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n-heptane 4

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Metabolic flux analysis on arachidonic acid fermentation

JIN Mingjie, HUANG He, ZHANG Kun, YAN Jie, GAO Zhen

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 421-426 doi: 10.1007/s11705-007-0077-6

Abstract: flux distributions were estimated in different fermentation phases with different concentrations of N-sourceand stationary phase, carbon fluxes to AA were 3.28%, 8.80% and 6.97%, respectively, with sufficient N-source19.21% and 39.29%, respectively, by regulating the shifts of carbon fluxes via fermentation with limited N-sourceThese results suggest a way to improve AA fermentation, that is, fermentation with limited N-source brothand adding low concentration N-source during the stationary phase.

Keywords： AA     different fermentation     concentration N-source     exponential     metabolic    

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δN-stable isotope analysis of NH: An overview on analytical measurements, source sampling and its source

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1414-6

Abstract: Challenges in sampling of NH3 sources for d15N

Keywords： Aerosol ammonium     Atmospheric gaseous ammonia     Isotope fingerprinting     Isotope-based source apportionment    

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Impacts of n-alkane concentration on soil bacterial community structure and alkane monooxygenase genes

Yueqiao Liu, Aizhong Ding, Yujiao Sun, Xuefeng Xia, Dayi Zhang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1064-5

Abstract:

Soil microbial community is not significantly shaped by alkane concentrations

Alkane concentrations alter dominant alkane degraders in soils

Different alkanes are preferentially degraded at different contamination level

Different types of alkane monooxygenase genes responsible for alkane degradation

Keywords： Petroleum hydrocarbon contaminated site     n-alkane contamination level     n-alkane biodegradation     Soil bacterial    

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Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Yufen REN, Zhiwei XU, Xinyu ZHANG, Xiaoke WANG, Xiaomin SUN, D. J. BALLANTINE, Shengzhong WANG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 106-116 doi: 10.1007/s11783-012-0474-z

Abstract: nitrogen concentrations, combined with the ratio distribution, showed that domestic sewage was the major source

Keywords： nitrogen concentration     spatial and seasonal variation     stable nitrogen isotope     urban ecosystem     source    

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Effects of nitrate concentration on biological hydrogen production by mixed cultures

Bo WANG, Wei WAN, Jianlong WANG,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 4,   Pages 380-386 doi: 10.1007/s11783-009-0142-0

Abstract: metabolites from mixed cultures were investigated by varying nitrate concentrations from 0 to 10g N/L, while they decreased with increasing nitrate concentrations from 0.1 to 10g N/L.glucose, and maximum average hydrogen production rate of 13.3mL/h were obtained at a nitrate concentrationof 0.1g N/L.A concise model was proposed to describe the effects of nitrate concentration on average hydrogen production

Keywords： nitrogen source     biohydrogen     fermentative hydrogen production     quantitative kinetic model    

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Synthesis and thermosensitive behavior of dextran graft copolymers containing poly (N-vinylcaprolactam

SHI Huangying, CHEN Wenjuan, ZHANG Liming

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 72-75 doi: 10.1007/s11705-007-0015-7

Abstract: New graft copolymers were synthesized by grafting N-vinylcaprolactam onto dextran.temperature (LCST) of the graft copolymer in aqueous solution was dependent on its grafting extent and concentrationto increase with the increase of the grafting extent and decrease with the increase of the copolymer concentration

Keywords： transmittance     copolymer concentration     LCST     temperature     elemental    

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Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1354-1371 doi: 10.1007/s11705-022-2286-4

Abstract: Here, we provide an overview of the recent developments of localized high-concentration electrolytesFirstly, the solvation structures and physicochemical properties of localized high-concentration electrolytesThen, the developments of localized high-concentration electrolytes to suppress the formation of dendriticLastly, the remaining challenges and further possible research directions for localized high-concentration

Keywords： high-concentration electrolyte     localized high-concentration electrolyte     lithium metal battery     solid    

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PM concentration declining saves health expenditure in China

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1690-4

Abstract:

● Monthly hospitalization expenses are sensitive to increases in PM2.5 exposure.

Keywords： Air pollution     Health expenditure     PM2.5 concentration     Economic impact     Heterogeneous effect    

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Development of source profiles and their application in source apportionment of PM

Ningning Zhang, Mazhan Zhuang, Jie Tian, Pengshan Tian, Jieru Zhang, Qiyuan Wang, Yaqing Zhou, Rujin Huang, Chongshu Zhu, Xuemin Zhang, Junji Cao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0879-1

Abstract: Local source profiles of major PM sources were developed.Source apportionment was conducted using CMB model.burning, fugitive dust, and sea salt for the source apportionment studies.The highest value of PM mass concentration and species related to human activities (SO , NO , Pb, Niand the source profiles.

