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Full-Text Articles in Entire DC Network
Modeling, Analysis And Control Of Flexible Solid-State Hysteretic Actuators, Kushan Vora
Modeling, Analysis And Control Of Flexible Solid-State Hysteretic Actuators, Kushan Vora
All Theses
A distributed parameters modeling and control framework for flexible solid-state hysteretic actuator is presented in this work. For the simplicity of analysis, the actuator dynamic behavior is decoupled and treated separately from the hysteresis nonlinearity. To include the effects of widely-used flexural mechanisms, a mass-spring-damper boundary condition is considered for system. Moreover, the effect of electromechanical actuation is included as a concentrate force at the boundary. The problem is then divided into two parts: first part deals with free motion analysis of system in order to obtain eigenvalues and eigenfunctions using the expansion theorem and a standard eigenvalue problem procedure. …
Application Of Web Services To A Simulation Framework, Matthew Bennink
Application Of Web Services To A Simulation Framework, Matthew Bennink
All Theses
The Joint Semi-Automated Forces (JSAF) simulator is an excellent tool for military training and a great testbed for new SAF behaviors. However, it has the drawback that behaviors must be ported into its own Finite State Machine (FSM) language. Web Services is a growing technology that seamlessly connects service providers to service consumers. This work attempts to merge these two technologies by modeling SAF behaviors as web services. The JSAF simulator is then modeled as a web service consumer.
This approach allows new Semi-Automated Forces (SAF) behaviors to be developed independently of the simulator, which provides the developer with greater …
Solarization Effects On Chemical Properties Of Soils Under Kudu (Pueraria Montana) Invasion, Nicole Gilbert
Solarization Effects On Chemical Properties Of Soils Under Kudu (Pueraria Montana) Invasion, Nicole Gilbert
All Theses
Solarization is an effective method for managing small areas with kudzu (Pueraria montana) invasions that may alter soil chemical properties. Conducted from 2005 to 2007 at the Clemson University Experimental Forest in Clemson, South Carolina on a Cecil clay loam (fine, kaolinitic, thermic Typic Kanhapludult), this study compares soil chemical properties under thermally-treated and non-treated plots at different depths invaded by Kudzu.
The experimental factors of treatment and depth were arranged in a factorial treatment design with 15 treatments arranged in a split plot design. The five thermal treatments were the whole plot factors which were arranged in a randomized …
The Effect Of Montmorillonite Nanoclay On Mechanical And Barrier Properties Of Mung Bean Starch Films, Bianca Stiller
The Effect Of Montmorillonite Nanoclay On Mechanical And Barrier Properties Of Mung Bean Starch Films, Bianca Stiller
All Theses
Starch is an interesting biodegradable polymer due to its excellent film forming properties, availability, and low cost. On the other hand, starch films are often limited by their poor mechanical properties, and water resistance. The addition of montmorillonite clays have improved these properties in both petroleum and biodegradable films.
The objective of the research was to determine the effect of montmorillonite clay on the mechanical and barrier properties on mung bean starch films.
The addition of 5% clay yielded the optimum balance between mechanical and barrier properties of these composite films with improved tensile strength (TS) of 20.8763± 0.789 MPa, …
Insights Into Biogeophysical Signatures Using Polarization Force Microscopy, Elizabeth Bartosik
Insights Into Biogeophysical Signatures Using Polarization Force Microscopy, Elizabeth Bartosik
All Theses
The success of bioremediation strategies is dependent upon effective monitoring of microorganisms in the subsurface. Induced polarization (IP) may represent a cost-effective, complementary technique to existing borehole-based microbe detection schemes. Recent studies show a significant, yet poorly understood IP effect associated with the presence of bacteria in aqueous and porous media. This effect is believed to be rooted in the physicochemical surface interactions between cells and minerals which we probe using polarization force microscopy. Polarization force experiments were conducted on a hydrated mica surface using the gram positive bacterium Bacillus subtilis and the gram negative bacterium Escherichia coli. On all …
Laboratory Studies Of Responses Of Anuran Amphibians To Roundup Exposures: Reference Toxicant And Components, Lindsay Moore
Laboratory Studies Of Responses Of Anuran Amphibians To Roundup Exposures: Reference Toxicant And Components, Lindsay Moore
All Theses
Roundup¨ has been implicated as a possible cause for the declining amphibian populations in North America. Carefully designed laboratory toxicity tests are crucial for accurate risk assessment of the responses of anuran populations to incidental exposures of Roundup¨ herbicides. The overall objective of these studies was to determine the response of North American anuran species to exposures of Roundup¨ formulations and components to support or refute the claim that Roundup¨ is a factor in amphibian decline in North America. Aqueous 96 hour static non-renewal laboratory tests were utilized to (1) evaluate the effectiveness of copper sulfate as a reference toxicant …
