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2009 60

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Flutter control effect and mechanism of central-slotting for long-span bridges

YANG Yongxin, GE Yaojun, XIANG Haifan

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 298-304 doi: 10.1007/s11709-007-0039-6

Abstract: The flutter control effect and mechanism of central-slotting, which have gradually been adopted in theThe control effect of central-slotting depends on the aerodynamic configuration of the original girderTheoretical investigations indicated that the differences in flutter control effects come from the differentmodality especially the participation level of heaving motion also has a significant influence on the controleffect of central-slotting.

Keywords： aerodynamic configuration     aerodynamic performance     flutter mechanism     aerodynamic stability     theoretical analysis    

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Improving existing “reaching law” for better discrete control of seismically-excited building structures

Zhijun LI, Zichen DENG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 111-116 doi: 10.1007/s11709-009-0022-5

Abstract: a novel “composite reaching law” was explained in details: 1) the equation of discrete motion for a controlsystem; 2) the design of discrete-time variable structure control.shear-type building structure was used to verify the effectiveness of the discrete variable structure controlThe results of numerical example analysis of the model show that the control law can effectively reducethe peak value of seismic response of the building structure and the chattering effect of the control

Keywords： discrete-time variable structure control     composite reaching law     chattering effect     saturated control law    

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Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Frontiers of Structural and Civil Engineering 2012, Volume 6, Issue 4,   Pages 348-357 doi: 10.1007/s11709-012-0176-4

Abstract: The analysis indicates that the effect of environment temperature should be considered for the SMA damperHowever, the rapid loading rate induced heat generation has little adverse effect.

Keywords： damage control design     shape memory alloy     temperature effect    

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Research on the Longitudinal End Effect ofSingle Linear Induction Motor

Xu Wei,Sun Guangsheng

Strategic Study of CAE 2007, Volume 9, Issue 3,   Pages 21-27

Abstract: The changes of mutual inductance and resistance in d axis indicate both the second longitudinal end effectThen the article establishes SLIM control equations connected with the rotor-flux oriented(RFO)vectorcontrol theory in rotary motor.

Keywords： single linear induction motor(SLIM)     rotor-flux oriented(RFO)control     end effect     decouple control     accommodation    

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The 32 m span box girder prestressing effect monitoring and creep camber control for Wuhan-Guangzhou

Song Jinxi

Strategic Study of CAE 2009, Volume 11, Issue 1,   Pages 60-66

Abstract: montoring and numerical analysis for 32 m concrete prestressed box girder prestressing and elastic camber effectThe effect of monitoring and analysis, based on the engineering practice, the control measures of the

Keywords： Wuhan-Guangzhou passenger express line     32 m box girder     prestressing effect monitoring     creep cambercontrol    

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Assessment of bridge expansion joints using long-term displacement measurement under changing environmental conditions

Youliang DING, Aiqun LI

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 3,   Pages 374-380 doi: 10.1007/s11709-011-0122-x

Abstract: Statistical process control using mean value control charts is further used to detect damage to the bridge

Keywords： structural health monitoring     displacement     expansion joint     temperature effect     wind effect     traffic loading     statistical process control     suspension bridge    

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EFFECT OF SOLARIZATION TO KILL BRADYSIA CELLARUM ON CHINESE CHIVE GROWTH AND SOIL MICROBIAL DIVERSITY

Frontiers of Agricultural Science and Engineering 2022, Volume 9, Issue 1,   Pages 52-62 doi: 10.15302/J-FASE-2021402

Abstract: An effective and more environmentally safe method than pesticides is needed for its control.The efficacy of B. cellarum control, growth of Chinese chive and soil microbial diversityThe results show that on the first day after soil solarization 100% control of B. cellarumcontrol plots over the first 10 d afterChive growth in solarized plots increased subsequently to match that in the control plots.

