Rozprawy doktorskie na temat „Stereolithographu”
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Tang, Yanyan. "Stereolithography Cure Process Modeling". Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7235.
Pełny tekst źródłaHan, Zhao. "Accuracy improvement of stereolithography". Thesis, University of Liverpool, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486424.
Pełny tekst źródłaTse, Laam Angela. "MEMS packaging with stereolithography". Thesis, Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/17025.
Pełny tekst źródłaLeBaut, Yann P. "Thermal aspect of stereolithography molds". Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/15991.
Pełny tekst źródłaCrawford, Joseph Carlisle-Eric III. "Injection failure of stereolithography molds". Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17687.
Pełny tekst źródłaMale, John Christie. "Liquid surface measurement in stereolithography". Thesis, Brunel University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343290.
Pełny tekst źródłaFournie, Victor. "Développement d’une bio-imprimante 3D opto-fluidique pour l’impression haute résolution et multimatériaux d’hydrogel". Electronic Thesis or Diss., Toulouse, INSA, 2023. http://www.theses.fr/2023ISAT0057.
Pełny tekst źródłaIn this thesis report, we introduce a pioneering concept in 3D printing applied to biological applications. The 3D-FlowPrint platform has been devised to execute high-resolution prints using multiple materials. This approach addresses the current limitations inherent in existing technologies. Micro-extrusion, stereolithography, and microfluidic probes possess individual capabilities to handle heterogeneous objects printing, achieve high resolutions, and manipulate fluids with precision. However, these capabilities have never been fully united in a proper technic. The 3D-FlowPrint platform draws inspiration from each of these concepts. It employs a microfluidic system to channel fluids to a submerged printhead, where the injected solution undergoes photopolymerization. By decoupling material deposition from polymerization, this platform attains both high resolution and the versatility to work with diverse materials.The heart of this platform resides in the design of its printhead. This printhead enables fluid injection and retrieval without environmental contamination, while facilitating laser transmission through an integrated optical fiber. To achieve these goals, we have developed four successive generations of printheads. The first generation, machined and molded, demonstrated the feasibility of the concept but presented room for improvement. The second generation, entirely 3D printed, introduced new geometric possibilities and rapid prototyping but faced challenges with optical interfaces. The third generation combined 3D printing with optically compatible material assembling. It enabled reproducible PEGDA prints to develop and characterize the platform, yet it encountered limitations for GelMA printing. The fourth generation overcame this challenge by introducing an air bubble under the printhead, resolving third-generation issues.This manuscript also analyzes the microfluidic system. The printheads operate immersed, enabling printing in cultured environments. These heads include an injection channel and an aspiration channel, along with surface reliefs ensuring complete collection of the injected solution to minimize contamination. Utilizing finite element-based numerical simulations, phase diagrams have been established to evaluate the material collection capacity. These simulations guided the optimization of surface reliefs to enhance the performance of the printheads. Additionally, the ability to transition from one fluid to another in multi-material printing was analyzed.The introduction of an optical fiber between the microfluidic channels allowed the photopolymerization of the injected solution. The platform gained versatility with dual printing speeds enabled by the insertion of two optical fibers in the 3D printed printheads. Photopolymerization thresholds of PEGDA and GelMA were investigated, and the impact of in-flow photopolymerization was verified. These analyses culminated in the printing of 2D, 2.5D, 3D, and multi-material structures with reproducible precision down to 7 micrometers.Serving as proof of concept for biological applications, the platform was employed in four distinct approaches. First, PEGDA objects prevented cell adhesion on specific part of the substrate, enabling the study of geometrically constrained development. Second, scaffold structures for surfacic 3D tissues were printed. Third, the printing of suspension of cells in GelMA was achieved, along with the characterization of cellular viability using this method. Lastly, a hybrid platform was developed for co-printing hydrogels and positioning 3D spheroids
D'Urso, Paul Steven. "Stereolithographic biomodelling in surgery /". [St. Lucia, Qld.], 1998. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17881.pdf.
Pełny tekst źródłaLiao, Hongmei. "Stereolithography using compositions containing ceramic powders". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ27992.pdf.
Pełny tekst źródłaBlair, Bryan Micharel. "Post-build processing of stereolithography molds". Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/19132.
Pełny tekst źródłaMarchives, Yoann. "Development of 3D filter made by stereolithography". Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0073/document.
