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[News Clip: Gun search] captions transcript

[News Clip: Gun search]

Video footage from the WBAP-TV station in Fort Worth, Texas to accompany a news story about a sought after murder weapon in Fort Worth.
Date: January 6, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library

[Photograph 2012.201.OVZ001.4701]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Platoons of police officers hunted the rough canyons southwest of here for two bank robbers Tuesday but they found only one good clue - a hideout shack. The two men who robbed Gracemont's First National Bank and shot the president were believed to be in the vicinity of Dead Man's and Horse Thief Canyons about 2 1/2 miles southwest of here. Crime bureau agents said tracks found in and around the shack matched those found near the bandits' abandoned get-away car. They said they believed the car had been hidden in the shack Monday for use in the robbery Tuesday......One state officer believe the bandits deliberately wrecked their car on a dirt road overlooking Dead Man's Canyon in order to throw officers of the track. A second theory, the one most generally accepted by police and most of the townspeople of Gracemont is that the robbers are still in hiding. And if they are, some believe chilly weather conditions will make it almost certain the bandits will have to come out of hiding and take refuge in one of the farm homes nearby, or perhaps steal a car in …
Date: February 2, 1960
Creator: King, Cliff
Object Type: Photograph
System: The Gateway to Oklahoma History
Application of Diagnostic/Prognostic Methods to Critical Equipment for the Spent Nuclear Fuel Cleanup Program (open access)

Application of Diagnostic/Prognostic Methods to Critical Equipment for the Spent Nuclear Fuel Cleanup Program

The management of the Spent Nuclear Fuel (SNF) project at the Hanford K-Basin in the 100 N Area has successfully restructured the preventive maintenance, spare parts inventory requirements, and the operator rounds data requirements. In this investigation, they continue to examine the different facets of the operations and maintenance (O&M) of the K-Basin cleanup project in search of additional reliability and cost savings. This report focuses on the initial findings of a team of PNNL engineers engaged to identify potential opportunities for reducing the cost of O&M through the application of advanced diagnostics (fault determination) and prognostics (residual life/reliability determination). The objective is to introduce predictive technologies to eliminate or reduce high impact equipment failures. The PNNL team in conjunction with the SNF engineers found the following major opportunities for cost reduction and/or enhancing reliability: (1) Provide data routing and automated analysis from existing detection systems to a display center that will engage the operations and engineering team. This display will be operator intuitive with system alarms and integrated diagnostic capability. (2) Change operating methods to reduce major transients induced in critical equipment. This would reduce stress levels on critical equipment. (3) Install a limited sensor set on failure prone …
Date: February 28, 2002
Creator: Casazza, Lawrence O.; Jarrell, Donald B.; Koehler, Theresa M.; Meador, Richard J. & Wallace, Dale E.
Object Type: Report
System: The UNT Digital Library
Are Published Minimum Vapor Phase Spark Ignition Energy Data Valid? (open access)

Are Published Minimum Vapor Phase Spark Ignition Energy Data Valid?

The use of sprayed flammable fluids as solvents in dissolution and cleaning processes demand detailed understanding of ignition and fire hazards associated with these applications. When it is not feasible to inert the atmosphere in which the spraying process takes place, then elimination of all possible ignition sources must be done. If operators are involved in the process, the potential for human static build-up and ultimate discharge is finite, and it is nearly impossible to eliminate. The specific application discussed in this paper involved the use of heated Dimethyl Sulfoxide (DMSO) to dissolve high explosives (HE). Search for properties of DMSO yielded data on flammability limits and flash point, but there was no published information pertaining to the minimum energy for electrical arc ignition. Due to the sensitivity of this procedure, The Hazards Control Department of Lawrence Livermore National Laboratory (LLNL) was tasked to determine the minimum ignition energy of DMSO aerosol and vapor an experimental investigation was thus initiated. Because there were no electrical sources in spray chamber, Human Electro-Static Discharge (HESD) was the only potential ignition source. Consequently, the electrostatic generators required for this investigation were designed to produce electrostatic arcs with the defined voltage and current pulse …
Date: November 21, 2001
Creator: Staggs, K J; Alvares, N J & Greenwood, D W
Object Type: Article
System: The UNT Digital Library
Lattice Matrix Elements and CP Violation in B and KA Physics: Status and Outlook (open access)

