Partner
UNT Libraries Special Collections
108
UNT Libraries Government Documents Department
77
UNT Music Library
28
Oklahoma Historical Society
23
UNT Libraries
23
UNT College of Arts and Sciences
10
Sterling Municipal Library
8
San Antonio Public Library
5
Carl Albert Congressional Research and Studies Center
4
Cooke County Library
3
58 More
Collection
Texas Digital Newspaper Program
107
Multicultural Center Records
52
Tocker Foundation Grant
45
College of Music Marketing Collection
41
Congressional Research Service Reports
37
Office of Scientific & Technical Information Technical Reports
30
College of Music Recordings
27
Oklahoma Digital Newspaper Program
27
The Baytown Sun
8
Denton County Newspapers Collection
8
96 More
Degree Department
Degree Discipline
Degree Level
Country
States
Decade
Month
Day
368 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
368
next
EU-U.S. Economic Ties: Framework, Scope, and Magnitude
This report provides background information and analysis of the U.S.-EU (European Union) economic relationship related to the costs and benefits of closer U.S. economic ties with the EU. It examines the economic and political framework of the relationship and the scope and magnitude of the ties based on data from various sources. In addition, the report analyzes the implications these factors have for U.S. economic policy toward the EU.
Date:
February 21, 2014
Creator:
Cooper, William H.
Object Type:
Report
System:
The UNT Digital Library
Critical Infrastructures: Background, Policy, and Implementation
This report discusses the evolution of a national critical infrastructure policy and the institutional structures established to implement it. Critical infrastructure includes physical assets used to produce and distribute services such as electricity (including the power plants and electric grid), communications, and computers. The report highlights five issues of Congressional concern: identifying critical assets; assessing vulnerabilities and risks; allocating resources; information sharing; and regulation.
Date:
February 21, 2014
Creator:
Moteff, John D.
Object Type:
Report
System:
The UNT Digital Library
Symmetry-induced intermittency in a stochastic reflexive model
Article on symmetry-induced intermittency in a stochastic reflexive model.
Date:
February 21, 2012
Creator:
Palatella, Luigi & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
Financial Audit: Federal Deposit Insurance Corporation Funds' 2012 and 2011 Financial Statements
A letter report issued by the Government Accountability Office with an abstract that begins "In GAO's opinion, the Federal Deposit Insurance Corporation (FDIC) fairly presented, in all material respects, the 2012 and 2011 financial statements for the two funds it administers--the Deposit Insurance Fund (DIF) and the FSLIC Resolution Fund (FRF). Also, in GAO's opinion, FDIC maintained, in all material respects, effective internal control over financial reporting relevant to the DIF and the FRF as of December 31, 2012. Further, GAO did not find any reportable instances of noncompliance with provisions of the laws and regulations it tested."
Date:
February 21, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
DOD Supply Chain: Suspect Counterfeit Electronic Parts Can Be Found on Internet Purchasing Platforms
A letter report issued by the Government Accountability Office with an abstract that begins "Suspect counterfeit and boguspart numbers that are not associated with any authentic partsmilitary-grade electronic parts can be found on Internet purchasing platforms, as none of the 16 parts vendors provided to GAO were legitimate. Suspect counterfeit, which applies to the first two categories of parts that were tested, is the strongest term used by an independent testing lab, signifying a potential violation of intellectual property rights, copyrights, or trademark laws, or misrepresentation to defraud or deceive. After submitting requests for quotes on both platforms, GAO received responses from 396 vendors, of which 334 were located in China; 25 in the United States; and 37 in other countries, including the United Kingdom and Japan. Of the 16 parts purchased, vendors usually responded within a day. GAO selected the first of any vendor among those offering the lowest prices that provided enough information to purchase a given part, generally within 2 weeks. Under GAOs selection methodology, all 16 parts were provided by vendors in China."
Date:
February 21, 2012
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Great Lakes Restoration Initiative Action Plan
This action plan articulates the most significant ecosystem problems for the Great Lakes, and describes efforts to address them. The five areas are toxic substances, invasive species, health and pollution, wildlife and habitat preservation and restoration, and finally a component that covers accountability and evaluation.
