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The variation of voltage signal across a resistance connected in series with sensor was monitored and recorded with a computer controlled data handling system (Fig. 4b).
Fig. 4(a) Schematics of gas sensor testing chamber Fig. 4(b) Schematics of data acquisition system 6.3 Structural Analysis.
Plots of X-ray diffraction data of tin dioxide samples prepared at 5oC and sintered at 400, 600 and 800oC, respectively, are shown in figure 5.
At low temperature (5 oC in present study) a higher supersaturation leads to large reduction in Gibbs free energy.
This energy reduction appears as an increased surface energy favouring continued nucleation with smaller sizes.

In this paper, the hot deformation behavior of GH4169 superalloy were investigated at temperature of 900-1020°C and at strain rate of 0.001-0.1up to a 60% height reduction of the sample using isothermal constant strain rate compression tests on process annealed material.
The load-stroke data obtained in compression were processed to obtain true stress-true strain curves using the standard method.
The absolute errors of more than half of the investigated data are less than 10%.

Verification of the proposed approach is based on statistical distribution of the measured surface roughness data.
There are few data about how any active surface and its morphology do affect on process of the material shaping into definite product.
Advantage of such a progress is that it enables to measure data resulting from milling operation.
Distribution of all the measured Rz data are compared in Fig. 6, where two limiting cases are shown.
Though Rz data in the 3D contour milling produce similar distribution of the machined surface as that of Morphed Milling, a disadvantage of the 3D contour milling is found out in the very high mean data of about Rz=8.8 μm.

As bought steel is subjected to normalizing treatment which is taken as datum for analysis.
It may be due to relaxation of crystal defects and beneficial reduction in the tetragonality of martensite by controlled diffusion of carbon from the martensite cell9.
All dual phase conditions show lower toughness, but tempering of dual phase improves the toughness by substantial amount, it is due to the reduction in tetragonality of martensite cell, relaxation and elimination of crystal defects10.

The displacement and force signals are acquired by AD data acquisition card and then are sent to industrial computer.
In certain working frequency, maximum position goes up after a sharp reduction as the axial displacement of the spool of 2D valve increases, which exists an inflection point.
In this process, maximum position of vibration goes up after a sharp reduction as the axial displacement of the spool of 2D valve increases.

Production of homogeneous bearing steel is expected to be favourable for the reduction of distortion potential of the material.
The total area reduction ratio is 5 to 6.
The large distortion and scattering of the measurement data are probably caused by the inhomogeneous quenching of rings in the oil bath, which is mainly due to nonuniform heat transfer process and unbalanced cooling behavior.

Geometric modifications in the front mass of the transducer, including exponential cross-sectional area reduction and slotting, are used to increase the torsionality, eliminate the excitation of unwanted bending modes, and reduce ultrasonic energy losses by reducing the number of inter-component boundaries.
Response data from the same locations were extracted from the numerical model in order to compare results.
The combination of exponential area reduction and helical slotting in the front mass is shown to be an effective technique for the development of longitudinal-torsional vibration, delivering high responsiveness and torsionality without bending modes interfering with the desired output.

This is equivalent to a 1.3 percent reduction from the 2006 baseline level of 2588.8 million tons [3].
Emission reduction is still a long term task for environmental protection [4-6].
In present work, we do the field experiments and collects mass of data.

After thorough cleaning and brushing, the Al and Al(Sc) sheets were mechanically stacked and held for 5 min at 350°C in a preheated air circulating furnace and rolled without lubrication in a single-pass to 50% reduction using a two high laboratory rolling mill.
After six cycles and a final rolling pass of 50% reduction, 0.5mm thick sheets containing 64 alternating layers were produced.
Standardized tensile test pieces (ASTM-E8) with nominal dimensions of 50 × 5 × 0.5 mm were tested using an INSTRON-1185 Universal Testing System and the tensile data was analysed using Origin-6.0 software.

Result and Discussion Table 1: Data of pH from both retting tank Day Water Type D0 D1 D2 D3 D4 D5 D6 D7 Tap Water 7.4 5.9 5.7 5.7 5.5 5.3 5.1 5.3 Bacillus cereus seeded water 7.6 6.3 6.0 5.9 5.6 5.5 5.2 5.7 Figure 1: Changes of pH for tap water and B.cereus seeded water during retting period.
From the result, the pectinolytic enzyme secreted might be effective on alkaline as the reduction of pH was huge from day 1 to day 0.
Supposely, the B.cereus seeded water have higher pH reduction compare to the tap water retting.