Browsing Theses and Dissertations (MU) by Thesis Advisor "Almasri, Mahmoud"
Now showing items 1-13 of 13
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Amorphous silicon germanium oxide (Si[sub]xGe[sub]yO[sub]1-x-y) thin films for uncooled infrared microbolometer
(University of Missouri--Columbia, 2015) -
Controlled loading of cryoprotectants (CPAS) with cell volume constraints
(University of Missouri--ColumbiaUniversity of Missouri--Columbia, 2015)Oocyte cryopreservation techniques are considered very important aspects in biomedical research for oocyte and embryo cryopreservation to be used in future in In Vitro Fertilization (IVF) procedure. Oocyte cryopreservation ... -
Design and fabrication of one and two axis nickel electroplated micromirror array
(University of Missouri--Columbia, 2007)MEMS based micromirror devices are gaining importance at a steady pace in the applications related to optical communications and display technology. This research work describes the design, simulation and fabrication of a ... -
A MEMS based Coulter counter for cell sizing
(University of Missouri--Columbia, 2007)Detection and classification of cells forms an important aspect of medical research in diagnosing diseases and finding remedies at the cellular level. Miniaturized cell detecting devices are desirable not only for on site ... -
MEMS biosensor for detection of Escherichia coli O157:H7 in food products
(University of Missouri--Columbia, 2011)Escherichia coli O157:H7, is one of the most common pathogens that has caused several outbreaks in recent years. In 2010-11 there were 5 outbreaks of E.coli and thousands were victim of it. Thus there is an immediate need ... -
MEMS Coulter counter for dynamic impedance measurement of time sensitive cells
(University of Missouri--Columbia, 2011)In this research, a MEMS Coulter counter is designed, modeled, fabricated and characterized, which can detect and monitor the dynamic cell impedance changes in situ as a function of time and cellular volumetric changes ... -
MEMS energy harvesters with a wide bandwidth for low frequency vibrations
(University of Missouri--Columbia, 2015)We have designed and built macro-scale wideband electrostatic and electromagnetic power harvesters for low frequency vibration. Initially, MEMS capacitive plates for power harvesting have been designed, modeled and fabricated, ... -
MEMS impedance biosensor for accurate and rapid detection of E. coli O157:H7 in food products
(University of Missouri--Columbia, 2016)Escherichia coli O157:H7 is one of the public foodborne bacterial pathogens and results in severe illness such as diarrhea, urinary tract infections, respiratory illness, and pneumonia. To ensure food safety and human ... -
MEMS parallel plate variable capacitor for energy harvesting
(University of Missouri--ColumbiaUniversity of Missouri--Columbia, 2015)In recent years, there is a dramatic increase in use of portable, wireless sensors and actuators which are widely powered by batteries. However, these batteries have drawbacks such as limited energy, requiring replacement, ... -
A mems variable capacitor with barium titanate (BaTiO3) dielectric layer for energy harvesting
(University of Missouri--Columbia, 2015)In the research, a MEMS variable capacitor for electrostatic energy harvester was developed. The device uses the undesirable environmental mechanical vibrations to power microelectronics and wireless sensors. Although the ... -
Micromachined PDMS elastic post arrays for studying vascular smooth muscle cells
(University of Missouri--Columbia, 2011)This thesis describes the design, modeling, fabrication and characterization of a micromachined array of high density 3-dimensional microposts (100×100) made of flexible material (silicone elastomers) for use to measure ... -
Noise optimization of amorphous SixGeyO1-x-y uncooled microbolometer
(University of Missouri--Columbia, 2014)A detailed investigation of reduction of low-frequency noise voltage power spectral density (PSD) of silicon germanium oxide (SixGeyO1-x-y) uncooled infrared (IR) microbolometers has been performed. The experimental methods ... -
Signal generation for ultra-wideband short-range radar system
(University of Missouri--Columbia, 2012)In this thesis work, an ultra-wideband signal generator circuitry is presented for the Ultra-wideband Short-range Radar Human ID System. Investigation is carried out towards various UWB pulse candidates for Ultra-wideband ...