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Yang, Xiaoyan. "Dynamic simulation of 3D weaving process." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/18970.
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Doctor of PhilosophyDepartment of Mechanical and Nuclear Engineering
Youqi Wang
Textile fabrics and textile composite materials demonstrate exceptional mechanical properties, including high stiffness, high strength to weight ratio, damage tolerance, chemical resistance, high temperature tolerance and low thermal expansion. Recent advances in weaving techniques have caused various textile fabrics to gain applications in high performance products, such as aircrafts frames, aircrafts engine blades, ballistic panels, helmets, aerospace components, racing car bodies, net-shape joints and blood vessels. Fabric mechanical properties are determined by fabric internal architectures and fabric micro-geometries are determined by the textile manufacturing process. As the need for high performance textile materials increases, textile preforms with improved thickness and more complex structures are designed and manufactured. Therefore, the study of textile fabrics requires a reliable and efficient CAD/CAM tool that models fabric micro-geometry through computer simulation and links the manufacturing process with fabric micro-geometry, mechanical properties and weavability. Dynamic Weaving Process Simulation is developed to simulate the entire textile process. It employs the digital element approach to simulate weaving actions, reed motion, boundary tension and fiber-to-fiber contact and friction. Dynamic Weaving Process Simulation models a Jacquard loom machine, in which the weaving process primarily consists of four steps: weft insertion, beating up, weaving and taking up. Dynamic Weaving Process Simulation simulates these steps according to the underlying loom kinematics and kinetics. First, a weft yarn moves to the fell position under displacement constraints, followed by a beating-up action performed by reed elements. Warp yarns then change positions according to the yarn interlacing pattern defined by a weaving matrix, and taking-up action is simulated to collect woven fabric for continuous weaving process simulation. A Jacquard loom machine individually controls each warp yarn for maximum flexibility of warp motion, managed by the weaving matrix in simulation. Constant boundary tension is implemented to simulate the spring at each warp end. In addition, process simulation adopts re-mesh function to store woven fabric and add new weft yarns for continuous weaving simulation. Dynamic Weaving Process Simulation fully models loom kinetics and kinematics involved in the weaving process. However, the step-by-step simulation of the 3D weaving process requires additional calculation time and computer resource. In order to promote simulation efficiency, enable finer yarn discretization and improve accuracy of fabric micro geometry, parallel computing is implemented in this research and efficiency promotion is presented in this dissertation. The Dynamic Weaving Process Simulation model links fabric micro-geometry with the manufacturing process, allowing determination of weavability of specific weaving pattern and process design. Effects of various weaving process parameters on fabric micro-geometry, fabric mechanical properties and weavability can be investigated with the simulation method.
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Jetavat, Dhavalsinh. "Near net shape preforming by 3D weaving process." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/near-net-shape-preforming-by-3d-weaving-process(bb697182-f424-480b-963a-dc49b84425c6).html.
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Significant proportion of composite industry is currently produced using prepregs, cured in autoclave which is very expensive and time consuming process. Dry textile preforms in conjunction with liquid molding techniques can lead to significant reductions in material costs, manufacturing costs and cycle times. These dry preforms are typically 2D woven or braided fabrics which also required lay-up and have low interlaminar properties. Through thickness reinforcement provides solution for this problem as it gives better interlaminar properties as well as near net shape performing. Various 3D performing methods are discussed and reviewed in this research where 3D weaving comes out as ideal process to develop near net shape preforms with more efficiency and better material performance. This research highlights the advantages and limitations of conventional 3D weaving processes. A number of approaches for improving the flexibility of 3D weaving process have been presented including changing fiber architecture in different sections of the preform, tapering in the width and thickness directions and finally to change the fiber orientation. It is concluded that multi step and taper fabrics can be produced on conventional weaving by some modifications. Furthermore, a novel 3D weaving machine is designed and developed after reviewing various patents and weaving methods to overcome limitations of conventional weaving machine. Key criterions from limitations of conventional weaving processes are considered and modified such as multiple weft insertion, limited warp stuffer movement, linear take-up to develop 3D weaving machine. In order to achieve isotropic material, two textile technologies are combined to get final requirements. 3D weaving can provide us fibres in 0° and 90° direction with through thickness reinforcement, whereas braiding can satisfy the requirement of bias direction fibres. Near net shape preforms such as taper and multistep are produced and laminated. Preliminary testing is performed on these laminates to evaluate fibre architectures. Further work is required in terms of machine modification which can provide weave design flexibility to explore various multilayer weave architectures. Thorough testing is required to evaluate and define structure performance and effect of fibre damage during weaving process.
