Digital Commons Network^™

Psuedo-Randomly Controlled Analog Synthesizer, Jared Huntington

Electrical Engineering

The goal of this project was to design and build a portable box recreating classic sounds heard in science fiction films. These include sounds ranging from droning hums to bloops and bleeps. Currently no other device is made specifically for generating these sounds. The user controls and manipulates the sounds produced using a combination of switches and knobs to shape the sound generation. The sounds are generated using analog electronics. The project was successful in meeting the desired goal by designing and building a Randomizer, MIDI controller, VCO, LFO, VCA, Ring Modulator, and Fuzz Section. The resulting device is useful …

Switching Circuit For A Permanent Magnet Dc Motor, Alex Boatman

Electrical Engineering

The project is a circuit that will basically supply current from the battery to the different stator coils at opportune moments. With a hall-effect sensor on the shaft as a feedback to a microcontroller, I was able to toggle switches based on the position of the shaft at the moments where we would be using as little power as possible. The operation of the control circuit works similar to a stepper motor; it takes a signal from the microcontroller that is sent to some FET drivers, which in turn sends signals to the FETs to open or close as the …

Automated Basketball Return System, Victor Mendoza, Chris Chamberlain

Electrical Engineering

The project is meant to assist a basketball player in their practicing. The project hangs directly on the basketball rim and automatically rotates to find the player on the court. Once the player is detected, the automated basketball return system (ABRS) stays focused in the direction of the player so that any baskets successfully made will be funneled back to the player. When the player moves from center, IR motion detectors find which direction you moved to and rotates accordingly, until the player is focused in front of the funnel again. If at any time the player is absent from …

Lab-Scale Thyristor Rectifier And Static Var Compensator Circuits, Haroun Idris, Ibrahim Idris

Electrical Engineering

The purpose of this project is to design thyristor circuits by using single-phase FCRO 4100 firing board donated by ENERPRO. These circuits in conjunction with a thyristor module will be used for future lab experiments in power electronics courses.

The first part of this project is to study the full effect of a firing angle on a controlled single phase full bridge thyristor rectifier circuit. Furthermore, the resulting circuit setup will be implemented as part of future lab experiments in Power Electronics I course. The next purpose of this project is to design a small-scale Static VAR Compensator (SVC) lab …

Dc-Dc Converter For Harvesting Energy From An Exercise Bike, Henry Ureh, Chris Henry

Electrical Engineering

Create an efficient buck-boost converter that adapts to input voltage range from ~3.8V to 70V, and outputs 13.7V DC, the voltage required by a charge controller to charge a battery. The energy stored in the battery will be supplied back to the grid.

The cost of energy saved by the converter should eventually cover the initial price of the converter. The converter should help reduce the net power consumption of the exercise machines used in the Cal Poly gym

Overcurrent Coordination Study, Edwin Pho

Electrical Engineering

No abstract provided.

Effects On Digital Image Quality When Photographing Through A Transparent Material Used To Hold Or Flatten An Original Object, Paul E. Howell

Masters Theses

An increasing number of libraries and archives are initiating projects where new and updated technologies make it practical to digitize materials containing color and fine detail. Many of the imaging systems and methods used for this process require that some type of glass or plastic be placed over the original to hold it flat and in the correct position during image capture. The physical properties of a material placed between an original object and the capture system or camera, during digitization, could possibly affect the accuracy of image color and quality being reproduced by the system. This investigation provides an …

Sci-Tech Contributed Papers For The 2010 Sla Conference

Sci-Tech News

No abstract provided.

Aerospace Section News, Gale Harris

Sci-Tech News

No abstract provided.

The Daily Gamecock, Tuesday, December 1, 2009, University Of South Carolina, Office Of Student Media

December

No abstract provided.

Stimuli-Responsive Hydrogel Microdomes Integrated With Genetically Engineered Proteins For High-Throughput Screening Of Pharmaceuticals, Sylvia Daunert, Sapna K. Deo, Jason Douglas Ehrick, Tyler William Browning, Leonidas G. Bachas

Chemistry Faculty Patents

A hydrogel microdome that can swell in response to a stimuli or target molecule is formed by polymerizing a mixture comprising a monomer capable of forming a hydrogel with a biopolymer. An array of hydrogel microdomes can be formed on a substrate by microspotting the mixture and polymerizing. The array can be used for high-throughput screening of analytes as well as for use as an actuator and biosensor using the swelling property of the hydrogel.

