para apenas aqueles casos em que se faz realmente necess?rio. Desta forma, conseguem eliminar os abusos cometidos quando da sua aplica??o, tanto em ?mbito jur?dico quanto legislativo. Esses podem ser elaborados por meio de um modelo ordinal de conceito, que tem o objetivo de facilitar sua interpreta??o, em que cada dimens?o corresponde aos aspectos objetivos dos elementos contidos no pr?prio conceito elaborado pela conven??o de Palermo. Cada dimens?o deve ser analisada de forma separada, de modo que a n?o configura??o de uma dimens?o implica na n?o configura??o de uma organiza??o criminosa no caso concreto, por serem interdependentes. Ao restringir o ?mbito de incid?ncia do conceito, pode-se evitar confus?es que ocorrem entre organiza??es criminosas, quadrilha ou bando, e criminalidade econ?mica, e os casos em que a sua aplica??o resulta em uma condena??o, indevida, ou em um cerceamento de garantias fundamentais.
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Živko, Pavlović. "Karakterizacija površinske strukture neštampajućih elemenata CtP termalne štamparske forme za ofset štampu." Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2012. http://dx.doi.org/10.2298/NS20120519PAVLOVIC.
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Disertacija daje pregled novih i relevantnih istraživanja i stavovau naučnoj zajednici na temu štamparskih formi i uticaja procesaštampe na trošenje neštampajućih elemenata. U disertaciji jeukazano na kontinualno praćenje topografskih promenaneštampajućih elemenata štamparskih formi kako bi se kontrolisaoperiod eksploatacije a time i proces reprodukcije. Takođe dajeprilog novim istraživanjima sa analizom velikog brojaeksperimentalnih uzoraka sa dobijenim izmerenim podacima iodgovarajućim korelacijama i predstavlja napredak u shvatanjumehanizma trošenja neštampajućih površina štamparskih formi injihov uticaj na tribološke promene u odnosu na strukturu osnovealuminijuma i sloja aluminijum oksida.Dissertation gives an overview of the current state, research and theories ofprinting forms and influence of printing process on wearing of non-printingelements within the science community. The dissertation points out the continuousmonitoring of topographic changes of printing form non-printing elements to controlthe exploitation of a period of time and the process of reproduction. This workcontributes to new research with the analysis of large number of experimentalsamples and calculated correlations and represents an advance in thecomprehension of the surface wear mechanism of printing form non-printingelements and their influence on the tribological changes to the structure of thebase layer of aluminium and aluminium oxide.
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Skelte, Gabrielle. "Enhancing colour development of photochromic prints on textile : Physical stabilisation during UV-radiation exposure." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-12373.
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Textile UV-radiation sensors has lately been introduced to the field of smart textiles. Inkjet printing has been used as means of application due to the effective and resource efficient process. UV-LED radiation curing has been used in combination with inkjet printing in favour of low energy requirements, solvent free solution and reduced risk of clogging in the print heads. The problems arising when exposing photochromic prints to UV-radiations are that oxygen inhibition during the curing and photo-oxidation in the print reduces the prints ability to develop colour. It is the oxygen in the air in combination with UV-radiation that gives the photo-oxidating behavior. The aim of the study is to with the aid of physical protection reduce the effect of oxygen inhibition and photo-oxidation in the prints. Three types of physical treatments were used, wax coating, protein based impregnation and starch based impregnation. Treatments were applied before curing as well as after curing and the colour development after activation during 1 min of UV-radiation was measured with a spectrophotometer. Multiple activations were also tested to see how the treatments affected the fatigue behaviour of the prints over time. The aim was to have as high colour development as possible reflecting reduced oxygen inhibition and photo-oxidation. Results showed significantly higher colour development for samples treated with wax and whey powder before curing, but reduced colour development for amylose impregnation. Over time whey powder before curing showed highest colour development due to highest initial colour development. Lowest fatigue was seen for washed samples containing the chemical stabiliser HALS, showing an increased colour development. In reference to earlier studies the protective properties of wax and whey powder is due to their oxygen barrier properties protecting the print. The tested treatments have shown that it is possible to reduce the effect of photo-oxidation during curing leading to prints giving higher colour development. This gives a great stand point when improving existing and future application of photochromic prints on textiles.