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Zhao, Ruijie. "Weaving Web 2.0 and the Writing Process with Feminist Pedagogy." Bowling Green State University / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1276676479.
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Chen, Yi-Fang. "Rush-weaving in Taiwan : perceptions of the environment and the process of becoming heritage." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/7925.
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This thesis is based on fieldwork carried out among weavers of rush-woven objects in rural Taiwan. In this thesis, I argue that nowadays rush-weaving is good work, though not good labour, for the weavers, and the social logic of Yuanli rush-weaving lies in the process of craft production. It is an ethnographic investigation into the practice of rush-weaving in association with colonialism, the heritage movement, and museum operation. Firstly, this thesis examines the economics and history and practice of craft production, in order to understand how the craft industry has become what it is and what is embedded in the process of production. The skill-based knowledge required of weavers is embedded in the relationship between a weaver and her environment. While this fundamental characteristic remains, new meanings and uses are attached to craft practice and the objects produced. Secondly, this thesis explores the process by which craft production is involved in the heritage and museum movement in contemporary Taiwan, so as to understand the interrelationship between craft production and the movement. I consider how ideas of tradition, heritage, and museums are perceived and enacted in everyday life, and find that these ideas contain contradictions and have different meanings for insiders and outsiders. The analysis as a whole seeks to explain why artisans keep weaving in contemporary society, and that it must be understood in terms of their continuous reaction to the constant transformation that the rush-weaving industry has undergone, which is reflected in the relationship between artisans and their objects in the process of production. The thesis addresses current issues – which are both fiercely contested in events and policies, and marginalised in everyday life – in Taiwan, but also attempts to contribute to the anthropological perspective on knowledge in practice, technology and social logics, past and present, and tradition and innovation.
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Gäfvert, Josefin. "Utfläkt på ditt golv (exposed on your floor)." Thesis, Konstfack, Textil, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-7813.
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In this paper I have investigated the role of the weaver, from my own perspective as a weaver. I have discussed weaving in relation to function and painting, and how the weaving process and the collaboration with the loom have a great impact on what I create. I have found it difficult to believe in the future as a weaver, and with this project I wanted to find a meaning with weaving that I can lean on. All five weaves are woven on the same warp, I call it a warp family. Every weave is a try and a failure to weave a rug. Instead they have all turned into different characters, portraying my ongoing struggle with, and love for, the warp. I’ve come to the conclusion that for me the rug is a symbol for honesty in making, and that it’s function is to remind us about values that often are neglected. The visible process, the human presence, is then more important than aspects like functionality or perfection.
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Adam, Noor Aishikin. "Weaving culture and mathematics : an evaluation of mutual interrogation as a methodological process in ethnomathematical research." Thesis, University of Auckland, 2011. http://hdl.handle.net/2292/6654.
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This thesis discusses an attempt to implement the methodology of mutual interrogation in an ethnomathematical research study. Mutual interrogation was proposed by Alangui (2010) as a way of resolving issues of ideological colonialism and knowledge decontextualisation in investigations of mathematical knowledge in cultural practice. The process involves implementing a critical dialogue between holders of a specific cultural knowledge domain and mathematicians in order to investigate the interactions that occur between their knowledge systems, and to look at how the diverse ways of thinking about quantities, relationships and space can help broaden or transform our conception of mathematics. The thesis describes an adaptation of the above methodology to a study of food cover (tudung saji) weaving among the weavers of Malaysia. These conical-shaped covers are woven using a specific technique called triaxial or hexagonal weave, where the strands are interlaced in three directions. A three-phase dialogue between several weavers and mathematicians was implemented, with the researcher playing the role of the mediator. Ethnographic techniques of participant observation, audio and video recording, field notes and interviews (both unstructured and semi-structured) were employed to document the dialogue and explore weaving limitations and possibilities. A computer-generated weaving template was also created to mediate investigations. The interactions between the conventions of the weavers and the concepts of the mathematicians uncovered differing perspectives on the construction of the tudung saji and the use of the template. The research findings highlight the role of mutual interrogation in establishing communication between the knowledge systems and the practitioners. Furthermore, mutual interrogation both affected the contemporary practices of the weavers and drew the mathematicians' attention to the way the process of interpreting a cultural activity can lead to the invention of new mathematical structures.
