Essays about: "erosion"

Showing result 16 - 20 of 475 essays containing the word erosion.

  1. 16. Mercury accumulation in lake sediments on different time scales – the influence of algal primary production

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Anne Rebotzke; [2023]
    Keywords : mercury; lake sediment; primary productivity; algal scavenging; biogenic silica; diatom proxy; chlorophyll-a; organic matter;

    Abstract : The aim of this work is to test the proposed approach of algal scavenging as a driver of sediment mercury (Hg) on different time scales and to gain a better understanding of the mechanisms of Hg accumulation in lake sediments. A 3000-year sediment record from Nylandssjön in northern Sweden was analysed for this purpose, as well as a 20-year sediment record from the seasonal sediment traps of this lake. READ MORE

  3. 17. Dynamic Warning Signals and Time Lag Analysis for Seepage Prediction in Hydropower Dams : A Case Study of a Swedish Hydropower Plant

    University essay from Uppsala universitet/Datalogi

    Author : Lovisa Olsson; Julia Hellström; [2023]
    Keywords : hydropower; dam safety; dam monitoring; seepage; prediction models; data-driven methods; artificial intelligence; AI;  linear regression; Support Vector Regression; SVR; Long Short-Term Memory; LSTM;

    Abstract : Hydropower is an important energy source since it is fossil-free, renewable, and controllable. Characteristics that become especially important as the reliance on intermittent energy sources increases. However, the dams for the hydropower plants are also associated with large risks as a dam failure could have fatal consequences. READ MORE

  4. 18. Fault Detection and Diagnosis for Automotive Camera using Unsupervised Learning

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Ziyou Li; [2023]
    Keywords : Unsupervised Learning; Autoencoders; Image Clustering; Fault Detection and Diagnosis; Morphological Operations; Hardware-in-Loop; Advanced DriverAssistance System; Oövervakad inlärning; Autoencoders; Bildklustering; Felfindning och Diagnostik; Morfologiska Operationer; Hardware-in-Loop; Avancerade Förarassistanssystem;

    Abstract : This thesis aims to investigate a fault detection and diagnosis system for automotive cameras using unsupervised learning. 1) Can a front-looking wide-angle camera image dataset be created using Hardware-in-Loop (HIL) simulations? 2) Can an Adversarial Autoencoder (AAE) based unsupervised camera fault detection and diagnosis method be crafted for SPA2 Vehicle Control Unit (VCU) using an image dataset created using Hardware-inLoop? 3) Does using AAE surpass the performance of using Variational Autoencoder (VAE) for the unsupervised automotive camera fault diagnosis model? In the field of camera fault studies, automotive cameras stand out for its complex operational context, particularly in Advanced Driver-Assistance Systems (ADAS) applications. READ MORE

  5. 19. One-Party Dominance and Democratic Backsliding in Botswana and Tanzania: Whither Peace and Development?

    University essay from Linnéuniversitetet/Institutionen för samhällsstudier (SS)

    Author : Issa Noor Omary; [2023]
    Keywords : One-party Dominance Dominant Party System; Dominant Party; Substantive Democracy; Democratic Backsliding; Third Wave of Autocratisation; Path-Dependence; Peace and Development; Botswana; Tanzania;

    Abstract : Over the past decade, a third wave of autocratisation has stormed the world, hitting democracies and autocracies alike. The ongoing democratic backsliding is attributed to a range of factors. From “executive aggrandisement” and strategic manipulation of elections to "autocratic lawfare”. READ MORE

  6. 20. Climate adaptation to urban heat : A study of how Swedish municipalities with larger cities are adapting to warmer temperatures through urban planning

    University essay from Linköpings universitet/Tema teknik och social förändring

    Author : Elin Kindberg; [2023]
    Keywords : Climate adaptation; Municipal planning documents; Urban heat; Urban planning;

    Abstract : The world is currently facing a changing climate and the various negative effects that it entails. In recent decades, enhanced climate adaptation responses have therefore become increasingly common across the world. READ MORE