Página 19 dos resultados de 2566 itens digitais encontrados em 0.032 segundos

Directive antenna using metamaterial substrates

Wang, Weijen, 1980-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 86 p.; 3543689 bytes; 3553248 bytes; application/pdf; application/pdf
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Using a commercially available software(CST Microwave Studio®), two kinds of simulations have been carried out on different metamaterials in the microwave regime. One is transmission and reflection of a unit cell in a waveguide, and the other is parallel plate slab farfield radiation. The S-parameters are obtained from the wave-guide simulation and are used to retrieve the effective permittivity and permeability with which we can estimate the farfield radiation using analytic method. Thus, by comparing the farfield radiation from two different methods, analytic and slab simulation, we find that the analytic method is able to indicate many major features of the slab simulation's farfield results, implying that within a certain frequency range, we can treat the metamaterial as being homogeneous. After comparing the radiation performance of different metamaterial as antenna substrates, a structure is chosen to be optimized in such a way that it improves in radiation power, beamwidth, and bandwidth.; by Weijen Wang.; Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.; Includes bibliographical references (p. 83-86).

A mobile phone GuiDE : a GUI Decoder and Enricher; GUI Decoder and Enricher

Yan, Emily Z
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 54 p.
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Much information can be obtained from knowing what tasks the user does on his or her cell phone. This paper describes GuiDE, an automated user-activity recognition system on the mobile phone. GuiDE's unique approach to activity recognition exploits GUI screenshots taken as the individual interacts with their cell phone. These screenshots are aggregated into a graph to help probabilistically determine whether or not a set of screenshots can be considered a user-level activity. A frequency count of different sets of screenshots is also kept to act as a sanity check against the probabilistic result. GuiDE is just a partial step towards a much more powerful tool that can correlate GUI information with other services to provide a better understanding of user activity.; by Emily Z. Yan.; Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.; Includes bibliographical references (p. 53-54).

Improving the control strategy for a four-switch buck-boost converter

Whitaker, Michael Peter
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 126 p.
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The four-switch buck-boost converter, such as implemented with the Linear Technology LTC3440 integrated circuit, is useful in many applications. While this topology can be highly efficient, new strategies for controlling it could decrease power losses even more. The strategy proposed for this thesis involves the use of level shifted triangle waves and high speed comparators to achieve a narrower buck-boost region than achieved in previous control IC's such as the LTC3440. Reducing the amount of operation in this regime is desirable because it is the most inefficient mode of operation of the converter. This potentially simpler solution will allow for resources to be used to improve the performance of other elements of the circuit, allowing for potential increases in efficiency.; by Michael Peter Whitaker.; Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.; Includes bibliographical references (p. 125-126).

DomeView : community-based digital bulliten boards and mobile phone interaction; Community-based digital bulliten boards and mobile phone interaction

Williams, Harel M. (Harel Michael)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 61 leaves
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Our thesis is that a networked public display/kiosk system, that provides information for a local community, functions best when it is decentralized and interactive. We deployed such a system at MIT that has two aspects, DomeView for distributed decentralized display and content distribution, and PhoneView for enhanced user consumption of that content. PhoneView is an implementation that we propose to solve a number of issues with current interactive public kiosk deployments, as well as enables scenarios of enhanced interactions. By using the Hands-Free Bluetooth profile as the basis for the communication between a mobile phone and a kiosk, we provide an enhanced personalized interaction for all passersby with Bluetooth-enabled mobile phones, without requiring the installation of custom software. Some examples include the ability to remotely control a kiosk, exchange calendar and contact data with the kiosk, and play games on a kiosk with other users via one's mobile phone. By removing the software installation barrier and providing new mechanisms of public interaction, this implementation is ripe for wide-spread and immediate adoption across multiple public kiosk platforms.; by Harel M. Williams.; Thesis (M. Eng.)--Massachusetts Institute of Technology...

Clustered Naive Bayes

Roy, Daniel Murphy
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 73 leaves
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Humans effortlessly use experience from related tasks to improve their performance at novel tasks. In machine learning, we are often confronted with data from "related" tasks and asked to make predictions for a new task. How can we use the related data to make the best prediction possible? In this thesis, I present the Clustered Naive Bayes classifier, a hierarchical extension of the classic Naive Bayes classifier that ties several distinct Naive Bayes classifiers by placing a Dirichlet Process prior over their parameters. A priori, the model assumes that there exists a partitioning of the data sets such that, within each subset, the data sets are identically distributed. I evaluate the resulting model in a meeting domain, developing a system that automatically responds to meeting requests, partially taking on the responsibilities of a human office assistant. The system decides, based on a learned model of the user's behavior, whether to accept or reject the request on his or her behalf. The extended model outperforms the standard Naive Bayes model by using data from other users to influence its predictions.; by Daniel Murphy Roy.; Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science...

