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Online since: September 2013
Authors: Jin Li, Chu Fu Li
Box 001 Shenhua NICE, Future Science & Technology City, Changping District, Beijing 102209, P.
CO2 Emissions Features Analysis in the Coal-Based Synfuels System Coal is a material with lower H/C atom ratio (about 0.8), but coal-based synfuels are the products with higher H/C atom ratio (> 2.0) (Table 1).
However, in the S-I or HyS cycle, sulphuric acid has serious corrosiveness at high temperature, as a results, the system faces lots of challenges in devices and materials.
Journal of Nuclear and Radiochemistry, 33(2011), p.194(In Chinese) [8] S.
Online since: June 2014
Authors: Vo Nguyen Phu Huan, Indra Sati Hamonangan Harahap
The grid based numerical methods have achieved remarkably, and they are currently the dominant methods in numerical simulations for solving practical problems in engineering and science.
Summary of grid-based method Lagrangian grid Eulerian grid ü Attached on the material ü Does not deal with large deformations (remesh) ü History of all the variables can be easily obtained ü Used by FEM ü Fixed in space and with time ü Not easy to treat the irregular or complicated geometries ü Difficult to tract moving boundary and interface ü Used by FDM, FVM However, the major difficulties are resulted from the use of grid/mesh, which can lead to various difficulties in dealing with problems with free surface, deformable boundary, moving interface, and extremely large deformation and crack propagation.
The state of the system is represented by a set of particles, which possess individual material properties and move according to the governing equations.
Particle approximation diagram (Shao, 2009) By deploying particles at specific positions at the initial stage before the analysis, the free surfaces, material interfaces, and moving boundaries can all be traced naturally in the process of simulation regardless the complicity of the movement of the particles.
Eagerb, “Adaptive data parallel computing on workstation clusters”, Journal of parallel and distributed computing 64, 1241 – 1255, 2004
Online since: June 2014
Authors: Ling Zhi Cui, Gao Min Li, Yi Ting He, Qin Liao, Fei Luo
The Dynamic Parameters The soil is regarded as viscoelastic material when doing dynamic response analysis of the foundation, the natural soil slope and the soil structure.
Journal of Geotechnical Engineering Division , 1978 , 104 (4) :463~480
The application of shallow seismic methods to mapping of frozen surficial materials, North American Contribution to the Second International conference on permafrost, Yakutsk, U.S.S.R., National Academy of Science, Washington, pp.527-535
Online since: July 2014
Authors: Hai Zhan Li
The main raw material is limestone aggregate and SBSI-D modified asphalt.
Production mix design According to the target mix design, the cold material feeding speed and speed ratio.
Mixture paved by machine should not be repeated artificial dressing except that local shortage of material; obvious roughness of surface; the local mixture segregation, obvious drag marks caused by paver.
References [1] YUAN Yu-qin, GAO Dan-yin,WANG Xuan-cang, ZHOU Xin: The Anti-Cracking Mechanism of SBS Modified Asphalt Stress Absorbing Layer and The Effectiveness Analysis, Journal of Wuhan University of Technology, (2010),5(34):969-977
[5] ZHENG Jun-jie, Yang Yan: The First Application of STRATA Stress Absorbing Layer in China[J], Highway traffic science and technology,(2003),20(3):19-22.
Online since: December 2013
Authors: Chen Chen Zhang
Establishing this kind of values needs certain time and conditions, such as sufficient material wealth, the higher education level of public, etc.
When the industrial society gradually enriches the material life of people, people pursuit of material will transfer to their concern on the problems of the nonphysical.
China soft science (1998), (9)
Journal of Beijing Normal University (2005), (4).
Online since: January 2013
Authors: Shan Gang Wang, Hu Dai Fu, Wei Yang
The first layer frame rod unit and beam on the upper derrick have greater stress, closing to the yield strength of the material.
Seeing that it has material waste in the original design.
It can be easily to make optimal design for the derrick back inclined support, dangerous section and material selection, in accordance with the derrick stress distribution.
Journal of Qingdao Agricultural University (Natural Science). 2009. 26 (1) : 49~51
Online since: July 2014
Authors: Chao Chen, De Qing Gan, Chao Qun Yu, Ai Dong Song, Sen Wang, Hong Jian Lu, Wei Hang Zhang
Ratio of the sample.After the screening test material is a mixture of different size stones, the total number of stone 1000kg.
Simulation program.Analog scraper shovels in the model 30m, 40m, 50m elevation backfill material simulation test.
Fig.1 Test model Table 1 Size ratio of material No.
Acknowledgements This work was financially supported by Hebei Province Natural Science Foundation (E2013209328), and funded by Hebei Iron and Steel Group Mining Co.
