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Biomedical Engineering and Bioengineering Commons

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Articles 1 - 8 of 8

Full-Text Articles in Biomedical Engineering and Bioengineering

Multiparametric Tissue Characterization Of Brain Neoplasms And Their Recurrence Using Pattern Classification Of Mr Images, Raginia Verma, Evangelia I. Zacharaki, Yangming Ou, Hongmin Cai, Sanjeev Chawla, Seung-Koo Lee, Elias R. Melhem, Ronald Wolf, Christos Davatzikos Aug 2008

Multiparametric Tissue Characterization Of Brain Neoplasms And Their Recurrence Using Pattern Classification Of Mr Images, Raginia Verma, Evangelia I. Zacharaki, Yangming Ou, Hongmin Cai, Sanjeev Chawla, Seung-Koo Lee, Elias R. Melhem, Ronald Wolf, Christos Davatzikos

Departmental Papers (BE)

Rationale and Objectives:

Treatment of brain neoplasms can greatly benefit from better delineation of bulk neoplasm boundary and the extent and degree of more subtle neoplastic infiltration. MRI is the primary imaging modality for evaluation before and after therapy, typically combining conventional sequences with more advanced techniques like perfusion-weighted imaging and diffusion tensor imaging (DTI). The purpose of this study is to quantify the multi-parametric imaging profile of neoplasms by integrating structural MRI and DTI via statistical image analysis methods, in order to potentially capture complex and subtle tissue characteristics that are not obvious from any individual image or parameter ...


Poly(Ethylenedioxythiophene) Based Electronic Devices For Sensor Applications, Jie Liu Jul 2008

Poly(Ethylenedioxythiophene) Based Electronic Devices For Sensor Applications, Jie Liu

Doctoral Dissertations

Organic electronic devices, based on Poly (3,4-ethylenedioxythiophene)-Poly (styrene sulfonic acid) (PEDOT-PSS) as the active layer for sensor applications, have been studied. Two sets of sensors have been developed. In one case, sensors consisting of PEDOT-PSS resistors have been realized and demonstrated for soil moisture monitoring. The resistor model for the soil moisture sensor enables the sensor device to be fabricated at low cost and easily tested with a simple structure. Unlike the large dimension device used in Time Domain Reflectometry (TDR), the sensors are small and are capable of capturing microscale behavior of moisture in soil which is ...


Lend Me Your Arms: The Use And Implications Of Humancentric Rfid, Amelia Masters, Katina Michael May 2008

Lend Me Your Arms: The Use And Implications Of Humancentric Rfid, Amelia Masters, Katina Michael

Professor Katina Michael

Recent developments in the area of RFID have seen the technology expand from its role in industrial and animal tagging applications, to being implantable in humans. With a gap in literature identified between current technological development and future humancentric possibility, little has been previously known about the nature of contemporary humancentric applications. By employing usability context analyses in control, convenience and care-related application areas, we begin to piece together a cohesive view of the current development state of humancentric RFID, as detached from predictive conjecture. This is supplemented by an understanding of the market-based, social and ethical concerns which plague ...


Writing Research Proposal: Literature Review And Database Search, Mamoudou H. Dicko Prof. May 2008

Writing Research Proposal: Literature Review And Database Search, Mamoudou H. Dicko Prof.

Pr. Mamoudou H. DICKO, PhD

The maiden proposed research project should demonstrate that the present study will add a significant knowledge on the subject. The main objective of the literature research is to allow that the statement of the research need will clearly establish the objective of the new study.


Aquatic Bacteria Removal Using Carbon Nanotubes, Suvish Melanta May 2008

Aquatic Bacteria Removal Using Carbon Nanotubes, Suvish Melanta

Biological and Agricultural Engineering Undergraduate Honors Theses

The purpose of this project is to explore the functionality of carbon nanotubes as a bacterial removal method, specifically towards water-borne bacterial pathogens in wastewater by utilizing its unique magnetic and bacteria-binding properties. The general protocol set for this research follows five steps: 1) Preparation of wastewater media, 2) preparation of CNT culture, 3) preparation of reaction mixture with CNTs for bacterial binding, 4) magnetic separation of bacteria-bound-CNT clusters and, 5) assessment of supernatant. The CNTs effectively removed bacterial contaminants in the wastewater (10%, v/v) after the sand filtration process from the Paul R. Noland Wastewater Facility at Fayetteville ...


Caffeine Model Identification For Vigilance Performance Prediction, Chun-Hui Huang Apr 2008

Caffeine Model Identification For Vigilance Performance Prediction, Chun-Hui Huang

Mechanical & Aerospace Engineering Theses & Dissertations

The pharmacodynamics and pharmacokinetics of caffeine have been well characterized. In this study, a caffeine dynamic model is developed to describe its pharmacodynamic effects on vigilance performance. Validated biomathematical models developed to address both individual and group fatigue and alertness in a non-laboratory setting represent a tremendous commercial opportunity. First, a test data set with caffeine effects isolated from circadian and homeostatic effects is created. Then a modeling approach for input and output effects is developed and different model structures for the caffeine effects are considered. Observer/Kalman filter Identification (OKID) algorithm is proposed and developed to identify the caffeine ...


Real-Time Ultrasound Simulation For Medical Training And Standardized Patient Assessment, Bo Sun Apr 2008

Real-Time Ultrasound Simulation For Medical Training And Standardized Patient Assessment, Bo Sun

Computational Modeling and Simulation Engineering Theses & Dissertations

With the increasing role played by ultrasound in clinical diagnostics, ultrasound training in medical education has become more and more important. The clinical routine for ultrasound training is on real patients; therefore monitored and guided examinations involving medical students are quite time-constrained. Furthermore, standardized patients (SPs), who are increasingly used in medical school for teaching and assessing medical students, need to be augmented. These SPs are typically healthy individuals who can not accurately portray the variety of abnormalities that are needed for training especially when medical examinations involve instrument interactions. To augment SPs in a realistically effective way and also ...


Electrospun Nanofibres And Their Applications, Ji-Huan He, Yong Liu, Lu-Feng Mo, Yu-Qin Wan, Lan Xu Jan 2008

Electrospun Nanofibres And Their Applications, Ji-Huan He, Yong Liu, Lu-Feng Mo, Yu-Qin Wan, Lan Xu

Ji-Huan He

This Update covers all aspects of electrospinning as used to produce Nanofibres. It contains an array of colour diagrams, mathematical models, equations and detailed references. It will be invaluable to anyone who is interested in using this technique and also to those interested in finding out more about the subject. Electrospinning is the cheapest and the most straightforward way to produce nanomaterials. Electrospun Nanofibres are very important for the scientific and economic revival of developing countries. Electrospinning was developed from electrostatic spraying and now represents an attractive approach for polymer biomaterials processing, with the opportunity for control over morphology, porosity ...