Sökning: "ion focusing"

Visar resultat 1 - 5 av 53 avhandlingar innehållade orden ion focusing.

  1. 1. New applications and developments of field-asymmetric ion mobility spectrometry - mass spectrometry (FAIMS-MS)

    Författare :Axel Mie; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; triazine; enantiomer; ion focusing; ion mobility; FAIMS; DMS; axial ion inlet;

    Sammanfattning : Field asymmetric ion mobility spectrometry (FAIMS), also commonly termed differential mobility spectrometry (DMS), is a gas-phase ion separation technology. FAIMS exploits differences in high-electric-field to low-electric-field ion mobility ratios to discriminate between ion species. LÄS MER

  3. 2. Detector Development, Source Characterization and Novel Applications of Laser Ion Acceleration

    Författare :Lovisa Senje; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Laser; Ion; Acceleration; Proton; Water; Sheath; Lifetime; Laser; Ion; Acceleration; Proton; Water; Radiolysis; Sheath; Detector; Fysicumarkivet A:2017:Senje;

    Sammanfattning : The main focus of the work presented in this thesis is on experimental studies oflaser acceleration of protons and other positive ions from solid targets. The topic is explored from three different angles: firstly, the development of diagnostics adapted to the ion pulses, secondly, the characterization of the source of the energetic particles and, finally, the application of laser-accelerated protons for time-resolved radiolysis of glass and water. LÄS MER

  4. 3. Sustainable Recycling of Spent Lithium-ion Batteries : An In-situ Approach for Recovery and Alloying of Valuable Metals

    Författare :Safoura Babanejad; Hesham Ahmed; Charlotte Andersson; Ari Jokilaakso; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Li-ion battery; black mass; Recycling; Pyrometallurgy; modeling; Process Metallurgy; Processmetallurgi;

    Sammanfattning : A large number of Li-ion batteries used today will reach their End-Of-Life (EOL) in a few years. After their EOL, the recovery of their precious elements is required. By applying physical separation, a fraction with fine particle size is left behind which is known as Black Mass (BM). LÄS MER

  5. 4. Simulating Functional Cycles and Drug Modulation in Ligand-gated Ion Channels

    Författare :Yuxuan Zhuang; Erik Lindahl; Grace Brannigan; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; ion channels; molecular dynamics; markov state model; lipid modulation; nicotinic receptor; protein conformational transitions; Biophysics; biofysik;

    Sammanfattning : Understanding the intricate motions and conformational changes that govern biological processes remains a fascinating and challenging endeavor. The research presented in this thesis aims to elucidate the dynamic processes underlying biological functions, specifically focusing on the dynamics of pentameric ligand-gated ion channels (pLGICs), which play a crucial role in signal transduction within the brain. LÄS MER

  7. 5. Mathematical Modelling of Cerebral Metabolism : From Ion Channels to Metabolic Fluxes

    Författare :Nicolas Sundqvist; Gunnar Cedersund; Maria Engström; Roland Nilsson; Sebastian Sten; João Duarte; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The brain is the most metabolically active organ in the human body and therefore rely on a continuous supply of oxygen and glucose. Neuronal stimulation in specific regions of the leads to the firing of action potentials, a process facilitated by voltage-gated ion channels in the neurons’ cell membranes. LÄS MER