The Total Charge of Carbon and Nitrogen Atoms in the Amide Bonds Acts as a New Approach to Understand the Mobile Proton Model

2013 ◽  
Vol 46 (6) ◽  
pp. 408-414 ◽  
Author(s):  
Qifei Xu ◽  
Wansong Zong ◽  
Longping Shi ◽  
Rutao Liu
2011 ◽  
Vol 79 (5) ◽  
pp. 1915-1919 ◽  
Author(s):  
Meijie Wang ◽  
Pengjun Zhang ◽  
Wansong Zong ◽  
Qifei Xu ◽  
Rutao Liu

2020 ◽  
Vol 81 (3) ◽  
pp. 550-563
Author(s):  
Simone Perazzoli ◽  
José Pedro de Santana Neto ◽  
Hugo M. Soares

Abstract Bioelectrochemical systems are emerging as a promising and friendly alternative to convert the energy stored in wastewater directly into electricity by microorganisms and utilize it in situ to drive desalination. To better understand such processes, we propose the development of an anoxic biocathode microbial desalination Cell for the conversion of carbon- and nitrogen-rich wastewaters into bioenergy and to perform salt removal. Our results demonstrate a power output of 0.425 W m−3 with desalination, organic matter removal and nitrate conversion efficiencies of 43.69, 99.85 and 92.11% respectively. Microbiological analysis revealed Proteobacteria as the dominant phylum in the anode (88.45%) and biocathode (97.13%). While a relatively higher bacterial abundance was developed in the anode chamber, the biocathode showed a greater variety of microorganisms, with a predominance of Paracoccus (73.2%), which are related to the denitrification process. These findings are promising and provide new opportunities for the development and application of this technology in the field of wastewater treatment to produce cleaner water and conserve natural resources.


1963 ◽  
Vol 9 (5) ◽  
pp. 566-572 ◽  
Author(s):  
J L Karlsson

Abstract A new approach is described for the detection of abnormal metabolites in the urine of patients with known or suspected metabolic disorders. Distribution curves are presented for nonurea organic carbon and nitrogen which form a basis for judging whether grossly abnormal amounts of organic materials are present in the urine. Families with recurrent mental retardation have been identified whose mental defect may be on an unknown metabolic basis.


2020 ◽  
Vol 130 (4) ◽  
pp. 626-632
Author(s):  
E. M. Solovyeva ◽  
A. Y. Pereverzev ◽  
M. V. Gorshkov ◽  
O. V. Boyarkin

2015 ◽  
Vol 30 (1) ◽  
pp. 310-314 ◽  
Author(s):  
L. J. Bay ◽  
S. H. Chan ◽  
T. Walczyk

A new approach to normalize carbon and nitrogen isotope ratios measured by EA-CF-IRMS without using a reference gas for correction of instrumental drifts and instrumental isotope fractionation.


2010 ◽  
Vol 16 (12) ◽  
pp. 687-692 ◽  
Author(s):  
Wansong Zong ◽  
Rutao Liu ◽  
Feng Sun ◽  
Pengjun Zhang ◽  
Qifei Xu

Author(s):  
Massimo Nespolo

A new route to apply the charge distribution (CHARDI) method to structures based on heteroligand coordination polyhedra is presented. The previous algorithm used scale factors computed in an iterative way based on the assumption (which turned out to be not always correct) that a real over–under bonding effect affects mainly the anionic charges of each single anion, without grossly modifying the total charge of each type of anion. The new, more general approach is not based on anya prioriassumption but treats separately the homoligand sub-polyhedra and attributes to each type of atom a fraction of the charge of the atom coordinated to it, computed in a self-consistent iterative way. The distinction between the bonding and non-bonding contact is also redefined in terms of the mean fictive ionic radii (MEFIR), without the need of an empirical parameter, used in the previous algorithm. CHARDI equations are generalized in terms of the new approach and a series of examples is presented.


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