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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 104 for “"drying process"”.
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Modelling and simulation of drying process for ceramic membrane fabrication
… to any thermal gradient effects. Therefore, processing steps of green body of ceramic is crucial especially in membrane fabrication that has a multilayer structure to ensure the efficiency of its applications. Thus, every step of ceramic membrane preparation and fabrication needs careful …
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The development of micro-sample electrical impedance analysis for freeze-drying process development
Background: Since primary drying in freeze drying cycle is the longest step, it is desired to use optimal process conditions for efficient drying by running a process under the critical temperatures (e.g., Tg’, Teu, Tc’). Multiple techniques and instruments (e.g., differential scanning calorimetry, …
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A freeze-drying process for fabrication of polymeric bridges for peripheral nerve regeneration
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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Energy efficiency of non-face brick production with particular reference to the drying process
… Netherlands, (the Netherlands use the soft mud process which does not lend itself to hollow ware production). However, in South Africa, in spite of potential energy and clay saving, the number of hollow block factories, has shrunk in the past 30 years. The only move towards hollow ware, has been …
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Modell zur Beschreibung der Trocknung von Feuerbetonen
The accomplished investigations about the drying process of refractory concrete are of interest for the refractory industry, whose world-wide sold products are mainly used in the steel industry. In the recent years a considerable amount of refractory companies replaced their products with new …
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In-situ Study of Single Pharmaceutical Granule Drying using Synchrotron X-ray Imaging
The drying process of wetted granules using common methods such as fluidized bed drying is a key unit operation in the pharmaceutical tableting industry. To ensure homogeneity and product quality for a wide range of formulations in the final tableted product, the monitoring of changes to an …
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Dehydration of apple rings
… tray surface and ring thickness, on the drying rates of apple rings, is reported. Drying rates for different apple slice thicknesses are correlated with the total moisture content of the fruit and the air relative humidity. Also reported are results on the simulation, both experimental …
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Microprocessor Controlled Low Temperature Grain Drying
The purpose of this study was to develop a microprocessor based controller capable of optimizing the drying process in a low temperature corn drying bin by controlling the drying fan operation. A procedure was developed to predict the moisture profile in a drying bin based on the measured …
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Development of immobilization and drying methods of enzymes on support particles for enzymatic gas-phase reactions
… The effects of various immobilization and drying process parameters on the residual activity and the protein loading of the immobilized enzyme preparation were studied and thereby different optimum preparations were observed for different enzymes. Under the optimum immobilization conditions …
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Thermal Analysis of Multi-Cylinder Drying Section with variant Geometry
… mathematical model was developed for the drying process in a multi-cylinder drying section. The unsteady state of one-dimensional heat conduction equation has been applied to mathematical model of both, cylinder shell and paper web. The internal mass transfer of the paper web has not been …
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Acoustic emission based control of wood drying
Drying is one of the most critical process steps in converting trees to a marketable material for use in high value wood products. The primary reasons for drying wood are to prevent biological deterioration and to improve mechanical strength and dimensional stability. The purpose of this research …
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Three-dimensional nanofabrication by electron-beam lithography and directed self-assembly
… self-assembly. We first developed new processes for fabricating 3D nanostructures using a hydrogen silsesquioxane (HSQ) and poly(methylmeth-acrylate) (PMMA) bilayer resist stack. We demonstrated self-aligned mushroom-shaped posts and freestanding supported structures. Next, we used the …
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Application of through-vial impedance spectroscopy as a novel process analytical technology for freeze drying
… develop applications for a novel impedance-based process analytical technology for monitoring the attributes of the product during the entire freeze-drying process (from pre-freezing and annealing to primary and then secondary drying). This measurement approach involves the application of foil …
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Microwave freeze-drying of aqueous solutions
The freeze-drying process has been plagued with problems, such as long drying times and inefficiency. Microwave freeze-drying has proven its potential as way of reducing long drying times associated with freeze-drying, and as a result, there has been a considerable amount of work done to increase …
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Contribuição ao estudo da resistência não-drenada e secagem dos solos compactados em laboratório das áreas de empréstimo da barragem Palmar
… of magnitude of the influence of a previous drying up to the undrained shear strength. These forecasts assume, as a working hypothesis, that the relationship (e√S)o vs. undrained shear strength is independent of the drying process.
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Field-drying logging residues for use as an industrial fuel
… was conducted to determine the moisture content, drying rates, and fuel value of logging residues produced in three of Virginia's physiographic zones. Samples were taken from the residues at intervals over a two year period to monitor moisture and fuel value changes under a variety of …
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Verfahren zur Herstellung gefriergetrockneter Kollagenschwämme mit definierter Porenstruktur
… is very unregular. Therefore, a new freeze-drying process for manufacturing collagen sponges with a very homogeneous, defined and directed pore structure was developed and technically reallised. Using this process the pore size can be adjusted in the range of 20 µm to 40 µm by a variation of …
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