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Articles 1 - 30 of 879
Full-Text Articles in Physical Sciences and Mathematics
Nevada Interagency Volunteer Program: Helping Hands Across Public Lands – Phase Ii: Quarterly Progress Report, Period Covering October 1, 2009 To December 31, 2009, Margaret N. Rees
Get Outdoors Nevada
- The number of records in the volunteer database decreased by 14% over last quarter. The database now contains 5,996 records.
- Website activity increased, recording an average of 121,918 hits per month, an increase of 8% from last quarter, with an average of 9,686 pages viewed per month.
- Volunteer fall training has been completed.
- One hundred and twenty-seven people attended the Volunteer Recognition Event.
Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending December 31, 2009, Margaret N. Rees
Lake Mead National Recreation Area Monitoring And Evaluation Of Sensitive Wildlife: Quarterly Progress Report, Period Ending December 31, 2009, Margaret N. Rees
Wildlife Monitoring
Project 1. Relict Leopard Frog Monitoring, Management, and Research
- All milestones and deliverables are on schedule
- Fall surveys at all sites have been completed
- Mark-recapture surveys scheduled for fall were completed
- Short-term habitat improvements at two sites were conducted
- RLFCT meeting was hosted
- Draft annual report was written and presented at the RLFCT meeting
Project 2. Bald Eagle Winter Monitoring and Evaluation
- All milestones and deliverables are on schedule
- An annual project review presentation was given to Clark County
- A draft final report was written and submitted to Clark County
- All data for this project was transferred to the County …
Joint Fire Science Program – Lake Mead National Recreation Area Revegetating Burned Arid Lands: Identifying Successful Native Species Using Trait And Competition Analysis: Quarterly Progress Report, Time Period: October 1 — December 31, 2009, Margaret N. Rees
Fire Science
• Article accepted for publication in Journal of Arid Environments.
• Recharged irrigation gel packs for outplanting and watered seed plots at Goodsprings site.
• Completed full year of seed granivory trials at Goodsprings site.
• Presented information on this Task Agreement to 4th International Fire Ecology and Management Congress.
• Maintained nursery plots and added installment of nitrogen treatment.
Resolution For Education For Sustainability At Wku, Office Of Sustainability, Christian Ryan-Downing
Resolution For Education For Sustainability At Wku, Office Of Sustainability, Christian Ryan-Downing
Sustainability Publications and Resources
No abstract provided.
The 2009-2010 El Nino: Hydrologic Relief To U.S. Regions, Glenn A. Tootle, Thomas C. Piechota, Oubeidillah Aziz, William Paul Miller, Venkat Lakshmi, John A. Dracup, Carly Jerla
The 2009-2010 El Nino: Hydrologic Relief To U.S. Regions, Glenn A. Tootle, Thomas C. Piechota, Oubeidillah Aziz, William Paul Miller, Venkat Lakshmi, John A. Dracup, Carly Jerla
Civil and Environmental Engineering and Construction Faculty Research
Current forecasts by the U.S. National Oceanic and Atmospheric Administration (NOAA) are that the Pacific Ocean will experience El Niño conditions in late 2009 and into 2010. These forecasts are similar to past El Niño events in 1972–1973, 1982–1983, 1986–1987, and 2002–2003.
Evaluating the hydrologic conditions for these past El Niño events reveals that during these times, surface water supply conditions improved in many parts of the United States, including the Southeast, Midwest, and Southwest. At the same time, the Pacific Northwest and other specific regions of the United States experienced below-average water supply conditions. This is consistent with the …
The Effect Of Consumerism And Regulation On Household Solid Waste Management In The United States And Germany: A Comparative Study, Amir Vafa
School of Natural Resources: Dissertations, Theses, and Student Research
Private household recycling is a significant aspect of consumerism in economically developed countries and the inevitable question of household waste management has gained more importance among municipalities in recent years. The present study examined the effect of regulation on household solid waste management. Within a comparative, qualitative framework, the study explored and evaluated the pro-regulatory effects in Germany and the anti-regulatory policies in the United States by means of comparing two similar communities, Lincoln, Nebraska and Augsburg, Germany. By examining the present legislations, official documents, legal and operational procedures, and other relevant artifacts, laws, regulations and the degree of their …
The Ecological Advantages Of Nuclear Power, Fred P. Bosselman
The Ecological Advantages Of Nuclear Power, Fred P. Bosselman
All Faculty Scholarship
Major electric utilities are deciding whether to build nuclear power plants. How will their decision affect ecological processes and systems, both in the United States and globally? The article makes three arguments: (1) if nuclear power plants are not built, the gap will be filled by more coal-fired power plants; (2) the impact of coal-fired power plants on ecological processes and systems is likely to be increasingly disastrous; and (3) nuclear power’s ecological impacts are likely to be neutral or even positive.
