Now showing items 21-30 of 36
Advances in Quantitative MRI: Acquisition, Estimation, and Application
(2018)
Quantitative magnetic resonance imaging (QMRI) produces images of potential MR biomarkers: measurable tissue properties related to physiological processes that characterize the onset and progression of specific disorders. ...
New Methods for Terahertz and Ultrafast Infrared Spectroscopy of Biological Materials and Graphene Buffer Layer
(2019)
The development of advanced optical spectroscopy has always been a frontier in optics and material science. This dissertation develops several new methods for terahertz (THz) and infrared spectroscopy and presents their ...
Implantable Low-Noise Fiberless Optoelectrodes for Optogenetic Control of Distinct Neural Populations
(2017)
The mammalian brain is often compared to an electrical circuit, and its dynamics and function are governed by communication across different types neurons. To treat neurological disorders like Alzheimer’s and Parkinson’s, ...
Retroactivity to the Output of Transcription Devices: Quantification and Insulation.
(2012)
Traditional engineering often relies on hierarchical design techniques to build com-
plex systems from simpler subsystems. This technique requires modularity, a prop-
erty that states that the input/output characteristics ...
Task-Invariant Control and Pre-clinical Validation of Partial Assist Exoskeletons
(2023)
A transition from powerful, bulky, and stiff jointed exoskeletons for driving the limbs of paralyzed individuals to lightweight, highly backdrivable, partial assist exoskeletons for assisting broad populations with mild ...
In vivo Electrochemical Sensors.
(2010)
Analyzing the brain’s extracellular chemical environment has the potential to provide significant insight into neurotransmission, pharmacology, and behavior providing insight into memory, thought, and disorders such as ...
Fiber-Optic Multiphoton Fluorescence Spectroscopy for Biosensing and In Vivo Fiber-Optic Multiphoton Fluorescence Spectroscopy for Biosensing and In Vivo Flow Cytometry.
(2009)
There is considerable interest in developing real-time diagnostic tools to detect disease signatures and therapeutic responses in vivo; however, tissue scattering and absorption limit the capability of traditional optical ...
Wireless Magnetoelastic Monitoring of Biliary Stents.
(2009)
This thesis describes a wireless magnetoelastic system for monitoring the mass accumulation and viscosity changes that accompany the progressive occlusion of biliary stents. The system comprises four components: a biliary ...
Ultrasonic Batch Mode Micromachining and its Application to Piezoelectric Sensors for Fine Needle Aspiration Biopsy. Sensors for Fine Needle Aspiration Biopsy.
(2009)
The development of micro-electro-mechanical systems (MEMS) is constrained by the range of materials that can be processed lithographically. Bulk ceramics (including piezoceramics) are of particular interest due to unique ...
Computer-aided Diagnosis of Pulmonary Nodules in Thoracic Computed Tomography.
(2008)
Lung cancer is the leading cause of cancer death in the United States. The five-year survival rate is 15% because most patients present with advanced disease. If lung cancer is detected and treated at its earliest stage, ...