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Near Term Hybrid Passenger Vehicle Development Program. Phase I, Final report. Appendix D: sensitivity analysis

Description: This report on the Sensitivity of Mission Analysis and Trade-off Studies provides an analysis of the sensitivity of the results of previous mission analysis and performance specification studies to the possible variations of the values of significant parameters as projected to the year 1985. These parameters include vehicle usage by purpose, driving cycles, trip lengths, ownership projections, and life-cycle costs. Tabulated data are included from calculations with variations in these parameter… more
Date: July 3, 1979
Creator: Traversi, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New Mexico's energy resources '81. Annual report of Bureau of Geology in the Mining and Minerals Division of New Mexico Energy and Minerals Department

Description: Although production of U/sub 3/O/sub 8/ declined only slightly in 1980, New Mexico's share of domestic production has declined from 48% in 1976 to 35% in 1980. Production projections indicate a continued decline in 1981 and lower production until at least 1984. New Mexico has 41% of total domestic reserves producible in the $50-per-lb cost category. In keeping with the anticipated steady depletion of reserves, production of crude oil in New Mexico was 69.9 million bls, a 6.3% decline in product… more
Date: September 3, 1981
Creator: Arnold, E. C. & Hill, J. M. (comps.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Development and Testing of a Life Cycle Model and a Parameterization of Thin Mid-level Stratiform Clouds

Description: We used a cloud-resolving model (a detailed computer model of cloud systems) to evaluate and improve the representation of clouds in global atmospheric models used for numerical weather prediction and climate modeling. We also used observations of the atmospheric state, including clouds, made at DOE's Atmospheric Radiation Measurement (ARM) Program's Climate Research Facility located in the Southern Great Plains (Kansas and Oklahoma) during Intensive Observation Periods to evaluate our detailed… more
Date: March 3, 2008
Creator: Krueger, Steven K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PREDICTION OF SURFACE SETTLEMENT DUE TO THE DISPLACEMENT OF SOFT ZONES

Description: In areas composed of coastal plain sediments, soft zones subjected to partial overburden may be present in the subsurface. During or after a seismic event, these soft zones may be compressed. The resulting displacement due to the deformation of the soft zones will propagate to the ground surface and cause the surface to settle. This paper presents a method to predict the settlement at the surface due to the propagation of the displacement from the soft zones. This method is performed by discret… more
Date: March 3, 2008
Creator: Li, W
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Development and Integration of Single-Asperity Nanotribology Experiments & Nanoscale Interface Finite Element Modeling for Prediction and Control of Friction and Damage in Micro- and Nano-mechnical Systems

Description: This report describes the accomplishments of the DOE BES grant entitled "Development and Integration of Single-Asperity Nanotribology Experiments & Nanoscale Interface Finite Element Modeling for Prediction and Control of Friction and Damage in Micro- and Nano-mechnical Systems". Key results are: the determination of nanoscale frictional properties of MEMS surfaces, self-assembled monolayers, and novel carbon-based films, as well as the development of models to describe this behavior.
Date: March 3, 2007
Creator: Carpick, R. W. & Plesha, M. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analyticity and the Holographic S-Matrix

Description: We derive a simple relation between the Mellin amplitude for AdS/CFT correlation functions and the bulk S-Matrix in the flat spacetime limit, proving a conjecture of Penedones. As a consequence of the Operator Product Expansion, the Mellin amplitude for any unitary CFT must be a meromorphic function with simple poles on the real axis. This provides a powerful and suggestive handle on the locality vis-a-vis analyticity properties of the S-Matrix. We begin to explore analyticity by showing how th… more
Date: April 3, 2012
Creator: Fitzpatrick, A.Liam; /Stanford U., Phys. Dept. & Kaplan, Jared
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

STUDY OF THERMAL SENSITIVITY AND THERMAL EXPLOSION VIOLENCE OF ENERGETIC MATERIALS IN THE LLNL ODTX SYSTEM

Description: Some energetic materials may explode at fairly low temperatures and the violence from thermal explosion may cause a significant damage. Thus it is important to understand the response of energetic materials to thermal insults for safe handling and storage of energetic materials. The One Dimensional Time to Explosion (ODTX) system at the Lawrence Livermore National Laboratory can measure times to explosion, lowest explosion temperatures, and determine kinetic parameters of energetic materials. S… more
Date: August 3, 2011
Creator: HSU, P C; Hust, G; May, C; Howard, M; Chidester, S K; Springer, H K et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A Domino Theory of Flavor

Description: We argue that the fermion masses and mixings are organized in a specific pattern. The approximately equal hierarchies between successive generations, the sizes of the mixing angles, the heaviness of just the top quark, and the approximate down-lepton equality can all be accommodated by many flavor models but can appear ad hoc. We present a simple, predictive mechanism to explain these patterns. All generations are treated democratically and the flavor symmetries are broken collectively by only … more
Date: August 3, 2009
Creator: Graham, Peter W. & Rajendran, Surjeet
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Multi-path transportation futures study : vehicle characterization and scenario analyses.

