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503 Matching Results
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Top physics: measurement of the tt-bar production cross section in pp-bar collisions at s**(1/2) = 1.96 tev using dilepton event
We report a measurement of the t{bar t} production cross section using dilepton events with jets and missing transverse energy in p{bar p} collisions at a center-of-mass energy of 1.96 TeV. Using a 197 {+-} 12 pb{sup -1} data sample recorded by the upgraded Collider Detector at Fermilab, we use two complementary techniques to select candidate events. We compare the number of observed events and selected kinematical distributions with the predictions of the standard model and find good agreement. The combined result of the two techniques yields a t{bar t} production cross section of 7.0{sub -2.1}{sup +2.4}(stat){sub -1.1}{sup _1.6}(syst) {+-} 0.4(lum) pb.
Date:
October 14, 2004
Creator:
Acosta, D.
Object Type:
Report
System:
The UNT Digital Library
Meteorological Support at the Savanna River Site
The Department of Energy (DOE) operates many nuclear facilities on large complexes across the United States in support of national defense. The operation of these many and varied facilities and processes require meteorological support for many purposes, including: for routine operations, to respond to severe weather events, such as lightning, tornadoes and hurricanes, to support the emergency response functions in the event of a release of materials to the environment, for engineering baseline and safety documentation, as well as hazards assessments etc. This paper describes a program of meteorological support to the Savannah River Site, a DOE complex located in South Carolina.
Date:
October 14, 2005
Creator:
Addis, Robert P.
Object Type:
Article
System:
The UNT Digital Library
Comparison of Experimental and Model Data for the Evaporation of a Synthetic Topopah Spring Tuff Pore Water, Yucca Mountain, NV
The evaporation of a range of synthetic pore water solutions representative of the potential high-level-nuclear-waste repository at Yucca Mountain, NV is being investigated. The motivation of this work is to understand and predict the range of brine compositions that may contact the waste containers from evaporation of pore waters, because these brines could form corrosive thin films on the containers and impact their long-term integrity. A relatively complex synthetic Topopah Spring Tuff pore water was progressively concentrated by evaporation in a closed vessel, heated to 95 C in a series of sequential experiments. Periodic samples of the evaporating solution were taken to determine the evolving water chemistry. According to chemical divide theory at 25 C and 95 C our starting solution should evolve towards a high pH carbonate brine. Results at 95 C show that this solution evolves towards a complex brine that contains about 99 mol% Na{sup +} for the cations, and 71 mol% Cl{sup -}, 18 mol% {Sigma}CO{sub 2}(aq), 9 mol% SO{sub 4}{sup 2-} for the anions. Initial modeling of the evaporating solution indicates precipitation of aragonite, halite, silica, sulfate and fluoride phases. The experiments have been used to benchmark the use of the EQ3/6 geochemical code in …
Date:
October 14, 2003
Creator:
Alai, M; Sutton, M & Carroll, S
Object Type:
Article
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 19, No. 40, Ed. 1 Thursday, October 14, 2004
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 14, 2004
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
A structure zone diagram including plasma based deposition and ion etching
An extended structure zone diagram is proposed that includes energetic deposition, characterized by a large flux of ions typical for deposition by filtered cathodic arcs and high power impulse magnetron sputtering. The axes are comprised of a generalized homologous temperature, the normalized kinetic energy flux, and the net film thickness, which can be negative due to ion etching. It is stressed that the number of primary physical parameters affecting growth by far exceeds the number of available axes in such a diagram and therefore it can only provide an approximate and simplified illustration of the growth condition?structure relationships.
Date:
October 14, 2009
Creator:
Anders, Andre
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 180, Ed. 1 Tuesday, October 14, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 14, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 168, Ed. 1 Thursday, October 14, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 14, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Classroom HVAC: Improving ventilation and saving energy -- field study plan
The primary goals of this research effort are to develop, evaluate, and demonstrate a very practical HVAC system for classrooms that consistently provides classrooms (CRs) with the quantity of ventilation in current minimum standards, while saving energy, and reducing HVAC-related noise levels. This research is motivated by the public benefits of energy efficiency, evidence that many CRs are under-ventilated, and public concerns about indoor environmental quality in CRs. This document provides a summary of the detailed plans developed for the field study that will take place in 2005 to evaluate the energy and IAQ performance of a new classroom HVAC technology. The field study will include measurements of HVAC energy use, ventilation rates, and IEQ conditions in 10 classrooms with the new HVAC technology and in six control classrooms with a standard HVAC system. Energy use and many IEQ parameters will be monitored continuously, while other IEQ measurements will be will be performed seasonally. Continuously monitored data will be remotely accessed via a LonWorks network. Instrument calibration plans that vary with the type of instrumentation used are established. Statistical tests will be employed to compare energy use and IEQ conditions with the new and standard HVAC systems. Strengths of this …
Date:
October 14, 2004
Creator:
Apte, Michael G.; Faulkner, David; Hodgson, Alfred T. & Sullivan, Douglas P.
Object Type:
Report
System:
The UNT Digital Library
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Civilian Conservation Corps Unveiling Ceremony
Photograph of a scene during the Civilian Conservation Corps statue unveiling ceremony at the Oklahoma History Center.
Date:
October 14, 2005
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History