Fractal Location And Anomalous Diffusion Dynamics For Oil Wells From The Ky Geological Survey, Keith Andrew, Karla M. Andrew, Kevin A. Andrew
Fractal Location And Anomalous Diffusion Dynamics For Oil Wells From The Ky Geological Survey, Keith Andrew, Karla M. Andrew, Kevin A. Andrew
Physics & Astronomy Faculty Publications
Utilizing data available from the Kentucky Geonet (KYGeonet.ky.gov) the fossil fuel mining locations created by the Kentucky Geological Survey geo-locating oil and gas wells are mapped using ESRI ArcGIS in Kentucky single plain 1602 ft projection. This data was then exported into a spreadsheet showing latitude and longitude for each point to be used for modeling at different scales to determine the fractal dimension of the set. Following the porosity and diffusivity studies of Tarafdar and Roy[1] we extract fractal dimensions of the fossil fuel mining locations and search for evidence of scaling laws for the set of deposits. The …
Solar Technology Innovation Meeting Summary, Solar Innovation And Technology Center
Solar Technology Innovation Meeting Summary, Solar Innovation And Technology Center
Meetings (SI)
On December 11, 2009, Senator Harry Reid and President Neal Smatresk (UNLV) conveyed a group of approximately 60 people (see attached lists) from the public and private sector to provide input on the structure, focus, and need for a Solar Innovation Technology Center. At this meeting, there were small group discussions followed by a larger group discussion on the needs in the areas of Workforce / Training, Marketing and Finance, Economic and Policy Making, Infrastructure and Manufacturing, Technology Transfer and Commercialization, and Research. The notes below summarize the major comments from the group. This represents individual comments and in other …
Nest And Brood Survival And Habitat Selection Of Ring-Necked Pheasants And Greater Prairie-Chickens In Nebraska, Ty Matthews
Nest And Brood Survival And Habitat Selection Of Ring-Necked Pheasants And Greater Prairie-Chickens In Nebraska, Ty Matthews
School of Natural Resources: Dissertations, Theses, and Student Research
Ring-Necked Pheasant (Phasianus colchicus) and Greater Prairie-chicken (Tympanuchus cupido pinnatus) populations have declined in the Midwest since the 1960’s. Research has suggested decreased nest and brood survival are the major causes of this decline due to the lack of suitable habitat. Habitat degradation has been attributed to the shift to larger crop fields, lower diversity of crops, and more intensive pesticide and herbicide use. A primary goal of the Conservation Reserve Program (CRP) is to mitigate the loss of wildlife habitat. Early research found that CRP increased the amount of suitable nesting and brood rearing cover …
Development Of The Mask Scentometer, A Comparison Of Ambient Odor Assessment Methods, And Their Application In Ground Truthing Atmospheric Dispersion Models, Christopher G. Henry
Development Of The Mask Scentometer, A Comparison Of Ambient Odor Assessment Methods, And Their Application In Ground Truthing Atmospheric Dispersion Models, Christopher G. Henry
Department of Agricultural and Biological Systems Engineering: Dissertations, Theses, and Student Research
This dissertation is organized as four stand-alone papers. Paper No. 1 describes the development of the Mask Scentometer and reports dilution ratios measured during use by twelve different people. Dilution ratios at the Mask Scentometer’s five dilution-to-threshold (D/T) settings were found to be 0.35, 1, 2, 4.5 and 18. In Paper No.’s 2 and 4, ambient odor assessment methods were compared in both controlled laboratory conditions and in the field. Laboratory analysis of ambient air samples using dynamic triangular forced-choice olfactometry (DTFCO) did not correlate well with any of the ambient odor assessment methods. Average intensity-predicted D/T was roughly five …
Interview With Jim Quinn, Metro's Hazardous Waste Program, 2009 (Audio), Jim Quinn
Interview With Jim Quinn, Metro's Hazardous Waste Program, 2009 (Audio), Jim Quinn
All Sustainability History Project Oral Histories
Interview of Jim Quinn by Sean Quigley at Metro in Portland, Oregon on December 2nd, 2009.
