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Network load of X terminals at CDF
As an aid to planning future usage of X terminals, the authors measured the network bandwidth used by X terminals on a single Ethernet in a typical application environment at Fermilab. The objectives were twofold. The first objective was to identify the impact of adding one more X terminal onto the CDF Ethernet . The second objective was to determine the maximum number of X terminals allowable on the CDF network. The findings reveal that an X terminal in this environment used, on average, 431 + /{minus}45 bytes/second. This is quite small compared to the utilizable bandwidth of the thinwire Ethernet network (375 Kilobytes/second, equivalent to 30% of total bandwidth). This amounts to an averaged load of .034% on the network per X terminal. This paper addresses the network load solely. It does not address the loads imposed by X terminals on the memory and CPU of the host systems.
Date:
March 1, 1992
Creator:
Abar, F.; O'Reilly, C. & Wicklund, E.
Object Type:
Report
System:
The UNT Digital Library
Network load of X terminals at CDF
As an aid to planning future usage of X terminals, the authors measured the network bandwidth used by X terminals on a single Ethernet in a typical application environment at Fermilab. The objectives were twofold. The first objective was to identify the impact of adding one more X terminal onto the CDF Ethernet . The second objective was to determine the maximum number of X terminals allowable on the CDF network. The findings reveal that an X terminal in this environment used, on average, 431 + /{minus}45 bytes/second. This is quite small compared to the utilizable bandwidth of the thinwire Ethernet network (375 Kilobytes/second, equivalent to 30% of total bandwidth). This amounts to an averaged load of .034% on the network per X terminal. This paper addresses the network load solely. It does not address the loads imposed by X terminals on the memory and CPU of the host systems.
Date:
March 1, 1992
Creator:
Abar, F.; O`Reilly, C. & Wicklund, E.
Object Type:
Report
System:
The UNT Digital Library
Design and performance of the SLD Vertex Detector, a 120 Mpixel tracking system
This paper describes the design, construction, and initial operation of the SLD Vertex Detector, the first device to employ charge coupled devices (CCDs) on a large scale in a high energy physics experiment. The Vertex Detector comprises 480 CCDs, with a total of 120 Mpixels. Each pixel functions as an independent particle detecting element, providing space point measurements of charged particle tracks with a typical precision of 5 {mu}m in each co-ordinate. The CCDs are arranged in four concentric cylinders just outside the beam pipe which surrounds the e{sup +}e{sup {minus}} collision point of the SLAC Linear Collider (SLC). The Vertex Detector is a powerful tool for distinguishing secondary vertex tracks, produced by decay in flight of heavy flavour hadrons or tau leptons, from tracks produced at the primary event vertex. Because the colliding beam environment imposes severe constraints on the design of such a detector, a six year R&D programme was needed to develop solutions to a number of problems. The requirements include a low-mass structure (to minimise multiple scattering) both for mechanical support and to provide signal paths for the CCDS; operation at low temperature with a high degree of mechanical stability; and relatively high speed CCD readout, …
Date:
March 1, 1992
Creator:
Agnew, G. D.; Cotton, R. & Damerell, C. J. S.
Object Type:
Article
System:
The UNT Digital Library
Boil-off experiments with the EIR-NEPTUN Facility: Analysis and code assessment overview report
The NEPTUN data discussed in this report are from core uncovery (boil-off) experiments designed to investigate the mixture level decrease and the heat up of the fuel rod simulators above the mixture level for conditions simulating core boil-off for a nuclear reactor under small break loss-of-coolant accident conditions. The first series of experiments performed in the NEPTUN test facility consisted of ten boil-off (uncovery) and one adiabatic heat-up tests. In these tests three parameters were varied: rod power, system pressure and initial coolant subcooling. The NEPTUN experiments showed that the external surface thermocouples do not cause a significant cooling influence in the rods to which they are attached under boil-off conditions. The reflooding tests performed later on indicated that the external surface thermocouples have some effect during reflooding for NEPTUN electrically heated rod bundle. Peak cladding temperatures are reduced by about 30--40C and quench times occur 20--70 seconds earlier than rods with embedded thermocouples. Additionally, the external surface-thermocouples give readings up to 20 K lower than those obtained with internal surface thermocouples (in the absence of external thermocouples) in the peak cladding temperature zone. Some of the boil-off data obtained from the NEPTUN test facility are used for the assessment …
Date:
March 1, 1992
Creator:
Aksan, S. N.; Stierli, F. & Analytis, G. T.
