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Articles 1 - 26 of 26
Full-Text Articles in Architecture
Seasonal Comparison Of Air Quality Variables And Evaluation Of Carbon Dioxide And Particulate Measurement Period In Classrooms, Daud Nosham
Durham School of Architectural Engineering and Construction: Dissertations, Thesis, and Student Research
Indoor air quality and thermal environmental variables were measured in 55 classrooms in the mid-western United States spanning a full academic year. The studied air quality and environmental factors included carbon dioxide, temperature, relative humidity, particle counts, air velocity, formaldehyde, total volatile organic compounds, carbon monoxide, nitrogen dioxide, and ozone.
Carbon dioxide and Particulate matter concentrations were measured for a four-day measurement period. Then one-day, two-day, and four-day occupied time average concentrations were calculated which were then compared statistically to figure out an appropriate measurement period for these air quality variables. Kruskal Wallis test and Wilcoxon test were used to …
Towards Sustainable Development: Civic Architecture As Material Banks, Kathleen O'Gara
Towards Sustainable Development: Civic Architecture As Material Banks, Kathleen O'Gara
Masters in Architecture Program: Theses
This thesis posed the question, “How can buildings be designed to be disassembled and reused to reduce construction and demolition waste and reduce our unsustainable reliance on raw materials?” Designing for disassembly and reuse has the potential to dramatically increase the life of building materials, thus decreasing construction and demolition waste relating to architecture. When designing with deconstruction and reuse in mind, designers must consider the next life of these materials. The thesis was further narrowed to push the adaptability of these materials by designing a structural kit of parts. The structure system is often seen as a stable and …
Water Wise Landscape Practices: A Case Study For The City Of Gering, Christina E. Land
Water Wise Landscape Practices: A Case Study For The City Of Gering, Christina E. Land
Community and Regional Planning Program: Professional Projects
This professional project is founded on my education, experiences, and networks. I have had the opportunity to use what I have learned thus far and be challenged to look at public planning from a different perspective. In partnership with the City of Gering I was able to get knee deep in the facility planning of the city owned property which is home to the Community Ever Green House. The project reviews how the property is integrated into the community and the impact it has. Then, identifies opportunities to improve overall functionality with a closer look at addressing hazard mitigation using …
Evaluating Biophilic Design Characteristics In Lincoln Public Schools, Sarah Burr
Evaluating Biophilic Design Characteristics In Lincoln Public Schools, Sarah Burr
Department of Environmental Studies: Undergraduate Student Theses
A mixed qualitative-quantitative study was conducted in Lincoln, Nebraska to observe and evaluate the biophilic design characteristics in Lincoln Public Schools (LPS). There is a significant lack of nature in urban environments, especially in older buildings and schools, therefore incorporating natural elements in school buildings can promote the success of students and contribute to improved well-being. The research question this study aims to address is: How and to what degree are Lincoln Public Schools integrating biophilic design characteristics in their high school buildings? Four high schools were toured utilizing an evaluation form with 10 biophilic design characteristics and a 5-point …
The Design Of An Agricultural Youth-Centered Rural Development Program In Rwanda, Laetitia Igiraneza Sinyigenga
The Design Of An Agricultural Youth-Centered Rural Development Program In Rwanda, Laetitia Igiraneza Sinyigenga
Honors Theses
Rwanda is primarily a rural, young, and agriculture-based country. The referred variables- agriculture, rural population, and youth- can be creatively merged to engage and empower youth for rural development. This paper indicates the utilization of cross-disciplinary knowledge to design an agricultural youth-centered rural development program in Rwanda. The program uses the interdependence of economic sectors (agriculture and education) with resources (environmental & natural resources and human resources) to boost rural community development. The program’s main activities- mentorship, agribusiness training, tutoring, exposure visits, and community work- highly reflect the requirement for advancing the selected main economic sectors and resources. There is …
Regenerating Agroecosystems By Overcoming Human Exceptionalism In Designing For Increased Equity Of Benefits From Ecoservices, Ali Loker, Charles A. Francis