The interview index is available for download.
College Of Engineering Senior Design Competition Fall 2009, University Of Nevada, Las Vegas
College Of Engineering Senior Design Competition Fall 2009, University Of Nevada, Las Vegas
Fred and Harriet Cox Senior Design Competition Projects
Each student in his or her senior year chooses, plans, designs, and prototypes a product in this required element of the curriculum. The senior design project encourages the student to use everything learned in the engineering program to create a practical, real-world solution to an engineering challenge.
A highlight of the year-long senior design project is the senior design competition. This competition, which usually takes place the week before finals each semester, helps focus the senior students on increasing the quality and potential for commercial application for their design projects.
Judges from local industry evaluate the projects on innovation, commercial …
Satellite-Based Estimation Of Chlorophyll-A Concentration In Turbid Productive Waters, Wesley Moses
Satellite-Based Estimation Of Chlorophyll-A Concentration In Turbid Productive Waters, Wesley Moses
School of Natural Resources: Dissertations, Theses, and Student Research
Inland, coastal, and estuarine waters, which are often turbid and biologically productive, play a crucial role in maintaining global bio-diversity and are of immense value to aquatic life as well as human-beings. Concentration of chlorophyll-a (chl-a) is a key indicator of the trophic status of these waters, which should be regularly monitored to ensure that their ecological balance is not disturbed. Remote sensing is a powerful tool for this.
Due to the optical complexity of turbid productive waters, standard algorithms that use blue and green reflectances are unreliable for estimating chl-a concentration. Algorithms based on red and near-infrared (NIR) reflectances …
Evaporation Estimation Of Rift Valley Lakes: Comparison Of Models, Assefa M. Melesse, Wossenu Abtew, Tibebe Dessalegne
Evaporation Estimation Of Rift Valley Lakes: Comparison Of Models, Assefa M. Melesse, Wossenu Abtew, Tibebe Dessalegne
Department of Earth and Environment
Evapotranspiration (ET) accounts for a substantial amount of the water flux in the arid and semi-arid regions of the World. Accurate estimation of ET has been a challenge for hydrologists, mainly because of the spatiotemporal variability of the environmental and physical parameters governing the latent heat flux. In addition, most available ET models depend on intensive meteorological information for ET estimation. Such data are not available at the desired spatial and temporal scales in less developed and remote parts of the world. This limitation has necessitated the development of simple models that are less data intensive and provide ET estimates …
Sfa Weather Station-December 2009, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University
Sfa Weather Station-December 2009, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University
Weather Station Data
No abstract provided.
Carbon Finance Ii: Investing In Forests For Climate Protection, Jamie Carlson, Bryan Garcia, Claire Jahns, Eric Roberts, Katie Schindall
Carbon Finance Ii: Investing In Forests For Climate Protection, Jamie Carlson, Bryan Garcia, Claire Jahns, Eric Roberts, Katie Schindall
Yale School of the Environment Publications Series
Carbon Finance II: Investing in Forests for Climate Protection is a collection of lectures given during the 2008-2009 Carbon Finance Speaker Series at the Yale School of Forestry & Environmental Studies. The annual series is hosted by the Center for Business and the Environment at Yale and supported by the Emily Hall Tremaine Foundation and the Henry P. Kendall Foundation. The 2008-2009 speaker series focused on forest carbon and the opportunities and obstacles to including forests in greenhouse gas emission reduction policies, carbon markets, and cap-and-trade systems.
