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Articles 3481 - 3510 of 5892
Full-Text Articles in Entire DC Network
Wind Powering America: Fy09 Activities Summary, National Renewable Energy Laboratory
Wind Powering America: Fy09 Activities Summary, National Renewable Energy Laboratory
Publications (E)
The Wind Powering America FY09 Activities Summary reflects the accomplishments of state Wind Working Groups, WPA programs at the National Renewable Energy Laboratory, and partner organizations.
Green Initiatives, Paul Andricopulos, Ned Thomas
Green Initiatives, Paul Andricopulos, Ned Thomas
Publications (E)
City practices incorporating energy conservation methods.
Meta-Analysis As A Choice To Improve Research In Career And Technical Education, Howard Rd Gordon, Clifford R. Mcclain, Yeonsoo Kim, Cecilia Maldonado
Meta-Analysis As A Choice To Improve Research In Career And Technical Education, Howard Rd Gordon, Clifford R. Mcclain, Yeonsoo Kim, Cecilia Maldonado
Teaching and Learning Faculty Research
A search of the ERIC and Academic Search Premier data bases, and a comprehensive review of literature suggest that meta-analysis is ignored by career and technical education (CTE) researchers, a situation that is regrettable but remediable. The purpose of this theoretical paper is to provide CTE researchers and consumers with procedures for conducting meta-analytic research. The highlights presented include an overview of the history meta-analysis, selected meta-analysis procedures, and advantages of meta-analysis. The paper cautions that CTE consumers and policy makers should be aware of some of the limitations associated with meta-analysis. A key assertion of this paper is that …
Connecticut Transit (Cttransit) Fuel Cell Transit Bus: Third Evaluation Report And Appendices, K. Chandler, L. Eudy
Connecticut Transit (Cttransit) Fuel Cell Transit Bus: Third Evaluation Report And Appendices, K. Chandler, L. Eudy
Publications (T)
This report describes operations at Connecticut Transit (CTTRANSIT) in Hartford for one prototype fuel cell bus and three newer diesel buses operating from the same location. The prototype fuel cell bus was manufactured by Van Hool and ISE Corp. and features an electric hybrid drive system with a UTC Power PureMotion 120 Fuel Cell Power System and ZEBRA batteries for energy storage. The fuel cell bus started operation in April 2007, and evaluation results through October 2009 are provided in this report.
United Parcel Service Evaluates Hybrid Electric Delivery Vans, National Renewable Energy Laboratory
United Parcel Service Evaluates Hybrid Electric Delivery Vans, National Renewable Energy Laboratory
Publications (T)
This fact sheet describes how the National Renewable Energy Laboratory's Fleet Test and Evaluation team evaluated the 12-month, in-service performance of six Class 4 hybrid electric delivery vans - fueled by regular diesel - and six comparable conventional diesel vans operated by the United Parcel Service.
Hrc Enews — 2010 Winter, Megan K. Svarz
Hrc Enews — 2010 Winter, Megan K. Svarz
Publications (HRC)
This issue contains staff accomplishments and announcements, event listings, a "new faces" listing for new staff, affiliates, and researchers, and an "on the move" section listing new developments.
Evaluating And Regulating Lead In Artificial Turf, Gregory Van Ulirsch, Kevin Gleason, Shawn Gerstenberger, Deaphne B. Moffett, Glenn Pulliam, Tariq Ahmed, Jerald Fagliano
Evaluating And Regulating Lead In Artificial Turf, Gregory Van Ulirsch, Kevin Gleason, Shawn Gerstenberger, Deaphne B. Moffett, Glenn Pulliam, Tariq Ahmed, Jerald Fagliano
Environmental & Global Health Faculty Research
Background: In 2007, a synthetic turf recreational field in Newark, New Jersey, was closed because lead was found in synthetic turf fibers and in surface dust at concentrations exceeding hazard criteria. Consequently, public health professionals across the country began testing synthetic turf to determine whether it represented a lead hazard. Currently, no standardized methods exist to test for lead in synthetic turf or to assess lead hazards.
Objectives: Our objectives were to increase awareness of potential lead exposure from synthetic turf by presenting data showing elevated lead in fibers and turf-derived dust; identify risk assessment uncertainties; recommend that federal and/or …
Building America Research Benchmark Definition: Updated December 2009, R. Hendron, C. Engebrecht
Building America Research Benchmark Definition: Updated December 2009, R. Hendron, C. Engebrecht
Publications (SD)
To track progress toward aggressive multi-year, whole-house energy savings goals of 40%–70% and on-site power production of up to 30%, the U.S. Department of Energy (DOE) Residential Buildings Program and the National Renewable Energy Laboratory (NREL) developed the Building America (BA) Research Benchmark in consultation with the Building America industry teams. The Benchmark is generally consistent with mid-1990s standard practice, as reflected in the Home Energy Rating System (HERS) Technical Guidelines (RESNET 2002), with additional definitions that allow the analyst to evaluate all residential end uses, an extension of the traditional HERS rating approach that focuses on space conditioning and …
Sustainability Booklet, Paul Andricopulos, Ned Thomas
Sustainability Booklet, Paul Andricopulos, Ned Thomas
Publications (SD)
An online booklet highlighting the responsible efforts being made by the City of Henderson to foster a sustainable community.