Object Type:
Report
System:
The UNT Digital Library
Optimizing proton therapy at the LBL medical accelerator
This Grant has marked the beginning of a multi-year study process expected to lead to design and construction of at least one, possibly several hospital-based proton therapy facilities in the United States.
Date:
March 1, 1992
Creator:
Alonso, J.
Object Type:
Report
System:
The UNT Digital Library
Optimizing proton therapy at the LBL medical accelerator. Final report
This Grant has marked the beginning of a multi-year study process expected to lead to design and construction of at least one, possibly several hospital-based proton therapy facilities in the United States.
Date:
March 1, 1992
Creator:
Alonso, J.
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 45, Number 7, March 1992
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
March 1992
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Newsletter of the Texas Chapter of the American Fisheries Society, Number 61, March 1992
Newsletter of the Texas Chapter of the American Fisheries Society containing information about the organization, membership, and field of aquaculture and ecosystem management.
Date:
March 27, 1992
Creator:
American Fisheries Society. Texas Chapter.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Electronic transport and mixed conductivity in perovskite type oxides
The goal of the investigation presented in this report is to study the inter-relationship between electrical conductivity, oxidation-reduction kinetics, defect structure, and composition of n- and p-type binary and ternary transition metal oxides. The experimental part of the investigation included specimen preparation, thermogravimetric measurements, X-ray diffraction, thermally stimulated current, DTA/TGA, optical absorption, transmission electron microscopy, electrical conductivity, and Seebeck measurements. The systems studied or being studied are LaMnO{sub 3}-LaCrO{sub 3}-LaCrO{sub 3}, (La,Ca)(Mn,Al)O{sub 3}, Y{sub 1-x}Ca{sub x}CrO{sub 3}, YMnO{sub 3}-CaMnO{sub 3}, and LaMnO{sub 3}-CaMnO{sub 3}.
Date:
March 3, 1992
Creator:
Anderson, H. U.; Nasrallah, M. M.; Sparlin, D. M. & Parris, P. E.
Object Type:
Report
System:
The UNT Digital Library
Electronic transport and mixed conductivity in perovskite type oxides. Progress report, October 1, 1990--June 30, 1992
The goal of the investigation presented in this report is to study the inter-relationship between electrical conductivity, oxidation-reduction kinetics, defect structure, and composition of n- and p-type binary and ternary transition metal oxides. The experimental part of the investigation included specimen preparation, thermogravimetric measurements, X-ray diffraction, thermally stimulated current, DTA/TGA, optical absorption, transmission electron microscopy, electrical conductivity, and Seebeck measurements. The systems studied or being studied are LaMnO{sub 3}-LaCrO{sub 3}-LaCrO{sub 3}, (La,Ca)(Mn,Al)O{sub 3}, Y{sub 1-x}Ca{sub x}CrO{sub 3}, YMnO{sub 3}-CaMnO{sub 3}, and LaMnO{sub 3}-CaMnO{sub 3}.
Date:
March 3, 1992
Creator:
Anderson, H. U.; Nasrallah, M. M.; Sparlin, D. M. & Parris, P. E.