Solar Ready Buildings Planning Guide, L. Lisell, T. Tetreault, A. Watson
Solar Ready Buildings Planning Guide, L. Lisell, T. Tetreault, A. Watson
Publications (E)
This document identifies the important aspects of building design and construction to enable installation of solar photovoltaic and heating systems at some time after the building is constructed. This document addresses photovoltaic (PV), solar hot water (ST), and solar ventilation preheat (SVP) systems.
Reflective Optics Cpv Panels Enabling Large Scale, Reliable Generation Of Solar Energy Cost Competitive With Fossil Fuels, S. Horne, M. Mcdonald, N. Hartsoch, K. Desy
Reflective Optics Cpv Panels Enabling Large Scale, Reliable Generation Of Solar Energy Cost Competitive With Fossil Fuels, S. Horne, M. Mcdonald, N. Hartsoch, K. Desy
Publications (E)
The objective of this 18 month subcontract was the improvement of reflective optics CPV panels to enable the large-scale, reliable production of solar electricity to meet SAI-established LCOE targets, and ultimately provide a path to solar power at parity with or better than the cost of energy generated utilizing fossil fuels. To this end, SolFocus has completed this subcontract with great success as evidenced by the end results of a CPV panel with conversion efficiencies greater than the targeted 22% and manufacturing capabilities with a run rate capacity far exceeding the milestone benchmark >3MW.
Wind Energy And Power System Operations: A Review Of Wind Integration Studies To Date, Jennifer Decesaro, Kevin Porter
Wind Energy And Power System Operations: A Review Of Wind Integration Studies To Date, Jennifer Decesaro, Kevin Porter
Publications (E)
This paper provides an overview of the challenges associated with wind integration and summarizes the findings of the wind integration studies conducted over the course of the past five years. We begin with an overview of the approximate time frames used in grid operations. We then describe how wind integration studies are conducted, discuss the results on wind integration costs and grid impacts from these grid integration studies, and assess some of the grid planning and operation changes that may be necessary to incorporate higher levels of wind generation. We close with several conclusions.
Economic Investigation Of Community-Scale Versus Building Scale Net-Zero Energy, N. Fernandez, S. Katipamula, M. R. Brambley, T. A. Reddy
Economic Investigation Of Community-Scale Versus Building Scale Net-Zero Energy, N. Fernandez, S. Katipamula, M. R. Brambley, T. A. Reddy
Publications (E)
The study presented in this report examines issues concerning whether achieving net-zero energy performance at the community scale provides economic and potentially overall efficiency advantages over strategies focused on individual buildings.
Wind Energy Assessment Study For Nevada -- Tall Tower Deployment (Stone Cabin), Darko Koracin, R. Reinhardt, Gregory D. Mccurdy, Marshall Liddle, Travis E. Mccord, Ramesh Vellore, Timothy B. Minor, Bradley F. Lyles, D. Miller, Lycia M. Ronchetti
Wind Energy Assessment Study For Nevada -- Tall Tower Deployment (Stone Cabin), Darko Koracin, R. Reinhardt, Gregory D. Mccurdy, Marshall Liddle, Travis E. Mccord, Ramesh Vellore, Timothy B. Minor, Bradley F. Lyles, D. Miller, Lycia M. Ronchetti
Publications (E)
The objective of this work effort was to characterize wind shear and turbulence for representative wind-developable areas in Nevada.
Biodiesel Handling And Use Guide: Fourth Edition (Revised), National Renewable Energy Laboratory
Biodiesel Handling And Use Guide: Fourth Edition (Revised), National Renewable Energy Laboratory
Publications (T)
This document is a guide for those who blend, store, distribute, and use biodiesel and biodiesel blends. It provides basic information on the proper and safe use of biodiesel and biodiesel blends in compression-ignition engines and boilers, and it is intended to help fleets, individual users, blenders, distributors, and those involved in related activities understand procedures for handling and using biodiesel fuels.
New American Home 2010: Las Vegas, Nevada, Building Technologies Program, National Renewable Energy Laboratory
New American Home 2010: Las Vegas, Nevada, Building Technologies Program, National Renewable Energy Laboratory
Publications (SD)
This brochure details the New American Home 2010, which demonstrates the use of innovative building materials, cutting-edge design, and the latest construction techniques.