Regenerating Agroecosystems By Overcoming Human Exceptionalism In Designing For Increased Equity Of Benefits From Ecoservices, Ali Loker, Charles A. Francis
Department of Agronomy and Horticulture: Faculty Publications
Our commentary explores three critical issues related to ecosystem services. First is how ecoservices are currently designed and implemented primarily for human benefit without concern for how these impact other species. We conclude that awareness of this imbalance is the first step toward meaningful change. Second we observe that human exceptionalism guides most decisions, and ask whether we can overcome this mind-set to embrace ecoregeneration and design of resilient and mutually beneficial agroecosystems. Our attitude toward the challenge and moving toward greater humility about human roles that guide management decisions in the ecosystem is a requisite for change. Third we …
Wetland Conservation Effects Result In Enhanced Playa Functionality In The Rainwater Basin, Nebraska, Hong Zhang
Wetland Conservation Effects Result In Enhanced Playa Functionality In The Rainwater Basin, Nebraska, Hong Zhang
Community and Regional Planning Program: Theses and Student Projects
This study assessed the functionality level of wetland hydrology, hydrophyte and soil conditions, and then identified the restorable potential of conserved playas. The distribution of hydrology and hydrophyte were geospatially examined through annual tracking the quantity and quality of wetlands on historical hydric soil footprints under different conservation programs in the Rainwater Basin (RWB) in Nebraska, USA during 2004-2015. The results show that the historical hydric soil footprints with the conservation programs had significantly higher functionality of ponded water and hydrophyte than non-conserved wetlands. The yearly average of ponded water areas within footprints varies at 12.59% for the Waterfowl Production …
Geological Principles Illustrated In The Art Along The Antelope Valley Hiker/Biker Trail – The Big X (Salt Creek Roadway/Antelope Valley Parkway) South To Q Street, Robert Diffendal, Jr.
Geological Principles Illustrated In The Art Along The Antelope Valley Hiker/Biker Trail – The Big X (Salt Creek Roadway/Antelope Valley Parkway) South To Q Street, Robert Diffendal, Jr.
School of Natural Resources: Faculty Publications
When the weather is good (and even sometimes when it isn’t) I occasionally walk around the periphery of the UNL city campus, often over the lunch hour, now that the trails and the sidewalks allow one to walk a complete circuit. The walk along Antelope Creek from the Big X to Q Street is beautiful. The designers of the project made nice art works on the floor of the creek and on the retaining walls on the valley sides that add to the beauty of nature.
I am a geologist and wondered about some of the art and its meaning …
Funding Strategies For Non-Traditional University Ms4 Stormwater Programs, Elizabeth M. Garrett
Funding Strategies For Non-Traditional University Ms4 Stormwater Programs, Elizabeth M. Garrett
Community and Regional Planning Program: Theses and Student Projects
Stormwater programs have historically been stymied by lack of proper funding resources. Unlike drinking water and sanitary sewer utility services that long ago transitioned to enterprise funds, a stormwater utility continues to evade stable and direct revenue sources throughout much of the United States. Inefficiently funded stormwater programs utilizing general funding practices leaves stormwater management programs unable to properly plan for long-term improvement, management, regulatory compliance, and maintenance. Funding research has established that forms of direct funding sources are crucial for successful stormwater programs, however, focus has been directed to strategies for municipalities. This paper will attempt to analyze, through …
A Multi-Scale Spatiotemporal Modeling Approach To Explore Vegetation Dynamics Patterns Under Global Climate Change, Bingwen Qiu, Zhuangzhuang Wang, Zhenghong Tang, Zhe Liu, Difei Lu, Chongcheng Chen, Nan Chen
A Multi-Scale Spatiotemporal Modeling Approach To Explore Vegetation Dynamics Patterns Under Global Climate Change, Bingwen Qiu, Zhuangzhuang Wang, Zhenghong Tang, Zhe Liu, Difei Lu, Chongcheng Chen, Nan Chen
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
Given the complexity of vegetation dynamic patterns under global climate change, multi-scale spatiotemporal explicit models are necessary in order to account for environmental heterogeneity. However, there is no efficient time-series tool to extract, reconstruct and analyze the multi-scale vegetation dynamic patterns under global climate change. To fill this gap, a Multi-Scale Spatio-Temporal Modeling (MSSTM) framework which can incorporate the pixel, scale, and time-specific heterogeneity was proposed. The MSSTM method was defined on proper time-series models for multitemporal components through wavelet transforms. The proposed MSSTM approach was applied to a subtropical mountainous and hilly agro-forestry ecosystem in southeast China using the …
