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[Mentor Review: Parent Night and Classroom Observations at Greenbriar School by Nancy Walkup] (open access)

[Mentor Review: Parent Night and Classroom Observations at Greenbriar School by Nancy Walkup]

In this document, Mentor Nancy Walkup conducts a comprehensive review of Parent Night and provides insightful observations from her visits to five classrooms at Greenbriar School.
Date: 1999-11-11/1999-11-12
Creator: unknown
System: The UNT Digital Library
Project Report for July 1, 1993 - June 30, 1994 and Project Proposal for July 1, 1994 - June 30, 1995 (open access)

Project Report for July 1, 1993 - June 30, 1994 and Project Proposal for July 1, 1994 - June 30, 1995

A document presented to the Getty Center for Education in the Arts by the North Texas Institute for Educators on the Visual Arts (NTIEVA). The document includes a project report for July 1, 1993 - June 30, 1994 and a proposal for July 1, 1994 - June 30, 1995. Twelve appendices are attached.
Date: March 11, 1994
Creator: North Texas Institute for Educators on the Visual Arts
System: The UNT Digital Library
Mechanical support for straw tubes (open access)

Mechanical support for straw tubes

A design is proposed for mounting a large number of straw tubes to form an SSC central tracking chamber. The assembly is precise and of very low mass. The fabrication is modular and can be carried out with a minimum of tooling and instrumentation. Testing of modules is possible prior to the final assembly. 4 figs.
Date: March 11, 1990
Creator: Joestlein, H.
System: The UNT Digital Library
Guidelines for structural bolting in accordance with the AISC (American Institute of Steel Construction) eighth edition manual of steel construction'' (open access)

Guidelines for structural bolting in accordance with the AISC (American Institute of Steel Construction) eighth edition manual of steel construction''

This paper specifies the usage of structural bolts in terms of their design, selection and application, in accordance with the American Institute of Steel Construction (AISC) Eighth Edition. Manual of Steel Construction.'' 1 tab.
Date: May 11, 1990
Creator: Western, J. L. & Johns, D. M.
System: The UNT Digital Library
The single electron chemistry of coals (open access)

The single electron chemistry of coals

Depolymerization of coals at low temperatures may offer advantages over thermal bond cleavage. Because bond cleavage energies of radical cations are lower than the corresponding homolytic bond cleavage energies of the same bond, generation of radical cations in coal may make possible depolymerization at lower temperatures. We seek to investigate the above possibility using single molecules containing functional groups common in coals. Since the generation of a radical cation requires the removal of an electron from a neutral molecule, a primary focus of the study will be finding oxidants that will remove an electron from compounds with structural similarity to those typically found in coals. The study will also be concerned with the decomposition of radical cations and the products formed as a result of the decomposition. In our last report we described that treatment of bibenzyl and neo-pentylbenzene with Fe(III) (1,10-phenanthroline)[sub 3](ClO[sub 4])[sub 3] (Fe(III)(PHEN)) in refluxing CH[sub 3]CN (82[degrees]C) failed to produce substantial bond cleavage [beta] to the aromatic ring. Because bond cleavage was not observed, we have continued our study by moving to compounds which have lower ionization potentials as well as study other oxidants.
Date: November 11, 1992
Creator: Larsen, John W. & Eskay, T. P.
System: The UNT Digital Library
Liquid Effluent Monitoring Information System test plans release 1.2 (open access)

Liquid Effluent Monitoring Information System test plans release 1.2

The Liquid Effluent Monitoring Information System (LEMIS) is being developed as the organized information repository facility in support of the liquid effluent monitoring requirements of the Tri-Party Agreement. It is necessary to provide an automated repository into which the results from liquid effluent sampling will be placed. This repository must provide for effective retention, review, and retrieval of selected sample data by authorized persons and organizations. This System Architecture document is the aggregation of the DMR P+ methodology project management deliverables. Together they represent a description of the project and its plan through four Releases, corresponding to the definition and prioritization of requirements defined by the user.
Date: October 11, 1994
Creator: Adams, R. T.
System: The UNT Digital Library
Description of work for 216-U-Pond test pits (open access)

Description of work for 216-U-Pond test pits

This description of work (DOW) details the field activities associated with the test pit excavation and soil sampling at the 216- U-10 Pond (U-10 Pond) in the 200 West Area and will serve as a field guide for those performing the work. It will be used in conjunction with the 200-UP-2 Resource Conservation and Recovery Act of 1976 (RCRA) Facility Investigation/Corrective Measures Study (DOE-RL 1993a, [LFI]) and Site Characterization Manual (WHC 1988a). Test pits will be constructed to characterize the vertical extent of contaminants in sediments within and beneath the former U-10 pond.
Date: August 11, 1993
Creator: Kelty, G. G.
System: The UNT Digital Library
The cost of wetland creation and restoration. Final report, [February 12, 1992--April 30, 1994]- Draft (open access)