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Zhu, Jia. "Weaving language and culture together : the process of culture learning in a chinese as a foreign language classroom." Diss., University of Iowa, 2012. https://ir.uiowa.edu/etd/3418.
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This dissertation is a qualitative case study exploring the process of culture learning in a Chinese as a foreign language (CFL) classroom. Guided by a socioculturally based theoretical perspective and adopting the stance of the National Standards, which says that language students "cannot truly master the language until they have also mastered the cultural contexts in which the language occurs" (1996, p. 27), this study describes how culture learning is tied to class practices aimed at developing students' language proficiency by exploring how culture and language are integrated in spoken discourse and interactions in the classroom.
The research questions of the study focus on both the instructor's and the students' perspectives towards the interrelationship between language learning and culture learning and their actual practices in the dynamic, complex, and emerging speech community of classroom contexts. Through analysis of student questionnaires, classroom observations, instructor interview, and stimulated-recall sessions with students, this study examines the contexts of culture learning, illustrates how language classroom contexts shape and are shaped by all the class members, including both the instructor and the students, and describes how the classroom spoken discourse in the current advanced-level undergraduate CFL course provides opportunities for culture learning and how culture learning actually happens in this language classroom.
The findings suggest that as the instructor and the students interact in the language classroom, it is not so much the particular pieces of cultural and linguistic information under discussion that delineate the actual culture learning process, but rather the active exchanges and sometimes disagreements between the instructor and the students that provide opportunities for interactive cultural dialogues and discussions. In other words, cultural knowledge and understanding are situated in actual contexts of language use. Language learning is also embedded in the same interactive and collaborative discussion of texts. By exploring the complexity of the culture learning process in the language classroom setting, this study adds theoretical and pedagogical support to the premise that culture learning should be an integral part of language instruction at different levels throughout the language curriculum.
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Koh, Yee Sing. "Weaving the right guanxi : a study of the role of social networks in the job search process in Hong Kong /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?SOSC%202002%20KOH.
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Jakel, Miriam Sari. "Youth weaving networks beyond community borders : lessons learned from Caja Lúdica, a community arts process and networking initiative in Guatemala." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/youth-weaving-networks-beyond-community-borderslessons-learned-from-caja-ludica-a-community-arts-process-and-networking-initiative-in-guatemala(ab0f6ec2-9a85-49e7-b3dc-23058a0b18ad).html.
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This thesis examines a youth community arts network and Caja Lúdica, one of its founder organisations, in post-conflict Guatemala, and argues that they not only temporarily create spaces of encounter and community but through their networking and exchange strategies have established a rhizomatic assemblage of practice characterised by its perseverance and its dispersed agency in different parts of the country. As such, the thesis asks the following main three questions: What are the practices of Caja Lúdica and the Community Arts Network in Guatemala; what are youth protagonists’ experiences; and what contribution can their practices make to debates on community arts in challenging environments but also in other parts of the world? By using Deleuze and Guattari’s rhizome theory it highlights notions of networking, local protagonism and collectivity asks for more sustainable practice with youth and by introducing these terms into performance and community arts scholarship, where they are scarcely explored, it makes a critical contribution to these fields. A methodological approach based on rhizomatic notions has fostered the connection of a wide range of methods such as semi-structured interviews, participant observation, ‘following’ as a research method as well as photography, the latter two of which have been developed for researching this particular networking practice in Guatemala. By using a selected set of case studies, this investigation aims to grasp the diversity and dynamics of this practice, in particular its movement and expansion across community borders through its youth protagonists. These case studies include the exploration of a local youth group and their exchange activities as well as the observation of the Network’s collective rituals and public interventions. By doing so this thesis aims to emphasise the potential of youth as creative protagonists in challenging contexts and stresses the importance to further examine their potential and ability to resist marginalisation and contribute to the reconstruction of the social fabric in war-affected communities and beyond. It further proposes that a networking and more holistic approach to practice can foster more sustainable community arts processes, not just in terms of decreasing external funding dependency and determination, but also to establish a practice culture in and between initiatives based on collectivity, exchange and support, which becomes more important in times of austerity.
