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When welding, the joint must have good mechanical properties, as well as the combination property of compound steel, reduction of anti-corrosion, crack resistance and electroconductibility of the joint must be prevented.
According to existing data, thickness of the hardening zone of intermediate layer can reach to 2.5 mm, this hardening zone is very sensitive to coldcrack, and is easy to produce crack
According to the existing data, when sheet material is thin, I-shape groove is used; When sheet material is thick, v-shape, u-shape, x-shape or v-u combined shape groove is used.

As can be known, the diesel particulate filter (DPF) is considered a very effective solution to attain the PM emission standards, since they have proved to meet serious diesel engine pollution reduction limits.
Meanwhile, as can be seen from experiment results, the adsorption number density increases with pressure, which agrees with the simulation data basically.
(2) The simulation results were validated by the engine test bench and the results showed that the experimental adsorption number density of nanoparticles increases with pressure, which agrees with the simulation data basically.

The raw data of Figure 2 were then used to calculate the water vapour permeability according to Eq. (1).
The water vapor permeability of PETg/omMMT nanocomposites (Ps) normalized to permeability of unfilled PETg (Pp) is reported in Figure 3 as a function of the omMMT volume fraction (Φ). 0.88 0.90 0.92 0.94 0.96 0.98 1.00 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 PETg/omMMT nanocomposites experimental data Bharadwaj model prediction Ps/Pp 1-Φ Figure 3: Water vapor permeability of PETg/omMMT nanocomposites (Ps) normalized to permeability of unfilled PETg (Pp) versus omMMT volume fraction (Φ).
The introduction of an impervious inorganic phase that increases the tortuosity of the path of a low molecular weight penetrant permeating through the nanocomposite, is responsible of a water vapour permeability reduction.

Note that best values of FWHM are obtained for GaN with N-polarity, and they compare favorable to data in literature on SiC [6].
On the other hand, the emission is more intense for N-polar GaN than for Ga-polar material, which suggests a reduction in the density of non-radiative recombination centers.
HRXRD and PL data show that high structural quality is achieved in both polarities.

(data not shown) The amounts of PIPAAm-grafted onto PHBV films and mats, which were determined by comparison with ATR-FTIR standard curves, were 6.49 and 6.52 µg/cm2, respectively, consistent with high surface content.
(data not shown) This result indicates that PIPAAm surfaces, which are hydrophobic at the higher temperature, became markedly more hydrophilic in response to a temperature reduction due to spontaneous hydration of surface-grafted PIPAAm. 2000 1800 1600 1400 1200 1000 ester 1720 cm-1 Amide I 1650 cm-1 Wavenumber (cm-1) a) b) 2000 1800 1600 1400 1200 1000 ester 1720 cm-1 Amide I 1650 cm-1 Wavenumber (cm-1) a) b) Figure 2.

Through mathematical models, the dynamic behaviour of the specific vehicle model can be investigated via simulation tool without the need of real test which resulting much faster development time, variable data testing as well as cost reduction.
Fig. 2: Vehicle model in MATLAB SIMULINK environment Model Validation Results The accuracy of results obtained from simulations depends on the realism of the model where measured data used to define the model parameter.

For this calculation model, it can be got by calculating with geological data and the design drawings: taken the pile cap bottom as maximum scour line, l0=0m, elastic modulus of concrete , the parameters of auxiliary pier pile base and pylon pile foundation are list in Table 1.
Put the data into the formula 2, it can be obtained respectively: embedded depth of auxiliary pier pile and main tower pile both in the range of 3 to 5 times of the diameter, while modeling take embedded depth of auxiliary pier pile H=6m; embedded depth of main tower pile H=12m.
Conclusion Through analysis self-anchored cable-stayed suspension bridge of two calculation modes between consolidation bottom of tower and considering pile-soil-structure interaction, we can obtained the following conclusions: (1) Because of reduction of integral rigidity of structure, while vertical seismic inputting, longitudinal displacement of middle main span and main tower top decrease obviously; with a 31% decreasing amplitude in the middle of main span and a 13% at top of tower

With the development of automobile, the demands of the reduction of vehicle weight are rapidly increase.
The results of six sets tensile data are shown in Table 2.
The experimental data of strength tests with damaging are shown in Table 3 and Table 4.

The experimental data are perfectly described by the spin Hamiltonian with S = 3/2 and corresponding transition rates [8], as shown by the solid lines in Fig. 3(a).
In contrast to VSi(V2) and VSi(V3), for the Frenkel pair VSi-Sii we observe a reduction of its zero-field splitting of ca. 50%, from 0.6 down to 0.3 GHz when the temperature increases from 10 to 320 K.
Experimental data are shown by symbols, the solid and dotted lines correspond to the calculations for S = 3/2 and S = 1, respectively.

Boundary value problem of moving electromagnetic field The basic data of the generator are showed in Tbale 1. 20 different design schemes of stator slot skewing degree are calculated,in these schemes, the variation range of stator skewing degree from 0 to1 slot,the change step length of the stator slot skewing degree is 0.05 slot.
By coulomb norm ▽·A=0 and the boundary condition of the problem region, the 2D boundary value problem of nonlinear time-varying moving electromagnetic field for the generator is then obtained: (2) Table 1 The basic data of the generator Parameter Value Rated power (MW) 36 Rated voltage (kV) 10.5 Power factor 0.92 Number of slots per pole per phase 11/2 Fig. 1 The problem region and meshes of electromagnetic field B.
(a) The HDF (b) The main voltage harmonics Fig.4　The HDF and main harmonics distribution at no-load From the Fig.4,it can be seen that the different skew degree of stator slots can lead different results of HDF reduction.