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Influence of the Order of Incorporation of Sulfur in the Mechanical Properties of Vulcanized Nr Compounds Kleber Vacciolia*, Samuel Marcio Toffolib, Ticiane Sanches Valerac Department of Metallurgical and Materials Engineering Polytechnic School – University of São Paulo, São Paulo, SP – Brasil E-mail a*: kvaccioli@usp.br, e-mail b: toffoli@usp.br , e-mail c: tsvalera@usp.br Keywords: natural rubber, vulcanization, mechanical properties Abstract.
Experimental Materials Elastomer: dry natural rubber (ribbed smoked sheet); Vulcanizing agents: CBS (N-cyclohexyl-2-benzothiazolesulfenamide), and sulphur.
This fact may also be related to the better sulfur dispersion in the NR matrix, in the case of NR-I, resulting in lower structure mobility and also in a possible reduction in the free sulfur, thus avoiding an undesirable post-vulcanization of the material during its stay under heating [8-11].
:Journal of Applied Polymer Science Vol. 81 (2001), p. 710
Akiba: Progress in Polymer Science Vol. 22 (1997), p. 475

Introduction Silicon Carbide has attracted increasing attention in the last years as suitable material for power devices [1] and sensors [2].
Badalà, Towards a high performing UV-A sensor based on Silicon Carbide and hydrogenated Silicon Nitride absorbing layers, Journal of Instrumentation, 11 (2016) P10010
Saggio, Morphological and electrical properties of Nickel based Ohmic contacts formed by laser annealing process on n-type 4H-SiC, Materials Science in Semiconductor Processing, 97 (2019) 62-66
La Magna, Inter-diffusion, melting and reaction interplay in Ni/4H-SiC under excimer laser annealing, Applied Surface Science, 539 (2021) 148218
La Magna, Simulations of the ultra-fast kinetics in Ni-Si-C ternary systems under laser irradiation, Materials 14 (2021) 4769.

Nevertheless, these materials can commonly show problems associated with the heat generated during the machining process that reduces their machinability.
Nevertheless, these materials can commonly show problems associated with the heat generated during the machining process that reduces their machinability and increases the temperature mainly due to the strong tendency to adhere to the tool these materials have.
When these component need to be repaired it is necessary to machine both materials together.
Methodology This investigation is framed within a series of studies in which different materials, types of tools and cutting conditions are involved.
Cotterell, FEA modelling of setting and mechanical testing of aluminum blind rivets, Journal Material Processing Technology., Vol. 20(3) (2004), 27-334

MODEL1 MODEL2 MODEL3 Length 8.349 8.1 6.7 Inner diameter 1.415 1.471 1.41 Outer diameter 3.08 2.945 3.28 Number of slot 36 36 42 Fig.1 Assembly model of stator core in Pro / E Table 2 Main dimensions range (m) of the stator core Length Inner Diameter Outer Diameter Number of Slot 3.0～9.0 1.0～1.5 2.2～3.2 30，36，42，48，54，60，66，72 1.3 Finite element model in ANSYS software In this paper, generator stator core is idealized as an entity, and the SOLID185 element is used to mesh the core; We assume that the properties of core material is isotropic, elastic modulus is taken as 1.274 E11 Pa, Poisson's ratio 0.3 and, density 7 800 kg/m3for finite element calculations [4].
The created virtual manufacturing model of stator core provides a convenient means of science for its design, laminated and assembly; the proposed finite element model of stator core provides an important basis for the modal test, the structure design, electromagnetic design, manufacture and operation of the each capacity of large turbine generator.
Acknowledgements This work supported by Natural Science Foundation of Shaanxi Province, China.
References [1] Yixuan Wang, Ying Wang, Material Properties and Natural Frequency of Stator Core of Large Turbo-Generator，Advanced Materials Research, 2011,Vol. 322 ，pp 81-84
[3] Wang Yixuan, Wang Ying, Liu Xin and Qiu Haifei, Electromagnetic design and dynamic analysis of large turbo-generator, Journal of Energy and Power Engineering, 3(12)(2009)19-28

Local flame image processing module is used to collect flame image of roller kiln burning zone and to segment it such that the data of the flame area and material area is got by using fast FCM(fuzzy C-means) clustering algorithm based on gray histogram[6-7].
According to expert experience, we calculate mean gray-scale , material height , flashing frequency and black area.
According to human visual characteristics, the average value of the flame area and the average value of material area of best effect on color judgment is chosen as flame color and material color respectively.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (No. 61164014 and No. 60974004) the Natural Science Foundation of Jiangxi Province,China (2010GZC0118).
Journal o f Chemical Industry and Engineering(China), vol. 59(2008), p.1839-1842 [5] H.