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Decrette, Mathieu. "Tissage Jacquard : étude de paramètres et optimisation du tissage 3D haute densité." Thesis, Mulhouse, 2014. http://www.theses.fr/2014MULH7952.
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La technique du tissage consiste à créer un entrecroisement de fils perpendiculaires entre eux. Pour cela, il est nécessaire d'insérer un fil de trame à travers une nappe de fils de chaîne parallèles. L'étape de formation de la foule, consistant à séparer la nappe de chaîne pour libérer un espace d'insertion, est vecteur d'interactions interfilamentaires et de dommages induits dans la structure filamentaire. Un tel phénomène, rapporté au tissage de renforts de matériaux composites produit des dégradations de structure importantes et une diminution sensible des propriétés mécaniques du produit fini. Dans le contexte de la croissance du marché des matériaux composites haute performance à renforts tissés, il est nécessaire d'améliorer puis de maîtriser le procédé de tissage. Ainsi, pour optimiser le tissage d'étoffes multicouches à haute densité, nous disposons d’une machine Jacquard. Il s'agit d'une technique qui permet un pilotage individuel motorisé des fils de chaîne et qui offre des paramètres de foule particuliers. Le but de ces travaux sont d'étudier ces paramètres d'une part et de définir et analyser leurs effets sur le processus de tissage par ailleurs. Nous utilisons pour ces travaux du polyester multifilamentaire, ainsi qu'un dispositif de tissage particulier adapté au tissage technique multicouches. Nous constatons que le tissage multicouches de forte densité génère de nombreux frottements interfilamentaires qui dégradent les fils en provoquant de la fibrillation. L'observation de l'évolution de ce phénomène selon les différents paramètres Jacquard, permet tout d'abord de mieux le comprendre et le cerner. Elle permet ensuite de déterminer les configurations de tissage optimales pour assurer la qualité du tissage de renforts tissésWeaving basic structure is an orthogonally interlaced yarns plane, produced thanks to weft insertion across parallel warp yarns. Shedding is a major step for shed generation by warp yarns separation. Shedding may generate warp yarns interactions and yarn structure degradations because of density. Such a phenomenon becomes major with composite high density woven reinforcement where degradations and final product mechanical properties loss may become considerable. With high performance composites market growth, weaving process needs to be improved.A Jacquard shedding mechanism has been employed for high density multilayer woven fabric weaving optimization, as this technique enables warp yarns individual motorized driving with very particular shedding parameters. In this research, Jacquard shedding parameters have been studied so that their effects on the weaving process may be brought to light, with a specific weaving machine dedicated to multilayer weaving, where polyester multifilament yarns are used.It has been observed that high density multilayer weaving produces friction and many degradations during shedding between filaments because of the fibrillation phenomenon. Fibrillation has been examined and understood thanks to the observation of its evolution according to Jacquard shedding parameters. It has been the basis for optimal weaving parameter configurations which may be used for woven reinforcements composites quality improvement
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Vilfayeau, Jérôme. "Modélisation numérique du procédé de tissage des renforts fibreux pour matériaux composites." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0026/document.
