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Resolution of the mechanism of steel output growth and study on the reasons of the excessive growth of steel output in China in 2000—2007

Lu Zhongwu,Yue Qiang

Strategic Study of CAE 2010, Volume 12, Issue 6,   Pages 4-11

Abstract: Steel output, steel products in use, GDP and their annual increasing rate were analyzed under standardBasic calculating formula for the annual increasing rate of steel output was obtained.Sixteen kinds of phenomena, which caused the annual increasing rate of steel output excessively exceeding

Keywords： teel output     steel products in use     GDP     annual increasing rate     mechanism     standard mode    

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Study on reformulation of fluid catalytic cracking gasoline and increasing production of light olefins

YAN Pingxiang, MENG Xianghai, GAO Jinsen, XU Chunming, SUI Zhiyu

Frontiers of Chemical Science and Engineering 2008, Volume 2, Issue 1,   Pages 74-79 doi: 10.1007/s11705-008-0016-1

Abstract: The effects of reaction temperature, mass ratio of catalyst to oil, space velocity, and mass ratio of water to oil on the product distribution, the yields of light olefins (light olefins including ethylene, propylene and butylene) and the composition of the fluid catalytic cracking (FCC) gasoline upgraded over the self-made catalyst GL in a confined fluidized bed reactor were investigated. The experimental results showed that FCC gasoline was obviously reformulated under appropriate reaction conditions. The olefins (olefins with C atom number above 4) content of FCC gasoline was markedly reduced, and the aromatics content and octane number were increased. The upgraded gasoline met the new standard of gasoline, and meanwhile, higher yields of light olefins were obtained. Furthermore, higher reaction temperature, higher mass ratio of catalyst to oil, higher mass ratio of water to oil, and lower space velocity were found to be beneficial to FCC gasoline reformulation and light olefins production.
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Influence of increasing numbers of RE-inverters on the power quality in the distribution grids: A PQ

Przemyslaw JANIK, Grzegorz KOSOBUDZKI, Harald SCHWARZ

Frontiers in Energy 2017, Volume 11, Issue 2,   Pages 155-167 doi: 10.1007/s11708-017-0469-3

Abstract: This paper presents the selected power quality (PQ) indicia of a wind generator and a photovoltaic installation considered to be the representative of medium voltage and low voltage distribution grids. The analysis of measured values suggests that the decrease in PQ is a case of specific combination of distributed generation, grid parameters and load behaviour. Modern generators have a limited impact on PQ. On the other hand, fluctuations in power generation are regarded as an emerging PQ indicator. The growing number of distributed renewable installations causes stochastic, variable, and hardly predictable power flows in the distribution grid. The nature of fluctuations in wind and solar generation is different. In both cases, new indexes for the quantification of fluctuations are needed and are yet not standardised. Proper assessment of these fluctuations enables definition of useful fluctuation limits and rules for optimal storage system integration.

Keywords： power quality     harmonics     sags     photovoltaic(PV) system     doubly feed induction generator (DFIG)     inverters    

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Breeding strategies for increasing yield potential in super hybrid rice

Shihua CHENG,Xiaodeng ZHAN,Liyong CAO

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 4,   Pages 277-282 doi: 10.15302/J-FASE-2015081

Abstract: Super hybrid rice breeding is a new breeding method combining semi-dwarf breeding and heterosis breeding using germplasm and gene-environment interactions. This paper reviews the breeding strategies of super hybrid rice breeding in China, focusing on the utilization of heterosis of indica and japonica subspecies, construction of ideal plant architecture and pyramiding of disease resistant genes in restorer lines. To develop super hybrid rice, considerable effort should be made to explore genes related with high yield, good quality, resistance to pests and diseases, tolerance to stresses. Molecular breeding methods in combination with crossing techniques should be adopted in super hybrid rice breeding.

