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Effects of different sediment fractions on sorption of galaxolide

Lixia JIN, Mengchang HE, Jinghuan ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 59-65 doi: 10.1007/s11783-010-0259-1

Abstract: isotherms of galaxolide (HHCB) of different fractions from two sediments with different mineral and organic carbonThe dissolved organic carbon (DOC) removed, NaOH extracted, and 375°C heating fractions showed more nonlinearCompared to the original sediments, the 375°C heating fractions had higher carbon-normalized distributioncoefficient ( ) values, indicating a higher sorption affinity for HHCB.

Keywords： galaxolide (HHCB)     sorption     organic carbon     sediment     carbon-normalized distribution coefficient (   

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Developing the QSPR model for predicting the storage lipid/water distribution coefficient of organic

Miao Li, Jian Li, Yuchen Lu, Cenyang Han, Xiaoxuan Wei, Guangcai Ma, Haiying Yu

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1316-z

Abstract: Abstract • A predictive model for storage lipid/water distribution coefficient was developed. • TheThe distribution of organic compounds in stored lipids affects their migration, transformation, bioaccumulationThe storage lipid/water distribution coefficient (log Klip/w) of organic chemicals, which quantitativelydetermines such distribution, has become a key parameter to assist their ecological security and healthQuantum chemical descriptors and n-octanol/water partitioning coefficient were employed to characterize

Keywords： Storage lipid/water distribution coefficient     log Klip/w     Organic compounds     QSPR     Quantum    

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Data-driven distribution network topology identification considering correlated generation power of distributed

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 121-129 doi: 10.1007/s11708-021-0780-x

Abstract: This paper proposes a data-driven topology identification method for distribution systems with distributedSecond, a maximal information coefficient-based maximum spanning tree algorithm is developed to obtainThe proposed method is tested on different distribution networks and the simulation results are compared

Keywords： power distribution network     data-driven     topology identification     distributed energy resource     maximalinformation coefficient    

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A model of

Jingyu WANG,Hongwei FANG,Guojian HE,Lei HUANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 845-853 doi: 10.1007/s11783-014-0708-3

Abstract: liquid interfaces and a surface micromorphology model of sediments, a theoretical expression of the distributioncoefficient is derived.This coefficient has significant effects on the distribution of radionuclide in seawater, suspended sediment

Keywords： distribution coefficient     Daya Bay     hydrodynamic     sediment transport     radionuclide transport    

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Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 3,   Pages 485-492 doi: 10.1007/s11705-019-1831-2

Abstract: chemical vapor deposition (CVD) technique was developed for improving the growth yield of single-walled carbonnanotubes (SWNTs) with a narrow chirality distribution.improved by repetitive short duration pulse plasma CVD, while maintaining the initial narrow chirality distributionThe growth of SWNTs with a narrow chirality distribution could be controlled by the difference in the

Keywords： single-walled carbon nanotubes     chirality-controlled synthesis     pulse plasma chemical vapor deposition    

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Impact of total organic carbon and chlorine to ammonia ratio on nitrification in a bench-scale drinkingwater distribution system

Yongji ZHANG, Lingling ZHOU, Guo ZENG, Huiping DENG, Guibai LI

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 4,   Pages 430-437 doi: 10.1007/s11783-010-0247-5

Abstract: The aim of this study was to investigate the impact of total organic carbon and chlorine to ammonia ratioon nitrification potential in a simulated drinking water distribution system as during chloraminationfour rotating annular bioreactors (RAB) with different chlorine to ammonia ratios and total organic carbon

Keywords： nitrification     drinking water     ammonia- oxidizing bacteria (AOB)     chloramines     organic carbon     heterotrophic    

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Distribution and temporal variability of the solar resource at a site in south-east Norway

Muyiwa S. ADARAMOLA

Frontiers in Energy 2016, Volume 10, Issue 4,   Pages 375-381 doi: 10.1007/s11708-016-0426-6

Abstract: This paper investigated the distribution and variability of solar radiation using the a 10-year (2006In addition, it is found that the inter-annual coefficient of variation of the global solar radiation

Keywords： coefficient of variation     global solar radiation     diffuse ratio     albedo     PV energy systems    

