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High strength steels with fine grains possess good weldability and plastic deformability, and thus they are promising engineering materials for the future.
Hrynus, Optimization of welding modes for high-strength low-alloy Domex 700 steel, Ukrainian Journal of Mechanical Engineering and Materials Science, Vol. 3, No. 2, 2017, pp. 47-54
Lisiecki, Welding of thermomechanically rolled steel by Yb:Yag disk laser, Archives of metallurgy and materials, Vol. 60, 2015, pp. 2851-2859
Materials Science Forum, vol. 500–501, Trans Tech Publications, Ltd., Nov. 2005, pp. 387–394.
Hrynus, "Optimization of Welding Modes for High-Strength Low-Alloy Domex 700 Steel", Ukrainian Journal of Mechanical Engineering and Materials Science, vol. 3, no. 2, pp. 47-54, 2017.

Introduction In recent years, with the development of LED, the light conversion materials have become a research hotspot [1-9].
Eu3+ is widely used in red light-emitting materials because of its red radiation transition 5D0→7F2 [1-8],so the study of its red light-emitting properties in phosphate host has important significance.
The applied experimental materials were analytically pure BaCO3,(MgCO3)4•Mg(OH)2•5H2O,NH4H2PO4,Li2CO3,Na2CO3,K2CO3 and Eu2O3 (purity : 99.99%).
References [1]ZHAI Yongqing,FENG Shihua,ZHANG Zhang,et al: Rare Metal Materials and Engineering (In Chinese),vol.39(2010),p.1825-1828
:Journal of Inorganic Materials (In Chinese), vol.25(2010),p.1015-1019

They are commonly polymeric materials and its role is to improve green body strength by forming a bridge between the particles during alumina forming [3].
Materials and Methods Materials and Sample Preparation.
Thompson: Materials Letters, 53 (2002) 262-267
Bouaziz, Materials Characterization, 62 (2011) 912-916
Sumi: Journal of Polymer Science Part A-l, 7 (1969) 3151-3158

Materials and Methods The material used in this investigation was 30CrMnSiNi2A steel with the following chemical composition: 0.26~0.34 C, 0.9~1.2 Si, 1.0~1.3 Mn, 0.015 S, 0.025 P, 1.4~1.8 Ni, 0.9~1.2 Cr, 0.25 Cu, 0.20 W, 0.15 Mo and the rest Fe (wt %).
The maximum tensile stress would move from material surface into material interior, thus the fatigue cracks would produce in a certain tensile stress area under residual compressive stress layer instead of emerging in material surface.
At this time, because fatigue cracking behaviors of materials were closely related to the dislocation motion kinetics, the dislocation of fatigue source could freely spread at the material surface.
References [1] Hai jun WU, Wei YAO, Feng lei HUANG, Lian sheng ZHANG and Yong jian LI: Transactions of Beijing Institute of Technology Vol. 30 (2010), p. 258 [2] Feng HUAN, Xian min LIU and Chun xu WANG: Journal of Iron and Steel Research Vol. 15 (2003), p. 25 [3] A Javidi, U Rieger and W Eichlseder: International Journal of Fatigue Vol. 30 (2008), p. 2050 [4] Yu kui GAO, Xiang bin LI, Qing xiang YANG and Wei YAO: Materials Letters Vol. 61 (2007), p. 466 [5] K Dalaei and B Karlssona: Materials Science and Engineering A Vol. 528 (2011), p. 7323 [6] S Bagherifard, I F Pariente and R Ghe: Procedia Engineering Vol. 2 (2010), p. 1683 [7] D R Askeland and P P Phule: Essentials of Materials Science and Engineering (Defence Industry Press, Beijing 2004)
[8] T Roland, D Retraint, K Lu and J Lu: Materials Science and Engineering A Vol. 445 (2007), p. 281 [9] Yu kui GAO: Rare Metal Materials and Engineering Vol. 33 (2004), p. 1000

The constitutive relation of couple stress is turned out in the form[8-10]: (6) The parameter is defined the rotational modulus in describing the rotational property of materials.
Then there are totally three material parameters for the generalized linear elasticity.
Acknowledgements This work was financially supported by National Basic Research Program of China (2011CB612211) and National Natural Science Foundation (11072276).
Smart Materials and Structures, Vol.10(2001), p. 1256-1271 [7] Dedkov GV.
Journal of the Mechanics and Physics of Solids, Vol.51(2003), p. 1477-1508 [9] Chong AC, Yang F , Lam DC , Tong P.