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Tatsch, Ricardo Lu?s Lenz. "O princ?pio da proibi??o de retrocesso social na Constitui??o Brasileira : sede material, aplica??o e limites." Pontif?cia Universidade Cat?lica do Rio Grande do Sul, 2017. http://tede2.pucrs.br/tede2/handle/tede/7744.
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In a globalized society, which is in an accelerated and constant modification, social rights, more than ever, are being object of permanent attacks. On the other hand, we see an increasingly use the principle of irreversibility of social conquests in Brazilian law and for this reason we need to show where your seat material on brazilian Constitution of 1988, as well as how to give your use. Thus, we defend the principle of irreversibility of social conquests as a principle implied that arises from the proper structure of the social rights provided in the Constitution. And when we use it, the principles of reliable protection and the prohibition of discrimination must help, which should not have been violated by the rule or act that caused the social setback, beyond the criterion of proportionality and required the preservation of the essential core of fundamental right involved and the existential minimum.
Em uma sociedade globalizada e que est? em acelerada e constante modifica??o, os direitos sociais, mais do que nunca, est?o sendo objeto de ataques permanentes. Em contrapartida, vemos cada vez mais ser utilizado o princ?pio da proibi??o de retrocesso social no direito brasileiro, motivo pelo qual temos como necess?rio apresentar onde reside a sua sede material na Constitui??o brasileira de 1988, al?m de como deve se dar sua utiliza??o. Assim, defendemos o princ?pio da proibi??o de retrocesso social como sendo um princ?pio impl?cito, que decorre da pr?pria estrutura dos direitos sociais previstos na Constitui??o. E quando da sua utiliza??o, ele deve ser auxiliado pelos princ?pios da prote??o de confian?a e da proibi??o de discrimina??o, os quais n?o devem ter sido violados pela norma ou ato que causou o retrocesso social, al?m do crit?rio da proporcionalidade e da necess?ria a preserva??o do n?cleo essencial do direito fundamental envolvido e do m?nimo existencial.
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Lyons-McFarland, Helen Michelle. "Literary Objects in Eighteenth-Century British Literature." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1528822296580542.
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Nitikasetsoontorn, Passawalee. "The integration of print, radio and television material in tertiary distance learning courses with reference to the Open University (United Kingdom) and Sukothai Thammathirat Open University (Thailand)." Thesis, University of Stirling, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388478.
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Henrysson, Martina. "Experimentell studie på kostnadseffektiva inkjetbestrykningspigment." Thesis, Högskolan Dalarna, Grafisk teknik, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:du-1352.
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The objective of this study was to evaluate and compare the print performance of some of the new most promising, cost effective absorbent pigments specialised for inkjet coatings on the market in a continuous drive to find an alternative to silica. The target was a lower production cost for ArjoWiggins inkjet products, OMD 01 and OMD 02. Five absorbent pigments are being evaluated through measuring the qualities of the coating mix itself, visual evaluations of print performance and physical testing of the coated paper. Pigments 1,2 and 3, which all are said to be tailored for inkjet coatings, did not reach the print performance needed for an OMD 01 and OMD 02 equal, due to severe bleed and feathering identified especially on the Epson 950 printer. They are therefore currently not seen as viable formulations. A blend of 50% pigment 5 and 50% silica had excellent print performance as OMD 01 and OMD 02 equivalents and is therefore recommended as a potential alternative to 100% silica. It is of the company’s interest to find a more cost effective solution to their inkjet coatings, and a 50/50 blend of Pigment 5 will save the company more than 35 000 euro per year.
