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For example, in fixed boundary condition, deflection function is: (4) According to Eq. 1 and Eq. 4, buckling stress is: (5) Where, - elastic modulus, - Poisson's ratio, - thickness of cylindrical shell, - radius of tower.Considering the defect of tower opening, there are some amendments by GL2010, which introduce buckling reduction factor C1, namely: (6) Where, C1 according to the form of opening, take: (7) Where, the value of A1 and B1 according to
By analysing the data in Table 2, buckling value under various loads are got,which are less than mechanical critical value of tower.

Diffusing of Fe atoms in Cu lattice leads to increase in its lattice constant. it means that lattice parameter of Cu increases which leads to the reduction in degree of peaks.
One of the samples which was produced at these data shows a crystalline size of 23 nm and microstrain of 0.0031.

The data were taken from the web page of the National Institute of Standards and Technology (NIST).
In addition, notable reduction in the tensile strength and the strains at break of the PPy films actuated in the electrolyte solutions containing methanol were also observed.

Then the length and opening degree increased and a certain number of new fractures and crack produced [8].The reduction of effective volume stress can improve permeability and the more crack can increase and improve migration path.
It can be seen from calculating data that the extraction speed of conventional drilling mining and hydraulic-cutting seam is 40m3/h and 65m3/h respectively.

GOF values between the observed and calculated data below 1.3 are usually considered to be quite satisfactory [8].
The continuous formation of interface membrane led to the reduction of activable Li+ and ions diffusion [8].

The oxygen vacancies occur either from substitution of A3+ by A2+ or from the partial reduction of B3+ or B2+ to B2+ and B3+[1].
This experiment were performed on a Bruker D2 phases at scan rate of 0.2°min-1 and a range 10°<2θ<90° and the diffraction data was analyze using Xpert High score plus software.

A further increase of welding current resulted in a reduction in joint breaking force as the recrystallization continued to progress.
Furthermore, too much current which forms a weld nugget or excess oxidization on the surface of wire is believed to lead embrittlement of joint, resulting in large data scatter in joint strength.

In addition, we developed a hybrid progressive die that included hot working and room-temperature working for cost reduction [13-17].
The data of press-formed article using the 100,000 times square-cup drawing method is also plotted in Fig. 3.

Unfortunately, no quantitative data are yet available on the way that Nb affects the microstructure and mechanical properties of the air cooling low carbon FGBA/BG steel.
The cumulative reduction was 50%(as shown in Fig1).Mechanical properties test was performed on a universal tensile testing machine of IVSTRON 4206.

From the data obtained from DTA and TGA curves, samples in pellets shaped were prepared for melting in alumina crucibles in temperature range of 1300-1550°C at hold time up 4 hours, using an electrical vertical furnace.
Reductions in the mass with the increase of the temperature were observed.