Fuzzy Logic In Neurosurgery: Predicting Poor Outcomes After Lumbar Disk Surgery In 501 Consecutive Patients, Muhammad Shahzad Shamim, Ather Enam, Uvais Qidwai

Section of Neurosurgery

Background: Despite a lot of research into Patient selection, a significant number of Patients fail to benefit from surgery for symptomatic lumbar disk herniation. We have used Fuzzy Logic-based fuzzy inference system (FIS) for identifying Patients unlikely to improve after disk surgery and explored FIS as a tool for surgical outcome prediction.
Methods: Data of 501 Patients were retrospectively reviewed for 54 independent variables. Sixteen variables were short-listed based on heuristics and were further classified into memberships with degrees of membership within each. A set of 11 rules was formed, and the rule base used individual membership degrees and their …

Sustained Release Of Multiple Growth Factors From Injectable Polymeric System As A Novel Therapeutic Approach Towards Angiogenesis, Qinghua Sun, Eduardo A. Silva, Aixia Wang, James C. Fritton, David J. Mooney, Mitchell B. Schaffler, Paul M. Grossman, Sanjay Rajagopalan

Publications and Research

Purpose The aim was to investigate that a bio-degradable alginate and poly lactide-co-glycolide (PLG) system capable of delivering growth factors sequentially would be superior to single growth factor delivery in promoting neovascularization and improving perfusion. Methods Three groups of apoE null mice underwent unilateral hindlimb ischemia surgery and received ischemic limb intramuscular injections of alginate (Blank), alginate containing VEGF165 (VEGF), or alginate containing VEGF165 combined with PLG microspheres containing PDGF-BB (VEGF/PDGF). Vascularity in the ischemic hindlimb was assessed by morphologic and immunohistochemical end-points, while changes in blood flow were assessed by Laser Doppler Perfusion Index. Muscle VEGF and PDGF content …

The New Adventures Of The Common Law, Damien P. Horigan

Pace International Law Review Online Companion

One of the arguably unexpected legal developments during the first decade of this century has been the emergence of new common law jurisdictions in a region with a very different legal heritage – the Arabian Peninsula. These young jurisdictions have been created specifically to foster the growth of new hubs for banking and finance. This article will examine these new adventures of the common law.

The Archway Investment Fund Semi Annual Report, December 2009, Bryant University, Archway Investment Fund

Archway Investment Fund

No abstract provided.

Mentor Profile, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

Full Issue, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.

The Riaa’S Troubling Solution To File- Sharing , Genan Zilkha

Fordham Intellectual Property, Media and Entertainment Law Journal

No abstract provided.

2009 - University Chorus, Neiu Music Department

Music Department Performance Programs

University Chorus, Chamber Singers, Michael Melton, Conductor, Kiyona Ohshika, Jane Kenas-Heller, Adrian Metzger, Accompanists, Matt Groters, Violin, Fall Concert, Leonardo Dreams of His Flying Machine, Eric Whitacre

Sos: Searching Help Pages Of R Packages, Spencer Graves, Sundar Dorai-Raj, Romain François

The R Journal

The sos package provides a means to quickly and flexibly search the help pages of contributed packages, finding functions and datasets in seconds or minutes that could not be found in hours or days by any other means we know. Its findFn function accesses Jonathan Baron’s R Site Search database and returns the matches in a data frame of class "findFn", which can be further manipulated by other sos functions to produce, for example, an Excel file that starts with a summary sheet that makes it relatively easy to prioritize alternative packages for further study. As such, it provides a …

Stochastic Analysis Of Electrostatic Mems Subjected To Parameter Variations, Nitin Agarwal, Narayana R. Aluru

PRISM: NNSA Center for Prediction of Reliability, Integrity and Survivability of Microsystems

This paper presents an efficient stochastic framework for quantifying the effect of stochastic variations in various design parameters such as material properties, geometrical features, and/or operating conditions on the performance of electrostatic microelectromechanical systems (MEMS) devices. The stochastic framework treats uncertainty as a separate dimension, in addition to space and time, and seeks to approximate the stochastic dependent variables using sparse grid interpolation in the multidimensional random space. This approach can be effectively used to compute important information, such as moments (mean and variance), failure probabilities, and sensitivities with respect to design variables, regarding relevant quantities of interest. The approach …

Program Committee Report December 2009, Regenstrief Center For Healthcare Engineering

RCHE Reports

No abstract provided.