Improving end-to-end availability using overlay networks

Andersen, David G. (David Godbe), 1975-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 150 p.; 11785937 bytes; 11806069 bytes; application/pdf; application/pdf
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The end-to-end availability of Internet services is between two and three orders of magnitude worse than other important engineered systems, including the US airline system, the 911 emergency response system, and the US public telephone system. This dissertation explores three systems designed to mask Internet failures, and, through a study of three years of data collected on a 31-site testbed, why these failures happen and how effectively they can be masked. A core aspect of many of the failures that interrupt end-to-end communication is that they fall outside the expected domain of well-behaved network failures. Many traditional techniques cope with link and router failures; as a result, the remaining failures are those caused by software and hardware bugs, misconfiguration, malice, or the inability of current routing systems to cope with persistent congestion.The effects of these failures are exacerbated because Internet services depend upon the proper functioning of many components-wide-area routing, access links, the domain name system, and the servers themselves-and a failure in any of them can prove disastrous to the proper functioning of the service. This dissertation describes three complementary systems to increase Internet availability in the face of such failures. Each system builds upon the idea of an overlay network...

Efficient and robust routing of highly variable traffic

Sengupta, Sudipta, 1974-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 324 p.
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Many emerging applications for the Internet are characterized by highly variable traffic behavior over time that is difficult to predict. Classical approaches to network design rely on a model in which a single traffic matrix is estimated. When actual traffic does not conform to such assumptions, desired bandwidth guarantees cannot be provided to the carried traffic. Currently, Internet Service Providers (ISPs) use gross capacity over-provisioning and manual routing adaptation to avoid network congestion caused by unpredictable traffic. These lead to increased network equipment and operational costs. Development of routing infrastructures that optimize network resources while accommodating extreme traffic unpredictability in a robust and efficient manner will be one of the defining themes in the next phase of expansion of the Internet. This thesis proposes two-phase routing as a capacity efficient and robust strategy for handling highly variable traffic. The scheme allows preconfiguration of the network such that all traffic patterns permissible within the network's natural ingress-egress capacity constraints can be routed with bandwidth guarantees without requiring detection of traffic changes in real-time or reconfiguring the network in response to it.; (cont.) The scheme routes traffic in two phases -- traffic entering the network is sent from the source to a set of intermediate nodes in predetermined split ratios that depend on the intermediate nodes...

An earth image simulation and tracking system for the Mars Laser Communication Demonstration

Balster, Stephanie Karen
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 72 p.; 3321926 bytes; 3323328 bytes; application/pdf; application/pdf
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In this thesis I created an Earth-image simulation and investigated Earth-tracking algorithms for the Mars Laser Communication Demonstration (MLCD). The MLCD mission will demonstrate the feasibility of high-data-rate laser communications between a Mars orbiting satellite and an Earth ground station. One of the key challenges of the mission is the requirement to achieve 0.35-rad-accuracy pointing and tracking of the laser beam to maintain the 1-30 Mbps communication downlink from Mars to Earth. The sunlit Earth is a bright source and, for most of the mission, can be tracked to stabilize the telescope from disturbances between 0.02 to 2 Hz, while other stabilization systems will cover the rest of the frequency spectrum. Before testing candidate Earth-tracking algorithms, simulated Earth image sequences were created to provide test; data sets. While a plain centroiding algorithm, thresholded-centroiding algorithm, cross-spectrum phase correlation method, and optical flow algorithm were all tested under various Earth phase conditions and pixel resolutions to evaluate their performance on simulated test data, the thresholded-centroiding algorithm was eventually chosen for its accuracy and low computational cost. The effect of short-term albedo variations on the performance of the thresholded-centroiding algorithm was shown to be limited by the Earth's rotation and too slow to change the Earth's surface enough to affect the centroid calculation between time frames. Differences between the geometric centroid and optical centroid were measured to be up to 10% of the Earth's diameter...

