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Comprehensive strengthening mechanism of steel based on nano scale cementite precipitates

Fu Jie,Li Guangqiang,Yu Yueguang,Mao Xinping,Fang Keming

Strategic Study of CAE 2011, Volume 13, Issue 1,   Pages 31-42

Abstract:

This paper summarized the status of comprehensive strengthening mechanismCementite with high volume fraction has stronger precipitation strengthening effect than that of nano-scaleTiC, which can not be ignored.The precipitation strengthening contributions of nano-scale precipitatesproposed, and the calculated yield strength considering the precipitation strengthening contributionsThe reason for grain refinement strengthening can not directly plus dislocation strengthening and the

Keywords: yield strength     nano-scale cementite     nano-scale titanium carbide     precipitation strengthening     comprehensivestrengthening of steel    

Modeling radiative effects of haze on summer-time convective precipitation over North China: a case study

Xuying WANG, Bin ZHANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 4, doi: 10.1007/s11783-016-0840-3

Abstract: We modeled the impact of haze radiative effects on precipitation in North China.Convection was the key factor that whether precipitation was enhanced or suppressed.Precipitation was often suppressed where CAPE, RH and updraft velocities were high.The convection was stronger over places with precipitation enhancement over 30 mm.water vapor to rise to a higher level and thus further suppressed precipitation.

Keywords: Haze     Aerosol radiative effects     Convective precipitation    

Changes in hourly precipitation may explain the sharp reduction of discharge in the middle reach of the

Lin LUO, Zhongjing WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 5,   Pages 756-768 doi: 10.1007/s11783-013-0563-7

Abstract: High temporal resolution precipitation (timescales between 1 and 4 h) data from the June to Septemberand significance of monotonic trends, and to find the change points in the mean and variance of the precipitationResults show that although the total amount of precipitation has slightly increased, the average rainfallThe study indicates that changes in hourly precipitation may be responsible for the sharp reduction of

Keywords: precipitation intensity     Mann-Kendall rank statistic     spatial and temporal distribution     climatic change    

Strengthening of reinforced concrete beams using fiber-reinforced cementitious matrix systems fabricated

Frontiers of Structural and Civil Engineering   Pages 1100-1116 doi: 10.1007/s11709-023-0967-9

Abstract: The behavior of this system is evaluated in terms of both the flexural and shear strengthening of reinforcedEight beams are designed to assess the effectiveness of the FRCM system in terms of flexural strengtheningThe parameters investigated for flexural strengthening are the number of layers, span/depth ratio, andthe strengthening method.In the shear-strengthened specimens, the effects of the span/depth ratio and strengthening system type

Keywords: fiber-reinforced cementitious matrix     flexural strengthening     shear strengthening     carbon fiber-reinforced    

Study on a kind of new strengthening buffer operators and numerical simulations

Cui Jie,Dang Yaoguo,Liu Sifeng,Xie Naiming

Strategic Study of CAE 2010, Volume 12, Issue 2,   Pages 108-112

Abstract: >According to the theory of prior using of new information,based on the research of already existed strengtheningbuffer operators, some new strengthening buffer operators are established.The flaw that the existing strengthening buffer operators can,t fully use new information of the dataAn example simulation shows, compared with the existing strengthening buffer operators, the kind of newstrengthening buffer operators increases the forecast precision of GM(1,1) remarkably.

Keywords: operator     strengthening buffer operator     geometry average strengthening operator     GM(1     1)    

Development status of hot rolled dual-phase steel and development of high strength hot rolled dual-phase steel

Yuan Guo,Li Chengning,Sun Dandan,Kang Jian and Wang Guodong

Strategic Study of CAE 2014, Volume 16, Issue 2,   Pages 39-45

Abstract: Strengthening mechanism and process control principle of hot rolled dual-phase steel strengthened byislands and ferrite matrix distributing a large number of supersaturated precipitates and interphase precipitation

Keywords: hot rolled dual- phase steel     low- cost     F- B dual- phase steel     precipitation strengthening     TiC     high strength    

Shear strength model of the reinforced concrete beams with embedded through-section strengthening bars

Linh Van Hong BUI; Phuoc Trong NGUYEN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7,   Pages 843-857 doi: 10.1007/s11709-022-0834-0

Abstract: compressive strength of concrete, stiffness ratio between ETS bars and steel stirrups, and use of ETS strengtheningA promising method based on the bond mechanism between ETS strengthening and concrete is then proposed

Keywords: embedded through-section     strengthening     fiber-reinforced polymer     finite element     shear strength model    

STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 503-509 doi: 10.15302/J-FASE-2023528

Abstract:

STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Keywords: GREEN     AGRICULTURAL     PROMOTE     POLLUTION     SOURCE     DEVELOPMENT     POINT     STRENGTHENING     CONTROL    

Evaluation of precipitation behavior of zirconium molybdate hydrate

Liang ZHANG, Masayuki TAKEUCHI, Tsutomu KOIZUMI, Izumi HIRASAWA

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 65-71 doi: 10.1007/s11705-013-1314-9

Abstract: In the dissolution step of spent nuclear fuel, there is a world-concern problem that zirconium molybdate hydrate precipitates as a byproduct, and accumulates in some reprocessing equipments. In order to prevent this accumulation, we have developed a new method based on the controlled reaction crystallization of zirconium molybdate hydrate (ZMH) in the reprocessing solution, followed by solid liquid separation. In order to measure the particle size of ZMH, batch crystallization experiments were conducted by varying nitric acid concentration and operating temperature. In result, almost all particle sizes scatter around 1 μm on average, despite the higher concentration of nitric aid and operating temperature, and then small particles grow up as an aggregate sticking to the crystallizer. Moreover, polymorph and color changing were observed by varying the concentration of nitric acid and reaction time. These results suggest that crystal color and adhesiveness are closely related to the particle size of ZMH. And the control of nitric acid concentration and small particle growth would be the useful technique to prevent the ZMH sticking.

