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The Bastrop Advertiser (Bastrop, Tex.), Vol. 156, No. 94, Ed. 1 Saturday, January 23, 2010 (open access)

The Bastrop Advertiser (Bastrop, Tex.), Vol. 156, No. 94, Ed. 1 Saturday, January 23, 2010

Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.
Date: January 23, 2010
Creator: Wright, Cyndi
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 90, No. 17, Ed. 1 Saturday, January 23, 2010 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 90, No. 17, Ed. 1 Saturday, January 23, 2010

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: January 23, 2010
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History

Doctoral Recital: 2010-01-23 - Joseph W. Rinaldi, baritone

Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: January 23, 2010
Creator: Rinaldi, Joseph W.
Object Type: Sound
System: The UNT Digital Library
Geospatial Information and Geographic Information Systems (GIS): Current Issues and Future Challenges (open access)

Geospatial Information and Geographic Information Systems (GIS): Current Issues and Future Challenges

None
Date: January 23, 2010
Creator: Folger, Peter
Object Type: Report
System: The UNT Digital Library
MACHINERY RESONANCE AND DRILLING (open access)

MACHINERY RESONANCE AND DRILLING

New developments in vibration analysis better explain machinery resonance, through an example of drill bit chattering during machining of rusted steel. The vibration of an operating drill motor was measured, the natural frequency of an attached spring was measured, and the two frequencies were compared to show that the system was resonant. For resonance to occur, one of the natural frequencies of a structural component must be excited by a cyclic force of the same frequency. In this case, the frequency of drill bit chattering due to motor rotation equaled the spring frequency (cycles per second), and the system was unstable. A soft rust coating on the steel to be drilled permitted chattering to start at the drill bit tip, and the bit oscillated on and off of the surface, which increased the wear rate of the drill bit. This resonant condition is typically referred to as a motor critical speed. The analysis presented here quantifies the vibration associated with this particular critical speed problem, using novel techniques to describe resonance.
Date: January 23, 2010
Creator: Leishear, R. & Fowley, M.
Object Type: Article
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 118, No. 16, Ed. 1 Saturday, January 23, 2010 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 118, No. 16, Ed. 1 Saturday, January 23, 2010

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: January 23, 2010
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
2010 Census: Key Enumeration Activities Are Moving Forward, but Information Technology Systems Remain a Concern (open access)

2010 Census: Key Enumeration Activities Are Moving Forward, but Information Technology Systems Remain a Concern

Testimony issued by the Government Accountability Office with an abstract that begins "In March 2008, GAO designated the 2010 Census a high-risk area in part because of information technology (IT) shortcomings and uncertainty over the ultimate cost of the census, now estimated at around $15 billion. The U.S. Census Bureau (Bureau) has since made improvements to various IT systems and taken other steps to mitigate the risks of a successful census. However, last year, GAO noted that a number of challenges and uncertainties remained, and much work remained to be completed under very tight time frames. As requested, this testimony provides an update on the Bureau's readiness for an effective headcount, covering (1) the status of key IT systems; (2) steps the Bureau has taken to revise its cost estimates; and (3) the extent to which critical enumeration activities, particularly those aimed at hard-to-count populations, are on track. The testimony is based on previously issued and ongoing GAO work."
Date: February 23, 2010
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 56, Ed. 1 Tuesday, February 23, 2010 (open access)

The Altus Times (Altus, Okla.), Vol. 112, No. 56, Ed. 1 Tuesday, February 23, 2010

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: February 23, 2010
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 90, No. 38, Ed. 1 Tuesday, February 23, 2010 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 90, No. 38, Ed. 1 Tuesday, February 23, 2010

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: February 23, 2010
Creator: Halter, Janie
Object Type: Newspaper
System: The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 104, No. 16, Ed. 1 Tuesday, February 23, 2010 (open access)

The Boerne Star (Boerne, Tex.), Vol. 104, No. 16, Ed. 1 Tuesday, February 23, 2010

Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date: February 23, 2010
Creator: Cartwright, Brian & Velvin, Candace E.
Object Type: Newspaper
System: The Portal to Texas History
Broadband Infrastructure Programs in the American Recovery and Reinvestment Act (open access)

Broadband Infrastructure Programs in the American Recovery and Reinvestment Act

This report discusses the Implementation and issues related to Broadband Infrastructure Programs in the American Recovery and Reinvestment Act of 2009.
Date: February 23, 2010
Creator: Kruger, Lennard G.
Object Type: Report
System: The UNT Digital Library
Characteristics of Knock in Hydrogen-Oxygen-Argon SI Engine (open access)

