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Full-Text Articles in Engineering
Pneumonia Radiograph Diagnosis Utilizing Deep Learning Network, Wesley O'Quinn
Pneumonia Radiograph Diagnosis Utilizing Deep Learning Network, Wesley O'Quinn
Honors College Theses
Pneumonia is a life-threatening respiratory disease caused by bacterial infection. The goal of this study is to develop an algorithm using Convolutional Neural Networks (CNNs) to detect visual signals for pneumonia in medical images and make a diagnosis. Although Pneumonia is prevalent, detection and diagnosis are challenging. The deep learning network AlexNet was utilized through transfer learning. A dataset consisting of 11,318 images was used for training, and a preliminary diagnosis accuracy of 72% was achieved.
An Area Based Fan Beam Projection Model, Richard E. Steele, Jiehua Zhu
An Area Based Fan Beam Projection Model, Richard E. Steele, Jiehua Zhu
Honors College Theses
Area based projection models for computed tomography mitigate raw data errors by treating X-Rays as beams, whereas traditional line based projection models treat an X-Ray like a line, thus generating significant error. In an existing area based fan beam projection model, a rotation matrix, Q, simulates the rotation of the emitter detector pair to reduce computational load, but this introduces approximations by using an approximated rotation matrix. We eliminate approximations by deriving an exact formula for the entries of Q. Using a rotation of axes and by considering the neighboring cells' contributions to the area, the result has formulations for …
Nanoparticle Penetration Of Respirator Masks At Construction Sites, Jefferson W. Doehling
Nanoparticle Penetration Of Respirator Masks At Construction Sites, Jefferson W. Doehling
Honors College Theses
This experimental investigation studies the effectiveness of N95 respirators at blocking particles between 11.5 and 154 nm in diameter during 4 different construction activities. It is well known that large amounts of dust and debris are generated during construction activities. New research has found that significantly more nanoparticles are generated during construction activities than previously thought. Consequently, the N95 respirators commonly worn to protect against these particles are only rated to block 95% particles larger than 0.3 microns in size. In this investigation, two respirator models were tested, a NIOSH TC-84A-0007 pleated N95 respirator and a NIOSH 42CFR84 foldable N95 …
Biomechanical Analysis Of Gait Kinetics Resulting From Use Of A Vacuum Socket On A Transtibial Prosthesis, Maria De Lourdes Ramos Gonzalez
Biomechanical Analysis Of Gait Kinetics Resulting From Use Of A Vacuum Socket On A Transtibial Prosthesis, Maria De Lourdes Ramos Gonzalez
Honors College Theses
The technology and design of lower limb prosthetics have evolved greatly since their introduction. The current study proposed to compare the effects of a conventional pin socket attachment and a vacuum socket attachment for a transtibial amputee. Whereas traditional measurements of gait utilize force plates and camera systems, this study made use of a small tri-axial load cell located at the base of the socket to measure the forces and moments exerted during a regular gait cycle. The hypothesis tested stated that a vacuum pump socket attachment, when compared to a non-vacuum (pin) socket, will have a significant effect on …
The Design And Testing Of A Solar Autoclave With Broad Spectrum Sterilization Capabilities, Sarah S. Trabia
The Design And Testing Of A Solar Autoclave With Broad Spectrum Sterilization Capabilities, Sarah S. Trabia
Honors College Theses
Energy is difficult to come by in developing countries and this interferes with the ability of doctors to provide good healthcare to their patients. Without decent sterilization, patients can become infected and diseases can spread throughout hospitals. This study involves designing a solar autoclave for developing countries that is as efficient as electrical autoclaves. The design is intended to not require any electrical input and to be affordable to those who cannot afford advanced medical equipment. Once the solar autoclave is designed, it will be tested to determine if it can sterilize equipment against a variety of different bacteria, including …