Harmonic Detection and Suppression of Frequency Doubling of Speed Measuring Radar Based on Closed-Loop Gain Control Qingjiang Jin1, a, Zongtian Liu1,b and Qiuhong Xu2,c 1School of Computer Engineering and Science Shanghai University, China 2Hefei Vocation Science and Technology Co.
In addition, differences between the distances, car shapes and materials will result in randomicity with the system gain and uncertainty with the passive communication channels.
However, in order to realize sensitive detection of far and small cars, the present speed measuring radars mostly utilize high gain circuits, which directly leads to the fact that when some large cars or cars made of special materials are nearer to the radars, reflected signals will be over-intensified immediately and result in distortion.
Journal of Applied Meteorology and Climatology, Vol. 50(10), 2011 [6] R.

Finite Element Analysis of Hydro-Viscous Drive Main Transmission Shaft Using ANSYS Re-feng So1,a, Qian-ming Yang2,b and Xiao-ming Wang2,c 1Department of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Taian, China 2College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, China aSrf7788@163.com, byqm8396@sdust.edu.cn, cwxm0615@163.com Keywords: Hydro-Viscous Drive; main drive shaft; finite element analysis; ANSYS; stress and stain Abstract: The main drive shaft is one of the key component of the Hydro-Viscous Drive device.
Selects third theory of strength [2] to carry on the intensity examination: where：—Axis computation stress (MPa); — Referring factor; —Reverse shear stress (MPa); —Axis anti-curved section coefficient (mm3) According to the metal material of the axis, the admissible bending stress of 40Cr is MPa, while , the driveshaft is safe.
Fig.3 Drive shaft finite element analysis flow chart Parameter definition Drive shaft's material selects 40Cr, the type of material is assumed linear isotropic model, takes the elasticity coefficient is 200GPa, the poisson's ratio is 0.3, material density is 7850Kg/m3, the yield strength is 265MPa.
Reference [1] Chen-guan Wei, Jia-xiang Zhao:The technology of Hydro-viscous Drive (1996) [2] Lianggui Pu, Minggang Ji:Machine Design (Higher Education Press Publications , Beijing 2001) [3] Xiao-gang Zhou, Ming-qang Wang, in:CAE analysis of SGTN-140 type of joint ploughing key component based on ANSYS, edtied by Journal of Mechanical&Electrical Engineering, Vol.27 No. 12 Dec. (2010), 40-44

A.Hoar, Does Geometry Limit Squid Growth, Journal of Marine Science, vol. 57, (2000), pp. 8–14
Jaafar, Design Consideration of Bio-Inspired Water Jet Propulsor for Mini Autonomous Underwater Robot, Advanced Materials Research, vol. 463-464, (2012), pp. 1583-1588
Stewart, “Vortex Rings in Bio-inspired and Biological Jet Propulsion”, Adv. in Sciences and Tech., vol. 58, (2008), pp.237-246
Oh, A Biomimetic Jellyfish Robot Based on Ionic Polymer Metal Composite Actuators, Smart Materials and Structures”, vol. 18, no. 8, (2009), pp. 085002

The promotional effect of lanthanum additive on the apparent electrocatalysis of Ti/(Ru,Ir)Ox electrode Ping Long1,a, Qingfen Li2,b，Likun Xu3,c, LiLi Xue1,d and YongLei Xin3 a School of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China b School of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China c State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao, 266071, Shandong, China alongping@hrbeu.edu.cn, bqingfli@yahoo.com.cn, cxulk@sunrui.net, dxuelili@hrbeu.edu.cn Keywords: Lanthanum; apparent electrocatalysis; Ti/(Ru,Ir)Ox electrode; amorphous phase Abstract.
La is promising candidate, due to not only its promoter effect on both thermal stability and activity for various metallic catalysts[2], but also its known effectiveness for preparing porous materials[3].
Acknowledgments This work was supported by the Youth Science Foundation of Heilongjiang Province, China (QC06C021).
Boodts and L.A. de Fariao: Journal of the Brazilian Chemical Society Vol. 14 (2003), p. 388 [9] T.A.F.

Materials and experimental Three Mg-Al-Zn alloys with various Al/Zn ratios (Table1) were made by gravity casting in sand mold, solution-treated at 380-425°C for 24h, followed by ageing at 150°C and 200°C respectively for maximum 360h.
Acknoledgements A project financially supported by the National Natural Science Foundation of China, at No.50171027, and by the Natural Science Foundation of Guangdong Province, at No.013005.
(SAM) Froes, Advanced Performance Materials, Vol.5(1998), P.201
Muddle, The Chinese Journal of Nonferrous Metals, ,Vol.13(2003), .P15.