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Estimating Filtering Errors Using the Peano Kernel Theorem

Description: The Peano Kernel Theorem is introduced and a frequency domain derivation is given. It is demonstrated that the application of this theorem yields simple and accurate formulas for estimating the error introduced into a signal by filtering it to reduce noise.
Date: February 20, 2009
Creator: Blair, Jerome
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

On Graphical Representation of Stability Criteria - Summary

Description: This paper compares various approaches to stability analysis of linear (and of linearized) circuits. In particular it clarifies the limits of application of a widely used but generally erroneous method. It also compares the criteria formulated in terms of impedances versus those expressed in S-parameters.
Date: June 20, 2008
Creator: Odyniec, Michal
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Nevada Test Site-Directed Research and Development, FY 2007 Report

Description: The Nevada Test Site-Directed Research and Development (SDRD) program completed a very successful year of research and development activities in FY 2007. Twenty-nine new projects were selected for funding this year, and eight projects started in FY 2006 were brought to conclusion. The total funds expended by the SDRD program were $5.67 million, for an average per-project cost of $153 thousand. An external audit conducted in September 2007 verified that appropriate accounting practices were appl… more
Date: February 20, 2008
Creator: Wil Lewis, editor
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MMA, A Computer Code for Multi-Model Analysis

Description: This report documents the Multi-Model Analysis (MMA) computer code. MMA can be used to evaluate results from alternative models of a single system using the same set of observations for all models. As long as the observations, the observation weighting, and system being represented are the same, the models can differ in nearly any way imaginable. For example, they may include different processes, different simulation software, different temporal definitions (for example, steady-state and transi… more
Date: August 20, 2007
Creator: Hill, Eileen P. Poeter and Mary C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using a Borated Panel to Form a Dual Neutron-Gamma Detector

Description: A borated polyethylene plane placed between a neutron source and a gamma spectrometer is used to form a dual neutron-gamma detection system. The polyethylene thermalizes the source neutrons so that they are captured by {sup 10}B to produce a flux of 478 keV gamma-rays that radiate from the plane. This results in a buildup of count rate in the detector over that from a disk of the same diameter as the detector crystal (same thickness as the panel). Radiation portal systems are a potential applic… more
Date: June 20, 2008
Creator: Wilde, Scott & Keegan, Raymond
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evapotranspiration Cover for the 92-Acre Area Retired Mixed Waste Pits:Interim CQA Report

Description: This Interim Construction Quality Assurance (CQA) Report is for the 92-Acre Evapotranspiration Cover, Area 5 Waste Management Division (WMD) Retired Mixed Waste Pits, Nevada National Security Site, Nevada for the period of January 20, 2011 to May 12, 2011. This Interim Construction Quality Assurance (CQA) Report is for the 92-Acre Evapotranspiration Cover, Area 5 Waste Management Division (WMD) Retired Mixed Waste Pits, Nevada National Security Site, Nevada for the period of January 20, 2011 to… more
Date: June 20, 2011
Creator: The Delphi Groupe, Inc., and J. A. Cesare and Associates, Inc.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Lightning Arrestor Connectors Production Readiness

Description: The Lightning Arrestor Connector (LAC), part “M”, presented opportunities to improve the processes used to fabricate LACs. The A## LACs were the first production LACs produced at the KCP, after the product was transferred from Pinnellas. The new LAC relied on the lessons learned from the A## LACs; however, additional improvements were needed to meet the required budget, yield, and schedule requirements. Improvement projects completed since 2001 include Hermetic Connector Sealing Improvement, Co… more
Date: October 20, 2008
Creator: Marten, Steve; Linder, Kim; Emmons, Jim; Gomez, Antonio; Hasam, Dawud & Maurer, Michelle
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Statistical Analysis and Geologic Evaluation of Laboratory-Derived Physical Property Data for Selected Nevada Test Site Core Samples of Non-Zeolitized Tuffs

Description: A statistical analysis and geologic evaluation of recently acquired laboratory-derived physical property data are being performed to better understand and more precisely correlate physical properties with specific geologic parameters associated with non-zeolitized tuffs at the Nevada Test Site. Physical property data include wet and dry bulk density, grain density (i.e., specific gravity), total porosity, and effective porosity. Geologic parameters utilized include degree of welding, lithology,… more
Date: April 20, 2009
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CMM Technology

Description: This project addressed coordinate measuring machine (CMM) technology and model-based engineering. CMM data analysis and delivery were enhanced through the addition of several machine types to the inspection summary program. CMM hardware and software improvements were made with the purchases of calibration and setup equipment and new model-based software for the creation of inspection programs. Kansas City Plant (KCP) personnel contributed to and influenced the development of dimensional metrolo… more
Date: October 20, 2008
Creator: Ward, Robert C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

What Can DMIS 5.2 Do For You?

