Supergene oxidation-leaching and secondary sulfide enrichment in the SarCheshmeh porphyry Cu-Mo deposit generated a supergene profile to depths of 20 to 80 meters with oxide ore reserve about 22 Mt. @1.08% Cu and sulfides ore [email protected]% Cu. Geochemical distribution and behavior of trace metals associated with Cu namely Mo, Au, and Ag in the supergene profile of the SarCheshmeh were po...

We have examined the bonding and orientation of thiophene on Mo(100) following chemisorption at 180 K. At these temperatures, thiophene adsorbs predominantly molecularly, and a shift in the binding energy of peaks due to molecular a-orbitals in the photoelectron spectrum suggests that at least part of the bonding of the thiophene molecule to the surface involves these orbitals. Measurements of ...

The bonding in monomeric and dimeric molecular compounds of Cr, Mo, W and U is explored using the Quantum Theory of Atoms-in-Molecules (QTAIM). The metal-ligand and metal-metal bond critical point properties ρb, ∇(2)ρb and Hb, and also the bond delocalisation indices δ(A, B), are correlated with the data from previous Ziegler-Rauk energy decomposition studies of the same systems. For M2X6 (M = ...

Supported transition metal oxides and vanadium-containing multi-metallic oxides were investigated to develop new catalysts for the catalytic destruction of highly toxic polychlorinated aromatic pollutants such as polychlorinated benzenes, polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs), and/or biphenyls (PCBs) from waste gases. The decomposition of 1,2-dichlorobenzene (Cl2Bz) w...

The optical and magneto-optic (MO) properties of the praseodymium (Pr)-dopant effect on bismuth-substituted yttrium iron garnet (Bi:YIG) films coated fused silica glass substrates by using metal-organic-decomposition (MOD) method with chemical solutions were investigated at 1310 1550-nm wavelength regions. maximum Faraday rotation angle Pr-codoped Bi:YIG (Pr,By:YIG) film was observed to be 0.09...

The ability to build topic specific language models, rapidly and with minimal human effort, is a critical need for fast deployment and portability of ASR across different domains. The World Wide Web (WWW) promises to be an excellent textual data resource for creating topic specific language models. In this paper we describe an iterative web crawling approach which uses a competitive set of adap...

The rear interface of kesterite absorbers with Mo back contact represents one the possible sources nonradiative voltage losses (ΔVoc,nrad) because reported decomposition reactions, an uncontrolled growth MoSe2, or a nonoptimal electrical high recombination. Several intermediate layers (IL), such as MoO3, TiN, and ZnO, have been tested to mitigate these issues, efficiency improvements reported. ...

Abstract The economic viability of the electrochemical chlorate process depends on toxic chromate to induce cathodic selectivity hydrogen and mitigate reduction hypochlorite or chlorate. In this study, it is shown that performance a pilot plant for production can be sustained when 1000-fold in concentration compensated by addition molybdate. Laboratory measurements employing Quartz Crystal Micr...