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Experimental study of the concave bionic drag reduction needles WANG Ji-yue, CONG Qian* Key Laboratory of Bionic Engineering of Ministry of Education, Jilin University, Changchun 130022, China jywang12@mails.jlu.edu.cn, congqian@jlu.edu.cn Keywords Syringe Needle, Bionics, Drag Reduction, Concave, Non-smooth Abstract In this paper, we have started from the point of view of bionics, doing surface bionic non-smooth design at the standard No.16 animal syringe needles.
Public Medical Forum Magazine, 2008(18): 568 ] and skin dew injection[[] ZHANG Li-xin, LIU Jin-zhou, The multi-functional skin dew that is used for painless injection and clearance traumatism[P].
IEEE Transactions on Biomedical Engineering, 2005, 52(2): 909-915 ].In order to achieve this mechanism, the total length of micro-needles is only in the micron level.
Advances in Mechanics, 2009,39(5):546-554 ] (Fig.5), because of the concave non-smooth structure allowed air existing in the concave units.
Journal of Mechanical Engineering, 2012,48(15):126-130 ].

Performance of Dosage of Ceramic Chopped Fibers in Aluminous Cement-Based Composites after Exposure to High Temperatures Marcel JOGL1,a * 1Czech Technical University in Prague, Faculty of Civil Engineering, Experimental Centre, Thákurova 7/2077, 166 29 Prague 6, Czech Republic amarcel.jogl@fsv.cvut.cz Keywords: Aluminous cement, cement composites, ceramic fibers, high temperature, residual mechanical properties, thermal loading.
Jogl, Refractory Cement Composite Reinforced by Various Types of Fibers, Materials Science Forum 824 (2015) 173-177
Konvalinka, Fracture characteristics of refractory composites containing metakaolin and ceramic fibers, Advances in Mechanical Engineering 7(3) (2015) 1-13
Khoury, Effect of fire on concrete and concrete structures, Progress in Structural Engineering and Materials 2 (4) (2000), pp. 429-447

Barbosa de Lima1,d 1Department of Mechanical Engineering, Federal University of Campina Grande (UFCG), Zip Code 58429-900, Campina Grande-PB, Brazil. 2Department of Materials Engineering, Federal University of Rio Grande do Sul (UFRGS), Zip Code 91501-970, Porto Alegre-RS, Brazil. 3Department of Mechanical Engineering, Federal University of Rio Grande (FURG), Zip Code 96201-900, Rio Grande-RS, Brazil.
The flow front advance for both cases during the resin injection is shown in Figs.3-5.
Lima: Defect Diffusion Forum, Vol. 334-335 (2013)

Researching on the Mode of Selecting Key Village in Administrative Villages Guangrong Hong1,a, Bifeng Chen2,b 1School of Urban Construction, Hubei Engineering University, Xiaogan432000, China 1Hubei Township Development Researching Center, Xiaogan432000, China 1Development and Plan Institute of Villages and Small Towns in Hubei Engineering University , Xiaogan432000, China 2School of Urban Construction, Hubei Engineering University, Xiaogan432000, China ahgr18@163.com, bcbf0088@163.com Keywords: Mode, Key village, Selecting, Administrative villages Abstract.
They are also required to plan in advance and to make reasonable layout of rural land, to guide the rural industrialization and large-scale of agriculture, to identify key nodes of the integration of urban and rural links [1, 2].
Vol.27(2013), p.64 [4] G.E.Wang, Y.Tang, Z.C.Wei, W.L.Jing: Urban Planing Forum.

Materials Science & Engineering, Stony Brook University, Stony Brook, NY 11794 USA 4Dept.
Materials Science & Engineering, Carnegie Mellon University, Pittsburgh, PA 15213 USA akrishna.shenai@utoledo.edu, bNeudeck@nasa.gov, cMichael.Dudley@sunysb.edu, drfd@andrew.cmu.edu, *corresponding author Keywords: Power Switch, Defects, Cost, Performance, Reliability, High-Voltage, High-Current Abstract: A paradigm shift in the development and utilization of power semiconductor switch technology is proposed.
Summary and Recommendations It is recommended that a new "reliability-driven" technology development approach be adopted in order to break this "gridlock" and make critical advances in SiC and GaN power devices.
Gaylon, "On the Reliability of DC-DC Power Converters ,"Intersociety Energy Conversion Engineering Conf.
Forums, vols. 600-603 (2009), pp. 931-934.

