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Articles 1 - 6 of 6
Full-Text Articles in Mechanical Engineering
Understanding The Interaction Between Blood Flow And An Applied Magnetic Field, Francy L. Sinatra
Understanding The Interaction Between Blood Flow And An Applied Magnetic Field, Francy L. Sinatra
USF Tampa Graduate Theses and Dissertations
Hemodynamic monitoring is extremely important in the accurate measurement of vital parameters. Current methods are highly invasive or noncontinuous, and require direct access to the patient’s skin. This study intends to explore the modulated magnetic signature of blood method (MMSB) to attain blood flow information. This method uses an applied magnetic field to magnetize the iron in the red blood cells and measures the disturbance to the field with a magnetic sensor [1]. Exploration will be done by experimentally studying in-vitro, as well as simulating in COMSOL the alteration of magnetic fields induced by the flow of a magnetic solution. …
Design And Fabrication Of A Membrane Integrated Microfluidic Cell Culture Device Suitable For High-Resolution Imaging, Alla A. Epshteyn
Design And Fabrication Of A Membrane Integrated Microfluidic Cell Culture Device Suitable For High-Resolution Imaging, Alla A. Epshteyn
USF Tampa Graduate Theses and Dissertations
Malaria remains a serious concern for people living and traveling to warm climates in Africa, Asia, and some parts of America. Understanding the mechanism of the malaria parasite in the liver phase could lead to important discoveries for preventative and treatment therapeutics before the disease develops into the blood stage. While in vitro liver cell culture models have been explored, a device that mimics the liver cell architecture with the capability of high-resolution imaging has never been created. In this research, a cell culture microfluidic device was designed and fabricated with a membrane integrated design to mimic the architecture of …
Continuous Electrowetting Actuation Utilizing Current Rectification Properties Of Valve Metal Films, Corey M. Lynch
Continuous Electrowetting Actuation Utilizing Current Rectification Properties Of Valve Metal Films, Corey M. Lynch
USF Tampa Graduate Theses and Dissertations
Electrowetting on dielectric (EWOD) is a technique for reducing the apparent contact angle of a fluid droplet, which has many promising applications in the fields of optics, digital displays, and lab-on-a-chip research. In this thesis, a design is presented for a novel single circuit device for achieving continuous droplet motion, by using the current-rectifying properties of valve metals to create diode-like behavior. This contrasts with existing designs, which require an array of individual electrodes to achieve motion in discrete steps. We are able to demonstrate continuous droplet motion across a 28mm-long test strip with an applied voltage of 303 V …
Exploring The Human Interactivity With A Robot To Obtain The Fundamental Properties Of Materials, William L. Christian
Exploring The Human Interactivity With A Robot To Obtain The Fundamental Properties Of Materials, William L. Christian
USF Tampa Graduate Theses and Dissertations
This research studies the way in which humans and robots interact with each other. When two humans are working together through a set of robotic devices, do they tend to work together or fight with each other more? In which Cartesian direction do they have the most difficulty? Does fighting drastically affect the performance of the team? Finally, what measures can be taken to promote better cooperation between humans and robots to ultimately allow humans to work just as comfortably with a robotic partner as with a human partner? This research answers these questions and provides an analysis of human-robot …
Gold Nanoparticles And Their Polymer Composites: Synthesis Characterization And Applications, Nidhi Joshi
Gold Nanoparticles And Their Polymer Composites: Synthesis Characterization And Applications, Nidhi Joshi
USF Tampa Graduate Theses and Dissertations
Gold nanoparticles are excellent candidates for all the biomedical applications due to their size and shape dependent optical and physiological properties. In this study, gold nanoparticles were synthesized chemically for bio-application. It was observed that the size and shape of gold nanoparticles depend strongly on the concentration of chemical solution, type of reducing agent used in the reaction, temperature of the solution and stabilizing agent for reaction. Transmission electron microscopy (TEM) has been used extensively to determine the size and shape of the gold nanoparticles. Optical properties of the size and shape selected nanoparticles were studied using UV-vis spectrophotometer in …
Shape And Pose Recovery Of Novel Objects Using Three Images From A Monocular Camera In An Eye-In-Hand Configuration, Steven C. Colbert
Shape And Pose Recovery Of Novel Objects Using Three Images From A Monocular Camera In An Eye-In-Hand Configuration, Steven C. Colbert
USF Tampa Graduate Theses and Dissertations
Knowing the shape and pose of objects of interest is critical information when planning robotic grasping and manipulation maneuvers. The ability to recover this information from objects for which the system has no prior knowledge is a valuable behavior for an autonomous or semiautonomous robot. This work develops and presents an algorithm for the shape and pose recovery of unknown objects using no a priori information. Using a monocular camera in an eye-in-hand configuration, three images of the object of interest are captured from three disparate viewing directions. Machine vision techniques are employed to process these images into silhouettes. The …