نتایج جستجو برای: lead sulfide

تعداد نتایج: 356182  

Journal: :Denki Kagaku oyobi Kogyo Butsuri Kagaku 1979

Journal: :Applied microbiology 1964
E KUESTER S T WILLIAMS

The ability of streptomycetes to produce hydrogen sulfide is generally used for taxonomic purposes. It was found that the previously used method, the blackening of Peptone Iron Agar, does not clearly indicate formation of hydrogen sulfide. It was shown that the blackening of a lead acetate strip is the most accurate indicator for H(2)S-producing streptomycetes. A great variety of organic and in...

Journal: :Journal of the American Chemical Society 2008

Crude glycerol (CG) is an abundantly available and cheap by-product from biodiesel production. Value-added applications for CG are highly wanted by industry and several processes such as the use of CG for enhanced oil recovery have been proposed. The aim of this study was to evaluate the sulfide production of sulfate-reducing bacteria (SRB) indigenous to oil reservoirs using CG as substrate. Th...

2016
Bo Hou Yuljae Cho Byung Sung Kim John Hong Jong Bae Park Se Jin Ahn Jung Inn Sohn SeungNam Cha Jong Min Kim

High-performance cascaded-junction quantum dot solar cells (CJQDSCs) are fabricated from as-prepared highly monodispersed lead sulfide QDs. The cells have a high power conversion of 9.05% and a short-circuit current density of 32.51 mA cm-2. A reliable and effective stratagem for fabricating high-quality lead sulfide quantum dots (QD) is explored through a "monomer" concentration-controlled exp...

Journal: :journal of petroleum science and technology 2015
sidnei santos martin g. liebensteiner leila souza catia ramos josilene matos

crude glycerol (cg) is an abundantly available and cheap by-product from biodiesel production. value-added applications for cg are highly wanted by industry and several processes such as the use of cg for enhanced oil recovery have been proposed. the aim of this study was to evaluate the sulfide production of sulfate-reducing bacteria (srb) indigenous to oil reservoirs using cg as substrate. th...

2014
Sergii Yakunin Dmitry N. Dirin Loredana Protesescu Mykhailo Sytnyk Sajjad Tollabimazraehno Markus Humer Florian Hackl Thomas Fromherz Maryna I. Bodnarchuk Maksym V. Kovalenko Wolfgang Heiss

Highly photoconductive thin films of inorganic-capped PbS nanocrystal quantum dots (QDs) are reported. Stable colloidal dispersions of (NH4)3AsS3-capped PbS QDs were processed by a conventional dip-coating technique into a thin homogeneous film of electronically coupled PbS QDs. Upon drying at 130 °C, (NH4)3AsS3 capping ligands were converted into a thin layer of As2S3, acting as an infrared-tr...

Journal: :Molecular cancer research : MCR 2007
Matias S Attene-Ramos Elizabeth D Wagner H Rex Gaskins Michael J Plewa

Hydrogen sulfide (H(2)S) is produced by indigenous sulfate-reducing bacteria in the large intestine and represents an environmental insult to the colonic epithelium. Clinical studies have linked the presence of either sulfate-reducing bacteria or H(2)S in the colon with chronic disorders such as ulcerative colitis and colorectal cancer, although at this point, the evidence is circumstantial and...

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