Graphene with a Brunauer similar to Emmett-Teller (BET) specific surface area of 264 m(2) g(-1) has been used as anodic catalyst of microbial fuel cells (MFCs) based on Escherichia coli (ATCC 25922). The electrochemic...
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Graphene with a Brunauer similar to Emmett-Teller (BET) specific surface area of 264 m(2) g(-1) has been used as anodic catalyst of microbial fuel cells (MFCs) based on Escherichia coli (ATCC 25922). The electrochemical activities of plain stainless steel mesh (SSM), polytetrafluoroethylene (PTFE) modified SSM (PMS) and graphene modified SSM (GMS) have been investigated by cyclic voltammetry (CV), discharge experiment and polarization curve measurement. The GMS shows better electrochemical performance than those of SSM and PMS. The MFC equipped with GMS anode delivers a maximum power density of 2668 mW m(-2), which is 18 times larger than that obtained from the MFC with the SSM anode and is 17 times larger than that obtained from the MFC with the PMS anode. Scanning electron microscopy (SEM) results indicate that the increase in power generation could be attributed to the high surface area of anode and an increase in the number of bacteria attached to anode. (C) 2011 Elsevier B.V. All rights reserved.
In our present study, using molecular marker technology, we aimed to identify the genetic factors controlling the length of coleorhiza during seed germination based on a population of recombinant inbred lines (RILs) d...
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In our present study, using molecular marker technology, we aimed to identify the genetic factors controlling the length of coleorhiza during seed germination based on a population of recombinant inbred lines (RILs) derived from Xinzi517 x B73. The genetic linkage map was constructed with 255 simple sequence repeat markers, which covered 2399 cM of maize genome with an average mapping distance of 9.4 cM. We detected a total of 10 putative quantitative trait loci (QTLs) using composite interval mapping, among which six QTLs were detected on chromosomes 1, 2, 7 and 9 (10 degrees C, 28 day), whereas four QTLs were detected on chromosomes 1, 2, 3 and 9 (25 degrees C, 7 day). The percentage of phenotypic variance (R-2) explained by QTL ranged from 5.18 to 16.67 (10 degrees C, 28 day) and 6.73-11.46 (25 degrees C, 7 day), respectively. These results provided the foundation for detecting additional QTL and discovering more favourable alleles for high vigour seed of maize in future study.
After several decades of research, the traditional modeling methods, such as geometric model, feature model and integrated product model, can't fully meet the integrated product information and the related knowled...
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ISBN:
(纸本)9783037850770
After several decades of research, the traditional modeling methods, such as geometric model, feature model and integrated product model, can't fully meet the integrated product information and the related knowledge that required. Meanwhile, lack of semantics, is not conducive to the using and sharing of knowledge. Semantic-based product design and process decision can shorten the product development cycle, reduce costs and allow the computer to participate in the design. Based on building of complex electronic products ontology and already been built OWL ontology file introduced into database, this paper combines Ontology model of complex electronic products with the semantic Web, studies a network design model based on the semantic Web and develops a product design and process decision Web platform based on semantic. The platform can realize product design, semantic search of the resources and decision of parts machining process, thus, to improve the productivity and enhance the efficiency and competitiveness of the company by the system.
We report the characteristics and electrochemical sensing features of iron-tetrasulfophthalocyanine (FeTSPc)-functionalized graphene nanosheets (GNs) composites. The noncovalently FeTSPc-functionalized GNs (GNs-FeTSPc...
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We report the characteristics and electrochemical sensing features of iron-tetrasulfophthalocyanine (FeTSPc)-functionalized graphene nanosheets (GNs) composites. The noncovalently FeTSPc-functionalized GNs (GNs-FeTSPc) possess an improved solubility in aqueous solution and the GNs-FeTSPc film electrode exhibits an enhanced electrocatalytic activity towards oxidation of isoniazid (INZ) and uric acid (UA). Direct electrochemistry of GNs-FeTSPc nanocomposites shows that GNs could facilitate the electron transfer between glass carbon electrodes (GCEs) and the electroactive center of FeTSPc. Additionally, a comparative study using different carbon nanomaterials reveals that the functionalized GNs have better electrocatalytic ability than that of multi-walled carbon nanotubes (MWCNTs) and graphite while no obvious enhancement is obtained on mesoporous carbons (MPC) and fullerene (C-60). Hence, the GNs with unusual structure are suitable for preparing functionalized nanocomposite as a promising electrochemical sensing platform. (c) 2010 Elsevier B.V. All rights reserved.
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