Wind Power In Nevada, Hamedah Dhalai
Wind Power In Nevada, Hamedah Dhalai
Brookings Mountain West Publications
This bibliography compiles scholarly information and new reports on the topic of wind power in Nevada. As a senior at UNLV majoring in both Economics and French, I began this project in June 2010 in consultation with William E. Brown, Jr., director of planning and communications at Brookings Mountain West. This research topic interests me greatly, and I believe that expanded research and commercial development of alternative energy, including wind power, is essential to the growth and development of Nevada. My service as a Student Ambassador in the College of Business, a position that allows me to represent UNLV to …
Sulfur K-Edge Photo-Fragmentation Of Ethylene Sulfide, Wayne C. Stolte, Gunnar Ohrwall
Sulfur K-Edge Photo-Fragmentation Of Ethylene Sulfide, Wayne C. Stolte, Gunnar Ohrwall
Chemistry and Biochemistry Faculty Research
We have investigated the photofragmentation properties of the three-membered ring heterocyclic molecule ethylene sulfide or thiirane, C2H4S, by time-of-flight mass spectroscopy. Positive ions have been collected as a function of photon energy around the S K ionization threshold. Branching ratios were derived for all detected ions, which are informative of the decay dynamics and photofragmentation patterns of the core-excited species. We present a new assignment of the spectral features around the S K-edge.
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.
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.
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 …
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 …
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 …
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 …
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.
A Vector Matrix Real Time Backpropagation Algorithm For Recurrent Neural Networks That Approximate Multi-Valued Periodic Functions, Peter Stubberud
A Vector Matrix Real Time Backpropagation Algorithm For Recurrent Neural Networks That Approximate Multi-Valued Periodic Functions, Peter Stubberud
Electrical & Computer Engineering Faculty Research
Unlike feedforward neural networks (FFNN) which can act as universal function approximators, recursive, or recurrent, neural networks can act as universal approximators for multi-valued functions. In this paper, a real time recursive backpropagation (RTRBP) algorithm in a vector matrix form is developed for a two-layer globally recursive neural network that has multiple delays in its feedback path. This algorithm has been evaluated on two GRNNs that approximate both an analytic and nonanalytic periodic multi-valued function that a feedforward neural network is not capable of approximating.
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.
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.
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.
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.
A Naturalistic Inquiry Of The Restructuring Of A Middle School: An Nclb Mandate, Susan Ann Moulden
A Naturalistic Inquiry Of The Restructuring Of A Middle School: An Nclb Mandate, Susan Ann Moulden
UNLV Theses, Dissertations, Professional Papers, and Capstones
As the 2013-2014 school year approaches, more and more schools across the United States are finding it problematic to meet the annual measurable objective of 100 percent of the school's population meeting its adequate yearly progress (AYP) target, as prescribed by the federal No Child Left Behind (NCLB) legislation of 2002. Pursuant to NCLB, schools are required to meet the (defined) academic needs of all demographic populations within the school, and to ensure that all students are on grade level.
The purpose of this study was to explore first-hand the perceptions, insights and strategies comprising the implementation of a major …
Manganese Oxide Mineral Phases Produced At Room Temperature Under Acidic Conditions Investigated With Xrd, Tem, Sem, Eds, And Bet, Nancy R. Birkner
Manganese Oxide Mineral Phases Produced At Room Temperature Under Acidic Conditions Investigated With Xrd, Tem, Sem, Eds, And Bet, Nancy R. Birkner
UNLV Theses, Dissertations, Professional Papers, and Capstones
This thesis concerns characterization of synthetic manganese oxides belonging to mineral phases known as Birnessite and Cryptomelane. Presented here are the results of an experiment designed to examine the influence of sodium, potassium, chloride, and sulfate ions on the reduction of potassium permanganate under acidic conditions at room temperature to produce Birnessite and Cryptomelane. The experiments used KMnO4 as the source of Mn and the resulting Birnessite and Cryptomelane precipitates were washed with 18 Mn/cm NANOpure water at the end of syntheses. Several state-of-the-art solid state techniques were used to characterize the Mn-based oxide mineral phases. Based on the literature …
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 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.
Democracy And The Environment In Latin America, Javier Albert Escamilla
Democracy And The Environment In Latin America, Javier Albert Escamilla
UNLV Theses, Dissertations, Professional Papers, and Capstones
This study examines the ability of democratic and non-democratic states alike to protect the environment. Democracy has long been an important concept in the study of politics and environmental protection is an increasingly important issue in world politics. Advocates of democracy claim democratic states are better able to protect the environment than non-democracies. In contrast there are those that argue democracy's emphasis on individual rights leads to excessive resource consumption. This thesis employs a mixed methods approach to determine if democratic countries protect the environment more than their non-democratic counterparts. In short democracies do protect the environment better than non-democracies …
Interagency Outdoor Education Programming: Quarterly Progress Report: Period Ending November 30, 2009, Margaret N. Rees
Interagency Outdoor Education Programming: Quarterly Progress Report: Period Ending November 30, 2009, Margaret N. Rees
Reports (PLI Education)
Highlights of the university’s focused efforts during the past three months include the following:
- Evaluation results from the NEEI Certification program were presented at the North American Association for Environmental Education (NAAEE) National Conference on October 9, 2009.
- The Story of Gill graphic novel has been printed; a media release/bookstore signing is in the planning stages.
- A total of 60 people participated in Families in Nature events at Red Rock Canyon National Conservation Area and Winchester Cultural Center.
- Registration has opened for the Our Places Tell Stories Conference, February 24 -27, 2010.
- Forever Earth was scheduled for 33 days and …
A Fateful Year For Climate Change, William J. Antholis
A Fateful Year For Climate Change, William J. Antholis
Brookings Scholar Lecture Series
Since 1979, 20% of the polar ice cap has melted away. While the public is aware of climate change, the urgency to action is not there. Climate change is also an issue of national security, but enforcement of the the Kyoto and Copenhagen treaties is hampered.