Pełny tekst źródłaEvery day, the data exchanges increase thanks to the new technologies. We can keep our files, our pictures, our videos online to have an access anywhere on the planet (for now). In this way, the data output of the telecommunication systems has to be increased in order to satisfy the more and more demanding users. One way to allow this is to increase the bandwidths of the different signals, making possible to transmit more data at the same time. In this work, we will develop wide bandpass filters dedicated to space telecommunications. For that purpose, we need them to be compact, with low insertion loss and a limited number of parts to assemble. Consequently, we are interested to use resonators made with ceramic materials that permits to reach such properties. Moreover, these materials are compatible with stereolithography, an additive manufacturing process. Such technology is here very useful for our purpose since its design freedom allows the creation of almost all kind of geometries. To realize such wide bandpass filters, we need strong couplings between the different resonators and also for the accesses, so we will present our studies focused on reaching these specific objectives. Then, we will present different designs of wide bandpass filter around 4GHz. After different generation of ceramic based components, we are be able to experimentally create a 60% bandwidth (even 100% for our last version) very compact bandpass filter filling the objectives of this PhD thesis
Tola, Akale Merid. "Predicting high-speed milling dynamics using stereolithography". Diss., Wichita State University, 2010. http://hdl.handle.net/10057/3659.
Pełny tekst źródłaThesis (Ph.D.)--Wichita State University, College of Engineering, Dept. of Industrial and Manufacturing Engineering
Reeves, Philip E. "Reducing the surface deviation of stereolithography components". Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/13191/.
Pełny tekst źródłaComeau, Benita M. "Fabrication of tissue engineering scaffolds using stereolithography". Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/26564.
Pełny tekst źródłaCommittee Chair: Henderson, Clilfford; Committee Member: Ludovice, Peter; Committee Member: Meredith, Carson; Committee Member: Prausnitz, Mark; Committee Member: Rosen, David; Committee Member: Wang, Yadong. Part of the SMARTech Electronic Thesis and Dissertation Collection.
McColl, Erin A. "Using stereolithography to 3D print GelMA hydrogels". Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/109468/1/Erin_McColl_Thesis.pdf.
Pełny tekst źródłaXu, Dun. "Mechanical characterisation of micro-stereolithographic materials". Thesis, University of Warwick, 2011. http://wrap.warwick.ac.uk/49843/.
Pełny tekst źródłaDavis, Brian Edward. "Characterization and calibration of stereolithography products and processes". Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17677.
Pełny tekst źródłaSager, Benay. "A method for understanding and predicting stereolithography resolution". Thesis, Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/17832.
Pełny tekst źródłaPham, Giang T. "Ejection force modeling for stereolithography injection molding tools". Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/18214.
Pełny tekst źródłaRodet, Vincent Fabien. "Tool life and failure mechanisms of stereolithography molds". Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/18930.
Pełny tekst źródłaZabti, Mohamed Mohamed. "Effects of light absorber on micro stereolithography parts". Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3646/.
Pełny tekst źródłaMatsushita, Albert Keisuke. "Fabrication of tissue scaffolds using projection micro-stereolithography". Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/98663.
Pełny tekst źródłaCataloged from PDF version of thesis.
Includes bibliographical references (page 33).
In vitro liver models are a critical tool in pharmaceutical research, yet standard hepatocyte cultures fail to capture the complexity of in vivo tissue behavior. One of the most critical features of the in vivo liver is the extensive microvasculature which allows for the delivery of nutrients and metabolites without exposing hepatocytes to de-differentiating fluidic shear stresses. A new liver tissue scaffold design able to capture this histological organization may therefore improve the functional longevity of seeded hepatocytes. The additive manufacturing technique of projection micro-stereolithography (PuSL) proved capable of building non-cytotoxic and highly complex 3D structures with microvasculature on the order of 20 um inner diameter. While extensive biological testing remains to be carried out, the built structures reveal much promise in PuSL as a method of tissue scaffold fabrication in terms of in vivo mimicking architecture.
by Albert Keisuke Matsushita.
S.B.
Simpson, Patrick Glenn. "Additive Manufacturing of Short-Fiber Composites via Stereolithography". Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/29305.
Pełny tekst źródłaArmy Research Laboratory (U.S.)
Yin, Hang. "Fabrication of Tissue-Mimetic Environments Using Projection Stereolithography". Thesis, University of Colorado at Boulder, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10273888.
Pełny tekst źródłaThe stiffness of an extracellular matrix (ECM) can exert great influence on cellular functions such as proliferation, migration and differentiation. Challenges still remain, however, in the fabrication of artificial ECMs with well-controlled stiffness profiles in three dimension (3D). In this thesis, we developed a projection micro-stereolithography system to fabricate 3D structures with quantitative control over stiffness using biocompatible materials. The technique is based on a grayscale printing method, which spatially controls the crosslinking density in the 3D hydrogel structures without influencing their appearance. Mimetic tissue environments in the form of 2D striped patterns and 3D tubes with stiffness gradients were fabricated. Finally, we seeded bovine pulmonary arterial smooth muscle cells on these engineered environments, and during the culturing, cells migrated to stiffer regions. This work provides a method for fabricating tissue mimetic environments that can benefit the study of cellular behavior and other biomedical research.