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Dirks-Schuster, Whitney Marie. "Monsters, News, and Knowledge Transfer in Early Modern England." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1377008746.
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Mudrák, Michal. "Analýza mechanických vlastností kompozitních materiálů vytisknutých aditivní technologií 3D tisku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-444288.
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This thesis deals with the analysis of mechanical properties of composite materials used for 3D printing by Markforged company. The theoretical part is focused on the characterization of composite materials and analysis of mechanical tests. The experimental part deals with the production of test specimens for specific mechanical tests (tensile test, Shore D hardness test and bending test). The test sapples with Onyx base material are individually reinforced with carbon and high-temperature glass fibers (HSHT). There are statistically evaluated selected parameters for individual mechanical tests (tensile strength, elongation, modulus of elasticity, Shore D hardness, bending stress and bending deformation). The thesisis completed by comparing selected parameters of composite materials with overall recommendations for users.
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Carvalho, Andr?? Lu??s de. "O princ??pio da transpar??ncia fiscal sob o aspecto material: a consolida????o nacional das contas p??blicas e a integridade do endividamento p??blico." Universidade Cat??lica de Bras??lia, 2016. https://bdtd.ucb.br:8443/jspui/handle/tede/2252.
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The fiscal principle of transparency materials imposes risk prevention and correction of deviations that may affect the balance of public accounts, ensuring the integrity of public finances. Brazil should pay attention, as well, not just for the mere publication of public accounts for the formal disclosure of tax information, but also for the maintenance of public debt integrity for sustainability materials of public finances, ensuring the welfare socioeconomic for generations present and future.
O princ??pio fiscal da transpar??ncia material imp??e a preven????o dos riscos e a corre????o dos desvios capazes de afetar o equil??brio das contas p??blicas, assegurando a integridade das finan??as p??blicas. O Brasil deve atentar, assim, n??o apenas para a mera publicidade das contas p??blicas pela formal divulga????o das informa????es fiscais, mas tamb??m para a manuten????o da integridade do endividamento p??blico pela material sustentabilidade das finan??as p??blicas, garantindo o bem-estar socioecon??mico para as gera????es presentes e futuras.
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Lee, Francis Melvin. "Instruir de maneira intensa e imediata: circulação e uso de estampas no Brasil joanino." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/8/8138/tde-12052015-125408/.
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Este trabalho investiga a circulação e o uso de imagens bidimensionais no Rio de Janeiro do período joanino (1808-1821), principalmente as impressas, produzidas nacionalmente ou importadas da Europa. A principal fonte para a pesquisa foram os anúncios e notícias publicadas nas mais de 1.850 edições da Gazeta do Rio de Janeiro, primeiro periódico impresso no Brasil e que circulou de 1808 a 1822. Este levantamento foi combinado com os estudos já existentes sobre a História da Cultura, História da Arte e Cultura Material para o período.This study explores questions regarding the use and the circulation of bidimensional images in Rio de Janeiro during Dom João VI Brazilian period (1808-1821), with focus on engraved and printed images, locally produced or imported from Europe. The main sources were the advertisements published in more than 1.850 editions of Gazeta do Rio de Janeiro (1808-1822), the first periodic printed in the country. This survey brings together subfields as the Cultural History, Art History and Material Culture studies for this period.
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Avenel, Judith. ""Si tu meurs, je te tue". Temps, absence et mémoire." Thesis, Bordeaux 3, 2017. http://www.theses.fr/2017BOR30052.
