Mechanical Engineering Commons^™

Evaluation Of The Use Of High Frequency Acoustic Cavitation To Improve Water Quality In Commercial Catfish Operations, Bennett Elizabeth Barr

Honors Theses

Catfish processing plants must chill the water used for their fillet wash and flush and refill their piping systems frequently, requiring a pause in operations until the piping flush is complete. There is a need for a (preferably non-chemical) solution that enables the plants to chill the water less and flush their systems less often to mitigate high energy and water consumption. High amplitude acoustic waves (sonication) were introduced into water samples from catfish ponds to determine if they could be used as a replacement for chemical treatments to improve the water quality in the plant piping systems. Preliminary tests …

Modeling Radionuclide Diffusion Using Moose A Multiscale, Multiphysics Platform, Jonathon Gardner

Theses and Dissertations

Very durable ceramic waste forms have been proposed which offer longterm stability by binding certain radionuclides in their specific crystalline network. Moreover, multiple such ceramic phases can be tailored to contain specific radionuclides generated in the fuel cycle. Many such candidate ceramic forms are in the early stages of development with limited data. Modeling and simulation including modeling of diffusion can inform and provide direction to ongoing fabrication and experimental efforts. Material properties important in modeling can be obtained through laboratory measurement where available and atomistic simulation. Since diffusion occurs over multiple scales and follows multiple pathways, multiscale modeling is …

Detection Of Periodic Error And Structure Change Using Wavelet Analysis, Chao Lu

Theses and Dissertations

Heterodyne displacement measuring interferometry provides important metrology for applications requiring high resolution and accuracy. Heterodyne Michelson interferometers use a two-frequency laser source and separate the two optical frequencies into one fixed length and one variable length path via polarization. Ideally these two beams are linearly polarized and orthogonal so that only one frequency is directed toward each path. An interference signal is obtained by recombining the light from the two paths; this results in a measurement signal at the heterodyne (split) frequency of the laser source. This measurement signal is compared to the optical reference signal. Motion in the measurement …

Test 2145: John Deere 6135e, Nebraska Tractor Test Lab

Nebraska Tractor Tests

ABOUT THE TEST REPORT AND USE OF THE DATA The test data contained in this report are a tabulation of the results of a series of tests. Due to the restricted format of these pages, only a limited amount of data and not all of the tractor specifications are included. The full OECD report contains usually about 30 pages of data and specifications. The test data were obtained for each tractor under similar conditions and therefore, provide a means of comparison of performance based on a limited set of reported data. EXPLANATION OF THE TEST PROCEDURES Purpose The purpose of …

Backward Dijkstra Algorithms For Finding The Departure Time Based On The Specified Arrival Time For Real-Life Time-Dependent Networks, Gelareh Bakhtyar, Vi Nguyen, Mecit Cetin, Duc Nguyen

Civil & Environmental Engineering Faculty Publications

A practical transportation problem for finding the “departure” time at “all source nodes” in order to arrive at “some destination nodes” at specified time for both FIFO (i.e., First In First Out) and Non-FIFO “Dynamic ” Networks is considered in this study. Although shortest path (SP) for dynamic networks have been studied/documented by various researchers, contributions from this present work consists of a sparse matrix storage scheme for efficiently storing large scale sparse network’s connectivity, a concept of Time Delay Factor (TDF) combining with a “general piece- wise linear function” to describe the link cost as a function of time …

Production Of Β-Silicon Carbide Nanofibers Using The Forcespinning® Method, Alfonso Salinas, Aleksey Altecor, Maricela Lizcano, Karen Lozano

Mechanical Engineering Faculty Publications

Silicon carbide (SiC) nanofibers were produced on a large scale using the Forcespinning® method. Non-oxide ceramics such as SiC are known for their low density, oxidation resistance, thermal stability, and wear resistance. The nanofibers were prepared using a solution-based method with polystyrene and polycarbomethylsilane as the precursor materials. Fiber spinning was performed under different parameters to obtain high yield, fiber homogeneity, and small diameters. The fibers were spun under a controlled nitrogen environment to prevent fiber oxidation. The resultant nonwoven nanofiber mats were then subjected to different heat treatments to evaluate the effect of these on the crystalline structure. Characterization …

Knee Internal Forces In Moderate Squat Exercise, Dumitru I. Caruntu, Jose Mario Salinas

Mechanical Engineering Faculty Publications

This paper deals with internal forces of human knee during moderate squat exercise. The moderate squat exercise consists of a descending phase from standing to the lowest position (largest flexion angle) in which no significant contact between thigh and calf occurs, and an ascending phase back to standing position. This research predicts the internal forces such as muscle forces, contact forces, and ligamentous forces. The ligamentous structures in this research consist of Anterior Cruciate Ligament (ACL), Posterior Cruciate Ligament (PCL), Lateral Collateral Ligament (LCL), and Medial Collateral Ligament (MCL). The ligaments are modeled as nonlinear elastic strips (they do not …

