Digital Commons Network^™

Sensory Comparison Of Beer Carbonated Using Forced Carbonation And The Carbo Rock-It, Michala Smith

Biological and Agricultural Engineering Undergraduate Honors Theses

Craft brewing is a growing market which represents over 12% of beer produced in the United States. Dr. G Scott Osborn, PE invented the Carbo Rock-It™ to improve the carbonation process for craft breweries. The invention allows for shorter carbonation time and uses less CO₂, saving companies money and time. Because of the lack of gas losses through bubbling, Osborn theorized that the Carbo Rock-It could also prevent the “stripping of the nose” that can occur in traditional forced carbonation. Existing research supports the mechanism, as beer flavor and aroma volatiles have been detected during the release of …

The Impact Of Water Infrastructure Inequality On Marginalized Communities, Indra Khalsa

Honors Theses

America’s current system of water infrastructure poses a threat not only to the environment but also to public health. The water crisis reveals the stark inequalities that exist from both an environmental justice and a social justice perspective. There is a growing concern that without adequate investment from federal resources, the problems related to this issue will only worsen the longer they are neglected. There is little information about how specific environmental and social factors combine with water infrastructure to create long-term infrastructure inequalities. However, this thesis explores the disparities in water infrastructure affordability, vulnerability patterns, and environmental hazards. It …

Multi-Trophic Biodiversity Increases With Increasing Structural Complexity Of Forest Canopy, Ayanna St. Rose

Graduate Theses and Dissertations

Understanding the effects of forest canopy structural complexity on multi-trophic diversity is critical for conserving biodiversity and managing land sustainably. But multi-trophic diversity is often ignored when making decisions about land management due to lack of cost- and time-effective methods to evaluate it. Here, we explored a new method based on widely available remote sensing data to quantify canopy structural complexity and its relationships with multi-trophic biodiversity at landscape scale using 32 forested sites of the National Ecological Observatory Network. We investigated the influence of vertical and horizontal structural complexity of forest canopy on multi-trophic (primary producers, herbivores (beetles), omnivores …

Visions Of Science: An Art Historical Exploration Of Medieval Scientific Manuscripts, Olivia Brock

Undergraduate Honors Capstone Projects

The late 16th century saw a new movement in the world of science to push scientific ideas and practice out of academia and into the hands of the layman. No longer were scholars the sole proprietors of science –everyday laborers, craftsman, and artists now had practical scientific principles at their fingertips that they could incorporate into their professions. This new spread of science was facilitated in several ways, including the publication of books incorporating detailed, explanatory images, new utilitarian instruments, and public lectures. Though science was disseminated through a variety of means, I have been particularly interested in the ways …

Point Of Use Technologies To Increase Access To Clean Water In Rural Communities, Elena Arroway

Undergraduate Theses, Capstones, and Recitals

Access to clean water is an issue that many communities around the world struggle with. While large-scale efforts such as piping infrastructure have been successful, these are less effective at reaching small, rural communities. To supplement these efforts, point of use (POU) methods for water treatment can be implemented. These include boiling, chemical treatment, filters, and several additional technologies. These have all shown effectiveness in a lab setting, but their implementation in the real world, specifically in rural communities, has not been nearly as effective. In this paper, several different POU methods are evaluated for their effectiveness on a small-scale, …

Using A Geospatial Analysis Tool To Visualize Water Impairments And Engage Stakeholders In The San Bernardino National Forest, Jovany Estrada

Electronic Theses, Projects, and Dissertations

High quality water is an important resource that is integral to supporting environmental and human health. It is essential for economic, social and environmental purposes. Impairments to water resources can be attributed to anthropogenic sources that are associated with terrestrial activities including urban development and agricultural activities. Community-Based Participatory Research (CBPR) is an approach that can be used to include community input to improve water management strategies. In the San Bernardino National Forest (SBNF) area in southern California, there are disadvantaged communities that can benefit from a CBPR study to increase water quality in the area. A geovisualization tool will …

Identifying Associations Between Human-Environmental Factors And Water Quality Trends Observed At Perennial Headwater Streams Of The San Bernardino National Forest, California, Anna Frey

Electronic Theses, Projects, and Dissertations

Anthropogenic factors related to landscape activities, infrastructure, and alterations, coupled with severe climatic fluctuations (i.e., droughts and extreme hydrological events) are increasingly impairing the quality of surface water resources across multiple geographic scales, warranting the need for comprehensive investigations of the cumulative effects of human-environmental stressors at multiple scales within a watershed. This study assessed three perennial headwater streams of the San Bernardino National Forest, California. The streams were tested for one year from October 2019 to September 2020 for conductivity, dissolved oxygen (DO), pH, turbidity, temperature, ammonium (NH₄+), nitrate (NO₃-), total coliform (TC), Escherichia coli …

Russia, Europe And Central Asia Energy Security And Pipeline Politics, Mehmet Kınacı

Graduate Program in International Studies Theses & Dissertations

Energy Security will continue to remain as one of the top security concerns for Europe. Depleting reserves and growing energy demand have increased European dependence on external energy resources. Today, Russia is by far the largest supplier of oil, coal and the natural gas to Europe. Oil and natural gas revenues have played a vital role to rebound the Russian economy and have supported Putin’s ambitions to reestablish Russia as a great power, increasing its influence over the former Soviet space. This complex energy relationship has increasingly been a cause of concern.

