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Source apportionment of PM

Wei WEN,Shuiyuan CHENG,Lei LIU,Gang WANG,Xiaoqi WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0839-9

Abstract: The hybrid approach can be used for source apportionment of secondary species.objective of this paper is to propose a hybrid approach for the source apportionment of primary and secondaryspecies of PM in the city of Tangshan.species.The other-source category plays a crucial role for PM , particularly for the formation of secondary species

Keywords： Secondary species     Emission inventory     PM2.5     Source apportionment    

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THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 387-399 doi: 10.15302/J-FASE-2021414

Abstract: Species mixtures are complex and the 4C approach is both a pedagogical and scientific way to representCooperation, and Compensation as processes or effects occurring simultaneously and dynamically between speciesrequirements for abiotic resources in space and time, the result of all processes that occur when one speciesCooperation is when the modification of the environment by one species is beneficial to the other(s).Compensation is when the failure of one species is compensated by the other(s) because they differ in

Keywords： complementarity     cooperation     interspecific interactions     land equivalent ratio     light     nutrients     species    

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COMPARING PERFORMANCE OF CROP SPECIES MIXTURES AND PURE STANDS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 481-489 doi: 10.15302/J-FASE-2021413

Abstract:

Intercropping is the planned cultivation of species mixtures on agricultural land.Information is needed which species combinations perform best under different circumstances and which

Keywords： intercropping     species mixtures     meta-analysis     metrics     indicators    

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Tracking in urban wastewater treatment plants in a cold region: Occurrence, species and infectivity

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 9, doi: 10.1007/s11783-022-1533-8

Abstract:

• Cryptosporidium in WWTPs in a cold region was investigated in different seasons.

Keywords： WWTPs     Cryptosporidium     Occurrence     Species     Infectivity     Low temperature    

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Mechanisms for simultaneous ozonation of sulfamethoxazole and natural organic matters in secondary effluent

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1368-0

Abstract:

• SMX was mainly degraded by hydrolysis, isoxazole oxidation and double-bond addition.

Keywords： Sulfamethoxazole     Ozonation     Natural organic matters     Secondary effluent     Degradation mechanism    

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IN VITRO ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 4,   Pages 635-644 doi: 10.15302/J-FASE -2020343

Abstract:

The antifungal effectiveness of extracts of five medicinal plant species was determined.Different extracts from the same plant species gave different degrees of inhibition.

Keywords： Botrytis cinerea / food preservation / plant diseases / plant pathogenic fungi / Tupistra chinensis    

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Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 348-361 doi: 10.1007/s11783-011-0343-1

Abstract: include a process analysis (PA) scheme for gas and particulate matter (PM) to study the formation of secondarySecondary nitrate is formed in the urban areas from near the ground to a few hundred meters above theThe secondary nitrate formation rate in rural areas is lower due to lower NO .reactions with water vapor and the N O heterogeneous reactions with particle-bound water are important for secondaryreactions are most import near the surface to a few hundred meters above surface with a maximum modeled net secondary

Keywords： secondary nitrate aerosol     N2O5 heterogeneous reaction     process analysis    

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Two-echelon Emergency Response Problem and Simulation Considering Secondary Disasters

Han-peng Zhang,Yi Liao,Hui-xia Luo

Frontiers of Engineering Management 2014, Volume 1, Issue 3,   Pages 318-321 doi: 10.15302/J-FEM-2014042

Abstract: is necessary for subsequent resource distribution planning that get expected relief time considering secondarythis research is to develop a two-echelon emergency resource distribution model under condition of secondary

Keywords： simulation     secondary disasters     two-echelon vehicle routing model    

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Formation of secondary inorganic aerosol in a frigid urban atmosphere

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1452-0

Abstract:

•Harbin showed relatively high threshold RH (80%) for apparent increase of SOR.

Keywords： Haze     Sulfate     Nitrate     Heterogeneous chemistry     Biomass burning     Northeast China    

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Roles of various Ni species on TiO

Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN

Frontiers in Energy 2019, Volume 13, Issue 4,   Pages 684-690 doi: 10.1007/s11708-018-0585-8

Abstract: In this study, different nickel species Ni, Ni(OH) , NiO, NiO , and NiS are used to modified titaniumThe results indicate that all the nickel species can improve the photocatalytic hydrogen production activityhas more superior photocatalytic hydrogen evolution activities than those modified with other nickel species

Keywords： nickel species     TiO2     photocatalytic hydrogen evolution    

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PCDD/Fs emission, risk characterization, and reduction in China’s secondary copper production industry

Haiqian LI, Yonglong LU, Li LI

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 589-597 doi: 10.1007/s11783-013-0495-2

Abstract: Secondary copper production is one of the key polychlorinated dibenzo- -dioxins and dibenzofurans (PCDDIn 2004, when the Stockholm Convention entered into force in China, PCDD/Fs emissions from secondaryIn this paper, PCDD/Fs emission dynamics from secondary copper industry were discussed and cumulativeRiver Delta, Pearl River Delta and central regions were among the top three of dioxin emissions from secondaryFrom 2009 to 2015, the PCDD/Fs emission dynamics in the secondary copper industry were presented through

Keywords： polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs)     secondary copper production    

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Effects of different doses of cadmium on secondary metabolites and gene expression in Artemisia annua

