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- BRC (5)
- Materials Science (3)
- Analog-digital (A/D) conversion (2)
- Continuous-time (CT) (2)
- Delta-sigma modulation (2)
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- Feedforward (2)
- Microstructure (2)
- Movement patterns (2)
- Air sparging (1)
- Algorith (1)
- Algorithm (1)
- Algorithmic self-assembly (1)
- Analog to digital converter (ADC) (1)
- Analog-to-digital converter (ADC) (1)
- Biomechanics (1)
- Biomedical (1)
- CUDA (1)
- CWR (1)
- Calera aquifer (1)
- Civil Engineering (1)
- Climate change (1)
- Continuous-time delta-sigma (1)
- DNA nanotechnology (1)
- Data converter (1)
- Degraded document images (1)
- Delta-sigma (ΔΣ) (1)
- Design (1)
- Developing Countries (1)
- Dielectric properties (1)
- Diffusion (1)
- Publication
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- Electrical and Computer Engineering Faculty Publications and Presentations (12)
- Civil Engineering Faculty Publications and Presentations (6)
- College of Engineering Poster Presentations (6)
- Mechanical and Biomedical Engineering Faculty Publications and Presentations (4)
- Materials Science and Engineering Faculty Publications and Presentations (2)
Articles 1 - 30 of 32
Full-Text Articles in Engineering
Electron Self-Trapping In Ge2 Se3 And Its Role In Ag And Sn Incorporation, Arthur H. Edwards, Kristy A. Campbell, Andrew C. Pineda
Electron Self-Trapping In Ge2 Se3 And Its Role In Ag And Sn Incorporation, Arthur H. Edwards, Kristy A. Campbell, Andrew C. Pineda
Electrical and Computer Engineering Faculty Publications and Presentations
We present a set of density functional theory (DFT) calculations on the electronic structure of Ag and Sn in Ge2 Se3 in a periodic model. We show that electron self-trapping is a persistent feature in the presence of many defects. Ag and Sn autoionize upon entering Ge2 Se3 becoming Ag+ and Sn2+ , respectively, and the freed electrons self trap at the lowest energy site. Both Ag and Sn can substitute for Ge, and we present formation energies as a function of Fermi level that show that Sn can substantially alter the incorporation of …
Experimental Validation Of A Numerical Forward Model For Tunnel Detection Using Cross-Borehole Radar, Arvin Farid, Jose A. Martinez-Lorenzo, Akram N. Alshawabkeh, Carey M. Rappaport
Experimental Validation Of A Numerical Forward Model For Tunnel Detection Using Cross-Borehole Radar, Arvin Farid, Jose A. Martinez-Lorenzo, Akram N. Alshawabkeh, Carey M. Rappaport
Civil Engineering Faculty Publications and Presentations
The goal of this research is to develop an experimentally validated twodimensional (2D) finite difference frequency domain (FDFD) numerical forward model to study the potential of radar-based tunnel detection. Tunnel detection has become a subject of interest to the nation due to the use of tunnels by illegal immigrants, smugglers, prisoners, assailants, and terrorists. These concerns call for research to nondestructively detect, localize, and monitor tunnels. Nondestructive detection requires robust image reconstruction and inverse models, which in turn need robust forward models. Cross-Well Radar (CWR) modality is used for experimentation to avoid soil-air interface roughness. CWR is not a versatile …
Design Of Wideband Continuous-Time Δς Adcs Using Two-Step Quantizers, Sakkarapani Balagopal, Vishal Saxena
Design Of Wideband Continuous-Time Δς Adcs Using Two-Step Quantizers, Sakkarapani Balagopal, Vishal Saxena
Electrical and Computer Engineering Faculty Publications and Presentations
Continuous-time delta sigma (CT-ΔΣ) ADCs are established as the data conversion architecture of choice for the next-generation wireless applications. Several efforts have been made to simultaneously improve the bandwidth and dynamic range of ΔΣ ADCs. We proposed using two-step quantizer in a single-loop CT-ΔΣ modulator to achieve higher conversion bandwidth. This paper presents a tutorial for employing the design technique through a 130n CMOS implementation. The proposed 640 MS/s, 4th order continuous-time delta sigma modulator (CT-ΔΣM) incorporates a two-step 5-bit quantizer, consisting of only 13 comparators. The CT-ΔΣM achieves a dynamic range of 70 dB, peak SNDR of 65.3 …
