Hassanipour, Fatemeh

Permanent URI for this collectionhttps://hdl.handle.net/10735.1/7315

Fatemeh Hassanipour is an Associate Professor of Mechanical Engineering and an affiliated faculty member in the Department of Bioengineering. She also serves as the Director of the Advanced Research on Thermofluid Systems (ARTS) Laboratory. Her research interests are applications of Heat transfer and Fluid mechanics including:

  • Energy Conservation, Storage, and Management
  • Electronic Cooling
  • Health
  • Modeling and Simulation of Biomechanical Systems

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Now showing 1 - 3 of 3
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    A Clinical Experiment on Infant Applied Pressures During Breastfeeding
    (Amer Soc Mechanical Engineers, 2019) Jiang, Lin; Alatalo, Diana L.; Geddes, Donna T.; Hassanipour, Fatemeh; 0000-0003-0337-1192 (Hassanipour, F); Jiang, Lin; Alatalo, Diana L.; Hassanipour, Fatemeh
    Breastfeeding provides both nutrients and immunities necessary for infant growth. Understanding the biomechanics of breastfeeding requires capturing both positive and negative pressures exerted by infants on the breast. This clinical experimental work utilizes thin, flexible pressure sensors to capture the positive oral pressures of 7 mother-infant dyads during breastfeeding while simultaneously measuring vacuum pressures and imaging of the infants oral cavity movement via ultrasound. Methods for denoising signals and evaluating ultrasound images are discussed. Changes and deformations on the nipple are evaluated. The results reveal that pressure from the infant's maxilla and mandible are evenly distributed in an oscillatory pattern corresponding to the vacuum pressure patterns. Variations in nipple dimensions are considerably smaller than variations in either pressure but the ultrasound shows positive pressure dominates structural changes during breastfeeding. Clinical implications for infant-led milk expression and data processing are discussed.
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    Nipple Deformation and Peripheral Pressure on the Areola During Breastfeeding
    (Amer Soc Mechanical Engineers, 2019-10-01) Jiang, Lin; Alatalo, Diana L.; Geddes, Donna T.; Hassanipour, Fatemeh; 0000-0003-0337-1192 (Hassanipour, F); Jiang, Lin; Alatalo, Diana L.; Hassanipour, Fatemeh
    Breastfeeding is a complex process where the infant utilizes two forms of pressure during suckling, vacuum and compression. Infant applied compression, or positive oral pressure, to the breast has not been previously studied in vivo. The goal of this study is to use a methodology to capture the positive oral pressure values exerted by infants' maxilla (upper jaw) and mandible (lower jaw) on the breast areola during breastfeeding. In this study, the positive and negative (vacuum) pressure values are obtained simultaneously on six lactating mothers. Parallel to the pressure data measurements, ultrasound images are captured and processed to reveal the nipple deformations and the displacements of infants' tongues and jaw movements during breastfeeding. Motivated by the significant differences in composition between the tissue of the breast and the nipple–areola complex, the strain ratio values of the lactating nipples are obtained using these deformation measurements along with pre- and postfeed three-dimensional (3D) scans of the breast. The findings show an oscillatory positive pressure profile on the breast under both maxilla and mandible, which differs from clinical indications that only the mandible of an infant moves during breastfeeding. The strain ratio varies between mothers, which indicates volume changes in the nipple during feeding and suggests that previous assumptions regarding strain ratio for nonlactating breasts will not accurately apply to breast tissue during lactation.
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    Thermal Fluid Analysis of Cold Plasma Methane Reformer
    (MDPI AG, 2018-05-01) Sobhansarbandi, S.; Maharjan, Lizon; Fahimi, Babak; Hassanipour, Fatemeh; Maharjan, Lizon; Fahimi, Babak; Hassanipour, Fatemeh
    One of the most important methods of methane utilization is the conversion to synthesis gas (syngas). However, conventional ways of reforming methane usually require very high temperature, therefore non-thermal (non-equilibrium) plasma methane reforming is an attractive alternative. In this study, a novel plasma based reformer named 3D Gliding Arc Vortex Reformer (3D-GAVR) was investigated for partial oxidation of methane to produce syngas. The tangential input creates a vortex in the plasma zone and an expanded plasma presides within the entire area between the two electrodes. Using this method, the experimental results show that hydrogen can be produced for as low as $4.45 per kg with flow rates of around 1 L per minute. The maximum methane conversion percentage which is achieved by this technology is up to 62.38%. In addition, a computational fluid dynamics (CFD) modeling is conducted for a cold plasma reformer chamber named reverse vortex flow gliding arc reactor (RVF-GA) to investigate the effects of geometry and configuration on the reformer performance. In this modified reformer, an axial air input port is added to the top of the reaction vessel while the premixed reactants can enter the cylindrical reaction zone through tangential jets. The CFD results show that a reverse vortex flow (RVF) scheme can be created which has an outer swirling rotation along with a low pressure area at its center with some component of axial flow. The reversed vortex flow utilizes the uniform temperature and heat flux distribution inside the cylinder, and enhances the gas mixtures leading to expedition of the chemical reaction and the rate of hydrogen production. ©2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.

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