Automated Cropping Intensity Extraction From Isolines Of Wavelet Spectra, Bingwen Qiu, Zhuangzhuang Wang, Zhenghong Tang, Chongcheng Chen, Zhanling Fan, Weijiao Li
Automated Cropping Intensity Extraction From Isolines Of Wavelet Spectra, Bingwen Qiu, Zhuangzhuang Wang, Zhenghong Tang, Chongcheng Chen, Zhanling Fan, Weijiao Li
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
Timely and accurate monitoring of cropping intensity (CI) is essential to help us understand changes in food production. This paper aims to develop an automatic Cropping Intensity extraction method based on the Isolines of Wavelet Spectra (CIIWS) with consideration of intra- class variability. The CIIWS method involves the following procedures: (1) characterizing vegetation dynamics from time–frequency dimensions through a continuous wavelet transform performed on vegetation index temporal profiles; (2) deriving three main features, the skeleton width, maximum number of strong brightness centers and the intersection of their scale intervals, through computing a series of wavelet isolines from the wavelet spectra; …
Wetland Inundation Mapping And Wetland Restoration Planning: A Case Study Of Playa Wetlands, Nebraska, Yue Gu
Community and Regional Planning Program: Theses and Student Projects
There has been a variety of wetland monitoring projects implemented in playa wetlands in Nebraska over the last decades. But there is still a lack of continuous wetland monitoring on long-term and large-area dimension. Because inundation condition is one of the critical parameters to describe wetland hydrologic performance, this study aims to assess the inundation alteration in playa wetlands in Nebraska and evaluate the performance of wetland conservation and restoration practices. This study uses the Landsat data to create playa wetland inundation condition maps and analyze the variation trend of inundated playa wetlands over the past 30 years. The results …
Green Roof Energy Balances For Native Grasses And Sedum, Chris Schwarz
Green Roof Energy Balances For Native Grasses And Sedum, Chris Schwarz
School of Natural Resources: Dissertations, Theses, and Student Research
Green roofs offer a possible solution to reduce urban heat island effects caused by urbanization. Conventional green roofs use sedum for plant cover but growing evidence suggests native species offer better results for harsher environments. However, more information is needed to understand the potential of native species for green roof use in terms of survivability and cooling potential. This study was conducted from July 2013 through October 2013 to quantify the energy balance components for native grasses and sedum on a Midwestern green roof. The semi-intensive green roof located on the Larson Building parking garage in Lincoln, NE was used …
Non-Structural Program To Limit E. Coli Within Antelope Creek Lincoln, Nebraska, Jeffrey Polkowski
Non-Structural Program To Limit E. Coli Within Antelope Creek Lincoln, Nebraska, Jeffrey Polkowski
Community and Regional Planning Program: Professional Projects
Beginning in 2008, The City of Lincoln, Nebraska set forth efforts to reduce pollutant loads within Antelope Creek below U.S. Environmental Protection Agency (EPA) criteria with the goal of eventually having segments of the stream removed from the Clean Water Act 303(d) list of impaired waters. Early efforts focus on channel improvements made as part of the Antelope Valley Project to increase the flood carrying capacity of the Creek. However, additional funding is being provided through an intergovernmental agreement between the Nebraska Department of Environmental Quality and the City of Lincoln (Grant Number: 56-1283) to allow the City of Lincoln’s …
An Interpretive Plan Guide For Wilderness Park In Lincoln, Nebraska, Rachel J. Ward
An Interpretive Plan Guide For Wilderness Park In Lincoln, Nebraska, Rachel J. Ward
Community and Regional Planning Program: Professional Projects
Wilderness Park, located in Lancaster County, Nebraska, is a public park of unique ecological and historical value to the city of Lincoln and to the surrounding region. The natural and historical features of the park present an opportunity to communicate environmental and historical topics that are relevant on local, national, and global levels, as well as inspire a lively sense of pride in the community. The problem is that many topics relevant to Wilderness Park are not currently being interpreted at the park, and that there are relatively few interpretive resources available to park visitors.
