Browsing by Author "Marghitu, Dan"

Now showing items 21-40 of 54

Experimental and Theoretical Analysis of the Impact with Solid and Flexible Surfaces

Cermik, Ozdes (2017-04-21)

Impact plays an important role in many engineering applications, mechanical systems, and different areas such as robotics, machine design, etc. It is a complex phenomenon that occurs when two or more bodies collide. In the ...

Fault Detection and Exclusion in Deeply Integrated GPS/INS Navigation

Clark, Benjamin (2012-12-04)

This dissertation presents a novel fault detection and exclusion method in a centralized deeply integrated GPS/INS navigation system. The method presented is also demonstrated in a centralized vector tracking GPS ...

Feasibility Study of Human Lumbar Motion using Variability Techniques

Pawar, Yuvraj (2011-04-20)

More than 80 percent of people suffer from low back pain at some point in their lifetime. It is one of the most prevalent musculoskeletal disorders in the United States. The pain can be short-lived or long-lasting. In ...

Feasibility Study of Ultrasound Measurements on the Human Lumbar Spine

Pothuganti, Virabadra (2006-12-15)

This study is a part of a research project that aims to measure the variation in the intervertebral distance of patients that are subjected to lumbar flexion-distraction chiropractic manipulation. The purpose of this ...

Field Aligned Currents Derived from Pressue Profiles Obtained from TWINS ENA Images

Wood, Keith (2017-08-21)

Field aligned currents (FACs) are an important mechanism coupling the Earth's magnetosphere and ionosphere. The Two Wide-Angle Imaging Neutral-atom Spectrometers (TWINS) mission is the first stereoscopic neutral atom ...

The Frictional Impact of Two Link Chain with a Flat

Akhan, Ahmet (2019-04-16)

Mechanical impact is an important phenomena in mechanical systems such as robotics, multibody systems, spacecraft vehicles, ground vehicles, etc. It is a complex phenomenon that occurs when two or more bodies collide. ...

Graph-Based Relative Path Estimation Using Landmarks for Long Distance Ground Vehicle Following

Pierce, Dan (2022-12-08)

This dissertation presents a graph-based sensor fusion framework for the localization of automated ground vehicles for leader-follower path duplication. A specific focus is given to scenarios where the following distance ...

High-Dynamic Range Collision Detection using Piezoelectric Polymer Films for Planar and Non-planar Applications

Wooten, James Michael (2013-07-10)

This thesis develops a large area collision detection system utilizing the piezoelectric ef- fect of polyvinylidene fluoride film. Complex high speed autonomous articulations associated with modern large-scale high ...

Impacts of Kinematic Links with a Granular Material

Lee, Seunghun (2009-06-26)

The impact of kinematic links into a granular material is studied. In the impact process through the granular material defined as a conglomeration of discrete solids, the most important force governing the motion of a body ...

Incorporation of a Foot-Mounted IMU for Multi-Sensor Pedestrian Navigation

Pierce, Daniel (2016-04-29)

This thesis deals with pedestrian localization by way of multi-sensor fusion. A special focus is made on the use of a foot-mounted inertial measurement unit (IMU) and its incorporation into other pedestrian navigation ...

Innovations in Engineering Curriculum and Teaching: A Research-Based Study

Swamidason, Sai Maharaja (2014-12-15)

Universities have progressively improved in regards to the usage of technology in teaching-learning methodologies. Tools like videoconferences, chats and blogs, podcasting, webcasting and webinars, video streaming, and ...

Knee Valgus vs. Knee Abduction Angle: Comparative Analysis of Valgus Alignment Measurement Methods in Female Athletes

Oldfather, Taylor (2020-07-30)

Precise mathematical methods have been developed to quantify lower limb kinematics in anatomically meaningful ways to aid clinicians and researchers in a range of ways from injury prevention to rehabilitation practices. ...

A Machine Vision and Sensing System for Braid Defect Detection, Diagnosis and Prevention During Manufacture

Branscomb, David (2007-12-15)

The mechanical properties of braids are often quite convenient for achieving the high performance levels expected of composite materials. A favorable attribute of a braided structure is the ability for the design engineer ...

Modeling and Experimental Behavior Studies on Tin Whiskers

Wang, Zekun (2021-12-06)

The spontaneous growth of tin whiskers can occur under room temperature conditions. However, under more extreme external conditions (e.g., high temperature, high humidity, or thermal cycling), the rate of such growth tends ...

Modeling Simulation and Preliminary Experimentation on Towed Tether System

Kolla, Pradeep (2007-12-15)

Aero-dynamic drag forces and their effect on the path taken by a cable in a towed system are studied with the aid of an advanced computational software packages. A piece of rope (tether) is towed at the top end in a ...

Nonlinear Analysis of Horses Trotting with and without Sedation

Cao, Jinghua (2015-12-10)

It is common to use sedatives in equine practice for surgical procedures, standing or recumbent, and for control of unruly patients. In recent years, there have been many investigations concerning the effect sedation might ...

Nonlinear Dynamics of Equine Locomotion and Robotic Systems

Zhao, Jing (2023-08-09) ETD File Embargoed

Inherently most systems are nonlinear, whether they are biological systems in nature or mechanical systems in the industry. The analyses of nonlinear dynamic phenomena in these systems play an important role in monitoring ...

Nonlinear Optical and Photovoltaic Studies of Specific Nonconjugated Conductive Polymers and Metallic Nanoparticles

Van Cleave, Justin (2024-06-27)

In this research, the nonlinear optical properties of specific nonconjugated conductive polymers and gold nanoparticles in transparent dielectric media have been investigated. Photovoltaic devices utilizing nonconjugated ...

Online Monitoring of State of Health for AGM Lead Acid Batteries

Gao, Yumeng (2015-07-29)

Prediction of degradation states like power and capacity fade is the most challenging issue for rechargeable batteries, which is called State of Health (SOH). Power and capacity fade is evaluated by predicting Available ...

Passive Pendulum Balancer for Rotor Systems

Horvath, Roland (2006-05-15)

Automatic, passive self-balancing systems are important tools for reducing the effects of synchronous vibration in a variety of rotating machinery. Such systems are ideally capable of precise balancing, subject to certain ...