Computational comparative genomics : genes, regulation, evolution

Kamvysselis, Manolis, 1977-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 100 p.; 9290582 bytes; 9290340 bytes; application/pdf; application/pdf
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Understanding the biological signals encoded in a genome is a key challenge of computational biology. These signals are encoded in the four-nucleotide alphabet of DNA and are responsible for all molecular processes in the cell. In particular, the genome contains the blueprint of all protein-coding genes and the regulatory motifs used to coordinate the expression of these genes. Comparative genome analysis of related species provides a general approach for identifying these functional elements, by virtue of their stronger conservation across evolutionary time. In this thesis we address key issues in the comparative analysis of multiple species. We present novel computational methods in four areas (1) the automatic comparative annotation of multiple species and the determination of orthologous genes and intergenic regions (2) the validation of computationally predicted protein-coding genes (3) the systematic de-novo identification of regulatory motifs (4) the determination of combinatorial interactions between regulatory motifs. We applied these methods to the comparative analysis of four yeast genomes, including the best-studied eukaryote, Saccharomyces cerevisiae or baker's yeast. Our results show that nearly a tenth of currently annotated yeast genes are not real...

Predicting problems caused by component upgrades

McCamant, Stephen
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 93 p.; 5211790 bytes; 5211593 bytes; application/pdf; application/pdf
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This thesis presents a new, automatic technique to assess whether replacing a component of a software system by a purportedly compatible component may change the behavior of the system. The technique operates before integrating the new component into the system or running system tests, permitting quicker and cheaper identification of problems. It takes into account the system's use of the component, because a particular component upgrade may be desirable in one context but undesirable in another. No formal specifications are required, permitting detection of problems due either to errors in the component or to errors in the system. Both external and internal behaviors can be compared, enabling detection of problems that are not immediately reflected in the output. The technique generates an operational abstraction for the old component in the context of the system, and one for the new component in the context of its test suite. An operational abstraction is a set of program properties that generalizes over observed run-time behavior. Modeling a system as divided into modules, and taking into account the control and data flow between the modules, we formulate a logical condition to guarantee that the system's behavior is preserved across a component replacement. If automated logical comparison indicates that the new component does not make all the guarantees that the old one did...

Automatic continuous testing to speed software development

Saff, David, 1976-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 152 p.; 7410262 bytes; 7410068 bytes; application/pdf; application/pdf
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Continuous testing is a new feature for software development environments that uses excess cycles on a developer's workstation to continuously run regression tests in the background, providing rapid feedback about test failures as source code is edited. It is intended to reduce the time and energy required to keep code well-tested, and to prevent regression errors from persisting uncaught for long periods of time. The longer that regression errors are allowed to linger during development, the more time is wasted debugging and fixing them once they are discovered. By monitoring and measuring software projects, we estimate that the wasted time, consisting of this preventable extra fixing cost added to the time spent running tests and waiting for them to complete, accounts for 10-15% of total development time. We present a model of developer behavior that uses data from past projects to infer developer beliefs and predict behavior in new environments -in particular, when changing testing methodologies or tools to reduce wasted time. This model predicts that continuous testing would reduce wasted time by 92-98%, a substantial improvement over other approaches we evaluated, such as automatic test prioritization and changing manual test frequencies. A controlled human experiment indicates that student developers using continuous testing were three times more likely to complete a task before the deadline than those without...

Nanometer-precision electron-beam lithography with applications in integrated optics

Hastings, Jeffrey Todd, 1975-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 185 p.; 13694367 bytes; 13694272 bytes; application/pdf; application/pdf
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Scanning electron-beam lithography (SEBL) provides sub-10-nm resolution and arbitrary-pattern generation; however, SEBL's pattern-placement accuracy remains inadequate for future integrated-circuits and integrated-optical devices. Environmental disturbances, system imperfections, charging, and a variety of other factors contribute to pattern-placement inaccuracy. To overcome these limitations, spatial-phase locked electron-beam lithography (SPLEBL) monitors the beam location with respect to a reference grid on the substrate. Phase detection of the periodic grid signal provides feedback control of the beam position to within a fraction of the period. Using this technique we exposed patterns globally locked to a fiducial grid and reduced local field-stitching errors to a < 1.3 nm. Spatial-phase locking is particularly important for integrated-optical devices that require pattern-placement accuracy within a fraction of the wavelength of light. As an example, Bragg-grating based optical filters were fabricated in silicon-on-insulator waveguides using SPLEBL. The filters were designed to reflect a narrow-range of wavelengths within the communications band near 1550-nm. We patterned the devices in a single lithography step by placing the gratings in the waveguide sidewalls. This design allows apodization of the filter response by lithographically varying the grating depth. Measured transmission spectra show greatly reduced sidelobe levels for apodized devices compared to devices with uniform gratings.; by Jeffrey Todd Hastings.; Thesis (Ph. D.)--Massachusetts Institute of Technology...