Characteristics of Knock in Hydrogen-Oxygen-Argon SI Engine

A promising approach for improving the efficiency of internal combustion engines is to employ a working fluid with a high specific heat ratio such as the noble gas argon. Moreover, all harmful emissions are eliminated when the intake charge is composed of oxygen, nonreactive argon, and hydrogen fuel. Previous research demonstrated indicated thermal efficiencies greater than 45% at 5.5 compression ratio in engines operating with hydrogen, oxygen, and argon. However, knock limits spark advance and increasing the efficiency further. Conditions under which knock occurs in such engines differs from typical gasoline fueled engines. In-cylinder temperatures using hydrogen-oxygen-argon are higher due to the high specific heat ratio and pressures are lower because of the low compression ratio. Better understanding of knock under these conditions can lead to operating strategies that inhibit knock and allow operation closer to the knock limit. In this work we compare knock with a hydrogen, oxygen, and argon mixture to that of air-gasoline mixtures in a variable compression ratio cooperative fuels research (CFR) engine. The focus is on stability of knocking phenomena, as well as, amplitude and frequency of the resulting pressure waves.
Date: February 23, 2010
Creator: Killingsworth, Nick J.; Rapp, Vi H.; Flowers, Daniel L.; Aceves, Salvador M.; Chen, J-Y. & Dibble, Robert
Object Type: Article
System: The UNT Digital Library
CHARACTERIZATION OF CYCLED SPHERICAL RESORCINOL-FORMALDEHYDE ION EXCHANGE RESIN (open access)

CHARACTERIZATION OF CYCLED SPHERICAL RESORCINOL-FORMALDEHYDE ION EXCHANGE RESIN

This report presents characterization data for two spherical resorcinol-formaldehyde (sRF) resin beds that had processed cesium in non-radioactive and radioactive cycles. All column cycle operations for the resin beds including loading, displacements, elution, regeneration, breakthroughs, and solution analyses are reported in Nash and Duignan, 2009a. That report covered four ion exchange (IX) campaigns using the two {approx}11 mL beds in columns in a lead-lag arrangement. The first two campaigns used Savannah River Site (SRS) Tank 2F nonradioactive simulant while the latter two were fed with actual dissolved salt in the Savannah River National Laboratory (SRNL) Shielded Cells. Both radioactive cycles ran to cesium breakthrough of the lead column. The resin beds saw in excess of 400 bed volumes of feed in each cycle. Resin disposal plans in tank farm processing depend on characterizations of resin used with actual tank feed. Following a final 30 bed volume (BV) elution with nitric acid, the resin beds were found to contain detectable chromium, barium, boron, aluminum, iron, sodium, sulfur, plutonium, cesium, and mercury. Resin affinity for plutonium is important in criticality safety considerations. Cesium-137 was found to be less than 10E+7 dpm/g of resin, similar to past work with sRF resin. Sulfur levels …
Date: February 23, 2010
Creator: Nash, C. & Duignan, M.
Object Type: Report
System: The UNT Digital Library
Characterization of Glass-Like Fragments from the 3714 Building (open access)

Characterization of Glass-Like Fragments from the 3714 Building

This report describes characterization of a sample obtained from the 3714 building in the 300 Area. Characterization of this unknown material was required for the demonolition activities in the 300 Area. The object of the study was to dertermine the nature of the material, composition, possible structure, evidence for hazards components. The green material is a sodium alumino-silicate glass. This conclusion is based on the composition provided by SEM-EDS, and the images that suggest a glass-like morphology. Further analysis with Ramin and/or infrared could be used to determine the presence of any organics.
Date: February 23, 2010
Creator: Buck, Edgar C.
Object Type: Report
System: The UNT Digital Library
Chemical Imaging of the Cell Membrane by NanoSIMS (open access)

Chemical Imaging of the Cell Membrane by NanoSIMS

The existence of lipid microdomains and their role in cell membrane organization are currently topics of great interest and controversy. The cell membrane is composed of a lipid bilayer with embedded proteins that can flow along the two-dimensional surface defined by the membrane. Microdomains, known as lipid rafts, are believed to play a central role in organizing this fluid system, enabling the cell membrane to carry out essential cellular processes, including protein recruitment and signal transduction. Lipid rafts are also implicated in cell invasion by pathogens, as in the case of the HIV. Therefore, understanding the role of lipid rafts in cell membrane organization not only has broad scientific implications, but also has practical implications for medical therapies. One of the major limitations on lipid organization research has been the inability to directly analyze lipid composition without introducing artifacts and at the relevant length-scales of tens to hundreds of nanometers. Fluorescence microscopy is widely used due to its sensitivity and specificity to the labeled species, but only the labeled components can be observed, fluorophores can alter the behavior of the lipids they label, and the length scales relevant to imaging cell membrane domains are between that probed by fluorescence resonance …
Date: February 23, 2010
Creator: Weber, P K; Kraft, M L; Frisz, J F; Carpenter, K J & Hutcheon, I D
Object Type: Article
System: The UNT Digital Library
Cluster Munitions: Background and Issues for Congress (open access)

