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Search for Squarks and Gluinos in Events Containing Jets and a Large Imbalance in Transverse Energy

Description: Using data corresponding to an integrated luminosity of 79 pb{sup -1}, D0 has searched for events containing multiple jets and large missing transverse energy in p{bar p} collisions at {radical}s = 1.8 TeV at the Fermilab Tevatron collider. Observing no significant excess beyond what is expected from the standard model, they set limits on the masses of squarks and gluinos and on the model parameters m{sub 0} and m{sub 1/2}, in the framework of the minimal low-energy supergravity models of super… more
Date: February 1, 1999
Creator: Abbott, B.; Abolins, M.; Abramov, V.; Acharya, B. S.; Adam, I.; Adams, D. L. et al.
Partner: UNT Libraries Government Documents Department
open access

Human Mammary Luminal Epithelial Cells Contain Progenitors to Myoepithelial Cells

Description: The origin of the epithelial and myoepithelial cells in the human breast has not been delineated. In this study we have addressed whether luminal epithelial cells and myoepithelial cells are vertically connected, i.e., whether one is the precursor for the other. We used a primary culture assay allowing preservation of basic phenotypic traits of luminal epithelial and myoepithelial cells in culture. The two cell types were then separated immunomagnetically using antibodies directed against linea… more
Date: February 1, 1999
Creator: Pechoux, Christine; Gudjonsson, Thorarinn; Ronnov-Jessen, Lone; Bissell, Mina J & Petersen, Ole
Partner: UNT Libraries Government Documents Department
open access

Large-eddy simulation of the stable boundary layer and implications for transport and dispersion

Description: Large-eddy simulation (LES) of the evolving stable boundary layer (SBL) provides unique data sets for assessing the effects of stable stratification on transport and dispersion. The simulations include the initial development of the convective boundary layer (CBL) in the afternoon, followed by the development of an SBL after sunset with a strong, surface-based temperature inversion. The structure of the turbulence is modified significantly by negative buoyancy associated with the temperature in… more
Date: February 1, 1999
Creator: Cederwall, R T & Street, R L
Partner: UNT Libraries Government Documents Department
open access

The blending strategy for the plutonium immobilization program

Description: The Department of Energy (DOE) has declared approximately 38.2 tonnes of weapons-grade plutonium to be excess to the needs of national security, 14.3 tonnes of fuel- and reactor-grade plutonium excess to DOE needs, and anticipates an additional 7 tonnes to be declared excess to national security needs. Of this 59.5 tonnes, DOE anticipates that {approximately} 7.5 tonnes will be dispositioned as spent fuel at the Geologic Repository and {approximately} 2 tonnes will be declared below the safegua… more
Date: February 12, 1999
Creator: Ebbinghaus, B. B.; Edmunds, T. A.; Gentry, S.; Gray, L. W.; Riley, D. C.; Spingarn, J. et al.
Partner: UNT Libraries Government Documents Department
open access

Incoherent effects driven by the electron cloud

Description: As a result of the synchrotron radiation from a positively-charged beam, an electron cloud is expected to develop in the vacuum chamber from the combined effects of the photoelectric and secondary emission processes [1-3]. We provide here a first estimate of the electron-cloud effect on individual particles of the beam. We focus on the space-charge tune spread, the distortion of the beta function and the dispersion, and synchro-betatron coupling. We illustrate the effects with numerical applica… more
Date: February 1, 1999
Creator: Furman, M. A. & Zholents, A. A.
Partner: UNT Libraries Government Documents Department
open access

Integration of Environmental Restoration and Decontamination and Dismantlement Requirements at the INEEL

Description: In 1997, the Environmental Restoration Program at the Idaho National Engineering and Environmental Laboratory (INEEL) determined that it was necessary to remediate a Comprehensive Environmental Response and Liability Act (CERCLA) site to address the risk of subsurface petroleum contamination to human health and the environment. This cleanup project was conducted utilizing the Non-time Critical Removal Action process. Due to the close proximity (above the contaminated soil) of a number of above … more
Date: February 1, 1999
Creator: Reese, C. L. & Kuhns, D. J.
Partner: UNT Libraries Government Documents Department
open access

Monsters and babies from the first/IRAS survey

Description: Radio continuum emission at cm wavelengths is relatively little affected by extinction. When combined with far-infrared (FIR) surveys this provides for a convenient and unbiased method to select (radio-loud) AGN and starbursts deeply embedded in gas and dust-rich galaxies. Such radio-selected FIR samples are useful for detailed investigations of the complex relationships between (radio) galaxy and starburst activity, and to determine whether ULIRGs are powered by hidden quasars (monsters) or yo… more
Date: February 16, 1999
Creator: Van Bruegel, W J M
Partner: UNT Libraries Government Documents Department
open access

