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 25 for “"direction of travel"”.
-
Visual perception of moving objects: Effects of velocity and direction
… the relation between changes in velocity and direction of travel on the perception of a moving object. The effect of these changes on time-to-contact judgements was also investigated. Despite the extensive literature studying the perception of velocity, no substantive conclusions can be drawn …
-
The relationship between travel and won/loss records and performance measures in Major League Baseball
… will attempt to examine the relationship between travel (i.e. number of miles traveled, number of time zones crossed, direction of travel, and game number at home or on the road) and the performance of professional baseball teams (i.e. won/loss, runs scored, hits, errors committed, double plays …
-
Sensor Networks: Studies on the Variance of Estimation, Improving Event/Anomaly Detection, and Sensor Reduction Techniques Using Probabilistic Models
… is governed by the physical placement of sensors and their geometric relationship to the events they measure. To illustrate this, the entirety of this thesis covers the following interconnected subjects: 1) graphical analysis of the variance of the estimation error caused by physical …
-
MODELING THE INFLUENCE OF THE HETEROGENEOUS SUBSTRATE ON THE TRANSPORT OF THE JET FUEL SOLUTE PLUME, KIRTLAND AIR FORCE BASE, ALBUQUERQUE, NEW MEXICO
… was developed to characterize the influence of heterogeneity on solute phase plume migration of the Jet Fuel spill of Kirtland Air Force Base. Core –logs from KAFB boreholes were compiled, and lithology was interpolated across the study area using transition probability geostatistics …
-
A measurement of the atmospheric neutrino flux and oscillation parameters at the Sudbury Neutrino Observatory
… muon events are analyzed as a function of their direction of travel through the Sudbury Neutrino Observatory. Based on simulations and previous measurements, muons with a zenith angle of 1 < cos([theta]zenith) < 0:4 are selected as atmospheric neutrino-induced muons. A two-neutrino …
-
Robot Navigation in Cluttered Environments with Deep Reinforcement Learning
<p>The application of robotics in cluttered and dynamic environments provides a wealth of challenges. This thesis proposes a deep reinforcement learning based system that determines collision free navigation robot velocities directly from a sequence of depth images and a desired direction of …
-
Nanofluidic system for single molecule manipulation and analysis
… characterizing and controlling the translocation of single 48.5 kbp [lambda]-DNA molecules through an artificial nanopore with the objective of enabling multiple measurements on the same molecule. This approach may enable nanopore sensors with enhanced size or charge resolution through statistical …
-
Population, Home Range, and Dispersal of Red Foxes in East-Central South Dakota
… dispersal movements and summer home range of red foxes (Vulpes vulpes) were studied in east-central South Dakota during 1974 and 1975. The spring population density of foxes on a 23,319 ha study area declined from 9.2 families/township in 1974 to 7.6 families/township in 1975. Fifty-four …
-
Regional Variation in Migratory Behavior and Reproductive Output of The Gulf Of Mexico Blue Crab Spawning Stock
<p>The overarching goal of this research was to better understand the structure and boundaries of the blue crab stock(s) in the Gulf of Mexico, focusing on large-scale movements of spawning female crabs. Because spawning location is a primary determinant of larval transport pathways, understanding …
-
Human factors approach towards improving readability of bus schedules
Due to an increasing concern over the readability of existing bus schedules of a public transportation agency the schedule format was redesigned. Two prototype schedules were designed based on the gathered information from the literature survey, focus group meetings and data from other public …
-
Target Locating in Unknown Environments Using Distributed Autonomous Coordination of Aerial Vehicles
The use of autonomous aerial vehicles (UAVs) to explore unknown environments is a growing field of research; of particular interest is locating a target that emits a signal within an unknown environment. Several physical processes produce scalar signals that attenuate with distance from their …
-
Spatial Patterns and Variations of Tornado Damage as Related to Southeastern Appalachian Forests and Terrain from the Franklin County, Virginia EF-3 Tornado
… multiple times in recent years. The topography of this region leads to unique spatial patterns of tornado damage as the tornado vortices pass over ridges in forested areas, and this damage can be detected with vegetation indices derived from remotely sensed imagery. The objectives of this study …
-
Least Cost Path Modeling Between Inka and Amazon Civilizations
… efficient route between a start and end point, often in terms of shortest time or least amount of energy. The approach is often applied in archaeology to estimate locations of sites, and routes between them. We applied LCPA to estimate how sites in the Andes in the eastern portion of the Inka …
-
How do attitudes to careers and employment aspirations differ across generations?
… they make about careers. Through a series of twelve semi-structured interviews I have identified a range of factors which have shaped the direction of travel in both education and careers. By working with participants from across four age groups, ranging from 11 to 70, I have also been able …
-
Situationally driven local navigation for mobile robots
… computation each time the robot’s perception of the world changes. Due to the world’s uncertainties, creation and maintenance of navigation plans cannot involve arbitrarily complex processes, as the robot’s perception of the world will be in constant flux, requiring modifications to be made …
-
Survival, reproduction, and movements of translocated nuisance black bears in Virginia
… (P = 0.16). Vehicle collisions caused most of the mortality (53%), but legal harvest outside of the study area (16%) and illegal kills in the study area (11%) also were important. Female bears failed to reproduce in the first winter following translocation, but during the second winter mean …
-
Three-dimensional time-optimal path planning in dynamic and realistic environments
… for ocean prediction. These vehicles typically travel at speeds comparable to ocean currents, and their movement is significantly affected by these dynamic currents. Further, the speed of currents may vary greatly with depth. Hence, path planning to generate safe and fast vehicle trajectories in …
-
Linking Spatial Video and GIS
Spatial Video is any form of geographically referenced videographic data. The forms in which it is acquired, stored and used vary enormously; as does the standard of accuracy in the spatial data and the quality of the video footage. This research deals with a specific form of Spatial Video where …
-
A Galerkin Approach to Define Measured Terrain Surfaces with Analytic Basis Vectors to Produce a Compact Representation
The concept of simulation-based engineering has been embraced by virtually every research and industry sector (Sinha, Liang et al. 2001; Mocko and Fenves 2003). Engineering and science communities have become increasingly aware that computer simulation is an indispensable tool for resolving a …
-
Improving High Sensitivity GNSS Receiver Performance in Multipath Environments for Vehicular Applications
… errors. Multipath arises from the reception of reflected or diffracted signals in addition to the line-of-sight (LOS) signal, and is one of the most detrimental error sources in GNSS positioning applications. By using a block processing high sensitivity receiver scheme with more correlators …
Page 1 of 2