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 16 of 16 for “"collision probability"”.
-
Neutronic analysis of selected fuel assemblies of the MIT BEAVRS benchmark using HEADE collision probability code
… BEAVRS benchmark are developed using the HEADE collision probability code which is a module of the OSCAR-4 code used for research reactor calculations. This research study is based on the MIT BEAVRS benchmark, which is a specification of a Pressurized Water Reactor (PWR). The neutronics models …
-
Enhanced Collision Resolution for the IEEE 802.11 Distributed Coordination Function
… whose size is doubled if a station suffers a collision and reset to its minimum value after a successful transmission. BEB doubles the CW size upon collision to reduce the collision probability in retransmission. However, this CW increase reduces channel access time because stations will spend …
-
Resource Allocation in 5G: NR Sidelink Mode 2 & Wi-Fi 6/7
… proposes a novel SPS PRR model incorporating MAC collisions based on new features in NR SL. We extend our model by loosening several simplifying assumptions made in our initial modeling. The extended models illustrate how the PRR is affected by various SPS parameters. The computed results are …
-
Autonomous navigation in unknown environments using machine learning
… Our first contribution is to develop a model of collision probability to predict the outcomes of actions that extend beyond the perceptual horizon. We use this collision probability model as a data-driven replacement for conventional safety constraints in a receding-horizon planner, resulting in …
-
thesis in the field of Mechanical Engineering: Relevance for Human-Robot Collaboration: Definitions, Systems, Algorithms, and Applications
… times, while two new safety metrics—Critical Collision Probability (CCP) and Average Collision Probability (ACP)—quantify reduced collision risks in Human-Robot Collaboration (HRC). Additionally, a relevance-driven framework integrates relevance quantification with dynamic scene understanding …
-
Integrated motion planning and model learning for mobile robots with application to marine vehicles
… the duration of the motion plan with the probability of colliding with obstacles. This thesis develops fast analytic algorithms for predicting the collision probability due to model uncertainty and random disturbances in the environment for a planar holonomic vehicle such as a marine …
-
A hardware testbed for measuring IEEE 802.11g DCF performance
… full-connectivity between stations, constant collision probability and perfect channel conditions. Many authors have extended Bianchi's machine model to correct certain inconsistencies with the standard, while very few have considered alternative workload models. Owing to the complexities …
-
On Wireless Local Area Networks
… Chapter 2 is the assumption that the conditional collision probability is constant and independent of the transmission history that is revealed by the back-o stage (the collision-decoupling assumption). Chapter 3 analyzes the relationship between the conditional collision probability and the …
-
Direct multidisplay for web document repositories
… chosen very carefully to avoid undesirably large collision probability. Some good values are suggested based on our experiments.</p>
-
Spectrum sharing systems for improving spectral efficiency in cognitive cellular network
… SBS, subject to maximum SBS transmit power and collision probability constraint at the primary receivers. Since optimal EE and SE are two contradicting objectives to obtain the transmit power allocation, the design approach to handle both EE and SE as a function of common network parameter, …
-
Gas-solid transport and reaction via intervened evaporating sprays
… of solids wetting and solid-droplet collision probability distributions from spray impingement onto free-fall particles. This feed-zone modeling, quantifying liquid feed trajectory, droplet vaporization, gas-solid transport and vapor cracking, is capable to provide hydrodynamic and …
-
Debris collision avoidance maneuver optimization (CAMO) for satellite constellations
… and future satellite constellations. Traditional collision avoidance strategies, which typically rely on single-impulse maneuvers executed in response to ground-based warnings, often suffer from high propellant costs and operational inefficiencies due to late detection and reaction times. This …
-
Probabilistic motion planning and optimization incorporating chance constraints
… straight-line seed trajectories has very high collision rate despite its high planning speed. To the best of our knowledge, this is the first work that presents such a systematic and comprehensive evaluation of state-of-the-art motion planners, which are based on a significant amount of …
-
Conservation in a changing world: assessing the conservation status of an agriculturally adapted species, the blue crane
… focus on one of the key threats to Blue Cranes, collision with powerlines. For two years I conducted quarterly surveys for dead birds along powerlines in the Karoo, and annual surveys in two areas in the Western Cape wheatlands (Overberg and Swartland), where agricultural activity prevented …
-
Large-Scale Machine Learning for Classification and Search
… matrix can be considered as a transition probability between two data points through Markov random walks. 2. Large-Scale Semi-Supervised Learning: We employ Anchor Graphs to develop a scalable solution for semi-supervised learning, which capitalizes on both labeled and unlabeled data to …