National Low-Level Waste Management Program Radionuclide Report Series

Description: The National Low Level Waste Management Program at the Idaho National Engineering and Environmental Laboratory has published a report containing key information about selected radionuclides that are most likely to contribute significantly to the radiation exposures estimated from a performance assessment of a low-level radioactive waste (LLW) disposal facility. The information includes physical and chemical characteristics, production means, waste forms, behavior of the radionuclide in soils, p… more
Date: February 1, 1999
Creator: Adams, J.P.; Carboneau, M.L. & Allred, W.E.
Partner: UNT Libraries Government Documents Department
open access

Evaluating In Situ Treatment Technologies for Buried Mixed Waste Remediation at the INEEL

Description: Mixed radioactive and hazardous wastes were buried at the Department of Energy's Idaho National Engineering and Environmental Laboratory (INEEL) Subsurface Disposal Area from 1952 to 1969. To begin the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) remediation process for the Subsurface Disposal Area, the Environmental Protection Agency (EPA) added the INEEL to its National Priorities List in 1989. DOE's Office of Environmental Restoration is planning several CER… more
Date: February 1, 1999
Creator: Nickelson, D. F.; Jorgensen, D. K.; Jessmore, J. J.; Hyde, R. A. & Farnsworth, R. K.
Partner: UNT Libraries Government Documents Department
open access

Deployment Evaluation Methodology for the Electrometallurgical Treatment of DOE-EM Spent Nuclear Fuel

Description: The Department of Energy - Environmental Management (DOE-EM) National Spent Nuclear Fuel Program (NSNFP) is charged with the disposition of legacy spent nuclear fuel (SNF). While direct repository disposal of the SNF is the preferred disposition option, some DOE SNF may need treatment to meet acceptance criteria at various disposition sites. The treatments may range from electrometallurgical treatment (EMT) and chemical dissolution to engineering controls. As a planning basis, a need is assumed… more
Date: February 1, 1999
Creator: Dahl, C.A.; Adams, J.P.; Rynearson, M.A. & Ramer, R.J.
Partner: UNT Libraries Government Documents Department
open access

Pressure vessels and piping systems: general requirements and documentation for testing

Description: Pressure vessel and piping systems are widely used throughout industry and research laboratories and contain a very large concentration of energy, and yet, despite the fact that their design and installation comply with federal, state and local regulations and recognized industrial standards, there continue to be serious pressure equipment failures. There are many reasons for pressure equipment failure: degradation and thinning of materials with usage, aging, hidden flaws during fabrication, et… more
Date: February 25, 1999
Creator: Blyukher, B; Borzileri, C; Brailovsky, Y & Tsicalo, A
Partner: UNT Libraries Government Documents Department
open access

Assessment of Field Experience Related to Pressurized Water Reactor Primary System Leaks

Description: This paper presents our assessment of field experience related to pressurized water reactor (PWR) primary system leaks in terms of their number and rates, how aging affects frequency of leak events, the safety significance of such leaks, industry efforts to reduce leaks, and effectiveness of current leak detection systems. We have reviewed the licensee event reports to identify the events that took place during 1985 to the third quarter of 1996, and reviewed related technical literature and vis… more
Date: February 1, 1999
Creator: Shah, Vikram N.; Ware, Arthur G.; Atwood, Cory L.; Sattison, Martin B.; Hartley, R. Scott & Hsu, Chuck
Partner: UNT Libraries Government Documents Department
open access

A Large Neutrino Detector Facility at the Spallation Neutron Source at Oak Ridge National Laboratory

Description: The ORLaND (Oak Ridge Large Neutrino Detector) collaboration proposes to construct a large neutrino detector in an underground experimental hall adjacent to the first target station of the Spallation Neutron Source (SNS) at the Oak Ridge National Laboratory. The main mission of a large (2000 ton) Scintillation-Cherenkov detector is to measure {bar {nu}}{sub {mu}} {r_arrow} {bar {nu}}{sub e} neutrino oscillation parameters more accurately than they can be determined in other experiments, or sign… more
Date: February 14, 1999
Creator: Efremenko, Y.V.
Partner: UNT Libraries Government Documents Department
open access

Early deterioration of coarse woody debris.