A 1 Gs/S, 31 Mhz Bw, 76.3 Db Dynamic Range, 34 Mw Ct-Δς Adc With 1.5 Cycle Quantizer Delay And Improved Stf, Sakkarapani Balagopal, Vishal Saxena
A 1 Gs/S, 31 Mhz Bw, 76.3 Db Dynamic Range, 34 Mw Ct-Δς Adc With 1.5 Cycle Quantizer Delay And Improved Stf, Sakkarapani Balagopal, Vishal Saxena
Electrical and Computer Engineering Faculty Publications and Presentations
A 1 GS/s Continuous-time Delta-Sigma modulator (CT-ΔΣM) with 31 MHz bandwidth, 76.3 dB dynamic range and 72.5 dB signal-to-noise is reported in a 0.13μm CMOS technology. The design employs an excess loop delay (ELD) of more than one clock cycle for achieving higher sampling rate. The ELD is compensated using a fast-loop formed around the last integrator by using a sample-and-hold. Further, the effect of this ELD compensation scheme on the signal transfer function (STF) of a feedforward CT-ΔΣ architecture has been analyzed and reported. In this work, an improved STF is achieved by using a combination of feed-forward, feed-back …
A Low-Power Single-Bit Continuous-Time Δς Converter With 92.5 Db Dynamic Range For Biomedical Applications, Sakkarapani Balagopal, Vishal Saxena
A Low-Power Single-Bit Continuous-Time Δς Converter With 92.5 Db Dynamic Range For Biomedical Applications, Sakkarapani Balagopal, Vishal Saxena
Electrical and Computer Engineering Faculty Publications and Presentations
A third-order single-bit CT-ΔΣ modulator for generic biomedical applications is implemented in a 0.15 µm FDSOI CMOS process. The overall power efficiency is attained by employing a single-bit ΔΣ and a subthreshold FDSOI process. The loop-filter coefficients are determined using a systematic design centering approach by accounting for the integrator non-idealities. The single-bit CT-ΔΣ modulator consumes 110 µW power from a 1.5 V power supply when clocked at 6.144 MHz. The simulation results for the modulator exhibit a dynamic range of 94.4 dB and peak SNDR of 92.4 dB for 6 kHz signal bandwidth. The figure of merit (FoM) for …
Monitoring Of The Aircraft Cabin Environment Via A Wireless Sensor Network, Michael Pook, Sin Ming Loo, Joshua Kiepert
Monitoring Of The Aircraft Cabin Environment Via A Wireless Sensor Network, Michael Pook, Sin Ming Loo, Joshua Kiepert
Electrical and Computer Engineering Faculty Publications and Presentations
Wireless sensor networks consist of physically distributed autonomous sensor nodes that cooperatively monitor physical or environmental conditions. The key benefit of wireless sensor networks is that they are capable of generating a more complete view of the sensed environment by acquiring larger quantities of correlated data than independent sensor monitors. This makes them ideally suited for applications where a complex environment with many interdependent factors must be monitored. The aircraft cabin is one such example of a highly dynamic environment which necessitates the use of an advanced sensing system. Thus, in order to gain a better understanding of the aircraft …
A Portable Wireless Particulate Sensor System For Continuous Real-Time Environmental Monitoring, James A. Hall Jr., Sin Ming Loo, Dale Stephenson, Ross Butler, Michael Pook, Joshua Kiepert, Jordan Anderson, Nicholas Terrell
A Portable Wireless Particulate Sensor System For Continuous Real-Time Environmental Monitoring, James A. Hall Jr., Sin Ming Loo, Dale Stephenson, Ross Butler, Michael Pook, Joshua Kiepert, Jordan Anderson, Nicholas Terrell
Electrical and Computer Engineering Faculty Publications and Presentations
Airborne particulate matter has been shown to be associated with morbidity and mortality, and may interfere with certain sensitive experiment. Understanding the levels and movements of particulate matter in an enclosed space can lead to a reduction in the impact of this material on health and experimental results. A system of environmental sensors including particulate matter, selected gasses, humidity, temperature, and pressure can be used to assist in tracking air movement, providing real-time mapping of potential contaminants as they move through a space. In this paper we present a system that is capable of sensing these environmental factors, collecting data …
Toward A Gpu-Accelerated Immersed Boundary Method For Wind Forecasting Over Complex Terrain, Rey Deleon, Kyle Felzien, Inanc Senocak