Cluster Munitions: Background and Issues for Congress

This report discusses the background of cluster munitions in the U.S. military, and the current Department of Defense (DOD) and Obama Administration stances on the topic. It also discusses the two major international initiatives to address cluster munitions: the Convention on Cluster Munitions (CCM) and negotiations under the U.N. Convention on Prohibitions or Restrictions on the Use of Certain Conventional Weapons (CCW).
Date: February 23, 2010
Creator: Feickert, Andrew & Kerr, Paul K.
Object Type: Report
System: The UNT Digital Library
CRS Issue Statement on the Middle East (open access)

CRS Issue Statement on the Middle East

None
Date: February 23, 2010
Creator: Sharp, Jeremy M.; Zanotti, Jim; Addis, Casey L.; Migdalovitz, Carol; Katzmann, Kenneth; Blanchard, Christopher M. et al.
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, February 23, 2010 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, February 23, 2010

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: February 23, 2010
Creator: Wray, Kelly
Object Type: Newspaper
System: The Gateway to Oklahoma History
Federal Register, Volume 75, Number 35, February 23, 2010, Pages 7927-8238 (open access)

Federal Register, Volume 75, Number 35, February 23, 2010, Pages 7927-8238

Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date: February 23, 2010
Creator: United States. Office of the Federal Register.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Final technical report for award NO. DE-FG02-95ER20206 (open access)

Final technical report for award NO. DE-FG02-95ER20206

ABSTRACT Initial work focused on the regulation of nitrite reductase, the defining reaction of denitrification as well as nitric oxide (NO) reductase. Expression of the genes encoding both proteins was controlled by NnrR. This regulator was shown to be responsive to NO. More recent work has shown NnrR function is also likely inhibited by oxygen. Therefore, it is this protein that sets the oxygen level at which nitrate respiration takes over from aerobic respiration. The gene encoding NO reductase appears to only require NnrR for expression. Expression of the gene encoding nitrite reductase is more complex. In addition to NnrR, a two component sensor regulator complex termed PrrA and PrrB is also required for expression. These proteins are global regulators and serve to link denitrification with other bioenergetic processes in the cell. They also provide an additional layer of oxygen dependent regulation. The sequencing of the R. sphaeroides 2.4.3 genome allowed us to identify several other genes regulated by NnrR. Surprisingly, most of the genes were not essential for denitrification. Their high level of conservation in related denitrifiers suggests they do provide a selectable benefit to the bacterium, however. We also examined the role of nitrate reductase in contributing to …
Date: February 23, 2010
Creator: Shapleigh, James P.
Object Type: Report
System: The UNT Digital Library
First segments of DART Rail Orange Line likely delayed (open access)

First segments of DART Rail Orange Line likely delayed

News release about a delay in the completion of DART's Orange Line light rail project due to missing a window for construction on a portion of State Highway 114 where the highway and the rail line would intersect.
Date: February 23, 2010
Creator: Lyons, Morgan & Ball, Mark
Object Type: Text
System: The Portal to Texas History
Free Trade Agreements: Impact on U.S. Trade and Implications for U.S. Trade Policy (open access)

Free Trade Agreements: Impact on U.S. Trade and Implications for U.S. Trade Policy

This report provides background on free trade areas (FTAs) -- arrangements among two or more countries under which they agree to eliminate tariffs and nontariff barriers on trade in goods among themselves -- why countries form them, and how they relate to U.S. trade policy. It also discusses recent developments, the economic impact of FTAs, the relation of FTAs to the World Trade Organization (WTO) and debate points, as well as general conclusions and implications for Congress.
Date: February 23, 2010
Creator: Cooper, William H.
Object Type: Report
System: The UNT Digital Library
[Funeral Program for Melvin Lewis Martin, February 23, 2010] (open access)

[Funeral Program for Melvin Lewis Martin, February 23, 2010]

Funeral program for Mr. Melvin Lewis Martin, born August 14, 1952 and died February 12, 2010. The funeral was held Tuesday, February 23, 2010 at Calvary Baptist Church, officiated by Rev. Kevin L. Nelson, Pastor. Funeral arrangements were made through Carter-Taylor-Williams Mortuary and he was buried in Fort Sam Houston National Cemetery near San Antonio, Texas.
Date: February 23, 2010
Creator: unknown
Object Type: Pamphlet
System: The Portal to Texas History
[Funeral Program for Mr. Melvin Lewis Martin, February 23, 2010] (open access)

[Funeral Program for Mr. Melvin Lewis Martin, February 23, 2010]

Funeral program for {Mr. Melvin Lewis Martin. The funeral was held February 23, 2010 at Calvary Baptist Church, officiated by Rev, Kevin L. Nelson. Funeral arrangements were made through the Carter-Taylor-Williams Mortuary and he was buried in Ft. Sam Houston National Cemetery in San Antonio, Texas.
Date: February 23, 2010
Creator: unknown
Object Type: Pamphlet
System: The Portal to Texas History