Date:
February 21, 2010
Creator:
United States. Council on Environmental Quality.
Object Type:
Text
System:
The UNT Digital Library
2020 Census: Local Administrative Records and Their Use in the Challenge Program and Decennial
A letter report issued by the Government Accountability Office with an abstract that begins "The Census Bureau (Bureau) issued significant changes to rules governing the records that communities use to challenge the Bureau's population estimates. Previously, the Bureau routinely accepted all challenges, largely without regard to the data sources cited or provided so long as they supported the calculations and covered the appropriate reporting periods. According to Bureau officials, these changes are based on research that shows that estimates based on some methods and records (e.g., births, deaths, and migration) are substantially more accurate than estimates based on others. Among other changes, the Bureau modified procedures so that challenges by subcounty governments to the Bureau's estimates of people living in housing units will no longer affect countylevel population estimates. Moving forward, any such challenge resulting in an increase in the estimate of a subcounty population will be offset by a downward revision to the population estimate of all other communities in the same county. Also, the Bureau plans to routinely review population challenges in light of each community's population growth trend.Corroborating data will be required for challenges inconsistent with the trend."
Date:
February 21, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Greensheet (Houston, Tex.), Vol. 43, No. 37, Ed. 1 Tuesday, February 21, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
February 21, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 44, No. 44, Ed. 1 Thursday, February 21, 2013
Free weekly newspaper that includes business and classified advertising.
Date:
February 21, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Port Aransas South Jetty (Port Aransas, Tex.), Vol. 42, No. 8, Ed. 1 Thursday, February 21, 2013
Weekly newspaper from Port Aransas, Texas on Mustang Island that includes local, state and national news along with extensive advertising.
Date:
February 21, 2013
Creator:
Judson, Mary Henkel
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 38, Ed. 1 Tuesday, February 21, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
February 21, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 44, No. 45, Ed. 1 Thursday, February 21, 2013
Free weekly newspaper that includes business and classified advertising.
Date:
February 21, 2013
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Water conservation savings quantification study
This report discusses a series of research tasks regarding approaches to quantifying conservation savings.
Date:
February 21, 2012
Creator:
BBC Research & Consulting
Object Type:
Report
System:
The Portal to Texas History
THATCamp: The Humanities and Technology Camp
Presentation for the first Open Data Hackathon at UNT, organized as part of International Open Data Day. This presentation discusses The Humanities and Technology (THAT) Camp.
Date:
February 21, 2015
Creator:
Laredo, Jeanette Ann
Object Type:
Presentation
System:
The UNT Digital Library
Data Access and Research Transparency in Political Science Journals
Presentation for the first Open Data Hackathon at UNT, organized as part of International Open Data Day. This presentation discusses data access and research transparency in political science journals.
Date:
February 21, 2015
Creator:
Ishiyama, John T., 1960-
Object Type:
Presentation
System:
The UNT Digital Library
Federalism Challenge to Medicaid Expansion Under the Affordable Care Act: Florida v. Department of Health and Human Services
None
Date:
February 21, 2012
Creator:
Thomas, Kenneth R.
Object Type:
Report
System:
The UNT Digital Library
Guiding Center Equations for Ideal Magnetohydrodynamic Modes
Guiding center simulations are routinely used for the discovery of mode-particle resonances in tokamaks, for both resistive and ideal instabilities and to find modifications of particle distributions caused by a given spectrum of modes, including large scale avalanches during events with a number of large amplitude modes. One of the most fundamental properties of ideal magnetohydrodynamics is the condition that plasma motion cannot change magnetic topology. The conventional representation of ideal magnetohydrodynamic modes by perturbing a toroidal equilibrium field through δ~B = ∇ X (ξ X B) however perturbs the magnetic topology, introducing extraneous magnetic islands in the field. A proper treatment of an ideal perturbation involves a full Lagrangian displacement of the field due to the perturbation and conserves magnetic topology as it should. In order to examine the effect of ideal magnetohydrodynamic modes on particle trajectories the guiding center equations should include a correct Lagrangian treatment. Guiding center equations for an ideal displacement ξ are derived which perserve the magnetic topology and are used to examine mode particle resonances in toroidal confinement devices. These simulations are compared to others which are identical in all respects except that they use the linear representation for the field. Unlike the case …
Date:
February 21, 2013
Creator:
White, Roscoe B.