Lattice Matrix Elements and CP Violation in B and KA Physics: Status and Outlook

Status of lattice calculations of hadron matrix elements along with CP violation in B and in K systems is reviewed. Lattice has provided useful input which, in conjunction with experimental data, leads to the conclusion that CP-odd phase in the CKM matrix plays the dominant role in the observed asymmetry in B {yields} {psi}K{sub s}. It is now quite likely that any beyond the SM, CP-odd, phase will cause only small deviations in B-physics. Search for the effects of the new phase(s) will consequently require very large data samples as well as very precise theoretical predictions. Clean determination of all the angles of the unitarity triangle therefore becomes essential. In this regard B {yields} KD{sup 0} processes play a unique role. Regarding K-decays, remarkable progress made by theory with regard to maintenance of chiral symmetry on the lattice is briefly discussed. First application already provide quantitative information on B{sub K} and the {Delta}I = 1/2 rule. The enhancement in ReA{sub 0} appears to arise solely from tree operators, esp. Q{sub 2}; penguin contribution to ReA{sub 0} appears to be very small. However, improved calculations are necessary for {epsilon}{prime}/{epsilon} as there the contributions of QCD penguins and electroweak penguins largely seem …
Date: January 3, 2003
Creator: Soni, A.
Object Type: Article
System: The UNT Digital Library
Search for Delta S = 2 nonleptonic hyperon decays (open access)

Search for Delta S = 2 nonleptonic hyperon decays

A sensitive search for the rare decays {Omega}{sup -} {yields} {Lambda}{pi}{sup -} and {Xi}{sup 0} {yields} p{pi}{sup -} has been performed using data from the 1997 run of the HyperCP (Fermilab E871) experiment. Limits on other such processes do not exclude the possibility of observable rates for |{Delta}S| = 2 nonleptonic hyperon decays, provided the decays occur through parity-odd operators. They obtain the branching-fraction limits {Beta}({Omega}{sup -} {yields} {Lambda}{pi}{sup -}) < 2.9 x 10{sup -6} and {Beta}({Xi}{sup 0} {yields} p{pi}{sup -}) < 8.2 x 10{sup -6}, both at 90% confidence level.
Date: March 1, 2005
Creator: White, C. G.; /IIT, Chicago; Burnstein, R. A.; Chakravorty, A.; Chan, A.; Chen, Y. C. et al.
Object Type: Article
System: The UNT Digital Library
Fowler DMO and time migration for transversely isotropic media with explicit operators (open access)

Fowler DMO and time migration for transversely isotropic media with explicit operators

In this report, the authors devise a Fowler-type DMO algorithm for transversely isotropic media using the analytic expression for normal-moveout velocity given by Tsvankin (1995a). Alkhalifah and Tsvankin (1995) have shown that in transversely isotropic media with a vertical axis of symmetry (VTI) the P-wave normal-moveout (NMO) velocity as a function of ray parameter can be fully described by just two parameters: the zero-dip NMO velocity V{sub nmo}(O) and the anisotropic parameter {eta}. In the authors extension of Fowler DMO, resampling in the frequency-wavenumber domain makes it possible to obtain the values of V{sub nmo}(O) and {eta} by inspecting zero-offset (stacked) panels for different pairs of the two parameters. The simplest way to reduce the range of solutions in this two-dimensional search is to obtain V{sub nmo}(O) from conventional NMO velocity analysis. Since most of the computing time is spent on generating constant-velocity stacks, the added computational effort due to the presence of anisotropy is relatively minor. Synthetic and field-data examples demonstrate that the isotropic Fowler DMO technique fails to generate an accurate zero-offset section and obtain the zero-dip NMO velocity for non-elliptical VTI models. In contrast, their anisotropic algorithm allows one to find the values of the parameters V{sub …
Date: December 1994
Creator: Anderson, J.; Alkhalifah, T. & Tsvankin, I.
Object Type: Article
System: The UNT Digital Library
An investigation of genetic operators for continuous parameter space (open access)

