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Full-Text Articles in Engineering
Pre-Saccadic Modulation Of The Visually Evoked Potential, Leslie Guadron
Pre-Saccadic Modulation Of The Visually Evoked Potential, Leslie Guadron
Dissertations and Theses
Saccades are rapid eye movements that allow us to focus the fovea on different parts of our visual environment. Many psychophysical studies have shown that subjects can discriminate stimuli presented at the saccadic target better than at any other location before an eye movement is made. It is believed that covert attention allotted to the intended destination of a saccade, called pre-saccadic attention, accounts for the improved discrimination of stimuli. Covert top-down attention, which consists of orienting your attention, and not your gaze, to an object in your visual periphery, is known to facilitate behavioral performance in a manner similar …
Responses Of Underground Structures Subjected To Blast Loading, Soufiane Nezilli
Responses Of Underground Structures Subjected To Blast Loading, Soufiane Nezilli
Dissertations and Theses
Terrorism against American citizens and assets is real and growing. The number and intensity of domestic and international terrorist events, along with the September 11, 2001, attacks, change the way Americans think and live. According to the Blue Ribbon Panel (BRP) on Bridge and Tunnel Security assigned by AASHTO, the US transportation system consists of 337 highway tunnels and 211 transit tunnels in 2003. The number is expected to grow in the near future. These tunnels are subjected to the threats of internal explosion, either accidental or maliciously intentional. Explosions inside transportation tunnels would result in direct casualties; and the …
Polymer–Based Resonant Waveguide Grating Structure And Its Applications, Antonio Jou Xie
Polymer–Based Resonant Waveguide Grating Structure And Its Applications, Antonio Jou Xie
Dissertations and Theses
Resonance waveguide grating structures have been a subject of interest for several decades. This optical technique offers unique advantages when compared with other optical components. This stems from their relatively simple structure comprised of layers, as well as their high reflection efficiency within a narrow spectral bandwidth. Typical resonance waveguide grating structures that exhibit these characteristics are cost effective and fabricated with fewer materials than conventional multilayer resonance structures. Essentially, only a grating, waveguide, and substrate layer are required for its operation. In addition, unique spectral characteristics can be obtained by varying the grating and layer structure. Among these characteristics …
Design And Construction Of A Subcooled Boiling Flow Loop With An Internally Heated Vertical Annulus For Use In Testing Departure From Nucleate Boiling (Dnb), Joseph Kreynin
Dissertations and Theses
The design and testing of an apparatus to use in subcooled boiling flow experiments. A vertical annulus flow loop was design to mimic a rod used in a reactor boiler. The system was tested at different velocities and temperatures to verify it could be used in a range of experiments to try and match real world conditions. The system managed to produce the desired outcome of bubble growth in a desired location as well as run with the PIV system showing good prospect in the intended use of the experimental set up.
A Comprehensive View Of Electrosleep: The History, Finite Element Models And Future Directions, Berkan Guleyupoglu
A Comprehensive View Of Electrosleep: The History, Finite Element Models And Future Directions, Berkan Guleyupoglu
Dissertations and Theses
Transcranial Electrical Stimulation (tES) encompasses all methods of non-invasive current application to the brain used in research and clinical practice. We present the first comprehensive and technical review, explaining the evolution of tES in both terminology and dosage over the past 100 years of research to present day. Current transcranial Pulsed Current Stimulation (tPCS) approaches such as Cranial Electrotherapy Stimulation (CES) descended from Electrosleep (ES) through Cranial Electro-stimulation Therapy (CET), Transcerebral Electrotherapy (TCET), and NeuroElectric Therapy (NET) while others like Transcutaneous Cranial Electrical Stimulation (TCES) descended from Electroanesthesia (EA) through Limoge, and Interferential Stimulation. Prior …
Effect Of Ionic Liquid Electrolytes In Dsscs With Titanium Dioxide (Tio2) Inverse Opal Structures, Naomi S. Ramesar
Effect Of Ionic Liquid Electrolytes In Dsscs With Titanium Dioxide (Tio2) Inverse Opal Structures, Naomi S. Ramesar
Dissertations and Theses
Dye-sensitized solar cells (DSSC) are low-cost alternatives to conventional solar cells that can work well in low-light conditions. Despite considerable study on improving the efficiency of DSSCs, the current liquid electrolyte cell has plateaued at a conversion efficiency of ~ 12%. A major problem with these cells regarding their applicability is the low viscosity and high volatility of the toxic electrolyte, i.e., acetonitrile, which cause leakage and volatilization. We propose that using ionic liquids (ILs), which are more viscous, less volatile, and conductive, may be more suitable electrolytes. However, one unwanted side effect of the higher viscosity of the ILs …
Comparison Of Manufacturing Techniques For Composites Subjected To High Speed Impact, Kenneth Gollins
Comparison Of Manufacturing Techniques For Composites Subjected To High Speed Impact, Kenneth Gollins
Dissertations and Theses
No abstract provided.