Mine dump Rolling movement of its disaster prevention [J], Chinese Journal of Geological Hazard and Control, 1998,9 (S) :127-135.
Online since: January 2024
Authors: Minh Tuan Pham, Phuc Khanh Nguyen, Hai Nhan Le
In this work, the material for the compliant bearing is Aluminum alloy 6061 – T6.
All the properties of the material are listed in Table 1.
FEA Results With the model in figure 1 and properties of the material in Table III, the rear of the bearing is fixed then unit loads (F = 1N) and unit moment (M=1N.m) are applied to the end effector in three translational directions (∆X, ∆Y, ∆Z) and three directions (θX, θY, θZ) respectively.
IEEE Sensors Journal 15, pp. 2419–2430 (2015)
Advances in Asian Mechanism and Machine Science, pp. 246-257 (2022)
Online since: July 2011
Authors: Chin Yow Lin, Ya Lan Hsing, Wen Hao Hsing
General visible light with the same five basic characteristics: radiation, direct nature, reflective, refractive, and penetrating, and far infrared itself with the Sixth characteristics: resonance absorption; when the far-infrared wavelength of the oscillation frequency and the material The same frequency, will produce resonance absorption, the absorption of energy will enhance the molecular vibration and friction heat, the so-called thermal effect [2,3].
Experiment Materials (1)Far infrared polyester knitting fabric: S7516 68-inch width of fabric weight 230g / (Lealea Group Co.) 3-2 Equipment (1)Thermometer (Lutron TM-925) (2)Hygrometer (Lutron HT-3015) (3)Far-infrared radiation apparatus, (HOTECH EMS302M), (radiation measurement range 5-14μm) (4)International standard fluorescent lamp (D-65 Artificial Daylight Philips 20W/840) (5)High-performance fluorescent lamp(TL-84 Warm White Fluorescent PHILIPS MCFE 20W/840) (6)Incandescent lamp (F 40W/240V) (7)UV light (Wavelength: 365nm) 3-3 Experimental conditions (1)Testing an area of black body cavity 28.27cm ² (2)Test blackbody cavity volume 141.37cm ³ (3)15-20 minute warm-up test equipment (4)Test blackbody cavity temperature: 34 ℃ (5)The use of far infrared radiation meter temperature: 20 ~ 25 ℃ Results and discussion Irradiation by D-65 Far-infrared polyester fabrics in the D-65 light irradiation 20,40,60 minutes of far infrared radiation rate, far infrared polyester fabric
Acknowledgements The authors would like to thank the National Science Council for the financial support in this project References [1] Xutian Fei, and their assessment of the effectiveness of far-infrared method, dyeing magazine, the first 50 , (1997) 59-63 [2] Li Mo and Huang Ke Nong, Wang Jinsong, ROADS, basic characteristics and far-infrared-induced physiological response of majority of the bridge, seventh, (2000) 60 ~ 62 [3] Chen, please, on the far-infrared applications in biotechnology, Mechatronics Magazine , (2002) 134-154 [4] Far-infrared textile authentication standard, Textile Research Institute, FTTS-FA-010 (2007) [5] Has Kai-dimensional, far infrared fiber weight and the type of radiation rate on the stability of the measurement study, Hanaoka textile journal, the first five volumes, III (2008) [6] WU Pei instrument, far infrared polyester fabric in different relative humidity and moisture content under different rate of radiation (2008) [7] Guang Fu High Nakajima
Online since: October 2010
Authors: Jun Mao, Jian Gang Li, Wei Kang Li
In 2003, Qu Juan and Li Huai discussed ladder-type tooth chain connector from the angle of materials and process measures.
, TOOTH 1 receiving the stress is bigger than TOOTH 2. 2) The static test results indicated: Under certain load function, stress of TOOTH 2 are biggest, but the stresses between teeth will redistribute along with the load increasing; The fatigue test results indicated: In the situation of certain experiment strength and the fatigue times, the tooth department presents the crack first, and has the break along with the fatigue times increasing; The experimental result and the finite element analysis results tallies. 3) The cambered surface tooth profile may increase contacting areas, and further as a result of middle symmetrical surface, may guarantee to alignment when two half-ring teeth part mesh with, thus avoids partial loading. 4) when the cambered surface tooth structure of the chain connector processes, not only considered certain cambered surface tooth profile is guaranteed, but also the batch processing, therefore in the chain connector jig design, the jig clamps the rough material
Coal Science and Technology.
Journal of Liaoning Technical University. vol.23(1), p. 101-103.( 2004), ( In Chinese) [5] brithsh coal corporation. monitoring and prdiction of thelife of mining chain assemblies. brithsh coal corporation.
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