The purpose of this project …
Quantifying And Modeling Stream-Aquifer Interactions In The Elkhorn River Basin, Nebraska, Can Liu
Quantifying And Modeling Stream-Aquifer Interactions In The Elkhorn River Basin, Nebraska, Can Liu
School of Natural Resources: Dissertations, Theses, and Student Research
This study combined statistical analyses, field investigations and numerical groundwater flow modeling to quantify the connectivity between the Elkhorn River and its adjacent aquifers in Nebraska. The Mann-Kendall trend tests were conducted to detect increasing or decreasing tendencies on the time series data of streamflow, which were collected from eighteen gauging stations in the Elkhorn River and its tributaries. Decreasing trends were not found in the annual streamflow data.
Field investigation of streambed hydraulic properties was performed in the Elkhorn River near Winslow and Norfolk. Vertical hydraulic conductivities (Kv) of the shallow streambed sediments were obtained by …
Drought Planning Research In The United States: An Overview And Outlook, Xinyu Fu, Zhenghong Tang, Jianjun Wu, Kevin Mcmillan
Drought Planning Research In The United States: An Overview And Outlook, Xinyu Fu, Zhenghong Tang, Jianjun Wu, Kevin Mcmillan
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
Drought is widely known as an insidious hazard due to its complex and unique characteristics. Drought disasters have brought tremendous economic losses and significant social and environmental impacts to communities across the globe. To further understand the hazard drought poses and provide insights into planning for drought preparedness, this article conducts a thorough literature review of drought hazard and drought planning frameworks within the United States. Two main approaches and three major forms of drought planning are discussed and summarized. Based on this review, a preliminary overview of drought planning status in the United States is presented. This study provides …
A Health Impact Assessment Of Mixed Use Redevelopment Nodes And Corridors In Lincoln, Nebraska, Katie Clear
A Health Impact Assessment Of Mixed Use Redevelopment Nodes And Corridors In Lincoln, Nebraska, Katie Clear
Department of Environmental Studies: Undergraduate Student Theses
Obesity is a growing threat to America’s health. The national rate of obesity is 34% (Health Consequences, 2011), and Lincoln, Nebraska is not far behind that trend at 20.7% (BRFSS, 2011). Increasing physical activity is one way to reduce weight gain, (Edwards, 2008) and further studies show that small changes to the built environment can induce people to use alternative and more active forms of transportation such as biking, walking, and public transportation (Edwards, 2008; Zheng, 2008). The 2040 Comprehensive Plan for Lincoln, NE includes language to create a more walkable community. The proposal is to redevelop existing areas within …
The Urban Fabric Of The Great Plains, Andrew Becker
The Urban Fabric Of The Great Plains, Andrew Becker
Department of Environmental Studies: Undergraduate Student Theses
To most Americans the Great Plains region of North America is mysterious place. There are disagreements when defining its limits, and some people just refer to it as the Midwest. The Great Plains has been a place under an ocean, a place under glaciers, and a place on fire. It was once dubbed “the Great American Desert,” but is now known for its agricultural viability. The Great Plains sparks imagination because it is so massive and was one of the final frontiers for Euro-American settlement. The Great Plains is seen as a rural place but the majority of the region’s …
Factors The Cause Growth And Development In The City Of Lincoln, Ne, Kaylene Tegtmeier
Factors The Cause Growth And Development In The City Of Lincoln, Ne, Kaylene Tegtmeier
Department of Environmental Studies: Undergraduate Student Theses
This qualitative study looks at what factors may contribute to the outward growth and development of the city of Lincoln, Nebraska. The two main factors the study discusses are the Lincoln Public School planners and their placement of schools in the city, and the “American dream” of the people, looking at where the people of Lincoln want to be living throughout the city and what some of their daily habits are. This study also discusses some of the main visions of the city of Lincoln’s 2040 Comprehensive Plan how the plan’s ambitions may affect the two factors looked at in …
A Study On Facility Planning Using Discrete Event Simulation: Case Study Of A Grain Delivery Terminal., Sarah M. Asio
A Study On Facility Planning Using Discrete Event Simulation: Case Study Of A Grain Delivery Terminal., Sarah M. Asio
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
The application of traditional approaches to the design of efficient facilities can be tedious and time consuming when uncertainty and a number of constraints exist. Queuing models and mathematical programming techniques are not able to capture the complex interaction between resources, the environment and space constraints for dynamic stochastic processes. In the following study discrete event simulation is applied to the facility planning process for a grain delivery terminal. The discrete event simulation approach has been applied to studies such as capacity planning and facility layout for a gasoline station and evaluating the resource requirements for a manufacturing facility. To …
Multifunctional Rural Landscapes: Economic, Environmental, Policy, And Social Impacts Of Land Use Changes In Nebraska, Twyla M. Hansen, Charles A. Francis, J. Dixon Esseks, J. Allen Williams Jr.
