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Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1564-1

Abstract:

● A new model for bloom control in open land scape water was constructed.

Keywords： Reclaimed water landscape     Algal bloom     Nitrogen and phosphorus     Hydraulic retention time     Threshold    

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Effects of hydraulic retention time on nitrification activities and population dynamics of a conventional

Hongyan LI, Yu ZHANG, Min YANG, Yoichi KAMAGATA

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 43-48 doi: 10.1007/s11783-012-0397-8

Abstract: The effects of hydraulic retention time (HRT) on the nitrification activities and population dynamics

Keywords： ammonia-oxidizing bacteria     hydraulic retention time     nitrification activity     nitrite-oxidizing bacteria    

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Sustaining health workforce recruitment and retention in township hospitals: a survey on 110 directors

Jingmin Zheng,Jie Li,Xingxing Jiang,Bin Zhang

Frontiers of Medicine 2015, Volume 9, Issue 2,   Pages 239-250 doi: 10.1007/s11684-015-0392-0

Abstract: influencing rural working are increasing; however, studies on factors affecting the recruitment and retentionpen-and-paper survey was conducted to ask the directors to identify the factors influencing the attraction and retentionother studies, this framing of both non-financial and financial elements affected the attraction and retention

Keywords： recruitment     retention     health workers     township hospitals     rural regions    

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EFFECT OF EXOGENOUS ADDITIVES ON HEAVY METAL PASSIVATION AND NITROGEN RETENTION IN PIG MANURE COMPOSTING

Frontiers of Agricultural Science and Engineering doi: 10.15302/J-FASE-2023487

Abstract:

● Research on heavy metal passivation and nitrogen emissions is necessary for the pig industry.

Keywords： additives     composting     heavy metals passivation     nitrogen retention     pig manure    

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Bio-based Waterborne Poly(Vanillin-Butyl Acrylate)/MXene Coatings for Leather with Desired Warmth Retention

Jianzhong Ma,Li Ma,Lei Zhang,Wenbo Zhang,Qianqian Fan,Buxing Han,

Engineering doi: 10.1016/j.eng.2023.06.005

Abstract: preparation of novel, green, and waterborne bio-based nanocomposite coatings for leather, with desired warmth retention

Keywords： MXene nanosheets     Vanillin     Styrene substitute     Leather coating     Photothermal conversion     Warmth retention    

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Influence of hydraulic retention time on behavior of antibiotics and antibiotic resistance genes in aerobic

Jie Liao, Chaoxiang Liu, Lin Liu, Jie Li, Hongyong Fan, Jiaqi Ye, Zhichao Zeng

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 3, doi: 10.1007/s11783-019-1115-6

Abstract:

Longer HRT can enhance degradation rate of sulfamethoxazole in granular reactor.

Longer HRT can reduce accumulated concentrations of TCs and QNs in sludge.

Longer HRT may have increased relative abundances of ARGs in aerobic granules.

Keywords： Aerobic granules     Swine wastewater     Tetracyclines     Fluoroquinolones     Sulfonamides    

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Effects of hydraulic retention time on net present value and performance in a membrane bioreactor treating

Dawei Yu, Jianxing Wang, Libin Zheng, Qianwen Sui, Hui Zhong, Meixue Cheng, Yuansong Wei

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1280-7

Abstract: sensitivity analysis was performed for an industrial membrane bioreactor to quantify the effects of hydraulic retentionDifferent hydraulic retention times (72–24 h) were subjected to a flat-sheet membrane bioreactor updatedThe decreased hydraulic retention time from 72 to 36 h reduced the NPV by 38.2%, where capital expenditure

Keywords： Antibiotic production wastewater     Net present value     Membrane bioreactor     Hydraulic retention time     Pollutant    

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Cotransfecting norepinephrine transporter and vesicular monoamine transporter 2 genes for increased retention

Yanlin Zhao,Xiao Zhong,Xiaohong Ou,Huawei Cai,Xiaoai Wu,Rui Huang

Frontiers of Medicine 2017, Volume 11, Issue 1,   Pages 120-128 doi: 10.1007/s11684-017-0501-3

