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Effects of Polycarboxylate Superplasticizers on Hydration and Microstructure of Hardened Cement Paste Ruijun Gao1,a,Shenghua Lv1,b and Qiang Cao1,2,c 1College of Resource and Environment, Shaanxi University of Science & Technology, Xi’an 710021, Shaanxi, China 2College of Chemistry and Life Science, Weinan Normal University, Weinan 714000, Shaanxi,China agao_423@163.com, blvsh@sust.edu.cn (corresponding author), clab_cao@tom.com Keywords: polycarboxylate, superplasticizer, hydration, microstructure Abstract.
Experiment and methods Materials.
Acknowledgements This work is partially supported by the National Natural Science foundation of China (No. 21076121) and the Industrial foundation of the Education Office of Shaanxi Province (06JC21) and Graduate innovation fund of Shaanxi University of Science & Technology.
Li，Study on Synthesis and Application of a New Vinyl Graft Copolymer Superplasticizer, Journal of Applied Polymer Science.117(2010) 273-280
Duan, Effects of chemical structure on adsorption of polycarboxylate superplasticizers on cement particles, Applied Mechanics and Materials. 80-81(2011)185-189

Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China 2.
In the global consumption of non-ferrous materials, it is second only after aluminum.
Acknowledgements The authors are thankful to the financial support from the Join Foundation the National Natural Science Foundation Committee of China (Grant No.51174103), National Science and Technology Support Plan (Grant No. 2012BAB10B07) and Analyze Test Foundation of Kunming university of science and technology (No. 20130538).
[2]Yanhua Guo, Huixin Dai and Junlong Yang: Advanced materials research.
[3]Huang Hongjun , Zhu Haifeng and Hu Yuehua:International Journal of Mining Science and Technology.

Preparation of UV curable waterborne polyurethane and its application in coatings Lei Wang1,a, Xiaojuan Lai1,b, Shaoyun Ma2,c 1Key laboratory of Auxiliary Chemistry &Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science & Technology, Xi’an 710021, China 2Oilfield Chemical Research and Development Center of Yanchang Oilfield Fengyuan Enterprise General Company, Xi’an 710021, China a05wanglei@sust.edu.cn,b3578466@163.com,c18629115577@163.com Keywords: UV curing; waterborne polyurethane; films; properties Abstract.
Exprimental Materials Isophorone diisocyanate(IPDI) and polycaprolactone polyol (PCL) were obtained from Bayer, Germany. 2,2-dimenthylol butanoic acid(DMBA), chemically pure, Tianjin Chemical Reagent Factory; dibutyltin dilaurate(DBTDL), analytically pure, Tianjin Kermel chemical reagent Co., Ltd.
Acknowledgements This work was financially supported by the national natural science foundation of China (51103081), science and technology plan of education department of Shaanxi province(2013JK0705), science and technology plan of Xianyang(2012k05-03), startup foundation for scientific study(BJ11-17) and academic backbone cultivation program of Shaanxi university of science & technology (XSG2010012).
Journal of Functional Polymers Vol. 25 (2012), p. 62 [6] Deng Zhaoxia, Ye Daiyong, Chen Huanqin.
Materials Review Vol. 26 (2012), p. 107

Using soft marine clay and muck as the material source, it can not only dredge the channel by clearing the muck but also protect the environment.
Meanwhile, it can significantly reduce the cost in transporting the fill material and lower time required in reclamating initial land [1-2].
Research Situation Dredger fill formed by hydraulic emplacement is the provenance material for reclaiming land in most coastal areas.
[2] Pang Hou-guo, Liu Pin-hui, and Xiao Shu-fang, “Analysis on mechanism of drain and consolidation of marine soft soil,” Journal of Jilin University: Earth Science Edition, 2005, pp. 207-212, 217 (In Chinese)
[8] Song Jing, Wang Qing, and Xia Yu-bin, “Research on physical and chemical index of dredger fill with high clay by vacuum preloading”, Journal of Jilin University: Earth Science Edition, 2011 (In Chinese)