Computational Analysis Of Input-Shaping Control Of Microelectromechanical Mirrors, Thomas Starling
Computational Analysis Of Input-Shaping Control Of Microelectromechanical Mirrors, Thomas Starling
All Theses
Advances in micromachining technology have enabled the design and development of high performance microelectromechanical systems (MEMS). There is a pressing need for control techniques that can be used to improve the dynamic behavior of MEMS such as the response speed and precision. In MEMS applications, open-loop control is attractive as it computes a priori the required system input to achieve desired dynamic behavior without using feedback, thus eliminating the problems associated with closed-loop MEMS control. While the input-shaping control is attractive due to its simplicity, the effectiveness of this control approach depends on the accuracy of the model that is …
New American Witches: A Transitioning Figure In The Twentieth Century, Daniel Grafton
New American Witches: A Transitioning Figure In The Twentieth Century, Daniel Grafton
All Theses
This thesis compares the Wiccan faith with fantasy literature of the twentieth century in an effort to reveal the spread of radical feminist thought between 1963 and 1983 by examining how these groups represented the shared figure of the witch. By comparing these different representations it may be determined whether radical feminist thought was promoted through fantasy literature. If the figure of the witch did become radically feminist in this popular setting then this would indicate a broader acceptance of radical feminist thought in American culture. This is examined by establishing a definition of fantasy literature during the late twentieth …
P-M Characteristics Of Reinforced Concrete Sections, Paul Johnson
P-M Characteristics Of Reinforced Concrete Sections, Paul Johnson
All Theses
This manuscript presents two parametric studies which were performed to evaluate a provision which originated in the 1994 Uniform Building Code (UBC). This provision states that if gravity-induced axial loads carried by a reinforced concrete member are greater than 35% of the pure axial load-carrying capacity (Po) of that member, then the member cannot be used as part of the lateral force resisting system (LRFS). Along with the UBC provision, the Structural Engineers Association of California's (SEAOC) Blue Book states that the value of 0.35Po corresponds to the level of axial load representing a balanced state of strain, i.e., the …
Physics Of Type Ia Supernovae, Ginger Bryngelson
Physics Of Type Ia Supernovae, Ginger Bryngelson
All Theses
Type Ia supernovae (SNe Ia), the thermonuclear explosion of a white dwarf, were once considered standard candles. However, increased observations reveal inhomogeneities in chemical composition and luminosity behavior, roughly dividing SNe Ia into three luminosity classes; super-luminous, sub-luminous, and normally-luminous. After introducing the problem in the context of previous observations and modeling, this thesis explores the physical processes occurring in a SN Ia after explosion, and discusses observations of SN light curves.
A simple model of the expanding ejecta calculates the energy deposition from the decay of radioactive Ni56 as well as photon diffusion. It produces light curves that match …
Transformation Of Sulfonamide Antibiotics On Soil Mineral Oxides, Baishu Guo
Transformation Of Sulfonamide Antibiotics On Soil Mineral Oxides, Baishu Guo
All Theses
Determining the occurrence and potential adverse effects of antibiotic pharmaceuticals released into the environment is a critical step towards responsible environmental stewardship. Under aqueous conditions typically found in soils and natural waters, the antibiotic agent sulfamethoxazole (SMX) was transformed in the presence of pyrolusite MnO2 via oxidative pathways. At least 50% loss of SMX was observed after 269 hr in acidic and basic solutions (pH 3-9). A maximum of 100% loss was recorded at pH 3 and 66% loss was recorded at circumneutral pH. Concomitantly, aqueous manganese concentrations increased to around 10 µM at pH 3 and 2 µM at …
Development Of A Quadrotor Testbed For Control And Sensor Development, Abhishek Bhargava
Development Of A Quadrotor Testbed For Control And Sensor Development, Abhishek Bhargava
All Theses
A quadrotor is an under actuated unmanned aerial vehicle (UAV) which uses thrust from four rotors to provide six degrees of freedom. This thesis outlines the development of a general purpose test bed that can be used for sensor and control algorithm development. The system includes the means to simulate a proposed controller and then a hardware in the loop implementation using the same software. The test bed was assembled and verified with a linear controller for both attitude and position control using feedback from an IMU (Inertial measurement Unit) and a Global Position System (GPS) sensor.