Object Type:
Report
System:
The UNT Digital Library
Comparison of experimental and analytical temperatures achieved by DT-18 and PC-1 shipping containers during hypothetical thermal accident tests
Temperatures were monitored at various locations on DT-18 and PC-1 shipping packages during furnace tests at the Y-12 Plant in Oak Ridge, Tennessee. The furnace tests are intended to simulate hypothetical thermal accident conditions specified in Title 10 CFR, Pt. 71.73 (c)(3). Maximum temperatures of the outer containers ranged from 750 to 965{degrees}C while typical maximum temperatures recorded on the inner containers were 60 to 77{degrees}C. One exceptionally high temperature of 196{degrees}C occurred on the PC-1 inner container. Heating 7.1 models of both the DT-18 and PC-1 packages were developed. Models with and without heat generation in the inner containers were developed for each shipping package. The models with heat generation are intended to simulate condensation and convection of hot vapors generated during the heating of the Celotex{trademark} insulating material used in the packages. In general, the analytical models calculate temperatures for the outer containers which agree well with the test data. The HEATING models with and without heat generation bound the inner container test data. These findings are significant in that they lead to the conclusion that heat is transferred to the inner containers through a mechanism other than conduction alone. The high temperature of 196{degrees}C recorded at the …
Date:
March 1, 1992
Creator:
Anderson, J. C.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Celotex{trademark} charring depths in the DT-18 shipping container
Celotex {trademark}, the insulating material used between the outer and inner containers of the DT-18 shipping package, undergoes decomposition, combustion, or both when heated to temperatures exceeding 150{degrees}C. Several DT-18 packages that had previously undergone hypothetical thermal accident testing were opened and Celotex {trademark} charring depths ranging from {1/2} to 1 {1/2} in. were recorded. The majority of char depth data taken was between 3/4 and 1 {1/4} in. One-dimensional HEATING 7.1 models of the DT-18 package were developed. HEATING predicts charring depths of 1 to 1 1/8 in., which are in good agreement with measured values. Both experimental and analytical data indicate that charring is fairly uniform over the DT-18 package. 7 refs.
Date:
March 1, 1992
Creator:
Anderson, J. C.
Object Type:
Report
System:
The UNT Digital Library
Comparison of experimental and analytical temperatures achieved by DT-18 and PC-1 shipping containers during hypothetical thermal accident tests
Temperatures were monitored at various locations on DT-18 and PC-1 shipping packages during furnace tests at the Y-12 Plant in Oak Ridge, Tennessee. The furnace tests are intended to simulate hypothetical thermal accident conditions specified in Title 10 CFR, Pt. 71.73 (c)(3). Maximum temperatures of the outer containers ranged from 750 to 965{degrees}C while typical maximum temperatures recorded on the inner containers were 60 to 77{degrees}C. One exceptionally high temperature of 196{degrees}C occurred on the PC-1 inner container. Heating 7.1 models of both the DT-18 and PC-1 packages were developed. Models with and without heat generation in the inner containers were developed for each shipping package. The models with heat generation are intended to simulate condensation and convection of hot vapors generated during the heating of the Celotex{trademark} insulating material used in the packages. In general, the analytical models calculate temperatures for the outer containers which agree well with the test data. The HEATING models with and without heat generation bound the inner container test data. These findings are significant in that they lead to the conclusion that heat is transferred to the inner containers through a mechanism other than conduction alone. The high temperature of 196{degrees}C recorded at the …
Date:
March 1, 1992
Creator:
Anderson, J.C.
Object Type:
Report
System:
The UNT Digital Library
Investigation of Celotex trademark charring depths in the DT-18 shipping container
Celotex {trademark}, the insulating material used between the outer and inner containers of the DT-18 shipping package, undergoes decomposition, combustion, or both when heated to temperatures exceeding 150{degrees}C. Several DT-18 packages that had previously undergone hypothetical thermal accident testing were opened and Celotex {trademark} charring depths ranging from {1/2} to 1 {1/2} in. were recorded. The majority of char depth data taken was between 3/4 and 1 {1/4} in. One-dimensional HEATING 7.1 models of the DT-18 package were developed. HEATING predicts charring depths of 1 to 1 1/8 in., which are in good agreement with measured values. Both experimental and analytical data indicate that charring is fairly uniform over the DT-18 package. 7 refs.
Date:
March 1, 1992
Creator:
Anderson, J.C.
Object Type:
Report
System:
The UNT Digital Library
The Eastern Statesman (Wilburton, Okla.), Vol. 67, No. 14, Ed. 1 Thursday, March 5, 1992
Biweekly student newspaper from Eastern Oklahoma State College in Wilburton, Oklahoma that includes local, state, and campus news along with advertising.