Keywords： Bradysia cellarum / Chinese chive / control / soil microbes / soil solarization    

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Effect of chemical dose on phosphorus removal and membrane fouling control in a UCT-MBR

Guangrong Sun, Chuanyi Zhang, Wei Li, Limei Yuan, Shilong He, Liping Wang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1085-8

Abstract: To enhance phosphorus removal and make the effluent meet the strict discharge level of total phosphorus (TP, 0.5 mg/L), flocculant dosing is frequently applied. In this study, the performance of aluminum sulfate dosing in a University of Cape Town Membrane Bioreactor (UCT-MBR) was investigated, in terms of the nutrients removal performance, sludge characteristics and membrane fouling. The results indicated that the addition of aluminum sulfate into the aerobic reactor continuously had significantly enhanced phosphorus removal. Moreover, COD, NH -N and TN removal were not affected and effluent all met the first level A criteria of GB18918-2002. In addition, the addition of aluminum sulfate had improved the sludge activity slightly and reduced trans-membrane pressure (TMP) increase rate from 1.13 KPa/d to 0.57 KPa/d effectively. The membrane fouling was alleviated attributed to the increased average particle sizes and the decreased accumulation of the small sludge particles on membrane surface. Furthermore, the decline of extracellular polymeric substance (EPS) concentration in mixed sludge liquid decreased its accumulation on membrane surface, resulting in the mitigation of membrane fouling directly.

Keywords： University of Cape Town Bioreactor (UCT-MBR)     enhanced nutrients removal     aluminum sulfate     sludge activity     membrane fouling    

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Effect of oxytocin on gastric ischemia-reperfusion injury in rats

ZHANG Wenwen, ZHANG Jianfu, ZHANG Yongmei, XU Ming

Frontiers of Medicine 2007, Volume 1, Issue 4,   Pages 433-437 doi: 10.1007/s11684-007-0085-4

Abstract: The effect of peripherally administered oxytocin (OT) on gastric ischemia-reperfusion injury (GI-RI)Compared with the control group (NS plus GI-R only, GMDI 121.33±10.40, = 6), the intra peritoneal (ip5.58 respectively ( = 6); the gastric fluid output and the gastric acidity (evaluated by pH) of the controlThe effect of oxytocin was reversed by atosiban, a selective oxytocin receptor antagonist.This effect of oxytocin may be mediated through the vagus and sympathetic nerve, and then lead to the

Keywords： control     significant difference     surgical     statistical significance     Sprague-Dawley    

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Theoretical and experimental study on seismic response control on top of Three-Gorges ship lift towers

Weilian QU, Jianwei TU

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1,   Pages 32-41 doi: 10.1007/s11709-009-0003-8

Abstract: A vertical ship lift under earthquake excitation may suffer from a whipping effect due to the suddenproposes a roof magnetorheological (MR) intelligent isolation system to prevent the seismic whipping effectestablished, the inverse neural network controlling algorithm was proposed and the fundamental semi-active controlwas carried out and the results of the inverse neural network control strategy and passive isolationIt was proven that the MR intelligent isolation system with proper control strategy can greatly reduce

Keywords： Three-Gorges ship lift tower     whipping effect     magnetorheological (MR) intelligent isolation system     neural    

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A low power, eco-friendly multipurpose thermoelectric refrigerator

N. Jagan Mohan REDDY

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 79-87 doi: 10.1007/s11708-015-0380-8

Abstract: design and implementation of a low power and eco-friendly refrigeration system using the thermoelectric effectBut a thermoelectric refrigerator exploits the principle of the Peltier effect, thus avoiding the utilization

Keywords： low power     eco-friendly     multipurpose     TEC-12706     Peltier effect     microcontroller (P89V51RD2BN)     temperaturecontrol    

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Research on Bionic Fungicide Yintai and Its Application

Meng Zhaoli,Fang Xiangyang,Luo Lan,Shang Jian

Strategic Study of CAE 2007, Volume 9, Issue 3,   Pages 28-34

Abstract: Field control effects on4kinds of diseases, e.g. , Rhizoctonia cerealis, are higher than 85%, with safety

Keywords： ginkgol     bionic synthesis     Yintai     control effect    

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A Brief Review of Rock-Filled Concrete Dams and Prospects for Next-Generation Concrete Dam Construction Technology Review