Multifunctional Rural Landscapes: Economic, Environmental, Policy, And Social Impacts Of Land Use Changes In Nebraska, Twyla M. Hansen, Charles A. Francis, J. Dixon Esseks, J. Allen Williams Jr.
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
The conversion of farmland near cities to other human uses is a global trend that challenges our long-term capacity to provide food, fiber, and ecosystem services to a growing world population. If current trends continue in the United States, the population will reach 450 million by the year 2050. At the same time, an accelerating change in land use will reduce today’s two acres per person of farmland to less than one acre per person. This is scarcely enough to produce food for our domestic population, without any food available for export – even assuming advances in technology. We need …
Identifying Potential Conflict Associated With Oil And Gas Exploration In Texas State Coastal Waters: A Multi-Criteria Spatial Analysis, Samuel Brody, Himanshu Grover, Sarah Bernhardt, Zhenghong Tang, Bianca Whitaker, Colin Spence
Identifying Potential Conflict Associated With Oil And Gas Exploration In Texas State Coastal Waters: A Multi-Criteria Spatial Analysis, Samuel Brody, Himanshu Grover, Sarah Bernhardt, Zhenghong Tang, Bianca Whitaker, Colin Spence
Community and Regional Planning Program: Faculty Scholarly and Creative Activity
Recent interest in expanding offshore oil production within waters of the United States has been met with opposition by groups concerned with recreational, environmental, and aesthetic values associated with the coastal zone. Although the proposition of new oil platforms off the coast has generated conflict over how coastal resources should be utilized, little research has been conducted on where these user conflicts might be most intense and which sites might be most suitable for locating oil production facilities in light of the multiple, and often times, competing interests. In this article, we develop a multiple-criteria spatial decision support tool that …
Action Education In Land Use Decisions: Student Views On Urbanization And Farmland Loss, Mindi Schneider, Charles A. Francis, Dick Esseks
Action Education In Land Use Decisions: Student Views On Urbanization And Farmland Loss, Mindi Schneider, Charles A. Francis, Dick Esseks
CARI Extension and Education Materials for Sustainable Agriculture
Loss of prime farmland is a serious concern in the United States and around the globe. With rapid urban population increases, the activities and perceived needs of concentrated groups of people result in the swallowing of some of the most fertile lands in this country. Today we have just under 2 acres of productive farmland per person in the United States. Given the current population growth rate due to births and immigration, plus the present rate of farmland loss, World Watch Institute estimates that we will have about 0.6 acres or one-third as much farmland available per person by 2055--a …
Facing A Watershed: Managing Profitable And Sustainable Landscapes In The 21st Century, Heidi Carter, Richard Olson, Charles A. Francis
Facing A Watershed: Managing Profitable And Sustainable Landscapes In The 21st Century, Heidi Carter, Richard Olson, Charles A. Francis
CARI Extension and Education Materials for Sustainable Agriculture
Overview of Freshwater Use, Introduction to Watershed Management, and a Watershed Management Plan
Group Dynamics in Designing and Implementing a Watershed Management Plan
Information Sources for Watershed Management
Conservation Buffers and Riparian Management
Farmland Protection, Green Corridors, and Suburban Sprawl
Information Sources for Sustainable Agriculture and Sustainable Agriculture Education
Urban Geology—A Need And A Challenge, William J. Wayne
Urban Geology—A Need And A Challenge, William J. Wayne
Department of Earth and Atmospheric Sciences: Faculty Publications
Urban land uses are rapidly converting open land into intensively used land. Generally, in planning those uses, a comprehensive study has included everything except an evaluation of the land in three dimensions. Geologists are eminently well equipped to supply the missing data, but they must also be aware of the needs of the urban community and the kinds of information needed by planners if they are to write reports usable by planners. Urban and environmental geology is a newly expanding field in the use of geologic data to help solve some urban problems in the planning stage. It is likely …