Physics Commons^™

Solving Electron Spin Drift-Diffusion Equations In Presence Of Hyperfine Interactions, Dana Coleman, Bryan Stevens, Truman Schulz

Undergraduate Research Competition

Next generation technologies have been proposed where electron spin is used in addition to electron charge in order to improve functionality and efficiency of electronic devices. In this work, we study how nuclear fields, magnetic fields from atomic nuclei, influence spin transport characteristics in semiconductors. Nuclear fields are added to the spin drift- diffusion equation and the resulting spin distributions are calculated. Due to the complicated nature of the nuclear field, the steady state spin drift-diffusion equations are non-linear and must be solved numerically. In this work, we examine solutions for the spin distribution and spin current in the presence …

Detecting Radium-226 In Submarine Groundwater Discharge, Rashaun Davis

Undergraduate Research Competition

Studies have been done to see if abundance of neutrinos have an effect on the decay rate of radioactive nuclei. Questions regarding the proximity of the sun and the concentration of the flux of neutrinos as a result, have emerged due to there being more counts in the winter when the sun is closer versus there being less counts in the summer when the sun is farther away. Other studies say that the cause of the difference in counts are more local, as in the environmental conditions like temperature and various background radiation that interferes with the counts of the …

E. Coli And Total Coliform, Emilio Wilson

Undergraduate Research Competition

Water is important because we use it for our everyday use, whether it's for drinking, bathing, or for our enjoyment. Pollution causes the environment to have a harmful effect, which is usually caused by microorganisms (bacteria) Some of those Bacteria include E. coli and Total Coliform. They're mainly found in the intestines of humans, in animals, in water, and also found in the soil. Most of these bacteria are harmless but it can provide you with symptoms of diarrhea, vomiting, and stomach cramps. When water comes in contact with feces, humans, or any living organism, the water is contaminated. There …

Monitoring Nitrogen Levels At 11th Ave. N Surfside Beach, Sc, Kyle Lavoie

Undergraduate Research Competition

This research was done to monitor Ammonia, Nitrite, and Nitrate which are measured to assess if they were within safe levels according to the Environmental Protection Association(EPA). Ammonia, Nitrite, and Nitrate are important indicators to the amount of each that could end up in a public water supply. To much Nitrate can cause excess algae growth in lakes and is unhealthy in large amounts for humans, mainly children. Samples were tested using Ammonia test strips and Nitrite and Nitrate test strips. 242 samples were collected between May 27th, 2010 and January 26th, 2021 at 11th Ave. N Surfside Beach. The …

Monitoring Chlorophyll A And Pheophytin At Crabtree Swamp, James Blankenship

Undergraduate Research Competition

The two chemicals compound we will be looking at include Chlorophyll A and Pheophytin. These two chemicals are common in most waters around the world. While they are helpful for the ecosystem, like most everything, having too much can also be harmful. Having a high concentrate of Chlorophyll A can result in foul smell and green scum on the bottom and surface of water. Likewise, pheophytin can be harmful when it comes to dissolving oxygen in water. This can result in erosion around the water source and can lead to unwanted chemicals in water (4). The results discussed will show …

Water Monitoring At Ccu (Conductivity, Ph, Do), Gage Campbell

Undergraduate Research Competition

Monitoring water quality is important for human health. This study focuses on the 544 West site and the parameters conductivity, pH, and dissolved oxygen (DO). Data used is from Oct. 2011 through Nov. 2020 on the Coastal Carolina University campus and used an Orion™ A329 multimeter. 741 samples were collected for Conductivity, with an average of 407.8 uS/cm (145.8 uS/cm - 690.7 uS/cm). 738 samples were collected for pH, with an average of 7.15 (6.09 - 8.11). All data fell within the SC DHEC water quality standard of pH which is no lower than 5.0 or above 8.5. 735 samples …

Absorbance At The Crabtree, Jaquon Williams

Undergraduate Research Competition

Water scarcity is a growing concern across the world in this document we investigate Crabtree swamp, that’s in Conway, SC. Water absorption is the amount of water taken up by flour to achieve the desired consistency and create a quality end-product. Yet, in this case, we're talking about the Crabtree swamp land area. The goal of this research project is to compare and contrast water absorbance in the area.

The purpose of this study is to naturalize the aquatic ecosystem processes in Crabtree Swamp and improve the survivability of resources of regional significance that have been identified. Resources such as …