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Showing 1 to 20 of 2236 for “"shell"”.
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Investigation of shell and axisymmetric shell structures
… R. L1., Stress matrix for a doubly curved shell finite element, C. E. G. B. pub. No. RD/L/N 113/76 4. Nelson, R. L1., A new algorithm to program the element matrices of doubly curved shell finite elements, C. E. G. B. pub. No. RD/L/N 139/77 5. Nelson, R. Ll., Free vibration analysis of …
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Shell-side transfer in shell-and-tube heat exchangers
Local mass transfer coefficients were determined by using the electrochemical technique. A simple model of a heat exchanger with segmental nickel tube joined to p.v.c. rods replaced the exchanger tubes. Measurements were made for both no-Ieakage, semi-leakage and total leakage configurations. …
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Multistable Shell Structures
… Whilst multiple methods to create bistable shells have been proposed, most studies focussed on free-standing ones. Considering the strong influence of support conditions on related stability thresholds, surprisingly little is known about their influence on multistable behaviour. In fact, the …
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Understanding the Influence of Interfacial Chemistry in Core, Core/Shell and Core/Shell/Shell Quantum Dots on their Fluorescence Properties
… at the interface, namely core-ligand, core-shell and shell-shells, to the overall quantum dots fluorescence properties are not well understood. Specifically for cores, relating surface-atoms interactions, solvents, ligands nature, density and functional groups on quantum yields have not been …
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Behavior of shell structures
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1999.
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Off-shell baryon-baryon scattering
Contains fulltext : mmubn000001_162365713.pdf (Publisher’s version ) (Open Access)
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Fabrication of Core-Shell Nanoparticles
Metallic Cu and Au shells were fabricated around cobalt nanoparticles. A new technique to coat nanoparticles with carbon coatings and poly(methyl methacrylate) (PMMA) was developed. The copper shell formation is a self-limiting process. A thin copper shell (0.82 nm) around the cobalt nanoparticle …
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Geotechnical behavior of shell foundations
The geotechnical behavior of shell foundations was investigated experimentally, numerically, and theoretically. Experimental investigation was carried out on nine prototype foundation models in loose, medium, and dense sands. Experimental set-up was organized and instrumented to perform the testing …
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Analysis of Thick-Shell Structures
Made available in DSpace on 2014-12-10T23:36:44Z (GMT). No. of bitstreams: 1 7317189.pdf: 2626587 bytes, checksum: 91c7c257062417cb800d250039858cb6 (MD5) Previous issue date: 1972
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Geometry of Creased Shell Structures
Thin Shells are widely used structural elements but are often limited to simple geometries. Special geometric designs can optimise performance through light yet stiffer shell structures. Creasing is one such method that has attracted a lot of traction lately. Many of these structures are …
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Modal interactions in shell dynamics
… response of infinitely long circular cylindrical shells to an external harmonic excitation. The excitation frequency is near the linear natural frequency of the breathing mode (i.e., primary resonance of the breathing mode) and the linear natural frequency of the breathing mode is approximately …
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Synthesis of pH-responsive core-shell nanoparticles of different sizes and with different shell compositions
… aminoethyl methacrylate)-shell nanoparticles could potentially increase the efficacy of transcutaneous administered vaccines and facilitate the cytosolic delivery of a wide variety of therapeutic macromolecules. One of the goals of this study was to reduce the size of these …
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Local shell-side coefficients in shell and tube exchanges the use of a mass transfer technique
… been employed in making local measurements of shell-side coefficients in segmentally baffled shell and tube heat exchangers. Corresponding heat transfer data are predicted through the Chilton and Colburn heat and mass transfer analogy. Mass transfer coefficients were measured for baffle spacing …
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Biotechnological utilisation of Nephrops shell waste
Shellfish processing results in the disposal of large quantities of waste to landfill sites. This project sought to deal with the issue of the processing of marine crustacean waste, specifically that of the prawn, Nephrops norvegicus. The exoskeleton of Nephrops norvegicus contains chitin, …
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Multistable and morphing corrugated shell structures
… mechanisms becoming redundant. Corrugated shells are commonly encountered at all scales of engineering, providing shell structures of a dramatically increased stiffness at little extra cost or weight. What is historically less understood is the compliant behaviour of corrugated shells. The …
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Core -Shell Microspheres for Biomedical Applications
… the delivery of drugs and imaging agents. Core-shell protein or polymer microspheres are biocompatible vesicles that have been used to meet the goal of transporting drugs or contrast agents to diseased tissues via the circulatory system. They consist of a hydrophobic core surrounded by a protein …
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Analysis of Elasto-Plastic Shell Structures
Made available in DSpace on 2014-12-08T23:56:59Z (GMT). No. of bitstreams: 1 6808221.pdf: 3255758 bytes, checksum: f131ea1a6e3dde54b2ad3b3b0a53cb5d (MD5) Previous issue date: 1967
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Design of a short concrete shell
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1958.
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