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L'industrie aéronautique doit faire face aux nouvelles exigences environnementales, tout particulièrement concernant la réduction de la consommation des énergies fossiles. L'utilisation de matériaux composites plus léger permet de répondre en partie à cette attente. Pour limiter les coûts lors de la fabrication et du développement des composites à renforts tissés 3D, il est nécessaire d'utiliser des outils de simulation performants. En particulier, les outils existants, qui discrétisent à une échelle mésoscopique l'architecture des tissus 3D, ne tiennent pas compte de l'influence du procédé de fabrication sur la constitution de la structure textile. Si des outils numériques dédiés à la modélisation du procédé de tressage et de tricotage sont disponibles, il n'en est rien concernant le tissage. Cette étude avait donc pour but de s'intéresser plus particulièrement à la simulation du prodécé de tissage pour pouvoir obtenir une structure de tissu sèche déformée numériquement. La production de différentes architectures de tissu en verre E dans notre laboratoire nous a permis d'observer les différents éléments en contact avec le fil ou le tissu sur la machine à tisser, par le biais de l'utilisation d'une caméra rapide par exemple. Le développement d'un modèle numérique par éléments finis reproduisant le procédé de tissage a été réalisé. Une loi de comportement isotrope transverse fut utilisée pour modéliser les fils de verre. Des premières simulations numériques encourageantes pour la fabrication d'un tissu d'armure toile et d'un tissu d'armure croisé 2-2 sont présentées et comparées avec les tissus réels produits correspondantsThe aeronautical industry faces new challenges regarding the reduction of fossil fuel consumption. One way to address this issue is to use lighter composite materials. The ability to predict the geometry and the mechanical properties of the unit cell is necessary in order to develop 3D reinforcements in composite materials for these aeronautical applications. There is a difficulty to get realistic geometries for these unit cells due to the complexity of their architecture. Currently, existing tools which model 3D fabrics at a meso scale don't take into account manufacturing process influence on the shape modification of the textile structure. There is already some numerical tools that can model the braiding or knitting process, but none have been developed for weaving so far. Consequently, this study deals with the numerical simulation of the weaving process to obtain a deformed dry fabric structure. During the weaving process of E-glass fabrics, achieved in our laboratory, it has been observed that large deformations led to the modification of transverse section of meshes, or local density changes, that can modify the fabrics mechanical resistance. For this reason, a numerical tool of the weaving process, based on finite element modelling, has been developped to predict these major deformations and their influences on the final textile structure. The correlation between numerical results and fabrics produced with glass fibres has been achieved for plain weave and 2-2 twill
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Pemberton, Diana Ruth. "The Sacred Transfigured." Kent State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=kent1587732487572178.
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Florimond, Charlotte. "Contributions à la modélisation mécanique du comportement de mèches de renforts tissés à l'aide d'un schéma éléments finis implicite." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0136/document.
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La simulation du procédé de fabrication de renforts fibreux secs est un enjeu majeur pour l’étude de l’élaboration de matériaux composites, dont l’utilisation dans les industries de pointe s’intensifie rapidement. Ainsi, l’influence du métier à tisser sur la qualité des renforts est primordiale dans la caractérisation de leurs propriétés mécaniques. Une campagne d’essais expérimentaux est tout d’abord réalisée, de manière à identifier les phénomènes physiques mis en jeu. Les différents modes de déformation de la mèche sont ainsi étudiés : élongation, compaction, cisaillement et distorsion. Est étudié également le comportement en flexion et en frottement, afin de mieux appréhender l’effet du procédé de tissage sur les mèches. Deux types de lois de comportement élastiques sont envisagés : une loi hypoélastique et une loi hyperélastique. Sont développées les propriétés de chacune d’entre elles, ainsi que les grandeurs caractéristiques nécessaires à leur implémentation dans le logiciel commercial ABAQUS/Standard. Les algorithmes de deux subroutines sont présentés, correspondant à l’une ou l’autre de ces lois. Le choix est fait de modéliser le comportement mécanique de la mèche à l’aide d’une loi hyperélastique isotrope transverse de type St-Venant, par l’intermédiaire de la subroutine ABAQUS/Standard UANISOHYPER_INV. Enfin, une identification des paramètres matériau à l’aide d’une méthode inverse est proposée. Sont comparés les résultats obtenus par simulation avec les résultats expérimentaux. La loi de comportement alors déterminée permet de mettre en place des simulations de procédé de tissageSimulating the manufacturing process of woven preforms is a major stack for understanding the development of composite materials, used in high performance industries. The effect of the weaving loom on the preforms is very important to caracterize their mechanicals properties. Experimental tests are realised to identify the physical phenomenon. Different deformation modes are studied : elongation, compaction, shear and distortion. The bending and friction behavior are also important to understand the effect of weaving process. Two constitutive laws are considered : a hypoelastic law and a hyperelastic law. An analyse of their properties is presented, and their implementation in a commercial software, ABAQUS/Standard, is detailed. In this purpose, two subroutines can be used. The modelisation of the mechanical behavior of the tows is finally realised with a transversely isotropic hyperelastic St-Venant model, with the subroutine ABAQUS/Standard UANISOHYPER_INV. To conclude, an identification method is presented and the simulated results are compared to experimental tests. The obtained consitutive behavior is finally used to simulate the weaving process
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Braga, Lia Regina Gomes. "Estruturas contigentes e formas resguardadas : o tecer como prática inserida no cotidiano." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/97632.