Keywords： super hybrid rice     breeding strategies     yield potential    

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Corrigendum to “Multidecadal Trends in Large-Scale Annual Mean SATa Based on CMIP5 Historical Simulations Corrigendum

Nan Xing,Jianping Li,Lanning Wang

Engineering 2017, Volume 3, Issue 3,   Pages 428-428 doi: 10.1016/J.ENG.2017.03.015

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Study of mechanism of activating flux increasing weld penetration of AC A-TIG welding for aluminum alloy

HUANG Yong, FAN Ding, FAN Qinghua

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 442-447 doi: 10.1007/s11465-007-0076-9

Abstract: When multi-component flux AF305 is used as surface activating flux for an aluminum alloy, the weld pene tration of activating flux-tungsten inert-gas (A-TIG) welding is over two times more than that of conventional TIG welding. Using A-TIG welding with the modes of alternating current (AC), direct current electrode negative (DCEN) and direct current electrode positive (DCEP), respectively, the flux differently affects weld penetration when the polarity is different. After studied the effect of compelled arc con striction on weld penetration of AC welding, it is believed that the constriction of the whole arc root is not the main mechanism that flux AF305 dramatically improves weld penetration. The penetration has a relationship with the separate distribution of slag on the weld surface. Then, an observation of scanning electron microscopy (SEM) and an electronic data systems (EDS) analysis of slag were performed respectively. The separate distribution of slag on the weld pool during welding and the great constriction of arc spots were confirmed by TIG welding with helium shielding gas. The relationship between slag distribution and weld penetration was studied by adding aluminum powder into flux AF305 to change the distribution of slag. During welding, the separate distribution of slag on the weld pool results in the great constriction of arc spots, an increase in arc spot force, and an increase in Lorentz force within the arc and weld pool. Finally, the weld penetration is increased.

Keywords： A-TIG welding     surface     DCEN     electrode negative     increase    

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Increasing significance of advanced physical/chemical processes in the development and application of

RULKENS Wim

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 385-396 doi: 10.1007/s11783-008-0073-1

Abstract: Currently, there is an increasing need for the beneficial reuse of treated wastewater and to recover

Keywords： control     beneficial     valuable     scarcity     Development    

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The combined effects of biomass and temperature on maximum specific ammonia oxidation rate in domestic

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1411-9

Abstract:

• Actual SAORs was determined using MLVSS and temperature.

Keywords： Specific ammonia oxidation rate     Sequencing batch reactor     Biomass     Temperature coefficient     Model simulation    

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Use of float consumption rate in resource leveling of construction projects

Atilla DAMCI, Gul POLAT, Firat Dogu AKIN, Harun TURKOGLU

Frontiers of Engineering Management 2022, Volume 9, Issue 1,   Pages 135-147 doi: 10.1007/s42524-020-0118-0

Abstract: The float consumption rate is the percentage that is set to determine the maximum amount of float which

Keywords： resource management     resource leveling     float consumption rate     scheduling    

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Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1595-7

Abstract:

● Mechanical behavior of MBT waste affected by loading rate was investigated

Keywords： Mechanically and biologically treated waste     Landfill     Triaxial test     Loading rate     Axial strain     Shear    

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Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and gas explosion

Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 425-437 doi: 10.1007/s11709-017-0427-5

Abstract: Finally, the annual probability of structural collapse under simultaneous earthquake and blast loads

Keywords： gas blast     pushdown analysis     progressive collapse     annual probability of structural collapse     3D model of    

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Size-controllable synthesis of monodispersed nitrogen-doped carbon nanospheres from polydopamine for high-rate

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 11,   Pages 1788-1800 doi: 10.1007/s11705-023-2326-8

Abstract: exhibited a significant energy storage capability of 265 F·g–1 at 0.5 A·g–1 and high-rate

Keywords： carbon nanospheres     size-controlled     nitrogen-doped     high-rate     supercapacitors    

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Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough receiver

