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Pilot-Scale Testing of a Rotary Microfilter with Irradiated Filter Disks and Simulated SRS Waste
The processing rate of the Actinide Removal Project (ARP) is limited by the flow rate of the solid-liquid separation process. If the Department of Energy, DOE, could identify and develop a solid- liquid separation technology with a higher filter flux, they could increase the throughput of the Actinide Removal Project and complete treating that fraction of the waste stream in a shorter time, with a significant reduction in life-cycle cost. Savannah River Technology Center personnel identified the rotary microfilter as a technology that could significantly increase filter flux, with improvements of as much as 10X over the 0.5 micron crossflow filter and 5X over the 0.1 micron crossflow filter. The Savannah River Technology Center received funding from the DOE-HQ, Office of Cleanup Technologies, to evaluate and develop the rotary microfilter for radioactive service at the Savannah River Site. The authors performed pilot-scale simulant filtration tests with irradiated filter disks. They employed three types of filter disks for the tests (0.5 m stainless steel, 0.1 m stainless steel, and 0.1 m ceramic/stainless steel). They analyzed the filter's structural material, Ryton(R) for hardness, and irradiated the entire disk with an estimated 2.5-5 year (83-165 MRad) radiation dose. They measured the hardness of …
Date:
January 20, 2004
Creator:
POIRIER, MICHAELR.
Object Type:
Report
System:
The UNT Digital Library
Position Estimation of Transceivers in Communication Networks
With rapid developments in wireless sensor networks, there is a growing need for transceiver position estimation independent of GPS, which may not be available in indoor networks. Our approach is to use range estimates from time-of-flight (TOF) measurements, a technique well suited to large bandwidth physical links, such as in ultra-wideband (UWB) systems. In our UWB systems, pulse duration less than 200 psecs can easily be resolved to less than a foot. Assuming an encoded UWB physical layer, we first test positioning accuracy using simulations. We are interested in sensitivity to range errors and the required number of ranging nodes, and we show that in a high-precision environment, such as UWB, the optimal number of transmitters is four. Four transmitters with {+-}20ft. range error can locate a receiver to within one or two feet. We then implement these algorithms on an 802.11 wireless network and demonstrate the ability to locate a network access point to approximately 20 feet.
Date:
January 20, 2004
Creator:
Dowla, F. & Kent, C.
Object Type:
Article
System:
The UNT Digital Library
Radiological Design Summary Report for TRU Vent and Purge Process
This report contains top-level requirements for the various areas of radiological protection for workers. Detailed quotations of the requirements for applicable regulatory documents can be found in the accompanying Implementation Guide. For the purposes of demonstrating compliance with these requirements, per Engineering Standard 01064, shall consider / shall evaluate indicates that the designer must examine the requirement for the design and either incorporate or provide a technical justification as to why the requirement is not incorporated. The Transuranic Vent and Purge process is not a project, but is considered a process change. This process has been performed successfully by Solid Waste on lower activity TRU drums. This summary report applies a graded approach and describes how the Transuranic Vent and Purge process meets each of the applicable radiological design criteria and requirements specified in Manual WSRC-TM-95-1, Engineering Standard Number 01064.
Date:
January 20, 2004
Creator:
Taus, L.B.
Object Type:
Report
System:
The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 116, No. 32, Ed. 1 Tuesday, January 20, 2004
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
January 20, 2004
Creator:
Hill, Earl Clyde, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
Remote Chemical Sensing Using Quantum Cascade Lasers
Research done by the IR sensors team at PNNL is focused on developing advanced spectroscopic methods for detecting signatures of nuclear, chemical, biological and explosives weapons or weapons production. The sensors we develop fall into two categories: remote sensors that can be operated at distances ranging from 150 m to 10 km, and point sensors that are used for in-situ inspection and detection. FY03 has seen an explosion in FM DIAL progress with the net result being solid confirmation that FM DIAL is a technique capable of remote chemical monitoring in a wide variety of venues. For example, FM DIAL was used to detect a small plume of hydrogen sulfide, a candidate CW agent, released in the desert environment of the Hanford 200 Area site. These experiments were conducted over a range of physical conditions including outside temperatures ranging from 70 F to 105 F and turbulence conditions ranging from quiescent to chaotic. We are now rapidly developing the information needed to design prototype FM DIAL systems that are optimized for specific applications that include scenarios such as fixed position stand-off detection and mobile UAV mounted remote monitoring. Just as an example, in FY04 we will use FM DIAL to …
Date:
January 20, 2004
Creator:
Harper, Warren W.; Strasburg, Jana D.; Aker, Pam M. & Schultz, John F.
