Search results

The FESEM images on Fig. 1 show crystalline films of prepared product on the first substrate.
(b) (a) Fig.1 SEM images of crystalline MoO3 microfilms (a), and at higher magnification (b).
The operating of Raman spectroscopy of MoO3 nanorods-like clusters showed principal peaks of 992.4, 818.7, 666.4, 479.0, 336.6 and 284.5 cm-1, respectively and corresponding with previous papers [9, 11-12].
References [1] J.
Laux, Energy efficiency in nanoscale synthesis using nanosecond plasmas, scientific report 3 (2013) 1-7:1221, DOI: 10.1038/srep01221

The nominal chemical compositions and mechanical properties are given in Table 1 and Table 2, respectively.
In these conditions, fatigue damage is generally caused by plastic strain, and can be described by the Coffin-Manson law [1], shown by the power law relation in Eq. 1:
Table 4 Coffin Manson parameters of the materials Material c 15H2MFA 1,0479 -0,7375 08H18N10T 0,2243 -0,4290 a.
Acknowledgement The publication is supported by the TÁMOP-4.2.2.A-11/1/KONV-2012-0027 project.
References [1] L.

Fig. 8(a) shows the step-loading routine for PTFE/MoS2-1 coating.
References [1] S.R.
Lett. 25(1) (2007), P. 71-77
Phys. 42, 104001 (2009), P. 1-8
A 83A(2) (2007), P. 471-479

Fig.1 reveals a kind of 6-unit joint.
References [1] D.S.
Yu: Building Construction, Vol.31 (2009) No.12, p.1019 [3] CEN:ENVI 993-1-1 Eurocede 3, Design of Steel Structure: Part 1.1 General Rules and Rules for Building [S],1992 [4] T.
Li: China Patent PCT/CN2004/000479. (2004)
Hu: Journal of Building Strutures, Vol.29 (2008) No.1, p.10 [10] F.

Mechanical Model and Calculation Method (1).
Mechanics analysis model is shown in figure 1. δ is load equivalent circle radius(δ=10.65cm) , hi is the thickness of the layer structure I, Ei is the modulus of resilience and μi is poisson ratio.( i=0, 1,…, n-1, n is pavement structure layer.)
Figure 1 Pavement structural mechanics analysis model (2).
Modulus of selection shall be carried out in accordance with the table 1.
References [1] Ruibo Ren.

in addition to the automobile parts [1-3].
In this paper I introduce our research results on applications of (1) severe working process to AZ61(Mg-6%Al-1%Zn) alloy, (2) hot rolling to Mg alloys containing more than 3.5%Al, (3) hot extrusion to AZ91(Mg-9%Al-1%Zn) alloy in order to satisfy above-mentioned demands. 500nm Mg17Al12 : 50～100nm Average grain size: 0.5 Average grain size: 0.5μμmm Fig.3 TEM images of the specimen ECAE-processed at 175°C.
Such a microstructural change from the early stage of the deformation may lead to grain boundary sliding, resulting in high elongation at high temperatures. 1.8 2.0 1.4 1.0 0.8 0 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 2.02.53.03.54.04.5 r Δr r Δr 1.6 1.2 0.6 0.4 0.2 Extracted direction (°) 04 59 0 0 0.5 1.0 1.5 2.0 3.5 2.5 3.0 Rankford Value, Rankford Value, rr r = εw/εtr r = = εεww//εεtt 2.0Al-0.7Zn 2.5Al-0.8Zn 3.0Al-1.0Zn 3.5Al-1.2Zn 4.0Al-1.3Zn 4.5Al-1.5Zn Al content (mass%) IsotropicIsotropic Δr r Fig. 10 Lankford values (r- value) of each alloy (top) and changes in average r value and Δr with Al content of the investigated alloys tensile-tested at 498K under a strain rate of 1×10-3 s-1.
References [1] Y.
Forum, Vols. 475-479 (2004), p.469 [17] M.

