Sökning: "puls metoden"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden puls metoden.

  1. 1. Magnetic relaxation studies of self-associating and membrane proteins

    Författare :Michael Gottschalk; Lund University Bioimaging Center; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; beta-lactoglobulin A; Biokemisk teknik; Biochemical technology; HEWL; BPTI; bacteriorhodopsin; protein self-association; membrane proteins; NMR; magnetic relaxation dispersion;

    Sammanfattning : Magnetic relaxation dispersion measurements have been performed on aqueous protein solutions to study the dynamics of waters in the proton transport channel of bacteriorhodopsin and the self-association of the proteins BPTI, lysozyme and beta-lactoglobulin. The measurements have focused on the bulk relaxation rates, R1 and R2, of three water nuclei 1H, 2H and 17O that are coupled to the protein environments by exchange and therefore report on properties such as the protein tumbling and dynamics of internal waters. LÄS MER

  3. 2. Enriching Automated Travel Diaries Using Biometric Information

    Författare :Robin C. O. Palmberg; Yusak O. Susilo; Gyözö Gidofalvi; Clas Rydergren; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transportsystem; Transport Systems;

    Sammanfattning : The methods for collecting travel data about travellers today incorporate either fully manual or semi-automatic elements, which makes the methods susceptible to errors. The travellers might respond subjectively rather than objectively or even wholly incorrect, albeit with or without purpose. LÄS MER

  4. 3. Laser Remote Sensing for Environmental Monitoring

    Författare :Zuguang Guan; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fiber-optic sensor; gas analysis; food-package monitoring; multiple scattering; zero-background measurement; diode laser spectroscopy; ecological study; aerosol; trace pollutant; LIDAR; laser-induced fluorescence; DIAL; methane monitoring;

    Sammanfattning : This thesis studies the techniques of laser remote sensing and their applications in environmental monitoring, as documented in several published papers. The environment where the human being live is degrading with an accelerating speed. LÄS MER

  5. 4. Vertical Nanowire High-Frequency Transistors

    Författare :Sofia Johansson; NanoLund: Centre for Nanoscience; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nanowires; III-V semiconductors; metal-oxide-semiconductor field-effect transistors; border traps; high-k;

    Sammanfattning : This thesis explores a novel transistor technology based on vertical InAs nanowires, which could be considered both for low-power high-frequency analog applications and for replacing Si CMOS in the continued scaling of digital electronics. The potential of this device - the vertical InAs nanowire MOSFET – lies in the combination of the outstanding transport properties of InAs and the improved electrostatic control of the gate-all-around geometry. LÄS MER

  7. 5. Gadodiamide injection for Enhancement of MRI in the CNS. Applications, dose, field and time dependence

    Författare :Per Åkeson; Malmö Diagnostisk radiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Clinical physics; Phantom study.; Comparative study; Human; Time dependence; Dosage; Enhancement; Gadolinium; MRI contrast media; Contrast media; Magnetic resonance imaging; Spine; Brain neoplasms; secondary; Brain; radiology; tomography; medical instrumentation; Klinisk fysiologi; radiologi; tomografi; medicinsk instrumentering;

    Sammanfattning : Aims of the study The aims of this study using Gadodiamide injection were to investigate: · Whether Gadodiamide injection was comparable to Gd-DTPA for the enhancement of CNS lesions. · The contrast effect at different field strengths. · The effective time-window for the enhancement of blood-brain barrier damage. LÄS MER