Imitation learning of whole-body grasps

Hsiao, Kaijen
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 154 p.; 6506574 bytes; 6537019 bytes; application/pdf; application/pdf
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Humans often learn to manipulate objects by observing other people. In much the same way, robots can use imitation learning to pick up useful skills. A system is demonstrated here for using imitation learning to teach a robot to grasp objects using both hand and whole-body grasps, which use the arms and torso as well as hands. Demonstration grasp trajectories are created by teleoperating a simulated robot to pick up simulated objects, and stored as sequences of keyframes in which contacts with the object are gained or lost. When presented with a new object, the system compares it against the objects in a stored database to pick a demonstrated grasp used on a similar object. Both objects are modeled as a combination of primitives-boxes, cylinders, and spheres-and the primitives for each object are grouped into 'functional groups' that geometrically match parts of the new object with similar parts of the demonstration object. These functional groups are then used to map contact points from the demonstration object to the new object, and the resulting adapted keyframes are adjusted and checked for feasibility. Finally, a trajectory is found that moves among the keyframes in the adapted grasp sequence, and the full trajectory is tested for feasibility by executing it in the simulation. The system successfully uses this method to pick up 92 out of 100 randomly generated test objects in simulation.; by Kaijen Hsiao.; Thesis (S.M.)--Massachusetts Institute of Technology...

On the Stochastic Travelling Salesman problem for the Dubin's vehicle; On the Stochastic Dubin's Travelling Salesperson problem

Itani, Sleiman M
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 56 p.
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In this thesis, I solve the following problem: Given a rectangular region R in which n (n is large) targets are distributed according to some continuous or piece-wise continuous distribution, find the length of the optimal Stochastic Travelling Salesperson tour of a Dubin vehicle over the n targets and design an algorithm that performs within a. constant factor of the optimal expected tour length. We first solve the problem for the case when the distribution of the targets in uniform in R, and then generalize the results to any distribution. To solve the problem, we use an already known lower bound on the expected length of the optimal tour, and we design an algorithm that performs within a. constant factor of that lower bound. To create the constant factor algorithm, we first study the dynamic constraints on the Dubin vehicle to create a building block. and then solve an important auxiliary problem in which targets are not allowed to be too close to each other. After creating the algorithm for the uniform distribution scenario, we establish a lower bound for the scenario where the targets are sampled in R according to a continuous or a piece-wise continuous distribution. We finally generalize our algorithm to the non-uniform scenario and prove that it still performs within a constant factor of the lower bound we proved.; by Sleiman M. Itani.; Thesis (S.M.)--Massachusetts Institute of Technology...

Teaching and old robot new tricks : learning novel tasks via interaction with people and things

Marjanović, Matthew J. (Matthew Josef)
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 173 p.; 11201629 bytes; 11201436 bytes; application/pdf; application/pdf
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As AI has begun to reach out beyond its symbolic, objectivist roots into the embodied, experientialist realm, many projects are exploring different aspects of creating machines which interact with and respond to the world as humans do. Techniques for visual processing, object recognition, emotional response, gesture production and recognition, etc., are necessary components of a complete humanoid robot. However, most projects invariably concentrate on developing a few of these individual components, neglecting the issue of how all of these pieces would eventually fit together. The focus of the work in this dissertation is on creating a framework into which such specific competencies can be embedded, in a way that they can interact with each other and build layers of new functionality. To be of any practical value, such a framework must satisfy the real-world constraints of functioning in real-time with noisy sensors and actuators. The humanoid robot Cog provides an unapologetically adequate platform from which to take on such a challenge. This work makes three contributions to embodied AI. First, it offers a general-purpose architecture for developing behavior-based systems distributed over networks of PC's. Second, it provides a motor-control system that simulates several biological features which impact the development of motor behavior. Third...

Macromodeling and demonstration of the LT6600 amplifier and lowpass filter

Pei, Cheng-Wei, 1981-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 101 leaves; 2464121 bytes; 2687954 bytes; application/pdf; application/pdf
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The goal of this thesis is to demonstrate the abilities of the Sevastopoulos-LaPorte active low-pass filter topology in Linear Technology Corporation's LT6600 integrated circuit (IC). The thesis is split into two parts, representing two facets of how engineers will evaluate the LT6600: by simulation and in the laboratory. The LT6600-10 macromodel and its design methodology is presented, as well as comparisons of macromodel characteristics with measured characteristics of the LT6600-10 IC. For the lab demonstration portion, the LT6600-2.5 was integrated into a digital code-division multiple access (CDMA) communications system, complete with transmit and receive sections. The performance of the LT6600 in this system was shown to be as good as or better than most conventional filtering approaches. When implemented in a communications system., the LT6600-10 required up to 13 less components than other reasonable filtering options and provided 4th-order signal attenuation with only 14 nV/[square root]Hz of voltage noise spectral density.; by Cheng-Wei Pei.; Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2004.; Includes bibliographical references (leaves 100-101).; This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.

