Essays about: "Spline"

Showing result 1 - 5 of 78 essays containing the word Spline.

  1. 1. Physiology-Guided Machine Learning for Improved Reliability of Non-Invasive Assessment of Pulmonary Hypertension

    University essay from Linköpings universitet/Avdelningen för medicinsk teknik

    Author : Frida Hermansson; [2023]
    Keywords : Pulmonary Hypertension; pulmonary hypertension; improving; physiological-guided; machine learning; neural networks; NN; artificial neural networks; non-invasive; PH; tricuspid regurgitation; peak tricuspid regurgitation velocity; tricuspid regurgitation velocity; right ventricular systolic pressure; VGG16; Unet; TR-CNN; CNN; pulmonell hypertension; förbättra; fysiologisk-guidning; neurala nätverk; trikuspidal regurgitation; maximal trikuspidal regurgitation; icke-invasivt;

    Abstract : Diagnosing pulmonary hypertension (PH) with right heart catheterization (RHC) is associated with a risk for complications and high expenses, leading to late diagnoses [1]. Transthoracic echocardiography can be used to assess non-invasive indicators for PH such as right ventricular systolic pressure (RVSP), which can be estimated by combining the peak tricuspid regurgitation velocity (TRV) with the estimated right arterial pressure (RAP). READ MORE

  3. 2. Homogenization of a higher gradient heat equation: Numerical solution of the cell problem using quadratic B--spline based finite elements

    University essay from Karlstads universitet/Institutionen för matematik och datavetenskap (from 2013)

    Author : Samba Dumbuya; [2023]
    Keywords : Homogenization of a higher gradient heat equation; Two-scale expansion; fourth-order cell problem; temperature distribution; quadratic B-spline; finite element methods; effective conductivity vs volume fraction;

    Abstract : This study focuses on the numerical solution of a fourth-order cell problem obtained through a two- scale expansion approach applied to a higher gradient heat equation microscopic problem involving temperature distributions. The main objective is to investigate the temperature field within the macroscale domain and compute the effective conductivity using finite element methods. READ MORE

  4. 3. Quality Assurance through In-line Failure Detection by Vibration Analysis

    University essay from Mälardalens universitet/Akademin för innovation, design och teknik

    Author : Andrés Leonardo Gomero Paz; [2023]
    Keywords : Vibrations Analysis; FFT; Gear Hobbing; Tool Wear;

    Abstract : The production of faulty parts poses significant challenges for production facilities, as it leads to increased inventory levels, operating costs, and impedes overall productivity. Despite its fundamental nature, this issue remains prevalent in manufacturing operations. READ MORE

  5. 4. Spatial modeling with INLA for analysis of unequal care in Skåne

    University essay from Lunds universitet/Matematisk statistik

    Author : Julia Wierzchoslawska; [2023]
    Keywords : Mathematics and Statistics;

    Abstract : The objective of this thesis is to extend on a previous analysis of health care accessibility for patients diagnosed with a chronic disease in Region Skåne. The previous analysis resulted in a logistic mixed effects model having municipality as a random effect and age as a first-degree spline-function. READ MORE

  6. 5. Coverage Motion Planning for Search and Rescue Missions : A Costmap Based Approach for fixed wing UAVs using Simulated Annealing &Cubic Splines

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Author : Fredrik Rönnkvist; [2023]
    Keywords : Motion planning; Path planning; Cubic splines; Coverage path planning.;

    Abstract : The present study proposes a novel approach to Coverage Path Planning for unmanned aerial vehicle (UAV) inspired by the Orienteering Problem. The main goal is to develop an algorithm suitable for Search and Rescue Missions, which can produce a search pattern with dynamical constrains, that is not limited to the traditional back-and-forth motion or spiral patterns. READ MORE