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Thermal analysis of the DES camera focal plate.
A design specification for the DES Camera focal plate is to keep the deformation of the plate to less than 30 microns under operating conditions. Figure 1 shows the assembly of the focal plate, the support bipods and support ring, and the copper braid assemblies. Several studies were done to examine the deformation of the focal plate under different thermal and structural constraints. Simple hand calculations were also performed as a check of the finite element model and results. The main goal of this analysis was to determine the deformation of the plate and to understand what thermal and structural conditions are causing the deformation.
Date:
February 13, 2008
Creator:
Guarino, V.
System:
The UNT Digital Library
Results of groundwater monitoring and vegetation sampling at Everest, Kansas, in 2009 .
In April 2008, the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) conducted groundwater sampling for the analysis of volatile organic compounds (VOCs) in the existing network of monitoring points at Everest, Kansas (Argonne 2008). The objective of the 2008 investigation was to monitor the distribution of carbon tetrachloride contamination in groundwater previously identified in CCC/USDA site characterization and groundwater sampling studies at Everest in 2000-2006 (Argonne 2001, 2003, 2006a,b). The work at Everest is being undertaken on behalf of the CCC/USDA by Argonne National Laboratory, under the oversight of the Kansas Department of Health and Environment (KDHE). The findings of the 2008 investigation were as follows: (1) Measurements of groundwater levels obtained manually and through the use of automatic recorders demonstrated a consistent pattern of groundwater flow - and inferred contaminant migration - to the north-northwest from the former CCC/USDA facility toward the Nigh property, and then west-southwest from the Nigh property toward the intermittent creek that lies west of the former CCC/USDA facility and the Nigh property. (2) The range of concentrations and the areal distribution of carbon tetrachloride identified in the groundwater at Everest in April 2008 were generally consistent with previous results. The results …
Date:
May 13, 2010
Creator:
LaFreniere, L. M. & Division, Environmental Science
System:
The UNT Digital Library
Ultra-Fast Boriding for Improved Efficiency and Reduced Emissions in Materials Processing Industries
None
Date:
November 13, 2012
Creator:
Erdemir, A.; Eryillmaz, O. & Sista, V. (Energy Systems)
System:
The UNT Digital Library
MOCFE-Bone: the 3D MOC mini-application for exascale research
None
Date:
February 13, 2013
Creator:
Wolters, E. & Smith, M. (Nuclear Engineering Division)
System:
The UNT Digital Library
Petascale, Adaptive Cfd (ALCF) ESP Technical Report): ALCF-2 Early Science Program Technical Report
None
Date:
May 13, 2013
Creator:
Jansen, K.E.; Rasquin, M. (LCF) & Boulder), (University of Colorado
System:
The UNT Digital Library