Search results

It is apparent that Eq. (1) may be used to calculate the reduction in radius at the grinding point for every step when the values f the other three, i.e., feed-in, reduction in radius at blade contact point, and shoe contact point, are already known.
Consequently, 360 data regarding 360° of radius reduction can be obtained whenever the calculation of a whole revolution (360 steps) of workpiece has been finished.
The workpice profiles and roundness are then calculated from data regarding 360° of each revolution, leading to the obtaining of the final profile and roundness of the workpiece after grinding for N revolutions when the grinding cycle has been completed.
The average value of the three roundness data is then regarded as the roundness under the given geometrical arrangement.
After resetting the geometrical arrangement and performing the same grinding and measuring processes as described above, other roundness data are obtained for the corresponding conditions.

Skottene and Rian [2] studied NOx formation numerically in the premixed hydrogen flames and compared them with the experimental data.
Li et al. [8] has proved the accuracy of the kinetic mechanism for NOx emission; compared with experiment data, the difference for flame temperature and NOx emission are within 30 K and 2 ppm respectively, which are within the experiment uncertainty.
Effects of stretch rate on NO production Fig. 4 shows the NO formation data with different stretch rates.
NO formation data with different stretch rates. (466.67, 800, 2000, and 8000, respectively) For reaction NH + O = NO + H, according to the Arrhenius reaction rate (1) where the empirical parameter b and the activation energy Ea both equal 0.
The reduction of the integration term of H2 consumption is caused by the reduction of reaction rate due to lower temperature and the combustion zone thickness as stretch rate increases.

The control data map will be calibrated (mapping) to ensure best combustion with suitable air-fuel-ratio (AFR) experimentally.
The resulted data map then will be used as a look-up table, which will be programmed within the ECU [1, 2].
The results show great reduction in fuel consumption, ranging from 33% to 50% as shown in Figure 4, when the engine was equipped with the FAI semi-direct injection system.
And also the reduction of unburned HC is obvious (in Figure 4 the HC was sampled after CVS dilution of the exhaust gaseous and the number is in microgram per second).
(2) The incorporation of semi-direct injection fuel system contributed towards the improvement of engine performance and the reduction of unburned HC emissions

As an economical and effective method for CO2 reduction, the resource utilization of CO2 has aroused wide concern from academe and industry.
In order to evaluate the resource utilization of products, the product samples had been analyzed through an ion chromatograph (Metrohm 792, Switzerland), from which, formats was confirmed as the main reduction product with the average concentration of 4.67×10-2 mol·L-1.
Therefore, the reduction of CO2 by M may occur under atmospheric pressure [14].
The linear regression equation of had been derived by substituting the relevant data of Figure 1 into eq. 7b, and the rate constants could be acquired from the corresponding slopes.
According to the data in columns 2-4 in Table 1, the rate constant rises with increasing temperature from 298K to 318K, showing a positive temperature effect.

The model of the load curve method is simple but requires a lot of measured data and complex calculations to complete.
The former two phases should maximize the amount of reduction and keep loading balanced.
The third phase should reduce the amount of reduction and keep the shape optimal.
Simulation In this paper the data used is collected from the scene.
The first few frames can have a sufficiently large amount of reduction, and the later frames can keep the shape optimal to meet the production requirements.

Reductions in their size and weight are vital for cost reduction of power conversion systems.
The value of 2.01 defect/cm2 was estimated from obtained data yield assuming Seed’s Yield Model (Fig. 5).
Chopper circuit for switching tests Fig. 6 shows the process capability for 2.5x2.5 mm2 PIN diodes assuming normal distribution of measured breakdown voltage removing all less than 8kV data from evaluation.
The reduction of material properties variation from wafer to wafer and across wafer is critical for SiC technology to achieve similar to Si technology maturity.

