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Methodology Development For The Measurement And Analysis Of Sediment Oxygen Demands And Nutrient Releases, Luis Alfonso Laurens Vallejo

Theses and Dissertations

Sediment oxygen demand (SOD) and nutrients releases from the bottom sediments of a water body are important parameters to be included in studies of water quality processes. Two methods to measure SOD, in situ and at laboratory, were applied at Eckie’s Pond on late spring of 2015. Based upon preliminary results, which showed greater values for the in situ method, some modifications of procedures and equipment were made to improve the measurements. Another set of measurements were made on June of 2016, however their results were not conclusive to establish a correlation between these methodologies. As a result of this …

Fall Migrant Waterbird Community Structure And Stable Isotope Ecology In The Mississippi Alluvial Valley And Northern Gulf Of Mexico: Use Of Migratory Bird Habitat Initiative Sites And Other Wetlands, Justyn Richard Foth

Theses and Dissertations

The Mississippi Alluvial Valley (MAV) was dominated by extensive lowland forests, but during the 20th century most of the MAV was converted to agricultural, aquaculture, and other human uses. These land-use changes created stopover migration and wintering habitats for waterfowl, shorebirds and other waterbird species. Before landscape modification of the MAV, shorebirds likely migrated past the MAV to wetlands along the northern Gulf of Mexico (NGoM). In 2010, the Deepwater Horizon oil spill impacted coastal marshes of the NGoM. The USDA Natural Resources Conservation Service implemented the Migratory Bird Habitat Initiative (MBHI) to provide waterbirds with wetlands inland of oil-impacted …

Fatigue Behavior And Modeling Of Polyether Ether Ketone (Peek) Under Constant And Variable Amplitude Loadings, Rakish Shrestha

Theses and Dissertations

The fatigue behavior and cyclic deformation of polyether ether ketone (PEEK) subjected to various uniaxial cyclic loading conditions were experimentally investigated. These include constant amplitude and multi-block loading conditions at various frequencies with zero and non-zero mean strains. Under constant amplitude loading, increasing the test frequency generally resulted in longer fatigue lives for PEEK, while a minimal effect of tensile mean strain was observed. For all fatigue tests under fully- reversed multi-block loadings, pre-loading was found to have a significant beneficial effect on PEEK fatigue resistance irrespective to the load sequence. However, no obvious load history and sequence effect on …

Fatigue Behavior Of Ti-6al-4v Eli Including Mean Stress Effects, Patricio E. Carrion

Theses and Dissertations

This study investigates the cyclic deformation, fatigue behavior, and failure mechanisms for Ti-6Al-4V ELI (extra low interstitial) with and without mean strain/stress. Mean stress effects on fatigue behavior were studied using four strain ratios. Fatigue data generated was used to assess mean stress fatigue life prediction approaches, including stress-based methods such as Goodman, Gerber, Morrow, Walker and Kwofie; as well as strain-based models, such as Morrow, Smith-Watson-Topper, Walker, Kwofie, Ince-Glinka and a modified version of the Smith-Watson-Topper. The stress-based models did not yield reasonable results and data scatter was observed. The strain-based models offered better results, specifically the Morrow approach …

Internal State Variable Plasticity-Damage Modeling Of Aisi 4140 Steel Including Microstructure-Property Relations: Temperature And Strain Rate Effects, Reda Nacif El Alaoui

Theses and Dissertations

Mechanical structure-property relations have been quantified for AISI 4140 steel under different strain rates and temperatures. The structure-property relations were used to calibrate a microstructure-based internal state variable plasticity-damage model for monotonic tension, compression and torsion plasticity, as well as damage evolution. Strong stress state and temperature dependences were observed for the AISI 4140 steel. Tension tests on three different notched Bridgman specimens were undertaken to study the damage-triaxiality dependence for model validation purposes. Fracture surface analysis was performed using Scanning Electron Microscopy (SEM) to quantify the void nucleation and void sizes in the different specimens. The stress-strain behavior exhibited …

Spatial And Trophic Niche Specialization In Castor Canadensis, Robert Antonio Francis