Toward A Gpu-Accelerated Immersed Boundary Method For Wind Forecasting Over Complex Terrain, Rey Deleon, Kyle Felzien, Inanc Senocak
Mechanical and Biomedical Engineering Faculty Publications and Presentations
A short-term wind power forecasting capability can be a valuable tool in the renewable energy industry to address load-balancing issues that arise from intermittent wind fields. Although numerical weather prediction models have been used to forecast winds, their applicability to micro-scale atmospheric boundary layer flows and ability to predict wind speeds at turbine hub height with a desired accuracy is not clear. To address this issue, we develop a multi-GPU parallel flow solver to forecast winds over complex terrain at the micro-scale, where computational domain size can range from meters to several kilometers. In the solver, we adopt the immersed …
What Value Does Service Learning Have On Introductory Engineering Students' Motivation And Abet Program Outcomes?, Carol Sevier, Seung Youn Chyung, Janet Callahan, Cheryl Schrader
What Value Does Service Learning Have On Introductory Engineering Students' Motivation And Abet Program Outcomes?, Carol Sevier, Seung Youn Chyung, Janet Callahan, Cheryl Schrader
Organizational Performance and Workplace Learning Faculty Publications and Presentations
A quasi-experimental study was conducted to investigate the effectiveness of using a service learning (SL) method on influencing introductory engineering students' motivation and ABET program outcomes, compared to the effectiveness of using a conventional, non-service-learning (NSL) method. The sample used in the study was 214 students enrolled in an Introduction to Engineering course at a medium-size university in the northwestern region of the U.S. during the fall semester of 2009 and the spring semester of 2010. Sixty-nine students completed SL projects while 145 students completed NSL projects. Both SL and NSL projects were team-based. Using the ARCS model as a …
Kinematic And Kinetic Synergies Of The Lower Extremities During The Pull In Olympic Weightlifting, Kristof Kipp, Josh Redden, Michelle Sabick, Chad Harris
Kinematic And Kinetic Synergies Of The Lower Extremities During The Pull In Olympic Weightlifting, Kristof Kipp, Josh Redden, Michelle Sabick, Chad Harris
Mechanical and Biomedical Engineering Faculty Publications and Presentations
The purpose of this study was to identify multijoint lower extremity kinematic and kinetic synergies in weightlifting and compare these synergies between joints and across different external loads. Subjects completed sets of the clean exercise at loads equal to 65, 75, and 85% of their estimated 1-RM. Functional data analysis was used to extract principal component functions (PCF's) for hip, knee, and ankle joint angles and moments of force during the pull phase of the clean at all loads. The PCF scores were then compared between joints and across loads to determine how much of each PCF was present at …
Weightlifting Performance Is Related To Kinematic And Kinetic Patterns Of The Hip And Knee Joints, Kristof Kipp, Josh Redden, Michelle B. Sabick, Chad Harris
Weightlifting Performance Is Related To Kinematic And Kinetic Patterns Of The Hip And Knee Joints, Kristof Kipp, Josh Redden, Michelle B. Sabick, Chad Harris
Mechanical and Biomedical Engineering Faculty Publications and Presentations
The purpose of this study was to investigate correlations between biomechanical outcome measures and weightlifting performance. Joint kinematics and kinetics of the hip, knee, and ankle were calculated while ten subjects performed a clean at 85% of 1-RM. Kinematic and kinetic time-series patterns were extracted with principal components analysis. Discrete scores for each time-series pattern were calculated and used to determine how each pattern was related to body-mass normalized 1-RM. Two hip kinematic and two knee kinetic patterns were significantly correlated with relative 1-RM. The kinematic patterns captured hip and trunk motions during the first pull and hip joint motion …
How Rapidly Should Developing Countries Implement Intelligent Transportation Systems (Its) To Solve The Growing Urban Traffic Congestion Problem?, Mandar Khanal
Civil Engineering Faculty Publications and Presentations
