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Full-Text Articles in Engineering
Measuring Atmospheric Scattering From Digital Images Of Urban Scenery Using Temporal Polarization-Based Vision, Tarek El-Gaaly
Measuring Atmospheric Scattering From Digital Images Of Urban Scenery Using Temporal Polarization-Based Vision, Tarek El-Gaaly
Archived Theses and Dissertations
Suspended atmospheric particles (particulate matter) are a form of air pollution that visually degrades urban scenery and is hazardous to human health and the environment. Current environmental monitoring devices are limited in their capability of measuring average particulate matter (PM) over large areas. Quantifying the visual effects of haze in digital images of urban scenery and correlating these effects to PM levels is a vital step in more practically monitoring our environment. Current image haze extraction algorithms remove all the haze from the scene and hence produce unnatural scenes for the sole purpose of enhancing vision. We present two algorithms …
An Extended Configurable Uml Activity Diagram And A Transformation Algorithm For Business Process Reference Modeling, Yosra Osama Badr
An Extended Configurable Uml Activity Diagram And A Transformation Algorithm For Business Process Reference Modeling, Yosra Osama Badr
Archived Theses and Dissertations
Enterprise Resource Planning (ERP) solutions provide generic off-the-shelf reference models usually known as "best practices". The configuration !individualization of the reference model to meet specific requirements of business end users however, is a difficult task. The available modeling languages do not provide a complete configurable language that could be used to model configurable reference models. More specifically, there is no algorithm that monitors the transformation of configurable UML Activity Diagram (AD) models while preserving the syntactic correctness of the model. To fill these gaps we propose an extended UML AD modeling language which we named Configurable UML Activity Diagram (C-UML …
Damage Detection Via Structural Model Updating Using Frequency Response Functions And Genetic Algorithms, Bassam Sabry Fawzy Elsaid
Damage Detection Via Structural Model Updating Using Frequency Response Functions And Genetic Algorithms, Bassam Sabry Fawzy Elsaid
Archived Theses and Dissertations
This thesis covers the development of a model updating technique which relies on the introduction of correction factors to the elemental stiffness matrix of a beam Finite Element Model (FEM). A Genetic Algorithm selects the values of correction factors by minimizing the difference between an experimentally measured Frequency Response Function (FRF) and the FRF calculated from the FEM being updated. The model updating technique was employed as a damage detection algorithm. The first phase of damage detection is to use model updating to eliminate experimental and modeling errors between the FRF of a beam measured experimentally and the FRF of …