Search results

Synthesis and Mesophases of Azobenzene Compounds with Terminal Vinyl Group Sha Sun1, a, Wen-cai Xu1, b, Chun-xiu Zhang1 and Hao Wu1 1Beijing Key Laboratory of Printing & Packaging Materials and Technology, Beijing Institute of Graphic Communication, Beijing 102600, China asunsha1126@126.com; bxuwencai@bigc.edu.cn Keywords: Azo-compounds; Terminal Vinyl Group; Mesophase; Texture Abstract.
They are widely used as advanced functional materials for their unique photographic performance.
Materials and measurements 6-Bromo-1-hexene was purchased from DaTianFengTuo Chemical-Technology CO., LTD (Beijing, China).
Wang: Journal of Applied Polymer Science Vol. 91 (2004), p. 789.

A preliminary investigation on friction stir spot welding of steel / Mg Xijing Wanga , Changqing Zhangb, Boqiang Li c and Tian Li 1State Key Laboratory of Advanced Non-ferrous Materials, Lanzhou University of Technology, Lanzhou 730050, CHINA awangxj@lut.cn, bzcq4321@yahoo.cn, cliboqiangdy@163.com Keywords: Friction Stir Spot Welding, Rotating tool without pin, process parameters, atomic diffusion, microscopic analysis Abstract.
WE-100 universal materials testing machine was applied to test the shear force of joint.
Swartzendruber: Binary Alloy Phase Diagrams, ASM international, Materials Park,OH, p.1722 [2] guohong luan,guang li weibing wang etc:friction flow welding technology,vol.31(2010),p.1 [3] haitao wang,qingjie song,chunli yang etc: study of wetting and spreading out of HS201 in cold matrix hot-wireTIG welding,production Theme,vol.12(2008),p.40 [4] shichun li, TFDC phase map, Progress in Natural Science,vol.13(2003),p.1154 [5] yuqiang song,shichun li, study of Mg powder and Zn powder sintered to form intermetallic compounds, Chinese Journal of Rare Metals vol30(2006),p.12

Transducer materials are chosen such that the acoustic impedances of the front and back masses match that of the piezoelectric material and therefore minimise internal reflections [5].
In order to avoid unnecessarily complicated models of the joint interfaces and piezoelectric losses, a global damping ratio is used for all materials.
These modal frequency results are in agreement with the FEA results to within 6% and the differences may be ascribed to assumed material specifications, damping estimations and simplifications of the boundary conditions.
Mahdavinejad: Finite Element Dimensional Design and Modeling of an Ultrasonic Transducer, Iranian Journal of Science & Technology, Transaction B, Engineering, 29(B2), (2005).

Ariffin3,c 1 Graduate student, Department of Mechanical and Materials Engineering Universiti Kebangsaan Malaysia, Bangi 43600, Selangor DE, Malaysia 2 Department of Mechanical Engineering, Syiah Kuala University Jl.
Syech Abdul Rauf 7 Banda Aceh, Indonesia 3 Department of Mechanical and Materials Engineering Universiti Kebangsaan Malaysia, Bangi 43600, Selangor DE, Malaysia a syarizal.fonna@gmail.com, b ridha@tdmrc.org, c kamal@eng.ukm.my Keywords: Inverse Analysis, boundary element method, particle swarm optimization, reinforced concrete, corrosion Abstract.
Vrahatis, Information Science Reference, New York (2010)
[5] Kyun Ho Lee, Seung Wook Baek, Ki Wan Kim, International Journal of Heat and Mass Transfer, 51, (2008), p. 2772-2783
Ariffin, Key Engineering Materials, Vols. 462-463 (2011), p. 230-235

Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications Evaluation of Macroporous Biphasic HA-TCP Ceramic as a Bone Substitute K.S.
Bones can regenerate themselves to repair defects up to a certain size but if the defect is too large and severe the suitable implant materials have to be applied to facilitate the bone repair [1].
To overcome the limited availability of natural bone graft materials for hard tissue repair and replacement, various synthetic biomaterials have been developed.
Materials and Methods The biphasic HA-TCP ceramic with macroporous structure was prepared according to N.
Acknowledgement This work was supported by a Grant-in-Aid for Mission Oriented Basic Research Programs from the Korea Science and Engineering Foundation (R01-2001-000-00429-0).

Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications In Vitro Cytocompatibility of Osteoblastic Cells Cultured on Chitosan-Organosiloxane Hybrid Membrane Y.
Title of Publication (to be inserted by the publisher) Materials and Methods Materials preparation An appropriate amount of chitosan (Aldrich ®, high molecular weight) was dissolved in 0.25 M acetic acid aqueous solution to attain a concentration of 2 (w/v) %.
The wettability was assessed by the sessile drop method, using distilled water as the testing liquid and an automatic contact angle meter (Kyowa Interface Science, Model CA-V).
MG63 cells were cultured (10 4 cellcm -2) up to 6 days in control conditions (absence of materials, standard plastic culture plates) and on the surface of the hybrids.

In terms of economy and efficiency, cement-based materials are used mainly as grouting materials.
Experimental Materials.
Australian Journal of Basic and Applied Sciences, 2010, 4(12): 5862-5868 [3] A.
Materials and Structures, 2003, 36: 402-412 [4] J.
Materials and Structures, 2013, 1, 22 [8] A.

Materials and methods Study site description The headwaters of the Yangtze River are between 32°30′ and 35°40′N and between 90°30′ and 96°00′E.
Wang: submitted to Chinese Geographical Science (2006) [11] D.X.
Monteith: submitted to Journal of Applied Ecology (1972) [16] S.L.
Yang: submitted to Chinese Journal of Applied Ecology (2008) [18] Y.G.
He: submitted to Journal of Mountain Science (2009) [19] C.P.

With literature support from existing research materials, the paper put forward five research hypotheses, as sated below: H1: The tourists in Beijing Olympic park have significant characteristics.
International Journal of Management, 22(3), pp. 426-435, 2005
Journal of Travel Research, 42(5), pp. 372-380, 2004
Sports and Science. 32(1), pp. 43-45, 2011.
Journal of Ningxia University, 29(2), pp. 185-188, 2008.

Experimental Details Materials.
The stiffness and rigidity of the material is normally associated with higher crystallinity index, and the higher tensile strength of nanocellulose is expected to be more effective for producing high-strength composite materials [10].
Thermal properties of cellulosic nanomaterials extracted from various starting materials.
However, their thermal resistance still remained satisfactory for the thermal processing with other polymeric materials under typical processing temperature.
Cheng, Qin, Z., Liu, Y., Qin, Y., Li, T., Chen, L., Zhu, M., Efficient extraction of carboxylated spherical cellulose nanocrystals with narrow distribution through hydrolysis of lyocell fibers by using ammonium persulfate as an oxidant, Journal of Materials Chemistry A, 2, (2014), 251-258