Filters: Department: "Electrical & Computer Engineering" Collection: "ir_uspace" School Or College: "College of Engineering"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 76 |
 |
Blair, Steven | A methodology for physical design automation for integrated optics | Advancements in silicon photonics technology are enabling large scale integration of electro-optical circuits and systems. To fully exploit this potential, automated techniques for design space exploration and physical synthesis for integrated optics must be developed. This paper investigates how co... | 2012-01-01 | |
| 77 |
 |
Furse, Cynthia M. | Challenges with optically transparent patch antennas | In this paper, antennas made out of transparent conducting oxides (TCOs) are explored. The optical transparency of transparent conducting oxides is achieved through thin-film depositions on substrates. However, thin-film depositions create a new set of electrical challenges that require a full under... | 2012-01-01 | |
| 78 |
 |
Blair, Steven | Plasmonic coupling effect in Ag nanocap-nanohole pairs for surface-enhanced Raman scattering | A plasmonic coupling structure composed of Ag nanocap-nanohole pairs was fabricated through a novel and facile method. Both surface-enhanced Raman scattering (SERS) measurements and numerical simulations show that the cap-hole system produces much larger electric field enhancement and SERS signal th... | 2012-01-01 | |
| 79 |
 |
Rieth, Loren W | Plasma-assisted atomic layer deposition of Al2O3 and parylene C bi-layer encapsulation for chronic implantable electronics | Encapsulation of biomedical implants with complex three dimensional geometries is one of the greatest challenges achieving long-term functionality and stability. This report presents an encapsulation scheme that combines Al2O3 by atomic layer deposition with parylene C for implantable electronic sys... | 2012-01-01 | |
| 80 |
 |
Simpson, Jamesina J. | Three-dimensional FDTD modeling of impulsive ELF propagation about the earth-sphere | This paper reports the application of an efficient finite-difference time-domain (FDTD) algorithm to model impulsive extremely low frequency (ELF) propagation within the entire Earth-ionosphere cavity. Periodic boundary conditions are used in conjunction with a three-dimensional latitude-longitude F... | 2004-01-01 | |
| 81 |
 |
Simpson, Jamesina J. | Two-dimensional FDTD model of antipodal ELF propagation and schumann resonance of the earth | This letter reports the initial application of the finitedifference time-domain (FDTD) method to model extremely lowfrequency (ELF) propagation around the entire Earth. Periodic boundary conditions are used in conjunction with a variable-cell two-dimensional TM FDTD grid, which wraps around the comp... | 2002-01-01 | |
| 82 |
 |
Simpson, Jamesina J. | Efficient modeling of impulsive ELF antipodal propagation about the earth sphere using an optimized two-dimensional geodesic FDTD grid | This letter reports the initial application of a geodesic finite-difference time-domain (FDTD) grid to model impulsive extremely low frequency electromagnetic wave propagation about the Earth sphere. The two-dimensional transverse-magnetic grid is comprised entirely of hexagonal cells, except for a ... | 2004-01-01 | |
| 83 |
 |
Simpson, Jamesina J. | Electrokinetic effect of the loma prieta earthquake calculated by an entire-earth FDTD solution of Maxwell's equations | We report what we believe to be the first three-dimensional computational solution of the full-vector Maxwell's equations for hypothesized pre-seismic electromagnetic phenomena propagated within the entire Earth-ionosphere cavity. Periodic boundary conditions are used in conjunction with a variable-... | 2005-01-01 | |
| 84 |
 |
Simpson, Jamesina J. | Computational and experimental study of a microwave electromagnetic bandgap structure with waveguiding defect for potential use as a bandpass wireless interconnect | As clock rates continue to rise, problems with signal integrity, cross-coupling, and radiation may render impractical the baseband metallic interconnects presently used in computers. A potential means to address this problem is to use bandpass wireless interconnects operating at millimeter-wave cent... | 2004-01-01 | |
| 85 |
 |
Simpson, Jamesina J. | FDTD modeling of a novel ELF radar for major oil deposits using a three-dimensional geodesic grid of the earth-ionosphere waveguide | This paper reports the first application of an optimized geodesic, three-dimensional (3-D) finite-difference time-domain (FDTD) grid to model impulsive, extremely low-frequency (ELF) electromagnetic wave propagation within the entire Earth-ionosphere cavity. This new model, which complements our pre... | 2006-01-01 | |
| 86 |
 |
Simpson, Jamesina J. | FDTD calculations of the diffraction coefficient of vibrating wedges | The full-vector Maxwell's equations finite-difference time-domain (FDTD) method is employed to calculate diffraction coefficients of vibrating conducting and dielectric wedges. Two-dimensional FDTD models of right-angle wedges are constructed to include total-field scattered-field incident plane-wav... | 2011-01-01 | |
| 87 |
 |
Simpson, Jamesina J. | ELF radar system proposed for localized D-region ionospheric anomalies | This letter proposes a novel extremely low frequency (ELF) radar for localized D-region (altitude < 95 km) ionospheric anomalies that have been generated by natural geophysical processes. The proposed system would use the former U.S. Navy Wisconsin Transmitting Facility as a distant well-characteriz... | 2006-01-01 | |
| 88 |
 |
