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 101 for “"Information engineering"”.
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Architecture and Applications of a Unifield-Type Computer
… 16 permutations, has been implemented in the Information Engineering Laboratory of the Department of Computer Science of the University of Illinois.
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A Framework for Information Architecture for Business Networks
The concept of Information Architecture (IA) has been independently explored by researchers and practitioners in Information Engineering, Information Systems (ISmanagement, information visualisation and Web site design. However, little has been achieved towards its standardisation within and across …
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Development of Deep Shear Wave Velocity Profiles and an Approach to Generate Site Signature Consistent Pseudo Shear Wave Velocity Profiles in the Mississippi Embayment
… reversals. Therefore, if available, a-priori information should be used to guide the parameterization process. In the absence of a-priori information, engineering judgement, experience of local geology and iterative parameterization should be used. </p> <p>Deep VS profiles are developed at 24 …
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Sum rules and constraints on passive systems - a general approach and applications to electromagnetic scattering
Physical processes are often modeled as input-output systems. Many such systems obey passivity, which means that power is dissipated in the process. This thesis deals with the inevitable constraints imposed on physical systems due to passivity. A general approach to derive sum rules and physical …
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Towards measuring attention allocation in model-based engineering teamwork
… at the level of teams and teams of teams within engineering organizations. Engineering teams are tasked with solving problems of multidisciplinary nature with multiple stakeholder constraints. For better performance, teams need to be aware of multiple constraints simultaneously. This thesis …
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Fault Tolerance for Real-Time Systems: Analysis and Optimization of Roll-back Recovery with Checkpointing
Increasing soft error rates in recent semiconductor technologies enforce the usage of fault tolerance. While fault tolerance enables correct operation in the presence of soft errors, it usually introduces a time overhead. The time overhead is particularly important for a group of computer systems …
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Microwave CMOS VCOs and Front-Ends - using integrated passives on-chip and on-carrier
The increasing demand for high data rates in wireless communication systems is increasing the requirements on the transceiver front-ends, as they are pushed to utilize more and wider bands at higher frequencies. The work in this thesis is focused on receiver front-ends composed of Low Noise …
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Off-line Foveated Compression and Scene Perception: An Eye-Tracking Approach
… offering storage and communication of pictorial information, the need to efficiently represent this information has become increasingly important, both from an information theoretic and a perceptual point of view. There has been a recent interest to design systems for efficient representation and …
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Hidden states, hidden structures: Bayesian learning in time series models
This thesis presents methods for the inference of system state and the learning of model structure for a number of hidden-state time series models, within a Bayesian probabilistic framework. Motivating examples are taken from application areas including finance, physical object tracking and audio …
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Ultra-Wideband Wireless Channels - Estimation, Modeling and Material Characterization
This licentiate thesis is focused on the characterization of ultra-wideband wireless channels. The thesis presents results on ultra-wideband communications as well as on the ultra-wideband characterization of materials. The communications related work consisted in the measurement and modeling of …
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Microwave CMOS Beamforming Transmitters
The increase of the consumer electronics market the last couple of decades has been one of the main drivers of IC process technology development. The majority of the ICs are used in digital applications, and for these CMOS is the choice of technology. The urge to squeeze more transistors on to a …
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Design of Multi-layer Telecommunication Networks: Fairness, Resilience, and Load Balancing
Migration to Next Generation Internet architectures poses new challenges for network operators in planning core networks and calls for efficient network planning and optimization tools. Optimization models underlying such tools are developed in this thesis. We study a number of single and two-layer …
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Retrieval of equivalent currents by the use of an integral representation and the extinction theorem --- radome applications
The aim of this thesis is to solve an inverse source problem. The approach is based on an integral representation together with the extinction theorem. Both a scalar and a full-wave integral representation are implemented and solved by a Method of Moment procedure. The body of revolution enables …
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Wireless Communication with Medical Implants: Antennas and Propagation
With the increased sophistication of medical implants, there is a growing need for flexible high-speed communication with the implant from outside the body. Today the communication is done by an inductive link between the implant and an external coil at a low carrier frequency. Extended range and …
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Radome Diagnostics: utilizing Source Reconstruction based on Surface Integral Representations
… surface of the radome, i.e., no a priori information of the material of the radome is requested. Moreover, both synthetic and measured data are used to verify the method. In Papers I-III, the measurement set-up is a reflector antenna covered by a monolithic radome, and the near field is …
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