Date:
March 5, 1992
Creator:
Anderson, Rob & Heath, Melissa
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Eastern Statesman (Wilburton, Okla.), Vol. 67, No. 15, Ed. 1 Thursday, March 26, 1992
Biweekly student newspaper from Eastern Oklahoma State College in Wilburton, Oklahoma that includes local, state, and campus news along with advertising.
Date:
March 26, 1992
Creator:
Anderson, Rob & Heath, Melissa
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Monitoring genetic damage to ecosystems from hazardous waste
Applications of ecological toxicity testing to hazardous waste management have increased dramatically over the last few years, resulting in a greater awareness of the need for improved biomonitoring techniques. Our laboratory is developing advanced techniques to assess the genotoxic effects of environmental contamination on ecosystems. We have developed a novel mutagenesis assay using the nematode Caenorhabditis elegans, which is potentially applicable for multimedia studies in soil, sediment, and water. In addition, we are conducting validation studies of a previously developed anaphase aberration test that utilizes sea urchin embryos. Other related efforts include field validation studies of the new tests, evaluation of their potential ecological relevance, and analysis of their sensitivity relative to that of existing toxicity tests that assess only lethal effects, rather than genetic damage.
Date:
March 1, 1992
Creator:
Anderson, S. L.
Object Type:
Article
System:
The UNT Digital Library
[Letter from Suzanne Antley to the Texas Human Rights Foundation Search Committee, March 23, 1992]
Letter from Suzanne Antley to the Search Committee of the Texas Human Rights Foundation discussing the open position of litigator at the foundation. Also contained in the document is Antley's resume.
Date:
March 23, 1992
Creator:
Antley, Suzanne
Object Type:
Letter
System:
The Portal to Texas History
Correlation of the Na/K ratio in geothermal well waters with the thermodynamic properties of low albite and potash feldspar
The Na/K ratio in geothermal well waters provides a better estimate of the relative stability of low albite and potash feldspar than do predictions from calorimetry and high temperature phase equilibria. The calculated saturation indices from field data for low albite, potash feldspar suggest that {Delta}G{sub f,298}{sup o} for the latter should be revised to {minus}3748.6{plus_minus}3.7 kJ.mol{sup {minus}1}.
Date:
March 1, 1992
Creator:
Apps, J. A. & Chang, G. M.
Object Type:
Article
System:
The UNT Digital Library
Correlation of the Na/K Ratio in Geothermal Well Waters With the Thermodynamic Properties of Low Albite and Potash Feldspar
The Na/K ratio in geothermal well waters provides a better estimate of the relative stability of low albite and potash feldspar than do predictions from calorimetry and high temperature phase equilibria. The calculated saturation indices from field data for low albite, potash feldspar suggest that [Delta]G[sub f,298][sup o] for the latter should be revised to [minus]3748.6[plus minus]3.7 kJ.mol[sup [minus]1].
Date:
March 1, 1992
Creator:
Apps, J. A. & Chang, G. M.
Object Type:
Article
System:
The UNT Digital Library
[2012.201.B0931.0661]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dr. David and Linda Newsome are shown with one of Linda's Belgian sheep dogs." Image is a color image of a man wearing a short sleeved button down shirt and tie kneeling next to a doctors bag and wearing a stethoscope. Between him and a crouching woman wearing a blue sweater is a light brown furry puppy. Behind in the back of the scene is a van that has a sign on the side reading "House Calls - Hospital Care - Dogs and Cats" with a phone number.
Date:
March 23, 1992
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Jackson County Courthouse
Photograph of the exterior of the Jackson County Courthouse and the "Crossing the Red" statue.
Date:
March 1992
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Jackson County Courthouse
Photograph of the exterior of the Jackson County Courthouse and the "Crossing the Red" statue.
Date:
March 1992
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0108.0415]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Keeping her flower beds in shape helps keep her in shape, says Pauline Brock of Northwest Oklahoma City."
Date:
March 26, 1992
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History