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| 1 | Abnormality diagnosis of cracks in the concrete dam based on dynamical structure mutation显示文摘A method of the fuzzy cross-correlation factor exponent in dynamics is researched and proposed to diagnose abnormality of cracks in the concrete dam. Moreover, the Logistic time series changing from period-doubling bifurcation to chaos is tested first using this method. Results indicate that it can distinguish inherent dynamics of time series and can detect mutations. Considering that cracks in the concrete dam constitute an open, dissipative and complex nonlinear dynamical system, a typical crack on the downstream face of a concrete gravity arch dam is analyzed with the proposed method. Two distinct mutations are discovered to indicate that the abnormality diagnosis of cracks in the concrete dam is achieved dynamically through this method. Furthermore, because it can be directly utilized in the measured crack opening displacement series to complete abnormality diagnosis, it has a good prospect for practical applications. | GU ChongShi LI ZhanChao XU Bo | 2011 | Science China(Technological Sciences)2011，54，7： | 18 |
| 2 | Form-fnding methods for deployable mesh reflector antennas显示文摘Deployable high-frequency mesh reflector antennas for future communications and observations are required to obtain high gain and high directivity.In order to support these new missions,reflectors with high surface accuracy are widely required.The form-fnding analysis of deployable mesh reflector antennas becomes more vital which aims to determine the initial surface profle formed by the equilibrium prestress distribution in cables to satisfy the surface accuracy requirement.In this paper,two form-fnding methods for mesh reflector antennas,both of which include two steps,are proposed.The frst step is to investigate the prestress design only for the cable net structure as the circumferential nodes connected to the supporting truss are assumed fxed.The second step is to optimize the prestress distribution of the boundary cables connected directly to the supporting truss considering the elastic deformation of the antenna structure.Some numerical examples are carried out and the simulation results demonstrate the proposed form-fnding methods can warrant the deformed antenna reflector surface matches the one by design and the cable tension forces fall in a specifed range. | Li Tuanjie Jiang Jie Deng Hanqing Lin Zhanchao Wang Zuowei | 2013 | Chinese Journal of Aeronautics2013，26，5： | 15 |
| 3 | Commentary of research situation and innovation frontier in hydro-structure engineering science显示文摘In order to utilize water and hydropower resources in China,multitudes of water projects are established or to be constructed as an integral part of the national economy's infrastructure.Under these circumstances,there are two outstanding problems:1) a mass of existing dams are in danger and 2) in the southwest water-conservancy construction plan,dozens of existing or planned dams are high dams or even super high dams with heights between 200 and 300 m.In accordance with demands of 'the National Program for Medium-and Long-Term Scientific and Technological Development' on the innovation frontier in hydro-structure engineering science,various key problems in science and technology such like stress analysis,ultimate bearing capacity,nonlinearity etc.for high dams,super high dams and sick dams have been investigated.This paper makes a commentary on the advances and results of the researches,then analyzes the advantages and disadvantages of current theoretics and methodologies,and finally presents corresponding research directions and the frontier of innovation. | WU ZhongRu PENG Yan LI ZhanChao LI Bo YU Hong ZHENG ShouRen | 2011 | Science China(Technological Sciences)2011，54，4： | 14 |
