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Optimization of denitrifying phosphorus removal in a pre-denitrification anaerobic/anoxic/post-aeration+ nitrification sequence batch reactor (pre-A

Weihua Zhao, Meixiang Wang, Jianwei Li, Yu Huang, Baikun Li, Cong Pan, Xiyao Li, Yongzhen Peng

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1084-1

Abstract:

A novel two sludge pre-A2NSBR system was developed.

Keywords： Denitrifying phosphorus removal     C/N ratio     Nitrate recycling     Carbon source type     Biological nutrient removal     Pre-A2NSBR system    

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China’s pre-2020 CO

Hailin WANG

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 571-578 doi: 10.1007/s11708-019-0640-0

Abstract: China achieved the reduction of CO intensity of GDP by 45% compared with 2005 at the end of 2017, realizing the commitment at 2009 Copenhagen Conference on emissions reduction 3 years ahead of time. In future implementation of the “13th Five-Year Plan (FYP),” with the decline of economic growth rate, decrease of energy consumption elasticity and optimization of energy structure, the CO intensity of GDP will still have the potential for decreasing before 2020. By applying KAYA Formula decomposition, this paper makes the historical statistics of the GDP energy intensity decrease and CO intensity of energy consumption since 2005, and simulates the decrease of CO intensity of GDP in 2020 and its influences on achieving National Determined Contribution (NDC) target in 2030 with scenario analysis. The results show that China’s CO intensity of GDP in 2020 is expected to fall by 52.9%–54.4% than the 2005 level, and will be 22.9%–25.4% lower than 2015. Therefore, it is likely to overfulfill the decrease of CO intensity of GDP by 18% proposed in the 13th FYP period. Furthermore, the emission reduction potentiality before 2020 will be conducive to the earlier realization of NDC objectives in 2030. China’s CO intensity of GDP in 2030 will fall by over 70% than that in 2005, and CO emissions peak will appear before 2030 as early as possible. To accelerate the transition to a low-carbon economy, China needs to make better use of the carbon market, and guide the whole society with carbon price to reduce emissions effectively. At the same time, China should also study the synergy of policy package so as to achieve the target of emission reduction.

Keywords： China’s National Determined Contribution     emission reduction potential     scenario analysis     CO2   

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Nonlinear analysis of pre-tensioned glass wall facade by stability function with initial imperfection

Siu-Lai CHAN, Yaopeng LIU, Andy LEE,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 3,   Pages 376-382 doi: 10.1007/s11709-010-0086-2

Abstract: Pre-tensioned high strength trusses using alloy steel bar are widely used as glass wall supporting systemsThe breakage of glass panes in this type of system occurs occasionally, likely to be due to error inin addition to other factors like glass impurity and stress concentration around opening in a spider systemThe resistance of lateral wind pressure of the system makes use of high tension force coupled with thevarious effects, such as support settlement due to live loads and material creep, temperature change, pre-tension

Keywords： tension system     glass wall     nonlinear analysis     pre-tensioning     second-order analysis    

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A pre-compensation method of the systematic contouring error for repetitive command paths

D. L. ZHANG,Y. H. CHEN,Y. P. CHEN

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 4,   Pages 367-372 doi: 10.1007/s11465-015-0367-5

Abstract:

For a repetitive command path, pre-compensating the contouring error by modifying the command pathTo obtain the pre-compensation value with better accuracy, this paper proposes the use of a back propagationFurthermore, by using the extracted function, the contouring error can be easily pre-compensated.

Keywords： contouring error     pre-compensation     motion control system     back propagation (BP) neural network    

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dioxide over porous solid adsorbents lithium silicate, lithium aluminate and magnesium aluminate at pre-combustion

P. V. Korake, A. G. Gaikwad

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2,   Pages 215-226 doi: 10.1007/s11705-010-1012-9

Abstract: over porous solid adsorbents such as lithium silicate, lithium aluminate, and magnesium aluminate at pre

Keywords： capturing CO2     lithium silicate     lithium aluminate     magnesium aluminate    

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Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 3,   Pages 411-428 doi: 10.1007/s11709-023-0928-3

Abstract: subjected to static bending tests at the center and rail seat sections, and the screw on the fastening system

