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Surface species formed by the adsorption and dissociation of water molecules on Ru(0001) surface containing a small coverage of carbon atoms studied by scanning tunneling microscopy

Description: The adsorption and dissociation of water on a Ru(0001) surface containing a small amount ({le} 3 %) of carbon impurities was studied by scanning tunneling microscopy (STM). Various surface species are formed depending on the temperature. These include molecular H{sub 2}O, H{sub 2}O-C complexes, H, O, OH and CH. Clusters of either pure H{sub 2}O or mixed H{sub 2}O-OH species are also formed. Each of these species produces a characteristic contrast in the STM images and can be identified by exper… more
Date: April 26, 2008
Creator: UCB, Dept of Materials Science and Engineering
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

IKNO, a user facility for coherent terahertz and UV synchrotron radiation

Description: IKNO (Innovation and KNOwledge) is a proposal for a multi-user facility based on an electron storage ring optimized for the generation of coherent synchrotron radiation (CSR) in the terahertz frequency range, and of broadband incoherent synchrotron radiation (SR) ranging from the IR to the VUV. IKNO can be operated in an ultra-stable CSR mode with photon flux in the terahertz frequency region up to nine orders of magnitude higher than in existing 3rd generation light sources. Simultaneously to … more
Date: April 26, 2008
Creator: Sannibale, Fernando; Marcelli, Augusto & Innocenzi, Plinio
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Metal impacts on microbial biomass in the anoxic sediments of a contaminated lake

Description: Little is known about the long-term impacts of metal contamination on the microbiota of anoxic lake sediments. In this study, we examined microbial biomass and metals (arsenic, cadmium, chromium, copper, iron, lead, manganese, and zinc) in the sediments of Lake DePue, a backwater lake located near a former zinc smelter. Sediment core samples were examined using two independent measures for microbial biomass (total microscopic counts and total phospholipid-phosphate concentrations), and for vari… more
Date: April 26, 2008
Creator: Gough, Heidi L.; Dahl, Amy L.; Nolan, Melissa A.; Gaillard, Jean-Francois & Stahl, David A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department

[Children riding in barrel cart]

Description: Photograph of children riding in a plastic barrel that was made into a mini train car in Quakertown Park. There are other children and parents following behind them and standing under the trees near the Denton Civic Center. They are all gathered for the Denton Arts & Jazz Festival.
Date: April 26, 2008
Creator: Evans, Rebecca
Item Type: Refine your search to only Photograph
Location: 33.219572 -97.128539
Partner: UNT Libraries Special Collections

[Clown making balloon dog]

Description: Photograph of a clown dressed in a red and white striped shirt with overalls covered in buttons. He is putting the finishing touches on a bright pink balloon dog.
Date: April 26, 2008
Creator: Evans, Rebecca
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
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