Wku Campus Wide Holiday Energy Conservation Plan, Wku Sustainability Committee, Christian Ryan-Downing
Wku Campus Wide Holiday Energy Conservation Plan, Wku Sustainability Committee, Christian Ryan-Downing
Sustainability Publications and Resources
No abstract provided.
Water Resources Year In Review - Winter 2009 Vol 21. No 2, Annis Water Resources Institute
Water Resources Year In Review - Winter 2009 Vol 21. No 2, Annis Water Resources Institute
AWRI Reviews
No abstract provided.
Review Of The Evidence Used In The Description Of Currently Recognized Cetacean Subspecies, William F. Perrin, James G. Mead, Robert L. Brownell Jr.
Review Of The Evidence Used In The Description Of Currently Recognized Cetacean Subspecies, William F. Perrin, James G. Mead, Robert L. Brownell Jr.
United States Department of Commerce: Staff Publications
We reviewed the subspecies listed by Rice (1998) and those described since (a total of 49, in 19 species), assessing them against the criteria recommended by the recent Workshop on Shortcomings of Cetacean Taxonomy in Relation to Needs of Conservation and Management (Reeves et al., 2004). The workshop suggested that the subspecies concept can be construed to cover two types of entities: a) lineages diverging but not quite far along the continuum of divergence (still having significant gene flow with another lineage or lineages) to be judged as species, and b) lineages that may well be species but for which …
Can Pastoral Linkages To Livestock Markets Be Sustained In Southern Ethiopia?, D. Layne Coppock, Getachew Gebru, Solomon Desta, Seyoum Tezera, Zewdu Edea
Can Pastoral Linkages To Livestock Markets Be Sustained In Southern Ethiopia?, D. Layne Coppock, Getachew Gebru, Solomon Desta, Seyoum Tezera, Zewdu Edea
Environment and Society Faculty Publications
The PARIMA project has facilitated collective action, empowerment of women, and increased involvement in livestock marketing among pastoralists on the Borana Plateau since 2001. Fifty-nine collective-action groups formed by PARIMA and her partners have been recently merged into market-oriented cooperatives, consistent with government policy. We used focus groups and participatory appraisals to assess the extent that market linkages have been sustained since previously reported in 2006. The markets have been growing, but are volatile. Members report they need access to early warning and livestock market-information systems, as well as more capital, to promote trade. Export firms have imposed added conditions …
Costs Of Implementing Collective Action And Capacity Building Among Pastoralists In Southern Ethiopia, D. Layne Coppock, Seyoum Tezera, Solomon Desta
Costs Of Implementing Collective Action And Capacity Building Among Pastoralists In Southern Ethiopia, D. Layne Coppock, Seyoum Tezera, Solomon Desta
Environment and Society Faculty Publications
Since 2000, the PARIMA project has implemented risk-management activities among semi-settled pastoralists in southern Ethiopia. The goal has been to improve human welfare via collective action and capacity building. Outcomes include progress in income generation, asset conservation, and livelihood diversification. Fifty-nine collective-action groups were created. Dominated by women, they included over 2,000 founding members and groups have recently merged to form 37 cooperatives, consistent with government policy. Creating sustainable impacts via collective action and capacity building requires many inputs. Taking raw, illiterate volunteers and transforming them into sustainable groups took up to three years, on average. Costs of implementing this …
Using Conservative And Biological Tracers To Better Understand The Transport Of Agricultural Contaminants From Soil Water Through The Epikarstic Zone, Brian Ham
Masters Theses & Specialist Projects
Agriculture contamination is very common in karst systems due to the vulnerability of these aquifers. Animal waste is often spread across crop land to enrich the soil with nitrates and phosphates. Herbicides and pesticides are also applied to the crops. The transport of these pollutants through the soil and epikarst is a difficult process to monitor due to the complex, heterogeneous behavior of the groundwater as it makes its way down to the aquifer below.
An experimental site at Crumps Cave lended a unique opportunity to monitor the vadose zone at a waterfall in the cave below. A previous dye …