Heger, Matthias. "Entwicklung eines Stereolithographieharzes für elastomere Produkte". [S.l. : s.n.], 2001. http://deposit.ddb.de/cgi-bin/dokserv?idn=962747858.
Pełny tekst źródłaLimaye, Ameya Shankar. "Multi-objective process planning method for Mask Projection Stereolithography". Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19717.
Pełny tekst źródłaGeving, Brad David. "Enhancement of stereolithography technology to support building around inserts". Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/16799.
Pełny tekst źródłaTucker, Thomas Marshall. "Three dimensional measurement data analysis in stereolithography rapid prototyping". Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/17082.
Pełny tekst źródłaCedorge, Thomas. "Surface roughness and draft angle effects on stereolithography molds". Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/18199.
Pełny tekst źródłaJelley, Christopher. "A stereolithography build simulation : business issues and technical development". Thesis, Cranfield University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263534.
Pełny tekst źródłaZhao, Xiayun. "Process planning for thick-film mask projection micro stereolithography". Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/28097.
Pełny tekst źródłaTonde, Mahesh Pandurang. "Retroffiting a stereolithography system within a laminar flow hood". To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Pełny tekst źródłaCooke, Malcolm Norman. "Novel Stereolithographic Manufacture of Biodegradable Bone Tissue Scaffolds". Case Western Reserve University School of Graduate Studies / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=case1088797803.
Pełny tekst źródłaLimaye, Ameya Shankar. "Design and Analysis of a Mask projection Micro Stereolithography System". Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4943.
Pełny tekst źródłaMcClurkin, Joel E. "A computer aided build style decision support method for stereolithography". Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/16684.
Pełny tekst źródłaWest, Aaron P. "A decision support system for fabrication process planning in stereolithography". Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/16896.
Pełny tekst źródłaSaleh, Naguib. "Effects of humidity and ageing on epoxy-based stereolithography materials". Thesis, Loughborough University, 2005. https://dspace.lboro.ac.uk/2134/16585.
Pełny tekst źródłaCampaigne, Earl Andrew III. "Fabrication and Characterization of Carbon Nanocomposite Photopolymers via Projection Stereolithography". Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/50270.
Pełny tekst źródłaMaster of Science
Navarrete, Misael. "Three-dimensional electronics packaging integration of stereolithography and direct print". To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2009. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.
Pełny tekst źródłaHarris, Russell A. "Controlling the morphology of parts produced by stereolithography injection moulds". Thesis, Loughborough University, 2002. https://dspace.lboro.ac.uk/2134/34973.
Pełny tekst źródłaSCORDO, GIORGIO. "A novel electrical conductive resin for stereolithographic 3D printing". Doctoral thesis, Politecnico di Torino, 2021. http://hdl.handle.net/11583/2899751.
Pełny tekst źródłaMoore, Chad Andrew. "A multi-axis stereolithography controller with a graphical user interface (GUI)". Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/16350.
Pełny tekst źródłaKataria, Alok. "Standardization and process planning for building around inserts in stereolithography apparatus". Thesis, Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/16653.
Pełny tekst źródłaPalmer, Anne Elizabeth. "The effect of feature geometry on the life of stereolithography molds". Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/18385.
Pełny tekst źródłaBrickman, Raredon Micha Sam. "Design and fabrication of physiologic tissue scaffolds using projection-micro-stereolithography". Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90086.
Pełny tekst źródła35
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 65-67).
Recent advances in material processing are presenting groundbreaking opportunities for biomedical engineers. Projection-micro-stereolithography, or PuSL, is an additive manufacturing technique in which complex parts are built out of UV-curable resins using ultraviolet light. The primary strength of PuSL is its capacity to translate CAD files into three-dimensional parts with unusually small feature sizes (~0.5 microns). It is an ideal candidate, therefore, for making tissue scaffolds with sophisticated microscopic architecture. Nearly all multicellular biological tissues display a hierarchy of scale. In human tissues, this means that the mechanics and function of an organ are defined by structural organization on multiple levels. Macroscopically, a branching blood supply creates a patent network for nutrient delivery and gas exchange. Microscopically, these vessels spread into capillary beds shaped in an organ-specific orientation and organization, helping to define the functional unit of a given tissue. On a nano-scale, the walls of these capillaries have a tissue-specific structure that selectively mediates the diffusion of nutrients and proteins. To craft a histologically accurate tissue, each of these length scales must be considered and mimicked in a space-filling fashion. In this project, I sought to generate a cellular, degradable tissue scaffolds that mimicked native extracellular matrix across length scales. The research described here lays the groundwork for the generation of degradable, vascularized cell scaffolds that might be used to build architecturally complex multi-cellular tissues suitable for both pharmacological modeling and regenerative medicine.
by Micha Sam Brickman Raredon.