Object Type:
Report
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 88, No. 112, Ed. 1 Tuesday, January 20, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 20, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Sealy News (Sealy, Tex.), Vol. 117, No. 6, Ed. 1 Tuesday, January 20, 2004
Semiweekly newspaper from Sealy, Texas that includes local, state, and national news along with advertising.
Date:
January 20, 2004
Creator:
Griffin, Joanie & Horecka, Bobby
Object Type:
Newspaper
System:
The Portal to Texas History
Social Security: Raising or Eliminating the Taxable Earnings Base
Social Security taxes are levied on earnings up to a maximum level set each year. In 2004, this maximum — or what is referred to as the taxable earnings base — is $87,900. There is no similar base for the Medicare Hospital Insurance (HI) portion of the tax; all earnings are taxable for HI purposes. Elimination of the HI base was proposed by President Clinton and enacted in 1993, effectively beginning in 1994. Recently others have proposed that the base for Social Security be raised or eliminated as well. They complain that taxing earnings only up to a certain level creates a regressive tax. They point out that 94% of all workers whose earnings fall below this level have a greater proportion of earnings taxed than the 6% whose earnings exceed it.
Date:
January 20, 2004
Creator:
Haltzel, Laura
Object Type:
Report
System:
The UNT Digital Library
Social Service Provisions in the CARE Act and the Charitable Giving Act
None
Date:
January 20, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Stability of Stationary Solutions of the Multifrequency Radiation Diffusion Equations
A nondimensional model of the multifrequency radiation diffusion equation is derived. A single material, ideal gas, equation of state is assumed. Opacities are proportional to the inverse of the cube of the frequency. Inclusion of stimulated emission implies a Wien spectrum for the radiation source function. It is shown that the solutions are uniformly bounded in time and that stationary solutions are stable. The spatially independent solutions are asymptotically stable, while the spatially dependent solutions of the linearized equations approach zero.
Date:
January 20, 2004
Creator:
Hald, O H & Shestakov, A I
Object Type:
Article
System:
The UNT Digital Library
Synthesis and optical properties of II-O-VI highly mismatched alloys
We have synthesized ternary and quaternary diluted II-VI oxides using the combination of O ion implantation and pulsed laser melting. CdO{sub x}Te{sub 1-x} thin films with x up to 0.015, and the energy gap reduced by 150 meV were formed by O{sup +}-implantation in CdTe followed by pulsed laser melting. Quaternary Cd{sub 0.6}Mn{sub 0.4}O{sub x}Te{sub 1-x} and Zn{sub 0.88}Mn{sub 0.12}O{sub x}Te{sub 1-x} with mole fraction of incorporated O as high as 0.03 were also formed. The enhanced O incorporation in Mn-containing alloys is believed to be due to the formation of relatively strong Mn-O bonds. Optical transitions associated with the lower (E{sub -}) and upper (E{sub +}) conduction subbands resulting from the anticrossing interaction between the localized O states and the extended conduction states of the host are clearly observed in these quaternary diluted II-VI oxides. These alloys fulfill the criteria for a multiband semiconductor that has been proposed as a material for making high efficiency, single-junction solar cells.
Date:
January 20, 2004
Creator:
Yu, K. M.; Walukiewicz, W.; Shan, W.; Wu, J.; Beeman, J. W.; Scarpulla, M. A. et al.
Object Type:
Article
System:
The UNT Digital Library
Tax Administration: Planning for IRS's Enforcement Process Changes Included Many Key Steps but Can Be Improved
A letter report issued by the General Accounting Office with an abstract that begins "In recent years, the Internal Revenue Service (IRS) has experienced declines in most of its enforcement programs, including declines in audits and in efforts to collect delinquent taxes. Increasing enforcement productivity is one strategy that can help reverse these declines. To this end, IRS is currently planning and has begun implementing enforcement process improvement projects. GAO was asked to assess the extent to which the planning for the projects followed steps consistent with both published GAO guidance and the experiences of private sector and government organizations. Specifically, GAO assessed the extent to which four judgmentally selected projects followed the 20 planning steps."