The linear controller …
Probing Grb Environments Through X-Ray Absorption, Hala Eid
Probing Grb Environments Through X-Ray Absorption, Hala Eid
All Theses
Although long-duration GRBs (LGRBs) are highly transient in nature, their early afterglow can in principle be detected to very high redshifts (Lamb & Reichart, 2000). This makes them potent probes of the chemical evolution and content of the high-redshift universe. In this work, we use photoelectric absorption observed in the XRT spectra of LGRBs to investigate the evolution of metallicities and hydrogen column densities of LGRB host galaxies. Using a high-quality sample of LGRBs indicates the presence of a weak anti-correlation between the abundances and redshift. We also find an evolution trend in intrinsic column density. To confirm these correlations, …
The Origin Of The 511 Kev Positron Annihilation Emission Morphology, Bethany Johns
The Origin Of The 511 Kev Positron Annihilation Emission Morphology, Bethany Johns
All Theses
The 511 keV positron annhilation emission from the Galactic bulge has yet to solely be attributed to any astrophysical source of positrons. The 511 keV line, characteristic of electron-positron annihilation, was discovered in 1970 by Johnson and Haymes [1973] almost 40 years ago. Most recently the INTERnational Gamma-Ray Astrophysical Laboratory (INTEGRAL) [Knodlseder 1997] has measured the annihilation rates of both components of the Galaxy. The bulge and disk annihilation rates are (1.5 ± 0.1) x 10^43 e+ s^-1 and(0.3 ± 0.2) x 10^43 e+ s^-1, respectively. The ratio of the bulge rate to that of the disk ranges from 3-9. …
Multicolor Conjugated Polymer Dots For Biological Fluorescence Imaging, Changfeng Wu, Barbara Bull, Craig Szymanski, Kenneth Christensen, Jason Mcneill
Multicolor Conjugated Polymer Dots For Biological Fluorescence Imaging, Changfeng Wu, Barbara Bull, Craig Szymanski, Kenneth Christensen, Jason Mcneill
Publications
Highly fluorescent conjugated polymer dots were developed for demanding applications such as fluorescence imaging in live cells. These nanoparticles exhibit small particle diameters, extraordinary fluorescence brightness, and excellent photostability. Single particle fluorescence imaging and kinetic studies indicate much higher emission rates (∼108 s−1) and little or no blinking of the nanoparticles as compared to typical results for single dye molecules and quantum dots. Analysis of single particle photobleaching trajectories reveals excellent photostability—as many as 109 or more photons emitted per nanoparticle prior to irreversible photobleaching. The superior figures of merit of these new fluorescent probes, together …
On The Electrostatic Component Of Protein-Protein Binding Free Energy, Kemper Talley, Carmen Ng, Michael Shoppell, Petras Kundrotas, Emil Alexov
On The Electrostatic Component Of Protein-Protein Binding Free Energy, Kemper Talley, Carmen Ng, Michael Shoppell, Petras Kundrotas, Emil Alexov
Publications
Calculations of electrostatic properties of protein-protein complexes are usually done within framework of a model with a certain set of parameters. In this paper we present a comprehensive statistical analysis of the sensitivity of the electrostatic component of binding free energy (DeltaDeltaGel) with respect with different force fields (Charmm, Amber, and OPLS), different values of the internal dielectric constant, and different presentations of molecular surface (different values of the probe radius). The study was done using the largest so far set of entries comprising 260 hetero and 2148 homo protein-protein complexes extracted from a previously developed database of protein complexes …
Multiwavelength Analysis Of The Intriguing Grb 061126: The Reverse Shock Scenario And Magnetization, A. Gomboc, S. Kobayashi, C. Guidorzi, A. Melandri, V. Mangano, B. Sbarufatti, C. G. Mundell, P. Schady, R. J. Smith, A C. Updike, D A. Kann, K Misra, E Rol, A Pozanenko, A J. Castro-Tirado, G C. Anupama, D Bersier, M F. Bode, D Carter, P Curran, A Fruchter, J Graham, Dieter H. Hartmann, M Ibrahimov, A Levan, A Monfardini, C J. Mottram, P T. O'Brien, P Prema, D K. Sahu, I A. Steele, N R. Tanvir, K Wiersema
Multiwavelength Analysis Of The Intriguing Grb 061126: The Reverse Shock Scenario And Magnetization, A. Gomboc, S. Kobayashi, C. Guidorzi, A. Melandri, V. Mangano, B. Sbarufatti, C. G. Mundell, P. Schady, R. J. Smith, A C. Updike, D A. Kann, K Misra, E Rol, A Pozanenko, A J. Castro-Tirado, G C. Anupama, D Bersier, M F. Bode, D Carter, P Curran, A Fruchter, J Graham, Dieter H. Hartmann, M Ibrahimov, A Levan, A Monfardini, C J. Mottram, P T. O'Brien, P Prema, D K. Sahu, I A. Steele, N R. Tanvir, K Wiersema
