Sökning: "Xenon"

Visar resultat 6 - 10 av 47 avhandlingar innehållade ordet Xenon.

  1. 6. Clinical Bedside Studies of Cerebral Blood Flow in Severe Subarachnoid Hemorrhage Using Xenon CT

    Författare :Henrik Engquist; Per Enblad; Elham Rostami; Anders Lewén; Marianne Juhler; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Subarachnoid hemorrhage; delayed cerebral ischemia; cerebral blood flow; HHH-therapy; triple-H; xenon CT; XeCT; cerebral microdialysis; Neurokirurgi; Neurosurgery;

    Sammanfattning : Aneurysmal subarachnoid hemorrhage (SAH) is frequently complicated by delayed cerebral ischemia (DCI), contributing to poor outcome. Particularly for patients in poor neurological state, prediction of the acute clinical course is difficult, as is the early detection of DCI. LÄS MER

  3. 7. Surface coatings as xenon diffusion barriers on plastic scintillators : Improving Nuclear-Test-Ban Treaty verification

    Författare :Lisa Bläckberg; Mattias Klintenberg; Henrik Sjöstrand; Anders Ringbom; Stephan Pomp; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plastic scintillator; Radioxenon; Diffusion barrier; Surface coating; Atomic Layer Deposition; Comprehensive Nuclear-Test-Ban Treaty; Fysik med inriktning mot tillämpad kärnfysik; Physics with specialization in Applied Nuclear Physics; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

    Sammanfattning : This thesis investigates the ability of transparent surface coatings to reduce xenon diffusion into plastic scintillators. The motivation for the work is improved radioxenon monitoring equipment, used with in the framework of the verification regime of the Comprehensive Nuclear-Test-Ban Treaty. LÄS MER

  4. 8. Improved PWR Core Characteristics with Thorium-containing Fuel

    Författare :Cheuk Wah Lau; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; load-following; PWR; Thorium; xenon poisoning; core calculations;

    Sammanfattning : Thorium is an element for possible use as nuclear fuel, because of the fertile property of Th-232, which could convert into U-233 after neutron capture and beta decays. However, thorium based fuels have not been successfully implemented, because of the high cost and the higher complexity compared with once-through uranium fuel. LÄS MER

  5. 9. Intraperitoneal 5-Fluorouracil treatment of cancer - clinical and experimental studies

    Författare :Mikael Öman; Peter Naredi; Larsolof Hafström; Johan Permert; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; intraperitoneal; 5-fluorouracil; pancreas cancer; vasopressin; Xenon-clearance; Kirurgi; Surgery; Kirurgi; Surgery; kirurgi;

    Sammanfattning : Background:Pancreas cancer is a most aggressive malignancy. More than 80% of patients diagnosed with pancreas cancer, exhibit such advanced disease, that curative surgery is impossible. Systemic chemotherapy prolongs survival to 5-9 months. LÄS MER

  7. 10. Beta-delayed proton emission from isotopes of mercury, cesium, xenon and krypton

    Författare :Björn Jonson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER