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 28 for “"Microcellular"”.
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The processing of microcellular foam
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1982.
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Microcellular processing of fluoropolymers and the design of a microcellular foam extrusion system for wire coating
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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The nucleation of microcellular thermoplastic foam
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1986.
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The production of polypropylene microcellular foam
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1985.
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Microwave multipath resolution in microcellular channels
… and scattering of radio propagation in typical microcellular environments. As a first step in this endeavor, building surface characterizations are made in order to determine empirical reflection coefficients of common building materials. Propagation experiments have been designed to determine …
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The production and analysis of microcellular foam
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981.
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Microcellular radio channel prediction using ray tracing
… of emerging small cellular (commonly known as microcellular) wireless systems is limited by the multipath propagation characteristics of the channel. Once these propagation conditions are understood, systems may be designed more efficiently in terms of cell layout, interference reduction, and …
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Processing and analysis of microcellular open-cell foams
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Microcellular polyurethane foaming by modified reaction injection molding
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1995.
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Development of oil-filled microcellular foam for transformer insulation
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Rheology of Foaming Polymers and its Influence on Microcellular Processing
… and crystallization on the low-density, microcellular extrusion foaming behaviour of polylactic acids (PLAs) are investigated. Comparisons are made between linear and branched PLAs and between amorphous and crystalline PLAs. The branched PLAs are found to produce foams with higher …
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Manufacturability of microcellular foamed plastics : design of gas-addition device
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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A Comprehensive In-Building and Microcellular Wireless Communication System Design Tool
… quickly and efficiently provide in-building and microcellular coverage without sacrificing quality is critical to cellular and emerging personal communication system (PCS) operators. Traditionally, indoor wireless communication system design has been carried out by human experts relying on …
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The role of polymer/gas solutions in continuous processing of microcellular polymers
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Microcellular polymer processing and the design of a continuous sheet processing system
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1994.
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Process synthesis for manufacturing microcellular thermoplastic parts : a case study in axiomatic design
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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Extrusion of microcellular plastic using a tandem foaming system : design, fabrication and experimentation
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1997.
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Dynamic range of analog fiber optic links used in microcellular mobile radio applications
The use of analog fiber optic links for microcellular mobile radio communications has been the focus of considerable research recently. These systems have the advantages relative to coaxial cable of low noise and enormous bandwidth. Analog subcarrier multiplexing techniques are used for …
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A Novel Process to Create Arbitrary Microcellular Patterns in Polycarbonate using a Laser Beam
Microcellular and nanocellular polymer foams offer a wide range of applications from food safety to aerospace industries. In this work, we introduce a versatile process to nucleate microcells in polycarbonate sheets via laser beam. This method allows local heating of CO2 saturated polycarbonates …
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Synthesis and analysis of a microcellular plastics extrusion system for insulation of fine wires
… experimental work performed on the extrusion of microcellular plastics with cell sizes of 20 microns or less and cell densities of about a billion cells per cm3. An analytical model of cell nucleation and cell growth during extrusion was developed. This model predicts the nucleation rate by …
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