Object Type:
Report
System:
The UNT Digital Library
CO and CO2 Hydrogenation to Methanol Calculated Using the BEEF-vdW Functional
None
Date:
February 21, 2013
Creator:
Studt, Felix; Abild-Pedersen, Frank; Varley, Joel B. & Norskov, Jens K.
Object Type:
Article
System:
The UNT Digital Library
Simplified models for mask roughness induced LER
The ITRS requires < 1.2nm line-edge roughness (LER) for the 22nm half-pitch node. Currently, we can consistently achieve only about 3nm LER. Further progress requires understanding the principle causes of LER. Much work has already been done on how both the resist and LER on the mask effect the final printed LER. What is poorly understood, however, is the extent to which system-level effects such as mask surface roughness, illumination conditions, and defocus couple to speckle at the image plane, and factor into LER limits. Presently, mask-roughness induced LER is studied via full 2D aerial image modeling and subsequent analysis of the resulting image. This method is time consuming and cumbersome. It is, therefore, the goal of this research to develop a useful 'rule-of-thumb' analytic model for mask roughness induced LER to expedite learning and understanding.
Date:
February 21, 2011
Creator:
McClinton, Brittany & Naulleau, Patrick
Object Type:
Article
System:
The UNT Digital Library
Quantitative evaluation of mask phase defects from through-focus EUV aerial images
Mask defects inspection and imaging is one of the most important issues for any pattern transfer lithography technology. This is especially true for EUV lithography where the wavelength-specific properties of masks and defects necessitate actinic inspection for a faithful prediction of defect printability and repair performance. In this paper we will present a technique to obtain a quantitative characterization of mask phase defects from EUV aerial images. We apply this technique to measure the aerial image phase of native defects on a blank mask, measured with the SEMATECH Berkeley Actinic Inspection Tool (AIT) an EUV zoneplate microscope that operates at Lawrence Berkeley National Laboratory. The measured phase is compared with predictions made from AFM top-surface measurements of those defects. While amplitude defects are usually easy to recognize and quantify with standard inspection techniques like scanning electron microscopy (SEM), defects or structures that have a phase component can be much more challenging to inspect. A phase defect can originate from the substrate or from any level of the multilayer. In both cases its effect on the reflected field is not directly related to the local topography of the mask surface, but depends on the deformation of the multilayer structure. Using the …
Date:
February 21, 2011
Creator:
Mochi, Iacopo; Yamazoe, Kenji; Neureuther, Andrew & Goldberg, Kenneth A.
