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Online since: March 2026
Authors: Petrus Nzerem, Chizoma Nwakego Adewumi, Adekule Adeleke, Nuhu Lawal, Waliyi Adeleke, Frank Ogundolie, Seun Jesuloluwa
Experimental Procedure The materials used in this study include eggshell and silica, both sourced from the Abuja metropolis, Nigeria.
The resulting weight loss as temperature increased was tracked to understand the decomposition behavior and thermal resistance of the materials.
From this result, both materials possess mesoporous characteristics, with pore diameters within the 2–50 nm range.
Wibowo, Science and Technology Indonesia
Victor, “Chemical Modification and Characterization of Starches from Soursop as Po- tential Water-Based Drilling Fluid Additives Journal of Petroleum Science and Technology Chemical Modification and Characterization of Starches from Soursop as Po - tential Water-B,” no.
Online since: July 2011
Authors: Zhong Sheng Bai
Journal of China Coal Science and Engineering (China), Vol.23(3):p262.
Advanced Material Research, Vol. 2011(156), p.225
Zhang.Study on the character of strata subsidence during repeat mining.Journal of China Coal Science and Engineering (China), Vol. 23(5), p470.
Coal Science and Technology, Vol.2009(11),p.65.
Online since: December 2010
Authors: Yong Feng Du, Ping Tan, Fu Lin Zhou, Wei Ming Yan, Yan Hui Liu
Therefore, the piezoelectric material is used to friction damper to improve the performance of friction dampers and form the smart friction damper, which becomes the hot research topic in the field of structure vibration control [2,3].
Acknowledgements This research is supported by Natural Science Foundation of China under Major Program No. 90815027 and Program No. 51008009.
Earthquake Engineering and Engineering Vibration, Vol. 20(2000), p. 81 [2] Li H.N., Li J., Song G.B.: Journal of Building Structures, Vol. 26(2005), p. 1 [3] Ou J.P.: Structure vibration control-----active, semi-active and smart control, (Science press, Beijing 2003) [4] Qu W.L., Chen C.J., Xu Y.L: Earthquake Engineering and Engineering Vibration, Vol. 20(2000), p. 94 [5] Ou J.P., Yang Y.: Earthquake Engineering and Engineering Vibration, Vol. 23(2003), p. 171 [6] Li H.N.: Multidimensional seismic control of structure (Science press, Beijing 2008) [7] Zhang Y.B.: Journal of Vibration and Shock, Vol. 27(2008), p.142 [8] CHEN G.
Online since: January 2014
Authors: Hai Yan Wang, Mei Zhen Chen, Guo Fa Liu
Simulating the actual fire by abandoned tunnel requires a lot of manpower, material resources, and it will cause unnecessary damage to property.
Acknowledgment We kindly acknowledge financial support by the national science foundation of China Program (No. 51304211).
Combustion Science and Technology. 1983(35)
Fire Safety Journal, 1996. 26: 35-62
Journal of University of Science and Technology of China, 1990.18(4):459-465.
Online since: December 2012
Authors: Zi Yun Xue
An Introduction to Parallel Robot Mechanism Ziyun Xue School of Material and Mechanical Engineering, Beijing Technology and Business University, Beijing,102488, xuezy@th.btbu.edu.cn Key Words:parallel mechanism; parallel manipulator; kinematics Abstract: With the dual relationship between parallel mechanism and serial mechanism on the structure and performance characteristics, the emergence of parallel mechanism, expand the areas of application of the robot.
I believe, in the near future, the parallel robot mechanism will be in our lives and play an increasing part role. 5 Acknowledgements This work was financially supported by the Beijing Technology and Business University Natural Science Youth Foundation (QNJJ2012-36).
References [1] K.H.Hunt.Structural Kinematics of In-Parallel-Actuated-Robot-Arms,ASME Journal of Mechanical Design, 1983,105(4):705-712 [2] Qinchuan Li.
Method of successive approximation for the forward displacement analysis of parallel manipulators,Journal of Tianjin university,2000,33(2):134-137[In Chinese] [8] Joshi S,Tsai L W,A comparison study of two 3-DOF parallel manipulators:one with three and the other with four supporting legs,IEEE Transactions on Robotics and Automation,2003,19(2):200-209 [9] Tsai M S,Shiau T N,Tsai Y J,et al,Direct kinematic analysis of a 3-PRS parallel mechanism,Mechanism and Machine Theory,2003,38(1):71-83 [10] Jo D Y , Haug E J.
China Science(E). 1998,28(2):136-145[In Chinese] [13] K.
Online since: August 2014
Authors: Xiong Bo Zheng, Yu Nong Yang, Peng Xie
Research on the Performance of Point Absorber ZHENG Xiongbo1, a, YANG Yunong2, b, XIE Peng1, c 1 College of Science, Harbin Engineering University, Harbin 150001, China 2 College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China a zhengxiongbo@hrbeu.edu.cn, b yangyunonghrbeu@163.com, c 184022655@qq.com Keywords: point absorber; wave energy ; numerical calculation;renewable energy Abstract.
The change of the value of can be realized by changing the density and thickness of the material or installing additional weight in the floater and the pontoon.
