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However, commonly, there are limitations on reducing the thickness due to technical reasons related to the Surface Mounting Technology (SMT) for a PCB, material of the case, forming process, and assembly, and the paces of development of other technologies is slow.
For this study, a sheet metal of heat-treated SK5 steel was used as the material for fabricating the flat spring.
Generally, the hardness of raw SK5, which is a carbon tool steel, is only 170 ± 10 HV; however, the mechanical properties of the material can be controlled relatively easily by varying the heat treatment conditions in a process called austempering.
The material used to fabricate the spring wire rod is SUS301H, which is widely used for mobile phones, and the chemical composition is as shown in Table 3.
Nam: ASME Journal of mechanical design Vol. 129 (2007) p. 930-940

Different levels of urban pollution with development degrees cause the different environmental risks. 0 Introduction At present, urban soil heavy metal is still hot topics in the study of environmental science, urban soil is the main medium of heavy metals.
Materials and methods Urban soil sampling and experimental materials and methods are shown in table 1, the depth of the urban soil sampling of 0 ~ 20 cm 0 ~ 10 cm.
Journal of Soil and Water Conservation, 2007, 21: 75-78

And then, the materials obtains elasticity.
Experimental Materials.Trimellitic anhydride,purchased from aladdin,was dried 6 hours under vacuum condition at 140˚C.Aminobenzoic acid(PABA),1,4-butanediol and benzoic acid were used as received, toluene and N,Ndimethylformamide(NMP) were dried with calcium hydride,distilled under reduced pressure, all these chemical reagents were purchased from Chengdu Kelong solvent plant.
Acknowledgements This work was financially supported by Chinese National Nature Science Foundation (50973064).
Hsiao: European Polymer Journal (2006)42 p. 328 [5] G.

Many Chinese scholars have studied the effect of cementitious material content, sand percentage, mixing amount of superplasticizer and other factors on workability of self-compacting concrete [1,2,3], however, the effect on rheological characteristics was lack of research.
Experiments Materials.
Wang, Effect of cementitious material content on properties of fresh self-compacting concrete, Journal of south china university of technology (Natural science edition), 4 (2012) 79-84

The workpiece material used in the experiment is 3J33 maraging steel with hardness of HRC 34.
The tool material is cemented carbide YT15.
Acknowledgments The authors are grateful for the support received from National Natural Science Foundation of China (grant No.10576011) for carrying out the research reported in this paper.
Madl: Journal of Materials Processing Technology Vol 118 (2001), pp.269-277

Amorphous ribbon is a ferromagnetic material [4-5] that can be absorbed by MAF.
[2] Jun Sunakawa, Yoshio Bizen, Shunsuke Arakawa, “Methods for producing iron-based amorphous alloy ribbon and nanocrystalline material”.
[4] Yong Ik Jang, Jongryoul Kim, Dong Hyuk Shin, “Microstructures and magnetic properties of amorphous Fe–Si–B–Ni alloy ribbons,” Materials Science and Engineering, vol.
[9] Athanasios Chasalevrisa, Fadi Dohnalb, Ioannis Chatzisavvas, “Experimental detection of additional harmonics due to wear in journal bearings using excitation from a magnetic bearing,” Tribology International, vol. 71, 2014, pp.158–167

Preparation and Application of Waterborne Unsaturated Fiber Crosslinking Agent Jinlong CHEN1, a, Xiumei ZHANG1, 2, b, Yixin HE1, c and Cong MIAO1, d 1College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou 310018, China 2Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China achenjinlong0320@163.com, bxiumei@zstu.edu.cn, che_yi_xin@126.com, djackmiao108@126.com Keywords: Epoxy group; Fiber cross-linking agent; Double bonds; Unsaturated polymer; UV curing Abstract.
The self-polymerization of unsaturated double bonds under the action of ultraviolet light forms the network cross-linking structure to protect the existing hydrogen bonds via epoxy groups to give extensive cross-linking within the fibers. 1 Experimental 1.1 Experimental Materials St, chemical pure (CP); GMA, technical pure (TP); isoprene, CP; sodium dodecyl sulfate (SDS), CP; sodium persulfate, analytically pure (AP); trisodium phosphate (TSP), AP.
Journal of Applied Polymer Science. 80 (2001) 334-339

Introduction Grain seeds: wheat, barley, oats, rice, maize, buckwheat, etc. which provide food for humans and animals, as well as the raw material of some industrial enterprises, have an average moisture content of freshly harvested grains ranging from 13% to 40%.
In order to remove the water from the drying process, drained through the tubes (48) and (44), a container is used made of a silica gel-type hygroscopic material (46) supported by a sheet metal base (45) fixed on a pair bracket-embedded blade transducers (47), (41) on which resistive tensometric resistors (42), (43) are placed bound in the semi-bridge and coupled to the tensometric bridge (24).
By using the automation, measuring and control devices of the process parameters with which the grain seeds and technical plant drying unit was equipped, very close or even identical values of the humidity and the drying temperature of some samples of wheat, maize and sunflower were obtained, which leads to the idea that such systems, redesigned and adapted to the requirements of industrial installations, can lead to corresponding energy consumption results, end-stage parameter values of the materials to be dried, and to the design of some machines with the possibility to adjust the highly flexible technological parameters.
[6] KJ Chua, SK Chou, Low-cost drying methods for developing countries, Trends in Food Science & Technology 14 (2003) 519-528
[7] Anupam Tiwari, A Review on Solar Drying of Agricultural Produce, Journal of Food Processing & Technology, J Food Process Technology 2016.

Pensl4,i 1 Department of Physics / Centre for Materials Science and Nanotechnology, University of Oslo, P.O.
Box 1048 Blindern, 0316 Oslo, Norway 2 National Institute of Materials Physics, Bucharest-Magurele, P.O.
Goetzberger: Bell System Technical Journal Vol. 46 (1967), p. 1055 [3] J.

Surmann [3] found that the machinability of the engineering materials has a strong dependency on cutter inclination angles.
Experimental details The workpiece material is H-13 steel which is widely used in die&mould industries because of its good mechanical and thermal properties.
The roughnesses in different scales are linked with machining process and material property closely.
Acknowledgements This work is sponsored by the Science and Technology Development Program of Shandong Province (2014GGX103041), and the National Basic Research Program of China (2009CB724402).
Wang, et al: International Journal of Machine Tools and Manufacture.