Abstract: However, the use of 131I-MIBG is limited by its short retention time in target cells.To prolong the retention of 131I-MIBG in target cells, we infected hepatocarcinoma (HepG2revealed that NET-VMAT2-coexpressing tumors had longer 131I-MIBG retentionnbsp;NET and VMAT2resulted in increased 131I-MIBG uptake and retention

Keywords： norepinephrine transporter     vesicular monoamine transporter 2     -MIBG     gene therapy     lentivirus vector    

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Effect of biochar amendment on soil’s retention capacity for estrogenic hormones from poultry manure

Sukhjot MANN, Zhiming QI, Shiv O. PRASHER, Lanhai LI, Dongwei GUI, Qianjing JIANG

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 208-219 doi: 10.15302/J-FASE-2017138

Abstract: However, in the following year (current study), there was no significant retention of hormones in the

Keywords： adsorption     degradation     dissolved organic carbon     17β-estradiol (E2)     estrone (E1)    

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Nitrogen-retaining property of compost in an aerobic thermophilic composting reactor for the sanitary disposal of human feces

Fan BAI, Xiaochang WANG,

Frontiers of Environmental Science & Engineering 2010, Volume 4, Issue 2,   Pages 228-234 doi: 10.1007/s11783-010-0022-7

Abstract: fertilizer, it would be beneficial if the composting conditions could be more precisely controlled for the retention

Keywords： nitrogen retention     composting reactor     human feces     aerobic     thermophilic     fertilizer    

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The application of polycarboxylates water-reducing admixture to passenger dedicated line engineering

Huang Zhijiu

Strategic Study of CAE 2009, Volume 11, Issue 1,   Pages 75-80

Abstract: key for polycarboxylates application is to settle the compatibility with cement andkeep the quality retention

Keywords： polycarboxylate water-reducing admixtures     compatibility of cement     quality retention     high performance    

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Effects of operating conditions on membrane charge property and nanofiltration

Li XU, Li-Shun DU, Jing HE

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 4,   Pages 492-499 doi: 10.1007/s11705-011-1143-7

Abstract: The permeate flux and the retention rate under different nanofiltration operating conditions were alsoThe higher the pressure and the cross flow velocity, the higher the retention rate.The lower feed concentration and higher temperature leads to lower retention rate.The effects of the operating conditions on the permeate flux and the retention rate were explained by

Keywords： nanofiltration membrane     streaming potential     Zeta potential     permeate flux     retention rate    

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In-Vessel Melt Retention of Pressurized Water Reactors: Historical Review and Future Research Needs Review

Weimin Ma, Yidan Yuan, Bal Raj Sehgal

Engineering 2016, Volume 2, Issue 1,   Pages 103-111 doi: 10.1016/J.ENG.2016.01.019

Abstract:

A historical review of in-vessel melt retention (IVR) is given, which is a severe accident mitigation

Keywords： Pressurized water reactor     Severe accident     In-vessel melt retention     Debris formation     Debris remelting    

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Seasonal variations in leaf capturing of particulate matter, surface wettability and micromorphology in urban tree species

Huixia WANG, Hui SHI, Yangyang LI, Ya YU, Jun ZHANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 4,   Pages 579-588 doi: 10.1007/s11783-013-0524-1

Abstract: During the study, the leaf PM retention amount of , a species with ridged leaf surfaces, was significantlyA significant and negative relationship existed between leaf PM retention amounts and contact angles

Keywords： contact angle     particulate matter     retention amount    

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Stormwater treatment: examples of computational fluid dynamics modeling

Gaoxiang YING, John SANSALONE, Srikanth PATHAPATI, Giuseppina GAROFALO, Marco MAGLIONICO, Andrea BOLOGNESI, Alessandro ARTINA

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 5,   Pages 638-648 doi: 10.1007/s11783-012-0442-7

