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.
Results
Showing 1 to 20 of 26 for “"3d systems"”.
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Effects of pore-scale fluid flow on fluid-solid reactions in porous and fractured media
… two-dimensional (2D) and three-dimensional (3D) systems, potentially leading to fundamental differences in reactive transport dynamics. However, most previous studies have investigated fluid-solid reactions in 2D systems without considering fluid inertia, and our understanding of the role of …
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Multimodal game-based learning in Post-Secondary Education
… modalities of information. Using today’s 3D systems and virtual reality tools, this concept can be explored to depths never before possible. The aim of this project was to design and implement an application that could be used to evaluate how MGBL could impact student engagement and …
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IMPLEMENTATION OF 3D CELLULAR MODELS FOR DRUG AND TOXIN TESTING IN HEALTHY AND CANCEROUS TISSUE
… drugs, it is imperative that microphysiological systems represent their parent tissue as accurately as possible. It is essential that any preclinical model is human, able to recapitulate the organization, cell type, and proper cell to cell interactions. Human 2D cell line models and animal models …
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Omnidirectional view and multi-modal streaming in 3D tele-immersion system
3D Tele-immersion (3DTI) technology allows full-body, multi-modal content delivery among geographically dispersed users. In 3DTI, user’s 3D model will be captured by multiple RGB-D (color plus depth) cameras surround- ing user’s body. In addition, various sensors (e.g., motion sensors, medical …
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Learning 3D Modeling and Simulation From and For the Real World
… of comprehending and reasoning about our 3D visual world. With just a few casual glances, we can grasp the 3D structure and appearance of our surroundings and imagine all sorts of “what-if” scenarios in our minds. Existing 3D systems, in contrast, cannot. They lack structural understanding …
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Custom digital fabrication in industrial design
… dropping. Since the first commercially available 3D printer was released in 1988 by 3D Systems, the technology has advanced and it is possible to by a DIY 3D printer kit for under $1000 from MakerBot Industries. The term digital fabrication is publicized as the next step towards fabricating your …
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Relationships between throwing velocity and selected kinematics in youth baseball players
… to those reported in the literature using 3D analysis. Thirteen baseball players (15.31 ± 1.25 yrs., 72.29 ± 10.79 kg and 177.09 ± 5.59 cm tall) participated in the study. A video camera was used to record three throwing trials for each participant. Four reflective markers were placed on …
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Characteristics of defect modes, slow light, and disorder in photonic crystals
… the construction of 2D-like defect modes in a 3D photonic crystal with a complete gap. The modes are similar to those in 2D photonic crystals in terms of polarization, field profile, and projected band structures. The results should facilitate the implementation of 2D photonic-crystal devices …
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An In Vitro 3D Model to Evaluate Behaviour of Breast Cancer Cells and Response to Treatment
The field of 3D culture models of disease has started to move towards systems that aim to recapitulate the complexity of human tissues. However, despite recent improvements, current 3D systems remain overly simplistic, lacking the biophysical characteristics and diverse structures found in most …
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Search, Discovery, Synthesis and Characterization of Itinerant Magnets Composed of Non-magnetic Constituents
… quantum criticality. Surprisingly, while many systems exhibit both local and itinerant magnetism, only two are known to contain no local moment ions: Sc3In and ZrZn2. Doping experiments on Sc3In were used to investigate the effects of both magnetic (Er) and non-magnetic (Lu) substitutions …
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Data visualization in the first person
… related research on first person interfaces and 3D visualization has focused on producing tools for expert users and scientific analysis. Due to the complexities of navigation and perception introduced by 3D interfaces, work in this area has had mixed results. In particular, considerable efforts …
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Virtual drilling haptics perception from auditory cues employing low-end haptic devices
… haptic devices (Novint Falcon, and 3D Systems Touch 3D Stylus) in the presence of contextual sound (prerecorded wood drilling sound) and non-contextual sound (no sound, classical music, and white noise). Although the results of this study do not show any statistically significant …
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Effect of Centric Interference on Canine Tooth Wear
… a high resolution desktop scanner, (OrthoInsight 3D Scanner™, MotionView LLC). T4 models were articulated using a Panadent® Articulator and evaluated for dental interferences and CO/MIP variance using the incisal pin locator. The canines were evaluated for volumetric CTW from T2 to T4 using …
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Driving Emerging Technologies From Concept to Reality: A Case Study of Carbon Nanotubes
… integration into practical and useful electronic systems challenging. In my thesis, I aim to tackle this challenge and present a roadmap for how such new and immature nanotechnologies can be leveraged to not only set the foundation for futuristic next-generation hardware, but also realize …
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Mathematical and Computational modelling of soft and active matter
… collective behaviour of particles. Two types of systems have been considered namely homogeneous and heterogeneous systems, which represent collective motion with and without obstacles respectively. The Vicsek model has been used to investigate the collective behaviour of the particles in 2D and …
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Tailored peptide hydrogel-based three-dimensional system improves stem cell maintenance, therapeutic potential and differentiation
… Previously we developed a three-dimensional (3D) method that produces large amount of high quality hiPSCs, but the mechanism for 3D iPSC maintenance is still unexplored. Based on the previous established 3D hiPSC culture methods using peptide hydrogel PGmatrix, we found that the better …
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Wärmeleitfähigkeit von 4 He in der Nähe des superfluiden Phasenübergangs in begrenzter Geometrie
… There are several discrepancies for finite systems. Especially it is still unknown, whether scaling is valid for finite systems. Only a few theoretical results exist about the dynamics of finite systems. These results are either restricted to surface effects or to non-physical periodic …
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Computer Generation of Integral Images using Interpolative Shading Techniques
Research to produce artificial 3D images that duplicates the human stereovision has been ongoing for hundreds of years. What has taken millions of years to evolve in humans is proving elusive even for present day technological advancements. The difficulties are compounded when real-time generation …
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Wave tailoring granular materials: effect of randomness and plane wave propagation
… dimensional structures. In the case of 2D and 3D monodisperse granular media, we demonstrate an equivalence with 1D chains and consequently derive the relation between wavefront speed and force amplitude in higher dimensional systems. Subsequent normalization results in a universal wavefront …
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A two-stage design framework for optimal spatial packaging of interconnected fluid-thermal systems
Optimal spatial packaging of interconnected subsystems and components with coupled physical (thermal, hydraulic, or electromagnetic) interactions, or SPI2, plays a vital role in the functionality, operation, energy usage, and life cycle of practically all engineered systems, from chips to ships to …
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