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Le fragment du corps moulé, le corps qui s’effondre, réduit à une dépouille, la figure qui tend à s’effacer, se regardent comme les bribes d’une mémoire où coexiste un double mouvement : le contact et la séparation, la présence et l’écart. L’empreinte du corps en creux, signale que rien ne sera plus jamais comme avant. Le moulage dit ce qui est. Il dit le « mort » par son empreinte vivante : ce que j’ai moulé, photographié cet « incomparable air de vie » a disparu. Irrémédiablement. Pièces à conviction qui calment la perte, les fragments, le travail parfois sériel conspirent contre l’oubli, attestent d’un passage et d’une présence dont je refuse qu’ils passent, s’effacent. La séparation définitive est insupportable. C’est dans la présence de la figure déposée, devenu fragment de mémoire et dans son absence que se dialectise alors l’inacceptable et devient possible son acceptation. L’impossibilité de ralentir le cycle du temps impose toujours le sentiment d’une urgence. Mon travail est résistance. Il pose un regard mélancolique sur les choses qui changent, passent, nous échappent. Rien ne s’arrête, rien n’est défini de façon satisfaisante. C’est une réalité qui se fait à travers celle qui se défait. Une avancée se noue sur ce qui s’use ou se troue. Faire contrepoids à cette ombre omniprésente. Choisir dans les différentes ouvertures possibles, à travers le cortège des images, des figures, des choses obsédantes et trouver, provisoire, fragile et lacunaire, une réponseThe fragment of a moulded body, the body which collapses, is reduced to a corpse,the figure which tends to disappear, can be seen like pieces of a memory in which a double movement co-exists : the contact and the separation, the presence and the gap. The print of the body in hollow shows that nothing will never be like before anymore. The moulding says what exists. It says « the dead » by its living print : what I have moulded, photographed, this « incomparable air of life » disappeared. Irredeemably. Exhibits which calm the loss, the fragments, the work in series conspire against oblivion, prove the passage and a presence I refuse them to disappear. The definitive separation is unbearable. It is in the presence of the figure that I exhibit, which has become « fragment of memory » and in its absence that dialectises then in the unacceptable and its acceptance has become possible. The impossibility to slow down the cycle of time always imposes the feeling of urgency. My work is resistance. It poses a melancholic look on the things that change, pass away and that aren’t under control. Nothing stops, nothing is defined in a satisfactory way. It is a reality which is made through the one that unties. An advance ties on what is worn up or what bores a hole. Counterbalancing.this omnipresent shadow. Choosing in the different possible openings throughout a cortege of images, figures, obsessive things and finding a provisional, fragile, incomplete answer
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Peris, Abad Fernando. "Desarrollo de materiales compuestos mediante la modificación de matrices de polipropileno por adición de nanofibras de carbono y nanotubos de carbono para su utilización en el sector textil." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/165209.
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[ES] Los Nanotubos (CNTs) y Nanofibras de Carbono (CNFs) son materiales de nueva generación que tienen características mejores que los materiales convencionalmente utilizados. Los Nanotubos están formados por carbono, siendo su unidad elemental un plano de grafito enrollado cilíndricamente creando tubos de diámetro nanométrico. Por otro lado, las Nanofibras son materiales intermedios entre las habituales fibras de carbono y los CNTs, las cuales se han desarrollado con la finalidad de obtener fibras de carbono nanométricas y pudiendo reemplazar a los CNTs, de una forma más económica y pudiéndose obtener en grandes cantidades. Todo ello, ha llevado a que estos materiales susciten grandes intereses como consecuencia de sus variadas aplicaciones posibles, provocando que se haya trabajado en optimizar y trasladar su proceso de
producción a nivel industrial y cada día sean más atractivos.
La conveniencia de utilizar estos productos radica en sus excelentes propiedades mecánicas, alta conductividad térmica y eléctrica, así como buena estabilidad a altas temperaturas. Todo ello hace que este tipo de materiales sea muy interesante para ser empleado como refuerzo en matrices termoplásticas. Sin embargo, los materiales compuestos que se ha conseguido obtener hasta la fecha presentan unas propiedades muy inferiores a las inicialmente esperadas, debido a la naturaleza de los materiales y la elevada incompatibilidad existente entre la matriz polimérica y el nano-refuerzo. Ésta provoca la aglomeración de las partículas y la formación de una interfase polímeronanopartícula de malas propiedades mecánicas, donde la transferencia de tensión entre la matriz y el refuerzo no es efectiva.