An investigation of genetic operators for continuous parameter space

The success of a genetic optimization algorithm in continuous parameter space depends on the recombination (crossover) operators that it uses. In this paper we consider a wide spectrum of such operators within a unified framework and study their relative importance in the search process. We consider four basic types recombination operators which cover the relevant exploration potential of a continuous space: Interpolation, Extrapolation, Exchange and Mutation. Each of these basic types may have several variants. We characterize the various operators and their variants by their spatial sampling properties and examine their contributions to the search by applying different mixtures of the operators in several benchmark problems. The results suggest that the optimal mixture of operators may depend on the problem. But, in general, all basic types are needed for efficient optimization.
Date: March 9, 1994
Creator: Grossman, T. & Davidor, Y.
Object Type: Article
System: The UNT Digital Library
Treating paraffin deposits in producing oil wells (open access)

Treating paraffin deposits in producing oil wells

Paraffin deposition has been a problem for operators in many areas since the beginning of petroleum production from wells. An extensive literature search on paraffin problems and methods of control has been carried out, and contact was made with companies which provide chemicals to aid in the treatment of paraffin problems. A discussion of the nature of paraffins and the mechanisms of this deposition is presented. The methods of prevention and treatment of paraffin problems are summarized. Suggested procedures for handling paraffin problems are provided. Suggestions for areas of further research testing are given.
Date: January 1, 1992
Creator: Noll, L.
Object Type: Report
System: The UNT Digital Library
Deceptiveness and genetic algorithm dynamics (open access)

Deceptiveness and genetic algorithm dynamics

We address deceptiveness, one of at least four reasons genetic algorithms can fail to converge to function optima. We construct fully deceptive functions and other functions of intermediate deceptiveness. For the fully deceptive functions of our construction, we generate linear transformations that induce changes of representation to render the functions fully easy. We further model genetic algorithm selection recombination as the interleaving of linear and quadratic operators. Spectral analysis of the underlying matrices allows us to draw preliminary conclusions about fixed points and their stability. We also obtain an explicit formula relating the nonuniform Walsh transform to the dynamics of genetic search. 21 refs.
Date: January 1, 1990
Creator: Liepins, G. E. & Vose, M. D.
Object Type: Article
System: The UNT Digital Library
Natural ventilation: it's as easy as opening the windows, or is it (open access)

Natural ventilation: it's as easy as opening the windows, or is it

The research consisted of an evaluation of the existing technologies available for passive cooling with an emphasis on strategies related to the use of natural ventilation. A preliminary data base for the study was established by three major efforts: 1. An extensive literature search of the architectural press was undertaken to ascertain the degree to which passive cooling strategies in general and natural ventilation in particular are designed into buildings at the present time. 2. An investigation of existing building stock profiles was undertaken to identify the existing and potential obstacles or advantages to the implementation of natural ventilation as a passive cooling strategy. The EIA Nonresidential Buildings Energy Consumption Survey and two previous PNL studies were reviewed. 3. Components 1 and 2 were followed up with telephone interviews and site visits with the architects, building owners and operators of selected buildings from 1 and 2 above to gain more specific insights into the problems and pleasures typically associated with natural ventilation.
Date: October 1, 1984
Creator: Siebein, G.W.
Object Type: Report
System: The UNT Digital Library
Neutrino-electron scattering and the search for new physics (open access)

Neutrino-electron scattering and the search for new physics

I want to discuss the role of neutrino-electron scattering in the search for physics beyond the standard model. The standard model makes specific predictions about the nature of the neutrinos which participate in such processes and about the interactions responsible for them. The process upon which I shall concentrate is elastic scattering, but I shall pay some attention to inelastic processes in which the target electron is itself transformed into a heavier charged lepton, in other words the inverse of the decay of the heavier lepton. In the case of elastic scattering we are mainly looking at neutral-currents and we can ask a series of simple questions: Does the interaction conserve lepton flavor. Does it fit the prescriptions of the standard model. Are the neutrinos Majorana or Dirac particles. In the case of inverse muon and tau decays we are looking at charge-currents, and we want to pin down the identity of the neutrinos emitted in the decay of these charged leptons as well as to set bounds on non-(V-A) components of the interaction. In order to discuss these topics, it is useful to review the general properties of the scattering process, especially the kinematics and the general form of …
Date: January 1, 1988
Creator: Rosen, S. P.
Object Type: Article
System: The UNT Digital Library
Waste water heat recovery appliance. Final report (open access)