The cost of wetland creation and restoration. Final report, [February 12, 1992--April 30, 1994]- Draft

This report examines the economics of wetland creation, restoration, and enhancement projects, especially as they are used within the context of mitigation for unavoidable wetland losses. Complete engineering-cost-accounting profiles of over 90 wetland projects were developed in collaboration with leading wetland restoration and creation practitioners around the country to develop a primary source database. Data on the costs of over 1,000 wetland projects were gathered from published sources and other available databases to develop a secondary source database. Cases in both databases were carefully analyzed and a set of baseline cost per acre estimates were developed for wetland creation, restoration, and enhancement. Observations of costs varied widely, ranging from $5 per acre to $1.5 million per acre. Differences in cost were related to the target wetland type, and to site-specific and project-specific factors that affected the preconstruction, construction, and post-construction tasks necessary to carry out each particular project. Project-specific and site-specific factors had a much larger effect on project costs than wetland type for non-agricultural projects. Costs of wetland creation and restoration were also shown to differ by region, but not by as much as expected, and in response to the regulatory context. The costs of wetland creation, restoration, and …
Date: July 11, 1994
Creator: King, D. & Costanza, R.
System: The UNT Digital Library
241-SY-101 air lance removal lessons learned (open access)

241-SY-101 air lance removal lessons learned

An emergency task was undertaken to remove four air lances and one thermocouple (TC) tree from tank 241-SY-101 (SY-101). This resulted from video observation that these pipes were being severely bent during periodic gas release events that regularly occurred every three to four months. At the time, the gas release events were considered to be the number one safety issue within the US Department of Energy (DOE) complex. This emergency removal task was undertaken on an extremely short schedule that required all activities possible to be completed in parallel. This approach and extremely short schedule, while successful, resulted in some undesirable consequences from less than desired time for design, reviews, equipment testing, operations training, and bad weather conditions. These consequences included leakage of liquid waste from the containers to the ground, higher than expected dose rates at the container surface, difficult field operations, and unexpected pipe configuration during removal. In addition, changes to environmental regulations and severe winter weather impacted the packaging and shipping activities required the prepare the removed pipes for storage at the Central Waste Complex (CWC). The purpose of this document is to identify lessons to be learned for future activities. In context of the emergency conditions …
Date: October 11, 1994
Creator: Moore, T. L. & Titzler, P. A.
System: The UNT Digital Library
Radiative forcing calculations for SF{sub 6} and CH{sub 4} using a correlated k-distribution transmission model (open access)

Radiative forcing calculations for SF{sub 6} and CH{sub 4} using a correlated k-distribution transmission model

A correlated k-distribution model for the atmospheric transmission of major molecular species has been used to calculate the tropospheric radiative forcing for the ground state, v{sub 3} band of SF{sub 6} and CH{sub 4}. A mid latitude summer, clear sky approximation, temperature-pressure distribution was used in the radiative transfer calculations. For the SF{sub 6} calculations a value of 0.26 W/m{sup 2} was obtained for the v{sub 3} band forcing using a new value of the measured integrated band absorption for SF{sub 6}. The abundance used was 1 ppbv of SF{sub 6}. Hot band contributions to the forcing are estimated to be on the order of three times the value of the v{sub 3} value giving a total radiative forcing of about 0.73 W/m{sup 2}. For the CH{sub 4} calculation a value of 1.71 W/m{sup 2} was obtained and this number agrees with previously published CH{sub 4} radiative forcing values to with four percent. The radiative forcing calculation for SF{sub 6} issued to estimate the global warming potential (GWP) of SF{sub 6} using an approximate model developed to provide reasonably 000 accurate GWPS. The results give GWPs for SF{sub 6} of the order of 12000--25000 (CO{sub 2} = 1). We estimate …
Date: August 11, 1993
Creator: Grossman, Allen S.; Grant, Keith E. & Wuebbles, Donald J.
System: The UNT Digital Library
On implications of e/h {ne} 1 (open access)