Feng Jin, Duruo Huang, Michel Lino, Hu Zhou

Engineering 2024, Volume 32, Issue 1,   Pages 100-106 doi: 10.1016/j.eng.2023.09.020

Abstract: fundamental scientific issues related to RFC need to be addressed: namely, the pouring compactness and the effectprovides a timely review of fundamental research and innovations in the design, construction, and quality control

Keywords： Rock-filled concrete dam     Pouring compactness     Effect of large rocks     Intelligent quality control     Unmanned    

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Analysis of effect of different construction methods of piles on the end effect on skin friction of piles

ZHOU Hongbo, CHEN Zhuchang

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 4,   Pages 458-463 doi: 10.1007/s11709-007-0062-7

Abstract: Based on the comparative analysis of end effect on skin friction of displacement-pile (driven pile),the end effect on skin friction of bored pile is studied.The end effect on skin friction between driven pile and bored pile is different and the end effect onThe concept of additional mud cake formed by the effect of cushion at the bottom of borehole during pouringconcrete is introduced to explain the mechanism of end effect on skin friction of the bored pile.

Keywords： distance     different     concept     additional     bottom    

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A review on different theoretical models of electrocaloric effect for refrigeration

Frontiers in Energy 2023, Volume 17, Issue 4,   Pages 478-503 doi: 10.1007/s11708-023-0884-6

Abstract: The performance parameters for characterizing the electrocaloric effect are isothermal entropy changeThis paper reviews the electrocaloric effect of ferroelectric materials based on different theoreticalsimulation, and finite element analysis) to explain the basic theory of calculating the electrocaloric effectThen, it comprehensively reviews the recent progress of these methods in regulating the electrocaloric effectand the generation mechanism of the electrocaloric effect.

Keywords： electrocaloric effect     effective Hamiltonian     phase-field modeling     different theoretical models    

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Title Author Date Type Operation

Flutter control effect and mechanism of central-slotting for long-span bridges

YANG Yongxin, GE Yaojun, XIANG Haifan

Journal Article

Improving existing “reaching law” for better discrete control of seismically-excited building structures

Zhijun LI, Zichen DENG

Journal Article

Temperature effects of shape memory alloys (SMAs) in damage control design of steel portal frames

Xiaoqun LUO, Hanbin GE, Tsutomu USAMI

Journal Article

Research on the Longitudinal End Effect ofSingle Linear Induction Motor

Xu Wei,Sun Guangsheng

Journal Article

The 32 m span box girder prestressing effect monitoring and creep camber control for Wuhan-Guangzhou

Song Jinxi

Journal Article

Assessment of bridge expansion joints using long-term displacement measurement under changing environmental conditions

Youliang DING, Aiqun LI

Journal Article

EFFECT OF SOLARIZATION TO KILL BRADYSIA CELLARUM ON CHINESE CHIVE GROWTH AND SOIL MICROBIAL DIVERSITY

Journal Article

Effect of chemical dose on phosphorus removal and membrane fouling control in a UCT-MBR

Guangrong Sun, Chuanyi Zhang, Wei Li, Limei Yuan, Shilong He, Liping Wang

Journal Article

Effect of oxytocin on gastric ischemia-reperfusion injury in rats

ZHANG Wenwen, ZHANG Jianfu, ZHANG Yongmei, XU Ming

Journal Article

Theoretical and experimental study on seismic response control on top of Three-Gorges ship lift towers

Weilian QU, Jianwei TU

Journal Article

A low power, eco-friendly multipurpose thermoelectric refrigerator

N. Jagan Mohan REDDY

Journal Article

Research on Bionic Fungicide Yintai and Its Application

Meng Zhaoli,Fang Xiangyang,Luo Lan,Shang Jian

Journal Article

A Brief Review of Rock-Filled Concrete Dams and Prospects for Next-Generation Concrete Dam Construction Technology

Feng Jin, Duruo Huang, Michel Lino, Hu Zhou

Journal Article

Analysis of effect of different construction methods of piles on the end effect on skin friction of piles

ZHOU Hongbo, CHEN Zhuchang

Journal Article

A review on different theoretical models of electrocaloric effect for refrigeration

Journal Article