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The electromagnetic module exchange data with the acoustics module by coupling between them, then by performing mode analysis, the effective refractive index of the fundamental mode corresponding to the deformed structure is calculated.
We attribute this difference to the use of the real structure in [2] that may contain imperfections allows reduction of the NR of the HC-1550 compared to the ideal structure that was used in the simulation, in addition, in the calculations we used air-filling ratio of 96% which is higher 6% than that used in [2] which is expected to contribute to higher NR.

So it provides higher requirements of the exhaust system in noise reduction.
The testing system is made up of excitation system, signal measurement and data acquisition and analysis system.

Based on the relevant statistical data, the total output of nonwoven materials in China was 1.87 million tones last year.
At the same time, the improvement of tensile strength can reduce fiber costs by the reduction of web weights.

With a series of techniques, such as scale decomposing, topological sorting and index reduction, etc., it is possible to eliminate most equations and transform the original equations system into subsystems which can be solved in sequence.
A graph ),( EBG = is called coupling blocks dependency graph (BDG), whose vertices B, called coupling block, is a subset of tightly coupling equations that can be solved independently, and the edge EBB ∈),( 21 indicates the data dependence between vertices B1 and B2.

The dissolution mechanism of the PER within this AAC™ blend (Fig.3) was explained by the ability of the chemistry to convert PER to water soluble species by four main mechanistic pathways: reduction, hydrolysis, dissociation and defloculation.
Based on all of the available data it was concluded that an optimal solution would require a base, HDA® and chelating agent with the properties exhibited by Reagent A.

The vibration can do great harm to the compressor, including the instrument failure and the reduction of the valve sensitivity and the compressor’s volume efficiency.
At the same time, through the LMS data processing front-end, the signal is transmitted into the software LMS Test.lab and then is analyzed.

Fig. 3: Types of ceiling construction Fig. 4: Fixing of the panels Statistical data of the timber - concrete ceiling supporting construction: - Surface of the plate 10.8 m2, weight 2400 kg
REDUCTION OF VIBRATIONS AND IMPACT NOISE THROUGH LANDING BLOCKS.

The simulation could provide accurate and original data for titanium alloy bar rolling process.
In pass rolling, because the reduction cannot be more precisely determined, the present formula for calculating the rolling force, such as S.

SF260 is the poly silicon fluorine thinning agent and its main effect is viscosity reduction.
Table 1 Heat endurance contrast data table of the organo-sillica system after the content of GWJ is increased Formula number of drilling fluid PV/[cp] YP/[Pa] YP/PV API filter loss 1# Before hot roll After hot roll 50 29 29 13 0.25 3.5 2# Before hot roll After hot roll 43 25 22 8 0.32 3.8 It can be seen from Table 1 that YP and PV of the system get lower when the content of GWJ is increased from 0.5% to 1.0%.

Although no data are available as to the percentage breakdown of sources of scrap, it is estimated that less than 2% of ingot production is derived from old scrap.
Scrap is initially melted without virgin metal by some zirconium ingot producers, using vacuum-arc-reduction melting practices.