On implications of e/h {ne} 1

There is a considerable literature of studies of compensation in calorimeters at the microscopic and macroscopic level. I doubt that the exercise described here adds any fundamental understanding to previous studies, but it can be helpful in organizing thinking. Previous attempts at motivating the expense of a compensating calorimeter for an SSC detector have tended to show that noncompensation effects get buried by cone corrections and such. A marginally significant resolution increase was found in Z/Z` study for the LOl. Despite the certainty of reinvention, I opted to study the effects of e/h {ne} 1 in dijet balance, which will undoubtedly be used to extend calibrations across boundaries and study detector jet resolution. Although this is not a physics process which could offer some requirement for what is good enough, it does allow jet resolution to be reasonably defined.
Date: March 11, 1991
Creator: Nodulman, L.
System: The UNT Digital Library
The SU(3)-Nambu-Jona-Lasinio Soliton in the Collective Quantization Formulation (open access)

The SU(3)-Nambu-Jona-Lasinio Soliton in the Collective Quantization Formulation

On grounds of a semibosonized Nambu-Jona-Lasinio model, which has SU(3){sub R}{circle_times}SU(3){sub L}-symmetry in the chiral limit, mass splittings for spin 1/2 and spin 3/2 baryons are studied in the presence of an explicit chiral symmetry breaking strange quark mass. To this aim these strangeness carrying baryons are understood as SU(3)-rotational excitations of an SU(2)-embedded soliton solution. Therefore, within the framework of collective quantization, the fermion determinant with the strange quark mass is expanded up to the second order in the flavor rotation velocity and up to the first order in this quark mass. Besides the strange and non-strange moments of inertia, which have some counterparts within the Skyrme model, some so-called anomalous moments of inertia are obtained. These call be related to the imaginary part of the effective Euclidian action and contain among others the anomalous baryon current. This is shown in a gradient expansion up to the first non-vanishing order. Together with the {Sigma}-commutator these are the solitonic ingredients of the collective hamiltonian, which is then diagonalized by means of strict perturbation theory in the strange quark mass and by the Yabu-Audo method. Both methods yield very good results for the masses of the spin 1/2 and 3/2 baryons. …
Date: June 11, 1992
Creator: Blotz, A.; Goeke, K.; Diakonov, D.; Petrov, V.; Pobylitsa, P. V. & Park, N. W.
System: The UNT Digital Library
Engineering task plan for steam line ramp calculations (open access)

Engineering task plan for steam line ramp calculations

The purpose of this document is to provide an approved work plan to perform calculations that verify the load limits of a proposed ramp over a steam line at the back side (East side) of SY Farm in support of work package 2W-94-00812/K. The objective of this supporting document is to provide Operations with a set of checked calculations that verify the ramp over the steam line at SY Farm will support a fully loaded concrete mixer truck without affecting the steam line. The calculations will be performed by an engineers from Facility Systems and independently checked and reviewed by another engineer. The calculations may then be added to the work package. If Operations decides to make any configuration changes to the steam line or surrounding area, Operations shall have these changes documented by an Engineering Change Notice (ECN). This ECN can be done by Facility Systems or any other engineering organization at the direction of Operations.
Date: October 11, 1994
Creator: DeSantis, G. N. & Freeman, R. D.
System: The UNT Digital Library
Integrated verification experiment data collected as part of the Los Alamos National Laboratory`s Source Region program. Appendix F: Regional data from Lawrence Livermore National Laboratory and Sandia National Laboratory Seismic Networks (open access)

Integrated verification experiment data collected as part of the Los Alamos National Laboratory`s Source Region program. Appendix F: Regional data from Lawrence Livermore National Laboratory and Sandia National Laboratory Seismic Networks

A dataset of regional seismograms assembled for a series of Integrated Verification Experiments conducted by the Los Alamos National Laboratory Source Region program is described. The seismic data has been assembled from networks operated by Lawrence Livermore National Laboratory and Sandia National Laboratory. Examples of the data are shown and basic recording characteristics of the network are described. The seismograms are available on a data tape in SAC format upon request.
Date: June 11, 1993
Creator: Taylor, S. R.
System: The UNT Digital Library
Procedure for separation of Se and determination of Se-79 by liquid scintillation (open access)

Procedure for separation of Se and determination of Se-79 by liquid scintillation

This report describes the development work and demonstration of a technique for separation of selenium suitable for determination of Se-79 by liquid scintillation counting. The technique has been demonstrated on actual DWPF (Defense Waste Processing Facility) sludge samples which contain very large loads of Sr-90 activity. The separation required a decontamination of selenium from Sr by a factor of over 10{sup 6}, from Co and Cs by factor of 10{sup 4}, and from Tc-99 by a factor of 100, while still maintaining a selenium recovery of about 50%. Using this technique the author has determined Se-79 in five actual DWPF samples with a precision of about 70% relative standard deviation. This separation has not been demonstrated on actual DWPF samples which have the largest Cs-137 loads. He does not anticipate that these untested samples will present a difficult problem.
Date: August 11, 1991
Creator: Dewberry, R. A.
System: The UNT Digital Library
Central Calorimeter configuration: A study report to the SDC Technical Board (open access)

