Search results

The field situations are ever-changing during the during the construction period; the boundary conditions such as geological conditions, material properties, climate and hydraulic conditions, construction schedule, temperature control progress, arch closure process and impounding progress are different from those for the design period[1-4]; thus, various unpredictable issues during the construction period may occur in comparison with those during the design period; moreover, various operation conditions and countermeasure schedules prepared during the design period may not cover all conditions during the implementation period; in addition, the comprehensive study may not be carried out to a lot of detailed temperature control technologies during the design period.
By using the construction management information system developed in project fields and the all-dimensional research approach, the whole process tracing was carried out to the casting progress, material changes, climate conditions, temperature control measures, arch closure process and impounding process of Xiluodu Arch Dam construction during the construction period from multiple perspectives such as the dam and foundation modeling, construction and monitoring data analysis, heat effect during the construction period, material inverter and feedback analysis on mechanics property parameters, feedback simulation and prediction analysis on casting process, whole dam and whole process simulation and prediction analysis.
Acknowledgements This work was financially supported by the National Basic Research Program of China (973 Program 2013CB036406 and 2013CB032904), the Twelfth-five Science and Technology Support Project (2013BAB06B02) , IWHR and the Basin Water Cycle Simulation and Regulation of State Key Laboratory Special Research Foundation.
References: [1] Zhang Guoxin, Liu Youzhi, Liu Yi et al., Cause analysis and temperature control and crack prevention measures on cracks in the super-high arch dam during the construction period [J], Journal of Hydroelectric Engineering, 2010, Vol. 29, No. 5: 45-50 [2] Zhang Guoxin, Ai Yongping, Liu Youzhi et al., Investigation on temperature control and crack prevention issues for the super-high arch dam during the construction period [J], Journal of Hydroelectric Engineering, 2010, Vol.29, No. 5: 125-130 [3] Zhu Bofang.
Journal of Hydraulic Engineering, 2007, 3 (12): 34-39

Shi, Vacuum ultraviolet spectroscopic properties of rare-eart (RE) (RE = Eu, Tb, Dy, Sm, Tm)-doped K2GdZr(PO4)3 phosphate, Solid State Sciences 11 (2009) 549-555
Wang, Energy transfer between Pr3+ and Mn2+ in K2YZr(PO4)3:Pr,Mn, Materials Chemistry and Physics 127 (2011) 170-173
Sheludko, Luminescence spectroscopy and electronic structure of Eu3+- doped Bi- containing oxide compounds, Functional Materials 20 (2013) 29-36
Kaneyoshi, Luminescence of some zirconium-containing compounds under vacuum ultraviolet excitation, Journal of Luminescence 121 (2006) 102-108
Terebilenko, Electronic structures and origin of intrinsic luminescence in Bi-containing oxide crystals BiPO4, K3Bi5(PO4)6, K2Bi(PO4)(MoO4), K2Bi(PO4)(WO4) and K5Bi(MoO4)4, Journal Alloys and Compounds 614 (2014) 420-435

No differences in bone repair with regard to the different materials could be observed.
Biocompatibility of Dental Materials.
Dental materials 32 (2016) 65–72
[24] Kim HK, Woo KM, Shon WJ, Ahn JS, Cha S, Park YS, Comparison of peri-implant bone formation around injection-molded and machined surface zirconia implants in rabbit tibiae Dental Materials Journal 2015; 34(4): 508–515 [25] Suzuki, K., Aoki, K., Ohya, K., 1997.
Scientific World Journal. 2004 Dec 14;4:1083-95