Waste water heat recovery appliance. Final report

An efficient convective waste heat recovery heat exchanger was designed and tested. The prototype appliance was designed for use in laundromats and other small commercial operations which use large amounts of hot water. Information on general characteristics of the coin-op laundry business, energy use in laundromats, energy saving resources already in use, and the potential market for energy saving devices in laundromats was collected through a literature search and interviews with local laundromat operators in Fort Collins, Colorado. A brief survey of time-use patterns in two local laundromats was conducted. The results were used, with additional information from interviews with owners, as the basis for the statistical model developed. Mathematical models for the advanced and conventional types were developed and the resulting computer program listed. Computer simulations were made using a variety of parameters; for example, different load profiles, hold-up volumes, wall resistances, and wall areas. The computer simulation results are discussed with regard to the overall conclusions. Various materials were explored for use in fabricating the appliance. Resistance to corrosion, workability, and overall suitability for laundromat installations were considered for each material.
Date: November 21, 1983
Creator: Chapin, H. D.; Armstrong, P. R. & Chapin, F. A. W.
Object Type: Report
System: The UNT Digital Library
Treating paraffin deposits in producing oil wells (open access)

Treating paraffin deposits in producing oil wells

Paraffin deposition has been a problem for operators in many areas since the beginning of petroleum production from wells. An extensive literature search on paraffin problems and methods of control has been carried out, and contact was made with companies which provide chemicals to aid in the treatment of paraffin problems. A discussion of the nature of paraffins and the mechanisms of this deposition is presented. The methods of prevention and treatment of paraffin problems are summarized. Suggested procedures for handling paraffin problems are provided. Suggestions for areas of further research testing are given.
Date: January 1, 1992
Creator: Noll, L.
Object Type: Report
System: The UNT Digital Library
Unattended mode operation of specialized NDA (nondestructive assay) systems (open access)

Unattended mode operation of specialized NDA (nondestructive assay) systems

Nondestructive assay systems have been developed to allow data acquisition equipment to operate unattended in an automated mixed oxide facility, reducing inspector time in a facility and giving them time for other activities. Fewer inspector visits mean less impact on plant operators. Neutron detectors are located at key measurement points in the facility. Near each detector is located an electronics cabinet, which contains two JSR-11 shift registers, two COMPAQ Portable III computers, and a printer. The signal from the detector is split and sent to each shift register for redundancy and reliability. The software for unattended operation consists primarily of two programs, COLLECT and REVIEW. The COLLECT program runs on the computers in unattended operation; shift-register data are acquired each 60 s. The COLLECT program distinguishes between a normal background and a disconnected signal, between material moving near the detector and material in the detector, and whether the material in the detector is a sample or a californium normalization source. Depending on the type of assay, different data are stored on the hard disk. During an inspection, the inspector stops the current measurement campaign, examines the data from both computers briefly at the electronics cabinet, copies the campaign data to …
Date: January 1, 1989
Creator: Klosterbuer, S.F.; Kern, E.A.; Painter, J.A. & Takahashi, S.
Object Type: Article
System: The UNT Digital Library
Ground state searches in fcc intermetallics (open access)

