Essays about: "Kärnan"

Showing result 16 - 20 of 197 essays containing the word Kärnan.

  1. 16. Methane Sulphonic Acid in East Antarctic Coastal Firn and Ice Cores and Its Relationship with Chlorophyll-a and Sea Ice Extent in the Southern Ocean

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Emma Nilsson; [2022]
    Keywords : methane sulphonic acid; firn cores; sea ice proxy; marine primary productivity; Fimbul Ice Shelf; Dronning Maud Land; metansulfonsyra; firnkärnor; havsis-proxy; marin primärproduktion; Fimbulisen; Dronning Maud Land;

    Abstract : The seasonal retreat of sea ice in the austral spring and summer around Antarctica has a significant effect on phytoplankton activity, mainly due to light availability, meltwater input of dissolved iron, and surface water stratification. Phytoplankton produce dimethylsulfoniopropionate, the precursor to the climate-cooling gas dimethyl sulphide, which is ventilated to the atmosphere and oxidised to methane sulphonic acid (MSA). READ MORE

  3. 17. Development of an Investigation Method to Analyse Effect of Laser Cutting on Iron Losses in an Electric Machine

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

    Author : Rishabh Raj; [2022]
    Keywords : Electrical machine; iron losses; laser cutting; loss models; manufacturing defects; single sheet tester; Elektrisk maskin; järnförluster; laserskärning; förlustmodeller; tillverkningsfel; enplåtsprovare;

    Abstract : In this fast pace world, climate change is one of the primary concerns worldwide. The world is racing towards reducing CO2 emissions by focusing on decreasing energy consumption. Electric motors capture about two-third of the industrial energy consumption, of which the most growing sector is electrical vehicles. READ MORE

  4. 18. Data-Driven Motion Planning : With Application for Heavy Duty Vehicles

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

    Author : Oscar Palfelt; [2022]
    Keywords : Motion planning; Deep learning; Autonomous driving; Nonuniform sampling; Rörelseplanering; Djupinlärning; Autonom körning; Ojämn provtagning;

    Abstract : Motion planning consists of finding a feasible path of an object between an initial state and a goal state, and commonly constitutes a sub-system of a larger autonomous system. Motion planners that utilize sampling-based algorithms create an implicit representation of the search space via sampling said search space. READ MORE

  5. 19. Building and Training a Fully Connected Deep Neural Network From Scratch

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

    Author : Axel Berglund; [2022]
    Keywords : Deep Neural Network; Machine Learning; Gradient Decent; MNIST.;

    Abstract : Artificial Neural Networks make up the core of mostMachine Learning algorithms. In the past decade Machine learninghave successfully taken on fields such as image recognition,Data analytics and medical technologies. READ MORE

  6. 20. Investigation of case hardened steel subjected to torsion: An experimental and numerical elastic-plastic material study

    University essay from KTH/Hållfasthetslära

    Author : Jonathan Fridstrand; [2022]
    Keywords : Torsion; Shear stress-strain relation; Elastoplastic material; Case hardened steel; Custom material model; Vridning; Skjuvtöjning och -spänning; Elastiskt-plastiskt material; Sätthärdat stål; Anpassad materialmodell;

    Abstract : There is currently a knowledge gap regarding the plastic material properties of many steel types that Atlas Copco use in their high torque power tools. This makes it difficult to fully utilise the capabilities of the Finite Element Method (FEM) to aid the developmental process. READ MORE