Baseline concentrations of trace metals in grassland topsoils from West Jilin province, Northeast China Qingwei Zhang1, Sheli Chai2,a, Jing Cai2 and Lina Gao2 1Faculty of Earth Sciences,Jilin University,Changchun 130061,China 2Faculty of Geo-exploration Science and Technology,Jilin University,Changchun 130026,China achaisl@jlu.edu.cn Keywords: Baseline concentration,topsoils,trace metals,Multivariant analysis,West Jilin province Abstract: The objective of this study was to determine the baseline concentrations of trace elements in grassland topsoils from 155 soil sampling sites in West Jilin province, Northeast China, to establish the relationships between the trace metal contents and soil physicochemical properties and major oxide contents and among trace metal concentrations themselves, and to identify the possible sources of trace element in soils.
Material and Methods Site descriptions.
Reagent blanks, standard reference soil samples from the Center of National Standard Reference Material of China(GSS-1,GSS-10, GSS-11 and GSS-14) and internal control samples were also analyzed in order to monitor analytical accuracy and precision.The detection limits for trace elements (mg/kg) were: As 0.6,B 1,Cd 0.01,Co 0.7,Cr 3, Cu 1, Hg 0.005,Mn 4,Mo 0.1,Ni 2, Pb 2,Se 0.01and Zn 2.
The first association included As,Co,Cr,Cu, Mn,Mo,Ni,Zn,Al2O3 and Fe2O3,indicating the trace elements in this group were mainly associated with parent materials of soils such as Al oxides, Fe-Mn oxides and/or with the Al-bearing clay minerals, which implied that the trace elements were mainly derived from lithogenic and pedogenic processes and their concentrations in soils were mainly controlled by abundances of parent materials.
, J.Bech, and B.Sepulveda: Environmental Forensics, Vol.7 (2006),p.369 [12]M.Chen, L.Q.Ma, and G.H.Willie:Journal of Environment Quality,Vol.28(1999),p.1173 [13]A.Ikem, J.Campbell, I.Nyirakabibi, and J.Garth: Environ Monit Assess,Vol.140(2008), p.69 [14]S.Dudka, R.Ponce-Hernandez, and T.C.Hutchinson: Science of the Total Environment, Vol.162 (1995),p.161 [15]NEPA (National Environmental Protection Agency of China): Environmental quality standard for soils (GB 15618-1995).

Experimental Materials Graphite powder (NGP, 99.9%, 325 mesh), Zn(CH3COO)2·2H2O (99%), H2O2 (30%), sulfuric acid (H2SO4, 98%), chlorohydric acid (HCl, 36%), sodium hydroxide (NaOH) and 4-NP were purchased from Merck Company and all chemicals precursors were used as received without further purification.
However, for the ZnO nanorods with large aspect ratio, the lower direct contact of nanorods (compare to nanoparticles grown at pH of 10 to the underlying carbon sheets and the small contact area) reduces the transfer ability of photogenerated electrons to carbon materials.
We are recently shown that for the carbon materials incorporated semiconductors (eg.
Acknowledgment The authors would like to thank the Iran National Science Foundation for supporting the work.
Azimirad, Ultra-violet photodetection enhancement based on ZnO–graphene composites fabricated by sonochemical method, Journal of Sol-Gel Science and Technology 74 (2015) 499-506

Treatment Mechanisms and Operation Conditions of Arsenic Removal from Copper Smelting Effluent using Combined Process of Aeration Micro-electrolysis and Flocculation Yuqi Liu1,a, Yuebin Feng1,b, Xinying Wang1,c, Jing Wang2,d, Xiaojun Xu3,e, 1Faculty of Science, Kunming University of Science and Technology, Kunming 650500, China 2 College of Architecture and Civil Engineering , Yunnan Agricultural University, Kunming 650201, China 3 Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China) aemail:liuyuqi7547@163.com, bemail:fenjys @126.com, cemail:lwg3@163.com, demail:wj0045@163.com, eemail:xuxiaojun88@sina.com, Keywords: micro-electrolysis, flocculation, smelting effluent, arsenic removal efficiency, treatment mechanisms, operation conditions Abstract.
Materials and methods Materials.NaOH, SnCl2, KI, K2Cr2O7, (NH4) 2Fe (SO4) 2, 1,10 - phenanthroline, concentrated sulfuric acid, potassium hydrogen phthalate, diethyl dithiocarbamate silver, chloroform, triethylamine , glacial acetic acid, hydrochloric acid, nitric acid (both analytical grade).
More important, some refractory materials also could be deposited directly on the surface of copper.
Acknowledgements This work was supported by Analysis Testing Fund of Kunming University of Science and Technology(2009-111,2009-079) References [1] L.
Hu: Journal of Tianjin Polytechnic University Vol. 28(2009), p.62 [6] H.

Introduction The single crystal silicon is used as materials of the infrared lenses because the silicon has high transmissivity and refractive index to the wavelength of an infrared domain.
It has been reported in the study on machining the single crystal silicon materials with the single diamond cutting tools having large nose radius that the conditions of ductile-brittle transition could be evaluated from the cracks caused by the indentation tests [6].
Materials Science and Engneering A. 479, 1-2 (2008) 373-379 [2] W.K.
Journal of the International Societies for Precision Engineering. 29, 3 (2005) 315-323 [3] J.
Japan Society for Precision Engineering. 62, 11 (1996) 1632-1637 (in Japanese) [7] Information on http://www.allied-material.co.jp/products/diamond/cutting/upc2/ [8] Y.