Many newly developing countries are growing rapidly. One example is India, currently the second most populous country in the world. According to the Indian Ministry of Urban Development, from 1981 to 2001, the population in six major Indian cities increased twofold while motor vehicles increased eightfold. Such rapid growth in vehicles without a comparable growth in transportation infrastructure leads to increasing traffic congestion. Cities in India are already considered congested today, and are going to be even more congested in the coming years since the rate of urbanization in India in 2006 was only 29% and is expected to grow …
Effect Of Fluxing Additive On Sintering Temperature, Microstructure And Properties Of Batio3, Yaseen Iqbal, Asad Jamal, Riaz Ullah, M. Naeem Khan, Rick Ubic
Effect Of Fluxing Additive On Sintering Temperature, Microstructure And Properties Of Batio3, Yaseen Iqbal, Asad Jamal, Riaz Ullah, M. Naeem Khan, Rick Ubic
Materials Science and Engineering Faculty Publications and Presentations
Various fluxing materials are added to technical ceramics in an attempt to lower their sintering temperatures and make their processing economical. The effect of 0·3wt% Li2CO3 addition on the phase, microstructure, phase transition temperatures and dielectric properties of BaTiO3 was investigated in the present study. The addition of 0·3wt% Li2CO3 was observed to lower the optimum sintering temperature by ∼200◦C with no second phase formation and cause a five-fold reduction in grain size. Rhombohedral-to-orthorhombic and tetragonal-to-cubic phase transitions at the expected temperatures were evident from the Raman spectra, but the orthorhombic-totetragonal phase transition …
Near Surface Hydrometeorology For Sustainable Water Management, V. Sridhar, W. T. A. Jaksa
Near Surface Hydrometeorology For Sustainable Water Management, V. Sridhar, W. T. A. Jaksa
Civil Engineering Faculty Publications and Presentations
Due to strong interactions between the land and atmosphere and the resulting feedbacks as altered by the anthropogenic changes, it is critical to quantify the surface fluxes and boundary layer properties that has direct implications on the regional evolution of hydrometeorology. This study evaluates the impact of irrigation using the Weather Research and Forecasting (WRF) numerical weather prediction (NWP) model in the Snake River Basin in Idaho. Our simulation extends for the period in the growing season and compares the control and irrigation runs to assess the irrigation induced cooling on the surface energy balance. Understanding this near surface cooling …
Biomedical Matching Gui Development, Nazia Sarang
Biomedical Matching Gui Development, Nazia Sarang
Electrical and Computer Engineering Graduate Theses and Dissertations
Biomedical researchers constantly search for new methods to diagnose the extent of joint injuries in live human subjects. In order to achieve this, the researchers need to know the accurate three dimensional kinematic data of bones and joints and to accurately quantify how bones in a joint move relative to one another during dynamic activities. Algorithms have been developed previously to estimate the exact spatial position and movement of the bones. These methods involved generation of digitally reconstructed radiographs (DRR) from a three dimensional CT scan image of human joint with known position and orientation and comparing it with the …
Phase Matching For Surface Plasmon Enhanced Second Harmonic Generation In A Gold Grating Slab, Ngoc Luong, Cheng-Wen Cheng, Min-Hsiung Shih, Wan Kuang
Phase Matching For Surface Plasmon Enhanced Second Harmonic Generation In A Gold Grating Slab, Ngoc Luong, Cheng-Wen Cheng, Min-Hsiung Shih, Wan Kuang
Electrical and Computer Engineering Faculty Publications and Presentations
Surface plasmon enhanced second harmonic generation in gold grating slabs was investigated. The efficiency is analyzed with respect to the phase matching at the fundamental and the second harmonic frequencies. A classical electromagnetic model was developed under the weak nonlinearity approximation and solved by the finite element method. The measured zeroth order transmitted second harmonic intensity was found to be in quantitative agreement with numerical results. It is shown experimentally and numerically that proper phase matching at both frequencies improves the second harmonic efficiency.