Date:
January 20, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Tracking the Inside Intruder Using Net Log on Debug Logging in Microsoft Windows Server Operating Systems
In today's well-connected environments of the Internet, intranets, and extranets, protecting the Microsoft Windows network can be a daunting task for the security engineer. Intrusion Detection Systems are a must-have for most companies, but few have either the financial resources or the people resources to implement and maintain full-scale intrusion detection systems for their networks and hosts. Many will at least invest in intrusion detection for their Internet presence, but others have not yet stepped up to the plate with regard to internal intrusion detection. Unfortunately, most attacks will come from within. Microsoft Windows server operating systems are widely used across both large and small enterprises. Unfortunately, there is no intrusion detection built-in to the Windows server operating system. The security logs are valuable but can be difficult to manage even in a small to medium sized environment. So the question arises, can one effectively detect and identify an in side intruder using the native tools that come with Microsoft Windows Server operating systems? One such method is to use Net Logon Service debug logging to identify and track malicious user activity. This paper discusses how to use Net Logon debug logging to identify and track malicious user activity both …
Date:
January 20, 2004
Creator:
Davis, CS
Object Type:
Report
System:
The UNT Digital Library
Tracking the Inside Intruder Using Net Log on Debug Logging in Microsoft Windows Server Operating Systems
In today's well-connected environments of the Internet, intranets, and extranets, protecting the Microsoft Windows network can be a daunting task for the security engineer. Intrusion Detection Systems are a must-have for most companies, but few have either the financial resources or the people resources to implement and maintain full-scale intrusion detection systems for their networks and hosts. Many will at least invest in intrusion detection for their Internet presence, but others have not yet stepped up to the plate with regard to internal intrusion detection. Unfortunately, most attacks will come from within. Microsoft Windows server operating systems are widely used across both large and small enterprises. Unfortunately, there is no intrusion detection built-in to the Windows server operating system. The security logs are valuable but can be difficult to manage even in a small to medium sized environment. So the question arises, can one effectively detect and identify an in side intruder using the native tools that come with Microsoft Windows Server operating systems? One such method is to use Net Logon Service debug logging to identify and track malicious user activity. This paper discusses how to use Net Logon debug logging to identify and track malicious user activity both …
Date:
January 20, 2004
Creator:
Davis, CS
Object Type:
Report
System:
The UNT Digital Library
UTSI/CFFF MHD PROGRAM COMPLETION AND RELATED ACTIVITY
The Discharge Monitoring Reports (DMRs) for October, November and December, 2003, were prepared and submitted to the Tennessee Department of Environment and Conservation (TDEC). TVG Environmental, Inc. carried out the scheduled groundwater well sampling on November 17, 2003. The CFFF is currently on a semi-annual testing program required by the Tennessee Department of Environment and Conservation. TVG Environmental conducted this semi-annual sampling event for five groundwater wells adjacent to the CFFF. The semi-annual Groundwater Monitoring Report (dated December 17, 2003) from TVG Environmental was received in late December, 2003. The report was noted to have a couple of typographical errors and therefore, it was returned to TVG for correction. The corrected report will be forwarded to DOE in January 2004, as soon as it is received.
Date:
January 20, 2004
Creator:
Muehlhauser, Joel W.
Object Type:
Report
System:
The UNT Digital Library
Yb:S-FAP Lasers
It has recently been reported that several high power, diode-pumped laser systems have been developed based on crystals of Yb:S-FAP [Yb{sup 3+}:Sr{sub 5}(PO{sub 4}){sub 3}F]. The Mercury Laser, at Lawrence Livermore National Laboratory, is the most prominent system using Yb:S-FAP and is currently producing 23J at 5 Hz in a 15 nsec pulse, based on partial activation of the system. In addition, a regenerative amplifier is being developed at Waseda University in Japan and has produced greater than 12 mJ with high beam quality at 50Hz repetition rate. Q-peak has demonstrated 16 mJ of maximum energy/output pulse in a multi-pass, diode side-pumped amplifier and ELSA in France is implementing Yb:S-FAP in a 985 nm pump for an EDFA, producing 250 mW. Growth of high optical quality crystals of Yb:S-FAP is a challenge due to multiple crystalline defects. However, at this time, a growth process has been developed to produce high quality 3.5 cm diameter Yb:S-FAP crystals and a process is under development for producing 6.5 cm diameter crystals.