Description: Tainter, F.H., and J.W. McMinn. 1999. Early deterioration of coarse woody debris. In: Proc. Tenth Bien. South. Silv. Res. Conf. Shreveport, LA, February 16-18, 1999. Pp. 232-237 Abstract - Coarse woody debris (CWD) is an important structural component of southern forest ecosystems. CWD loading may be affected by different decomposition rates on sites of varying quality. Bolts of red oak and loblolly pine were placed on plots at each of three (hydric, mesic. and xerlc) sites at the Savannah Rive… more
Date: February 16, 1999
Creator: Tainter, Frank, H. & McMinn, James, W.
Partner: UNT Libraries Government Documents Department
open access

A new 14C calibration data set for the last deglaciation based on marine varves

Description: Varved sediments of the tropical Cariaco basin provide a new {sup 14}C calibration data set for the period of deglaciation (10,000 to 14,500 years before present: 10-14.5 cal ka BP). Independent evaluations of the Cariasco Basin calendar and {sup 14}C chronologies were based on the agreement of varve ages with the GISP2 ice core layer chronology for similar high-resolution paleoclimate records, in addition to {sup 14}C age agreement with terrestrial {sup 14}C dates, even during large climatic c… more
Date: February 22, 1999
Creator: Hughen, K A; Kashgarian, M; Lehman, S J; Overpeck, J T; Peterson, L C & Southon, J R
Partner: UNT Libraries Government Documents Department
open access

Improving (NEPA) the National Environmental Policy Act through ISO 14001

Description: Federal application of ISO 14001 and / or the EPA Code of Environmental Management Principles (CEMP) could substantially improve the mitigation and monitoring aspects of the NEPA process. In addition, application of those management systems could also enhance fulfillment of Section 101 goals of NEPA. An ISO 14001 Environmental Management System would provide for a plan to continually address and improve environmental aspects and impacts. The strong feedback and improvement loops in both CEMP an… more
Date: February 25, 1999
Creator: Wilkinson, C H
Partner: UNT Libraries Government Documents Department
open access

The VirtualwindoW: A Reconfigurable, Modular, Stereo Vision System

Description: An important need while using unmanned vehicles is the ability for the remote operator or observer to easily and accurately perceive the operating environment. A classic problem in providing a complete representation of the remote work area is sensory overload or excessive complexity in the human-machine interface. In addition, remote operations often benefit from depth perception capability while viewing or manipulating objects. Thus, there is an ongoing effort within the remote and teleoperat… more
Date: February 1, 1999
Creator: McKay, M. D.; Anderson, M. O.; Kinoshita, R. A. & Willis, W. D.
Partner: UNT Libraries Government Documents Department
open access

INEEL Radioactive Liquid Waste Reduction Program

Description: Reduction of radioactive liquid waste, much of which is Resource Conservation and Recovery Act (RCRA) listed, is a high priority at the Idaho National Technology and Engineering Center (INTEC). Major strides in the past five years have lead to significant decreases in generation and subsequent reduction in the overall cost of treatment of these wastes. In 1992, the INTEC, which is part of the Idaho National Environmental and Engineering Laboratory (INEEL), began a program to reduce the generati… more
Date: February 1, 1999
Creator: Millet, C. B.; Tripp, J. L.; Archibald, K. E.; Lauerhauss, L.; Argyle, M. D. & Demmer, R. L.
Partner: UNT Libraries Government Documents Department
open access

A microchannel electrophoresis DNA sequencing system

Description: Last year, the Joint Genome Institute was the third leading sequencing group in the world with over 20 million bases of human DNA finished. The goal of the human genome project is to sequence the 3 billion bases of human DNA sequence by 2003. In order to increase the DNA sequencing throughput of the Joint Genome Institute, we have developed a microchannel electrophoresis system. One critical new and unique element of this system is a process for production of 96 and 384 microchannels on bonded … more
Date: February 1, 1999
Creator: Balch, J. W.; Bass, M. S.; Brewer, L. R.; Copeland, A. C.; Davidson, J. C.; Fitch, J. P. et al.
Partner: UNT Libraries Government Documents Department
open access

Characterization of transient gain x-ray lasers

Description: We have performed numerical simulations of the transient collisional excitation Ni-like Pd 4d {r_arrow} 4p J = 0 {r_arrow} 1 147 {angstrom} laser transition recently observed at Lawrence Livermore National Laboratory (LLNL). The high gain {approximately}35 cm results from the experiment are compared with detailed modeling simulations from the 1-D RADEX code in order to better understand the main physics issues affecting the measured gain and x-ray laser propagation along the plasma column. Simu… more
Date: February 7, 1999
Creator: Dunn, J; Osterheld, A & Shlyaptsev, V
Partner: UNT Libraries Government Documents Department
open access

Beam tests of the 12 MHz RFQ RIB injector for ATLAS.

Description: In recent tests without beam, the Argonne 12 MHz split-coaxial radio-frequency quadruple (RFQ) achieved a cw intervane voltage of more than 100 kV, the design operating voltage for the device. This voltage is sufficient for the RFQ to function as the first stage of a RIB injector for the Argonne Tandem Linear Accelerator System (ATLAS). Previously reported beam dynamics calculations for the structure predict longitudinal emittance growth of only a few keV{center_dot}ns for beams of mass 132 and… more
Date: February 8, 1999
Creator: Kaye, R. A.
Partner: UNT Libraries Government Documents Department
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