Theses and Dissertations

The Hutchinsonian niche is the n dimensional hyper volume that allows for the persistence of a species. Castor canadensis, a large semi-aquatic rodent, is an ecosystem engineer and often a keystone species for many ecosystems. I examined the effect of multiple spatial scales on hierarchical habitat selection byC. canadensis using presence-only modeling techniques. I also determined individual trophic niche specialization in C. canadensis utilizing stable isotope analysis. I concluded that C. canadensis displayed scale independent habitat selection when comparing landscape and fine spatial scales. Individual trophic niche specialization occurred in colonies of the same resource availability. Also, individual trophic niches …

Evaluation Of Unstructured And Overset Grid Methods For Blast Analysis Using Loci/Blast With Emphasis On Urban Environments, Mark Anthony Hunt

Theses and Dissertations

The MSU Loci/BLAST CFD code was used to study blast wave interactions with structures for different urban environments. A series of analyses which included single building structures inside of ERDC's Blast Load Simulator (BLS) with different obliquity orientations to the flow direction, two building structures inside the BLS with varying gap distances between the structures, and open air blast simulations with four structure scenarios at different building spacings and different blast orientations were performed. Unstructured and overset grid techniques were used during the modeling process and were compared for consistency with shock physics and computational performance. Results show Loci/BLAST's capability …

Hybrid Electric Aircraft, Hajar Righi

Theses and Dissertations

The main concerns of air travel are the operating costs of general aviation aircraft. Hybrid-electric system design provides a great opportunity for future aircraft models to be environmentally friendly. The Hybrid-electric power propulsion system experienced a growing interest driven by determined targets. Electric technologies have proven promising success to achieve a successful result in the near- and long-term. Combining fuel cells and batteries, this technology can enable a significant reduction in fuel consumption, noise, and emissions. Different types of fuel cells and batteries are proposed and discussed during this work. The Cessna C-172 is a candidate to test the combination …

Asset Protection In Escorting Using Multi-Robot Systems, Stephen Powers

Theses

Swarm robotics is a field dedicated to the study of the design and development of certain multi-robot systems. Often times, these groups prove to be more beneficial than a single complex robot as swarms typically provide a more robust and potentially more efficient solution. One such case is the task of escorting a specified target while addressing any potential threats discovered in the environment. In this work, a control algorithm for a high volume, decentralized, homogeneous robot swarm was developed based upon a technique commonly used to model incompressible fluids known as Smoothed Particle Hydrodynamics (SPH).

This proposed solution to …

Truckers Disrupt Six Latin American Economies, Andrã©S Gaudã­N

NotiSur

No abstract provided.

Toward Scalable Nanomanufacturing Using Capillarity, Daeyeon Lee

Amgen Seminar Series in Chemical Engineering

In this talk, I will describe new approaches for scalable manufacturing of nanocomposites with unique structures and properties by exploiting capillary interactions between solid particles and fluids. In the first part of this talk, I will describe our work on generating polymer nanocomposite films (PNCFs) with extremely high loadings of nanoparticles using capillary rise infiltration (CaRI). Owing to the high loadings of nanoparticles, these PNCFs have extraordinarily high hardness, modulus and scratch resistance. In CaRI, PNCFs are formed by thermally annealing a bilayer of polymer and nanoparticle, which induces imbibition of polymer into the nanoparticle layer. CaRI represents an interesting …

Condos, Connectivity, And Catch: Analyzing The State Of The Bahamian Spiny Lobster Fishery., Karlisa Alicia Callwood

Open Access Dissertations

Caribbean spiny lobster (Panulirus argus) is a heavily exploited seafood throughout its range and supports the primary fishery in The Bahamas. However, its long pelagic larval duration and, thus, potential for long-range dispersal increases the difficulty in determining the origins of local populations and complicates management. In recent years, the Bahamian fishery has transitioned to the use of condos (or casitas) as the primary fishing method. Condos are relatively inexpensive to construct and deploy, and it is estimated there are now over a million deposited throughout the Bahama banks. Collectively, these factors, coupled with an increased level of effort in …

The Disconnect Of Hawaiian Culture And Marine Management In West Hawaii: A Case Study On The Aquarium Trade, Alohi L. Nakachi

Open Access Theses

In West Hawaii, marine management and the Hawaiian culture share common goals and ideals. However, the reasoning, beliefs and ethnic identities behind such goals greatly differ. As such, there is a lack of communication and even cooperation between groups. This paper seeks to understand the conflict and interactions between these groups and other interest groups involved with the aquarium trade. The area studied is in West Hawaii where the majority of fish in the state are caught for the aquarium trade (Walsh, 2014). The aquarium trade is analyzed to asses the extent in which social and Hawaiian cultural aspects are …

Jack Blanco – Interned In Germany During Wwii, Vance Gentry

World War II

No abstract provided.