Date:
January 20, 2004
Creator:
Schaffers, K I
Object Type:
Article
System:
The UNT Digital Library
317/319 phytoremediation site monitoring report - 2003 growing season.
In 1999, Argonne National Laboratory-East (ANL-E) designed and installed a series of engineered plantings consisting of a vegetative cover system and approximately 800 hybrid poplars and willows rooting at various predetermined depths. The plants were installed using various methods including Applied Natural Science's TreeWell{reg_sign} system. The goal of the installation was to protect downgradient surface and groundwater by hydraulic control of the contaminated plume by intercepting the contaminated groundwater with the tree roots, removing moisture from the upgradient soil area, reducing water infiltration, preventing soil erosion, degrading and/or transpiring the residual volatile organic compounds (VOCs), and removing tritium from the subsoil and groundwater. This report presents the results of the monitoring activities conducted by Argonne's Energy Systems Division (ES) in the growing season of 2003. ES was tasked with the biomonitoring of the plantation to determine contaminant uptake and groundwater contact. VOCs were found in plant tissue both at the French Drain and the Hydraulic Control locations in varying concentrations, and tritium levels in transpirate was found to continue a trend of higher concentrations compared to the background in the ANL-E area.
Date:
February 20, 2004
Creator:
Negri, M. C.; Gopalakrishnan, G.; Hamilton, C. & Systems, Energy
Object Type:
Report
System:
The UNT Digital Library
Air Pollution: Legal Perspectives on the “Routine Maintenance” Exception to New Source Review
The report surveys the original legal landscape surrounding this exemption – in the contexts of determining applicability of New Source Performance Standards, and New Source Review in Prevention of Significant Deterioration and nonattainment areas. It then summarizes the many significant developments during the current Bush Administration, both in the Federal Register and in the courts.
Date:
February 20, 2004
Creator:
Meltz, Robert
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 291, Ed. 1 Friday, February 20, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 20, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 82, No. 80, Ed. 1 Friday, February 20, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 20, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 98, No. 15, Ed. 1 Friday, February 20, 2004
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
February 20, 2004
Creator:
Cartwright, Brian & Morgan, Clay
Object Type:
Newspaper
System:
The Portal to Texas History
Brady Standard-Herald and Heart O' Texas News (Brady, Tex.), Ed. 1 Friday, February 20, 2004
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
February 20, 2004
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
Bringing Peace to Chechnya? Assessments and Implications
Russia's then-Premier Vladimir Putin ordered military, police, and security forces to enter the breakaway Chechnya region in September 1999, and these forces occupied most of the region by early 2000. The conflict has resulted in thousands of military and civilian casualties and the massive destruction of housing and infrastructure. Putin's rise to power and continuing popularity have been tied at least partly to his perceived ability to prosecute this conflict successfully. This report details the background on the conflict in the region, elections and peace-making, and related material over the Russian-Chechnyan conflict.
Date:
February 20, 2004
Creator:
Nichol, Jim
Object Type:
Report
System:
The UNT Digital Library
The BTeV Software Tutorial Suite
The BTeV Collaboration is starting to develop its C++ based offline software suite, an integral part of which is a series of tutorials. These tutorials are targeted at a diverse audience, including new graduate students, experienced physicists with little or no C++ experience, those with just enough C++ to be dangerous, and experts who need only an overview of the available tools. The tutorials must both teach C++ in general and the BTeV specific tools in particular. Finally, they must teach physicists how to find and use the detailed documentation. This report will review the status of the BTeV experiment, give an overview of the plans for and the state of the software and will then describe the plans for the tutorial suite.
Date:
February 20, 2004
Creator:
Kutschke, Robert K.
Object Type:
Article
System:
The UNT Digital Library