Search results

Application of R/S rheometer in low temperature drilling fluid rheology determination Jiang Xiaoling a, Lei Zongming b ,Wei Kaic Chongqing University of Science & Technology , Chongqing 401331, China a cqustjiangxiaoling@126.com, bcqustlzm@163.com, ccqustwk@126.com Keywords: R/S Rheometer; Low temperature drilling fluid; Determination of rheological properties; Rheological parameters Abstract: With six-speed rotary viscometer measuring the rheology of drilling fluid at low temperature, during the high-speed process, the drilling fluid temperature is not constant at low temperature, which leads to the inaccuracy in rheological measurement.
R/S Rheometer The R/S rheometer is American Brookfield company produces concentric cylinder rheometer.The R/S rheometer test Newtonian viscosity, Also can measure the non Newtonian fluid viscosity function at a constant shear rate.At the same time, R/S rheometer can also be measured material rheological properties under different shear rate,The R/S rheometer using motor has high power precision,And the use of no gear and mechanical power sensing device optical decoder,accordingly, can be done without error control torque.The R/S rheometer can be stand-alone operation, can also be controlled by computer.The R/S rheometer can be used to measure the fluid shear thinning, thixotropy, the influence of the temperature.
[3]Wang Youhua,Wu Bin,Xu Shaocheng.Rheological study on water-base drilling fluids at low temperature[J].Journal of Oil and Gas Technology，2005，27（4）：640-641

Organization of the Text Coupled vibration model of Hydropower stations unit and hydropower house structure Table 1 Unit types of finite element model Solid73 Shell63 Beam188 link8 Mass21 The column on generator layer and below the floor level Slenderness is smaller, machine pier, volute Wall in factory building , floor, the column above floor on generator layer(larger slenderness), Floor beam, Ring beam, Roof beam The quality of roof floor, The quality of the generator, the quality of the Water Turbine Table 2 Modeling design parameters Unit Rated speed （） Total weight of the rotor （kg） Total weight of the Wheel （kg） Elastic modulus （） Poisson's ratio Material bulk density （） Shaft diameter （） Shaft length （） 125 3.2×105 2.7×105 2.1×1011 0.3 7.8×104 0.9 13.66 This paragraph chooses one hydropower station unit factory building structure to conduct finite element computation.
Acknowledgements This work was financially supported by the Science Research Project of Inner Mongolia University of Technology (X200606) References [1] Xiaoming Yang and Zhenyue Ma.Journal of Vibration Engineering(2004).

Basic data employed in the numerical study are as follows: the material density is , the elasticity module is , the Poisson ratio is 0.3, the dynamical friction coefficient is 0.15 and the bolt pretightening displacement is 0.5mm, the direction of which goes along the bolt shank.
Acknowledgement This research is supported by the National Natural Science Foundation of China and the China Academy of Engineering Physics under the Grant No.10176024 and No.2010K01-073.
Journal of Wind Engineering and Industrial Aerodynamics. 2001, 89: 785-807.

Jauregui: Smart Material Structure, Vol.7, issue 5, 704-719, 1998
Shi: Journal of Tongji University, Vol.27, NO.2, 165-169, 1999 (In Chinese)
Wu, “Graph Theory and its Algorithm”, China Science and Technology University Press, 2003 (In Chinese)

Material and methods Chemicals The penicillin antibiotics standards including Phenoxymethyl penicillin, Dicloxacillin, Cloxacillin, Amoxicillin, Ampicillin.All standards (purity≥99%) were purchased from sigma-aldrich, USA.
[2] Hygienic Standard for Cosmetics (2007), Military medical science press, Beijing,China.
[5] Zengxuan Cai, Yu Zhang, Hongfeng Pan, Xiaowei Tie, Yiping Ren.Simultaneous determination of 24 sulfonamide residues in meat byultra-performance liquid chromatography tandem mass spectrometry.Journal of Chromatography A. 1200 (2008) 144-155

Solving Multiple Routes Travelling Salesman Problem using Modified Genetic Algorithm Muhammad Ridwan Andi Purnomo1,a, Mohammad Iqbal2,b, Mila Faila Sufa3,c 1Department of Industrial Engineering, Faculty of Industrial Technology, Universitas Islam Indonesia, Indonesia 2Department of Manufacturing and Material Engineering, Faculty of Engineering International Islamic University of Malaysia, Malaysia 3Department of Industrial Engineering, Faculty of Engineering Universitas Muhammadiyah Surakarta, Indonesia aridwan_ie@uii.ac.id, bmohammad_iqbal@iium.edu.my, cmfsisonline@gmail.com Keywords: multiple routes, TSP, modified GA, heuristic crossover, heuristic mutation.
International Journal of Production Research, 36 (1998) 1325-1337
Tsinghua Science and Technology, 12 (2007) 459-465

It is conducive to deal with waste, protect the environment, to solve a lot of waste material handling problems.
Natural Science Funds of Inner Mongolia (NO. 2009MS0711) [4] TIAN Shu-jun; ZHANG Hong.
Journal of System Simulation,2006,(5)

General Situation of Model Experiments on NSF Literature Material of Pile Loading Method of Soil (Max.
Acknowledgements This work was financially supported by the Fundamental Research Funds for the Central Universities (No. 2013B03214), the Natural Science Foundation of Jiangsu province (No.
Vincent, et.al: Journal of Geotechnical and Geoenvironmental Engineering, Vol.134 (2008), p.1245-1260

Authors were with the third batch of the team. 1.2 Research method 1.2.1 Literature review Literature review covers a wide reference to relevant materials, understanding and analysis on post-disaster reconstruction planning and policy-making, experience, case studies, and existing theory systems from both home and abroad. 1.2.2 Investigation (1) Key investigation spots: the third batch of investigation team selected the following places as key investigation spots: three worst-hit counties including Wenchuan, Beichuan, and Dujiangyan , which in total covers 15 towns and 25 residents placement areas
It covers how members of society obtain, from government, society and market, the opportunities and resources for survival and development, and thus support their material and spiritual life.
Tel: 13618069729;E-mail：heminfata@sina.com Bo Zhou: male; born in Chongqin, Assistant Dean in College of Architecture & Environment, Sichuan University; professor; doctoral supervisor of Residential Environment Science Address: College of Architecture & Environment, Sichuan University No.24, Nanyiduan, Yihuan Road Chengdu, Sichuan, China 610065 7 Reference [1] HUANG Runqiu, LI Weile.
Chinese Journal of Rock Mechanics and Engineering, 2008, 27(12): 2585-2592
Journal of Southwest University for Nationalities, 2009 (7): 240

As a consequence materials are subjected to more frequent failures due to more severe stresses.
The most used and nowadays the most indicated for fatigue stress application are materials with metallic matrix.
The principal mechanical characteristics of the materials are shows in Table 3, together with the hardness values at the surface and at the bulk material.
Tordini: Key Engineering Materials, Vols. 348-349 (2007), pp. 313-316
Endo,: International Journal of Fatigue, Vol. 16 (1994) pp 519-533