The main question this study seeks to answer …

The Expansion Of Nocs: What Strengthening State-Owned Enterprises Means For Global Energy, Alexander L. Fretz

Graduate Program in International Studies Theses & Dissertations

The rise of National Oil Companies (NOCs) in the 20th century has been well documented. However, little work has been done with respect to how these entities have evolved in the 21st century. This study aims to measure the changing strength of contemporary NOCs by comparing them to their privatized counterparts. Using this comparative analysis, the study will explain the changing global energy landscape and the potential internecine effects on the international system.

Engaging Students During Research Through The Use Of Games, Francisco Gonzalez

Theses and Dissertations

Engaging students during a research seminar/meeting can be a difficult challenge, and as as student myself, I can attest to how difficult actively listening to a presentation can be. As such, upon researching more ways to have an audience engaged, one of the most promising concepts is the use of games. Games, in any form, can be very engaging to a person, and even more so if there is active engagement and participation within an audience group. With this concept in mind, I decided to take it upon myself to create a game based around a theoretical computer …

Small-Scale Variability In Warm Season, Precipitation Around An Urban Area: A Case Study Of Louisville-Jefferson County, Ky., Isaiah I. Kingsberry

Electronic Theses and Dissertations

Numerous studies have detected anomalous precipitation patterns occurring up to 50 km downwind of major cities, providing major evidence that cities inadvertently modify precipitation and atmospheric circulations. Louisville is one such major city with a growing body of evidence of inadvertent precipitation modification. Despite these efforts, the physical mechanisms driving small-scale and unintentional changes in urban precipitation are little understood, being rooted largely in theory rather than in physical observations. This study seeks to build upon previous research by analyzing ground-based precipitation observations recorded by a high-density gauge network located within approximately 40 km of Louisville’s urban center. The results …

A Mesonet-Based Analysis Of Severe Convective Winds In West Texas., Quint Long

Electronic Theses and Dissertations

Multiple studies have investigated the occurrence of severe convective-related winds and have increased our understanding of the forces driving severe winds and their spatial and temporal patterns. Data for these studies have come from airport stations maintained by the National Weather Service. Their standardization across the United States makes them ideal for research, but they are limited in their distribution. This study aims to create a similar climatology of severe surface level winds using a mesoscale network (“mesonet”). Like their ASOS (Automated Surface Observing System) and AWOS (Automated Weather Observing System) counterparts, these stations are standardized and well maintained. This …

The Impact Of Sea-Level Rise In Numerically Modeled Landfalling Hurricanes: Katrina And The Gulf Coast., Serenity Nadirah Mercuri

Electronic Theses and Dissertations

With climate change, landfalling hurricanes become an increasing threat to coastal regions. However, the interactions between the coastal landscape and landfalling hurricanes are often overlooked when addressing sea-level rise outside of inundation and independent of sea surface temperature. This study analyzed the potential impacts regarding structure and intensity as a result of sea-level rise in the Gulf of Mexico using the WRF-ARW numerical model coupled with a 1D ocean model. Analysis showed that 10 m windspeed from landfall forward was higher in modified coastlines, and minimum sea-level pressure post-landfall was consistently lower for modified runs where storms maintain a higher …

Data-Driven Framework For Understanding & Modeling Ride-Sourcing Transportation Systems, Bishoy Kelleny

Civil & Environmental Engineering Theses & Dissertations

Ride-sourcing transportation services offered by transportation network companies (TNCs) like Uber and Lyft are disrupting the transportation landscape. The growing demand on these services, along with their potential short and long-term impacts on the environment, society, and infrastructure emphasize the need to further understand the ride-sourcing system. There were no sufficient data to fully understand the system and integrate it within regional multimodal transportation frameworks. This can be attributed to commercial and competition reasons, given the technology-enabled and innovative nature of the system. Recently, in 2019, the City of Chicago the released an extensive and complete ride-sourcing trip-level data for …

Into The Depths: Climate Change Part 3, Felicia Bedford

D.U.Quark

No abstract provided.

2021-2022 Program And Abstracts: Celebration Of Student Scholarship, Morehead State University. Undergraduate Research Fellowship Program.