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A presente dissertação, intitulada Estruturas Contingentes e Formas Resguardadas: o tecer como prática artística inserida no cotidiano, propõe a análise do processo de tecitura manual dos objetos que compõem a pesquisa. Ao sistematizar e analisar o processo dos referidos objetos, abordarei as interferências e intercorrências em espaços privados e públicos – experienciados enquanto lugares de atividades cotidianas e do exercício de tecer. Também estarão sob foco as reverberações dessas experiências no atelier e nos modos de exposição.This dissertation, titled Contingent Structures and Withdrawn Shapes: weaving as an everyday art practice, proposes the analysis of the process of hand weaving the objects that make up the research. By systematizing and analyzing the process of said objects, I will approach interferences and events in private and public spaces - experienced as venues for everyday activities and for the act of weaving. Echoes of these experiences in the studio and in exhibition methods will also be addressed.
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Teng, Jhih-Hua, and 鄧治華. "Quality Enhancement of the Multi-stage Weaving Process." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/6an34a.
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碩士國立臺灣大學
工業工程學研究所
107
In a manufacturing industry, defected products often lead to a lot of cost. How to use quality management to improve the production process and maximize the yield is a big issue. Generally, traditional industries with relatively poor quality control methods often adjust parameters by the experience of the personnel present, which leads to many problems over time. This thesis combines data mining and regression analysis to analyze the past data of a textile factory, and use the decision tree as basic model to find the best production path. Furthermore, we design parameters by means of parameters classification. At last, statistical methods are used to verify the reliability of our model, and test whether the best production path can effectively improve the yield or not.
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Liao, Cheng-tse, and 廖程澤. "A simulation study for the weaving production process and resource allocation –using a weaving company as an example." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/86846262126271351296.
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碩士雲林科技大學
工業工程與管理研究所碩士班
97
In general, the factory production activity is limited by the resources that can be used. Therefore，how to setup the bottleneck plan and allocate the resources efficiently in order to improve the production and to gain the maximum profit is an important issue. In this research, a system simulation is introduced to study the weaving production process by using SIMPROCESS simulation software. The as-is model is established and verified with the actual process. Based on the simulation result, the bottleneck workstations are identified and several improving plans are proposed. The proposed plans include allocating the resources and modifying the process, and the objectives are to reduce the bottleneck workstations and enhance the production line balance. Finally, the simulation results have been studied based on these proposed plans. The cost and throughput for each plan are computed and compared. The plan with the best profit is recommended.
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Lin, Cheng-Yue, and 林承岳. "Control Process Development of Weaving and Dyeing Factory to React to REACH." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/32391239174734288269.
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碩士中原大學
工業與系統工程研究所
98
Based on ecological protection and sustainable development, EU implement strict protection measures for textiles. The primarily 40 chemicals regulations in the past combine with co-ordinate a chemical management system, which was called REACH. In textile supply chain, the weaving and dyeing factory which was accounted for 80% in Taiwan will be faced with the requirements of REACH, and aimed at the supply chain in the production of fabrics; all of the participants have responsibilities to ensure the safety of the chemicals and information transfer. The purpose was that when the fabrics export to the EU, to avoid violating of “No Data, No Market!” basic principles, and lead to pay a painful price. Therefore, this study is based on the conceptive design to explore a control operation process of weaving and dyeing factory to react to REACH. The Natural Step （TNS）framework is utilized to develop a green textile management and control system. First, the status of weaving and dyeing factory are generalized through REACH and TNS. The control system is constructed on the based of control operation processes of green supplier, green production and chemical information transfer management. Procedure of system construction by Unified Modeling Language（UML）is shown so that users are familiar with the modules and the correlation. Finally, the problem and the control processes for empirical interviews are summarized to provide improvement points and research direction in the future.
