Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 872 for “"updating"”.
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Model Updating Using Neural Networks
… iterative methods developed to solve the model updating problem rely on minimization techniques to find the set of model parameters that yield the best match between experimental and analytical responses. Since the minimization procedure requires a fair amount of computation time, it makes the …
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Automatic Updating of Cartographic Databases
To update a portion of an existing cartographic database, the common practice is to relate a new data file to an existing file by means of survey control points that are included in both files. The two digital maps may have different scales, different coordinate systems, and no identifying …
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Updating of representations in working memory
… its contents continuously. Two aspects of the updating process were investigated in the present experimental series. The first series concerned the question if it is possible to update several representations in parallel. Similar results were obtained for the updating of object features as well …
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Updating the outdated Boston zoning code
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1987.
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Updating the "Decision Aids for Tunneling"
… planning and so on. This work presents an updating procedure and associated code which allows one to refine predictions during construction. Updating not only involves replacing the original prediction by actual data from the excavation but also includes a learning effect. This uses …
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Model Updating Using a Quadratic Form
… in this thesis addresses the problem of updating an analytical model using a parametric Reference Basis approach. In this method, some parameters are assumed to be accurate (e.g. natural frequencies, mode shapes and mass matrix), while others are adjusted so that the eigenvalue equation …
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The need for updating commercial art curriculums
Call number: LD2668 .T4 1968 Y348
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The need for updating commercial art curriculums
Call number: LD2668 .T4 1968 Y348
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Essays On Dynamic Updating Of Consumer Preferences
Consumers dynamically update their preferences over time based on information learned through product search and consumption experiences, particularly in online media. Using three unique datasets from different domains, we address specific ways in which firms can use rich information about their …
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Finite Element Model Updating for Rotary Machinery
<p>The main approach of this thesis was to develop a mathematical model that represents a rotary machine. Experimental data was used to define a finite element model (FEM). In order to obtain the experimental data, the rotary machine had to be balanced. An impact hammer test made it possible to …
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Updating MIT's cost estimation model for shipbuilding
This thesis project will update the MIT ship cost estimation model by combining the two existing models (the Basic Military Training School (BMTS) Cost Model and the MIT Math Model) in order to develop a program that can accurately determine both a ship's acquisition cost as well as its life cycle …
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FEM updating applications using Computational Intelligence Techniques [Applicazioni di updating di FEM utilizzando tecniche di Tecniche di intelligenza computazionale]
Questo lavoro di tesi è nato con l'obiettivo di analizzare e studiare i processi di ottimizzazione per l'aggiornamento dei modelli agli elementi finiti (FEM) che vengono utilizzati per modellare strutture complesse, anche nel campo dell'ingegneria strutturale e in particolare per la modellazione …
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Updating of cartographic road databases by image analysis
ISSN:0252-9335
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Information selection and belief updating in hypothesis evaluation
This thesis is concerned with the factors underlying both selection and use of evidence in the testing of hypotheses. The work it describes examines the role played in hypothesis evaluation by background knowledge about the probability of events in the environment as well as the influence of more …
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Setting priorities for conducting and updating systematic reviews
Abstract Systematic reviews - appraisal and synthesis of all primary research - are increasingly being used to inform policy and practice in health care. Therefore, it is important to understand how the key questions in systematic reviews are identified and prioritised and whether they are relevant …
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Updating the Embedded System of an Autonomous Sailboat
The robotic and bio-mechanics lab proposed a sailboat design in which the rudder control surface operated in the air, rather than in the water, resulting in a dynamically stable sailboat with respect to the relative wind. The boat design has taken shape. In terms of hardware, some components have …
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On-line model updating in earthquake hybrid simulation
… loading and non-linear problems. For model updating purposes, the source codes and the communication protocols between UI-SIMCOR and ZeusNL are modified to be able to exchange the stress-strain information during the hybrid simulation test. Several steel and concrete constitutive models …
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A geological prediction and updating model in tunneling
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1981.
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Methodology for updating numerical predictions of excavation performance
… This thesis proposes a rational framework for updating constitutive model input parameters in finite element predictions of soil-structure interaction based on the monitoring data. The goal of this methodology is to provide an objective procedure that can be used during construction to update …
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Reusing and Updating Preconditioners for Sequences of Matrices
For sequences of related linear systems, the computation of a preconditioner for every system can be expensive. Often a fixed preconditioner is used, but this may not be effective as the matrix changes. This research examines the benefits of both reusing and recycling preconditioners, with special …
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