The non-linear elastic-plastic theory considering the materials performance was the main task of the third stage of the study.
They are caused by the process of the material’s smelting, manufacture and operation.
For instance, this kind of failure happens when the large thin-walled pressure vessels which is not full of materials or has no materials in under the action of non-uniform vertical and horizontal loads.
In the 1990s , after studying the elastic-plastic fracture analysis method and the theory of J integration, State Science and Technology Commission (SSTCC) published the SAPV-1995 which is mainly based on the J integration theory.
Townleya: International Journal of Pressure Vessels and Piping (1975), Volume 3, Issue 2, pp. 77-107

Experimental Study on Large Turbine Hp-Valve’s Excitation Fault Caused by Steam’s Unsteady Flow and Its Economic Solution Jie Wan1,a, Junsheng Gu2,b , Guorui Ren1,c, Qian Guo2,d, Zhihua Li2,e, Jinfu Liu1,f 1 School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China 2 Hebei Guohua Dingzhou Power Generation Co．, Ltd, Dingzhou, Hebei, 073000, China awhhitwanjie@126.com, b15832273570@126.com, c254771313@qq.com, d15832273261@126.com, eguoqian2@126.com, fjinfuliu@hit.edu.cn Keywords: Large Steam Turbine, Hp-Valve, Excitation Fault, Diagonal Admission, Unsteady Flow, Economy Solution, Experimental Study.
So it does not cause resonance or forced vibration; if the the corresponding system damping of the valve structure, material and the operating system can not suppress air exciting vibration force, the valve rod-disc system may have forced vibration.
References [1] Houlei Gao, Jia Tian, Qiang Du, et al: Journal of Shandong University: Engineering Science Vol. 39 (2009), p. 106-111 (in Chinese) [2] Diansheng Zhang, Tao Chen, Yongxing Li, et al: Electric Power Technology Vol. 19 (2010), p. 15-19 (in Chinese) [3] Zhihua Gao, Zhen Ren, Wenying Huang: Proceedings of the CSEE Vol. 25 (2005), p. 88-92 (in Chinese) [4] Jizhen Liu: Proceedings of the CSEE Vol. 33 (2013), p. 1-8 (in Chinese) [5] Lin Gao, Yiping Dai, Zhiqiang Wang, et al: Proceedings of the CSEE Vol. 28 (2008), p. 84-89 (in Chinese) [6] Daren Yu, Zhansheng Liu, Qiang Li, et al: Journal of Power Engineering Vol. 27 (2007), p. 1-5 (in Chinese) [7] Xiukun Zhang, Mingdong Jiang, Shengbo Su, et al: Energy Conservation Technology Vol. 23 (2005), p. 87-90 (in Chinese) [8] Fei Jiang, Jianguo Sun: Energy Conservation Technology Vol. 29 (2011), p. 437-441 (in Chinese) [9] XueXia Lv, Zhaozhong Li, et al: Energy Conservation Technology Vol. 30 (2012), p. 258-261 (in Chinese)
[10] Chongming Song, Jiao Liu, et al: Energy Conservation Technology Vol. 30 (2012), p. 527-531 (in Chinese) [11] Yufeng Guo, Zhiqiang Xu, Daren Yu: Turbine control principle (China Machine Press, Beijing 2010) (in Chinese) [12] Haiping Guan, Xiaoliang Jiao, et al: Energy Conservation Technology Vol. 29 (2011), p. 57-60 (in Chinese) [13] Zhiqiang Xu, Yingdong Song, et al: Turbinete Chnology Vol. 50 (2008), p. 374-377 (in Chinese) [14] Daren Yu, Yanfeng Duan, Jinfu Liu, Zhansheng Liu, Qinghua Hu: ASME Journal of Engineering for Gas Turbines and Power Vol. 132 (2010), p. 1-4 [15] Shan Tu, Bi Sun, Jingru Mao: Power Engineering Vol. 24 (2004), p. 729-731 (in Chinese) [16] Jian Hu, Bao Zhang: Zhejiang Electric Power Vol. 3 (2009), p. 45-47 (in Chinese) [17] Haiying Li: Petro-chemical Equipment Technology Vol. 30 (2009), p. 43-46 (in Chinese) [18] Shan Tu, Jingru Mao, Bi Sun: Fluid Machinery Vol. 28 (2000), p. 30-32 (in Chinese) [19] Shusan Wu, Jue Wang: Fluid induced vibration (China
Machine Press, Beijing 1983) (in Chinese) [20] Jingru Mao, Shan Tu, et al: Journal of Engineering Thermophysics Vol. 11 (2002), p. 687-690 (in Chinese)

Practical applications of these materials are therefore limited.
Dou, Recent progress in thermoelectric materials, Chin.
Shubha, Oxide thermoelectric materials: A structure-property relationship, Journal of Elec.
Kaner, Nanostructured materials for thermoelectric applications, Chem.
Kanatzidis, New and old concepts in thermoelectric materials, Angew.