P., Science 1998, 281, 2013-2016
M., Science 1998, 281, 2016-2018
Y., et al., Advanced Materials 2008, 20, 3416-3421
[8] Pan D.; Wang, Q.; Jiang, S.; Ji, X.; An, L, Advanced Materials 2005, 17, 176-179
R., et al., Journal of Physical Chemistry B 1997, 101, 9463-9475.

Introduction There are complex components of pollution material, poor biodegradability in straw pulp papermaking wastewater.
From Table 3shows, there are irremoved material which are phthalic acid mono-2-ethylhexyl ester and Diisobutyl phthalate (DIBP).
Dissertation University of Science and Technology Beijing，2005
Chemical Engineering Journal, 2009, 146：205-210
[6] Chen Xiaolei, Fang Zhanqiang, etc．A Preliminary Study on Treatment of Papermaking Wastewater in ASBR [J]．Journal of South China Normal Ubiversity (Natural Science Edition), 2007-08．

Fig.1 Finite element analysis model Concrete constitutive model Concrete constitutive model uses damage constitutive model of concrete in ABAQUS program which assumes that the destruction of concrete material is mainly for the cracking and crushing.
China Building Materials Information, Vol. 6 (2011), p. 53-54 [2] Junqing Ma, Prefabricated construction review.
Heilongjiang science and technology information, Vol. 12 (2009), p. 271 [3] Yaoqing Fan, Joint design between beam and column of Japanese building.
Sichuan Building Science Research, Vol. 37 (2011), p. 83-86 [4] Jiuru Tang, Xuehong Chen, Behaviour and Calculation of Shear Capacity of Steel Reinforced Concrete Beam-Column Joint.
Journal of building structures, Vol. 11 (1990), p. 28-36 [5] Qiyun Zhu, Zixiong Guo, Nonlinear Finite Element Analysis of SRC Column-RC Beam Hybrid Joints, Journal of Huaqiao University(Natural Science), Vol. 31(2010), p. 453-457 [6] Xinyu Yue, Seismic test research on knee joints lapped splice joint located at outer side of column top in frame structures with HRB335 bars.

The Temperature Control of the Preheating Tank in the Procedure of Chloroacetic Acid’ s Crystallization Zengfang WANG1,a, Chaoying LIU2,b,Xueling SONG1 and Yuxian GAO1 1 Instituteof electrical engineering, Hebei University of Science and Technology, Shijiazhuang ,China 2 Polytechnic college, Hebei University of Science and Technology, Shijiazhuang ,China awzf881207@163.com, bliucy@hebust.edu.cn Keywords: Fuzzy PID control.Smith predictor control.Chloroacetic acid.
Crystallization Process and Control Requirements in MCA’s Production A B B-A DEV TC2 U2 tank TT 47℃ - T2 LCCC U1 tank LTCT H Hs TC1 U3 reactor TT - T1 Given T1 Because melting point of different material is different , separate dichloroacetic acid from MCAby method of cooling crystallization[2].According to the process flow diagram of MCA crystallization ,reasonable control scheme is put forward which is shown in Fig. 1. 25℃ 38 ℃ 55 ℃ 80 ℃ T/℃ 0 Fig. 1 The control scheme of MCA crystallization Fig. 2 Material temperature change curve Crystal process in MCA’s production is divided into fifth stages.The temperature variation trend of the material in the crystallization reactor is shown in Fig. 2 .
Acknowledgements This paper is supported by Institute of electrical engineering, Hebei University of Science and Technology.
An improvement in the control scheme for the crystallization procedure of MCA’ s interval producing process.Journal of Nanchang University,Vol.24(2002)
[2] Haiyan Guo.The study of synthesizing process and crystallizing process on lower unit consumption chloroacetic acid.Dalian: Dalian University of Technology master's degree thesis(2006) [3] Chaoying Liu,Zheying Song and Xueling Song.Application of Fuzzy decoupling control for penicillin crystallization process.Journal of Hebei University of Technology,Vol.34(2005)

Bilingual-Teaching Model of Automatic Control Theory Teaching Materials.
Two-thirds of them prefer the English materials supplemented by Chinese handouts for reference.
More importantly, they are now able to lead their self-learning on the English materials.
Second, not all the students could completely understand their English learning materials.
Study on Bilingual Teaching of Automatic Control Theory, Journal of Changchun University of Science and Technology 2009; 3:500-504, in Chinese