Frequency-Domain Simulations Of A Negative-Index Material With Embedded Gain, Yonatan Sivan, Shumin Xiao, Uday K. Chettiar, Alexander V. Kildishev, V. M. Shalaev

Birck and NCN Publications

We solve the equations governing light propagation in a negative-index material with embedded nonlinearly saturable gain material using a frequency-domain model. We show that available gain materials can lead to complete loss compensation only if they are located in the regions where the field enhancement is maximal. We study the increased enhancement of the fields in the gain composite as well as in the metal inclusions and show analytically that the effective gain is determined by the average near-field enhancement.

Computational Fluid Dynamics Of Aggregating Red Blood Cells In Postcapillary Venules, Bong Jae Chung, Sangho Kim, Paul C. Johnson, Aleksander S. Popel

Department of Applied Mathematics and Statistics Faculty Scholarship and Creative Works

Aggregate formation of red blood cells (RBCs) in a postcapillary venular bifurcation is investigated with three-dimensional computer simulations using the Chimera grid method. Interaction energy between the RBCs is modelled by a depletion interaction theory; RBCs are modelled as rigid oblate ellipsoids. The cell-cell interactions of RBCs are strongly dependent on vessel geometry and shear rates. The experimental data on vessel geometry, pseudoshear rates, and Dextran concentration obtained in our previous in vivo RBC aggregation study in postcapillary venules of the rat spinotrapezius muscle were used to simulate RBC aggregation. The computational results were compared to the experimental results from …

Commencement Convocation Program, St. Petersburg Campus, December 1, 2009, University Of South Florida St. Petersburg

USF St. Petersburg Graduations and Commencements

King O'Neal Awards: Sean Amodeo, Gertrud Huessy; Regional Chancellor's Award for Civic Engagement: David Carr

December 1, 2009, Faculty Senate

Minutes

No abstract provided.

A Characterization Of Caffeine Imprinted Polypyrrole Electrode, Deepika Mandadi

Masters Theses & Specialist Projects

Nanotechnology holds great potential for improving our lives by creating many new materials and devices in medical sciences, electronics and also in energy production. Molecularly imprinted polymers (MIPs) are highly stable synthetic polymers that possess molecular recognition properties due to cavities created in the polymer matrix that are complementary to an analyte both in shape and in positioning of functional groups. These MIPs have been widely employed for diverse applications (e.g., in chromatographic separation, drug screening, chemosensors, catalysis, immunoassays etc) due to their specificity towards the target molecules and high stability against physicochemical perturbations. Conductive polymers, (CPs) such as polypyrrole, …

Service Supply And Customer Satisfaction In Public Transportation: The Quality Paradox, Margareta Friman, Markus Fellesson

Journal of Public Transportation

Satisfaction measures obtained from citizens are frequently used in performancebased contracts due to their presumed link with company performance. However, few studies have actually examined the link between traveler satisfaction measures and objective performance measures in public transport. This research analyzes the relationship between the objective performance measures of public transport services and the satisfaction perceived by travelers. Data were collected in six different European cities. Three objective service performance measures were obtained for each city from the UITP Millennium Database. Three subjective satisfaction attribute measures were obtained from Benchmarking in European Service of Public Transport (BEST 2001), answered by …

Business Outlook, Vol. 25, No. 4, December 2009

Business Outlook for West Michigan

No abstract provided.

Enforcing Intellectual Property Rights: A Methodology For Understanding The Enforcement Problem In China, Justin Mccabe

The University of New Hampshire Law Review

[Excerpt] “Intellectual property rights are neither protected nor enforced in strict uniformity throughout the world. However, it can be said that in most developed countries, intellectual property is preciously guarded, as evidenced by a plethora of intellectual property statutes, penalties for infringement, and consistent attempts to convince less developed nations to adopt strong—or stronger—intellectual property protections. Despite continued vigilance by developed countries in bringing about increased international harmony among intellectual property regimes, some developing countries sustain questionable enforcement policies. What the driving force is behind intellectual property enforcement policies—or more appropriately, the lack thereof—is a matter of disagreement. In order …