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Lin, Jia-Ying, and 林佳穎. "Parameter Prediction for Weaving Process in Cyber-Physical Systems Using Machine Learning." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8v6833.
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碩士國立臺灣大學
工程科學及海洋工程學研究所
106
In Industry 4.0, the intelligent transformation of traditional textile factories is important to maintain competitiveness. One of the key technologies for smart transformation is the cyber-physical system. The cyber-physical system will generate the cyber twin on the virtual end for each entity element in the industrial chain to achieve the purpose of predicting and managing the behavior of the entity element. The cyber-physical system needs to be self-examination and self-comparative, meaning that it is aware of changes in its own state and more similar entity elements to make predictions. More importantly, it is "self-reconfigurable" and self-enhanced according to system goals. In order to achieve the goal of setting the loom parameters intelligently, this study has two objectives. First one is to development a cloud data analysis system, InAnalysis. The second one will be build a parameters prediction model for the weaving process. From the perspective of data science, the machine learning regression algorithm is used to build a loom parameter prediction model, and 10-fold cross validation is used to understand the performance of the model. This achieved the "self-introspection" and "self-comparison" required by cyber-physical system. Also, the concept of query-based learning is used. And the performance of the prediction model can be effectively enhanced and a better realistic strategy can be obtained. This is the most important feature of the cyber-physical system, self-reconfigurable. The experimental results show that the MSE (Mean Square Error) of the prediction model is only 0. 000165. Moreover, the performance of the parameter prediction model and quality prediction model can be reinforced through query-based learning. In the future, InAnalysis''s API will be used in an operation parameter recommendation system (OPRS) and weaving process of decision-making will become intelligent. Further, the system could implement into entire textile industry. Such as, "orders," "R&D," "supplies," "production," "inspection," "shipments," and "sales." All other services are managed efficiently and intelligently by the cyber-physical system.
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Lou, Yu-Ting, and 劉于婷. "Process of Cultural and Creative Industries –Take a Rubber Band Weaving Techniques Case." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/rq7m2w.
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碩士國立虎尾科技大學
多媒體設計系數位內容創意產業碩士班
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In this study, hoping the birth of a rubber band weaving industry has developed into a high added value of cultural and creative industries design success stories, as related to the future to promote the process of change and innovation woven basis. Collection processes and braiding origin related literature, research product development and the art of weaving technology, the use of rubber band weaving techniques, learn the art of weaving in a special sense of cultural and creative product development process is the accu-mulation of the early people of Taiwan wisdom of life, is precious intangible cultural assets and rich cultural elements, but can be applied to research and development of cultural and creative industries. Weaving in response to social changes, the development of many innovative weaving techniques, in order to prevent the reduction of traditional industries increasingly, in response to good business manner and woven goods and marketing pipeline, so that weaving industry to flourish. In this era of digital technology, people use the tools and play "phone, tablet, game," the topic is actually replaced by "colored rubber bands", color rubber band in the world set off a wave of craft, knitting is a big push hands , does this now, the children always with a colored rubber band weave woven bracelet, you know how much of the charm colored rubber bands.
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Woodward, Lauren Lee. "Weaving an aesthetic of ecological and cultural process designing for the future of Boston's seaport /." 2009. http://purl.galileo.usg.edu/uga%5Fetd/woodward%5Flauren%5Fl%5F200905%5Fmla.
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Reeves, Crystal R. "The woven object of law and the weaving process of law: an interdisciplinary conception of legal pluralism in Samoa." Thesis, 2007. http://hdl.handle.net/1828/3208.
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This thesis develops an interdisciplinary, theoretical framework for analyzing moments of legal pluralism in banishment cases in Samoa. In the first two chapters, select theoretical forms, discourses and practices from legal anthropology, comparative legal scholarship and law and society studies are critically analyzed. Chapter three examines the role of metaphors in theorizing legal pluralism and legal change in both comparative legal scholarship and law and society scholarship. In chapters four and five, elements that were critically analyzed in chapters one through three are drawn together and recombined to theorize legal pluralism in Samoa. As part of this recombination, I employ two metaphors to guide my analysis. Metaphor one, woven objects, is employed to represent select strands of legality existent in Samoa. Metaphor two, the weaving process, is used to analyze how people create moments of legal pluralism in Samoan banishment cases through the adoption of particular subjectivities, through articulation of legal information, and via relations of power.