Description: The Dimensional Measuring Interface Standard (DMIS) is the first data interoperability protocol standard created specifically for dimensional metrology. DMIS applications are multi-facetted. The standard can behave as a coordinate metrology language to execute measurement part programs, or it can be used as a neutral data exchange mechanism for part programs and measurement results. DMIS is full featured and has many successful implementations. It also has a strong reputation as a progressive s… more
Date: August 20, 2009
Creator: Brown, Curtis W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

UGTA Photograph Database

Description: One of the advantages of the Nevada Test Site (NTS) is that most of the geologic and hydrologic features such as hydrogeologic units (HGUs), hydrostratigraphic units (HSUs), and faults, which are important aspects of flow and transport modeling, are exposed at the surface somewhere in the vicinity of the NTS and thus are available for direct observation. However, due to access restrictions and the remote locations of many of the features, most Underground Test Area (UGTA) participants cannot ob… more
Date: April 20, 2009
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Non-Contact Gaging with Laser Probe

Description: A gage has been constructed using conventional (high end) components for the application of measuring fragile syntactic foam parts in a non-contact mode. Success with this approach has been achieved through a novel method of transferring (mapping) high accuracy local measurements of a coated aluminum master, taken on a Leitz Coordinate Measurement Machine (CMM), to the gage software system. The mapped data is then associated with local voltage readings from two (inner and outer) laser triangula… more
Date: March 20, 2009
Creator: Clinesmith, Mike
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

3-D Micro-Scale Machining Implementation

Description: The KCP investigated milling, turning, and wire EDMing features at a micro-scale using existing equipment to find the limitations and hindrances to producing future designs.
Date: October 20, 2008
Creator: Boucher, Christopher L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Spin-forming Project Report

Description: In a second development order, spin-forming equipment was again evaluated using the test shape, a hemispherical shell. In this second development order, pure vanadium and alloy titanium (Ti-6Al-4V) were spin-formed, as well as additional copper and 21-6-9 stainless. In the first development order the following materials had been spin-formed: copper (alloy C11000 ETP), 6061 aluminum, 304L stainless steel, 21-6-9 stainless steel, and tantalum-2.5% tungsten. Significant challenges included properl… more
Date: March 20, 2009
Creator: Switzner, Nathan & Henry, Dick
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Predicted Geology of the Pahute Mesa-Oasis Valley Phase II Drilling Initiative

Description: Pahute Mesa–Oasis Valley (PM-OV) Phase II drilling will occur within an area that encompasses approximately 117 square kilometers (45 square miles) near the center of the Phase I PM-OV hydrostratigraphic framework model area. The majority of the investigation area lies within dissected volcanic terrain between Pahute Mesa on the north and Timber Mountain on the south. This area consists of a complex distribution of volcanic tuff and lava of generally rhyolitic composition erupted from nearby ca… more
Date: April 20, 2009
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

2011 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada National Security Site, Nye County, Nevada: Review of the Performance Assessments and Composite Analyses

Description: The Maintenance Plan for the Performance Assessments and Composite Analyses for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site (National Security Technologies, LLC, 2007a) requires an annual review to assess the adequacy of the Performance Assessments (PAs) and Composite Analyses (CAs), with the results submitted annually to U.S. Department of Energy (DOE) Office of Environmental Management. The Disposal Authorization Statements for the Area 3 and Area 5 Radioa… more
Date: March 20, 2012
Creator: NSTec Environmental Management
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Result Summary for the Area 5 Radioactive Waste Management Site Performance Assessment Model Version 4.110

Description: Results for Version 4.110 of the Area 5 Radioactive Waste Management Site (RWMS) performance assessment (PA) model are summarized. Version 4.110 includes the fiscal year (FY) 2010 inventory estimate, including a future inventory estimate. Version 4.110 was implemented in GoldSim 10.11(SP4). The following changes have been implemented since the last baseline model, Version 4.105: (1) Updated the inventory and disposal unit configurations with data through the end of FY 2010. (1) Implemented Fede… more
Date: July 20, 2011
Creator: National Security Technologies, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Continuation of the Application of Parallel PIC Simulations to Laser and Electron Transport Through Plasmas Under Conditions Relevant to ICF and SBSS

Description: One of the important research questions in high energy density science (HEDS) is how intense laser and electron beams penetrate into and interact with matter. At high beam intensities the self-fields of the laser and particle beams can fully ionize matter so that beam -matter interactions become beam-plasma interactions. These interactions involve a disparity of length and time scales, and they involve interactions between particles, between particles and waves, and between waves and waves. In … more
Date: April 20, 2007
Creator: Mori, Warren B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Virtual Optical Comparator

Description: The Virtual Optical Comparator, VOC, was conceived as a result of the limitations of conventional optical comparators and vision systems. Piece part designs for mechanisms have started to include precision features on the face of parts that must be viewed using a reflected image rather than a profile shadow. The VOC concept uses a computer generated overlay and a digital camera to measure features on a video screen. The advantage of this system is superior edge detection compared to traditional… more
Date: October 20, 2008
Creator: Thompson, Greg
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Enhanced Electron Efficiency in an X-Ray Diode

Description: The goal for this research is to optimize the XRD structure and usage configurations and increase the efficiency of the XRD. This research was successful in optimizing the XRD structure and usage configurations, thus creating a high efficiency XRD. Best efficiency occurs when there is an angle between the photocathode and incident X-rays.
Date: May 20, 2010
Creator: K. Sun, L. MacNeil
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Glue Film Thickness Measurements by Spectral Reflectance

Description: Spectral reflectance was used to determine the thickness of thin glue layers in a study of the effect of the glue on radiance and reflectance measurements of shocked-tin substrates attached to lithium fluoride windows. Measurements based on profilometry of the components were found to be inaccurate due to flatness variations and deformation of the tin substrate under pressure during the gluing process. The accuracy of the spectral reflectance measurements were estimated to be ±0.5 μm, which was… more
Date: September 20, 2010
Creator: Marshall, B. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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