Essays about: "SF6"

Found 4 essays containing the word SF6.

  1. 1. Reactive Ion Etching of Silicon using F-based chemistry - Exploring the Limits

    University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Author : Harald Havir; [2018]
    Keywords : Reactive Ion Etching; Plasma Etching; CHF3; SF6; High Anisotropy; Physics and Astronomy;

    Abstract : Dry Etching is widely used in nanoprocessing as a method of pattern transfer onto a hard substrate, like silicon. Improving the resolution of this etch process is an important step in reducing the feature size in, for instance, computer microchips, or Nanoimprint Lithography stamps. READ MORE

  2. 2. Lightning Impulse Breakdown Tests : Triggered Spark Gap Analysis

    University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Author : John-Levi Nyberg; [2017]
    Keywords : Lightning; Impulse; Spark Gap;

    Abstract : This project was made by student from UmeåUniversity and a request from the universityETH in Zürich, Switzerland. In this research project the electrical strengthof different natural gases and mixtures was investigated, and the aim was to finda gas or gas mixture with a natural origin or strongly attaching gases that couldreplace SF6 (Sulfur Hexafluoride). READ MORE

  3. 3. Methane production from dairy cows : relations between enteric production and production from faeces and urine

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Agnes Willén; [2011]
    Keywords : methane emission; enteric; faeces; urine; dairy cow; feed regime; peas; legumes; grass silage;

    Abstract : Methane (CH4) is a greenhouse gas (GHG) that contributes to the global warming. One of the largest sources of methane is livestock, preferably ruminants which alone counted for 30% of the total agricultural anthropogenic methane emissions in the year of 2000. READ MORE

  4. 4. Metanproduktion hos mjölkkor utfodrade med hög andel grovfoder

    University essay from SLU/Dept. of Animal Nutrition and Management

    Author : Rebecca Danielsson; [2009]
    Keywords : Metan; Grovfoderandel;

    Abstract : Metan (CH4) är en växthusgas som bildas vid bland annat idisslarnas foderomvandling. Metan bidrar till den globala uppvärmningen samtidigt som det utgör en energiförlust för idisslaren. Syftet med den här studien var att undersöka hur mycket metan det bildas med olika andelar grovfoder i foderstaten. READ MORE