Sökning: "beräkna tid"

Visar resultat 1 - 5 av 79 avhandlingar innehållade orden beräkna tid.

1. 1. Long Term Outcome and Prediction Models of Cognition, Activities of Daily Living and Nursing Home Placement in Alzheimer’s Disease with Cholinesterase Inhibitor Treatment

   Författare :Carina Wattmo; Klinisk minnesforskning; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; longitudinal studies; nursing home placement; activities of daily living; cognition; Alzheimer s disease; cholinesterase inhibitors; disease progression; predictors; statistical models.;

   Sammanfattning : Background Prospective longitudinal studies in Alzheimer's disease (AD) that include cholinesterase inhibitor (ChEI) treatment in routine clinical settings are scarce. The patients vary in severity of the disease, clinical course, rate of progression and response to treatment. LÄS MER

3. 2. Experimental and Theoretical Study of Rack Storage Fires

   Författare :Haukur Ingason; Avdelningen för Brandteknik; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; response time; in-rack sprinkler; flame heat transfer; gas velocity; gas temperature; flame height; in-rack fire plume; Rack storage fire; fire growth rate; Technological sciences; Teknik;

   Sammanfattning : A theoretical and experimental study of rack storage fires and responsiveness of sprinklers is presented. Free-burn tests with non-combustible and combustible material were carried out in reduced scale with verification in large scale. LÄS MER

4. 3. Towards an All-Embracing Elliptic Solver in 2D

   Författare :Rikard Ojala; Matematik LTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : This thesis addresses solving elliptic partial differential equation using integral equation methods, with emphasis on accuracy, speed and stability. Of particular interest are such equations on non-smooth domains, and several different elliptic problems such as electrostatic and elastostatic ones are treated and solved in this setting... LÄS MER

5. 4. Methods of Measuring Radioactivity in the Environment

   Författare :Mats Isaksson; Kärnfysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; radioactivity; soil sampling; depth distribution; nuclear weapons fallout; Chernobyl; sewage sludge; deposition; Ekologi; Fysicumarkivet A:1997:Isaksson; Ecology; Kärnfysik; Nuclear physics; Cs-137;

   Sammanfattning : In this thesis a variety of sampling methods have been utilised to assess the amount of deposited activity, mainly of Cs-137, from the Chernobyl accident and from the nuclear weapons tests. Starting with the Chernobyl accident in 1986 sampling of air and rain was used to determine the composition and amount of radioactive debris from this accident, brought to southern Sweden by the weather systems. LÄS MER

7. 5. Development and evaluation of an independent system for absorbed dose calculations in radiotherapy

   Författare :Stefan Johnsson; Lund Medicinsk strålningsfysik; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; medicinsk instrumentering; tomografi; radiologi; Klinisk fysiologi; tomography; medical instrumentation; radiology; Clinical physics; cancer; Cytologi; onkologi; cancerology; oncology; Cytology; PDA; mini-phantom; in-air equivalence; primary kerma; transmission measurement; stopping power ratio; entrance dose; beam quality; quality control; error prevention; monitor unit calculation; radiation therapy; dose calculation;

   Sammanfattning : The aim of this work was to develop, implement and evaluate an independent system with which to calculate the absorbed dose, delivered by high-energy X-ray beams, to the prescription point and the depth of dose maximum. The introduction of such a system in the clinical routine may help ensure high-quality treatment and avoidance of errors which may jeopardise the clinical outcome of the treatment (i. LÄS MER