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Creator | Title | Description | Subject | Date |
176 |
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Tasdizen, Tolga; Whitaker, Ross T.; Marc, Robert E.; Jones, Bryan W. | Enhancement of cell boundaries in transmission electon microscopy images | Transmission electron microscopy (TEM) is an important modality for the analysis of cellular structures in neurobiology. The computational analysis of neurons entail their segmentation and reconstruction from TEM images. This problem is complicated by the heavily textured nature of cellular TEM ima... | | 2005 |
177 |
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Stringfellow, Gerald B.; Shurtleff, James Kevin | Adsorption and desorption of the surfactant Sb on GaInP grown by organometallic vapor phase epitaxy | It has been determined that ordering has a profound effect on the bandgap energy of many compound semiconductor alloys. Therefore, ordering must be controlled for devices such as solar cells, light emitting diodes and diode lasers. Since ordering depends on the surface properties during organomet... | Time dependent surface photoabsorption (SPA); Compound semiconductor alloys | 2000 |
178 |
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Myers, Chris J. | Interfacing synchronous and asynchronous modules within a high-speed pipeline* | This paper describes a new technique for integrating asynchronous modules within CI high-speed synchronous pipeline. Our design eliminates potential metastability problems by using Q clock generated by Q stoppable rang oscillator, which is capable of driving the large clock load found in present d... | | 1997 |
179 |
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Tasdizen, Tolga; Whitaker, Ross T. | Feature preserving variational smoothing of terrain data | In this paper, we present a novel two-step, variational and feature preserving smoothing method for terrain data. The first step computes the field of 3D normal vectors from the height map and smoothes them by minimizing a robust penalty function of curvature. This penalty function favors piecewise ... | | 2003 |
180 |
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Harrison, Reid R. | Analog VLSI model of the fly elementary motion detector | Flies are capable of rapidly detecting and integrating visual motion information in behaviorly-relevant ways. The first stage of visual motion processing in flies is a retinotopic array of functional units known as elementary motion detectors (EMDs). Several decades ago, Reichardt and colleagues de... | | 1998-01-01 |
181 |
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Harrison, Reid R. | Wireless neural recording with single low-power integrated circuit | We present benchtop and in vivo experimental results from an integrated circuit designed for wireless implantable neural recording applications. The chip, which was fabricated in a commercially available 0.6- m 2P3M BiCMOS process, contains 100 amplifiers, a 10-bit analog-to-digital converter (ADC... | | 2009-08 |
182 |
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Stevens, Kenneth | Timed logic conformance and its application | Timed Logic Conformance _x000B_TLC_x000C_ is a bisimulation-style partial order relationship defined over the statespace of Timed Safety Automata _x000B_TSA_x000C_ with real-valued clocks. In contrast to timed simulation. Calculus of Timed Refine- ment _x000B_CTR_x000C_, and Time-Abstracted bisim... | | 1999 |
183 |
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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 |
184 |
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Mathews, V. John | An optimal design procedure for intraband vector quantized subband coding | AbstTact- Subband coding with vector quantization is addressed in this paper. Forming the data vectors from both between and within the subbands is considered. The former of these two schemes is referred to as interband coding and the latter as intraband coding. Interband coder design is relatively ... | | 1995 |
185 |
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Mathews, V. John | Adaptive realization of a maximum likelihood time delay estimator | ABSTRACT This paper presents an adaptive maximum likelihood method for estimating the time difference of arrival of a source signal at two spatially separate sensors. It is well-known that the maximum likelihood technique achieves the Cramer-Rao lower bound for time delay estimation error for ce... | | 1996 |
186 |
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Harrison, Reid R. | Wireless integrated circuit for 100-channel charge-balanced neural stimulation | The authors present the design of an integrated circuit for wireless neural stimulation, along with benchtop and in-vivo experimental results. The chip has the ability to drive 100 individual stimulation electrodes with constant-current pulses of varying amplitude, duration, interphasic delay, and ... | Wireless integrated circuit; Low-power | 2009-12 |
187 |
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Stevens, Kenneth | Testing the consequences of specifications in modal µ | In a companion paper in these proceedings [6], we introduced the CCS notation and explained how to write specifications succinctly in CCS using the composition operator. In this paper we explain how one may associate a process logic with CCS and use it to resolve deadlock, safety, liveness, and fai... | | 1993 |
188 |
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Harrison, Reid R. | Wireless neural signal acquisition with single low-power integrated circuit | We present experimental results from an integrated circuit designed for wireless neural recording applications. The chip, which was fabricated in a 0.6-μm 2P3M BiCMOS process, contains 100 amplifiers and a 10-bit ADC and 902-928 MHz FSK transmitter. Neural signals from one amplifier are sampled by... | Low-power; Wireless; Neural recording; Integrated Neural Interface; INI3; Utah Electrode Array | 2008-05 |
