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Digitization And Fabrication Of Custom Surface Topographies With Submicron Resolution, Mahyar Afsher Mohajer, Josue A. Goss, Dipankar Choudhury, Min Zou, Shelby R. Maddox

Patents Granted

The present invention relates generally to methods of fabricating surface topography based on a scanned surface topography. The method converts 3D scanned surface topography data that have submicron resolution to digital formats that can be stored, manipulated, or tiled, and used as an input for replicating the surface topography with submicron resolution on another substrate. The digitized surface topography data is then converted to input for 1) 3D printing to replicate the scanned surface topography with submicron resolution, with or without a subsequent coating layer or layers to impart additional properties and/or features, 2) 3D printing a master that replicates …

Detection Of Nucleotides In Hydrated Ssdna Via 2-D H-Bn Nanopore With Ionic-Liquid/Salt-Water Interface, Jungsoo Lee

Multidisciplinary Studies Theses and Dissertations

Accomplishing slow translocation speed with high sensitivity has been the greatest mission for solid-state nanopore (SSN) to electrically detect nucleobases in single-stranded DNA (ssDNA). In this study, a method to detect nucleobases in ssDNA using a SSN is introduced by considerably slowing down the translocation speed and effectively increasing its sensitivity. The ultra-thin titanium dioxide (TiO₂) coated hexagonal boron nitride (h-BN) nanopore was fabricated, along with an ionic-liquid [bmim][PF₆]/2.0 M KCl aqueous (cis/trans) interfacial system, to increase both the spatial and the temporal resolutions. As the ssDNA molecules entered the nanopore, a …

Advanced Thermal Characterization And Temperature Control To Enable The Next Generation Of Micro-Electronic Technologies, Assaad El Helou

Mechanical Engineering Research Theses and Dissertations

In the electronics world, self-heating is an inevitable by-product of electrical activation that has a major impact on device performance and reliability. Thermal technologies have been in constant development to effectively dissipate the generated heat and keep device operation temperatures within reliable limits. Moreover, thermal characterization technologies have been implemented to understand the thermal performance within microelectronic sys- tems, but not without facing experimental and numerical challenges. This work presents ad- vanced thermal investigations, both experimental and numerical, that are adapted and most suited for emerging micro-electronic technologies. Initially, the main experimental and numerical modeling challenges faced in the thermal …

Microparticle Propulsion For In Vivo Navigation, Louis Rogowski

Mechanical Engineering Research Theses and Dissertations

Microscale propulsion impacts a diverse array of fields, with simplistic microrobots allowing for novel innovations in microscale surgery and drug delivery. Propulsion at the microscale is constrained by physics, with time-reversal and geometric symmetries limiting available propulsion mechanisms. However, certain fluid environments and surface coatings allow for the propulsion of microparticles through externally applied magnetic fields. Presented here is a detailed analysis of microparticles propelling using spontaneous symmetry breaking, flagella surface coatings, and multi-modal actuation mechanisms. Spontaneous symmetry breaking in nonlinearly viscoelastic fluids is presented for the first time in literature, with two equal and opposite propulsion states existing along …

Newsroom, Georgia Southern University

Newsroom

• Mechanical engineering graduate is ready for duty
• Georgia Southern professor receives University System of Georgia Hall of Fame Faculty Award

Mechanical Engineering News, Georgia Southern University

Mechanical Engineering News (2013-2023)

• Engineering Design Conference Held Virtually

Aerosol Jet Printed Capacitive Strain Gauge For Soft Structural Materials, Kiyo T. Fujimoto, Jennifer K. Watkins, Timothy Phero, Takoda Bingham, Kshama Lakshmi Ranganatha, Benjamin C. Johnson, Zhangxian Deng, Brian Jaques, David Estrada

Materials Science and Engineering Faculty Publications and Presentations

Soft structural textiles, or softgoods, are used within the space industry for inflatable habitats, parachutes and decelerator systems. Evaluating the safety and structural integrity of these systems occurs through structural health monitoring systems (SHM), which integrate non-invasive/non-destructive testing methods to detect, diagnose, and locate damage. Strain/load monitoring of these systems is limited while utilizing traditional strain gauges as these gauges are typically stiff, operate at low temperatures, and fail when subjected to high strain that is a result of high loading classifying them as unsuitable for SHM of soft structural textiles. For this work, a capacitance based strain gauge (CSG) …

High-Performance Flexible Bismuth Telluride Thin Film From Solution Processed Colloidal Nanoplates, Madhusudan Kongara, Tony Varghese, Karthik Chinnathambi, Jesse Schimpf, Josh Eixenberger, Paul H. Davis, Yaqiao Wu, David Estrada

Materials Science and Engineering Faculty Publications and Presentations

Thermoelectric generators are an environmentally friendly and reliable solid‐state energy conversion technology. Flexible and low‐cost thermoelectric generators are especially suited to power flexible electronics and sensors using body heat or other ambient heat sources. Bismuth telluride (Bi₂Te₃) based thermoelectric materials exhibit their best performance near room temperature making them an ideal candidate to power wearable electronics and sensors using body heat. In this report, Bi₂Te₃ thin films are deposited on a flexible polyimide substrate using low‐cost and scalable manufacturing methods. The synthesized Bi₂Te₃ nanocrystals have a thickness of 35 ± …

Modeling, Simulation, And Testing Of Sweeping Convection, Amir Kiaee

Mechanical Engineering Research Theses and Dissertations

In this study, the new convection heat transfer concept of sweeping convection, using large particles flowing with a fluid in a channel, is considered. This novel concept is inspired by the gas exchange process in alveolar capillaries, where red blood cells (RBCs) flow with blood plasma, yielding very high gas transfer efficiency. An important characteristic of alveolar capillary blood flow, believed to be related to the high efficiency of the lungs, is the snug fitting of the RBCs into the capillaries. This tight fitting sets the RBCs (particles) acting like pistons as they flow downstream with the plasma (fluid), facilitating …

Me 311-101: Thermodynamics I, Abdul Ali

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 407-001: Heat Transfer, Alexandre Ermoline

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 315-001: Stress Analysis, Kwabena Narh

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 405-103: Mechanical Lab Ii, Alexandre Ermoline

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 315-101: Stress Analysis, Kwabena Narh

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 405-005: Mechanical Lab Ii, Veljko Samardzic

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 231-003: Kinematics Of Machinery, Anthony Glick

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 315-003: Stress Analysis, Anhony Glick

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 315-005: Stress Analysis, Anhony Glick

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 343-005: Mechanical Laboratory I, Balraj Mani

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 343-003: Mechanical Laboratory I, Chao Zhu

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 406-001: Mechanical Laboratory Iii, Balraj Mani

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 632-101: Mechincal Engineering Measurements, Chao Zhu

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 311-001: Thermodynamics I, Dibakar Datta

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 406-005: Mechanical Laboratory Iii, Eon Shoo Lee

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 304-101: Fluid Mechanics, Yavich Dmitry

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 620-001: Mechanics Of Materials, Fatemeh Ahmadpoor

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 403-001: Mechanical Systems Design I, Harry Kountouras

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 312-103: Thermodynamics, Harry Kountouras

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 403-101: Mechanical Systems Design I, Harry Kountouras

Mechanical and Industrial Engineering Syllabi

No abstract provided.

Me 403-005: Mechanical Systems Design I, Harry Kountouras

Mechanical and Industrial Engineering Syllabi

No abstract provided.