Now showing items 1-10 of 32
Simultaneous Multislice Functional Magnetic Resonance Imaging.
(2016)
Functional magnetic resonance imaging (fMRI) is a valuable tool for mapping brain activity in many fields. Since functional activity is determined by temporal signal changes, undesired fluctuations from physiological motion ...
Intracortical Neural Probes with Post-Implant Self-Deployed Electrodes for Improved Chronic Stability.
(2015)
This thesis presents a new class of implantable intracortical neural probe with small recording electrodes that deploy away from a larger main shank after insertion. This concept is hypothesized to enhance the performance ...
Advances in Concurrent Motion and Field-Inhomogeneity Correction in Functional MRI.
(2008)
Head motion and static magnetic field (B0) inhomogeneity are two important sources of image intensity variability in functional MRI (fMRI). Ideally, in MRI, any deviation in B0 homogeneity in an object occurs only by design. ...
Development of Highly Sensitive and Selective Optical and Electrical Sensors for Micro-Gas Chromatography.
(2013)
Gas chromatography (GC) is a powerful tool in the analysis of volatile organic compound (VOC) mixtures. It has found applications in healthcare, industrial safety, homeland security, and environmental studies. However to ...
Improving Statistical Image Reconstruction for Cardiac X-ray Computed Tomography.
(2014)
Technological advances in CT imaging pose new challenges such as increased X-ray radiation dose and complexity of image reconstruction. Statistical image reconstruction methods use realistic models that incorporate the ...
A Low-Power Wireless Multichannel Microsystem for Reliable Neural Recording.
(2012)
This thesis reports on the development of a reliable, single-chip, multichannel wireless biotelemetry microsystem intended for extracellular neural recording from awake, mobile, and small animal models. The inherently ...
A Three-Dimensional Bidirectional Interface for Neural Mapping Studies
(2010)
Advances in neuro-medicine depend critically on supporting technologies, including those associated with penetrating microelectrodes. While these have developed from single-site microwires to three-dimensional micromachined ...
Design and Optimization of Power Supplies for Wireless Integrated Microsystems.
(2008)
In this work, we developed a novel power supply for the WIMS-ERC intraocular sensor (WIMS-IOS), an autonomous and implantable system. This device is representative of a broad class of microscale devices, whose full ...
High Resolution Lithography-Compatible Micro-Electro-Discharge Machining of Bulk Metal Foils for Micro-Electro-Mechanical Systems.
(2009)
The application of batch mode micro-electro-discharge machining (µEDM) to the fabrication of micro-electro-mechanical systems has opened the door to lithographically compatible precision machining of all bulk metals. High ...
Advancement of Micro Gas Chromatographs and Their Core Components
(2021)
The development of portable vapor sensors is of high interest for in situ and real-time chemical analysis. These sensors are targeted at industrial and environmental monitoring as well as point-of-care applications. Advances ...