Simpson, Jamesina J. | Global FDTD maxwell's equations modeling of elctromagnetic propagation from currents in the lithosphere | Electromagnetic wave propagation from electric currents within the Earth's crust is investigated using a three-dimensional finite-difference time-domain (FDTD) full-vector Maxwell's equations model of the global Earth-ionosphere cavity. The FDTD model employed extends from -100 km below sea level to... | 2008-01-01 | |
| 89 |
 |
Simpson, Jamesina J. | A magnetic field-independent absorbing boundary condition for magnetized cold plasma | An effective absorbing boundary condition (ABC) based on the second-order approximations of Engquist and Majda's wave equations is presented for terminating three-dimensional finite-difference time-domain (FDTD) models employing the E-J collocated magnetized cold plasma algorithm. Numerical tests de... | 2011-01-01 | |
| 90 |
 |
Simpson, Jamesina J. | An E-J collocated 3-D FDTD model of electromagnetic wave propagation in magnetized cold plasma | A new three-dimensional finite-difference time-domain (FDTD) numerical model is proposed herein to simulate electromagnetic wave propagation in an anisotropic magnetized cold plasma medium. Plasma effects contributed by electrons, positive, and negative ions are considered in this model. The current... | 2010-01-01 | |
| 91 |
 |
Simpson, Jamesina J. | A novel ELF radar for major oil deposits | This letter proposes a novel extremely low frequency (ELF) radar for major oil deposits. Using our recently developed whole-Earth electromagnetic wave propagation model based upon the finite-difference time-domain method, we have determined that detection of the radial (vertical) component of the sc... | 2006-01-01 | |
| 92 |
 |
Simpson, Jamesina J. | ADE-FDTD scattered-field formulation for dispersive materials | This letter presents a scattered-field formulation for modeling dispersive media using the finite-difference time-domain (FDTD) method. Specifically, the auxiliary differential equation method is applied to Drude and Lorentz media for a scattered field FDTD model. The present technique can also be a... | 2008-01-01 | |
| 93 |
 |
Simpson, Jamesina J. | A review of progress in FDTD Maxwell's equations modeling of impulsive subionospheric propagation below 300 kHz | Wave propagation at the bottom of the electromagnetic spectrum (below300 kHz) in the Earth-ionosphere waveguide system has been an interesting and important area of investigation for the last four decades. Such wave propagation is characterized by complex phenomena involving nonhomogeneous and aniso... | 2007-01-01 | |
| 94 |
 |
Simpson, Jamesina J. | Detection of embedded ultra-subwavelength-thin dielectric features using elongated photonic nanojets | Photonic nanojets have been previously shown (both theoretically and experimentally) to be highly sensitive to the presence of an ultra-subwavelength nanoscale particle within the nanojet. In the present work, photonic nanojets elongated by almost an order of magnitude (relative to the latest previo... | 2011-01-01 | |
| 95 |
 |
Simpson, Jamesina J. | On the possibility of high-level transient coronal mass ejection-induced ionospheric current coupling to electric power grids | [1] Short-time (<10 s) ionospheric current fluctuations are hypothesized to occur due to a coronal mass ejection that can induce high‐level transient voltages on long overhead power transmission lines. This hypothesis is first supported by reviewing published literature and recent magnetometer mea... | 2011-01-01 | |
| 96 |
 |
Simpson, Jamesina J. | Substrate integrated waveguides optimized for ultrahigh-speed digital interconnects | This paper reports an experimental and computational study of substrate integrated waveguides (SIWs) optimized for use as ultrahigh-speed bandpass waveguiding digital interconnects. The novelty of this study resides in our successful design, fabrication, and testing of low-loss SIWs that achieve 100... | 2006-01-01 | |
| 97 |
 |
Simpson, Jamesina J. | Subdiffraction optical resolution of a gold nanosphere located within the nanojet of a Mie-resonant dielectric microsphere | We theoretically investigate light scattering from a bi-sphere system consisting of a gold nanosphere and a lossless dielectric microsphere illuminated at a resonant optical wavelength of the microsphere. Using generalized multisphere Mie theory, we find that a gold nanosphere 100 times smaller than... | 2007-01-01 | |
| 98 |
 |
Myers, Chris J. | Utilizing stochastic model checking to analyze genetic circuits | When designing and analyzing genetic circuits, researchers are often interested in the probability of the system reaching a given state within a certain amount of time. Usually, this involves simulating the system to produce some time series data and analyzing this data to discern the state probabil... | 2012-01-01 | |
| 99 |
 |
Tasdizen, Tolga | Segmentation of haematopoeitic cells in bone marrow using circle detection and splitting techniques | Bone marrow evaluation is indicated when peripheral blood abnormalities are not explained by clinical, physical, or laboratory findings. In this paper, we propose a novel method for segmentation of haematopoietic cells in the bone marrow from scanned slide images. Segmentation of clumped cells is a ... | 2012-01-01 | |
| 100 |
 |
Furse, Cynthia M. | Measurement and modeling of multiuser multiantenna system in aircraft in the presence of electromagnetic noise and interference | This paper evaluates the accuracy with which the performance of a multi-user multi-antenna system can be predicted with and without considering co-channel interference and noise (Gaussian, α- stable and Cauchy) using a site-specific 3D ray-tracing algorithm as well as with statistical models with G... | 2011-01-01 |