| 4 | Comprehensive evaluation methods for dam service status显示文摘More than 87000 dams have been built in China,and about one third of them are risky projects.A number of high and ultra-high dams are being constructed in China's western region.The current dam construction practice tends to focus on socio-economic benefits and neglect the environment and ecology.Furthermore,periodic examinations are intended to ensure the structural safety of dams.This paper proposes a general evaluation principle for dam service.This principle stipulates that dam projects should have maximum socio-economic benefits and minimum negative effects on the environment and ecology.To satisfy the general principle of mutual harmony,socio-economic benefits,dam safety,environment,and ecology are analyzed,and the evaluation methods for dam service status are discussed.Then,a fusion algorithm of interlayer assessment is proposed on the basis of evidence theory and the fuzzy comprehensive analysis method.Finally,a comprehensive evaluation model is established.Example analysis shows that the proposed theories and methods can fulfill scientific assessment of the service status of dams. | WU ZhongRu XU Bo GU ChongShi LI ZhanChao | 2012 | Science China(Technological Sciences)2012，55，8： | 10 |
| 5 | Abnormality diagnosis of cracks in the concrete based on double crack tip opening displacement criterion显示文摘The distinct characteristic of subcritical propagation requires at least two control parameters to completely express expansion of cracks in the concrete.The basic definition of crack tip opening displacement(CTOD)is corrected based on the monitored variable of crack mouth opening displacement(CMOD).The improved CTOD criterion,called the double CTODd criterion,for the abnormality diagnosis of cracks in the concrete is constructed based on the fictitious crack model and linear asymptotic superposition assumptions of the concrete.The double CTODd criterion is verified using two specimens of three-point bending notched beam.The verification results are reasonable and correct.The establishment of the double CTODd criterion lays a solid theoretical foundation for the abnormality diagnosis of cracks in concrete structures(such as concrete dams)based on CMOD. | LI ZhanChao GU ChongShi WU ZhongRu | 2013 | Science China(Technological Sciences)2013，56，8： | 5 |
| 6 | Characterization of Five Kinds of Wood Vinegar Obtained from Agricultural and Forestry Wastes and Identification of Major Antioxidants in Wood Vinegar显示文摘Wood vinegar(WV)has a powerful antioxidant activity,but it is unclear which components are responsible for the antioxidant activity.In the present study,the double-column retention index qualitative method was used for the identification of the major components in five kinds of W7 And the major antioxidants of wood vinegar were accurately identified with the aid of Pearson product-moment correlation coefficients and authentic standard samples. Our results demonstrate that phenolic compounds are mainly responsible for the powerful antioxidant activity. 2,6-Dimethoxyphenol is the most powerful antioxidant in WV.2-Methoxyphenol and 3-methyl-1,2-cyclopentanedioue also have an important influence on the antioxidant activity of WV.Our results suggest that the contents of 2-methoxyphenol,2,6-dimethoxyphenol and 3-methyl-1,2-cyclopentanedione should act as the criteria for evaluating the antioxidant activity of WV.Our work will provide useful information for WV's application in the fields of food and medicine as antioxidants. | LI Zhanchao ZHANG Zhiquan WU Lijie ZHANG Hanqi WANG Ziming | 2019 | Chemical Research in Chinese Universities2019，35，1： | 4 |
| 7 | Selective Adsorption of Co(II) by Mesoporous Silica SBA-15-Supported Surface Ion Imprinted Polymer: Kinetics, Isotherms, and Thermodynamics Studies显示文摘一个新奇表面离子印了吸附物[作为支持矩阵把 polyethyleneimine (PEI ) 用作功能单体和订的 mesoporous 硅石 SBA-15 的公司(II )-IIP] 与高选择为公司(II ) 分析作好准备。准备聚合物被 Fourier 传播描绘红外线的 spectrometry,扫描电子显微镜学, X 光检查衍射和氮吸附解吸附作用等温线。公司(II ) 吸附的洗澡实验在最佳条件下面被执行到公司(II )-IIP 上。试验性的数据被伪 first-order 和 pseudo-second-order 分析运动模型。pseudo-second-order 模型最好相关,这被发现运动数据。intraparticle 散开和液体电影散开被使用讨论吸附机制。结果证明那公司(II ) 吸附被 intraparticle 散开机制控制到 IIP 上,与可观的电影散开贡献一起。Freundlich 和 Dubinin-Radushke- vich 吸附模特儿兰米尔被使用决定等温线参数。兰米尔模型适合实验数据很好,最大值计算了到达的公司(II ) 的能力在房间温度下面的 39.26 mg/g。热力学的数据公司(II ) 的吸热的吸着进程的自然是指示的到公司(II )-IIP 上。公司(II )-IIP 与非印的聚合物相比为模板离子显示出高亲密关系和选择(捏) 。 | Liu, Yan Liu, Zhanchao Dai, diangdong Gao, Jie Xie, Jimin Yan, Yongsheng | 2011 | Chinese Journal of Chemistry2011，29，3： | 3 |