S.M.
Sphabmixay, Pierre. "Engineering micro-perfusable scaffolds for MesoPhysiological Systems using projection Micro-StereoLithography". Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/129115.
Pełny tekst źródłaCataloged from student-submitted PDF of thesis.
Includes bibliographical references (pages 140-155).
MicroPhysiological Systems (MPS) are in vitro models that capture the complexity of human organs at miniature scale by recreating the native microenvironment of resident cells. These systems offer promising alternatives to in vivo animal models for the development of new drugs, disease modeling and biological research. The organs in the human body are continuously perfused via a dense network of blood vessels delivering oxygen, nutrients and biomolecules locally while clearing waste materials produced by the tissue. As a result, MPS that incorporate microperfusion in a three-dimensional format have been a major focal point in the community driving major efforts towards in vitro vascularization methods. A major obstacle to the development of these MPS was the micrometric scale of the human cells forming the building block of any biological system.
But advances in micro and nanofabrication techniques have led to the creation of a myriad of new MPS that allow the successful culture of 3D tissues under microperfusion. Nevertheless, the translation of in vitro data from MPS to clinical data is confronted with the fundamental problem arising from the multi-dimensional scaling of experimental parameters, from micrometric systems to macroscale organs. This thesis describes the design, fabrication and implementation of a MesoPhysiological System (MePS) for the culture of human cells at mescoscopic scale. The MePS consists of a perfusable 3D printed network of microcapillaries serving as a scaffold for the tissue with built-in vasculature. The manufacturing of the MePS was performed using a Projection Micro-StereoLithography Apparatus which enabled the fabrication of centimetric scaffolds with micrometric features at high through-put.
The geometry of the MePS was carefully designed using computational fluid dynamics and computational model of oxygen transport so that critical physico-chemical parameters of the MePS, such as shear forces and oxygen levels would reach physiological values. Long term cultures of liver and brain tissues were performed in the MePS and featured elevated function and viability compared to other MPS. The increased metabolic rate and hepatic function of the liver MePS permitted to recapitulate critical features of metabolic disorders, such as chronic development of an insulin resistance phenotype in type 2 diabetes mellitus.
by Pierre Sphabmixay.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Department of Mechanical Engineering
Sabree, Israa. "Fabrication of bioactive glass scaffolds by stereolithography for bone tissue engineering". Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/fabrication-of-bioactive-glass-scaffolds-by-stereolithography-for-bone-tissue-engineering(83a17853-1626-4ef2-bb7e-45c07834359c).html.
Pełny tekst źródłaChia, Gomez Laura Piedad. "Elaboration et caractérisation de matériaux fonctionnels pour la stereolithographie biphotonique". Thesis, Mulhouse, 2017. http://www.theses.fr/2017MULH9153.
Pełny tekst źródłaThe two-photon stereolithography (TPS) technique is a micro-nanofabrication method based on photopolymerization by two-photon absorption that allows in a single manufacturing step to obtain complex 3D structures with high-resolution details (sub-100nm). Due to the specific conditions of TPS process (intense photon flux, spatial confinement of the photoreaction…) one of the main concerns today is the development of functional materials compatible with the TPS. According to the aforementioned, the general objective of this thesis was to develop new functional materials based on molecularly imprinted polymers (MIP) to elaborate chemical microsensors. In the first step of this work, different methods were implemented to characterize the geometrical, chemical and mechanical properties of the materials synthesized by TPS. For example, laser-Doppler vibrometry was used for first time to evaluate the mechanical properties of microstructures fabricated by TPS in a non-invasive way. In the second step, the characterization methodology was used to study the impact of the manufacturing process (i.e. photonic conditions) and the physicochemical parameters that affect the photoreaction (i.e. oxygen inhibition and the nature of the monomer) and the final properties of the materials. Finally, the obtained results enabled the prototyping of chemical microsensors based on MIP. Their molecular recognition properties and their selectivity were demonstrated for the molecule (D-L-Phe) by an optical and a mechanical sensing method
Sager, Benay. "Stereolithography Characterization for Surface Finish Improvement: Inverse Design Methods for Process Planning". Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-04092006-155545/.
Pełny tekst źródłaDr. David W. Rosen, Committee Chair ; Dr. Farrokh Mistree, Committee Member ; Dr. W. Jack Lackey, Committee Member ; Dr. Cliff Henderson, Committee Member ; Dr. Ali Adibi, Committee Member.
Wang, Zongjie. "Development of a visible light stereolithography-based bioprinting system for tissue engineering". Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/58213.
Pełny tekst źródłaApplied Science, Faculty of
Engineering, School of (Okanagan)
Graduate