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Distribution, characteristics and daily fluctuations of microplastics throughout wastewater treatment

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 1,   Pages 6-6 doi: 10.1007/s11783-021-1440-4

Abstract:

• MPs were analyzed throughout three WWTPs with mixed domestic–industrial influents.

Keywords： Microplastic     Wastewater treatment plant     Mixed domestic-industrial influent     Characteristic     Daily fluctuation    

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Power fluctuation and power loss of wind turbines due to wind shear and tower shadow

Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 3,   Pages 321-332 doi: 10.1007/s11465-017-0434-1

Abstract: This study investigates the effects of wind shear and tower shadow on power output in terms of power fluctuationPower fluctuation and power loss due to wind shear and tower shadow are analyzed by performing theoreticalResults indicate that power fluctuation is mainly caused by tower shadow, whereas power loss is primarily

Keywords： wind turbine     wind shear     tower shadow     power fluctuation     power loss    

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A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 89-97 doi: 10.1007/s11708-012-0176-z

Abstract: This paper discusses two problems in in-line particle sizing when using light fluctuation method.

Keywords： measurement     particle size distribution (PSD)     incident light intensity     particle concentration     light fluctuation    

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Evaluation of SWAT sub-daily runoff estimation at small agricultural watershed in Korea

Ganga Ram Maharjan, Youn Shik Park, Nam Won Kim, Dong Seok Shin, Jae Wan Choi, Geun Woo Hyun, Ji-Hong Jeon, Yong Sik Ok, Kyoung Jae Lim

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 109-119 doi: 10.1007/s11783-012-0418-7

Abstract: ha field-sized agricultural watershed in South Korea using Soil and Water Assessment Tool (SWAT) sub-dailyThe SWAT model with sub-daily configuration predicted flow from the watershed within the range of acceptableThe SWAT sub-daily simulations were carried out for a total of 18 rainfall events, 9 each for calibrationWhereas and values for simulation results using daily rainfall data were 0.79 and -0.01, respectivelyThe SWAT sub-daily sensitivity analysis was performed with the consideration of hydraulic parameter and

Keywords： Soil and Water Assessment Tool (SWAT)     sub-daily simulation     runoff     rainfall    

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Application of Value Engineering in Daily Chemical Industry

Chen Zhixiang,Zhang guoxing

Strategic Study of CAE 2005, Volume 7, Issue 6,   Pages 84-87

Abstract: This paper introduces the experience in application of value engineering in a daily chemical enlerprise

Keywords： daily chemical industry     product development     value engineering    

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Critical flow-storm approach to total maximum daily load (TMDL) development: an analytical conceptual

Zhang Harry, Yu Shaw

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 267-273 doi: 10.1007/s11783-008-0058-0

Abstract: One of the key challenges in the total maximum daily load (TMDL) development process is how to define

Keywords： representative hydrologic     occurrence     simulation approach     scarcity     alternative    

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Analysis of the Quality of Daily DEM Generation with Geosynchronous InSAR Article

Zefa Yang, Qingjun Zhang, Xiaoli Ding, Wu Chen

Engineering 2020, Volume 6, Issue 8,   Pages 913-918 doi: 10.1016/j.eng.2020.07.003

Abstract: ., on a daily basis) for a very large area (e.g., continental scale or greater).geostationary earth orbits, allowing them to observe the same ground area with a very short revisit time (dailyThis offers great potential for the daily DEM generation that is desirable yet thus far impossible withIn this work, we systematically analyze the quality of daily GEOSAR DEM.The results indicate that the accuracy of a daily GEOSAR DEM is generally much lower than what can be

Keywords： Daily digital elevation model     Interferometric synthetic aperture radar     Geosynchronous synthetic aperture    

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Anti-erosion elastic coating design based on synchronous fluctuation principle

Guo Yuanjun,Xiao Hualin,Xu Daqing,Li Wenbin

Strategic Study of CAE 2008, Volume 10, Issue 9,   Pages 60-63

Abstract: The condition of realized synchronous fluctuation of elastic coating channel border with the perturbation

Keywords： erosion     boundary layer     elastic channel border     elastic coating     synchronous fluctuation    

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Study of the Optimal Scheme for the Daily Operation of Northeastern Oil Pipeline Network Based on the

Cui Hui,Wu Changchun,Wu Jianglin,Sun Qingfeng

Strategic Study of CAE 2004, Volume 6, Issue 8,   Pages 69-73

Abstract: As for its operational actuality on the basis of the peak - valley price, the optimization of the dailyvalley price is used to increase the oil throughput rate in the valley period, and accordingly the dailyof this method, the analysis is carried out for Tieling-Qinhuangdao hot oil pipeline under different dailySome fundamental rules for the optimization of the daily operation scheme based on the peak-valley price

Keywords： northeastern oil pipeline network     peak-valley price     daily operation     optimization    

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Optimal portfolio design of energy storage devices with financial and physical right market

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 95-104 doi: 10.1007/s11708-021-0788-2

Abstract: of energy storage and avoid the imbalance of power supply and consumption and the risk of node price fluctuation

Keywords： portfolio     node price fluctuation     transmission right     energy storage right     risk aversion    

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Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 8, doi: 10.1007/s11783-023-1699-8

Abstract:

● High amounts of microplastics are released to receiving media from WWTPs.