Keywords： pre-stressed concrete sleeper     ultrahigh performance fiber-reinforced concrete     pull-out test     static    

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Study on new assessment system for safety health monitoring of Xihoumen and Jintang Bridges

Zheng Chun,Wu Chongnan,Zhang Xinyue,Shen Wang,Liang Zhu,Ma Qin

Strategic Study of CAE 2010, Volume 12, Issue 7,   Pages 84-89

Abstract:

With the development of health monitoring system for the long span bridgeexperiences of practice engineering—Zhoushan Island Xihoumen and Jintang Bridges' health monitoring system, the authors designed a new assessment system, making comprehensive assessment of long span bridges,

Keywords： long span bridge     structural assessment system     structure pre-warning system    

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Investigation into viability of using two-stage (pre-placed aggregate) concrete in Irish setting

John O’MALLEY, Hakim S. ABDELGADER,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 127-132 doi: 10.1007/s11709-010-0007-4

Abstract: Two-stage (pre-placed aggregate) concrete (TSC) consists of coarse aggregate, which is first deposited

Keywords： grout     pre-placed     concrete     two-stage concrete (TSC)    

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Evaluation of the static and dynamic structural performance of segmental pre-stressed concrete box girder

Ali Fadhil NASER, Zonglin WANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 164-177 doi: 10.1007/s11709-013-0196-8

Abstract: side spans by sticking the steel plates, strengthening the whole bridge structure by using external pre-stressing

Keywords： structural performance     steel plates     external pre-stressing     cracks     grouting method     static    

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Techno-economic comparison of three technologies for pre-combustion CO

Simon Roussanaly, Monika Vitvarova, Rahul Anantharaman, David Berstad, Brede Hagen, Jana Jakobsen, Vaclav Novotny, Geir Skaugen

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 3,   Pages 436-452 doi: 10.1007/s11705-019-1870-8

Abstract: power plant located in the Czech Republic: (1) Physical absorption with a Rectisol-based process; (2)

Keywords： carbon capture and storage (CCS)     techno-economic comparison     pre-combustion capture     physical solvent     low-temperature    

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Hybrid flexural components: Testing pre-stressed steel and GFRP bars together as reinforcement for flexural

Mohammed FARUQI, Oved I. MATA, Francisco AGUINIGA

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 3,   Pages 352-360 doi: 10.1007/s11709-017-0453-3

Abstract:

Concrete members historically have used either pre-stressed steel or steel bars.However, the flexure behavior of a hybrid system reinforced by the combination of pre-stressed steelEach slab had 37.41 mm2 prestressing wire with a failure stress of 1722.5 MPa.The theoretical slabs were either reinforced with pre-stressed steel or GFRP rebars, or a hybrid systemIt was found that the hybrid system produces better results.

Keywords： Partial pre-stressing     composite structures     GFRP bars    

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An interval type-2 fuzzy logic controller for TCSC to improve the damping of power system oscillations

Manoj Kumar PANDA, Gopinath PILLAI, Vijay KUMAR

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 307-316 doi: 10.1007/s11708-013-0269-3

Abstract: In this paper an interval type-2 fuzzy logic controller (IT2FLC) was proposed for thyristor controlledseries capacitor (TCSC) to improve power system damping.For controller design, memberships of system variables were represented using interval type-2 fuzzy setsThe three-dimensional membership function of type-2 fuzzy sets provided additional degree of freedomSimulations conducted on a single machine infinite bus (SMIB) power system showed that the proposed controller

Keywords： power system oscillations     thyristor controlled series capacitor (TCSC)     type-2 fuzzy logic system     intervaltype-2 fuzzy logic controller (IT2FLC)    

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A new anti-jamming communication technical system：pre-encoded code hopping spread spectrum

Yao Fuqiang,Zhang Yi

Strategic Study of CAE 2011, Volume 13, Issue 10,   Pages 69-75

Abstract:

A kind of pre-encoded code hopping spread spectrum (PCHSS) communicationtechnical system for anti-jamming communication is brought forward and researched after analyzing itsThe technical system and its basic performance have been proved in practice.

