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 39 for “"digital model"”.
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Digital model reference aircraft control
A digital model reference scheme is presented for the control of the longitudinal modes of an EBF-STOL aircraft. The method used is based on Liapunov's direct method and is used to update feedback and feedthrough matrices. An equilibrium point of the EBF-STOL is chosen about which to constrain …
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3D digital model reconstruction of insects from a single pair of stereoscopic images
… thesis proposes a robust method of creating a 3D digital model of an object through stereoscopic reconstruction. There are existing methods and tools for achieving this, but they tend to only perform well under favorable conditions, such as specializing to a specific class of objects or requiring …
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Knitting behavior : a material-centric design process
… device between the physical and the digital, establishing a conversation between a material assembly and a digital model as a tool to inform the logic of the assembly's internal organization. In this research, the material assembly, which is defined as a material whose properties …
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A Numerical Elastic Model for Deforming Bat Pinnae
… this time-variance using numerical methods, a digital model that is capable of representing the pinna geometry during the entire deformation cycle has been developed. Due to large deformations and occlusions, some of the surfaces relevant to sound diffraction may not be visible and the geometry …
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Multiphysics Modeling Of Devices For Whole Organ Healthcare Applications
… devices, it is critical to develop computational models built from engineered models of 3-dimensional objects. This thesis established a scanning procedure to engineering 3D digital model for whole organs, known as template engineering. The resultant scanning data enabled designing, manufacturing, …
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Design of a small folding Table for a wheelchair
… table concept and key details, while a detailed digital model for the final design was developed. Because the market for such a product is very small, the table will be manufactured by CNC machining and it will cost upwards of $100.
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The Assessment of Rapid Palatal Expansion Using a Remote Monitoring Software
… correction measured by DM were compared to digital models and intraoral measurements. Patient acceptance of the DM app was evaluated with a survey. Results: Out of the 30 patients enrolled, 20 patients completed the study. DM accurately assessed the correction of posterior crossbite. There …
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Design for assembly : a computational approach to construct interlocking wooden frames
… in any sequence. Given a three dimensional digital model of an interlocking frame, the feasibility of the disassembly sequence can be assessed by analyzing the geometric contact constraints between each member. The assembly sequence can then be obtained by reversing the disassembly sequence, …
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Development of A Micro-Scale Impact Tester for Characterizing Dynamic Properties of Biological Structural Materials
… aided design was then utilized to create a digital model of the entire system before production began on the device. Within the scope of this project was the development of a large-scale projectile impact tester as a proof of concept of the system's design that would later be utilized by …
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Built Heritage Interface Models Multipurpose information access and data exchange
The research investigates models as interfaces to the built heritage, intended as representation forms and strategies for multipurpose information access and data exchange to enhance collaboration among practitioners and promote communication with stakeholders and generic audiences. After analyzing …
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Design and fabrication of an open-architecture selective laser melting system
… as determined by a three-dimensional digital model. AM allows for freeform geometries and optimized structures that are impractical or impossible to create with traditional manufacturing practices. Among several mainstream AM methods, powder bed fusion is compatible with both plastics …
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Tracking Human Movement Indoors Using Terrestrial Lidar
… have greatly enhanced our ability to model and analyze both outdoor and indoor environments. This research advances the traditional concept of digital twins—static representations of physical spaces—by integrating real-time data on human occupancy and movement to develop a dynamic …
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Examining the taphonomic challenges to the 3D digitisation of fragmented bone
… is becoming an increasingly useful tool for the digital documentation and metric analysis of archaeological artefacts and skeletal remains. It provides public access to rare and fragile specimens of palaeontological and palaeopathological importance whilst reducing the physical impact on these …
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Examining the taphonomic challenges to the 3D digitisation of fragmented bone
… is becoming an increasingly useful tool for the digital documentation and metric analysis of archaeological artefacts and skeletal remains. It provides public access to rare and fragile specimens of palaeontological and palaeopathological importance whilst reducing the physical impact on these …
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High-throughput extrusion-based additive manufacturing
… objects layer by layer from a three dimensional digital model, is gaining significance due to its ability to create unique geometries and/or novel material compositions while spanning a wide range of length scales. However, the viability of using AM for the production of end-use parts hinges on …
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Exploration of metal 3-D printing technologies for the microfabrication of freeform, finely featured, mesoscaled structures
… difference between the printed part and the digital model.
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Integrating digital design and fabrication and craft production
… of physical materials and processes that hinder Digital Design and Fabrication (DDF). Indeterminacies in physical materials and processes are considered to be errors that prevent DDF from achieving its stated goal of a seamless transition from digital model to physical artefact. One of the …
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Orthodontic Outcomes in Class II Correction with Elastics: Clear Aligners Versus Fixed Appliances
… included lateral cephalometric tracings, 3D digital model analysis, and additional treatment factors such as IPR. Linear regression was used to compare post-treatment variance by adjusting for pre-treatment values. Effect of appliance type on each parameter is represented by the coefficient …
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Playtesting Educational Architecture
… Playtesting in this project involves porting a digital model of of the building into a game engine, and allowing a designer or user to interact by moving around the model with a controller. This "playtesting" process allows a designer to gather meaningful and informative feedback from users …
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