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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

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At least 1,459 records · Page 81
All sourcesNASA NTRSDOE OSTI
DOE OSTI2013

Dose Assessment of LANL-Derived Residual Radionuclides in soils within Tract A-14 (Rendija Canyon) for Land Transfer Decisions

Rendija Canyon is located immediately north of the Los Alamos town site. The watershed has a drainage area of 9.5 mi 2 . The canyon head is on the flanks of the Sierra de los Valles just west of the town site at an elevation of 9826 ft. The canyon contains an ephemeral stream channel that extends approximately 9 mi east to the confluence with Guaje Canyon. The minimum elevation of the watershed is approximately 6300 ft (LANL 1997). Rendija Canyon primarily crosses US Forest Service (USFS) land except for approximately 1.6 mi of the middle portion of the canyon that crosses General Services Administration (GSA) land. Parcels of private land and Los Alamos County land, such as the Guaje Pines Cemetery, are located in Rendija Canyon along the north side of Los Alamos. One named tributary, Cabra Canyon, enters the Rendija Canyon channel from the north in the central portion of the watershed. Cabra Canyon trends northwest to southeast, is approximately 2 mi long, and has a watershed area of 1.2 mi 2 on USFS and GSA land. Three unnamed tributaries to Rendija Canyon are located west of Cabra Canyon and drain south-southeast into the main Rendija Canyon channel. These tributaries are approximately 1.5, 2.0, and 1.2 mi long (LANL 2001). Tributaries of Rendija Canyon and contain ephemeral streams. There are no effluent discharges (outfalls) in the Canyon. The watershed drains portions of Los Alamos town site, GSA land, and USFS land.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2012

100-N Area Decision Unit Target Analyte List Development for Soil

This report documents the process used to identify source area target analytes in support of the 100-N Area remedial investigation/feasibility study (RI/FS) addendum to the Integrated 100 Area Remedial Investigation/Feasibility Study Work Plan (DOE/RL-2008-46, Rev. 0).

100-N↗
DOE OSTI2013

Integration of Water Resource Models with Fayetteville Shale Decision Support and Information System

Significant issues can arise with the timing, location, and volume of surface water withdrawals associated with hydraulic fracturing of gas shale reservoirs as impacted watersheds may be sensitive, especially in drought years, during low flow periods, or during periods of the year when activities such as irrigation place additional demands on the surface supply of water. Significant energy production and associated water withdrawals may have a cumulative impact to watersheds over the short-term. Hence, hydraulic fracturing based on water withdrawal could potentially create shifts in the timing and magnitude of low or high flow events or change the magnitude of river flow at daily, monthly, seasonal, or yearly time scales. These changes in flow regimes can result in dramatically altered river systems. Currently little is known about the impact of fracturing on stream flow behavior. Within this context the objective of this study is to assess the impact of the hydraulic fracturing on the water balance of the Fayetteville Shale play area and examine the potential impacts of hydraulic fracturing on river flow regime at subbasin scale.

04 OIL SHALES AND TAR SANDS↗
DOE OSTI2014

Sampling and Analysis Plan (SAP) for Assessment of LANL-Derived Residual Radionuclides in Soils within Revised Tract A-16-a for Land Transfer Decisions

Material Disposal Area (MDA) B is an inactive subsurface disposal site located south of DP Road in Technical Area 21 (TA 21). It is approximately 1600 ft east of the intersection of DP Road and Trinity Drive (Figure 1). Land proposed for for transfer is identified as tract A-16-a and constitutes approximately 30 acres with about 6 of those acres being above the trench from which waste was removed (LANL 2012a).

61 RADIATION PROTECTION AND DOSIMETRY↗
DOE OSTI2014

Sampling and Analysis Plan (SAP) for Assessment of LANL-Derived Residual Radionuclides in soils within Tract A-5-2 for Land Transfer Decisions

The A-5-2 Tract is located just west of the eastern boundary of DP Mesa, Technical Area-21 (TA-21) and south of Highway 502 (Figure 1). This A-5-2 Tract is a revision of the original tract and now stops approximately at the northern boundary of the DP Canyon floodplain an extends from the A-10 tract downstream. The tract consists of the DP Canyon portion of the “Airport Tract” (DOE 1999). This tract contains undeveloped hillslope and canyon bottom accessed from DP Road. Vegetation includes ponderosa and piñon-juniper woodlands with open shrub, grasslands, and wildflower areas; A-5-2 is considered potentially sensitive wildlife habitat. DP Canyon has an ephemeral stream and receives runoff from surrounding mesas and areas.