Ground state searches in fcc intermetallics

A cluster expansion is used to predict the fcc ground states, i.e., the stable phases at zero Kelvin as a function of composition, for alloy systems. The intermetallic structures are not assumed, but derived regorously by minimizing the configurational energy subject to linear constraints. This ground state search includes pair and multiplet interactions which spatially extend to fourth nearest neighbor. A large number of these concentration-independent interactions are computed by the method of direct configurational averaging using a linearized-muffin-tin orbital Hamiltonian cast into tight binding form (TB-LMTO). The interactions, derived without the use of any adjustable or experimentally obtained parameters, are compared to those calculated via the generalized perturbation method extention of the coherent potential approximation within the context of a KKR Hamiltonian (KKR-CPA-GPM). Agreement with the KKR-CPA-GPM results is quite excellent, as is the comparison of the ground state results with the fcc-based portions of the experimentally-determined phase diagrams under consideration.
Date: December 1, 1991
Creator: Wolverton, C.; de Fontaine, D. (Lawrence Berkeley Lab., CA (United States)); Ceder, G. (Massachusetts Inst. of Tech., Cambridge, MA (United States)) & Dreysse, H. (Nancy-1 Univ., 54 (France). Lab. de Physique du Solide)
Object Type: Article
System: The UNT Digital Library
Competing electron-electron/electron-phonon interactions and polyacetylene (open access)

Competing electron-electron/electron-phonon interactions and polyacetylene

Using Lanczos exact diagonalization, we investigate the effects of the competition between the electro-electron and electron-phonon interactions in the context of the 1-D tight-binding Peierls-Hubbard Hamiltonian, studying various structural, optical, and vibrational properties of strongly correlated systems. We use polyacetylene as our experimental guide, and perform a parameter space search to determine the level at which a unique set of parameters can model this prototypical conducting polymer and, more generally, the applicability of the simple'' 1-D Peierls-Hubbard Hamiltonian to these highly interesting materials. 9 refs., 3 tabs.
Date: April 8, 1991
Creator: Gammel, J.T. (Los Alamos National Lab., NM (USA) Bayreuth Univ. (Germany, F.R.). Physics Inst.); Campbell, D.K. (Los Alamos National Lab., NM (USA)) & Loh, E.Y. Jr. (Thinking Machines Corp., Cambridge, MA (USA))
Object Type: Article
System: The UNT Digital Library
A nuclear structure study of the proposed gamma-ray laser candidate nucleus /sup 186/Re (open access)

A nuclear structure study of the proposed gamma-ray laser candidate nucleus /sup 186/Re

We present results of theoretical nuclear structure model calculations for the gamma-ray laser candidate nucleus /sup 186/Re proposed by Collins. Our calculations of this odd-odd transitional nucleus are based on an axially-asymmetric (particle plus triaxial rotor) model for constructing the orbitals of the odd nucleons that couple under the influence of the residual neutron-proton interaction. We include pairing correlations in the determination of these orbitals by using the BCS approximation with newly determined pairing strengths. The matrix elements of the residual neutron-proton interaction are obtained using phenomenological spin-dependent delta function potentials of both surface and volume forms. We examine the sensitivity of the calculated low-excitation level structure of /sup 186/Re to the strength of these potentials. Calculated energy levels of /sup 186/Re will be presented and compared with experiment. The impact of our results on the proposed use of /sup 186/Re as a gamma-ray laser will be discussed. In addition, based upon these and other model calculations to be described, we assess the level of effort necessary in a full-scale theoretical search for a viable candidate nucleus for a gamma-ray laser. 17 refs., 1 fig., 3 tabs.
Date: January 1, 1988
Creator: Madland, D.G. & Strottman, D.D.
Object Type: Article
System: The UNT Digital Library
Testing geopressured geothermal reservoirs in existing wells. Wells of Opportunity Program final contract report, 1980-1981 (open access)

Testing geopressured geothermal reservoirs in existing wells. Wells of Opportunity Program final contract report, 1980-1981

The geopressured-geothermal candidates for the Wells of Opportunity program were located by the screening of published information on oil industry activity and through direct contact with the oil and gas operators. This process resulted in the recommendation to the DOE of 33 candidate wells for the program. Seven of the 33 recommended wells were accepted for testing. Of these seven wells, six were actually tested. The first well, the No. 1 Kennedy, was acquired but not tested. The seventh well, the No. 1 Godchaux, was abandoned due to mechanical problems during re-entry. The well search activities, which culminated in the acceptance by the DOE of 7 recommended wells, were substantial. A total of 90,270 well reports were reviewed, leading to 1990 wells selected for thorough geological analysis. All of the reservoirs tested in this program have been restricted by one or more faults or permeability barriers. A comprehensive discussion of test results is presented.
Date: January 1, 1982
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Survey of existing underground openings for in-situ experimental facilities (open access)

