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Actually, the sensor materials are exhibiting semiconductor nature.
There are three groups of materials used as humidity sensors: electrolyte, organic, polymers and ceramics [10].
The ceramic materials previously studied include TiO2 [12], MgAl2O4 [13], ZnCr2O4 [14], a-hematite [15] and ZnMn ferrite [16].
Dube, Journal of American Ceramic Society, 88(2005) 519 [2] S.
Murthy “ Ferrites Materials: Science and Technology”, Springer – Verlog, Narosa Publ.

Lavernia, "Processing microstructure and fracture behavior of spray atomized and deposited aluminium -silicon alloy", Journal of Materials Science 32 (1999), 2835-2848
Tawfik, "Mechanical properties of rapidly solidified ribbons of some Ai-Si based alloys", Journal of Materials Science, vol 32, (1997), 2997-3000
Giese, "Thixoforming of an automotive part in A390 hypereutectic Al-Si alloy", Journal of Materials Processing Technology, Vol. 135, (2003), 271-277
Tsao, "Si coarsening of spray formed high loading hypereutectic Al-Si alloys in the semisolid state", Materials Science and Engineering A, Vol. 396, (2005), 263-270
Chaoa, "Dry sliding wear behaviors of Al-25Si-2.5Cu-1Mg alloys prepared by powder thixocasting", Materials Science and Eng.

In this study, a design method for stem made of composite material is proposed.
Materials and Methods Composite Stem.
Material coordinate systems are defined in each of all elements because of the anisotropy of femur and composite stem. l axis is the major direction of a material, t axis is transversal to l axis, and z axis is orthogonal to other two axes.
Acknowledgment This study is sponsored by the Japan Society for the Promotion of Science (JSPS), "Grant-in-Aid for Scientific Research".
Bert, "Custom Total Hip Arthroplasty", The Journal of Arthroplasty, Vol. 11, No.8 (1996) pp905-915 [5] C.

Optimization and restructuring of the road resource with construction materials based on road environment Xiaodong Tan1, a, Xiaoyi Yang2, b , Piwei Song3,c 1,2,3 School of Mechanical Engineering, Dalian Jiaotong University, China a 416808171@qq.com, byangxiaoyi0826@163.com, c775704875@qq.com Keyword: traffic congestion,road occupation rate,restructuring Abstract: For most of the cities will appear traffic congestion on the work the peak of the big gap in both directions of traffic between the same road sections in china, comparative analysis of the collected traffic flow on urban road sections on the flow and the value of road occupation rate and statistical derivation.Proposed the concept of restructuring on the road environment.
For most of our cities will appear traffic congestion on the work the peak of the big gap in both directions of traffic between the same road sections, by taking advantage of the road reorganization of resources and the idea of network topology on the road environment to restructuring,to exist road resources to optimal control theory to improve road traffic congestion phenomenon and improve the utilization rate of the road to save construction materials .[1] Data acquisition of traffic conditions characteristic In this paper, use the fixed traffic detectors to acquire the parameters of the road.Traveling in both directions on the section of the road install a detector respectively.
Fig. 2 The original road traffic flow Fig.3 Reorganization of the road traffic flow Conclusion This paper presents a new concept on the road to restructuring with construction materials based on road environment, the rule of reorganization discriminant based on the specific state of the road, theoretically improve the resource utilization of the road, while alleviating the crowded state of rush hour on the road.
Study of Highway Recurrent and Un-recurrent Congestion Automatic Detection Methods[J].Journal of Southeast University: Natural Science Edition,1994,24(2):60-65
China Journal of Highway and Transport Vol 19 N0.3 May 2006

Simpson, Journal of Vacuum Science and Technology B, 19 (2001) 2598 [3] M.
Baneyx, Nature Materials, 2 (2003) 577 [4] Y.
Ajayan, Smart Materials and Structures, 11 (2002) 691 [8] Y.
Li, Materials Science and Engineering A, 444 (2007) 138 [14] M.
Saito, Journal of Vacuum Science and Technology B, 22 (2004) 1335 [17] S.