61 RADIATION PROTECTION AND DOSIMETRY↗
DOE OSTI2014

Corrective Action Decision Document/Closure Report for Corrective Action Unit 571: Area 9 Yucca Flat Plutonium Dispersion Sites, Nevada National Security Site, Nevada, Revision 0 with ROTC 1

The purpose of this CADD/CR is to provide documentation and justification that no further corrective action is needed for the closure of CAU 571 based on the implementation of corrective actions. This includes a description of investigation activities, an evaluation of the data, and a description of corrective actions that were performed. The CAIP provides information relating to the scope and planning of the investigation. Therefore, that information will not be repeated in this document.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2014

Training Adaptive Decision-Making.

Adaptive Thinking has been defined here as the capacity to recognize when a course of action that may have previously been effective is no longer effective and there is need to adjust strategy. Research was undertaken with human test subjects to identify the factors that contribute to adaptive thinking. It was discovered that those most effective in settings that call for adaptive thinking tend to possess a superior capacity to quickly and effectively generate possible courses of action, as measured using the Category Generation test. Software developed for this research has been applied to develop capabilities enabling analysts to identify crucial factors that are predictive of outcomes in fore-on-force simulation exercises.

Abbott, Robert G.↗
DOE OSTI2014

Energy Signal Tool for Decision Support in Building Energy Systems

A prototype energy signal tool is demonstrated for operational whole-building and system-level energy use evaluation. The purpose of the tool is to give a summary of building energy use which allows a building operator to quickly distinguish normal and abnormal energy use. Toward that end, energy use status is displayed as a traffic light, which is a visual metaphor for energy use that is either substantially different from expected (red and yellow lights) or approximately the same as expected (green light). Which light to display for a given energy end use is determined by comparing expected to actual energy use. As expected, energy use is necessarily uncertain; we cannot choose the appropriate light with certainty. Instead, the energy signal tool chooses the light by minimizing the expected cost of displaying the wrong light. The expected energy use is represented by a probability distribution. Energy use is modeled by a low-order lumped parameter model. Uncertainty in energy use is quantified by a Monte Carlo exploration of the influence of model parameters on energy use. Distributions over model parameters are updated over time via Bayes' theorem. The simulation study was devised to assess whole-building energy signal accuracy in the presence of uncertainty and faults at the submetered level, which may lead to tradeoffs at the whole-building level that are not detectable without submetering.

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATI↗
DOE OSTI2014

To Own or Lease Solar: Understanding Commercial Retailers' Decisions to Use Alternative Financing Models

This report examines the tradeoffs among financing methods for businesses installing onsite photovoltaics (PV). We present case studies of PV financing strategies used by two large commercial retailers that have deployed substantial U.S. PV capacity: IKEA, which owns its PV, and Staples, which purchases power generated from onsite PV systems through power purchase agreements (PPAs). We also analyze the financial considerations that influence any company's choice of PV financing strategy. Our goal in this report is to clarify the financial and institutional costs and benefits of financing strategies and to inform other companies that are considering launching or expanding similar PV programs.

14 SOLAR ENERGY↗
DOE OSTI2013

Integrated Modeling and Decision-Support System for Water Management in the Puget Sound Basin: Snow Caps to White Caps

Final Report for the EPA-sponsored project Snow Caps to White Caps that provides data products and insight for water resource managers to support their predictions and management actions to address future changes in water resources (fresh and marine) in the Puget Sound basin. This report details the efforts of a team of scientists and engineers from Pacific Northwest National Laboratory (PNNL) and the University of Washington (UW) to examine the movement of water in the Snohomish Basin, within the watershed and the estuary, under present and future conditions, using a set of linked numerical models.

54 ENVIRONMENTAL SCIENCES↗
DOE OSTI2014

Phase I - Smart Grid Data Access Pilot Program: Utilizing STEM Education as a Catalyst for Residential Consumer Decision Making and Change

Under Phase I of the Smart Grid Data Access Pilot Program, the Gulf of Maine Research Institute (GMRI) partnered with Central Maine Power (CMP), and the Maine Mathematics and Science Alliance (MMSA) and engaged key vendors Tilson Government Services, LLC (Tilson), and Image Works to demonstrate the efficacy of PowerHouse, an interactive online learning environment linking middle school students with their home electricity consumption data provided through CMP’s Advanced Metering Infrastructure (AMI). The goal of the program is to harness the power of youth to alter home energy consumption behaviors using AMI data. Successful programs aimed at smoking cessation, recycling, and seat belt use have demonstrated the power of young people to influence household behaviors. In an era of increasing concern about energy costs, availability, and human impacts on global climate, GMRI sought to demonstrate the effectiveness of a student-focused approach to understanding and managing household energy use. We also sought to contribute to a solid foundation of science-literate students who can analyze evidence to find solutions to increasingly complex energy challenges.

29 ENERGY PLANNING, POLICY, AND ECONOMY↗