Keywords： PM2.5     Source profile     Source apportionment     CMB     Xiamen    

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Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 595-608 doi: 10.1007/s11709-021-0720-1

Abstract: effective notch stress approach for evaluating the fatigue strength of rib–deck welds requires notch stress concentrationTo improve the efficiency of the approach, the notch stress concentration factors for three typical fatigue-crackingto investigate the effects of multiple geometric parameters of a rib–deck weld on the notch stress concentrationregression analysis was performed to obtain the optimal regression functions for predicting the notch stress concentrationThe notch stress concentration factors estimated from the developed formulas show agree well with the

Keywords： notch stress concentration factor     rib–deck weld     parametric analysis     regression analysis     parametric    

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The source and transport of bioaerosols in the air: A review

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1336-8

Abstract:

• Emission of microbe from local environments is a main source of bioaerosols

Keywords： Bioaerosols     Diffusion     Source identification     Biogeography    

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Fault tolerant control strategy for modular PWM current source inverter

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 228-238 doi: 10.1007/s11708-022-0852-6

Abstract: control method for an input-series output-parallel modular grid-tied pulse-width modulation (PWM) current source

Keywords： current source converter (CSC)     fault-tolerant control     space vector modulation     active damping     resonance    

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Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1065-1071 doi: 10.1007/s11705-019-1909-x

Abstract: In order to investigate the effect of the electrolyte concentration on the properties of MAO coatings

Keywords： aluminum alloy     micro-arc oxidation     coating     electrolyte concentration     tribological performance    

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Diagnostic evaluation of plasma aldosterone concentration to plasma renin activity ratio in primary aldosteronism

ZHANG Huilan, WANG Daowen

Frontiers of Medicine 2008, Volume 2, Issue 1,   Pages 11-14 doi: 10.1007/s11684-008-0003-4

Abstract: Using the plasma aldosterone concentration to plasma renin activity ratio (PAC/PRA ratio) as the screeningThe plasma aldosterone concentration (PAC) and plasma renin activity (PRA) levels were measured by radioimmunoassay
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Effect of different carbon sources on performance of an A

Dongliang Du, Chuanyi Zhang, Kuixia Zhao, Guangrong Sun, Siqi Zou, Limei Yuan, Shilong He

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 2, doi: 10.1007/s11783-017-0981-z

Abstract: carbon sources on purification performance and change of microbial community structure in a novel A N-MBRacetate, propionate or acetate and propionate mixed (1:1) as carbon sources, the effluent COD, NH -N,However, taken glucose as carbon source, the TP concentration of effluent reached 2.6 mg·L .efficiency phosphorus uptake of phosphorus accumulating organisms in the system with acetate as carbon source

Keywords： Denitrifying phosphorus removal     Alternate anaerobic/anoxic-aerobic MBR (A2N-MBR)     Carbon source    

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Title Author Date Type Operation

Metabolic flux analysis on arachidonic acid fermentation

JIN Mingjie, HUANG He, ZHANG Kun, YAN Jie, GAO Zhen

Journal Article

δN-stable isotope analysis of NH: An overview on analytical measurements, source sampling and its source

Journal Article

Impacts of n-alkane concentration on soil bacterial community structure and alkane monooxygenase genes

Yueqiao Liu, Aizhong Ding, Yujiao Sun, Xuefeng Xia, Dayi Zhang

Journal Article

Nitrogen pollution and source identification of urban ecosystem surface water in Beijing

Yufen REN, Zhiwei XU, Xinyu ZHANG, Xiaoke WANG, Xiaomin SUN, D. J. BALLANTINE, Shengzhong WANG

Journal Article

Effects of nitrate concentration on biological hydrogen production by mixed cultures

Bo WANG, Wei WAN, Jianlong WANG,

Journal Article

Synthesis and thermosensitive behavior of dextran graft copolymers containing poly (N-vinylcaprolactam

SHI Huangying, CHEN Wenjuan, ZHANG Liming

Journal Article

Localized high-concentration electrolytes for lithium metal batteries: progress and prospect

Journal Article

PM concentration declining saves health expenditure in China

Journal Article

Development of source profiles and their application in source apportionment of PM

Ningning Zhang, Mazhan Zhuang, Jie Tian, Pengshan Tian, Jieru Zhang, Qiyuan Wang, Yaqing Zhou, Rujin Huang, Chongshu Zhu, Xuemin Zhang, Junji Cao

Journal Article

Parametric equations for notch stress concentration factors of rib–deck welds under bending loading

Journal Article

The source and transport of bioaerosols in the air: A review

Journal Article

Fault tolerant control strategy for modular PWM current source inverter

Journal Article

Effect of electrolyte concentration on the tribological performance of MAO coatings on aluminum alloys

Chao Wang, Jun Chen, Jihua He, Jing Jiang, Qinyong Zhang

Journal Article

Diagnostic evaluation of plasma aldosterone concentration to plasma renin activity ratio in primary aldosteronism

ZHANG Huilan, WANG Daowen

Journal Article

Effect of different carbon sources on performance of an A

Dongliang Du, Chuanyi Zhang, Kuixia Zhao, Guangrong Sun, Siqi Zou, Limei Yuan, Shilong He

Journal Article