Assessing Postural Stability Via The Correlation Patterns Of Vertical Ground Reaction Force Components, Chih-Yuan Hong, Lan-Yuen Guo, Rong Song, Mark L. Nagurka, Jia-Li Sung, Chen-Wen Yen

Mechanical Engineering Faculty Research and Publications

Background

Many methods have been proposed to assess the stability of human postural balance by using a force plate. While most of these approaches characterize postural stability by extracting features from the trajectory of the center of pressure (COP), this work develops stability measures derived from components of the ground reaction force (GRF).

Methods

In comparison with previous GRF-based approaches that extract stability features from the GRF resultant force, this study proposes three feature sets derived from the correlation patterns among the vertical GRF (VGRF) components. The first and second feature sets quantitatively assess the strength and changing speed of …

Proceedings Of The 16th Annual Early Career Technical Conference (Front Matter), Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. i-xi

Section 1: Bio-Medical/Bioengineering, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 1-30

Section 3: Materials, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 63-94

Section 2: Design & Manufacturing, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 31-62

Section 4: Materials, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 95-124

Section 5: Miscelleneous, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 125-152

Respiratory Airflow Characteristics In Obstructed Small Airways, Jongwon Kim, Ramana Pidaparti

Early Career Technical Journal (ECTJ)

Section 1: Bio-Medical/Bioengineering; pp. 3-8

Section 6: Thermal Sciences, Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama; pp. 153-174

Dynamical Response Of Alveolar Sac Due To Different Breathing Condition: A Mechanical Model, Tarin Singhapakdi, Israr B M Ibrahim, Ramana Pidaparti

Early Career Technical Journal (ECTJ)

Section 1: Bio-Medical/Bioengineering; pp. 9-14

Proceedings Of The 16th Annual Early Career Technical Conference (Complete Issue), Ectc Coordinating Committee

Early Career Technical Journal (ECTJ)

Proceedings of the 16th Annual Early Career Technical Conference, November 5, 2016. School of Engineering, University of Alabama at Birmingham, Birmingham, Alabama

A Subject-Variability Study Of Airflow Transport For Three Human Lung-Airway Configurations, Yu Feng, Clement Kleinstreuer

Early Career Technical Journal (ECTJ)

Section 1: Bio-Medical/Bioengineering; pp. 22-29

Tractor Power Hop: Wheel Normal Reaction Analysis, Siyuan Hunter Zhang, Vladimir Vantsevich

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 38-41

Design Of A Balance Sensing System For People With Physical Disabilities Using Velostat, John M. Hoyle, Alan W. Eberhardt

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 50-55

Viscosity And Morphology Modification Of Length Sorted Single Walled Carbon Nanotubes In Pib Matrices, Hanxiao Huang, Bohoa Li, Daneesh Simien

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 42-49

Design And Analysis Of A Long-Endurance Humanitarian Uav, Ali Darwish, Arie Nakhmani

Early Career Technical Journal (ECTJ)

Section 2: Design & Manufacturing; pp. 56-61

On-Machine Cutting Tool Wear Monitoring Technique Based On Edge Diffraction Theory, Chabum Lee, Seongkyul Jeon

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 65-69

Determination Of Mechanical Properties For Type 1 Portland Cement Paste With Glass Microspheres As An Inert Filler, Zachary J. Wallace, Damian L. Stoddard, Matt Nelms, Wayne Hodo, A M. Rajendram

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 70-74

Dynamic And Damping Properties Of Wood - Based Composite Using The Cantilever Beam Vibration Technique, Maharshi Dave, Tejas Pandya, Damian Stoddard

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 75-81

Novel Surface Roughness Measurement Technique Using Capacitance Effect, Soomin Choi, Chabum Lee

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 82-84

Numerical Investigation Of Shock Wave Propoagtion In Biomineralized Fish Scale, Matthew Nelms, Wayne Hodo, A M. Rajendran

Early Career Technical Journal (ECTJ)

Section 3: Materials; pp. 90-94

Hierarchical Grouping In Particle Swarm Optimization – Hgpso, Sanjay Sarma O V, Ramana M. Pidaparti, Ankita Joshi

Early Career Technical Journal (ECTJ)

Section 4: Materials; pp. 97-103

Applications Of Lidar In Autonomous Vehicles, Allen J. Stewart, Jonathan Burden, Kevin Mcfall

Early Career Technical Journal (ECTJ)

Section 5: Miscelleneous; pp. 131-133