Keywords： Microplastics     Wastewater treatment plant     Removal efficiency     Daily discharge    

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The Global Positioning System (GPS): Creating Satellite Beacons in Space, Engineers Transformed Daily

Peter Weiss

Engineering 2021, Volume 7, Issue 3,   Pages 290-303 doi: 10.1016/j.eng.2021.02.001

Keywords： EngineeringAchievements    

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Numerical simulation and analysis of periodically oscillating pressure characteristics of inviscid flow in a rolling pipe

Yan GU, Yonglin JU

Frontiers in Energy 2012, Volume 6, Issue 1,   Pages 21-28 doi: 10.1007/s11708-012-0173-2

Abstract: It is found that the pressure fluctuation of the inviscid flow remains almost constant at different flowThe amplitude of the pressure fluctuation increases with the increasing of the excitated amplitude, andIt is also found that the period of the pressure fluctuation varies with the excitated frequency.

Keywords： pressure fluctuation     rolling     floating production storage and offloading unit for liquefied natural gas    

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A novel high-temperature and high-pressure hydraulic pump based on mononeuron control

Linhui ZHAO, Xin FANG

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 219-223 doi: 10.1007/s11465-009-0024-y

Abstract: Based on structures and characteristics of traditional hydraulic pumps, this paper proposes a novel high-temperature and high-pressure hydraulic pump (HHHP) that can work under 150°C and 28 MPa to overcome problems of traditional high-temperature plunger pumps. The HHHP is designed with the structure of mechanical division and double cylinder parallel. The control signals of two cylinders are two separate triangle waveforms with 90° phase difference. Because the output waveforms of two cylinders have the same characteristics as the control signals, the HHHP can obtain a stable output after two separate waveforms are superposed. A mononeuron self-adaptive PID control algorithm is also improved by modifying parameters and . Two improved controllers are used to control the two cylinders, respectively, making two displacements of plungers match each other. Therefore, reduced fluctuations and stable pressure output is obtained. Besides simulation, tests on the built prototype test system are carried out to verify the performance of HHHP. Results show that the improved control approach can limit fluctuations to a lower level and the HHHP system attains good outputs under different signal periods and different pressures.

Keywords： mononeuron PID control     hydraulic pump     pressure fluctuation    

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Removal of pharmaceutical and personal care products by sequential ultraviolet and ozonation process in a full-scale wastewater treatment plant

Qian SUI, Jun HUANG, Shuguang LU, Shubo DENG, Bin WANG, Wentao ZHAO, Zhaofu QIU, Gang YU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 62-68 doi: 10.1007/s11783-013-0518-z

Abstract: Noticeable fluctuation in the removal efficiencies of the same PPCPs was observed in different sampling

Keywords： PPCPs     advanced treatment     ozone     fluctuation     removal contribution    

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Title Author Date Type Operation

Distribution, characteristics and daily fluctuations of microplastics throughout wastewater treatment

Journal Article

Power fluctuation and power loss of wind turbines due to wind shear and tower shadow

Binrong WEN, Sha WEI, Kexiang WEI, Wenxian YANG, Zhike PENG, Fulei CHU

Journal Article

A novel light fluctuation spectrum method for in-line particle sizing

Shouxuan QIN, Xiaoshu CAI, Li MA

Journal Article

Evaluation of SWAT sub-daily runoff estimation at small agricultural watershed in Korea

Ganga Ram Maharjan, Youn Shik Park, Nam Won Kim, Dong Seok Shin, Jae Wan Choi, Geun Woo Hyun, Ji-Hong Jeon, Yong Sik Ok, Kyoung Jae Lim

Journal Article

Application of Value Engineering in Daily Chemical Industry

Chen Zhixiang,Zhang guoxing

Journal Article

Critical flow-storm approach to total maximum daily load (TMDL) development: an analytical conceptual

Zhang Harry, Yu Shaw

Journal Article

Analysis of the Quality of Daily DEM Generation with Geosynchronous InSAR

Zefa Yang, Qingjun Zhang, Xiaoli Ding, Wu Chen

Journal Article

Anti-erosion elastic coating design based on synchronous fluctuation principle

Guo Yuanjun,Xiao Hualin,Xu Daqing,Li Wenbin

Journal Article

Study of the Optimal Scheme for the Daily Operation of Northeastern Oil Pipeline Network Based on the

Cui Hui,Wu Changchun,Wu Jianglin,Sun Qingfeng

Journal Article

Optimal portfolio design of energy storage devices with financial and physical right market

Journal Article

Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey

Journal Article

The Global Positioning System (GPS): Creating Satellite Beacons in Space, Engineers Transformed Daily

Peter Weiss

Journal Article

Numerical simulation and analysis of periodically oscillating pressure characteristics of inviscid flow in a rolling pipe

Yan GU, Yonglin JU

Journal Article

A novel high-temperature and high-pressure hydraulic pump based on mononeuron control

Linhui ZHAO, Xin FANG

Journal Article

Removal of pharmaceutical and personal care products by sequential ultraviolet and ozonation process in a full-scale wastewater treatment plant

Qian SUI, Jun HUANG, Shuguang LU, Shubo DENG, Bin WANG, Wentao ZHAO, Zhaofu QIU, Gang YU

Journal Article