China Science and Technology Achievements, 2007,16(3):18-20
Journal of Harbin Engineering University, 2010, 31(8): 1023-1028
International Journal of Engineering Science, 2005,43:1377-1387 [9] Ching-Yun Yueh, Shih-Hsuan Chuang.
Online since: January 2018
Authors: Aries Sulisetyono, Eddy Setyo, Lalu Muhammad Jaelani
Figure 7 show the concept design of a floating vertical axis turbine in which the specification of turbine are including of blade number 5, type NACA 0021, span (height) 3.5 m, chord 16 cm, maximum thickness 3.36 cm, turbine diameter 6 m, shaft diameter 30 cm, and material aluminium.
Sulisetyono, Estimation of TSS and Chl-a concentration from landsat 8-OLI: The effect of atmosphere and retrieval algorithm”, IPTEK, The Journal for Technology and Science Vol. 27, No. 1, April 2016
Kukinul Siswanto, Poteran carrying capacity for small island development, CITIES 2015 International Conference, Intelligent Planning Towards Smart Cities, CITIES 2015, 3-4 November 2015, Surabaya Indonesia, Procedia - Social and Behavioral Sciences 227 (2016) 761-769
Sulisetyono, Erwandi, Lateral force fluctuation on the shaft of vertical-axis ocean current turbine, Australian Journal of Basic and Applied Sciences (2011) 121-125.
Online since: August 2012
Authors: Yan Zhu, Wen Qiu Li, Xiao Zhen Li
The fourth and the fifth piers are rigid (see Fig. 1).The material of deck is C55 concrete, and piers are made of C40 concrete.
Acknowledgements This study is supported by the National Natural Science Foundation of China (Grant No.50678150,51008250), Program for New Century Excellent Talents in University (Grant No.NCET- 10-0701), 863 National Research Programs 2011AA11A103), Specialized Research Fund for the Doctoral Program of Higher Education 0110184110020), Science Fund for Distinguished Young Scholars of SiChuan Provience (Grant No.2010JQ0018), Applicable Basic Research Program of Sichuan Province(Grant No.2010JY0026),Fundamental Research Funds for the Central Universities(Grant No.SWJTU11CX148, SWJTU12CX062) and Program for Yanghua Star of SWJTU.
S: State of the art review and trend of studies on vehicle bridge interaction,Journal of The China Railway Society. 05 (2002)
S: Coupling vibration analysis of vehicle-bridge system by iterative solution method,Journal of Vibration and Shock 03(2002)
[5] Test Report of 200km/h electromotion trains on round line and Guang-Shen Railway.Beijing, China Academy of Railway Sciences(2000).
Online since: September 2013
Authors: Rui Wu, Jian Yong Li, Wei Jie Guo, Ai Mei Yang
Chemical Constituents of Saxifraga umbellulata AiMei Yang1,2,a, Rui Wu1,b, JianYong Li1,c, WeiJie Guo1,d 1College of Life and Engineering, Lanzhou University of Technology, Lanzhou, 730050, People’s Republic of China, fax number: 86-931-2973924 2Institute of Lanzhou Animal Science and Veterinary Pharmaceutics, Chinese Academy of Agricultural Sciences, Gansu Lanzhou 730050, People’s Republic of China aE-mail: aimeiyang@163. com, bE-mail: 499495817@qq. com, cE-mail: lijy1971@163. com, dE-mail: 306568324@qq. com Keywords: Saxifraga umbellulata, Chemical constitutes, Extraction and separation Abstract: Five compounds were isolated from the EtOAc extract of Saxifraga umbellulata.
Plant material The fresh air-dried plants of Saxifraga umbellulata were collected from Xining city, Qinghai province of China in September 2009, China, and identified by Professor Guoliang Zhang of Lanzhou University.
Acknowledgements This research was supported by the Open Fund of Key Laboratory of New Animal Drug Project, Gansu Province / Key Laboratory on New Veterinary Drugs of Ministry of Agriculture, Chinese Academy of Agricultural Sciences, Ministry of Agriculture.
Shu: Chinese Journal of Marine Drugs [in Chinese].
Pei: Journal of Shenyang Pharmaceutical University [in Chinese].
Online since: October 2012
Authors: Jun Wang, Xian Jun Ji, Guo Qiang Ou, Shun Yang
As same as, to the rock mass, which with well constitutive property and higher strength, which can be treated as the mixture composed of mineral crystal particles and cement material among crystal particles.
Conclusion 1) The first time of impact force to the monitor wall is same basically, but there is some difference since the difference of the bond strength. 2) The starting time of continue impacting to the monitor wall is delayed with the increating of the bond strength, but which is bring forward when the bond strength over 103kPa. 3) The max impact force increases with the bond strength increasing.The landslip-collapse soil impact to the monitor wall as a whole sliding block when the bond strength is higher and the impact force add up to the max instantly; The landslip-collapse soil impact to the monitor wall as a viscous fluid when the bond strength is smaller Acknowledgements This article was financially supported by the National Natural Science Funds (No.40830742, No.50979103) Reference [1].
Journal of Engineering Geolo-gy, 2008, 16(4): 433-444. ( in Chinese) [3].
Journal of Northeastern University(Natural Science) .1989, 10(4): 349―354. ( in Chineses) [4].
Science Press, 1994,286-287.