scholarly journals Studies on the Relationship between Growth and Substrate Oxidation Activity in Pseudomonas fragi and Pseudomonas aervginosa

1972 ◽  
Vol 27 (4) ◽  
pp. 577-584
Author(s):  
Yotaku GYOBU ◽  
Shigeichi YAMAZAKI ◽  
Kentaro KUBOTA
Keyword(s):  
Substrate Oxidation ◽  
Oxidation Activity ◽  
Pseudomonas Fragi ◽  
The Relationship

New insights into the relationship between photocatalytic activity and TiO2–GR composites

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 29201-29208 ◽  
Author(s):  
Yanyan Zhu ◽  
Yajun Wang ◽  
Wenqing Yao ◽  
Ruilong Zong ◽  
Yongfa Zhu
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Oxidation ◽  
Photocatalytic Reduction ◽  
Photoelectrochemical Properties ◽  
Oxidation Activity ◽  
Reduction Activity ◽  
The Relationship

Composited graphene cannot enhance the photocatalytic oxidation activity of TiO2, but can improve its photocatalytic reduction activity and photoelectrochemical properties.

The relationship between the structure and ethanol oxidation activity of Pt-Cu/C alloy catalysts

2017 ◽  
Vol 230 ◽  
pp. 58-72 ◽  
Author(s):  
M.R. Zamanzad Ghavidel ◽  
Alessandro H.A. Monteverde Videla ◽  
Stefania Specchia ◽  
E. Bradley Easton
Keyword(s):  
Ethanol Oxidation ◽  
Oxidation Activity ◽  
The Relationship ◽  
Alloy Catalysts

Performance Improvement of MFCs by Treatment of Carbon Cloth Anode with Ultrasonic or Spent Anolyte

2013 ◽  
Vol 815 ◽  
pp. 409-414
Author(s):  
Wei Feng Liu ◽  
Shao An Cheng
Keyword(s):  
Performance Improvement ◽  
Microbial Fuel Cells ◽  
Substrate Oxidation ◽  
Carbon Cloth ◽  
Electrode Polarization ◽  
High Current ◽  
Air Cathode ◽  
Oxidation Activity ◽  
Start Up ◽  
Current Densities

In order to improve the power generation of microbial fuel cells (MFCs), carbon cloth anode was treated with ultrasonic or spent anolyte in this work. The maximum power density of a single-chamber air-cathode MFC was improved from 611.5 mW/m2 to 754.3 mW/m2 and 811.7 mW/m2, and the reactor start-up time was shortened by 7.3% and 22.7% respectively after treatments of the anode with ultrasonic and spent anolyte. Polarization tests reveal that the treated anodes have a smaller electrode polarization at high current densities than the control. MFCs with the treated anodes exhibited lower internal resistances than the untreated anode, which may arise from the enhanced substrate oxidation activity and extra-cellular electron transfer efficiency on these anodes. Results from this study indicated that treatment of anode with ultrasonic or spent anolyte was a simple and effective approach for improving the performance of MFCs.

scholarly journals A Combined Raman Spectroscopic and Thermogravimetric Analysis Study on Oxidation of Coal with Different Ranks

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Weiqing Zhang ◽  
Shuguang Jiang ◽  
Christopher Hardacre ◽  
Peter Goodrich ◽  
Kai Wang ◽  
...  
Keyword(s):  
Thermogravimetric Analysis ◽  
Structural Information ◽  
Raman Band ◽  
Oxidation Activity ◽  
Raman Spectroscopic ◽  
Band Area ◽  
Structure Changes ◽  
Reactivity Indexes ◽  
Oxidation Properties ◽  
The Relationship

Raman spectroscopy and nonisothermal thermogravimetric analysis (TGA) measurements have been reported for different rank coals (lignite, bituminous coal, and anthracite) and the relationship between the measurements was examined. It was found that the Raman spectra parameters can be used to characterize structure changes in the different rank coals, such as the band area ratios based on the curve-fitted results. Higher ranked coal was found to have higher values ofIGR/IAllandIG+GR/IAllbut lower values ofID/I(G+GR),IDL/I(G+GR),IS+SL/I(G+GR), andI(GL+GL')/I(G+GR). The oxidation properties of the coal samples were characterized by the reactivity indexesTig,T20%, andTmaxfrom TGA data which were found to correlate well with the band area ratios ofIGR/IAll,IG+GR/IAll, andIS+SL/I(G+GR). Based on these correlations, the Raman band area ratios were found to correlate with the oxidation activity of coal providing additional structural information which can be used to understand the changes in the TGA measurements.

Interstellar gas in the central region of the Galaxy

1967 ◽  
Vol 31 ◽  
pp. 239-251 ◽  
Author(s):  
F. J. Kerr
Keyword(s):  
Central Region ◽  
Galactic Plane ◽  
Neutral Hydrogen ◽  
Continuum Emission ◽  
Galactic Centre ◽  
Interstellar Gas ◽  
Hydrogen Recombination ◽  
The Galaxy ◽  
Centre Region ◽  
The Relationship

A review is given of information on the galactic-centre region obtained from recent observations of the 21-cm line from neutral hydrogen, the 18-cm group of OH lines, a hydrogen recombination line at 6 cm wavelength, and the continuum emission from ionized hydrogen.Both inward and outward motions are important in this region, in addition to rotation. Several types of observation indicate the presence of material in features inclined to the galactic plane. The relationship between the H and OH concentrations is not yet clear, but a rough picture of the central region can be proposed.

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