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Iron hook is widely used to strengthen Chinese tenon-mortise joint to enhance its strength in southern China districts.To find strengthening effects of this material, by shaking table tests dynamic characters as well as seismic responses of a 1:8 scale wooden frame model were studied under conditions that each of its tenon-mortise joint was/was not strengthened by iron hook.By white noise excitation,values of basic frequency of both unstrengthened and iron hook strengthened models were obtained;by inputing El-centro earthquake waves of different peak acceleration values, displacement and acceleration responses of the models were obtained,dynamic magnification factors for tenon-mortise joints as well as models were discussed.Results show that after each tenon-mortise joint of the model is strengthened by iron hook,its basic frequency increases,its displacement and acceleration responses under earthquakes decrease.However as iron hook can only restrict tenon from pulling out of mortise but
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Polymer materials form one of the most important categories of clinical or biomedical materials.
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Table 1 Basic parameters of materials Materials Density (kg/m3) Young's modulus (Pa) Poisson's ratio Coefficient of friction with alloy steel Polycrystalline diamond 4120 8.5×1011 0.07 0.1 Alloy steel 7850 2.0×1011 0.3 0.3 Fig. 4 Pendulum wear-resistant belt and impact cylinder meshing Defining Contact and Boundary Conditions.
Acknowledgements The authors express thanks for financial support from the National Science and Technology Major Project (Item No.2016ZX05021-003), the Key Program of National Natural Science Foundation of China (Item No. 51734010), and the National Natural Science Foundation of China (Item No. 51674272).
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The material grade of model beams are Q235 for steel girders, C30 for concrete slab, and HRB235 for reinforcements.
These test results show that, the transverse slip between the concrete slab and steel girder has certain proportion relationship with the torsion angle of the composite beam, but this conclusion need more experiment support to eliminate the influence of the material Poisson ratio and measure error.
Acknowledgements The authors would like to acknowledge the large grant provided by the National Natural Science Foundation of China (No. 51108281) and the scientific research development program (2011G016-C) of China Ministry of Railway.
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A case of lapping has mainly been known as material removal is determined by compressing, scratch of polishing grain.
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The turret material is SCM21 nickel-chromium-molybdenum alloy steel.
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Material property: Table 1 shows the material properties of the steel members used in this study, which were specified on the basis of the experimental results by the authors [7].
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Introduction Luminescent molecular materials based on rare-earth complexes are a very popular study field.
They are broad applicated in biochemistry, material chemistry, Medicine and so on, For example luminescent polymer films, active optical fibers for data transmission1,2, and light-emitting devices3,4 and probes of biological macromolecule systems5.
ZR2010BL025)，State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (Jilin University)(No. 2011-13), MOE Key Laboratory of Analytical Chemistry for Life Science (Nanjing University)(No.
KLACLS1002) and the National Science Foundation of China (No. 21171132) References: [1] Bunzli J.
[5] Liang Oyang, Hao-Ling Sun, Xin-Yi Wang, Jun-Ran Li, Dao-Bo Nie, Wen-Fu Fu, Song Gao, Kai-Bei Yu, Journal of Molecular Structure, 740, 175(2005).

Fabrication and Test of 3C-SiC Electrostatic Resonators Marcel Placidi1, a, Philippe Godignon1, b, Jaume Esteve 1, c, Narcis Mestres2, d and Gabriel Abadal3, e 1 Centre Nacional de Microelectrònica (CNM), Campus UAB, 08193 Bellaterra, Barcelona (Spain) 2 Institut de Ciència de Materials (ICMAB), Campus UAB, 08193 Bellaterra, Barcelona (Spain) 3 Escola Tècnica Superior d'Enginyeria (ETSE), Campus UAB, 08193 Bellaterra, Barcelona (Spain) a marcel.placidi@cnm.es, bphilippe.godignon@cnm.es, cjaume.esteve@cnm.es, d narcis.mestres@icmab.es, egabriel.abadal@uab.es Keywords: Electrostatic, Resonator, 3C-SiC Abstract.
Wide band gap materials, and particularly Silicon Carbide, due to its exceptional properties, seems to be appropriate for replacing Si-based devices in harsh environment applications.
This material would be also beneficial for other electrostatic devices such as micromotors or comb drive resonators.
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Teva: Journal of Microelectromechanical Systems Vol.14 (3) (2005) p.508 [4] Nathanson H.