Fig.1 Force diagram of prestressing tendon in curving duct The derivation process about the formula of frictional loss for prestressing tendons in current bridge codes has two obvious problems below: 1.Assuming that the concrete material is rigid, namely, ignoring the physical properties of materials; 2.Assuming that the contact stress p is only depends on the tension T and the radius of curvature R.
Journal of China & Foreign Highway, 2005,(01):56-58.
Causes and Precautionary Measures to Long-term Deflection of Long Span Pre-stressed Concrete Box Girder of Continuous Rigid Frame Bridge[J].Journal of Chongqing Jiaotong University(Natural Science,2007(08).
Beijing：Science Press, 2009, pp 701-705 [8] Kaiyin Zhang, Chen Li, Chen Cheng.
Civil Engineering and Management Journal (ISSN2095-0895/CN42-1816/TU),2011.28(4):6-11(in Chinese)

.: Journal of Zhejiang University (Engineering Science) Vol. 39 (2005), p. 1435-1438,in Chinese. ].
Straw rich in K and Na was chosen as the experimental material in this study.
In the biomass entrained-flow gasification, the total yield of gaseous and solid products was about 90%[[] Jinsong Zhou, Hui Zhao, Xiaowei Cao et al.: Journal of Zhejiang University (Engineering Science) Vol. 43(2009), p. 128-134,in Chinese. ].
With the addition of additives, there were more or less flocculent materials on the ash surface.
And the residence time of the raw material and additives in the gasifier was too short to have a complete reaction.

By modeling the underlying mechanics, thermodynamics, or material science of the system, this approach provides an accurate and interpretable framework for predicting failures.
Monno, A review of prognostics and health management of machine tools, The International Journal of Advanced Manufacturing Technology, vol. 110, no. 5-6, pp. 1417-1438, 2020. https://doi.org/10.1007/s00170-020-05202-3 [4] M.
Kamaruddin, Preventive maintenance (PM) planning: a review, Journal of Quality in Maintenance Engineering, vol. 23, pp. 114-143, 2017
Zerhouni, Data-driven prognostic method based on Bayesian approaches for direct remaining useful life prediction, Journal of Intelligent Manufacturing, vol. 27, pp. 1037-1048, 2014
Schapire, A Decision-Theoretic Generalization of On-Line Learning and an Application to Boosting, Journal of Computer and System Sciences, 55 (1) (1997) 119–139.

The Long-Term Dynamics in Crude Oil Prices Baoming Qiao1, a, Si Zhang1,b and Hao Jin 1,2,c 1School of Science, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054, China 2Postdoctoral, Xi’an University of Science and Technology, Xi’an, Shaanxi, 710054, China aqiaobm@xust.edu.cn, bzhangsi_2004@126.com, cjinhao_2004@126.com Keywords: Crude oil prices, Skewness, Volatility, Jump-diffusion, Markov Chain Monte Carlo.
Almost all manufactured goods rely on oil at some stage in their production – whether for energy, transportation or raw materials.
Mandelbrot, New methods in statistical economics, Journal of Political Economy 61 (1963) 421–40
Chen, Empirical performance of alternative pricing models, Journal of Finance 52 (1997) 2003–49
Bengtsson, Jump spillover in international equity markets, Journal of Financial Econometrics 4 (2006) 167–03.

Experimental Materials.
Advances in colloid and interface science.
Surface Science Vol.552 (2004) L53–L57 [3] Milton J.
Journal of Dispersion Science and Technology, Vol. 30 (2009)p. 61-64 [5] Lijuan Han, Zhongbing ye, Hong Chen, et al.
Journal of Surfactants and Detergents, Vol. 12 (2009)p. 185-190 [6] Shanfa Tang, Hai Tian, Quan Yue, et al..Journal of Oil and Gas Technology, Vol. 30 (2008)p. 313-317 [7] Shanfa Tang, Quan Yue, Ruidong Wu, et al.

Starting materials were milled at ambient temperature in argon protective atmosphere.
The starting materials were commercial powders of B4C (99%, 200 mesh) and Ti (99%, 200 mesh), respectively.
Raw materials were milled in a planetary ball mill (Model: QM-3SP2 Nanjing Nanda instrument factory).
In our study using the method of mechanical alloying, made raw materials formed non-stable intermediate phase.
International Journal of Refractory Metals & Hard Materials. 26 (2008) 383–388 [3] M.