Survey of existing underground openings for in-situ experimental facilities

In an earlier project, a literature search identified 60 underground openings in crystalline rock capable of providing access for an in-situ experimental facility to develop geochemical and hydrological techniques for evaluating sites for radioactive waste isolation. As part of the current project, discussions with state geologists, owners, and operators narrowed the original group to 14. Three additional sites in volcanic rock and one site in granite were also identified. Site visits and application of technical criteria, including the geologic and hydrologic settings and depth, extent of the rock unit, condition, and accessibility of underground workings, determined four primary candidate sites: the Helms Pumped Storage Project in grandiodorite of the Sierra Nevada, California; the Tungsten Queen Mine in Precambrian granodiorite of the North Carolina Piedmont; the Mount Hope Mine in Precambrian granite and gneiss of northern New Jersey; and the Minnamax Project in the Duluth gabbro complex of northern Minnesota.
Date: July 1, 1981
Creator: Wollenberg, H.; Graf, A.; Strisower, B. & Korbin, G.
Object Type: Report
System: The UNT Digital Library
Feasibility of a continuous surface mining machine using impact breakers. First quarterly report, October 1-December 31, 1979 (open access)

Feasibility of a continuous surface mining machine using impact breakers. First quarterly report, October 1-December 31, 1979

This is the first quarterly report on the efforts to evaluate the feasibility of excavating coal and overburden from surface mines using impact breakers. The initial stages of the project are devoted to a literature search, equipment selection, test site selection, and conceptual test system design. Hence, this report details the progress made in these areas; the next quarter will see the finalization of Phase I. Included as appendices to this report are FMA internal reports on the individual mines visited. These reports are the basis of the test site selection, and have been censored here to remove data the mine operators deemed as confidential.
Date: January 1, 1980
Creator: Fisk, A. T.
Object Type: Report
System: The UNT Digital Library
Geothermal Reservoir Well Stimulation Program: technology transfer (open access)

Geothermal Reservoir Well Stimulation Program: technology transfer

To assess the stimulation technology developed in the oil and gas industry as to its applicability to the problems of geothermal well stimulation, a literature search was performed through on-line computer systems. Also, field records of well stimulation programs that have worked successfully were obtained from oil and gas operators and service companies. The results of these surveys are presented. (MHR)
Date: May 1, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Constructing a resilience index for the enhanced critical in Frastructure Protection Program. (open access)

Constructing a resilience index for the enhanced critical in Frastructure Protection Program.

Following recommendations made in Homeland Security Presidential Directive 7, which established a national policy for the identification and increased protection of critical infrastructure and key resources (CIKR) by Federal departments and agencies, the U.S. Department of Homeland Security (DHS) in 2006 developed the Enhanced Critical Infrastructure Protection (ECIP) program. The ECIP program aimed to provide a closer partnership with state, regional, territorial, local, and tribal authorities in fulfilling the national objective to improve CIKR protection. The program was specifically designed to identify protective measures currently in place in CIKR and to inform facility owners/operators of the benefits of new protective measures. The ECIP program also sought to enhance existing relationships between DHS and owners/operators of CIKR and to build relationships where none existed (DHS 2008; DHS 2009). In 2009, DHS and its protective security advisors (PSAs) began assessing CIKR assets using the ECIP program and ultimately produced individual protective measure and vulnerability values through the protective measure and vulnerability indices (PMI/VI). The PMI/VI assess the protective measures posture of individual facilities at their 'weakest link,' allowing for a detailed analysis of the most vulnerable aspects of the facilities (Schneier 2003), while maintaining the ability to produce an overall protective measures …
Date: October 14, 2010
Creator: Fisher, R. E.; Bassett, G. W.; Buehring, W. A.; Collins, M. J.; Dickinson, D. C.; Eaton, L. K. et al.
Object Type: Report
System: The UNT Digital Library
[News Clip: Strip search] captions transcript

[News Clip: Strip search]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10 P.M.
Date: November 16, 1980
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library