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Modeling analysis on solar steam generator employed in multi-effect distillation (MED) system

Zhaorui ZHAO, Bao YANG, Ziwen XING

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 193-203 doi: 10.1007/s11708-019-0608-0

Abstract: Specifically, the effects of operating parameters, such as the motive steam temperature, seawater flowproduced have been investigated in the MED desalination system combined with the bilayer wood solar steamIt is found that, under a given operating condition, there exists an optimum steam generation temperatureThis parametric simulation study will help the design of efficient bilayer wood solar steam generator

Keywords： solar energy     steam generating     multi-effect desalination    

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New Perspectives of Seismic Safety Evaluation in Urban Planning：The Discovery of “Macroseism Generating

Li Ping,Yang Mei´e,Zhao Dongzhi

Strategic Study of CAE 2007, Volume 9, Issue 7,   Pages 1-6

Abstract: active faults in a time scale as long as tens or hundreds of years, so we call them the macroseism generatingThe macroseism generating fault is not merely a line but has a certain width from several meters to tensThe discovery of macroseism generating fault enables us to deal with the three factors, i.e. the timequot; in urban planning, correction and amendment are necessary as for whether or not the macroseism generating

Keywords： urban planning     active fault     macroseism generating fault     seismic amplifying effect of macroseism generating    

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Antioxidative potential of metformin: Possible protective mechanism against generating OH radicals

Huibin Guo, Ning Wang, Xiang Li

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1313-2

Abstract: Abstract • Metformin consumes O2−• and OH• induced by PM are proposed. • OH• dominated the oxidation of metformin compared with O2−• • Metformin can prevent the harm of ROS induced by PM to human health. • Antioxidative potential of metformin was first proposed to provide measures. Exposure to particulate matter (PM) can lead to the excessive accumulation of reactive oxygen species (ROS), which causes oxidative stress and endangers human health. In this study, the effects of metformin on PM-induced radicals were investigated, and the antioxidation reaction mechanism of metformin was analyzed by the density functional theory (DFT) method. The corresponding results revealed that the consumption rate of dithiothreitol (DTT) increased as the metformin concentration (0–40 mmol/L) increased under exposure to PM active components. Moreover, the OH radical content decreased as the metformin concentration increased. This result may be related to the consumption of PM-induced OH radicals by metformin, which promotes the DTT consumption rate. Additionally, because the initiation reaction has a high barrier, the oxidation reaction rate between metformin and •O2− is not very fast, although various catalysts may be present in the human environment. Importantly, we found that the barrier of metformin induced by OH radicals is only 9.6 kcal/mol while the barrier of metformin induced by oxygen is 57.9 kcal/mol, which shows that the rate of the •OH-initiated oxidative reaction of metformin is much faster and that this reaction path occurs more easily. By sample analysis, the mean OH radical generation was 55 nmol/min/g (ranging from 5 to 105 nmol/min/g) on haze days and 30 nmol/min/g (ranging from 10 to 50 nmol/min/g) on non-haze days. Moreover, OH radical generation was higher on haze days than on neighboring non-haze days. Taken together, all data suggest that metformin could consume the PM-induced radicals, such as OH radicals and •O2−, thereby providing health protection.

Keywords： Antioxidative potential     Metformin     Mechanism     OH radical     Health protection.    

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A novel method for generating distillation configurations

Hongzhe Hou, Yiqing Luo

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 834-846 doi: 10.1007/s11705-019-1855-7

Abstract: An improved matrix method for generating distillation configurations with ( −1) and less than ( −1) columns

Keywords： non-sharp separation     multicomponent distillation     distillation configurations    

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Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 415-426 doi: 10.1007/s11705-018-1725-8

Abstract: Catalytic steam gasification of fine coal char particles was carried out using a self-made laboratory

Keywords： coal char     catalytic steam gasification     pressure     kinetics     diffusion    

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High-efficiency inspecting method for mobile robots based on task planning for heat transfer tubes in a steam

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0741-z

Abstract: Many heat transfer tubes are distributed on the tube plates of a steam generator that requires periodic

Keywords： steam generator transfer tubes     mobile robot     dexterous structure     task planning     efficient inspection    

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Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 321-335 doi: 10.1007/s11708-021-0741-4

Abstract: In place of the traditional single heat source (extraction steam), the extraction steam from the turbine

Keywords： biomass-fired cogeneration     district heat production system     absorption heat pump     extraction steam    

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A steam dried municipal solid waste gasification and melting process

Gang XIAO, Baosheng JIN, Mingjiang NI, Kefa CEN, Yong CHI, Zhongxin TAN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 193-204 doi: 10.1007/s11783-010-0268-0

Abstract: Considering high-moisture municipal solid waste (MSW) of China, a steam dried MSW gasification and meltingMoisture percentage was reduced from 50% to 20% roughly when MSW was dried by slightly superheated steamboiler heat efficiency of an industrial MSW incineration plant reaches 86.97% when MSW is dried by steam

Keywords： municipal solid waste (MSW)     steam drying     gasification and melting    

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Impacts of solar multiple on the performance of direct steam generation solar power tower plant with

Yan LUO, Xiaoze DU, Lijun YANG, Chao XU, Muhammad AMJAD

Frontiers in Energy 2017, Volume 11, Issue 4,   Pages 461-471 doi: 10.1007/s11708-017-0503-5

Abstract: and thermal storage capacity are two key design parameters for revealing the performance of direct steam

Keywords： direct steam generation     solar power tower     solar multiple     thermal energy storage capacity     levelized cost    

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Thermal cracking of waste printed wiring boards for mechanical recycling by using residual steam preprocessing

Yao CHEN, Jinhui LI, Huabo DUAN, Zhishi WANG

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 167-174 doi: 10.1007/s11783-011-0308-4

Abstract: A thermal-crack method using residual steam as the heating medium has been developed to pre-treat wasteThe results showed that thermal cracking with steam at the temperature of 500 K can effectively attenuate

Keywords： waste printed wiring board (PWB)     residue steam     thermal-crack     mechanical properties    

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Combination of steam-enhanced extraction and electrical resistance heating for efficient remediation

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 11, doi: 10.1007/s11783-022-1582-z

Abstract:

● Coupling merits of SEE and ERH were explored by a laboratory-scale device.

