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 26 for “"ease of processing"”.
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Development of Bismaleimide/Cyanate Ester Based Aerospace Polymers for Possible Use in NASA's Relaunchable Vehicles Program
Since the beginning of the space age, the goal of materials development in the aerospace industry has been to replace metal alloys with much lighter polymer resins, while maintaining the strength over a wide temperature range characteristic of metals. Polymers such as polyimides and epoxies have …
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Identifying Secondary Crashes by Using Geographic Information System (GIS) and Determining the Secondary Crashes Characteristics
… expands, traffic incidents led to more than 25% of traffic congestion in the United States (FHWA, 2014). The risk of the occurrence of secondary crashes can be six times higher in the presence of a primary crash than that at a normal traffic condition (Yang et al., 2013 and Tedesco, 1994). The …
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Exploration of 3D Nanoscale Image Sensor to Enable Logic and Sensing in Single Chip
… have been attracting and gained increased attention due to their potential for very high sensitivity detection. Silicon photodetectors are of particular interest due to their low cost, ease of processing and ability for integration with conventional fabrication techniques. In this …
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Instrumentation For the Study of Tantalum Diffusion Barriers Between Silicon Substrates and Copper Films
Currently, the material of choice for interconnects on silicon devices is aluminum. This is because of its ease of processing and low contact resistance. But because of aluminum's tendency to electromigration and junction spiking, it is not suitable for future reduction of silicon devices. Copper …
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The Effect of Face-to-Face versus Computer-Mediated Communication on Interpersonal Outcomes in Getting-Acquainted Situations
… others. Successful relationship development is often marked by the presence of positive interpersonal outcomes (i.e., closeness and liking). However, there is contention regarding whether computer-mediated communication (CMC) is as effective at developing positive interpersonal outcomes compared …
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Demonstrating visibly transparent solar cells and photodetectors
The fabrication of inorganic semiconductor devices, such as silicon solar cells and photodetectors, is despite significant research still expensive and energy intensive. Especially for solar cells, high upfront costs are a limiting factor for large-scale fabrication and implementation. Organic …
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Effects of stereotyping on mood
The study investigated the influence of stereotyping on mood. It was hypothesized that people who were able to solve a problem by applying a stereotype will experience more positive affect compared to people who could not, and that the relationship between stereotyping and mood was mediated by …
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Novel, inorganic composites using porous, alkali-activated, aluminosilicate binders
… are an inorganic polymeric material composed of alumina, silica, and alkali metal oxides. Geopolymers are chemical and fire resistant, can be used as refractory adhesives, and are processed at or near ambient temperature. These properties make geopolymer an attractive choice as a matrix …
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Device physics of perovskite light-emitting diodes
… excellent charge-transport properties, ease of processing and tunable bandgap. In less than a decade, the external quantum efficiency of perovskite light-emitting diodes (PeLEDs) has increased rapidly to over 25%, which is comparable with that of organic LEDs. The behaviour of PeLEDs is …
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Design and fabrication of a recycled carrier modulator
… carrier wave. First and foremost, the choice of material was made bearing in mind the implication it would have on the fabrication and operation of the device. Lithium Niobate was chosen given the fact that over the years it has been proven to be a more matured and well understood wave guiding …
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Polymer Grafted Nanoparticles as Functional and Mechanically Robust Single-Component Composites
… polymers have been used in the formulation of composite materials that capitalize on the ease of processing, low density, and low cost of plastics while incorporating specific filler materials that enhance mechanical properties or add functionality. Synthesizing polymer matrix composites …
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Synthesis and Characterization of Polyhedral Oligomeric Silsesquioxane (POSS) Based Amphiphiles
… for many years as hybrid materials and nanofillers for controlling thermal and mechanical properties, and for providing thermal and chemical resistance while retaining ease of processing. A natural extension of these studies has been working on POSS-based amphiphiles and thin film coatings. …
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Synthesis and Characterization of Polyhedral Oligomeric Silsesquioxane (POSS) Based Amphiphiles
… for many years as hybrid materials and nanofillers for controlling thermal and mechanical properties, and providing thermal and chemical resistance while retaining ease of processing. A natural extension of these studies has been POSS-based amphiphiles and thin film coatings. Studies at the …
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Development of a Novel Drug Delivery System Based on Conducting Polymers
Controlled release systems offer advantages over conventional therapies by maintaining drug concentrations at therapeutically desired levels whilst simultaneously improving compliance. Intrinsically Conducting Polymers (ICP) are organic materials that have electrical, magnetic and optical …
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Investigation of defect formation and control in poly-crystalline anatase titanium dioxide
Titanium dioxide (TiO2) has become one of the most prominent materials in the research efforts related to the clean production of energy and value added chemicals. TiO2 has been praised for the catalytic activity of its anatase phase, its abundance in nature, low toxicity, stability in aqueous …
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Rehardenable materials system with diffusion barrier for three-dimensional printing
… being developed for the direct manufacture of functional tooling and prototypes from a computer solid model. One of its many important applications is the fabrication of metal tooling for plastic injection molding. In order to achieve a fully dense 3DP metal tool, the sintered powder …
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Sustainable Polymers Through Creative Design
Plastics have changed the world of materials due to their high durability, low price, low density, and ease of processing. Unfortunately, the majority of plastic goods produced are discarded instead of recycled, leading to a massive accumulation of plastic waste in landfills and natural habitats. …
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Novel Materials and Processes for Fabrication of Integrated Photonic and Opto-Electronic Devices
… utilizing new processes for the creation of optical waveguides, interconnects, and electro-optic modulators. Sol-gel, which begins as a suspension of particles in a liquid called a sol, is synthesized and used to create thin films of TiO2, SiO2, and blends of the two. Films created from …
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Novel Carbazole Based Methacrylates, Acrylates, and Dimethacrylates to Produce High Refractive Index Polymers
… charge-transporting properties, combined with ease of processing. The objective of this research was to design, synthesize, and characterize high refractive index polymers and copolymers for use in optical spectacle lenses of eyeglasses. Additionally, other interesting attributes were observed …
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Schematic effects of rape myth acceptance
In a set of studies, the present work investigates the type of influence exerted by rape myth acceptance (RMA). Rape myths may be defined as "beliefs about rape (i.e., about its causes, context, consequences, perpetrators, victims, and their interaction) that serve to deny, downplay or justify male …
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