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Articles 1 - 7 of 7
Full-Text Articles in Sustainability
Keynote Address: Community Health In Las Vegas, Camila H. Alvarez
Keynote Address: Community Health In Las Vegas, Camila H. Alvarez
Festival of Communities: UG Symposium (Posters)
New Urbanists present both a theory for strong community development and an architectural planning program for moving towards sustainable urban environments. They argue neighborhoods should be compact, pedestrian-friendly, with mixed-usage of housing and activities, and available public spaces. These design elements foster and encourage social interaction among residents which creates and enforces neighborhood community. I tested New Urbanism Theory by performing ethnographic fieldwork to assess the quality of neighborhoods in Las Vegas. Then I compared neighborhood qualities to residents’ responses to their neighborhood, neighbors, and quality of life from the Las Vegas Metropolitan Area Social Survey. My results confirmed New …
Exploring The Potential Of Agave As A Biofuel Crop On Arid Land, Rhea Conlu, Diana Ha, Jeffery Shen
Exploring The Potential Of Agave As A Biofuel Crop On Arid Land, Rhea Conlu, Diana Ha, Jeffery Shen
Festival of Communities: UG Symposium (Posters)
Worldwide awareness of global warming and depleting fossil fuel sources has made research into alternative resources, such as plant fuels imperative. Since groundwater irrigation is unsustainable, especially in desert climates, plants that are drought resistant or can utilize otherwise unusable water are more viable sources of future biofuel production. Agave nevadensis, a species belonging to the family Agavaceae are succulent plants native to Las Vegas. This experiment aims to expose A. nevadensis to both wastewater and drought conditions and observe its response. The results can help define Agave as a water-resourceful biofuel both tolerant of drought and capable of utilizing …
Sustainable Alternative To Non-Biological Nitrogen Fixation To Nitrate For Fertilizers, Patrick Freeze, Glenn Miller
Sustainable Alternative To Non-Biological Nitrogen Fixation To Nitrate For Fertilizers, Patrick Freeze, Glenn Miller
Festival of Communities: UG Symposium (Posters)
Currently, the industrial method of nitrogen fixation for use in fertilizers (Haber- Bosch process [N2 (g) + 3 H2 (g) <--> 2 NH3 (g)]) is our main source of non-biological conversion of atmospheric nitrogen to ammonia. The proposed research experiment utilizes the catalytic mechanism of titanium dioxide which, in the presence of heat or sunlight, undergoes fixation of atmospheric nitrogen. This method of nitrate production could serve as a sustainable source of nitrogen for fertilizers. Variables in the experiment included the manipulation of thermal pressure, heat, and base addition to counteract hydrochloric acid production, a selflimiting byproduct.
Global Warming: At What Point Does Atmospheric Greenhouse Gas Release Become Unethical?, Luke Good, Gladys Lopez
Global Warming: At What Point Does Atmospheric Greenhouse Gas Release Become Unethical?, Luke Good, Gladys Lopez
Festival of Communities: UG Symposium (Posters)
In recent decades, the concept of global warming has developed increasing concern among the scientific community and general public alike. What was initially dismissed as little more than unlikely has now become a severe warning for global climate crisis threatening not only our way of life but ultimate future existence on this planet? Global warming is defined as the steady mean increase in atmospheric temperature, the primary asserted cause thereof being increased emissions and inherent atmospheric concentrations of “greenhouse gases” – carbon dioxide in particular. These gases contribute to the greenhouse effect by trapping radiation (from the sun) in the …
Groundwater: Solution To The Las Vegas Water Problem?, Rosa Perez, Christopher Ruiz
Groundwater: Solution To The Las Vegas Water Problem?, Rosa Perez, Christopher Ruiz
Festival of Communities: UG Symposium (Posters)
A contentious debate is taking place in different sectors of the community on how to manage the states groundwater system. It is a battle whose outcome, regardless of who wins, will have a tremendous impact on the future of Las Vegas. Economic benefits always seem to downplay environmental considerations in the policy-making process often with serious consequences. This paper takes a look at the SNWAʼs Groundwater Development Project and provides a discussion of the issues for and against it. Groundwater is inexpensive, relatively abundant and accessible. However, over-pumping of groundwater can have significant environmental consequences, as well. It is our …
Thin-Film Fabrication For High Pressure Thermoelectric And Electrical Resistivity Studies, Jorge L. Reynaga, Rama Venkat, Ravhi S. Kumar
Thin-Film Fabrication For High Pressure Thermoelectric And Electrical Resistivity Studies, Jorge L. Reynaga, Rama Venkat, Ravhi S. Kumar
Festival of Communities: UG Symposium (Posters)
Thermoelectric materials are of interest for application such as thermoelectric cooler in microprocessors and power generators in cars. High pressure plays an important role in understanding the changes in the figure of merit of thermoelectric thin films. To study the thermoelectric thin films a direct approach is to fabricate the thin film on the surface of a diamond anvil, so that the pressure dependence of structure and transport properties can be investigated easily. If we could successfully fabricate the electrical probes by depositing thin films, then it reduces the use of electrical wires as probes inside the diamond cell, as …
Energy Densification Via Hydrothermal Carbonization, Keri Noack
Energy Densification Via Hydrothermal Carbonization, Keri Noack
Festival of Communities: UG Symposium (Posters)
A process called hydrothermal carbonization (HTC), also known as wet torrefaction involves treatment of raw biomass in hot, pressurized water. HTC of woody biomass has been shown to significantly increase the energy density of the feedstock, producing a biochar, similar to coal, having up to 40% higher calorific energy content. Feedstocks investigated include Tahoe chips, Pinion/Juniper chips, Rice hulls, and Corn Stover pellets pre-treated at 215 °C, 255 °C, and 295 °C. Chemical analyses were conducted on the gaseous, aqueous, and solid HTC products. Energy contents of the solid biochar products were measured by calorimetry, and mass balances were determined.