Abstract: Control of rainfall-runoff particulate matter (PM) and PM-bound chemical loads is challenging; in part due to the wide gradation of PM complex geometries of many unit operations and variable flow rates. Such challenges and the expense associated with resolving such challenges have led to the relatively common examination of a spectrum of unit operations and processes. This study applies the principles of computational fluid dynamics (CFD) to predict the particle and pollutant clarification behavior of these systems subject to dilute multiphase flows, typical of rainfall-runoff, within computationally reasonable limits, to a scientifically acceptable degree of accuracy. The Navier-Stokes (NS) system of nonlinear partial differential equations for multi-phase hydrodynamics and separation of entrained particles are solved numerically over the unit operation control volume with the boundary and initial conditions defined and then solved numerically until the desired convergence criteria are met. Flow rates examined are scaled based on sizing of common unit operations such as hydrodynamic separators (HS), wet basins, or filters, and are examined from 1 to 100 percent of the system maximum hydraulic operating flow rate. A standard turbulence model is used to resolve flow, and a discrete phase model (DPM) is utilized to examine the particle clarification response. CFD results closely follow physical model results across the entire range of flow rates. Post-processing the CFD predictions provides an in-depth insight into the mechanistic behavior of unit operations by means of three dimensional (3-D) hydraulic profiles and particle trajectories. Results demonstrate the role of scour in the rapid degradation of unit operations that are not maintained. Comparisons are provided between measured and CFD modeled results and a mass balance error is identified. CFD is arguably the most powerful tool available for our profession since continuous simulation modeling.

Keywords： computational fluid dynamics (CFD)     turbulence modeling     discrete phase model     particle separation     detention/retention    

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Title Author Date Type Operation

Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom

Journal Article

Effects of hydraulic retention time on nitrification activities and population dynamics of a conventional

Hongyan LI, Yu ZHANG, Min YANG, Yoichi KAMAGATA

Journal Article

Sustaining health workforce recruitment and retention in township hospitals: a survey on 110 directors

Jingmin Zheng,Jie Li,Xingxing Jiang,Bin Zhang

Journal Article

EFFECT OF EXOGENOUS ADDITIVES ON HEAVY METAL PASSIVATION AND NITROGEN RETENTION IN PIG MANURE COMPOSTING

Journal Article

Bio-based Waterborne Poly(Vanillin-Butyl Acrylate)/MXene Coatings for Leather with Desired Warmth Retention

Jianzhong Ma,Li Ma,Lei Zhang,Wenbo Zhang,Qianqian Fan,Buxing Han,

Journal Article

Influence of hydraulic retention time on behavior of antibiotics and antibiotic resistance genes in aerobic

Jie Liao, Chaoxiang Liu, Lin Liu, Jie Li, Hongyong Fan, Jiaqi Ye, Zhichao Zeng

Journal Article

Effects of hydraulic retention time on net present value and performance in a membrane bioreactor treating

Dawei Yu, Jianxing Wang, Libin Zheng, Qianwen Sui, Hui Zhong, Meixue Cheng, Yuansong Wei

Journal Article

Cotransfecting norepinephrine transporter and vesicular monoamine transporter 2 genes for increased retention

Yanlin Zhao,Xiao Zhong,Xiaohong Ou,Huawei Cai,Xiaoai Wu,Rui Huang

Journal Article

Effect of biochar amendment on soil’s retention capacity for estrogenic hormones from poultry manure

Sukhjot MANN, Zhiming QI, Shiv O. PRASHER, Lanhai LI, Dongwei GUI, Qianjing JIANG

Journal Article

Nitrogen-retaining property of compost in an aerobic thermophilic composting reactor for the sanitary disposal of human feces

Fan BAI, Xiaochang WANG,

Journal Article

The application of polycarboxylates water-reducing admixture to passenger dedicated line engineering

Huang Zhijiu

Journal Article

Effects of operating conditions on membrane charge property and nanofiltration

Li XU, Li-Shun DU, Jing HE

Journal Article

In-Vessel Melt Retention of Pressurized Water Reactors: Historical Review and Future Research Needs

Weimin Ma, Yidan Yuan, Bal Raj Sehgal

Journal Article

Seasonal variations in leaf capturing of particulate matter, surface wettability and micromorphology in urban tree species

Huixia WANG, Hui SHI, Yangyang LI, Ya YU, Jun ZHANG

Journal Article

Stormwater treatment: examples of computational fluid dynamics modeling

Gaoxiang YING, John SANSALONE, Srikanth PATHAPATI, Giuseppina GAROFALO, Marco MAGLIONICO, Andrea BOLOGNESI, Alessandro ARTINA

Journal Article