Keywords: spent nuclear fuel     zirconium molybdate hydrate     cleaning method     accumulation    

of vanadium and manganese from high-manganese containing vanadium wastewater by a solvent extraction-precipitation

Zishuai Liu, Yimin Zhang, Zilin Dai, Jing Huang, Cong Liu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 5,   Pages 902-912 doi: 10.1007/s11705-019-1887-z

Abstract: environmentally friendly method was developed to recover valuable metals by using a solvent extraction-precipitationFor the precipitation process, 91.05% of manganese was recovered as MnCO which meets the III grade standard

Keywords: high-manganese containing vanadium wastewater     solvent extraction     carbonate precipitation     vanadium titano-magnetite    

LiFePO/C cathode materials synthesized by co-precipitation and microwave heating

XU Yunlong, TAO Lili, MA Hongyan, HUANG Huaqing

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 4,   Pages 422-427 doi: 10.1007/s11705-008-0082-4

Abstract: LiFePO/C cathode materials were synthesized by a combination of co-precipitation and microwave heating

Keywords: polyethylene     electrochemical performance     combination     co-precipitation     diffraction    

CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 3,   Pages 457-464 doi: 10.15302/J-FASE-2022452

Abstract: ListItem>

● A simple model was used to evaluate how increasing temporal variability in precipitation

Keywords: crop yield     fertilizer timing     nitrogen loss     precipitation variability     toy model    

TRMM satellite onboard instruments and the application on precipitation analysis of their measurements

Fu Yunfei,Liu Qi,Wang Yu,Sun Liang,Li Rui,Ma Ming,Liu Guosheng

Strategic Study of CAE 2012, Volume 14, Issue 10,   Pages 43-50

Abstract: style="text-align: justify;">The method of satellite infrared and passive microwave remote sensing for precipitationAs for example, precipitation structure, relationship among altitude of cloud top and rain top with surfacerain rate for a summer hot convective precipitation system were brought forth together with analyzingof long time dataset of the TRMM precipitation radar on precipitation climatology in Asia.At last, theprospect of the satellite active and passive remote sensing of precipitation in the near future were

Keywords: TRMM     precipitation radar     microwave imager     spectrum     precipitation    

EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATION

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 479-491 doi: 10.15302/J-FASE-2023480

Abstract:

● LFD was treated by fly ash-based chemical precipitation and CO

Keywords: anaerobic digestion     chemical oxygen demand     fly ash     ion removal     total phosphate    

Separation of 1,3-propanediol from glycerol-based fermentations of Klebsiella pneumoniae by alcohol precipitation

GAO Sujun, SUN Yaqin, XIU Zhilong

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 202-207 doi: 10.1007/s11705-007-0037-1

Abstract: The influences of pH and water content in condensed broth on alcohol precipitation and dilution crystallizationThe experimen tal results indicated that alcohol precipitation and dilution crystallization was feasible

Title Author Date Type Operation

Comprehensive strengthening mechanism of steel based on nano scale cementite precipitates

Fu Jie,Li Guangqiang,Yu Yueguang,Mao Xinping,Fang Keming

Journal Article

Modeling radiative effects of haze on summer-time convective precipitation over North China: a case study

Xuying WANG, Bin ZHANG

Journal Article

Changes in hourly precipitation may explain the sharp reduction of discharge in the middle reach of the

Lin LUO, Zhongjing WANG

Journal Article

Strengthening of reinforced concrete beams using fiber-reinforced cementitious matrix systems fabricated

Journal Article

Study on a kind of new strengthening buffer operators and numerical simulations

Cui Jie,Dang Yaoguo,Liu Sifeng,Xie Naiming

Journal Article

Development status of hot rolled dual-phase steel and development of high strength hot rolled dual-phase steel

Yuan Guo,Li Chengning,Sun Dandan,Kang Jian and Wang Guodong

Journal Article

Shear strength model of the reinforced concrete beams with embedded through-section strengthening bars

Linh Van Hong BUI; Phuoc Trong NGUYEN

Journal Article

STRENGTHENING NON-POINT SOURCE POLLUTION CONTROL TO PROMOTE AGRICULTURAL GREEN DEVELOPMENT

Journal Article

Evaluation of precipitation behavior of zirconium molybdate hydrate

Liang ZHANG, Masayuki TAKEUCHI, Tsutomu KOIZUMI, Izumi HIRASAWA

Journal Article

of vanadium and manganese from high-manganese containing vanadium wastewater by a solvent extraction-precipitation

Zishuai Liu, Yimin Zhang, Zilin Dai, Jing Huang, Cong Liu

Journal Article

LiFePO/C cathode materials synthesized by co-precipitation and microwave heating

XU Yunlong, TAO Lili, MA Hongyan, HUANG Huaqing

Journal Article

CLIMATE-CHANGE-INDUCED TEMPORAL VARIATION IN PRECIPITATION INCREASES NITROGEN LOSSES FROM INTENSIVE CROPPING

Journal Article

TRMM satellite onboard instruments and the application on precipitation analysis of their measurements

Fu Yunfei,Liu Qi,Wang Yu,Sun Liang,Li Rui,Ma Ming,Liu Guosheng

Journal Article

EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATION

Journal Article

Separation of 1,3-propanediol from glycerol-based fermentations of Klebsiella pneumoniae by alcohol precipitation

GAO Sujun, SUN Yaqin, XIU Zhilong

Journal Article