Ronald Mohr, A Reflection Of The Great Depression, World War 2, The Korean War And Their Impact On Society, Eden Garmon

World War II

No abstract provided.

The Korean War Through The Eyes Of Ray Deweese, Yulissa Y. Lara

Korean War

Ray DeWeese was born in Cleveland, TN on May 10, 1928 and has lived in Cleveland most of his life. He enlisted in the Marine Corps at 17 years old and fought towards the end of World War II and went off to be a pilot and officer during the Korean War. This interview depicts Mr.DeWeese’s experience during World War II but digs deeper into the difficulty of being a pilot during the brutal Korean War. As Mr. DeWeese recounts his traumatic experience he emphasizes how his diligent training, hardworking comrades, and his Faith in God got him through the …

The Five Hundred And Thirty-Sixth Report Of The Curricular Affairs Committee., University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

Curricular Report No. 2016-17-2 From The Graduate Council To The Faculty Senate: Program Changes., University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

General Education Committee Report #2016-17-4: New General Education Courses., University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

Curricular Report No. 2016-17-2 From The Graduate Council To The Faculty Senate., University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

Curricular Report No. 2016-17-2a From The Graduate Council To The Faculty Senate: Creation Of Graduate Certificate In Embedded Systems., University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.

December 8, 2016, James Madison University

The Breeze, 2010-2019

The Breeze is the student newspaper of James Madison University in Harrisonburg, Virginia.

The Setonian, December 8, 2016, Seton Hall University

2016

No abstract provided.

The Minutes Of The Marshall University Faculty Senate Meeting, December 8, 2016, Marshall University Faculty Senate

Faculty Senate Minutes

No abstract provided.

Otter Realm, December 8, 2016, California State University, Monterey Bay

The Otter Realm

And Now What? -- Women and the Election -- A Journalism Journey -- Capstone Festival -- And Now What? Undocumented students in the age of Trump -- Post-Election Reflections -- Men's Basketball in Heartbreak Bay -- Dance Around! CSUMB's Dance Team performs in Salinas Parade of Lights -- Otters Struggle at the Season's Start -- Player Profile: Michael Loncaric, Senior, SBS, Rugby -- Sharp Nine Performs at World Theater: CSUMB band blends latin jazz with their own beats to create unique sound -- Chief Eats; Grandma's Kitchen, Seaside -- Otter Ebert: Nocturnal Animals & Fantastic Beasts -- Mending Monologues Holds …

2016-December-08-Grammy Nominations, University Marketing And Commucications, East Tennessee State Univeristy

ETSU News

No abstract provided.

Daily Eastern News: December 08, 2016, Eastern Illinois University

December

No abstract provided.

The Weekly Challenger, December 8, 2016, The Weekly Challenger, Et Al

Weekly Challenger Newspaper Collection

The December 8, 2016, issue of The Weekly Challenger.

The Effectiveness Of Participation In A Project-Based Learning Project On At-Risk Student Self-Efficacy, Benjamin Aaron Weber

Dissertations and Theses

Project-based learning is a multifaceted approach to teaching in which students explore real-world problems and challenges while working in small collaborative groups. Project-based learning is active and engaging and drives students to obtain a deeper knowledge of the subjects they're studying, and students develop confidence and self-direction as they move through both team-based and independent work. This project endeavored to assess the effect of participation in a project-based learning (PBL) activity of the Wind and Oar Boat School's curriculum on the self-efficacy of at-risk high school students. Twenty students participated in the program for both math and applied arts credits …

Predictive Modeling Of A Two-Stage Gearbox Towards Fault Detection, Edward J. Diehl

Doctoral Dissertations

This research presents a systematic approach to health monitoring using dynamic gearbox models (DGM) and the harmonic wavelet transforms (HWT) for vibration response analysis. A comprehensive DGM is developed, the model parameters are identified through correlated numerical and experimental investigations, and HWT analysis is performed to illustrate the fault detection and diagnosis procedure and capability of this approach. The model fidelity is validated first by spectrum analysis, using constant speed experimental data, and secondly by HWT analysis, using non-stationary experimental data. The comparison confirms that both the frequency content and the predicted, relative response magnitudes match with physical measurements. Model …