2022 Celebration of Student Scholarship - Poster Presentations

The 2021-2022 Program and Abstracts for the Celebration of Student Scholarship at Morehead State University held on April 27, 2022. A Showcase of Student Research, Scholarship, Creative Work, and Performance Arts.

Urban Forests And Their Potential To Combat Food Insecurity: Analyzing Street Trees In Baltimore, Md For Their Edibility, Victoria Bearden

Environment and Sustainability Honors Papers

Food insecure environments, in which residents lack consistent access to nutritious food materials, can occur in urban settings. Literature on urban forests suggests that trees can provide a range of provisioning ecosystem services, including edible uses. We consider this to determine if street trees in Baltimore, Maryland have the potential to provide nutritious food materials to address food insecurity in Healthy Food Priority Areas (HFPA), designated by Johns Hopkins Center for a Livable Future. Our analysis utilizes the Plants For a Future database and the geospatial hotspot analysis tool in Esri’s ArcMap to determine the edible quality ratings (EQR) of …

Fighting Food Insecurity In New York City: What Role For Street Trees?, Kristen Cooney

Environment and Sustainability Honors Papers

There is growing recognition that urban forests have the potential to combat food insecurity via their edible parts, namely fruits, berries, and nuts. I researched New York City’s street trees, by locating trees with edible parts within food insecure communities, to analyze this potential.

Present Situation And Prospects Of Tourism Resource Evaluation In Abandoned Mining Areas, Wang Qiuju, Wang Yue, Ma Yuying, Zhang Bo

Coal Geology & Exploration

The identification and evaluation of tourism resources are important basis for tourism planning and development in abandoned mining areas. This paper adopts literature review method and inductive analysis method to comprehensively sort out the domestic and foreign research results on the value evaluation of tourism resources in abandoned mining areas, and systematically analyze the identification, evaluation system construction and evaluation methods of tourism resources in abandoned mining areas. It is found that the current understanding of tourism resources in abandoned mining areas is only at the level of mining relics and mining heritage, lacking emphasis on the natural resources such …

P-Flux: A Phosphorus Budget Dataset Spanning Diverse Agricultural Production Systems In The United States And Canada, M. R. Williams, P. Welikhe, J. Bos, K. King, M. Akland, D. J. Augustine, C. Baffaut, E. G. Beck, A. Bierer, D. D. Bosch, Elizabeth H. Boughton, C. B. Brandani, E. Brooks, Anthony R. Buda, M. Cavigelli, J. Faulkner, G. Feyereisen, A. Fortunato, B. Lee, Jason M. Unrine

Plant and Soil Sciences Faculty Publications

No abstract provided.

Green Transformation Paths Of Closed Coalmine Industrtry In Coal Resources Cities, Zhang Lifeng, Wang Qiuju

Coal Geology & Exploration

With the implementation of China's energy supply-side structural reform and coal production capacity policy, the number of coal mines closed in China is increasing year by year, and how to transform the industry after the closure of coal mines has become an urgent problem. Most of the closed coal mines are concentrated in coal resource-based cities, and the development of closed coal mines is inseparable from the development of coal resource-based cities. The selection of their advantageous industries should be consistent with the direction of industrial transformation of the cities where they are located, so as to to make effective …

Research On Redevelopment Model Of Abandoned Mining Land From The Perspective Of Property Right Policy, Deng Yuanyuan, Chang Jiang, Feng Shanshan, Zhou Xue

Coal Geology & Exploration

The reuse of abandoned mines has become the main path for resource-based cities to realize functional transformation. The redevelopment of mining land belongs to the renewal of urban stock industrial land, which is a spatial transformation process accompanied by property right transfer. The research on the evolution of the relationship between relevant property rights policies and abandoned mine redevelopment model is helpful to understand the impact of the policy and put forward suggestions for future policies. This paper combs the national and local property rights policies since 1990, takes the redevelopment practice in different times of this period as an …

The Characteristics And Dynamic Mechanism Of Regional Development And Evolution Of Pan’An Lake, Chang Jiang, Chen Yedong, Li Zixuan, Wang Hui, Feng Shanshan

Coal Geology & Exploration

Coal mining activities will directly or indirectly affect the development and evolution of cities and their characteristics. Jiawang District of Xuzhou used to be an important coal production base in China, and Pan’an Lake region is the main area of Jiawang coal production. This paper takes Pan’an Lake region as the research object, analyzes the characteristics of its development and evolution under the influence of coal mining activities, selects social environment, economic development, policy control and resource environment as the driving factors affecting the development and evolution of the area, and uses principal component analysis to determine the main driving …

Change Of Air Quality Knowledge, Perceptions, Attitudes, And Practices During And Post-Wildfires In The United States, Alessandro Del Ponte, Lina Ang, Lianjun Li, Noah Lim, Wilson Tam Wai San, Wei Jie Seow

