Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 2709 for “"Gel"”.
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Polymer gel based actuator : dynamic model of gel for real time control
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Polymer gel spinning machine
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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Gel Development Using Cellulose Nanocrystals
… happens where the system evolves toward gelation. The individual CNC particles, through aggregation, contribute to building a 3D gel fractal structure. Where a porous self-similar 3D structure spans in space, the design and synthesis of CNC-based gels are tunable and flexible. Mechanical …
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A conjugated polymer plastic gel
We present a gel route to process highly oriented conjugated polymer films and fibers. The incorporation of hexafluoroisopropanol, a strong and stable dipolar group, to the polythiophene backbone enhances the solubility and especially, the hydrogen bond forming capabilities of the polymer. This …
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Polymer gel actuators and sensors
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.
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Bucky gel actuator for morphing applications
Since the demonstration of Bucky Gel Actuator (BGA) in 2005, a great deal of effort has been exerted to develop novel applications for electro-active morphing materials. Three-layered bimorph nanocomposite has become an excellent candidate for morphing applications since it can be easily …
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Gel electrophoresis for elemental speciation purposes
This work has shown that gel electrophoresis is a relevant fractionation method for trace elements bound to or complexed by macromolecules. Furthermore, detection methods of the trace elements that do not rely on the use of radiotracers were applied, making this combination relevant for materials …
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Anion-Tuning of Supramolecular Gel Properties
Low molecular weight gelators (LMWGs) are a class of compounds that has garnered great interest from material, synthetic, supramolecular and biological chemists. Anion tuning of these supramolecular gels is a burgeoning field of study. Two classes of compounds, chiral bisureas and urea derivatised …
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Transverse Isotachophoresis Using Polyacrylamide Gel Electrodes
… glass chip is used with Poly(Acrylamide) gel electrodes to establish an electric field perpendicular to the direction of sample flow, causing a controlled migration of charged particles. The design and fabrication of the microfluidic chip are addressed, along with the development of a …
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The principles of molecular gel formation
Molecular gels are associated with the formation of strongly anisotropic structures at low volume fractions (less than 1 wt%) that induce solid-like mechanical properties. Low molecular weight gelators based on aromatic short peptide derivatives have been shown to self-assemble into fibrous …
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Flow properties of a colloidal gel
ETDs are only available to UIUC Users without author permission
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The sol-gel polymerization of octamethoxysilsesquioxane
… of various solvents and catalysts on the sol-gel polymerization of [SigOi2](OCHg)g, the polymerization was followed by 29Si NMR spectroscopy, which indicated that the cubic structure of [SigOi2](OCH3)g was retained under initial polymerization conditions. Polymerization under acidic conditions …
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Ink-gel simultaneous embedded 3D printing
… require. The material requirements of liquid or gel materials that may take minutes or even hours to solidify prompted the invention of embedded 3D printing. Embedded 3D printing is a methodology whereby a liquid is 3D printed into a support gel that supports the printed material's form until it …
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Gel phase transition and molecular recognition
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1997.
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About the gel structure of lignin
… and suggests that lignin in wood exists as a gel (network polymer) of extremely low crosslink density or as an ungelled, branched polymer only. Delignification is therefore not controlled by degelation but rather by interaction with carbohydrates via covalent or hydrogen bonds and/or by …
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Evaluation of the performance of different polymer gel systems as an in-depth gel treatment using numerical simulation
… of the potential of polymer flooding and gel treatment requires accurate modeling of different parameters that could affect these processes. Selecting of the best polymer gel system requires an understanding of its performance inside the reservoir. The main aim and principle contribution …
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Proteomic profiling of Nguni cattle liver tissue using gel and Gel-Free approaches: methodology development and potential applications
In South Africa, resource-poor farmers mainly depend on livestock farming for their livelihoods, with cattle production being the most important livestock sector. As a consequence of natural selection in stressful conditions, Nguni cattle have been reported to be metabolically superior to other …
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Sol-gel preparation of silicon nitride materials
Sol-gel techniques are mainly used for oxides but are of growing interest for non-oxide materials. They allow formation of solid materials through gelation of precursor solutions and can be used to control composition and to produce a large number of useful morphologies such as films, monoliths, …
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