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Measurement of activity coefficients at infinite dilution for hydrocarbons in imidazolium-based ionic

ZHU Jiqin, YU Yanmei, CHEN Jian, FEI Weiyang

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 190-194 doi: 10.1007/s11705-007-0035-3

Abstract: Activity coefficients γ at infinite dilution of a solute in ionic liquid are generally used in the selectionActivity coefficients at infinite dilution of hydrocarbon solutes, such as alkanes, hexenes, alkylbenzenesThe quantitative relations among the computed structure parameters and activity coefficients at infiniteThe experimental activity coefficient data are consistent with the correlated and predicted results using

Keywords： cost-saving     consistent     coefficient     measurement     separating    

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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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Modeling of specific structure crystallization coupling with dissolution

Yuanhui JI, Hongliang QIAN, Chang LIU, Xiaohua LU, Xin FENG, Xiaoyan JI,

Frontiers of Chemical Science and Engineering 2010, Volume 4, Issue 1,   Pages 52-56 doi: 10.1007/s11705-009-0301-7

Abstract: The first is the activity coefficient model of the solution, the second is Solid-Liquid equilibrium,

Keywords： structure crystallization     activity coefficient     reference     KCl     dissolution    

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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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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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IDEEA activity monitor: validity of activity recognition for lying, reclining, sitting and standing

Yuyu Jiang, Janet L. Larson

Frontiers of Medicine 2013, Volume 7, Issue 1,   Pages 126-131 doi: 10.1007/s11684-012-0236-0

Abstract: Most instruments measure physical activity and are not validated as measures of sedentary behavior.

Keywords： IDEEA     activity monitor     sedentary behavior    

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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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Production of pectic extracts from sugar beet pulp with antiproliferative activity on a breast cancer

Jacqueline CONCHA, Caroline WEINSTEIN, María Elvira Zú?IGA

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 482-489 doi: 10.1007/s11705-013-1342-5

Abstract: The pectic extract was examined for its antiproliferative activity on the MCF-7 breast cancer cell lineof 12.5–25 mg/mL the pectic extract killed 80.6% of the cells, exhibiting a higher antiproliferative activity

Keywords： pectic extracts     antiproliferative activity     breast cancer     enzymatic treatment    

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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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Dimensionality reduction and prediction of soil consolidation coefficient using random forest coupling

Hai-Bang LY; Huong-Lan Thi VU; Lanh Si HO; Binh Thai PHAM

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2,   Pages 224-238 doi: 10.1007/s11709-022-0812-6

Abstract: The consolidation coefficient of soil (Cv) is a crucial parameter used for the designThe performance of the proposed models was assessed via statistical indicators, namely Coefficient of

Keywords： soil consolidation coefficient     machine learning     random forest     Relief    

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Low intensity ultrasound stimulates biological activity of aerobic activated sludge

LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 1,   Pages 67-72 doi: 10.1007/s11783-007-0013-5

Abstract: Oxygen uptake rate (OUR) of the activated sludge (AS) was determined to indicate the changes of AS activityMore significantly, the AS activity stimulated by ultrasound could last 24 h after sonication, and theAS activity achieved its peak value within 8 h after sonication, or nearly 100% higher than the initial

Keywords： sonication     irradiation     kHz     treatment efficiency     AS activity    

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preparation of Ag@AgCl/Bio-veins composites and their photocatalytic activity and recyclability

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 906-917 doi: 10.1007/s11705-022-2273-9

Abstract: In this work, a facile strategy was proposed to enhance the photocatalytic activity and recovery performance

Keywords： Ag@AgCl     biological veins     photocatalytic activity     recyclability    

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Effect of 2-butenal manufacture wastewater to methanogenic activity and microbial community

Guangqing Song, Hongbo Xi, Xiumei Sun, Yudong Song, Yuexi Zhou

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1056-5

Abstract:

The inhibition ratio sharply increased with the increasing COD.

The absorbance of UV-vis at 420 nm showed a linear correlation with the SMA.

The molecular structure of EPS has changed when COD was 9585 mg/L.

Illumina Miseq sequencing was employed to reveal the microbial composition.

Keywords： 2-butenal manufacture wastewater     Methanogenic activity     Specific methanogenic activity (SMA)     Extracellular    

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Antithrombin deficiency and decreased protein C activity in a young man with venous thromboembolism:

Dong Wang, Min Tian, Guanglin Cui, Dao Wen Wang

Frontiers of Medicine 2018, Volume 12, Issue 3,   Pages 319-323 doi: 10.1007/s11684-017-0553-4

Abstract: revealed that the patient presented type I antithrombin deficiency combined with decreased protein C activityThis study demonstrates that the combination of antithrombin deficiency and decreased protein C activity

Keywords： antithrombin deficiency     protein C activity     mutation     variant     venous thromboembolism     anticoagulants    

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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 storage lipid/water distribution coefficient (log Klip/w) of organic chemicals, which quantitativelyQuantum 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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Title Author Date Type Operation

Measurement of activity coefficients at infinite dilution for hydrocarbons in imidazolium-based ionic

ZHU Jiqin, YU Yanmei, CHEN Jian, FEI Weiyang

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

Modeling of specific structure crystallization coupling with dissolution

Yuanhui JI, Hongliang QIAN, Chang LIU, Xiaohua LU, Xin FENG, Xiaoyan JI,

Journal Article

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

Journal Article

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

Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI

Journal Article

IDEEA activity monitor: validity of activity recognition for lying, reclining, sitting and standing

Yuyu Jiang, Janet L. Larson

Journal Article

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

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

Journal Article

Production of pectic extracts from sugar beet pulp with antiproliferative activity on a breast cancer

Jacqueline CONCHA, Caroline WEINSTEIN, María Elvira Zú?IGA

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

Dimensionality reduction and prediction of soil consolidation coefficient using random forest coupling

Hai-Bang LY; Huong-Lan Thi VU; Lanh Si HO; Binh Thai PHAM

Journal Article

Low intensity ultrasound stimulates biological activity of aerobic activated sludge

LIU Hong, YAN Yixin, WANG Wenyan, YU Yongyong

Journal Article

preparation of Ag@AgCl/Bio-veins composites and their photocatalytic activity and recyclability

Journal Article

Effect of 2-butenal manufacture wastewater to methanogenic activity and microbial community

Guangqing Song, Hongbo Xi, Xiumei Sun, Yudong Song, Yuexi Zhou

Journal Article

Antithrombin deficiency and decreased protein C activity in a young man with venous thromboembolism:

Dong Wang, Min Tian, Guanglin Cui, Dao Wen Wang

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