Physical Properties of Volcanic Ash Based Geopolymer Concrete PUPUT Risdanareni1, 2, a*, ADJIB Karjanto1,b and FEBRIANO Khakim1,c 1 Department of Civil Engineering, UM, Indonesia 2Konsorsium Riset Geopolimer Indonesia (KORIGI), Lab Beton dan Bahan Bangunan ITS, Surabaya, Indonesia apuput.risdanareni.ft@um.ac.id, b adjib.karjanto.ft@um.ac.id, cfebrianokhakim@gmail.com Keywords: Volcanic Ash, Mount Kelud, Geopolymer Concrete, porosity, setting time Abstract.
References [1] C.A Hendriks, Proceedings of the 4th International Conference on Greenhouse Gas Control Technologies, Interlaken, Austria, Aug. 30–Sept. 2, IEA GHG R&D Programme, UK( 1998) [2] Ellis Gartner, Cement and Concrete Research ,34, 1489–1498 (2004) [3] Davidovits, Proceeding First International Conference on Alkali Cement and Concrete (1994) [4] Ekaputri,J.J, Ulum, Bahrul, Triwulan, Ridho, Bayu Aji, Susanto, Tri Eddy and Mohd Mustafa Al Bakrie Abdullah, Applied Mechanic and Material Journal (2015) [5] Ekaputri, J.J and Triwulan, Journal of Civil Engineering ITB Vol.20 No.1 ( 2013) [6] SN Fifinatasha , Advances in Environmental Biology, 7(12) October Special Issue 2013, Pages: 3835-3842 (2013) [7] Hardjito, D., Wallah S.E., and Rangan B.V., Civil Engineering Dimension, Vol. 6, No. 2, pp. 88–93 (2004) [8] Risdanareni, Puput, Ekaputri, J.J, and Triwulan , Materials Science Forum Vol. 803 pp 125-134 (2015) [9] Risdanareni, Puput, Ekaputri,J.J, Mohd Mustafa Al Bakri Abdullah

Preliminary Study on the Bioactivity Properties of Cordierite/Β-Wollastonite Biocomposite Ceramics HAMISAH Ismaila and HASMALIZA Mohamadb* School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia ahamisahismail@usm.my, b*hasmaliza@usm.my Keywords: cordierite; β-wollastonite; bioactivity properties; hydroxyapatite Abstract.
The phase and morphology were characterized using an X-ray diffraction (XRD; Bruker D8 Advance) and scanning electron microscopy (SEM; Zeiss Supra 35 VP).
Acknowledgement The authors would like to acknowledge the School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia for supporting this project through FRGS/1/2019/TK05/USM/02/6 and for their help with this work.
Licciulli, Wollastonite/hydroxyapatite scaffolds with improved mechanical, bioactive and biodegradable properties for bone tissue engineering, Ceram.
Forum. 756 (2013) 43–47. https://doi.org/10.4028/www.scientific.net/MSF.756.43

Investigation of the Interfacial Reaction between Optical Glasses and Various Protective Films and Mold Materials Choung-Lii Chao 1,a , Cheng-Bang Huo1,b,Wen-Chen Chou1,c, Tzung-Shian Wu 1,d, Kung-Jen Ma2,e, Chien-Huang Kuo2,f , Ying-Tung Chen3,g , Chung-Woei Chao4,h 1 Department of Mechanical and Electro-mechanical Engineering, Tam-Kang University, Tamsui, Taipei-Hsien, Taiwan 2 School of Science and Engineering, Chung Hua University, No. 707, Sec. 2, Wu Fu Rd., Hsin Chu, Taiwan 30067 3 Department of Mechatronic, Energy and Aerospace Engineering, National Defense University, No. 190, Sanyuan 1st St., Tahsi, Taiwan 33508 4 Department of Information Management, Hsing-Wu College, Taiwan a clchao@mail.tku.edu.tw, b 694341594@s94.tku.edu.tw, c106096@mail.tku.edu.tw, d air989989@yahoo.com.tw, e ma600229@ms17.hinet.net, f pots0382@yahoo.com.tw, g d92522026@ntu.edu.tw, h089009@mail.hwc.edu.tw Keywords: Optical Glass; Glass Molding; Interfacial Reaction
[2] Information on http://www.toshiba-machine.co.jp/ [3] Information on http://www.sumita-opt.co.jp/cn/optical.htm [4] Information on http://www.oharacorp.com/catalog.html [5] Information on http://www.schott.com/advanced_optics/ [6] K.
Chen: submitted to the proceedings of DSL2009, Roma, Italy, 24-26 th June, 2009, to be published in Defect and Diffusion Forum.

Gere, Theory of elastic stability, United Engineering Trustees, 1936 [5] J.W.
Hutchinson, Plastic buckling, Advances in applied mechanics, 14 (1974) 67-144 [6] J.W.
Han, A new approach for determination of Wrinkling Limit Curve (WLC) in deep drawing, Forming Technology Forum (2015) 75-80 [13] M.
Radonjic, New criterion for prediction of the wrinkle formation in deep drawing process, Key Engineering Materials, 651-653 (2015) 71-76 [14] R.
Liewald, A new method to enhance the accuracy of the buckling test using modified Yoshida sample, Advanced Materials Research, 1018 (2014) 199-206

Fig. 4 The comparison between the measurement and simulation (a) The rolling direction component stress; (b) The transverse direction component stress 3.2 Internal stress measurement In recent years, the crack compliance method has been applied in many engineering problems, showing its great potential[14,15,16].
Distortion caused by residual stresses in machining aeronautical aluminium alloy parts: recent advances[J].
The International Journal of Advanced Manufacturing Technology, 2017, 89(1-4): 997-1012
Numerical simulation of quenching and pre-stretching residual stress in 7085 aluminium alloy plate[C]//Materials Science Forum.
Computer methods in applied mechanics and engineering, 2007, 196(37): 3577-3584