En busca de alternativas a esta problemática, el presente trabajo trata de evaluar como evolucionas distintas propiedades, como las mecánicas, térmicas, reológicas y/o eléctricas, en los materiales desarrollados tras la incorporación de distintas cantidades tanto de CNFs como de CNTs a una matriz de Polipropileno, mediante un proceso de mezclado en fundido o compounding.
En un último estudio, se ha analizado cómo evolucionan las propiedades eléctricas o antiestáticas de estos materiales al ser sometidos a subsiguientes procesados con aportes térmicos (Tª) como son la extrusión de monofilamento y la posterior impresión 3D del mismo, para transformarse en una pieza final.[CA] Els Nanotubs (CNTs) i Nanofibres de Carboni (CNFs) són una nova generació de materials que presenten unes propietats superiors als materials convencionalment utilitzats. Els CNTs són uns materials formats per carboni, on la unitat bàsica és un pla grafític enrotllat que forma un cilindre, formant uns tubs el diàmetre dels quals és de l'ordre d'alguns nanòmetres. Les CNFs per part seua, es consideren com a materials intermedis entre les fibres de carboni convencionals i els CNTs, desenvolupades a fi de produir unes fibres de carboni de grandària nanométrica alternatives als nanotubs, més econòmiques i amb la possibilitat de ser produïdes en grans volums. Tot això, ha portat al fet que aquests materials susciten grans interessos a causa de les seues múltiples possibles aplicacions, provocant que s'haja treballat a optimitzar i traslladar el seu procés de producció a nivell industrial i cada dia siguen més atractius. La conveniència d'utilitzar aquests productes radica en les seues excel·lents propietats mecàniques, alta conductivitat tèrmica i elèctrica, així com bona estabilitat a altes temperatures. Tot això fa que aquest tipus de materials siga molt interessant per a ser emprat com a reforç en matrius termoplàstiques. No obstant això, els materials compostos que s'ha aconseguit obtindre fins hui presenten unes propietats molt inferiors a les inicialment esperades, a causa de la naturalesa dels materials i l'elevada incompatibilitat existent entre la matriu polimèrica i el nano-reforç. Aquesta provoca l'aglomeració de les partícules i la formació d'una interfase polímer-nanopartícula de baixes propietats mecàniques, on la transferència de tensió entre la matriu i el reforç no és efectiva. A la recerca d'alternatives a aquesta problemàtica, el present treball tracta d'avaluar com evoluciones diferents propietats, com les mecàniques, tèrmiques, reològiques i/o elèctriques, en els materials desenvolupats després de la incorporació de diferents quantitats tant de CNFs com de CNTs a una matriu de Polipropilè, mitjançant un procés de barrejat en fos o compounding. En un últim estudi, s'ha analitzat com evolucionen les propietats elèctriques o antiestàtiques d'aquests materials en ser sotmesos a subsegüents processaments amb aportacions tèrmiques (Tª) com són l'extrusió de monofilaments i la posterior impressió 3D d'aquest, per a transformar-se en una peça final.