Object Type:
Article
System:
The UNT Digital Library
Closure Report for the 92-Acre Area and Corrective Action Unit 111: Area 5 WMD Retired Mixed Waste Pits, Nevada National Security Site, Nevada
This Closure Report (CR) presents information supporting closure of the 92-Acre Area, which includes Corrective Action Unit (CAU) 111, 'Area 5 WMD Retired Mixed Waste Pits.' This CR provides documentation supporting the completed corrective actions and confirmation that the closure objectives were met. This CR complies with the requirements of the Federal Facility Agreement and Consent Order (FFACO) (FFACO, 1996 [as amended March 2010]). Closure activities began in January 2011 and were completed in January 2012. Closure activities were conducted according to Revision 1 of the Corrective Action Decision Document/Corrective Action Plan (CADD/CAP) for the 92-Acre Area and CAU 111 (U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office [NNSA/NSO], 2010). The following closure activities were performed: (1) Construct an engineered evapotranspiration cover over the boreholes, trenches, and pits in the 92-Acre Area; (2) Install use restriction (UR) warning signs, concrete monuments, and subsidence survey monuments; and (3) Establish vegetation on the covers. UR documentation is included as Appendix C of this report. The post-closure plan is presented in detail in Revision 1 of the CADD/CAP for the 92-Acre Area and CAU 111, and the requirements are summarized in Section 5.2 of this document. When the next request …
Date:
February 21, 2012
Creator:
National Security Technologies, LLC
Object Type:
Report
System:
The UNT Digital Library
Absorber height effects on SWA restrictions and 'Shadow' LER
As extreme-ultraviolet lithography (EUVL) approaches introduction at the 22-nm half-pitch node, several key aspects of absorber height effects remain unexplored. In particular, sidewall angle (SWA) restrictions based on the height of the mask absorber has not yet been clearly defined. In addition, the effects of absorber height on line-edge roughness (LER) from shadowing has not been examined. We make an initial investigation into how tight SWA constraints are and the extent to which shadow LER alters basic LER. Our approach to SWA aims to find SWA restrictions based on 10% of the total CD error budget (10% of CD). Thus, we allot the SWA budget a {+-}0.2nm tolerance for 22nm half-pitch. New with EUVL is the off-axis illumination system. One potential pitfall that must be carefully monitored is the effect of mask absorber height blocking light from reaching, and therefore, correctly detecting, the base edge position of a feature. While mask features can correctly compensate sizing to target at the wafer, the effects of this shadowing on LER have not yet been investigated. Specifically, shadow LER may exacerbate or mitigate the inherent LER on the mask. Shadowing may also cause a difference in the observed LER on the right and …
Date:
February 21, 2011
Creator:
McClinton, Brittany & Naulleau, Patrick
Object Type:
Article
System:
The UNT Digital Library
Lessons Learned From an Installation Perspective for Chemicaal Demilitarization Plant Start-Up at Four Operating Incineration Sites.
This study presents the lessons learned by chemical storage installations as they prepared for the start of chemical demilitarization plant operations at the four current chemical incinerator sites in Alabama, Arkansas, Oregon, and Utah. The study included interviews with persons associated with the process and collection of available documents prepared at each site. The goal was to provide useful information for the chemical weapons storage sites in Colorado and Kentucky that will be going through plant start-up in the next few years. The study is not a compendium of what to do and what not to do. The information has been categorized into ten lessons learned; each is discussed individually. Documents that may be useful to the Colorado and Kentucky sites are included in the appendices. This study should be used as a basis for planning and training.
Date:
February 21, 2011
Creator:
Motz, L. & Sciences, Decision and Information
Object Type:
Report
System:
The UNT Digital Library
CALORIMETER-BASED ADJUSTMENT OF MULTIPLICITY DETERMINED 240PU EFF KNOWN-A ANALYSIS FOR THE ASSAY OF PLUTONIUM
In nuclear material processing facilities, it is often necessary to balance the competing demands of accuracy and throughput. While passive neutron multiplicity counting is the preferred method for relatively fast assays of plutonium, the presence of low-Z impurities (fluorine, beryllium, etc.) rapidly erodes the assay precision of passive neutron counting techniques, frequently resulting in unacceptably large total measurement uncertainties. Conversely, while calorimeters are immune to these impurity effects, the long count times required for high accuracy can be a hindrance to efficiency. The higher uncertainties in passive neutron measurements of impure material are driven by the resulting large (>>2) {alpha}-values, defined as the ({alpha},n):spontaneous fission neutron emission ratio. To counter impurity impacts for high-{alpha} materials, a known-{alpha} approach may be adopted. In this method, {alpha} is determined for a single item using a combination of gamma-ray and calorimetric measurements. Because calorimetry is based on heat output, rather than a statistical distribution of emitted neutrons, an {alpha}-value determined in this way is far more accurate than one determined from passive neutron counts. This fixed {alpha} value can be used in conventional multiplicity analysis for any plutonium-bearing item having the same chemical composition and isotopic distribution as the original. With the results …
Date:
February 21, 2012
Creator:
Dubose, F.
Object Type:
Article
System:
The UNT Digital Library