The analysis of diagnosis signal The vibration data are collected by using an acceleration sensor.
The relationship table between failure frequency and rotation frequency Rotation frequency Rolling element fault frequencies Inner fault frequencies Race fault frequency 1 4.7135 5.4152 3.5848 With Table 3, we can calculated follows data.
So we should do noise reduction, then do the envelope demodulation analysis.
Noise reduction before and after comparison shown in Figure 4.
Figure 4 Noise reduction before and after comparison chart The wavelet analysis of the filtered signal In the paper, we do 3 layers wavelet decomposition via db5.

Experimental 2.1 Experiment materials Glazed hollow bead: density for 178kg/m3, particles grain diameter for 0.1~2mm, thermal conductivity coefficient for 0.028~0.048W·(m·k)-1, melting temperature for 1200 ℃; cement: 42.5R General Portland cement made from Shanshui factory; foaming agent: laboratory homemade; foam stabilizer: laboratory homemade; waterproof agent: emulsified stearic acid waterproof agent and methyl stearate alcohol organosilicon waterproofing agent; early-strength agent, and water reduction agent were also applied to this experiment. 2.2 Experiment methods Through preliminary experimental study, the content of foaming agents, foam stabilizer, early-strength agent and water reduction agent are 7%, 6%, 2% and 1%，respectively.
Accurately weigh the raw materials, mix the cement, early-strength agent, water reduction and other solid materials together at first.
Results and discussion 3.1 Effect of different waterproof agent and content on performance of foamed thermal insulation materials Influences of emulsified stearic acid waterproof agent and methyl stearate alcohol organosilicon waterproofing agent on water absorption rates of foamed thermal insulation materials are shown in table 1.As for the samples with emulsified stearic acid, analysis the test data in table 1,we can find easily that with the increasement of emulsified stearic acid, the 2h, 24h quality of water absorption of samples are gradually reduced, eventually tends to stable.
Table 1 Test of samples’ water absorption No. 2h water absorption 24h water absorption No. 2h water absorption 24h water absorption S0 46.43% 91.97% S0 46.43% 91.97% S1 36.69% 78.67% T1 28.29% 72.28% S2 28.51% 63.58% T2 22.58% 55.78% S3 23.45% 52.34% T3 17.33% 41.65% S4 18.57% 44.67% T4 14.56% 32.63% S5 17.23% 42.79% T5 13.96% 31.23% As for methyl stearate alcohol organosilicon waterproofing agent, through the data change from table 1, we can see that with the increasement of methyl stearate alcohol organosilicon waterproofing agent, the 2h, 24h quality of water absorption of samples are declined sharply, eventually tends to stable.

Taking into account the available data on significant fracture propagation along interphase boundaries (more than 30%), it can be concluded that in this case the role of thermal stresses in phases at the hard alloys’ strength and durability determination is also significant.
This is substantiated by the good correlation of the obtained data with hard alloy maximum performance temperatures obtained by Artamonov E.V. as a result of experimental studies of the impact resistance dependence from temperature (Fig. 1).
The decrease of its values in the first diagram section is due to a smooth reduction in the material hardness (in this case, its toughness is almost constant).
The further growth in the second diagram section is due to a significant toughness increase (at smooth reduction of hardness), a further sharp value decrease is explained by the intensifying hardness reduction (at almost constant toughness) and further toughness reduction.
By analyzing the data of graph or table, it is necessary to find the temperature, at which the value of the cracking resistance (fracture strength) criterion for carbide cutting blades is the highest.

As the concepts of energy savings and carbon reduction are becoming more and more important, the present study attempts to use ultrasonic output of lower energy (10 W in 850 mL of solution) to understand whether a threshold value exists for the additive effect between the two reactions, and attempts to clarify the causes of the additive effect.
The results show no significant reduction in color and total organic carbon under acidic, neutral and basic conditions.
Therefore, the effect of direct photodegradation was not taken into consideration in the following experiment, and did not affect the interpretation of the data acquired.
The results indicate that the reductions in color and total organic carbon were approximately 40% under acidic conditions and the following experimental data are based on these data.
Effect of Fe ions on color residual rate Conclusion Nowadays, the concepts of energy savings and carbon reduction are increasingly vital.