[EN] Nanotubes (CNTs) and Carbon Nanofibers (CNFs) are a new generation of materials that present superior properties to conventionally used materials. CNTs are materials made of carbon, where the basic unit is a rolled graphite plane that forms a cylinder, forming tubes whose diameter is of the order of a few nanometres. For their part, CNFs are considered as intermediate materials between conventional carbon fibres and CNTs, developed in order to produce nano-sized carbon fibres that are alternatives to nanotubes, cheaper and with the possibility of being produced in large volumes. . All this has led to these materials arousing great interest due to their multiple possible applications, causing work to be done to optimize and transfer their production process to an industrial level and become more attractive every day. The convenience of using these products lies in their excellent mechanical properties, high thermal and electrical conductivity, as well as good stability at high temperatures. All this makes this type of material very interesting to be used as reinforcement in thermoplastic matrices. However, the composite materials that have been obtained to date have much lower properties than those initially expected, due to the nature of the materials and the high incompatibility between the polymeric matrix and the nanoreinforcement. This causes the agglomeration of the particles and the formation of a polymer-nanoparticle interface with poor mechanical properties, where the transfer of tension between the matrix and the reinforcement is not effective. In search of alternatives to this problem, this work tries to evaluate how different properties evolve, such as mechanical, thermal, rheological and / or electrical, in the materials developed after the incorporation of different amounts of both CNFs and CNTs to a matrix. Polypropylene, through a melt mixing process or compounding. In a last study, it has been analysed how the electrical or antistatic properties of these materials evolve when subjected to subsequent processing with thermal inputs (Tª) such as the extrusion of monofilament and the subsequent 3D printing of it, to become a final piece .
Peris Abad, F. (2021). Desarrollo de materiales compuestos mediante la modificación de matrices de polipropileno por adición de nanofibras de carbono y nanotubos de carbono para su utilización en el sector textil [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/165209
TESIS
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Čáslavský, František. "Zkoušky vybraných vlastností materiálů pro 3D tisk." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400683.
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This thesis deals with 3D printing, materials used for 3D printing, testing of the materials and learning their real parameters. Goal of the thesis is comparing selected materials, executing series of mechanical test and selecting suitable material for printing high-quality plastic parts for use in automobiles, especially for reproduction of parts that are no longer made for oldtimers and for use in motorsport.
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Bendzovski, Daniel. "Trend-sandwich : Exploring new ways of joining inspiration, such as different kinds of trends, through processes of morphing and melding different trendy garments and materials, for new methods, garment types, materials and expressions." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-248.
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The aim of this work is to explore the joining of inspiration, such as different garments and materials, in relation to commonly used methods in the fashion industry when it comes to joining of different trends and references such as clashing and collaging. The work proposes a new method and framework for join- ing inspiration which generates different results depending on what kind of inspiration that is put in to it. A garment can roughly be broken down to a silhouette and shape, materials and details. The material put in to the method and framework is based on information from trend seminars for SS16, because that is how many of today’s trend-oriented fashion brands get there inspiration. Trendy garment silhouettes are mixed through processes of computational morphing in Adobe Flash by a generation of spin in the mixing process were shape hints are used in a new manner. The new generated silhouettes are further developed and materialized through procedures of interpretation and figuration. Different trendy materials are melded in a direct and concrete way through mixed media techniques such as laminating, fusing and vacuum-techniques. The final steps of the method is a garment shape and material synthesis with starting point in the generated shape with the final material. The projects intention is to let the physical experimentation, interpretation and figuration play a central role in the research process for new types of methods, garments, materials and expressive pos- sibilities.
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Persson, Matilda. "Materializing." Thesis, KTH, Arkitektur, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231952.
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Williams, Dennis II. "Portraiture and Text in African-American Illustrated Biographical Dictionaries, 1876 to 1917." VCU Scholars Compass, 2014. http://scholarscompass.vcu.edu/etd/3666.
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Containing portraiture and biography as well as protest text and affirmative text, African- American Illustrated biographical dictionaries made from 1876 to 1917 present Social Gospel ideology and are examples of Afro-Protestantism. They are similar to the first American illustrated biographical dictionaries of the 1810s in that they formed social identity after national conflict while contesting concepts of social inferiority. The production of these books occurred during the early years of Jim Crow, a period of momentous change to the legal and social fabric of the United States, and because of momentous changes in modern American print industries. While portraits within the books simultaneously form, blur, and stabilize identity, biographies convey themes of perseverance, social equity, and social struggle. More specifically, text formed an imagined community in the African-American middle class imaginary. It worked together with image to help create a proto-Civil Rights social movement identity during the beginning of racial apartheid.