Publications
We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multicolor optical imaging from 10 ground-based telescopes. GRB 061126 was a long burst (T90 ¼191 s) with four overlapping peaks in its -ray light curve. The X-ray afterglow, observed from 26 minutes to 20 days after the burst, shows a simple power-law decay with X ¼1:290 Æ0:008. Optical observations presented here cover the time range from 258 s (Faulkes Telescope North) to 15 days (Gemini North) after the burst; the decay rate of the optical afterglow shows a steep-to-shallow …
Human Health & Water Issues - Micro & Macro: Harmful Algal Blooms, Climate Change & Infectious Diseases Disaster-Related H20 Injuries, Illnesses, Robert Ball
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Private Property, Public Resource, Public Problem: The Role Of Participation In Developing Innovative Stormwater Management Approaches In Aiken, South Carolina, Victoria Chanse
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Regional Assessments Of Nutrient Sources, Transport, And Delivery To Streams And Coastal Areas, Mike Woodside
Regional Assessments Of Nutrient Sources, Transport, And Delivery To Streams And Coastal Areas, Mike Woodside
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Recovery, Reuse, And Recycling Of Debris From The Demolition Of The Grace And Pearman Bridges At Charleston, South Carolina, Fred L. Cooper
Recovery, Reuse, And Recycling Of Debris From The Demolition Of The Grace And Pearman Bridges At Charleston, South Carolina, Fred L. Cooper
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Hydrologic And Water Quality Monitoring On Turkey Creek Watershed, Francis Marion National Forest, Sc, D M. Amatya, T J. Callahan, A Radecki-Pawlik, P Drewes, C Trettin, W F. Hansen
Hydrologic And Water Quality Monitoring On Turkey Creek Watershed, Francis Marion National Forest, Sc, D M. Amatya, T J. Callahan, A Radecki-Pawlik, P Drewes, C Trettin, W F. Hansen
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Cooperative Restoration Programs In Critical Habitats In The Upper South Carolina Coastal Region, J M. Whetstone, C L. Page, C A. Gresham, M C. Nespeca
Cooperative Restoration Programs In Critical Habitats In The Upper South Carolina Coastal Region, J M. Whetstone, C L. Page, C A. Gresham, M C. Nespeca
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Preparing For The Worst: Integrated Drought Planning For A Sc Water Utility In The Age Of Water Scarcity, Hope Walker, Robert Osborne, Clint Shealy, Mike Caston, Billy Cothran
Preparing For The Worst: Integrated Drought Planning For A Sc Water Utility In The Age Of Water Scarcity, Hope Walker, Robert Osborne, Clint Shealy, Mike Caston, Billy Cothran
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Evaluation Of Needs And Sources For A Small Drinking Water Supply System, Kathryn Nexsen, Clint Riley
Evaluation Of Needs And Sources For A Small Drinking Water Supply System, Kathryn Nexsen, Clint Riley
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Managing Water Supply In Turbulent Times, David T. Zimmer
Managing Water Supply In Turbulent Times, David T. Zimmer
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Potable Water Needs In The Aftermath Of A Disaster: A Case Study From The 2005 Tsunami Relief Effort In Sri Lanka And Hurricane Katrina Relief Effort, G C. Greene Iv
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
The Influence Of Natural Organic Matter On The Fate And Effects Of Carbon Nanomaterials, Aj Edgington, A Rao, P Ke, L Ferguson, Sj Klaine
The Influence Of Natural Organic Matter On The Fate And Effects Of Carbon Nanomaterials, Aj Edgington, A Rao, P Ke, L Ferguson, Sj Klaine
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Alcoa-Mt. Holly Zero Process Water Discharge Using Phytotechnology, Lauren Schmelter
Alcoa-Mt. Holly Zero Process Water Discharge Using Phytotechnology, Lauren Schmelter
S.C. Water Resources Conference
2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Region
Modelling Growth And Predicting Future Developed Land In The Upstate Of South Carolina, Craig E. Campbell, Jeffery Allen, Kang Shou Lu
Modelling Growth And Predicting Future Developed Land In The Upstate Of South Carolina, Craig E. Campbell, Jeffery Allen, Kang Shou Lu
S.C. Water Resources Conference
2008 S.C. Water Resources Conference Addressing Water Challenges Facing the State and Region