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Unnormalized and normalized forms of gefura measures in directed and undirected networks

Raf GUNS,Ronald ROUSSEAU

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 4,   Pages 311-320 doi: 10.1631/FITEE.1400425

Abstract: In some networks nodes belong to predefined groups (e.g., authors belong to institutions). Common network centrality measures do not take this structure into account. Gefura measures are designed as indicators of a node’s brokerage role between such groups. They are defined as variants of betweenness centrality and consider to what extent a node belongs to shortest paths between nodes from different groups. In this article we make the following new contributions to their study: (1) We systematically study unnormalized gefura measures and show that, next to the ‘structural’ normalization that has hitherto been applied, a ‘basic’ normalization procedure is possible. While the former normalizes at the level of groups, the latter normalizes at the level of nodes. (2) Treating undirected networks as equivalent to symmetric directed networks, we expand the definition of gefura measures to the directed case. (3) It is shown how Brandes’ algorithm for betweenness centrality can be adjusted to cover these cases.

Keywords： Networks subdivided in groups     Partitions     Gefura measures     Q-measures     Brokerage role     Directed and undirected networks     Brandes’     algorithm    

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Efficient CO

Yanxia Wang, Xiude Hu, Tuo Guo, Jian Hao, Chongdian Si, Qingjie Guo

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 3,   Pages 493-504 doi: 10.1007/s11705-020-1967-0

Abstract: selectivity of NAC-650-650 is 79.93, much higher than the value of 49.77 obtained for the nonnitrogen-doped carbon

Keywords： porous carbon     CO2 adsorption     nitrogen-doped     adsorption mechanism     kinetics    

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RETRACTED ARTICLE: Momentum exchange coefficient for two jet flows mixing in a tee junction

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2161-2161 doi: 10.1007/s11705-009-0143-3

Abstract: RETRACTED ARTICLE: Momentum exchange coefficient for two jet flows mixing in a tee junction

Keywords： tee junction     Momentum exchange coefficient     RETRACTED    

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Simulation on thermodynamic state of ammonia carbonation at low temperature and low pressure

Jingcai ZHAO, Xingfu SONG, Ze SUN, Jianguo YU

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 447-455 doi: 10.1007/s11705-013-1370-1

Abstract: This study on thermodynamic property of NH -CO -H O system provided the basic data for ammonia carbonation. Simulations on vapor-liquid equilibrium (VLE) of ammonia carbonation with different physical properties were discussed in NH -H O and NH -CO -H O systems, respectively. The results indicated that at low temperature (303.15 K–363.15 K) and pressure (0.1–0.4 MPa), the PR (Peng-Robinson) equation was suitable for the description of the thermodynamic state in NH -H O system. NRTL (Non-Random-Two-Liquid) series models were selected for NH -CO -H O mixed electrolyte solution system. VLE data regression results showed that NRTL series models were suitable for describing thermodynamic properties of NH -CO -H O system, because average relative error fitting with each model was about 1%. As an asymmetric electrolytes model in NRTL model, E–NRTLRK (Electrolyte NRTL Redlich Kwong) could most accurately fit VLE data of NH -CO -H O system, with fitting error less than 1%. In the extent temperature range of 273.15 K–363.15 K, the prediction of product component using E-NRTLRK model for ammonia carbonation agreed well with the data reported in literature.

Keywords： vapor-liquid equilibrium     activity coefficient     carbon dioxide     ammonia     NRTL    

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Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater

Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 160-172 doi: 10.1007/s11708-014-0321-y

Abstract: The heat transfer coefficient between the absorber plate and air can be considerably increased by using

Keywords： Nusselt number     flow rate     heat transfer     heat transfer coefficient     thermal efficiency     forced convection    

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A photolysis coefficient for characterizing the response of aqueous constituents to photolysis

David R. HOKANSON,Ke LI,R. Rhodes TRUSSELL

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 428-437 doi: 10.1007/s11783-015-0780-3

Abstract: Quantum yield ( ) and molar absorption coefficient ( ) are the two critical parameters measuring theIt was shown that this product, named the photolysis coefficient, , can be determined using standardThe development showed the photolysis coefficient to be equally useful for microbiological, inorganicValues of calculated by the authors based on quantum yield and molar absorption coefficient data from