Keywords： Steam-enhanced extraction     Electrical resistance heating     Dense nonaqueous phase liquid     Soil remediation    

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Numerical simulation of a new hollow stationary dehumidity blade in last stage of steam turbine

Youmin HOU, Danmei XIE, Wangfan LI, Xinggang YU, Yang SHI, Hanshi QIN

Frontiers in Energy 2011, Volume 5, Issue 3,   Pages 288-296 doi: 10.1007/s11708-011-0160-z

Abstract: As a result of adopting saturation steam and long blade, problems of water erosion of last stage bladefor steam turbine become more prominent.the nonequilibrium condensing wet steam two phase flow and the dehumidity method.A wet steam model with user defined function based on FLUENT software was investigated to simulate thesteam condensing flow in the cascades.

Keywords： steam turbine     hollow stationary blade     dehumidity     numerical simulation    

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Thermodynamic analysis of steam reforming of glycerol for hydrogen production at atmospheric pressure

Ammaru Ismaila, Xueli Chen, Xin Gao, Xiaolei Fan

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 1,   Pages 60-71 doi: 10.1007/s11705-020-1975-0

Abstract: Thermodynamic chemical equilibrium analysis of steam reforming of glycerol (SRG) for selective hydrogenunder the conditions at atmospheric pressure, 600€K–1100€K and 1.013 × 10 –1.013 × 10 Pa with the steam-to-glycerolinert gas), the CH production is minimised, and carbon formation was thermodynamically unfavoured at steam

Keywords： steam reforming of glycerol     H2     N2     carbon deposition     thermodynamic analysis     Gibbs    

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A brief review of genome editing technology for generating animal models

Haoyi WANG, Sen WU, Mario R. CAPECCHI, Rudolf JAENISCH

Frontiers of Agricultural Science and Engineering 2020, Volume 7, Issue 2,   Pages 123-128 doi: 10.15302/J-FASE-2019309

Abstract: technologies has given researchers unprecedented power to alter DNA sequences at chosen genomic loci, thereby generating

Keywords： animal model     CRISPR     genome editing     TALEN     ZFN    

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1000 MW ultra-supercritical turbine steam parameter optimization

FENG Weizhong

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 187-193 doi: 10.1007/s11708-008-0030-5

Abstract: The 2 × 1000 MW ultra-supercritical steam turbine of Shanghai Waigaoqiao Phase III project, which usesThrough optimization, the steam pressure is regarded as the criterion between constant pressure and slidingtemperature and by setting the individual Boiler Feedwater Turbine condenser to reduce the exhaust steam
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Title Author Date Type Operation

Modeling analysis on solar steam generator employed in multi-effect distillation (MED) system

Zhaorui ZHAO, Bao YANG, Ziwen XING

Journal Article

New Perspectives of Seismic Safety Evaluation in Urban Planning：The Discovery of “Macroseism Generating

Li Ping,Yang Mei´e,Zhao Dongzhi

Journal Article

Antioxidative potential of metformin: Possible protective mechanism against generating OH radicals

Huibin Guo, Ning Wang, Xiang Li

Journal Article

A novel method for generating distillation configurations

Hongzhe Hou, Yiqing Luo

Journal Article

Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Journal Article

High-efficiency inspecting method for mobile robots based on task planning for heat transfer tubes in a steam

Journal Article

Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam

Journal Article

A steam dried municipal solid waste gasification and melting process

Gang XIAO, Baosheng JIN, Mingjiang NI, Kefa CEN, Yong CHI, Zhongxin TAN

Journal Article

Impacts of solar multiple on the performance of direct steam generation solar power tower plant with

Yan LUO, Xiaoze DU, Lijun YANG, Chao XU, Muhammad AMJAD

Journal Article

Thermal cracking of waste printed wiring boards for mechanical recycling by using residual steam preprocessing

Yao CHEN, Jinhui LI, Huabo DUAN, Zhishi WANG

Journal Article

Combination of steam-enhanced extraction and electrical resistance heating for efficient remediation

Journal Article

Numerical simulation of a new hollow stationary dehumidity blade in last stage of steam turbine

Youmin HOU, Danmei XIE, Wangfan LI, Xinggang YU, Yang SHI, Hanshi QIN

Journal Article

Thermodynamic analysis of steam reforming of glycerol for hydrogen production at atmospheric pressure

Ammaru Ismaila, Xueli Chen, Xin Gao, Xiaolei Fan

Journal Article

A brief review of genome editing technology for generating animal models

Haoyi WANG, Sen WU, Mario R. CAPECCHI, Rudolf JAENISCH

Journal Article

1000 MW ultra-supercritical turbine steam parameter optimization

FENG Weizhong

Journal Article