Fig.1 Auxiliary frame finite element model Welded joints adopt SHELL unit (fig.2), bolts adopt RBE2 and CBEAM unit (fig.3), welding spots adopt CWELD unit for simulation (fig.4).
Fig.2 Welded joints adopt SHELL unit Fig.3 Bolts adopt RBE2 and CBEAM unit Fig.4 Welding spots adopt CWELD unit Auxiliary frame modal analysis Cars drive in the process, the auxiliary frame on incentive is mainly composed of two parts: 1.
Nastran is the slover for auxiliary frame modal analysis, the modal results of the first six order are as shown in table 1.
Table 2 Calculation results of modal optimization order modal shape Frequency ( Hz ) target value ( Hz ) conclusion 1 First order torsional modal 203.9 200 achieve the optimization goal 2 First order bending mode 249.0 245 achieve the optimization goal 3 bending mode 314.3 310 achieve the optimization goal 4 ntegral + local mode 345.0 340 achieve the optimization goal 5 Local mode 427.2 425 achieve the optimization goal 6 Complex modal 479.0 460 achieve the optimization goal According to the results above, the auxiliary frame after structure optimization, the first order modal frequency above 200 Hz, and the other order modal frequency is more than the target values.
References [1] Liu Xin-tian, Huang Hu,Liu, Chang-hong etc.: Static Analysis Of Automobile Frame Based On the FEA.Journal of Shanghai engineering technology university. 21(2), p.112-116(2007)

Experimental Investigations on Aluminium Ultrasonic Welding Parameters APETREI Lăcrămioara1,a, RAȚĂ Vasile1,b, RATA Ruxandra2,d and BULAI Elena-Raluca1,c 1 "Ștefan cel Mare" University of Suceava, Universității Street, 13, 720229 Suceava, România 2 Vrije University Brussel, Pleinlaan 2 1050 Brussel, Belgium aapetreil@yahoo.com, brata.v@fim.usv.ro, ccioancaraluca@fim.usv.ro, cruxandra@avocatrata.be Keywords: aluminium sheets, ultrasonic welding, metallographic analysis, microhardness.
The static force is acting perpendicular to the working pieces and the dynamic force in parallel with them [1].
Ultrasonic Welding Experimental Conditions The experiments were carried out on an ultrasonic welding equipment (Fig. 1) used for metallic materials, characterized by an piezoceramic generator, with 20kHz frequency, electropneumatic actuation, and digital command and control Fig. 1.
References [1] L.
[3] Kuen Ming Shu, Yu Jen Wang, Chi Wei Chi, The Design of Multiple Function Acoustic Horns for Ultrasonic Welding of Plastic, 2013, Applied Mechanics and Materials, available at: http://www.scientific.net/AMM.479-480.329, accessed: 04.01.2014

(1) Figure 1.
Table 2: Biodiesel yield at various operating conditions Run Catalyst weight (g) Molar ratio Temperature (ºC) Catalyst type %Yield at 30 min %Yield at 45 min %Yield at 60 min 1 0.2 1:4 60 KC 8 13 18 2 0.4 1:4 60 KC 9 15 19 3 0.6 1:4 60 KC 9 16 22 4 0.2 1:6 60 KC 10 13 18 5 0.4 1:6 60 KC 12.5 14 19 6 0.6 1:6 60 KC 13.5 14 17 7 0.5 1:4 60 ESC 12.5 17 25 8 1.0 1:4 60 ESC 13.5 17 27 9 1.5 1:4 60 ESC 14.5 18 28 10 0.5 1:6 60 ESC 15 19 27 11 1.0 1:6 60 ESC 16 19 28 12 1.5 1:6 60 ESC 16 17 29 From the results obtained and presented in Table 2, increasing the catalyst concentration was observed to increase the oil yield up to a certain value, but further increment beyond this was found not to have much impact on oil yield.
References [1] A.K.
ARPN Journal of Engineering and Applied Sciences, 8(7) (2013) 473-479
ABUAD Journal of Engineering Research and Development, 1(1) (2018) 49-60

Figure 1 shows the heterogeneous structure of aluminum powders PA-1.
Fig. 1.
Table 1.
References [1] Xin.
In Materials Science Forum. 1038, pp. 468–479