189 |
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Stevens, Kenneth | The post office experience: designing a large asynchronous chip | The Post Office is an asynchronous, 300,000 transistor, full-custom CMOS chip designed as the communication component for the Mayfly scalable parallel processor. Performance requirements led to the development of a design style which permits the design of sequential circuits operating under a rest... | | 1993 |
190 |
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Stevens, Kenneth | Congruent weak conformance | Congruent weak conformance is a property between formal models capturing the desired relationship between a specification and its implementation by allowing unused and redundant circuitry and tolerating unspec4jied behavior in the unreachable state space. By providing greater flexibility in design t... | | 2001 |
191 |
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Furse, Cynthia M. | Novel inverse methods for wire fault detection and diagnosis | Abstract?In recent years, methods used to locate and diagnose wiring faults have increased in complexity and variety. However, there is much research yet to take place in order to develop high resolution models for accurately analysis of the effects of small faults, gradual impedance discontinuities... | | 2011 |
192 |
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Stringfellow, Gerald B. | Modulated contrast and associated diffracted intensity of GaPySb1-y layers grown using organometallic vapor phase epitaxy | We have investigated the modulated structures and its associated diffracted diff_x000B_use intensity, of organometallic vapor phase epitaxially grown GaPSb (001) layers by using transmission electron microscopy (TEM) and transmission electron diff_x000B_raction (TED). The TEM results reveal the co-e... | Organometallic vapor phase epitaxy; GaPySb1-y layers; Modulated contrast; Diffracted intensity | 2008 |
193 |
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Mathews, V. John | On using the short-time unbiased spectrum estimation algorithm for estimating time delays and magnitude squared coherence functions | This paper introduces novel applications of the short-time unbiased sprectral estimation (STUSE) algorithm, which adds biased estimates to yield unbiased spectral estimates. It is shown that STUSE algorithm is an effective tool for estimating time delays and magnitude-squared coherence (MSC) functio... | | 1983 |
194 |
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Mastrangelo, Carlos H. | Detection of biomolecular binding by fourier-transform SPR | Surface plasmon resonance (SPR) is a widely used label-free detection technique that has many applications in drug discovery, pharmacokinetics, systems biology and food science. The SPR technique measures the dynamics of a biomolecular interaction at a surface, yielding kinetic association and diss... | | 2010 |
195 |
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Furse, Cynthia M. | Improving communication skills through project-based learning | In 2006, a program geared towards integrating technical communication and teamwork within engineering at the University of Utah was initiated. The program's aim was to improve communication education using technical course assignments, thereby avoiding the addition of a technical elective to an alre... | | 2007-06 |
196 |
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Harrison, Reid R.; Myers, Chris J.; Schlegel, Christian | Cell library for automatic synthesis of analog error control decoders | This paper presents a cell library for automatic synthesis of analog error control decoders. By using some basic cells, analog ermr control decoders can be automatically synthesized. Also, using automatic synthesis based on this cell library, the circuit performance is not degraded and the circuit i... | | 2002 |
197 |
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Stringfellow, Gerald B. | Surface photoabsorption study of the effects of growth temperature and V/III ratio on ordering in GaInP | Surface photoabsorption (SPA) measurements were used to clarify the Cu-Pt ordering mechanism in Ga0.5In0.5P layers grown by organometallic vapor phase epitaxy. The Cu-Pt ordering is strongly affected by the growth temperature and the input partial pressure of the phosphorus precursor, i.e., the V/II... | P-dimer concentration; Oriented phosphorus dimers; Surface reconstruction | 1996-05-01 |
198 |
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Furse, Cynthia M.; Gandhi, Om P. | Currents induced in the human body for exposure to ultrawideband electromagnetic pulses | The frequency-dependent finite-difference time-domain [(FD)2TD] method is used to calculate internal electric fields and induced current densities in a 1.31-cm resolution anatomically-based model of the human body for exposure to ultrawideband vertically polarized electromagnetic pulses (EMP's). Fr... | FDTD; Finite-difference time-domain; Ultrawideband electromagnetic pulses; Induced currents | 1997-01-01 |
199 |
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Tasdizen, Tolga | Algebraic curves that work better | An algebraic curve is defined as the zero set of a polynomial in two variables. Algebraic curves are practical for modeling shapes much more complicated than conics or superquadrics. The main drawback in representing shapes by algebraic curves has been the lack of repeatability in fitting algebraic... | | 1999 |
200 |
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Mastrangelo, Carlos H.; Tabib-Azar, Massood | Microfabrication of plasma nanotorch tips for localized etching and deposition | Abstract-We present the microfabrication and initial testing of an AFM-tip like device, or nanotorch, that is capable of generating a very localized microplasma at its tip. The submicron region near its tip provides a unique manufacturing environment where new methods for controlled direct-write mic... | | 2010 |