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Beare, David Merrit. "Therapeutic theatre : the weaving of self and theatre : a performative inquiry of the collaborative play-creating process and optimal adolscent development." Thesis, 2002. http://hdl.handle.net/2429/13969.
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Based on the overlapping principles of social constructivism, performance psychology, drama therapy, and therapeutic theatre, I explore the weaving of self and theatre. The main purpose for this performative inquiry study is to reach the most well-informed and sophisticated interpretation of how the collaborative play-creating process fosters optimal adolescent development. For the past three and a half years, I have facilitated hundreds of high school students through five separate collaborative play-creating processes. I position myself in this research with the belief that development is relational and that the teaching of theatre arts would be better served with the shift from the development of theatre to the development of people. The central interpretative site from which I will construct all my interpretations for this study are based on the transcription of five interviews (four youth and one facilitator) and all my field notes (as facilitator and researcher). From the transcribed interviews and field notes, I have conceptualized a theoretical framework, which involves nine themes, divided into two sections: theatre and self. The theatre section involves four collaborative play-creating process steps: script-writing, rehearsing, performing, and ongoing reflecting. The self section involves five developmental stages: inclusion, control, intimacy, empowerment and vision. In addition, selected sections of the transcribed text were used to create a script depicting eight characters operating at different developmental stages. Overall, I share with the readers my interpretations and analysis of the construction of the nine themes and the script. Conclusions of my study are made based on various stakeholders' evaluations of my interpretations.
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Mendes, Teresa Miguel Silva. "Melhoria do desempenho no processo de tecelagem." Master's thesis, 2015. http://hdl.handle.net/1822/39190.
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Dissertação de mestrado em Engenharia IndustrialEste estudo surge no âmbito de um estágio curricular associado à realização da dissertação, do Mestrado em Engenharia Industrial, da Universidade do Minho. O estágio decorreu na empresa LAMEIRINHO – Industria Têxtil, S. A., e teve como principal objetivo melhorar o desempenho no processo de tecelagem, visando a aplicação de técnicas e ferramentas de Lean Manufacturing. No processo de tecelagem foram estudadas e analisadas as fases de preparação do fio, assim como as operações de produção de tecido. Na fase de preparação do fio, o estudo incidiu na operação de urdissagem, sendo esta uma das operações que apresenta maior tempo de processo, relativamente à preparação da esquinadeira para urdir um novo artigo. Já na fase de tecelagem, o estudo focou-se no elevado número de teares que, todos os dias, se encontram parados. Estas questões foram estudadas e analisadas, para que, com a aplicação de ferramentas Lean Manufacturing, como 5S, Kaizen, SMED, Toyota Kata Coaching e Gestão Visual, sejam reduzidos tempos de espera, movimentações e transportes; e se proceda a uma reestruturação e normalização de processos.
This study arises in the context of a curriculum intership associated to the realization of the dissertation from the Masters degree in Industrial Engeneering of Universidade do Minho. This intership was held at the company LAMEIRINHO – Industria Têxtil, S.A. and had as main goal improve the weaving process, aiming the aplication of Lean Manufacturing tecniques and tools. At the weaving process it was studied and analysed the yarn preparation steps, and on the yarn production operations. On the yarn preparation, the study focused on the warping operation, being this one of the operations that takes more time in the process, concerning to the creel preparation to machinate a new article. In the weaving phase, the study focused in the reasons why looms present a high number of stops. These issues have been studied and analyzed, so that, with the application of Lean Manufacturing tools such as 5S, Kaizen, SMED, Visual Management and Toyota Kata Coaching, that we alow to reduce waiting times, movements and transport; and go along a restructuring and standardization processes.
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Lalonde, Johanne. "L'acte poétique de la "transfiguralité" : pratiques de l'autoportrait entre écriture et photographie." Thèse, 2016. http://hdl.handle.net/1866/19083.
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