Political Science Faculty Articles and Research

Amid worsening climate change, the recurrent wildfires have substantially worsened air quality in the Western United States (U.S.). Understanding the knowledge, attitudes, perception, and practices (KAPP) over time in response to natural disasters such as wildfires is crucial for public health interventions and disaster preparedness. This is the first study to investigate the change in air quality KAPP over time in response to natural disasters. Previous studies have only assessed KAPP at a fixed time point. Using a two-wave panel survey (during and post-wildfires), we assessed the association between KAPP and respiratory health indicators as well as the changes over …

Policy Approaches To Increase Carbon Sequestration Capacity By Optimizing Layouts Of Ecological Construction, Jie Fan, Hongbing Wang, Daojing Zhou, Ning Ma, Baoyin Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

Improving carbon sequestration capacity through ecological construction is one of the important ways to achieve the goal of "carbon neutrality" in China. Based on the analysis of the current situation and trend of ecological carbon sequestration in China, this study summarizes the main challenges in the increment of ecosystem carbon sink in China. The current situation and trend, the significant carbon sequestration capacity of forests, the recovery phase of carbon sequestration capacity of grassland, and the carbon sequestration benefits of major ecological projects are also surveyed. Then, the new challenges of China are analyzed, including the backlog of over-mature forests …

Technological Approaches To Enhance Ecosystem Carbon Sink In China: Nature-Based Solutions, Guirui Yu, Jianxing Zhu, Li Xu, Nianpeng He

Bulletin of Chinese Academy of Sciences (Chinese Version)

Carbon peak in 2030 and carbon neutralization in 2060 has been established as one of the important strategic goals of China's economic and social development. During 2010-2020, the capacity of terrestrial ecosystems in China to sequester carbon dioxide (CO2) varied from 1.0 to 1.3 Gt/a, with high uncertainty. To enhance the carbon sink capacity of Chinese terrestrial ecosystems, the combination with land space planning and ecological protection is essential. It is necessary to first stabilize the existing carbon storage in these ecosystems, such as forest, grassland, wetland, coast, and others, and then implement some important ecological protection and ecological restoration …

Development Path Of Energy Science And Technology Under “Dual Carbon” Goals: Perspective Of Multi-Energy System Integration, Rui Cai, Hanxiong Zhu, Wangjun Li, Yu Xiao, Zhongmin Liu

Bulletin of Chinese Academy of Sciences (Chinese Version)

This study first analyzes the driving factors of China's realization of the "dual carbon" goals from the two aspects of necessity and urgency, and proposes that to achieve the "dual carbon" goals, China shall reshape the energy structure and related industrial systems in a scientific and orderly manner, in which technology innovation plays a crucial leading role. Then, based on the long-term research and deveopment in the energy field of the Chinese Academy of Sciences, the scientific and technological development path to lead the realization of the "dual carbon" goals with the concept of "multi-energy system integration" is proposed, and …

Student-Developed Laboratory Activities Using Rolling Object On An Inclined Plane To Improve Student Learning, Qing Shao, Joseph Ametepe

Georgia Journal of Science

This work presents an alternative method of teaching undergraduate introductory physics laboratory. Students are presented with an experimental scenario “Rolling object on an inclined plane” and guided to develop their own laboratory activities in a studio-style setting. The overall goal of this alternative approach is to shift part of the learning responsibility to students. Through guided self-developed activities, students establish the connections between different physics concepts. Such a shift makes students active participants in the classroom, allows them to explore ideas independently, and discover through doing the exploring. Furthermore, the pedagogy is aimed at (i) motivating and actively engaging students …

2022- The Twenty-Sixth Annual Symposium Of Student Scholars

Symposium of Student Scholars Program Books

The full program book from the Twenty-sixth Annual Symposium of Student Scholars, held on April 19, 2022. Includes abstracts from the presentations and posters.

Modeling Air Pressure Propagation Through Wind Cave And Jewel Cave: How Can Air Pressure Signals Inside Barometric Caves Be Predicted From Surface Pressure Measurements?, Annika K. Gomell, Andreas Pflitsch

International Journal of Speleology

Recent speleoclimatological research has shed new light on air pressure dynamics inside barometric caves by identifying pressure-modifying processes and resulting systematic differences between cave and surface air pressure. Based on these new findings, a multi- step quantitative model is developed and explored to predict air pressure inside Wind Cave and Jewel Cave – two major barometric cave systems in the Black Hills of South Dakota, USA – from external surface measurements. Therefore, each identified speleoclimatological pressure process is translated into a mathematical operation. Model evaluation based on Pearson correlation and mean (absolute) deviation between model outputs and control measurements yields …