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The dilatancy angle is normally used in cohesionless materials and is dependent on the relative density and friction angle ofthe soil.
Acknowledgements This paper is the partial result of a research project sponsored by the soft science research project of the Ministry of Housing and Urban-Rural Development of the People’s Republic of China (MOHURD).The project NO. 2011-K3-32.
Journal of Geotechnical Engineering [J].

In conclusion, it can save large number of manpower, material and financial resources, as well as time.
Furthermore, it is suitable for solid-liquid mixing in that the solid material is easy to suspend and difficult to deposit.
Qing-ru, "Study of theory of efficient coal slurry conditioning and its application," Journal of China University of Mining & Technology, vol. 41, pp. 315-319, 2012
[4] Ding Zhaoyang, Zhang Zhi, and Teng Tingting, "Micro-fine coal separation characteristics and advances of its flotation technology," Shandong Coal Science and Technology, pp. 65-66, 2008

Experiment Experimental materials (1) 100% polyester fabric (2) Far-infrared polyester fiber (mixed with 6% of far-infrared mineral powder) (3) 100% cotton fiber (4) C6H9O2H3‧H2O 98% molecular 209.64  (5) NaOH: 93% Molecular 40 (6) NaCl: 99.9%Molecular 58.44  (7) NaH2PO4‧2H2O: 98% Experimental apparatus (1) Thermo-hygrometer (2) Far-infrared radiation instrument (EMS 302M) Emission limits of the measurement of 5-14 μm (3) Electric scale (accuracy of up to 0.001g) (4) Micro-dropper (100 – 1000 μm) Experimental conditions (1) Blackbody test area 28.27cm ² (2) Blackbody test volume 141.37cm ³ (3) Blackbody test temperature: 34℃ (4) Environment temperature 21-26 , relative humidity 53 ± 2% Experimental procedures (1) Production of samples Cut several pieces of the far-infrared fabric By area 28.27cm ² , and stitched together two pieces of cotton fabric.
(2) Far-infrared fabric after trickle artificial sweat, as sweat in the water slowly increased to the radiation rate stable value, when the sweat evaporates, radiation rate will slowly rise to the original emissivity Acknowledgements The authors would like to thank the National Science Council for the financial support in this project Reference [1] Taiwan Textile Research institute, Specified Requirements of Far Infrared Textiles, FTTS-FA-010(2007) [2] K.
Zeng, Far-infrared Fiber Weight and Type of Radiation Rate on The Stability of Measurement of Research, Journal of the Hwa Gang Textile Vo.15 No.3(2008) [3] P.

Lower Beam of the Heavy Isothermal Forging Hydraulic Press Compare between Rigidity Test and Simulated Result Han Wenjia1,2,a, Bi Dasen1,3,b, Li Sen3, Guan Yabin3,Yang Guang2,c 1 Tianjin University of Technology, Tianjin 300384, China 2Key Laboratory of Display Materials & Photoelectric Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China 3Tianjin Tianduan Press Ltd.300242, China a1123739455@qq.com, btjbds@sina.com, c clxyyg@163.com Keywords: Hydraulic press; Rigidity test; Laser tracker; Finite element analysis; Nonlinear fitting Abstract: Hydraulic press occur elastic deformations in the working status.
Acknowledgements This work was financially supported by the Project of Tianjin Science and Technology Support (13ZCZDGX01600) and Young Teacher’s Seeding Fund of Tianjin University of Technology（LGYM201231）.
Journal of mechanical design and research, 2010, 26 (1) : 108-110.

Defects Detection of Sheet Metal Parts Based on HALCON and Region Morphology Baoan Hana, Huiyu Xiangb, Zhe Li, Jiajun Huang (Materials and Mechanical Engineering College, Beijing Technology and Business University, Beijing 100037, China) ahanbaoan_lw@126.com,bxianghy@th.btbu.edu.cn Key words: HALCON; Morphology; Sheet metal part; Defects detection Abstract.
Mathematical Morphology Mathematical morphology is a method to analyze the geometrical shape and structure [1], and a science of quantitatively describing geometric structure based on the set algebra, using set theory method.
Chinese Journal of Computers, 2003.26(3):353-360

Remnev, Carbon saturation of silicon target under the action of pulsed high-intensity ion beam, IOP Conference Series: Materials Science and Engineering, 110 (2016) 012054
Swain, Ionization of a Background Gas by a Weak (ν/γ1) Relativistic Electron Beam, Journal of Applied Physics, 43 (1972) 396-405

Sound Radiation Analysis of Thin Plate Using FEM and BEM Method Shanbao Pei1,2,a, Rongzhong Liu 1,b 1School of Mechanical Engineering, Nanjing University of science and Technology, Nanjing, Jiangsu, 210094, China 2School of Mechanical Engineering, Anhui University of Technology, Ma’anshan, 243002, China ashanbaopei@163.com, bliurongz@mail.njust.edu.cn Keywords: Sound radiation; Thin plate; Sound Power Abstract: The relationship between the sound power and the stimulated frequency of thin plate is analyzed, and the influence from frequency is also introduced.
In the process of solving, the solution of all matrix is only related with the geometric shape and stimulated frequency of structure, therefore impedance matrix is related to the geometric shape and stimulated frequency of structure, is unrelated with the material properties, boundary conditions and stimulated source position.
The sensitivity of the impedance matrix is zero when the sensitivity of structure material characteristic and the sensitivity of structure boundary condition are analyzed.
References [1] Currey M N, Cunefare K A, Johnson M E, The Radiation Efficiency Grouping of Free-space Acoustic Radiation Modes, Journal of the Acoustical Society of America, 2001, 109(1): 203-215

Diankui Liu, Zailiang Li (1996): Wave in Solid (Science Press, Beijing, China1996) (in Chinese)
Zailin Yang, Diankui Liu, Xiaotang Lv(2006): Key Engineering Materials.
Yan Wang, Diankui Liu (2002): Journal of Harbin Engineering University. 23(6) (2002), p.43-47.

There is therefore the need for the development of methods to estimate the in-situ strength of the concrete in the structure, which take into account the quality of materials and mix proportions, curing and quality of workmanship.
By considering various concrete mix designs and various sizes of aggregates, families of correlation curves may also be obtained for 7days, 14days, 21days and 28days strength of concrete to enable quick determination of in-situ strength of concrete materials.
Shar, 'Monitoring the setting and hardening of cment-based materials with ultrasound", Concrete Science and Engineering 1 (2) (1999) pp83- 91
ACI Material Journal 97 (6) (2000) 675-683 [9] T.
Akkaya, "Nondestructive measurement of concrete strength gain by an ultrasonic wave reflection method", Materials and Structurea, 2003, I T I North Western edu.

Introduction Friction Stir Welding (FSW) is a recent method of joining materials, patented by the welding institute (TWI) in 1991.
Because melting is avoided, FSW also has potential for bonding many materials that are difficult or impossible to weld by more conventional methods, including alloys that are susceptible to solidification cracking, high-strength steels, metal-matrix composites, and other advanced alloys.
Evangelista, TEM analysis of a friction stir-welded butt joint of Al-Si- Mg alloys, Materials Chemistry and Physics 81 (2003) 289-292
Ma, Friction stir welding and processing, Materials Science and Engineering R 50 (2005) 1-78 [4] I.
MILLER, Effect of Friction Stir Welding on Dynamic Properties of AA2024-T3 and AA7075-T7351, Research Suplement, Welding Journal, August 2001, 196-s - 200-s.