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Creator | Title | Description | Subject | Date |
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Furse, Cynthia M. | 3D ray-tracing for intra-vehicle environments | In order to develop a wireless communication system that could be used for all types of aircraft sensor networks, the severe multipath channel found inside aircrafts must be well defined. This multipath channel is much more complex than usual outdoor/indoor channels and thus far, research has been l... | | 2009 |
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Tasdizen, Tolga | Automatic markup of neural cell membranes using boosted decision stumps | To better understand the central nervous system, neurobiologists need to reconstruct the underlying neural circuitry from electron microscopy images. One of the necessary tasks is to segment the individual neurons. For this purpose, we propose a supervised learning approach to detect the cell membra... | | 2009 |
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Stevens, Kenneth | Characterization of asynchronous templates for integration into clocked CAD flows | Asynchronous circuit design can result in substantial benefits of reduced power, improved performance, and high modularity. However, asynchronous design styles are largely incompatible with clocked CAD, which has prevented wide-scale adoption. The key incompatibility is timing. Thus most commercial... | | 2009 |
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Stevens, Kenneth | Clocked and asynchronous FIFO characterization and comparison | Heterogeneous blocks, IP reuse, network-on-chip interconnect, and multi-frequency design are becoming more prevalent in integrated circuit design. Communication amongst these blocks typically employs first-in-first-out (FIFO) buffering for flow control. This paper characterizes and evaluates severa... | | 2009 |
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Tasdizen, Tolga; Jones, Bryan W.; Whitaker, Ross T. | Computational framework for ultrastructural mapping of neural circuitry | Circuitry mapping of metazoan neural systems is difficult because canonical neural regions (regions containing one or more copies of all components) are large, regional borders are uncertain, neuronal diversity is high, and potential network topologies so numerous that only anatomical ground truth c... | | 2009 |
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Khan, Faisal Habib | Hybrid electric vehicle power management solutions based on isolated and nonisolated configurations of multilevel modular capacitor-clamped converter | Abstract-This paper presents the various configurations of a multilevel modular capacitor-clamped converter (MMCCC), and it reveals many useful and new formations of the original MMCCC for transferring power in either an isolated or nonisolated manner. The various features of the original MMCCC circ... | | 2009 |
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Myers, Chris J.; Jones, Kevin | New verification method for embedded systems | Abstract-Verification of embedded systems is complicated by the fact that they are composed of digital hardware, analog sensors and actuators, and low level software. In order to verify the interaction of these heterogeneous components, it would be beneficial to have a single modeling formalism that... | | 2009 |
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Stevens, Kenneth | Power reduction through physical placement of asynchronous routers | Our work reduces power consumption by minimizing wirelength and hop-count of an asynchronous NoC using simulated annealing and force-directed algorithms. Asynchronous NoCs (aNoCs) can provide important benefits over clocked NoCs. However, there is little published research on generating a custom, ... | | 2009 |
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Tasdizen, Tolga | Principal neighborhood dictionaries for nonlocal means image denoising | We present an in-depth analysis of a variation of the nonlocal means (NLM) image denoising algorithm that uses principal component analysis (PCA) to achieve a higher accuracy while reducing computational load. Image neighborhood vectors are first projected onto a lower dimensional subspace using PC... | | 2009 |
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Stevens, Kenneth | Radiation hardening by design of asynchronous logic for hostile environments | A wide range of emerging applications is driving the development of wireless sensor node technology towards a monolithic system-on-a-chip implementation. Of particular interest are hostile environment scenarios where radiation and thermal extremes exist. Radiation hardening by design has been recogn... | | 2009 |
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Harrison, Reid R. | Revolution will be prosthetized | It's October at Duke University, in Durham, N.C., and Jonathan Kuniholm is playing "air guitar hero," a variation on Guitar Hero, the Nintendo Wii game that lets you try to keep up with real musicians using a vaguely guitarlike controller. But the engineer is playing without a guitar. More to the p... | | 2009 |
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Tasdizen, Tolga; Jones, Bryan W.; Whitaker, Ross T.; Marc, Robert E. | Ultrastructural mapping of neural circuitry: a computational framework | Complete mapping of neuronal networks requires data acquisition at synaptic resolution with canonical coverage of tissues and robust neuronal classification. Transmission electron microscopy (TEM) remains the optimal tool for network mapping. However, capturing high resolution, large, serial sectio... | | 2009 |
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Tasdizen, Tolga; Terry, Christi M.; Cheung, Alfred K.; Kirby, Robert Michael II | Using the stochastic collocation method for the uncertainty quantification of drug concentration due to depot shape variability | Numerical simulations entail modeling assumptions that impact outcomes. Therefore, characterizing, in a probabilistic sense, the relationship between the variability of model selection and the variability of outcomes is important. Under certain assumptions, the stochastic collocation method offers ... | | 2009 |