Essays about: "Hg"

Showing result 16 - 20 of 72 essays containing the word Hg.

  1. 16. Assessing the biodiversity crisis within the Triassic-Jurassic boundary interval using redox sensitive trace metals and stable carbon isotope geochemistry

    University essay from Lunds universitet/Geologiska institutionen

    Author : Halla Margrét Viðarsdóttir; [2020]
    Keywords : Stenlille; Schandelah; redox conditions; C-isotopes; marine sediments; trace elements; enrichment factors; mass extinction; Triassic – Jurassic boundary; Earth and Environmental Sciences;

    Abstract : Around the Triassic-Jurassic-Boundary time interval, a severe mass extinction event occurred, which has been associated to volcanism of the Central Atlantic Magmatic Province (CAMP). Significant amounts of greenhouse gases as carbon dioxide (CO2) or methane (CH4) and other volatiles are suggested to have been released into the atmosphere, leading to global warming with subsequent impact on the biosphere. READ MORE

  3. 17. Styles of mineralization in the Nautanen IOCG deposit

    University essay from Luleå tekniska universitet/Geovetenskap och miljöteknik

    Author : Nils Edblom; [2020]
    Keywords : Nautanen; Aitik; Gällivare; Norrbotten; IOCG; NDZ; nautanen deformation zone;

    Abstract : Nautanen is an IOCG (Iron Oxide Copper Gold) deposit located in northern Sweden, 10 km north-east of the town Gällivare in the county of Norrbotten. It was mined for copper for seven years in the early 1900´s and is presently explored by Boliden Mineral AB. The deposit sits within a package of shoshonitic andesites of the Porphyrite group. READ MORE

  4. 18. Effects of “classical” vs. “dynamic” silviculture of sessile oak-dominated stands in terms of height, diameter increments and natural mortality

    University essay from SLU/Southern Swedish Forest Research Centre

    Author : Alexandru-Mihai Goia; [2020]
    Keywords : sessile oak; cleaning-respacing; thinning; stand silviculture; crop tree silviculture; mortality; growth; Romania;

    Abstract : Traditional oak silviculture in Romania is associated with high labor costs and long rotation cycles which are imposed by current norms and regulations. A small-scale R&D project, consisting of a block with four plots of 200 m2, was established in 2001 in a 15-year old sessile oak-dominated stand. READ MORE

  5. 19. Performance Evaluation of Imitation Learning Algorithms with Human Experts

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

    Author : Erik Båvenstrand; Jakob Berggren; [2019]
    Keywords : Imitation Learning; DAGGER; HG-DAGGER; Behavior Cloning; Machine Learning; TORCS; Imitationsinlärning; DAGGER; HG-DAGGER; Behavior Cloning; Maskininlärning; TORCS;

    Abstract : The purpose of this thesis was to compare the performance of three different imitation learning algorithms with human experts, with limited expert time. The central question was, ”How should one implement imitation learning in a simulated car racing environment, using human experts, to achieve the best performance when access to the experts is limited?”. READ MORE

  6. 20. BRAIN TUMOUR DETECTION USING HOG BY SVM

    University essay from Blekinge Tekniska Högskola

    Author : Praveena Pedapati; Rama Vaishnavi Tannedi; [2018]
    Keywords : Accuracy; Gradient; Histogram; Sensitivity; Specificity and True positive rate;

    Abstract : Detection of a brain tumour in medical images is always a challenging task. Factors like size, shape, and position of tumour vary from different patient’s brain. So, it's important to know the exact shape, size and position of a tumour in the brain making it a challenging task for detection. READ MORE