Search for dissertations about: "Coefficient of variation"

Showing result 1 - 5 of 120 swedish dissertations containing the words Coefficient of variation.

  1. 1. On the Application of the Bootstrap Coefficient of Variation, Contingency Table, Information Theory and Ranked Set Sampling

    University dissertation from Uppsala : Department of Mathematics

    Author : Saeid Amiri; Uppsala universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bootstrap method; Categorical data; Coefficient of variation; Entropy; Exponential family; Monte Carlo investigation; Informational energy; Ranked set sampling; Variance-stabilization transformation; Statistics; Statistik;

    Abstract : This thesis deals with the bootstrap method. Three decades after the seminal paper by Bradly Efron, still the horizons of this method need more exploration. The research presented herein has stepped into different fields of statistics where the bootstrap method can be utilized as a fundamental statistical tool in almost any application. READ MORE

  2. 2. Crystallization of Parabens Thermodynamics, Nucleation and Processing

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Yang Huaiyu; KTH.; [2013]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Nucleation; Induction time; Interfacial energy; Ethyl paraben; Propyl paraben; Butyl paraben; Methanol; Ethanol; Propanol; Acetone; Ethyl acetate; Solubility; Thermodynamics; Activity; Activity coefficient; Liquid-liquid phase separation; Ternary phase diagram; Melting point; Boiling point; Polarity; Cooling crystallization; Sandwich crystal; Porous; Particle Vision and Measurement; Focused Beam Reflectance Method; Infrared Spectroscopy; Confocal Raman Microscopy; X-Ray Diffraction; Differential Scanning Calorimetry; SRA - E-vetenskap SeRC ; SRA - E-Science SeRC ;

    Abstract : In this work, the solubility of butyl paraben in 7 pure solvents and in 5 different ethanol-water mixtures has been determined from 1 ˚C to 50 ˚C. The solubility of ethyl paraben and propyl paraben in various solvents has been determined at 10 ˚C. READ MORE

  3. 3. Prostaglandins and Isoprostanes in Relation to Risk Factors for Atherosclerosis Role of Inflammation and Oxidative Stress

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Johanna Helmersson; Uppsala universitet.; [2005]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Public health; prostaglandin F2α; F2-isoprostane; interleukin-6; C-reactive protein; serum amyloid A; tocopherols; cardiovascular risk factors; variation; inflammation; oxidative stress; human; Folkhälsomedicin; MEDICINE Social medicine Public health medicine research areas; MEDICIN Socialmedicin Folkhälsomedicinska forskningsområden;

    Abstract : Inflammation and oxidative stress may be involved in atherogenesis. This thesis describes clinical studies of prostaglandin F2α (PGF2α), an inflammatory mediator, and the isoprostane 8-iso-PGF2α, a reliable indicator of oxidative stress, and cytokine-related inflammatory mediators and indicators in healthy subjects and in a population-based cohort of Swedish men. READ MORE

  4. 4. Quantification of pulmonary scintigraphy

    University dissertation from Göteborg : Göteborgs Universitet

    Author : Jiahua Xu; Göteborgs universitet.; Gothenburg University.; [2002]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Emphysema; Inhomogeneity; Perfusion; scintigraphy; SPECT; 99mTc-Technegas; Ventilation; V Q;

    Abstract : Modern nuclear medicine techniques, such as SPECT (single photon emission computed tomography), enable quantification and localisation of lung function in small lung elements, but appropriate methods are not yet available. The aim of the present project was therefore to develop and evaluate methods for mapping lung function in planar scintigrams and in SPECT. READ MORE

  5. 5. Effect of Uncertainty of Rock Properties on Radionuclide Transport by Groundwater Implications for Performance Assessments of the Repository of Spent Nuclear Fuel in Heterogeneous Bedrock

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Shulan Xu; Uppsala universitet.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Radionuclide migration; heterogeneous rock property; stochastic process spectral analysis; temporal moments; auto-covariance functions; sorption kinetics; performance assessment; Geovetenskap; NATURAL SCIENCES Earth sciences; NATURVETENSKAP Geovetenskap; Sedimentology; sedimentologi;

    Abstract : The overall objective of the current study is to develop a quantitative understanding of the effects of spatial variability in physical and geochemical properties of crystalline rock on the migration of radionuclides along a single fracture in bedrock. A stochastic model was developed to describe the transport of solutes in fractured rock. READ MORE