Central Calorimeter configuration: A study report to the SDC Technical Board

The single most important determinant of the overall Central Calorimeter (CC) shape is the criterion for depth of hadron shower containment. This criterion and its rapidity dependence is discussed in a companion document to this report titled ``Depth Requirements in SSC Calorimeters`` by a D. Green et al., SDC-91-00016. The conclusion reached there is that the calorimeter should be 10 {lambda} thick at {eta} = 0 and increase smoothly to 12 {lambda} at {eta} = 3. We adopt this criterion in this report and discuss the mechanical properties and design details of a CC that meets this condition.
Date: April 11, 1991
Creator: Kirk, T. B. W. & Wicklund, A. B.
System: The UNT Digital Library
Evaluation of sludge screening limit for Tank Farm Low Level Waste (open access)

Evaluation of sludge screening limit for Tank Farm Low Level Waste

High Level Waste (HLW) generated during Separations processing in the F- and H-Canyons is transferred to the 241-F/H Tank Farms for storage in 61 underground, carbon steel tanks. The waste is an aqueous solution containing dissolved sodium salts and insoluble metal oxides/hydroxides. As the waste is collected in a receipt tank, the insoluble solids settle to form the sludge phase. The supernatant solution is decanted to an evaporator to reduce the volume. The evaporator concentrate is transferred to another waste tank and is cooled, causing the sodium salts to precipitate from solution and form the saltcake phase. Eventually, the soluble and insoluble components will be separately prepared for processing within the DWPF for final disposal. As a result of routine and non-routine activities that are part of managing these highly radioactive wastes, secondary solid waste is generated. Low level waste (LLW) such as protective clothing, plastic sheeting, plastic huts, etc. are connected for disposal in B-25, B-12 and other waste containers. The wastes are transferred to the E-Area Vaults (EAV) for disposal, and must comply with the Waste Acceptance Criteria (WAC) for disposal of LLW. Compliance with the WAC includes manifesting the quantities of certain radioisotopes and declaring that the …
Date: August 11, 1994
Creator: Georgeton, G. K.
System: The UNT Digital Library
Detection and quantitative analysis of ferrocyanide and ferricyanide: FY 93 Florida State University Raman spectroscopy report (open access)

Detection and quantitative analysis of ferrocyanide and ferricyanide: FY 93 Florida State University Raman spectroscopy report

This report provides a summary of work to develop and investigate the feasibility of using Raman spectroscopy with tank waste materials. It contains Raman spectra from organics, such as ethylenediaminetetraacetic acid (EDTA), hydroxyethylenediaminetetraacteic acid (HEDTA), imino diacetic acid (IDA), kerosene, tributyl phosphate (TBP), acetone and butanol, anticipated to be present in tank wastes and spectra from T-107 real and BY-104 simulant materials. The results of investigating Raman for determining moisture content in tank materials are also presented. A description of software algorithms developed to process Raman spectra from a dispersive grating spectrometer system and an in initial design for a data base to support qualitative and quantitative application of remote Raman sensing with tank wastes.
Date: October 11, 1994
Creator: Mann, C. K. & Vickers, T. J.
System: The UNT Digital Library
Uranium Mill Tailings Remedial Action (UMTRA) Surface Project: Project plan. Revision 1 (open access)

Uranium Mill Tailings Remedial Action (UMTRA) Surface Project: Project plan. Revision 1

The Uranium Mill Tailings Radiation Control Act of 1978 (UMTRCA) [Public Law (PL) 95-604, 42 United States Code (USC) 7901], hereinafter referred to as the ``Act,`` authorizes the US Department of Energy (DOE) to stabilize and control surface tailings and ground water contamination. To fulfill this mission, the DOE has established two projects under the Uranium Mill Tailings Remedial Action (UMTRA) Project Office. The Ground Water Project was established in April 1991 as a major project and a separate project plan will be prepared for that portion of the mission. This project plan covers the UMTRA Surface Project, a major system acquisition (MSA).
Date: August 11, 1993
Creator: unknown
System: The UNT Digital Library
Liquid Effluent Monitoring Information System (LEMIS) System Construction (open access)