Computational prediction of RNA-based gene regulatory mechanisms in human and Tetrahymena; Computational prediction of ribonucleic acid-based gene regulatory mechanisms in human and Tetrahymena

Kitzman, Jacob O
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 122 p.
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The diversity and profound impact of gene regulation mediated by small RNAs (sRNAs) is just beginning to come into focus. RNA interference (RNAi) pathways have been shown to mediate processes such as genomic rearrangement in ciliates and developmental timing and tissue differentiation in plants and animals. Here we present a computational study into the function of two distinct classes of sRNAs. In the first section, we examine an uncharacterized class of sRNAs isolated from the ciliate Tetrahymena thermophila, present functional comparison to known classes of sRNAs in other organisms, and note a strong and specific relationship to a novel sequence motif. In the second section, we examine the evolutionary impact of microRNAs (miRNAs), which mediate potent post-transcriptional repression on their targets. We observe that miRNAs with tissue-specific expression exert remarkable evolutionary pressure, compelling many preferentially coexpressed genes to avoid accumulating target sites. We present tissue-specific patterns of such target depletion and note strong agreement with experimentally obtained miRNA expression patterns. Conversely, we report enrichment for targeting among genes with expression patterns spatially or temporally complementary to the miRNAs'...

Substrate resistance extraction using a multi-domain surface integral formulation

Vithayathil, Anne M. (Anne Marie), 1978-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 66 p.; 2538710 bytes; 2545057 bytes; application/pdf; application/pdf
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In recent years, mixed-signal designs have become more pervasive, due to their efficient use of area and power. Unfortunately, with sensitive analog and fast digital circuits sharing a common, non-ideal substrate, such designs carry the additional design burden of electromagnetic coupling between contacts. This thesis presents a method that quickly extracts the electroquasistatic coupling resistances between contacts on a planar, rectangular, two-layer lossy substrate, using an FFT-accelerated multi-domain surface integral formulation. The multi-domain surface integral formulation allows for multi-layered substrates, without meshing the volume. This method has the advantages of easy meshing, simple implementation, and FFT-accelerated iterative methods. Also, a three-dimensional variant of this method allows for more complex substrate geometries than some other surface integral techniques, such as multilayered Green's functions; this three-dimensional problem and its solution are presented in parallel with the planar substrate problem and solution. Results from a C++ implementation are presented for the planar problem.; by Anne M. Vithayathil.; Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science...

Coding techniques for multicasting; Coding techniques for multicasting in wireless networks

Khisti, Ashish, 1979-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 77 leaves; 3918895 bytes; 3926917 bytes; application/pdf; application/pdf
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We study some fundamental limits of multicasting in wireless systems and propose practical architectures that perform close to these limits. In Chapter 2, we study the scenario in which one transmitter with multiple antennas distributes a common message to a large number of users. For a system with a fixed number (L) of transmit antennas, we show that, as the number of users (K) becomes large, the rate of the worst user decreases as O(K-(1/L)). Thus having multiple antennas provides significant gains in the performance of multicasting system with slow fading. We propose a robust architecture for multicasting over block fading channels, using rateless erasure codes at the application layer. This architecture provides new insights into the cross layer interaction between the physical layer and the application layer. For systems with rich time diversity, we observe that it is better to exploit the time diversity using erasure codes at the application layer rather than be conservative and aim for high reliability at the physical layer. It is known that the spatial diversity gains are not significantly high in systems with rich time diversity. We take a step further and show that to realize these marginal gains one has to operate very close to the optimal operating point. Next...

A reverse engineering process for mechanical engineering systems

Tamarez-Gomez, Frank
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
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This thesis presents a literature review of current reverse engineering technologies and processes, with an emphasis on tools commonly used in Software Reverse Engineering (SRE). Using the foundation of the literature review, the thesis will then propose a standard process, referred to as "A Reverse Engineering Process for Mechanical Engineering Systems (REPMES)." The REPMES tool is intended to enable engineers to understand how current products work. Additionally, REPMES may allow engineering design teams to more effectively revise their product designs through competitive benchmarking. The REPMES is illustrated through application to case studies of a consumer flashlight and an automotive torque converter. Unlike the field of Software Reverse Engineering (SRE), there is not currently a published standardized procedure to successfully implement reverse engineering of mechanical engineering systems. The REPMES process introduced here differs from SRE in that the target for SRE is to understand the inner workings of a computer program or system. However, REPMES has to account for the materials used, the limitations of the same materials, the physical conditions under which the system must operate, the mean time between failure, manufacturing processes and tolerances...