Keywords： anti-jamming communication     direct-sequence spread spectrum     pre-encoded code hopping spread spectrum    

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Virtual pre-assembly for large steel structures based on BIM, PLP algorithm, and 3D measurement

Ying ZHOU, Wan WANG, Hanbin LUO, Yan ZHANG

Frontiers of Engineering Management 2019, Volume 6, Issue 2,   Pages 207-220 doi: 10.1007/s42524-019-0016-5

Abstract: The current physical pre-assembly method of large steel structures is time consuming and costly and requiresThus, the pre-assembly of large steel structures in a virtual way, starting from building informationIn this study, an innovative method for virtual pre-assembly is proposed on the basis of BIM, plane-line-point

Keywords： steel structure     pre-assembly     BIM     plane-line-point     3D measurement    

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Quantitatively assessing the pre-grouting effect on the stability of tunnels excavated in fault

Xiao YAN, Zizheng SUN, Shucai LI, Rentai LIU, Qingsong ZHANG, Yiming ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1393-1404 doi: 10.1007/s11709-019-0563-1

Abstract: Pre-grouting is a popular ground treatment strategy utilized to enhance the strength and stability oftunnel section are evaluated, thereby assisting designers by quantitatively assessing the effects of pre-grouting

Keywords： pre-grouting     stability analysis     factor of safety     discontinuity layout optimization    

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Title Author Date Type Operation

Optimization of denitrifying phosphorus removal in a pre-denitrification anaerobic/anoxic/post-aeration+ nitrification sequence batch reactor (pre-A

Weihua Zhao, Meixiang Wang, Jianwei Li, Yu Huang, Baikun Li, Cong Pan, Xiyao Li, Yongzhen Peng

Journal Article

China’s pre-2020 CO

Hailin WANG

Journal Article

Nonlinear analysis of pre-tensioned glass wall facade by stability function with initial imperfection

Siu-Lai CHAN, Yaopeng LIU, Andy LEE,

Journal Article

A pre-compensation method of the systematic contouring error for repetitive command paths

D. L. ZHANG,Y. H. CHEN,Y. P. CHEN

Journal Article

dioxide over porous solid adsorbents lithium silicate, lithium aluminate and magnesium aluminate at pre-combustion

P. V. Korake, A. G. Gaikwad

Journal Article

Experimental and parametrical investigation of pre-stressed ultrahigh-performance fiber-reinforced concrete

Journal Article

Study on new assessment system for safety health monitoring of Xihoumen and Jintang Bridges

Zheng Chun,Wu Chongnan,Zhang Xinyue,Shen Wang,Liang Zhu,Ma Qin

Journal Article

Investigation into viability of using two-stage (pre-placed aggregate) concrete in Irish setting

John O’MALLEY, Hakim S. ABDELGADER,

Journal Article

Evaluation of the static and dynamic structural performance of segmental pre-stressed concrete box girder

Ali Fadhil NASER, Zonglin WANG

Journal Article

Techno-economic comparison of three technologies for pre-combustion CO

Simon Roussanaly, Monika Vitvarova, Rahul Anantharaman, David Berstad, Brede Hagen, Jana Jakobsen, Vaclav Novotny, Geir Skaugen

Journal Article

Hybrid flexural components: Testing pre-stressed steel and GFRP bars together as reinforcement for flexural

Mohammed FARUQI, Oved I. MATA, Francisco AGUINIGA

Journal Article

An interval type-2 fuzzy logic controller for TCSC to improve the damping of power system oscillations

Manoj Kumar PANDA, Gopinath PILLAI, Vijay KUMAR

Journal Article

A new anti-jamming communication technical system：pre-encoded code hopping spread spectrum

Yao Fuqiang,Zhang Yi

Journal Article

Virtual pre-assembly for large steel structures based on BIM, PLP algorithm, and 3D measurement

Ying ZHOU, Wan WANG, Hanbin LUO, Yan ZHANG

Journal Article

Quantitatively assessing the pre-grouting effect on the stability of tunnels excavated in fault

Xiao YAN, Zizheng SUN, Shucai LI, Rentai LIU, Qingsong ZHANG, Yiming ZHANG

Journal Article