Robust Self-Replication Of Combinatorial Information Via Crystal Growth And Scission, Rebecca Schulman, Bernard Yurke, Erik Winfree
Robust Self-Replication Of Combinatorial Information Via Crystal Growth And Scission, Rebecca Schulman, Bernard Yurke, Erik Winfree
Electrical and Computer Engineering Faculty Publications and Presentations
Understanding how a simple chemical system can accurately replicate combinatorial information, such as a sequence, is an important question for both the study of life in the universe and for the development of evolutionary molecular design techniques. During biological sequence replication, a nucleic acid polymer serves as a template for the enzyme-catalyzed assembly of a complementary sequence. Enzymes then separate the template and complement before the next round of replication. Attempts to understand how replication could occur more simply, such as without enzymes, have largely focused on developing minimal versions of this replication process. Here we describe how a different …
Multi-Bit Continuous-Time Delta-Sigma Modulator For Audio Application, Rajaram Mohan Roy Koppula, Sakkarapani Balagopal, Vishal Saxena
Multi-Bit Continuous-Time Delta-Sigma Modulator For Audio Application, Rajaram Mohan Roy Koppula, Sakkarapani Balagopal, Vishal Saxena
Electrical and Computer Engineering Faculty Publications and Presentations
The design considerations for low-power continuous time (CT) delta-sigma (ΔΣ) modulators is studied and circuit design details for a 13.5 bit modulator are given. The converter has been designed in a 0.5 um C5FN AMI CMOS technology and achieves a maximum signal-to-noise ratio (SNR) of 85 dB in a 48 kHz bandwidth and dissipates 5.4 mW from a 5 V supply when clocked at 6.144 MHz. It features a third-order active-RC loop filter, a 4-bit flash quantizer along with a Data Weighted averaging (DWA). The loop filter architecture and its coefficients have been targeted for the minimum …
Repairing Mixed-Conducting, Ceramic Electrolyte Films, Kevin Tolman, Izaak Williamson, Kokfoong Chan
Repairing Mixed-Conducting, Ceramic Electrolyte Films, Kevin Tolman, Izaak Williamson, Kokfoong Chan
College of Engineering Poster Presentations
Ceramatec, Inc. develops ceramic-electrolyte thin films for gas separation/purification technologies. Specific ions (e.g., oxygen) can be selectively diffused through these films in order to obtain a desired product, such as syngas or pure O2. During production, residual stresses develop within the films which induce defects, such as pinholes, micro-cracks, and other sources of leaks, that allow gas contamination. To improve large-scale film production yield, four application techniques were analyzed for their feasibility of restoring the integrity of the films. Controlled, uniform defects were introduced to the films using a microindenter to enable an effective comparison of application techniques …
Particle Size Characterization Of Ferritic Oxide Dispersion Strengthened Alloy Powders, Sumit R. Tamrakar
Particle Size Characterization Of Ferritic Oxide Dispersion Strengthened Alloy Powders, Sumit R. Tamrakar
College of Engineering Poster Presentations
Ferritic oxide dispersion strengthened (ODS) alloys are candidate materials for use in extreme applications due to their excellent high temperature strength. Fe81Cr16Mo3 and Fe81Cr16Al3 alloys were ball milled for various durations with 0.5 wt. % Y2O3 nanometer sized particles prior to consolidation via spark plasma sintering (SPS). The particle size characterization was completed using optical microscopy, scanning electron microscopy (SEM), and laser scattering. The median particle size of Fe81Cr16Mo3+0.5 wt. % Y2O3 powder increased from 9µm to 31µm …
Camp Rainbow Gold: New Design, Andrew Campbell, Marcus Rasulo, Alex Nelson, Jill Pruett, Jarom Gray
Camp Rainbow Gold: New Design, Andrew Campbell, Marcus Rasulo, Alex Nelson, Jill Pruett, Jarom Gray
College of Engineering Poster Presentations
Camp Rainbow Gold is a summer camp for children diagnosed with cancer. The camp has experienced substantial growth since its inception, reaching the capacity of its current site, and is exploring alternative sites. Awesome Engineering was tasked to design a new resident camp facility to meet the needs of a growing Camp Rainbow Gold as a Civil Engineering Design project. We were given a 77-acre site located two miles south of Bellevue, Idaho, and a list of facility requirements for the camp. Our job is to design the facilities as well as investigate the required permits and codes. We will …
