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 101 for “"geometric features"”.
-
Influence of the city geometric features on the two fluid model parameters
… Some of these variables relate to the network's geometric features; some of these variables reflect the characteristics of the vehicles, drivers and pedestrians using the network. The Two Fluid Model was introduced to help evaluate the quality of traffic service in urban street networks. The …
-
Reconstruction of three-dimensional facial geometric features related to fetal alcohol syndrome using adult surrogates
… of growth abnormalities and abnormal facial features. Direct anthropometry has traditionally been used to obtain facial data to assess the FAS facial features. Research efforts have focused on indirect anthropometry such as 3D surface imaging systems to collect facial data for facial …
-
Refining and Expanding the Feature Stamping Process
… model to simulate the addition of man-made features such as channels, embankments and pits, he must modify the terrain data to include these features. Doing this by hand is tedious and time consuming. In 2001 Christensen implemented a tool in the Surface-water Modeling System (SMS) software …
-
Late Complications in the Descending Aorta Following Valve-Sparing Root Replacement (VSRR) in Marfan Syndrome (MFS) Patients: A Computational Analysis
… descending aorta (DA) following root surgery. Geometric factors related to either native anatomy or the root surgery may alter hemodynamic factors in the DA, potentially predisposing it to dissection. This study uses computational fluid dynamics (CFD) simulations alongside statistical shape …
-
Unsteady Flow Behaviors Generated by Three-Dimensional Lattice Geometries as Measured by Laser Doppler Velocimetry
… cannot cause flow unsteadiness. Accordingly, new geometric models are needed to improve the heat transfer enhancement. Three-dimensional (3D) lattice geometries with a range of features and sizes can be created using additive manufacturing (AM) techniques. The main objective of the study is to …
-
How Does Vegetation Movement During Laser Scanning Affect Common Point Cloud-Derived Metrics? A Virtual Laser Scanning Study
… leaf flutter. Height metrics, voxel metrics, geometric features, and leaf area are calculated from the simulated single-tree laser scanning point clouds and compared across the motion scenarios. Furthermore, the effects of point cloud filtering on terrestrial laser scanning (TLS) data are …
-
Analysis of errors in generative image and video models
… distinguished from real images by derived geometric features alone without looking at pixels. Then, we introduce methods that can effectively judge whether a generated video is physically plausible for robotic demonstrations.
-
Recobrimentos no espaço hiperbólico e percolação na árvore binária estendida
… binary tree, a simple structure that exhibits geometric features of hyperbolic spaces: a non-vanishing surface-volume ratio, the latter being compact. The violation of Euclid s fifth postulate, assuring the possibility of an infinity of paralel to a given ray meeting at a point, allows for a …
-
A complete geometric and topologic file structure
… process planning is performed, primitive geometric data from CAD databases needs to be converted to higher-level feature information required by the CAM systems. Many feature recognition algorithms have been developed to extract geometric features from different CAD representation schemes. …
-
On Aerothermal Optimization of Low-Pressure Steam Turbine Exhaust System
… of fluid variables. It can select sensitive geometric features from surface meshes by Graph Neural Networks (GNNs) encoder according to the back-propagated prediction error, which reduces uncertainties caused by manual parameterization and gains the ability to process designs defined by …
-
A robust variable order facet model for image data
… robustness properties, and preserves the main geometric features of an image surface: step edges, roof edges and corners.
-
Identification of risk factors for crashes involving older drivers
The focus of thesis is to evaluate the role of geometric features and traffic operations related characteristics on the involvement of the older drivers in motor vehicle crashes. Examples of potential factors influencing older driver crashes include intersection/roadway geometrics, type of traffic …
-
An Urban Edge for Innovation & Reservation: create a figurative stage for students to perform their lives
… conceived to: a. emphasize both axial and radial geometric features of the site; b. redefine the edge of the oval Drillfield; c. create magnetic force between the proposed building and the existing War Memorial Chapel; d. translate the idea into tectonics.
-
Additive Manufacturing for Phase Change Thermal Energy Storage and Management
… change material thermal energy storage into geometrically complex designs for advanced thermal management. This work contributes to the emerging field of research by reporting on the production of composite thermoplastic/phase change material filaments for fused filament fabrication …
-
Prediction Of Optical Properties Of Plasmonic Composites: Applications To Solar Energy Harvesting
… to be controllable through the variation of the geometric features and/or concentration of the nanoparticles in the suspension.
-
Algorithms for Bivariate Singularity Analysis
… theorems in the bivariate case that classify the geometric features salient to the analysis. These characterization theorems are then used to produce an algorithm for this analysis in the bivariate case. A full implementation of the algorithm follows.
-
TOWARDS MODELING DRIVER BEHAVIOR UNDER EXTREME CONDITIONS
… flow on a stretch of highway with simplified geometric features. The vehicle trajectories and aggregate traffic properties are evaluated with respect to different scenarios through a sensitivity analysis.
-
Better embeddings for Planar Earth-Mover Distance over sparse sets
… between sets of points, e.g., bags of geometric features. We present a collection of embeddings with the property that their distortion and/or host-space dimension are parametrized by the size (or the sparsity) of the embedded sets s. Our specific results include: -- An O(log …
-
Machine-Vision-Based Pose Estimation System Using Sensor Fusion for Autonomous Satellite Grappling
… the satellite pose using three types of natural geometric features: circles, lines and points, and it merges data from two monocular cameras and three different algorithms (one for each type of geometric feature) to increase the robustness of the pose estimation. It is assumed that the satellite …
-
Manipulation-Driven Adaptation for Enhancing Mobile Robot Efficiency and Versatility
… to adapt the vehicle by exploiting geometric features and permanent magnets. A new robot system that uses its manipulator to swap between propulsors/anchors is created. This work experimentally demonstrates and quantifies how this manipulation-driven adaptation method provides a …
Page 1 of 6