Keywords： UV photolysis     disinfection     advanced oxidation     N-nitrosodimethylamine     quantum yield     absorption coefficient    

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Characterization of the dissolved organic matter in sewage effluent of sequence batch reactor: the impact of carbon

Jin GUO, Feng SHENG, Jianhua GUO, Xiong YANG, Mintao MA, Yongzhen PENG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 280-287 doi: 10.1007/s11783-011-0336-0

Abstract: Dissolved organic matter (DOM) transformation in sequence batch reactor (SBR) fed with carbon sourceswith sodium acetate or glucose, while the EPS from SBR fed with slowly biodegradable dissolved organic carbonOrganic carbon with MW>1 kDa as well as the hydrophobic fraction in DOM gradually increased with thecarbon sources changing from sodium acetate to glucose and starch.

Keywords： effluent organic matter (EfOM)     extracellular polymeric substance (EPS)     molecular weight distribution    

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Effect of heat transfer coefficient of steam turbine rotor on thermal stress field under off-design condition

Jie GUO,Danmei XIE,Hengliang ZHANG,Wei JIANG,Yan ZHOU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 57-64 doi: 10.1007/s11708-015-0385-3

Abstract: significance for safe and economic operation, in which an accurate calculation of heat transfer (HT) coefficientHT coefficient changes dramatically along with working conditions.The result shows that the accuracy of coefficient calculation when steam parameters are low has a greaterinfluence on that of rotor temperature and thermal stress, which means a precise empirical HT coefficientWhen steam parameters are high and HT coefficient is larger than 10 W/(m ·°C), there will be barely

Keywords： steam turbine     rotor     thermal stress     heat transfer coefficient     empirical formula    

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Title Author Date Type Operation

Effects of different sediment fractions on sorption of galaxolide

Lixia JIN, Mengchang HE, Jinghuan ZHANG

Journal Article

Developing the QSPR model for predicting the storage lipid/water distribution coefficient of organic

Miao Li, Jian Li, Yuchen Lu, Cenyang Han, Xiaoxuan Wei, Guangcai Ma, Haiying Yu

Journal Article

Data-driven distribution network topology identification considering correlated generation power of distributed

Journal Article

A model of

Jingyu WANG,Hongwei FANG,Guojian HE,Lei HUANG

Journal Article

Improvement in growth yield of single-walled carbon nanotubes with narrow chirality distribution by pulse

Bin Xu, Toshiro Kaneko, Toshiaki Kato

Journal Article

Impact of total organic carbon and chlorine to ammonia ratio on nitrification in a bench-scale drinkingwater distribution system

Yongji ZHANG, Lingling ZHOU, Guo ZENG, Huiping DENG, Guibai LI

Journal Article

Distribution and temporal variability of the solar resource at a site in south-east Norway

Muyiwa S. ADARAMOLA

Journal Article

Unnormalized and normalized forms of gefura measures in directed and undirected networks

Raf GUNS,Ronald ROUSSEAU

Journal Article

Efficient CO

Yanxia Wang, Xiude Hu, Tuo Guo, Jian Hao, Chongdian Si, Qingjie Guo

Journal Article

RETRACTED ARTICLE: Momentum exchange coefficient for two jet flows mixing in a tee junction

Journal Article

Simulation on thermodynamic state of ammonia carbonation at low temperature and low pressure

Jingcai ZHAO, Xingfu SONG, Ze SUN, Jianguo YU

Journal Article

Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater

Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI

Journal Article

A photolysis coefficient for characterizing the response of aqueous constituents to photolysis

David R. HOKANSON,Ke LI,R. Rhodes TRUSSELL

Journal Article

Characterization of the dissolved organic matter in sewage effluent of sequence batch reactor: the impact of carbon

Jin GUO, Feng SHENG, Jianhua GUO, Xiong YANG, Mintao MA, Yongzhen PENG

Journal Article

Effect of heat transfer coefficient of steam turbine rotor on thermal stress field under off-design condition

Jie GUO,Danmei XIE,Hengliang ZHANG,Wei JIANG,Yan ZHOU

Journal Article