This, in turn, contributes to expanding the applications of laser materials processing technologies [30-41], including the area of welding stainless steels [28, 30, 32-34, 37, 40].
The lack of thermodynamic and thermophysical data on the properties of alloys is one of the important problems in the development of new advanced materials of a complex chemical composition.
The same problem exists also during the application of new methods of thermal influence (for example, laser radiation) on the known and widely used materials.
Shishkin A 2017 Diffusion welding through vacuum-deposited porous interlayers Journal of Materials Processing Technology 247 268-279 doi:10.1016/j.jmatprotec.2017.04.029 [14] Kim J, Kim S, Kim K, Jung W, Youn D, Lee J and Ki H 2016 Effect of beam size in laser welding of ultra-thin stainless steel foils Journal of Materials Processing Technology 233 125-134
Procedia CIRP 74 456-460 doi:10.1016/j.procir.2018.08.151 [37] Alcock J and Baufeld Bb2017 Diode laser welding of stainless steel 304L Journal of Materials Processing Technology 240 138-144 doi:10.1016/j.jmatprotec.2016.09.019 [38] Reisgen U, Krivtsun I, Gerhards B and Zabirov A 2016 Experimental research of hybrid welding processes in combination of gas tungsten arc with CO2- or Yb:YAG-laser beam Journal of Laser Applications 28 022402 doi:10.2351/1.4944096 [39] Shelyagin V, Khaskin V, Bernatskyi A, Siora A, Sydorets V and Chinakhov D 2018 Multi-pass laser and hybrid laser-arc narrow-gap welding of steel butt joints Materials Science Forum 927 64-71 doi:10.4028/www.scientific.net/MSF.927.64 [40] Kuznetsov M, Larin M and Sorokin A 2019 Features of laser welding light constructions from cryogenic austenitic steel 316L Key Engineering Materials 822 512-519 doi:10.4028/www.scientific.net/KEM.822.512 [41] Poznyakov V, Markashova L, Shelyagin V, Zhdanov S, Bernats’kyi A, Berdnikova O and

Ferraro, Journal of materials engineering and performance, 23 (2014) 611-621
Gholizadeh, Materials & Design, 50 (2013) 7-14
Wang, Journal of Materials Processing Technology, 207 (2008) 107-111
Zhang, Materials Letters, 57 (2003) 2523-2529
Doty, Materials Science and Engineering: A, 486 (2008) 241-252

Kang Materials Interface Laboratory, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea Keywords: Grain Boundary, Liquid Film, Sintering Kinetics, Abnormal Grain Growth, BaTiO3 Abstract.
The design of microstructure in materials, ranging from ultrafine, moderately sized, duplex to single crystalline, has long been a challenging subject to material scientists.
Normal grain growth occurs in materials with rough boundaries while abnormal grain growth can occur in materials with faceted boundaries.
On the other hand, for faceted boundaries, either duplex or ultrafine structured materials can be obtained.
Pound: Progress in Material Science (Pergamon Press, United Kingdom 1963) [8] S.

The core of the system is a solar photovoltaic cell, a solar cell to work well not only to the battery materials, structures, is also affected by the external working conditions.
Pivac: Effects of low-temperature annealing on polycrystalline silicon for solar cells, Solar Energy Materials and Solar Cells, Vol.95 (2011), p.559-563 [2] A.
Khalili: Temperature dependence of InGaN/GaN multiple quantum well based high efficiency solar cell, Solar Energy Materials and Solar Cells, Vol.95 (2011), p.3124-3129 [3] S.
Weingaertner: Numerical investigations of solar cell temperature for photovoltaic concentrator system with and without passive cooling arrangements, International Journal of Thermal Sciences, Vol.50 (2011), p.2514-2521 [4] P.
Ravindra: Temperature dependence of solar cell performance—an analysis, Solar Energy Materials and Solar Cells, Vol.101 (2012), p.36-45 [8] Y.

The relative change of resistance is Δρ/ρ= πEσ (ρ -- resistivity; πE -- piezoresistive coefficients of the materials; σ -- acting force).
Fig. 5 Diagram of direct piezoelectric effect Piezoelectric material Polyvinylidene-fluoride (referred to as PVDF) is a new type of polymer-type material.
Chinese Journal of Scientific Instrument, 29(4) (2008) 155-158
Chinese Journal of Scientific Instrument, 29(4) (2008) 149-154
Chinese Journal of Scientific Instrument, 29(4) (2008) 221-225