Author
Guanghao Chen
Other affiliations: Sun Yat-sen University, Chinese Academy of Sciences, Tohoku University ...read more
Bio: Guanghao Chen is an academic researcher from Hong Kong University of Science and Technology. The author has contributed to research in topics: Sewage treatment & Denitrification. The author has an hindex of 45, co-authored 308 publications receiving 7062 citations. Previous affiliations of Guanghao Chen include Sun Yat-sen University & Chinese Academy of Sciences.
Papers published on a yearly basis
Papers
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TL;DR: Characterization using Fourier transform infrared spectroscopy revealed the dominance of amide bands and/or polysaccharide-associated bands in the EPS of AnAOB and AerAOB, and can potentially expand the knowledge of the microbial aggregates responsible for autotrophic nitrogen removal.
315 citations
TL;DR: This review not only summarizes information from the current sulfur conversion-based biotechnologies for further optimization and understanding, but also offers new directions for sulfur related biotechnology development.
284 citations
TL;DR: A lab-scale evaluation of a novel and integrated biological nitrogen removal process: the sulfate reduction, autotrophic denitrification and nitrification integrated (SANI) process that was recently proposed for saline sewage treatment found that accumulation of elementary sulfur and loss of hydrogen sulfide in the system were negligible.
186 citations
TL;DR: The OSA system performed better than the reference system with respect to the chemical oxygen demand removal efficiency and sludge settleability and may present a potential low-cost solution to the excess sludge problem in an activated sludge process.
183 citations
TL;DR: The disintegration of AGS was associated with two possible causes: 1) reduction in net tyrosine production in the EPS and 2) a major microbial community shift including reduction in filamentous bacteria leading to the collapse of granule structure.
167 citations
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Journal Article•
TL;DR: FastTree as mentioned in this paper uses sequence profiles of internal nodes in the tree to implement neighbor-joining and uses heuristics to quickly identify candidate joins, then uses nearest-neighbor interchanges to reduce the length of the tree.
Abstract: Gene families are growing rapidly, but standard methods for inferring phylogenies do not scale to alignments with over 10,000 sequences. We present FastTree, a method for constructing large phylogenies and for estimating their reliability. Instead of storing a distance matrix, FastTree stores sequence profiles of internal nodes in the tree. FastTree uses these profiles to implement neighbor-joining and uses heuristics to quickly identify candidate joins. FastTree then uses nearest-neighbor interchanges to reduce the length of the tree. For an alignment with N sequences, L sites, and a different characters, a distance matrix requires O(N^2) space and O(N^2 L) time, but FastTree requires just O( NLa + N sqrt(N) ) memory and O( N sqrt(N) log(N) L a ) time. To estimate the tree's reliability, FastTree uses local bootstrapping, which gives another 100-fold speedup over a distance matrix. For example, FastTree computed a tree and support values for 158,022 distinct 16S ribosomal RNAs in 17 hours and 2.4 gigabytes of memory. Just computing pairwise Jukes-Cantor distances and storing them, without inferring a tree or bootstrapping, would require 17 hours and 50 gigabytes of memory. In simulations, FastTree was slightly more accurate than neighbor joining, BIONJ, or FastME; on genuine alignments, FastTree's topologies had higher likelihoods. FastTree is available at http://microbesonline.org/fasttree.
2,436 citations
TL;DR: In this paper, a review of more than 300 publications on membrane bioreactor fouling is presented, and the authors propose updated definitions of key parameters such as critical and sustainable flux, along with standard methods to determine and measure the different fractions of the biomass.
2,113 citations
TL;DR: A consistent and descriptive nomenclature is suggested for reactors in which the anammox process is employed, and Reactors with a high specific surface area like the granular sludge reactor employed in Rotterdam provide the highest volumetric loading rates.
1,055 citations
07 Aug 2002
TL;DR: An overview of the present status of electric and hybrid vehicles worldwide and their state of the art, with emphasis on the engineering philosophy and key technologies is provided.
Abstract: In a world where environment protection and energy conservation are growing concerns, the development of electric vehicles (EV) and hybrid electric vehicles (HEV) has taken on an accelerated pace. The dream of having commercially viable EVs and HEVs is becoming a reality. EVs and HEVs are gradually available in the market. This paper will provide an overview of the present status of electric and hybrid vehicles worldwide and their state of the art, with emphasis on the engineering philosophy and key technologies. The importance of the integration of technologies of automobile, electric motor drive, electronics, energy storage, and controls and also the importance of the integration of society strength from government, industry, research institutions, electric power utilities, and transportation authorities are addressed. The challenge of EV commercialization is discussed.
1,046 citations
TL;DR: The major need for research in the future will be the combination of physico-chemical/biological treatment of saline industrial effluents, with regard to the global treatment chain, in order to meet the regulations.
1,017 citations