Honglun YANG, Qiliang WANG, Jingyu CAO, Gang PEI, Jing LI

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 867-881 doi: 10.1007/s11708-020-0707-y

Abstract: The annual electricity productions of power plants with novel receivers in Phoenix, Sevilla, and TuotuoheSolar absorption has a positive contribution to annual electricity productions, whereas heat loss and

Keywords： concentrated solar power     parabolic trough receiver     heat loss     solar energy     annual performance    

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Improved rate-based modeling of carbon dioxide absorption with aqueous monoethanolamine solution

Stefania MOIOLI, Laura A. PELLEGRINI, Simone GAMBA, Ben LI

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 123-131 doi: 10.1007/s11705-014-1415-0

Abstract: The aim is to obtain a reliable tool for process simulation: a customized rate-based model has been developed

Keywords： Absorption     carbon dioxide capture     rate-based model     monoethanolamine scrubbing    

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Economic Growth Model Based on Six Basic Factors of Production—Xu Growth Rate Equation

Shou-bo Xu,Zong-yuan Huang

Frontiers of Engineering Management 2014, Volume 1, Issue 2,   Pages 160-175 doi: 10.15302/J-FEM-2014024

Abstract: paper proposes an economic growth model based on the Six Basic Factors of Production and Xu Growth Raterelatively rocketing growth rate; in some years, the factors of production consumption rate was veryhigh, but the economy growth rate slowed down.The average contribution rate of technological advance peaks in the middle, while it drops down at twoNoticeably, since 2004, the technology contribution rate generally shows a downward trend, reasons of

Keywords： six basic factors of production     economic growth model     Xu Growth Rate Equation    

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Title Author Date Type Operation

Resolution of the mechanism of steel output growth and study on the reasons of the excessive growth of steel output in China in 2000—2007

Lu Zhongwu,Yue Qiang

Journal Article

Study on reformulation of fluid catalytic cracking gasoline and increasing production of light olefins

YAN Pingxiang, MENG Xianghai, GAO Jinsen, XU Chunming, SUI Zhiyu

Journal Article

Influence of increasing numbers of RE-inverters on the power quality in the distribution grids: A PQ

Przemyslaw JANIK, Grzegorz KOSOBUDZKI, Harald SCHWARZ

Journal Article

Breeding strategies for increasing yield potential in super hybrid rice

Shihua CHENG,Xiaodeng ZHAN,Liyong CAO

Journal Article

Corrigendum to “Multidecadal Trends in Large-Scale Annual Mean SATa Based on CMIP5 Historical Simulations

Nan Xing,Jianping Li,Lanning Wang

Journal Article

Study of mechanism of activating flux increasing weld penetration of AC A-TIG welding for aluminum alloy

HUANG Yong, FAN Ding, FAN Qinghua

Journal Article

Increasing significance of advanced physical/chemical processes in the development and application of

RULKENS Wim

Journal Article

The combined effects of biomass and temperature on maximum specific ammonia oxidation rate in domestic

Journal Article

Use of float consumption rate in resource leveling of construction projects

Atilla DAMCI, Gul POLAT, Firat Dogu AKIN, Harun TURKOGLU

Journal Article

Effect of loading rate on shear strength parameters of mechanically and biologically treated waste

Journal Article

Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and gas explosion

Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI

Journal Article

Size-controllable synthesis of monodispersed nitrogen-doped carbon nanospheres from polydopamine for high-rate

Journal Article

Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough receiver

Honglun YANG, Qiliang WANG, Jingyu CAO, Gang PEI, Jing LI

Journal Article

Improved rate-based modeling of carbon dioxide absorption with aqueous monoethanolamine solution

Stefania MOIOLI, Laura A. PELLEGRINI, Simone GAMBA, Ben LI

Journal Article

Economic Growth Model Based on Six Basic Factors of Production—Xu Growth Rate Equation

Shou-bo Xu,Zong-yuan Huang

Journal Article