Liquid Effluent Monitoring Information System (LEMIS) System Construction

The liquid effluent sampling program is part of the effort to minimize adverse environmental impact during the cleanup operation at the Hanford Site. Of the 33 Phase I and Phase II liquid effluents, all streams actively discharged to the soil column will be sampled. The Liquid Effluent Monitoring Information System (LEMIS) is being developed as the organized information repository facility in support of the liquid effluent monitoring requirements of the Tri-Party Agreement. It is necessary to provide an automated repository into which the results from liquid effluent sampling will be placed. This repository must provide for effective retention, review, and retrieval of selected sample data by authorized persons and organizations. This System Construction document is the aggregation of the DMR P+ methodology project management deliverables. Together they represent a description of the project and its plan through four Releases, corresponding to the definition and prioritization of requirements defined by the user.
Date: October 11, 1994
Creator: Adams, R. T.
System: The UNT Digital Library
Sequential shock induced switch tests for Eglin Air Force Base (open access)

Sequential shock induced switch tests for Eglin Air Force Base

Tests were performed at EG&G Mound Applied Technologies to investigate the effect of using the tangential shock wave from detonating Extex explosive to cause shock conduction of a Kapton dielectric. Two voltages (600 and 4000) were switched from a 600 pF capacitor. Timing between four shock switches and four pin switches was found and compared during a single detonation event. Electrical conduction was observed between shock switches and the current paths were found.
Date: August 11, 1994
Creator: Cech, R. D.
System: The UNT Digital Library
Transportation: Environment, energy and the economy (open access)

Transportation: Environment, energy and the economy

In the US, the transportation sector consumes over one quarter of the entire energy used, almost in its entirety as petroleum products, and in quantities greater than the total US domestic oil production. The transportation sector is responsible for a significant fraction of all emissions that either prevent US cities from achieving compliance with EPA air quality standards or have serious global change implications. Finally, the GDP (Gross Domestic Product) and employment due to the sector are low and incommensurate with the high fraction of energy that the transportation sector consumes. We examine below this situation in some detail and make recommendations for improvements.
Date: January 11, 1993
Creator: Petrakis, L.
System: The UNT Digital Library
Effect of pretreating of host oil on coprocessing. Quarterly progress report, January 1, 1993--March 31, 1993 (open access)

Effect of pretreating of host oil on coprocessing. Quarterly progress report, January 1, 1993--March 31, 1993

The principal objective of this research is to determine the role that host petroleum-derived oils (1000 {degree}F{sup +}), as that of catalytically treated host oils, play when used as liquefaction solvents in coprocessing with coal. The host oils will be extensively characterized and then pretreated in a number of ways which involve catalytic reactions such as hydrogenation, hydrocracking, and isomerization. The pretreated oils will then be characterized by elemental analysis, catalytic dehydrogenation, and NMR. The effects of the host oil on coprocessing with coal will be compared to those obtained using catalytically modified heavy oils. When appropriate, model compounds will be used to study specific reactions brought about by the pretreatments. A total of 18 pretreatment runs have been made on an AMOCO vacuum tower residuum, VTR, in an attempt to increase its hydrogen content from 10.2 wt % to a level of about 11.5%. This pretreatment resulted in a significant increase in the hydrogen content of the starting oil (10.2 wt % to 11.2%).
Date: May 11, 1993
Creator: Wender, I. & Tierney, J. W.
System: The UNT Digital Library
Geophysical investigation of burn pit, 128-H-1, 100-H Area (open access)

Geophysical investigation of burn pit, 128-H-1, 100-H Area

The 128-H-1 burn pit is located in the northeast corner of 100-H Area. The objective of the survey was to delineate subsurface features in the 128-H-1 burn pit that may affect the emplacement of soil-gas probes. Ground-penetrating radar (GPR) and electromagnetic induction (EMI) were the two techniques used in the investigation. The methods were selected because they are non-intrusive, relatively fast, economical, and have been used successfully in other geophysical investigations on the Hanford Site. The GPR system used for this work utilized a 300-MHz antenna to transmit the Em energy into the ground. The transmitted energy is reflected back to a receiving antenna where variations in the return signal are recorded. Common reflectors include natural geologic conditions such as bedding, cementation, moisture, and clay, or man-made objects such as pipes, barrels, foundations, and buried wires. The studied depth, which varies from site to site, was 0--11 ft for this survey. The method is limited in depth by transmit power, receiver sensitivity, and attenuation of the transmitted energy. Depth of investigation is influenced by highly conductive material, such as metal drums, which reflect all the energy back to the receiver. Therefore, the method cannot ``see`` below such objects.
Date: July 11, 1994
Creator: Szwartz, G. J.
System: The UNT Digital Library