Ten Mile Road Interchange And Bridge Design, Brian Portugais, Joshua Lee, Darryl Joinol, Shelby Bittner, Alex Dow, Nicolette Villagomez, Jonathan Solano
Ten Mile Road Interchange And Bridge Design, Brian Portugais, Joshua Lee, Darryl Joinol, Shelby Bittner, Alex Dow, Nicolette Villagomez, Jonathan Solano
College of Engineering Poster Presentations
The Ten Mile Road Bridge crossing I-84 in Meridian, Idaho was determined to be inadequate. A new interchange capable of accommodating traffic volumes through 2030 has been proposed. We will demonstrate through computer modeling that a Single Point Urban Interchange (SPUI) configuration is a safe and effective interchange option for managing the Ten Mile Road configuration. Design of the Single Point Urban Interchange (SPUI) will include a new six lane, composite, simple span bridge with four ramps converging on a single traffic control point. The bridge design is composed of two simple spans supported by piers and abutments. Reinforced concrete …
Verification Of Particle Image Velocimeter For Study Of Martian And Lunar Regoliths, Kristopher Burch, Eric Wright, Jozey Mitcham, Alfredo Bravo Iniguez
Verification Of Particle Image Velocimeter For Study Of Martian And Lunar Regoliths, Kristopher Burch, Eric Wright, Jozey Mitcham, Alfredo Bravo Iniguez
College of Engineering Poster Presentations
The behavior of dust, or regolith, on Mars and the moon is critical to our understanding of the Martian and lunar environments. The dust interaction with space suits and other equipment is a major concern for long term space missions. Dust on the moon greatly deteriorated the space suits in NASA’s Apollo program. We have developed a test enclosure for the study of dust motion. NASA’s Goddard Space Flight Center has developed a Particle Image Velocimeter (PIV) to measure the velocity and size of thousands of moving particles. The PIV was developed as a demonstration project for use on possible …
Versatile In-Situ Engine Lubricant Health Sensor, Sanjeev Acharya
Versatile In-Situ Engine Lubricant Health Sensor, Sanjeev Acharya
College of Engineering Poster Presentations
Lubricants which are used in engines to reduce friction, promote engine cooling, and prevent corrosion degrade with time under harsh engine operating conditions and hence need to be changed periodically. Since degradation of oil is a result of number of mechanisms such as; engine component wear, oil oxidation, water ingress, and carbon particles, a versatile and microscopic in-situ sensor that can sense quality of wide variety of engine lubricant brands at various temperatures and pressures is of great need. This problem can be resolved by applying portable interdigitated micro-sensors to examine the impedance behavior of degraded lubricants through electrochemical tests. …
Impacts Of Climate Change On Hydrology And Water Resources In The Boise And Spokane River Basins, Xin Jin, Venkataramana Sridhar
Impacts Of Climate Change On Hydrology And Water Resources In The Boise And Spokane River Basins, Xin Jin, Venkataramana Sridhar
Civil Engineering Faculty Publications and Presentations
In the Pacific Northwest, warming climate has resulted in a lengthened growing season, declining snowpack, and earlier timing of spring runoff. This study characterizes the impact of climate change in two basins in Idaho, the Spokane River and the Boise River basins. We simulated the basin-scale hydrology by coupling the downscaled precipitation and temperature outputs from a suite of global climate models and the Soil and Water Assessment Tool (SWAT), between 2010 and 2060 and assess the impacts of climate change on water resources in the region. For the Boise River basin, changes in precipitation ranged from −3.8 to 36%. …
Microstructural Characterization Of Next Generation Nuclear Graphites, Chinnathambi Karthik, Joshua Kane, Darryl P. Butt, William E. Windes, Rick Ubic
Microstructural Characterization Of Next Generation Nuclear Graphites, Chinnathambi Karthik, Joshua Kane, Darryl P. Butt, William E. Windes, Rick Ubic
Materials Science and Engineering Faculty Publications and Presentations