| 8 | On-line diagnosis method of crack behavior abnormality in concrete dams based on fluctuation of sequential parameter estimates显示文摘Research on on-line diagnosis method of crack behavior abnormality in concrete dams can provide support for timely grasping abnormality state of the crack itself and achieving real-time monitoring of the dam safety.Considering that samples of crack effects in concrete dams increase actually over monitoring time,a superiority criterion for the on-line diagnosis is determined so as to detect the abnormality moments timely and reliably.By integrating the safety monitoring statistical model of crack effect variable with change point theory,a fluctuation method of regression coefficients is established for the on-line diagnosis.In addition,each abnormality moment is detected by the cumulative sum of regression model residuals.Results indicate that abnormality of crack behavior in concrete dams can be characterized by structural instability of crack monitoring model.And causes of crack behavior abnormality can be analyzed by the established method,which will play an important role in dam safety monitoring.Further,taking the crack in a concrete gravity-arch dam as an example,the scientific rationality and validity of the established on-line diagnosis method are confirmed. | LI ZhanChao GU ChongShi WANG ZhengZhong WU ZhongRu | 2015 | Science China(Technological Sciences)2015，58，3： | 3 |
| 9 | Accumulation and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in soils around oil sludge in Zhongyuan oil field, China显示文摘 | Shaoping Kuang Zhanchao Wu and Laishi Zhao | 2011 | Environ Earth Sci2011，，64： | 1 |
| 10 | Selective adsorption behavior of Pb(II) by mesoporous silica SBA-15-supported Pb(II)-imprinted polymer based on surface molecularly imprinting technique显示文摘 | Yan Liu Zhanchao Liu Jie Gao Jiangdong Dai Juan Han Yun Wang Jimin Xie Yongsheng Yan | 2010 | Journal of Hazardous Materials2010，，1： | 1 |
| 11 | Study on Semi-Parametric Statistical Model of Safety Monito- ring of Cracks in Concrete Dams显示文摘 | Chongshi Gu Dong Qin Zhanchao Li | 2013 | Mathematical Problems in Engineering2013，，： | 1 |
| 12 | An ethanol-tolerant recombinant Escherichia coli expressing Zy- momonas mobilis pdc and adhB genes for enhanced ethanol production from xylose显示文摘 | Wang Zhanchao Chen Ming Xu Yuquan | 2008 | Biotechnol Lett2008，30，： | 1 |
| 13 | of Polycyclic Aromatic Hydrocarbons (PAHs) in Soils Around Oil Sludge in Zhongyuan Oil Field, China显示文摘 | Shaoping Kuang Accumulation and Zhanchao Wu Risk Assessment Laishi Zhao | 2011 | Environ Earth Sci2011，，64： | 1 |
| 14 | A surface ion-imprinted mesoporous sorbent for separation and determination of Pb(11) ion by flame atomic absorption spectrometry 显示文摘 | Yan Liu Zhanchao Liu Yun Wang Jiangdong Dai | 2011 | Microchim Acta2011，172，34： | 1 |
| 15 | Selective adsorp-tion behavior of Pb ( H ) by mesoporous silica SBA-15-supported Pb ( II )-imprinted polymer based onsurface molecularly imprinting technique显示文摘 | Yan L Zhanchao L Jie G | 2011 | Journalof Hazardous Materials2011，，186： | 1 |
| 16 | Selective adsorption behavior of Pb(II) by mesoporous silica SBA-15-supported Pb(II)-imprinted polymer based on surface molecularly imprinting technique显示文摘 | Yan Liu Zhanchao Liu Jie Gao Jiangdong Dai Juan Han Yun Wang Jimin Xie Yongsheng Yan | 2010 | Journal of Hazardous Materials2010，，1： | 1 |
| 17 | Accumulation and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in soils around oil sludge in Zhongyuan oil field, China显示文摘 | Shaoping Kuang Zhanchao Wu Laishi Zhao | 2011 | Environ Earth Sci2011，64，5： | 1 |
| 18 | Classification of G-protein coupled receptors based on support vector ma- chine with maximum relevance minimum redundancy and genetic algorithm显示文摘 | Li Zhanchao Zhou Xuan Dai Zong | 2010 | BMC Bioinformatics2010，11，： | 1 |
| 19 | The epidemic status and genetic diversity of 14 highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) isolates from China in 2009显示文摘 | Zhi Zhou Jianqiang Ni Zhen Cao Xue Han Yingju Xia Zhanchao Zi Kun Ning Qi Liu Lin Cai Peng Qiu Xiaoyu Deng Dongmei Hu Qian Zhang Yunfeng Fan Jiajun Wu Lilin Wang Miaojie Zhang Xiuling Yu Xinyan Zhai Kegong Tian | 2011 | Veterinary Microbiology2011，，3： | 1 |
| 20 | 3D thermomechanically coupled FEM analysis of large disk rolling process and trial production显示文摘 | Qinghua Li Zhanchao Ma Taiying Liu Fuguo Li Zhijian Wei Chunmin Su | 2014 | 2014 (1-4)2014，，1： | 1 |
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