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 77 for “"RRT"”.
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A Strategy to Increase the Utilization of RRT
… ICU admissions, indicating that MET/RRT continue to be underused (Lee et al 1995). The ambition of this work is to identify factors that impact nurses’ effective use of the MET or RRT and develop strategies to overcome them.</p>
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Human-automation collaborative RRT for UAV mission path planning
… known as the Rapidly exploring Random Tree (RRT) algorithm for path planning. While capable of finding feasible solutions quickly, it is unclear how well a human operator will be able to supervise a team of UAVs that are planning based on such a randomized algorithm, particularly due to the …
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Human-RRT collaboration in Unmanned Aerial Vehicle mission path planning
… algorithm called Rapidly exploring Random Tree (RRT). This randomized sampling algorithm finds fairly short feasible paths, and it finds them efficiently, however human operators supervising UAV missions may have difficulty collaborating with a randomized algorithm. This thesis presents the …
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The role of intuition in nurses who activate the Rapid Response Team (RRT) in medical-surgical and telemetry units
… "Nurses viewed the Rapid Response Team (RRT) as a way to call for help when they knew something was wrong, especially when they could not pinpoint the cause" (p. 268). This study and other evidence suggest that additional research is needed to better understand nurses' perspectives of …
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Sampling-based path planner for guided airdrop in urban environments
… and cities. This thesis presents the Rewire-RRT algorithm for parafoil terminal guidance. The algorithm uses Rapidly-Exploring Random Trees (RRT) to efficiently search for feasible paths through complex environments. Most importantly, Rewire-RRT provides a mechanism to build and rewire the …
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Clinical profiles and outcomes of patients receiving acute renal replacement therapy in the cardiac intensive care unit at a South African tertiary centre
… patients receive Renal Replacement Therapy (RRT). The clinical profiles and outcomes of CICU patients receiving RRT in resource constraint settings like South Africa is unknown. Objectives The objectives of this study were to determine the clinical profiles and outcomes of patients receiving …
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Motion Planning For Autonomous Vehicles In Non-Signalized Intersections
… of accidents. Rapidly Exploring Random Trees (RRT) is a widely adopted algorithm in robotics for motion planning due to its simplicity and probabilistic completeness. Over the years, researchers have made modifications to the basic RRT algorithm to improve its performance in dynamic …
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Path planning for autonomous parafoils using particle chance constrained rapidly-exploring random trees in a computationally constrained environment
… constrained rapidly-exploring random trees (PCC-RRT) is a sampling-based path-planning algorithm which uses particles to approximate an uncertainty distribution. In this thesis, we study the use of PCC-RRT on an autonomous parafoil. Specifically, we explore the behavior of PCC-RRT in a …
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Improving failure to rescue outcomes : a rapid response team program review
… decline and initiation of a Rapid Response Team (RRT) are necessary for improved patient outcomes, decreased length of stay, and decreased mortality (AHRQ, 2018; Andersen et al., 2019; Burke et al., 2022; IHI, 2022). According to the AHRQ (2019), complications of medical care are unavoidable, and …
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Effect of renal replacement therapy on acute kidney injury in sepsis patients
… the kidneys fail, renal replacement therapy (RRT) may be performed in order to sustain the functionality of the kidneys and overall ameliorate patients' outcomes. The goal of this work is to determine the relationship between undergoing RRT and patient outcome. The Philips-MIT eICU …
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Robust sampling-based motion planning for autonomous vehicles in uncertain environments
… in particular rapidly-exploring random trees (RRT), the proposed algorithms can efficiently evaluate and enforce complex robustness conditions. For linear systems under bounded uncertainty, a sampling-based motion planner is presented which iteratively tightens constraints in order to guarantee …
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Decentralized path planning for multiple agents in complex environments using rapidly-exploring random trees
… Multi-Agent Rapidly-exploring Random Tree (DMARRT) algorithm, is an extension of the CL-RRT algorithm to the multi-agent case, retaining its ability to plan quickly even with complex constraints. Moreover, a merit-based token passing coordination strategy is also presented as a core component …
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Sampling-based algorithms for optimal path planning problems
… (PRM) and the Rapidly-exploring Random Tree (RRT) algorithms, have been demonstrated on several robotic platforms, and found applications well outside the robotics domain. However, a large portion of this research effort has been limited to the classical feasible path planning problem, which …
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A perception-guided approach to motion and manipulation planning
Rapidly-Exploring Random Trees (RRT) have been successfully applied to many different robotics systems for motion and manipulation planning under non-holonomic constraints. However, the conventional RRT algorithm may perform poorly in the presence of noise and uncertainty. This thesis proposes a …
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Modeling and control of a robot manipulator
… Random Trees planning algorithm namely, basic RRT, RRT Ball and RRT_ are compared. Results obtained show that RRT_ is more suitable than RRT and RRT Ball in terms of the length and the consistency of the trajectories produced. A Force Angle stability measure is used to guide the robot arm into …
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Robust planning for autonomous parafoil
… rapidly exploring random tree (CC-RRT) [1] algorithm, this planner, CC-RRT with Analytic Sampling, considers the non-linear dynamics, as well as the under-actuated control authority of the parafoil by construction. Additionally, CC-RRT with Analytic Sampling addresses two important …
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Predictive Path Planning For Vehicles at Non-signalized Intersections
… resources. Rapidly-exploring Random Tree (RRT) as an effective local path planning methodology can determine a feasible path in the static environment. Few improvements are proposed to adopt the RRT to the non-signalized intersections. Gaussian Processes Regression (GPR) is used to predict …
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A robust motion planning approach for autonomous driving in urban areas
… sampling-based motion planning algorithm, Robust RRT, that is designed specifically for large robotic vehicles and uncertain, dynamic environments. Five main extensions have been made to the original RRT algorithm to improve performance in this type of applications. The closed-loop system is used …
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Patient’s experience with home hemodialysis: a qualitative study
… does the need for a renal replacement therapy (RRT). Increasing patient age, medical complexity, and a shortage of organs for transplantation are contributing factors to the rise of patients starting a RRT known as dialysis. The purpose of this research was to explore the patient experience …
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Exploring constraint removal motion planners
… and the family of iterative obstacle removing RRTs (IOR-RRTs). This family of algorithms operate similarly to the RRT but iteratively tolerate more collisions in trying to identify a path. One member of the family that performs well is the search informed IOR-RRT. This search technique first …
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