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 45 for “"DI water"”.
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Bacteria mediated heat sinks
Many applications, such as laser diode technology, utilize components (eg. resistors) which have performance characteristics heavily dependent on temperature, and therefore, maintaining constant temperature is essential in order to eliminate drift in device efficiency. Constant temperature …
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Drain Diverter
The DI water is commonly used to rinse production wafers to remove mechanical and chemical residue without any problematic chemical reaction in rinse process. The semiconductor industry wants to save their manufacture cost and reduce the industrial residue by recycling the deionized water during …
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Experimental investigation of effects of surface roughness, wettability and boiling-time on steady state and transient CHF for nanofluids
… in a nuclear reactor. Increasing the CHF of water can enhance the safety margins of the current fleet of Light Water Reactors (LWRs) and/or increase their power output. It has been shown that a suspension of nanoparticles called nanofluids in DI water enhances the CHF of water significantly. …
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Measurement of near-surface void fraction and macrolayer thickness in boiling water and silica-based nanofluid
… an error of 11.9% and 10.4% for measuring bubble diameter in water and R-123, respectively, and an error of 5.2% and 7.1% for measuring velocity in water and R-123. The macrolayer dryout theory of CHF was tested by investigating the change in macrolayer thickness for different heat fluxes in …
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Chemical Surface Modification of Polycarbonate to Increase Hydrophilicity
… is prone to fogging. Fogging can be reduced by modifying the structure of polycarbonate to be more hydrophilic, ideally superhydrophilic with a contact angle less than 10°. Many chemicals were tested to see if they could increase the polarity of polycarbonate. Polycarbonate was partially submerged …
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Stabilization of Magnetite Nanofluid and its Transport in Porous Media
… (magnetite, Fe3O4) nanoparticles in porous media and evaluate its application as a subsurface monitoring tool. The unique properties of magnetic nanoparticles make them a strong contrast agent against reservoir rocks and fluids as they exhibit a high magnetic response. Nanoparticles can be …
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Effects of Strain on Activated-Aluminum–Water Reactions
… with volumetric energy densities twice that of diesel fuel and 45 times that of lithium-ion batteries. Aluminum is activated when liquid eutectic gallium-indium disrupts the aluminum’s passive oxide layer, enabling a reaction with water to release hydrogen gas and heat. This thesis seeks further …
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Determining Interfacial Adhesion Performance and Reliability for Microelectronics Applications Using a Wedge Test Method
… failure and for making interface reliability predictions. Because interfacial bond integrity is a major concern for performance and reliability, the need to evaluate the fracture and delamination resistance of an interface under different environmental conditions is very important. This study …
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The Effect Of Colloidal Stability On The Heat Transfer Characteristics Of Nanosilica Dispersed Fluids
Addition of nano particles to cooling fluids has shown marked improvement in the heat transfer capabilities. Nanofluids, liquids that contain dispersed nanoparticles, are an emerging class of fluids that have great potential in many applications. There is a need to understand the fundamental …
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Development of label-free detection systems targeting food-borne pathogens
… assays. For this goal, impedance spectroscopy studies were carried out to characterize the system’s capability in determining changes in concentration of purified DNA in DI water. To adequately measure the change in DNA concentration in a PCR solution, it was necessary to go through a purification …
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Corrosion Behaviors of Coated Aluminum Alloys in Simulated Corrosive Environment
… were carried out under various corrosive conditions, specifically, hydrodynamic flow, immersion in salt water and DI water, varying temperatures, and simulated sun light. The hydrodynamic conditions were simulated using a rotating cylinder electrode (RCE) with rotational speeds of 200, 400, …
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Influential cooling of the free surface by jet impingement of aqueous nanodispersion dominant with hybridized nanoparticles
… when trying to control the engine's thermal conditions and reactions. The bulk metal temperature and local thermal stresses have the most significant impact on the life expectancy of the hot gas path component. The component will break sooner if the bulk temperature is too high, but cracks will …
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Synthesis, characterization and fluorescence performance of LaF3:Ce3+ nanocrystals
… biological applications in recent years. Among different types of labeling agents, Cerium-doped LaF3 nanocrystals (NCs) are considered to be a promising new class of luminescent materials. Usually, lanthanide-doped nanocrystals production entails the use of ligands and high-temperature, which …
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The effects of chloride-based deicing chemicals on degradation of portland cement mortars with alkali reactive aggregate
… performed at high temperature (80 °C) as per modified ASTM C1260). The second phase focused on the effect of deicers on the ASR under prolonged exposure to freezing and thawing (F/T) and wetting and drying (W/D) cycles. The aim of the third phase was on establishing the e effects of …
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Characterization of Protein Using SAW Resonator
… other liquid materials that may be expensive or difficult to obtain in large quantities. It would be a great benefit to be able to find the conductance, susceptance, viscosity, and other properties of these liquids quickly and inexpensively using quantities of less than one microliter. Previous …
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Improving the Strength of Binder Jetted Pharmaceutical Tablets Through Tailored Polymeric Binders and Powders
Additive Manufacturing (AM) provides a unique opportunity for fabrication of personalized medicine, where each oral dosage could be tailored to satisfy specific needs of each individual patient. Binder jetting, an easily scalable AM technique that is capable of processing the powdered raw material …
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Fabrication, Validation, and Performance Evaluation of a New Sampling System for the In-Situ Chemical Speciation of Chromium Ions in Groundwater Using Supported Liquid Membranes (SLMs)
… and the acceptor phase bottle was filled with DI water. The sampler was submerged in a beaker containing food coloring and DI water. The bottle contents were checked for the presence of food coloring using UV-vis spectroscopy. The sampler was determined to be leak-free if the bottle did not …
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An Automated Measurement And Analysis System For Resistivity-Based Monitoring Of Chemical Self-Assembly On Thin Gold Films
… probes and the impact of the surface on hybridization reactions. It is interesting to note that, in spite of the tremendous potential held by these new DNA technologies, little has been done in the way of physical characterization of the surface in the air. For example, the stability of the …
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Investigative study of long-term packaging effects and donor characteristics on acellular dermis scaffolds
… for a variety of tissue engineering and medical applications, such as soft tissue augmentation, skin and vascular grafts, engineered scaffolds, and hernia repair materials. Before tissue sources can be utilized commercially for these practices they usually are decellularized, i.e., have all …
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Water stability of organic and electrolyte-gated field-effect transistors
… applications. Organic materials seem ideal candidates for bioelectronics due to their softness, biocompatibility, stretchability, and their ability to conduct both electrons and ions. Many fundamental studies have been conducted, utilizing devices such as the Organic Field Effect Transistor …
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