Description: Projecting the future role of advanced drivetrains and fuels in the light vehicle market is inherently difficult, given the uncertainty (and likely volatility) of future oil prices, inadequate understanding of likely consumer response to new technologies, the relative infancy of several important new technologies with inevitable future changes in their performance and costs, and the importance - and uncertainty - of future government marketplace interventions (e.g., new regulatory standards or … more
Date: December 3, 2009
Creator: Plotkin, S. E.; Singh, M. K.; Systems, Energy; Engineering, TA & ORNL
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MODELING TRITIUM TRANSPORT, DEPOSITION AND RE-EMISSION

Description: The atmospheric release of tritium oxide (HTO) potentially impacts human health, typically through inhalation or absorption. Due to HTO's similarity to water, vegetation will absorb HTO by solution in the leaf water and then re-emit it, creating a number of secondary sources of HTO. Currently, models used for emergency response at Savannah River Site incorporate the transport and deposition of HTO but do not provide estimates for its potential re-emission from vegetation or soil surface though … more
Date: April 3, 2012
Creator: Viner, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Unsupervised Group Discovery and LInk Prediction in Relational Datasets: a nonparametric Bayesian approach

Description: Clustering represents one of the most common statistical procedures and a standard tool for pattern discovery and dimension reduction. Most often the objects to be clustered are described by a set of measurements or observables e.g. the coordinates of the vectors, the attributes of people. In a lot of cases however the available observations appear in the form of links or connections (e.g. communication or transaction networks). This data contains valuable information that can in general be exp… more
Date: May 3, 2007
Creator: Koutsourelakis, P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Genome-wide de Novo Prediction of Proximal and Distal Tissue-Specific Enhancers

Description: Determining how transcriptional regulatory networks are encoded in the human genome is essential for understanding how cellular processes are directed. Here, we present a novel approach for systematically predicting tissue specific regulatory elements (REs) that blends genome-wide expression profiling, vertebrate genome comparisons, and pattern analysis of transcription factor binding sites. This analysis yields 4,670 candidate REs in the human genome with distinct tissue specificities, the maj… more
Date: November 3, 2005
Creator: Loots, G G & Ovcharenko, I V
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Thermal Modeling Tool for a Spherical Capsule in a Sputtering Chamber

Description: It is known that a film's temperature during a sputtering process greatly influences its mechanical structure. Currently, there is no known tool to effectively model the temperature history of a sputtered film on a spherical capsule in a sputtering chamber. Therefore, a tool has been developed that allows for the prediction of this temperature history using a lumped capacitance approximation for the capsule. This tool has been developed as part of LLNL's Diablo II multi-mechanics code to allow … more
Date: February 3, 2006
Creator: Wemhoff, A P
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Implementation and assessment of turbine wake models in the Weather Research and Forecasting model for both mesoscale and large-eddy simulation

Description: Flow dynamics in large wind projects are influenced by the turbines located within. The turbine wakes, regions characterized by lower wind speeds and higher levels of turbulence than the surrounding free stream flow, can extend several rotor diameters downstream, and may meander and widen with increasing distance from the turbine. Turbine wakes can also reduce the power generated by downstream turbines and accelerate fatigue and damage to turbine components. An improved understanding of wake fo… more
Date: March 3, 2010
Creator: Singer, M; Mirocha, J; Lundquist, J & Cleve, J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Air Emission Projections During Acid Cleaning of F-Canyon Waste Header No.2

Description: The purpose of this study was to develop the air emission projections for the maintenance operation to dissolve and flush out the scale material inside the F-Canyon Waste Header No.2. The chemical agent used for the dissolution is a concentrated nitric acid solution, so the pollutant of concern is the nitric acid vapor. Under the very conservative operating scenarios considered in this study, it was determined that the highest possible rate of nitric acid emission during the acid flush would be… more
Date: March 3, 2004
Creator: CHOI, ALEXANDER
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Future Climate Analysis

Description: This report documents an analysis that was performed to estimate climatic variables for the next 10,000 years by forecasting the timing and nature of climate change at Yucca Mountain, Nevada, the site of a repository for spent nuclear fuel and high-level radioactive waste. The future-climate estimates are based on an analysis of past-climate data from analog meteorological stations, and this report provides the rationale for the selection of these analog stations. The stations selected provide … more
Date: September 3, 2004
Creator: Cambell, C. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Problem Assessment for a Formal Decision on the Future of the 244-S Double Contained Receiver Tank (DCRT)

Description: This document describes the background, concerns, and issues associated with continued use of the 244-S DCRT. A problem statement is defined such that management may in the future make a decision about the preferred path forward on this DCRT. Influences and potential answers are outlined and presented such that costs, waste volume projections, projects (such as W-314), and other facilities (such as 222-S and PFP) are accurately represented.
Date: April 3, 2000
Creator: SEDERBURG, J.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of the vaporization barrier above waste emplacement drifts

Description: Prediction of the amount of water that may seep into the waste emplacement drifts is an important aspect of assessing the performance of the proposed geologic nuclear waste repository at Yucca Mountain, Nevada. The repository is to be located in thick, partially saturated fractured tuff that will be heated to above-boiling temperatures as a result of heat generation from the decay of nuclear waste. Since water percolating down towards the repository will be subject to vigorous boiling for a sig… more
Date: February 3, 2003
Creator: Birkholzer, Jens; Mukhopadhyay, Sumit & Tsang, Yvonne
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Conceptual Software Reliability Prediction Models for Nuclear Power Plant Safety Systems

Description: The objective of this project is to develop a method to predict the potential reliability of software to be used in a digital system instrumentation and control system. The reliability prediction is to make use of existing measures of software reliability such as those described in IEEE Std 982 and 982.2. This prediction must be of sufficient accuracy to provide a value for uncertainty that could be used in a nuclear power plant probabilistic risk assessment (PRA). For the purposes of the proje… more
Date: April 3, 2000
Creator: Johnson, G.; Lawrence, D. & Yu, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Y-12 Integrated Materials Management System

Description: The Integrated Materials Management System, when fully implemented, will provide the Y-12 National Security Complex with advanced inventory information and analysis capabilities and enable effective assessment, forecasting and management of nuclear materials, critical non-nuclear materials, and certified supplies. These capabilities will facilitate future Y-12 stockpile management work, enhance interfaces to existing National Nuclear Security Administration (NNSA) corporate-level information sy… more
Date: June 3, 2002
Creator: Alspaugh, D. H. & Hickerson, T. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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