This article reports the microstructural characteristics of various petroleum and pitch based nuclear graphites (IG-110, NBG-18, and PCEA) that are of interest to the next generation nuclear plant program. Bright-field transmission electron microscopy imaging was used to identify and understand the different features constituting the microstructure of nuclear graphite such as the filler particles, microcracks, binder phase, rosette-shaped quinoline insoluble (QI) particles, chaotic structures, and turbostratic graphite phase. The dimensions of microcracks were found to vary from a few nanometers to tens of microns. Furthermore, the microcracks were found to be filled with amorphous carbon of unknown origin. The pitch …
Effect Of “Ground Truth” On Image Binarization, Elisa H. Barney Smith, Chang An
Effect Of “Ground Truth” On Image Binarization, Elisa H. Barney Smith, Chang An
Electrical and Computer Engineering Faculty Publications and Presentations
Image binarization has a large effect on the rest of the document image analysis processes in character recognition. Algorithm development is still a major focus of research. Evaluation of image binarization has been done by comparison of the result of OCR systems on images binarized by different methods. That has been criticized in that the binarization alone is not evaluated, but rather how it interacts with the downstream processes. Recently pixel accurate "ground truth" images have been introduced for use in binarization algorithm evaluation. This has been shown to be open to interpretation. The choice of binarization ground truth affects …
Interaction Between Electromagnetic Waves And Transport In Saturated Media, Mahsa Azad, Harlan Sangrey, Arvin Farid, Jim Browning, Elisa Barney Smith
Interaction Between Electromagnetic Waves And Transport In Saturated Media, Mahsa Azad, Harlan Sangrey, Arvin Farid, Jim Browning, Elisa Barney Smith
Civil Engineering Faculty Publications and Presentations
Air sparging is one of the most popular remediation technologies. However, it is limited to a small radius of influence (ROI) surrounding the air injection well. Hence, there have been several efforts to improve its effectiveness. To study the possibility of improving the effectivity of air sparging electromagnetic (EM) waves, an easily visible analogous problem (dye transport in water) is studied in this paper. In order to quantify the effects of EM stimulation on flow of an inert, nonreactive dye in water, EM-stimulated and unstipulated dye transport experiments tests were performed and compared. To quantify this interaction, both dye transport …
A Unified Wireless Sensor Network Framework, Joshua Kiepert, Sin Ming Loo
A Unified Wireless Sensor Network Framework, Joshua Kiepert, Sin Ming Loo
Electrical and Computer Engineering Faculty Publications and Presentations
Wireless sensor networks (WSNs) have been a significant area of research over the past decade. WSN systems are used in a wide range of applications such as surveillance, environmental monitoring, target tracking, wildlife tracking, personal health monitoring, machinery monitoring, and many others. With such wide ranging applications, there is active research in nearly every facet of the field including network topologies, communication protocols, node localization, time synchronization, and sensor data processing. This movement has largely been the result of the advances in microelectronics and low-power radio systems. These advancements have enabled the design and implementation of small, powerful, low-power, wireless …
Application Of Image Processing To Track Twin Boundary Motion In Magnetic Shape Memory Alloys, Adrian Rothenbuhler, Elisa Barney Smith, Peter Müllner
Application Of Image Processing To Track Twin Boundary Motion In Magnetic Shape Memory Alloys, Adrian Rothenbuhler, Elisa Barney Smith, Peter Müllner
Electrical and Computer Engineering Faculty Publications and Presentations
Materials scientists make use of image processing tools more and more as technology advances and the data volume that needs to be analyzed increases. We propose a method to optically measure magnetic eld induced strain (MFIS) as well as twin boundary movement in Ni2MnGa single crystal shape memory alloys to facilitate spatially resolved tracking of deformation. Current magneto-mechanical experiments used to measure MFIS can measure strain only in one direction and do not provide information about the movement of individual twin boundaries. A sequence of images captured from a high resolution camera is analyzed by a boundary detection …