Sökning: "empirical modeling"

Visar resultat 1 - 5 av 260 avhandlingar innehållade orden empirical modeling.

  1. 1. Four Proposals for Enterprise Modeling

    Författare :Darek Eriksson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; change; development; enterprise; modeling process; enterprise modeling language; systems science; constructivist epistemology; organization; modeling; multi-modal modeling; model;

    Sammanfattning : Any enterprise whether a major corporation, a small family-owned business, a public school, a hospital, or a military unit needs to develop itself continuously in order to adapt to the challenges originating within itself and from its environment, in relation to its overall purpose or mission. Deliberate development and management of an enterprise manifest complexity that gives rise to a central challenge: how can we obtain a comprehensive intelligibility of an enterprise? One conceptual tool to overcome this challenge is enterprise modeling; it supports articulation of an enterprise and consequently intelligibility of its complexity. LÄS MER

  2. 2. Mechanistic-Empirical Modeling of Permanent Deformation in Asphalt Concrete Layers

    Författare :Erik Oscarsson; Trafik och väg; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; permanent deformation; modeling; Mechanistic-Empirical; rutting; asphalt concrete; full-scale pavements;

    Sammanfattning : Three mechanistic-empirical permanent deformation models were evaluated under Swedish conditions with respect to traffic, climate and materials using accelerated pavement testing and long-term pavement performance studies. The mechanistic-empirical pavement design guide (M E PDG), the incremental-recursive mechanistic-empirical CalME model (CalME), and the PErmanent Deformation of asphalt concrete layer for ROads (PEDRO) model generally showed both useful features and limitations. LÄS MER

  3. 3. Home, Job and Space : Mapping and Modeling the Labor Market

    Författare :John Östh; Bo Malmberg; Lena Magnusson; Stewart Fotheringham; Uppsala universitet; []
    Nyckelord :Social and economic geography; GIS; ELMO; Estimated Labor Market Outcome; Estimated Labour Market Outcome; Accessibility; Access; Job Accessibility; Place; Employment; Unemployment; Labour; Labor; Labor Market; Labour Market; Topology; Local Labour Market Area; Modelling; Modeling; Spatial Modelling; Spatial Modeling; Spatial Mismatch; SMH; Mismatch; Commuting; Regionalization; Geography; Population Geography; Economic Geography; Time-geography; Space; Kulturgeografi;

    Sammanfattning : How does space affect individuals’ outcome on the labor market? And how do we measure it? Beyond the notion of the labor market as a system of supply and demand, lays a society of individuals and workplaces, whose relationships are undeniably complex. This thesis aims to shed some new light on how to investigate and analyze the complex labor market relationships from a spatial perspective. LÄS MER

  4. 4. Empirical Studies on Economic and Financial Spillovers : Asymmetric Risk and Dependence Modeling

    Författare :Axel Hedström; Gazi Salah Uddin; Ali M. Ahmed; Ugur Soytas; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Spillovers; systemic risk; risk modeling; risk dependence; asymmetric risk; energy finance; Spillovers; systemisk risk; riskmodellering; risk påverkan; asymmetrisk risk; energifinans;

    Sammanfattning : Financial assets are volatile, and volatility becomes more intense in terms of size and rate of recurrence when markets are uncertain and growing rapidly. The fact that the recurrence rate increased during crisis periods, such as the IT bubble in the early 2000 and the global financial crisis that started in 2007, is a key finding in the literature. LÄS MER

  5. 5. Empirical combustion modeling in SI engines

    Författare :Fredrik Lindström; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spark ignited engines; combustion modeling; knock; 1D simulation; Wiebe; divided exhaust period; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : This licentiate thesis concerns the modeling of spark ignition engine combustion for use in one dimensional simulation tools. Modeling of knock is of particular interest when modeling turbocharged engines since knock usually limits the possible engine output at high load. LÄS MER