Essays about: "Chemistry"

Showing result 1 - 5 of 523 essays containing the word Chemistry.

  1. 1. Composition methods related to chemistry and biology

    University essay from Göteborgs universitet/Högskolan för scen och musik

    Author : Óscar Calatayud-Gómez; [2020-06-17]
    Keywords : Music composition; composition methods; biology; chemistry; Crystallization; DNA; Brain Activity;

    Abstract : This master thesis presents three different methods of composing music with someprocesses, concepts and models from the fields of chemistry and biology, in which I haveresearched theoretically and practically in order to obtain and to generate the musicalknowledge for this work.Historically, one of the ways of obtaining and creating musical material and musicalnetworks has been the connection of music with other fields, such as literature, sculptureor maths. READ MORE

  2. 2. Complex REE zonations in metamorphic garnet reflect accessory mineral reactions

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Niclas Hultin; [2020-05-29]
    Keywords : Rare Earth Elements; REEs; Garnet; LA-ICP-MS; Sesia zone; Metamorphism;

    Abstract : A garnet from the Sesia Zone, NW Italy, was selected for Major and Rare Earth Element(REE) mapping, using LA-ICP-MS – a procedure previously not conducted at the Departmentof Earth Science at University of Gothenburg. The original inclusion assemblage of the garnetis preserved, and the mapping revealed two distinct changes in both garnet chemistry andinclusion assemblage, both which can be linked to the metamorphic development of theregion. READ MORE

  3. 3. Hydrological catchment analysis from characterisation of organic matter in stream water

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Hannes Berg Wiklund; [2020-02-05]
    Keywords : Organic matter; Time-of-flight mass spectrometry; aquatic chemistry; catchment hydrology;

    Abstract : Organic matter (OM) in aquatic systems is a complex field which have rapidly developed duringthe last decade due to the introduction of high resolution mass spectrometers. The compositionof OM in the aquatic environment is directly dependent on factors such as oxygen supply, pHand the flow rate in the local system. READ MORE

  4. 4. Archaeologic inspection of the Milky Way using vibrations of a fossil : Seismic, spectroscopic and kinematic characterization of a binary metal-poor Halo star

    University essay from Uppsala universitet/Observationell astrofysik

    Author : Amanda Byström; [2020]
    Keywords : Milky Way; Halo; galactic archaeology; asteroseismology; binary star; CEMP stars; CEMP-r s stars; stellar age; stellar mass; chemical abundance pattern; Gaia-Enceladus; Gaia-Sausage; Sequoia; spectroscopy; metal-poor;

    Abstract : The Milky Way has undergone several mergers with other galaxies during its lifetime. The mergers have been identified via stellar debris in the Halo of the Milky Way. The practice of mapping these mergers is called galactic archaeology. To perform this archaeologic inspection, three stellar features must be mapped: chemistry, kinematics and age. READ MORE

  5. 5. Resolving temporal links between the Högberget granite and the Wigström tungsten skarn deposit in Bergslagen (Sweden) using trace elements and U-Pb LA-ICPMS on complex zircons

    University essay from Lunds universitet/Geologiska institutionen

    Author : Anders Plan; [2020]
    Keywords : Bergslagen; Wigström; Högberget; geochronology; geochemistry; U-Pb; REE; trace element; zircon; hydrothermal zircon; LA-ICPMS; SEM; skarn; tungsten; wolfram; scheelite; deposit; ore; critical raw material; Earth and Environmental Sciences;

    Abstract : Combined U-Pb and REE trace element LA-ICPMS analyses were performed on zircons, from the scheelite-bearing Wigström skarn, associated micro-granitic dykes and the highly evolved parental Högberget (sensu stricto) granite. Combined systematic of zircon typology and microtextures, trace elements and isotopic chemistry suggest the presence of several diverse zircon types, spanning from early- to late- magmatic stage into a hydrothermal stage. READ MORE