Liangyun Zhou,Guang Yang,Haifeng Sun,Jinfu Tang,Jian Yang,Yizhan Wang,Thomas Avery Garran,Lanping Guo

Frontiers of Medicine 2017, Volume 11, Issue 1,   Pages 137-146 doi: 10.1007/s11684-016-0486-3

Abstract:

This study aims to elucidate the underlying molecular mechanisms of artemisinin accumulation induced by cadmium (Cd). The effects of different Cd concentrations (0, 20, 60, and 120 μmol/L) on the biosynthesis of Artemisia annua L. were examined. Intermediate and end products were quantified by HPLC-ESI-MS/MS analysis. The expression of key biosynthesis enzymes was also determined by qRT-PCR. The results showed that the application of treatment with 60 and 120 μmol/L Cd for 3 days significantly improved the biosynthesis of artemisinic acid, arteannuin B, and artemisinin. The concentrations of artemisinic acid, arteannuin B, and artemisinin in the 120 μmol/L Cd-treated group were 2.26, 102.08, and 33.63 times higher than those in the control group, respectively. The concentrations of arteannuin B and artemisinin in 60 μmol/L Cd-treated leaves were 61.10 and 26.40 times higher than those in the control group, respectively. The relative expression levels of HMGR, FPS, ADS, CYP71AV1, DBR2, ALDH1, and DXR were up-regulated in the 120 μmol/L Cd-treated group because of increased contents of artemisinic metabolites after 3 days of treatment. Hence, appropriate doses of Cd can increase the concentrations of artemisinic metabolites at a certain time point by up-regulating the relative expression levels of key enzyme genes involved in artemisinin biosynthesis.

Keywords： Cd     secondary metabolites     gene expressions     Artemisia annua L.    

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Cooperative effect between copper species and oxygen vacancy in CeZrCuO catalysts for carbon monoxide

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1524-1536 doi: 10.1007/s11705-021-2106-2

Abstract: ., Cu2+–□–Ce4+; □: oxygen vacancy), and the amount of reducible copper speciesCatalytic CO oxidation tests indicated that the oxygen vacancy and the reducible copper species wereThus, the samples x = 0.1 and 0.3, which possessed the most oxygen vacancy or reducible copper species

Keywords： Ce–Zr–Cu–O     CO oxidation     reducible copper species     oxygen vacancy     cooperative effect    

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Simple model of sludge thickening process in secondary settlers

Yuankai ZHANG,Hongchen WANG,Lu QI,Guohua LIU,Zhijiang HE,Songzhu JIANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 319-326 doi: 10.1007/s11783-014-0758-6

Abstract: In wastewater treatment plants (WWTPs), a secondary settler acts as a clarifier, sludge thickener, andSludge thickening occurs in the lower portions of secondary clarifiers during their operation.

Keywords： wastewater treatment plants     secondary settler     sludge thickening     sludge settling     hindered zone    

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On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Frontiers of Mechanical Engineering 2014, Volume 9, Issue 1,   Pages 34-40 doi: 10.1007/s11465-014-0290-1

Abstract: This paper presents a theorem showing analytically that the locus of an unknown secondary instant pole

Keywords： spherical mechanisms     instantaneous poles     great circle     angular velocity    

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Title Author Date Type Operation

Source apportionment of PM

Wei WEN,Shuiyuan CHENG,Lei LIU,Gang WANG,Xiaoqi WANG

Journal Article

THE 4C APPROACH AS A WAY TO UNDERSTAND SPECIES INTERACTIONS DETERMINING INTERCROPPING PRODUCTIVITY

Journal Article

COMPARING PERFORMANCE OF CROP SPECIES MIXTURES AND PURE STANDS

Journal Article

Tracking in urban wastewater treatment plants in a cold region: Occurrence, species and infectivity

Journal Article

Mechanisms for simultaneous ozonation of sulfamethoxazole and natural organic matters in secondary effluent

Journal Article

IN VITRO ACTIVITY OF EXTRACTS OF FIVE MEDICINAL PLANT SPECIES ON PLANT PATHOGENIC FUNGI

Journal Article

Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Journal Article

Two-echelon Emergency Response Problem and Simulation Considering Secondary Disasters

Han-peng Zhang,Yi Liao,Hui-xia Luo

Journal Article

Formation of secondary inorganic aerosol in a frigid urban atmosphere

Journal Article

Roles of various Ni species on TiO

Xiaoping CHEN, Jihai XIONG, Jinming SHI, Song XIA, Shuanglin GUI, Wenfeng SHANGGUAN

Journal Article

PCDD/Fs emission, risk characterization, and reduction in China’s secondary copper production industry

Haiqian LI, Yonglong LU, Li LI

Journal Article

Effects of different doses of cadmium on secondary metabolites and gene expression in Artemisia annua

Liangyun Zhou,Guang Yang,Haifeng Sun,Jinfu Tang,Jian Yang,Yizhan Wang,Thomas Avery Garran,Lanping Guo

Journal Article

Cooperative effect between copper species and oxygen vacancy in CeZrCuO catalysts for carbon monoxide

Journal Article

Simple model of sludge thickening process in secondary settlers

Yuankai ZHANG,Hongchen WANG,Lu QI,Guohua LIU,Zhijiang HE,Songzhu JIANG

Journal Article

On the location of the secondary instantaneous poles in two-degree-of-freedom spherical mechanisms

Soheil ZARKANDI

Journal Article