Sökning: "edgar"

Visar resultat 11 - 15 av 33 avhandlingar innehållade ordet edgar.

  1. 11. On the Simulation of Financial Transactions for Fraud Detection Research

    Författare :Edgar Alonso Lopez-Rojas; Blekinge Tekniska Högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis introduces a financial simulation model covering two related financial domains: Mobile Payments and Retail Stores systems. The problem we address in these domains is different types of fraud. We limit ourselves to isolated cases of relatively straightforward fraud. LÄS MER

  3. 12. Dynamic and quasi-stationary electrochromic response of amorphous tungsten oxide thin films : In situ combined electrochemical and optical measurements during lithium intercalation

    Författare :Edgar Alonso Rojas González; Gunnar Niklasson; Aline Rougier; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electrochromism; Optical absorption; Amorphous materials; Tungsten oxide; Electrochemical impedance spectroscopy; Color impedance spectroscopy; Intercalation; Engineering Science with specialization in Solid State Physics; Teknisk fysik med inriktning mot fasta tillståndets fysik;

    Sammanfattning : Electrochromic (EC) materials can adjust their optical properties, reversibly, by means of an external electrical stimulus. They have relevant technological applications; for example, energy-efficient smart windows, which can adapt dynamically—according to the given environmental conditions—to control the heat and visible light fluxes between the interior and exterior of a building. LÄS MER

  4. 13. Applying Simulation to the Problem of Detecting Financial Fraud

    Författare :Edgar Alonso Lopez-Rojas; Stefan Axelsson; Thomas Walmann; Blekinge Tekniska Högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; security; privacy; anonymisation; multi-agent-based simulation; MABS; ABS; retail store; fraud detection; synthetic data; mobile money;

    Sammanfattning : This thesis introduces a financial simulation model covering two related financial domains: Mobile Payments and Retail Stores systems. The problem we address in these domains is different types of fraud. We limit ourselves to isolated cases of relatively straightforward fraud. LÄS MER

  5. 14. Vulnerability and Risk Analysis Methods and Application in Large Scale Development of Secure Systems

    Författare :Shanai Ardi; Kristian Sandahl; Nahid Shahmehri; Edgar Weippl; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Since software products are heavily used in today’s connected society, design and implementation of such software products to make them resilient to security threats become crucial.This thesis addresses some of the challenges faced by software vendors when developing secure software. LÄS MER

  7. 15. Conformal Einstein spaces and Bach tensor generalization in n dimensions

    Författare :Jonas Bergman Ärlebäck; Brian Edgar; Magnus Herberthson; Mattias Marklund; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

    Sammanfattning : In this thesis we investigate necessary and su±cient conditions for an n-dimensional space, n ≥ 4, to be locally conformal to an Einstein space. After reviewing the classical results derived in tensors we consider the four-dimensional spinor result of Kozameh, Newman and Tod. LÄS MER