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The results provide the scientific basis for using the low A/S calcium aluminate slag obtained from smelting reduction Pingguo red mud producting alumina.
The comprehensive utilization of Pinggou red mud containing high iron can be achieved through the following process: firstly recovery of iron by smelting reduction method, then recovery of aluminum by leaching the calcium aluminate slag obtained in smelting reduction process , and finally recovery of the other elements enriched in the leaching residue.
Then compared with experimental results, in order to provide a scientific basis for alumina production using the low A/S ratio of calcium aluminate slag obtained by smelting reduction of red mud.
In the isothermal and isobaric conditions, the calculation using multi-phase equilibrium calculation program “Equilib” based on the Gibbs free energy minimization. 100g of slag is taken as the basis of calculation, the initial temperature is 1600 ˚C, the pressure is 1atm, and original input data include CaO, SiO2 and Al2O3.
The datums indicate that C12A7 easily dissolves in the sodium carbonate solution, CA has certain solubility, next is C3A, and C2AS is difficult to dissolve.

MALAYSIA sufian@miat.unikl.edu.my Keywords: aircraft maintenance, historical data, maintainability allocation, maintainability prediction Abstract.
This research attempts to utilise the aircraft maintenance historical data and information (i.e. feedback information systems).
There is no doubt that historical data information has the ability to contribute an important role in design activities.
The values of failure rate are collected by using a Non-electronic Part Reliability Data (NPRD) data set [2].
However, to be more accurate, the task time should come from the historical data or records.

In reality, the situation where the experimental data are limited and still need to study the probability characteristic of the fatigue lifetime is regularly encountered.
The prognosis uses fracture mechanics-based fatigue crack growth modeling, along with quantification of various sources of uncertainty, including natural variability, data uncertainty.
According to the experimental data in [14], the interval bounds on Paris parameters (a logarithm to base 10) and are and .respectively.
This section uses the 7th-order SC method to analyze the probability characteristics of fatigue life of a damaged plate in case of limited experimental data ([14]).
An example based on limited experimental data is used to demonstrate the effectiveness of the proposed approach.

It is clear that the present data are in good agreement with the previous results.
For example, the mean drag coefficient for is 0.60 corresponding to about 58% drag reduction.
With the actuator attached to the rear surface of the cylinder, we obtained mean drag reduction successfully.
The reason for drag reduction was shown to be the pressure increase in the rear of the cylinder due to the collision of two wall jets.
Corke, “Plasma actuators for cylinder flow control and noise reduction,” AIAA Journal, vol. 46, Aug. 2008, pp. 1921–1931

The powder produced by the continuous sodium reduction of titanium tetrachloride has a coral-like morphology and low tap density.
Based on data collected from previous milling trials, a model was constructed to predict the expected increase in oxygen, nitrogen and hydrogen as milling time increases.
Another technique, wet-attritor milling, was evaluated in order to minimize the oxygen pickup associated with overall particle size reduction.
Starting particle size distribution data is presented in the table below: Table 2.
The material saw a 44-49% thickness reduction to approximately 0.70-0.90mm.

In order to ensure the accuracy of the data analysis, the different forms of contain Mercury samples method research and analysis, acquired the production data of the system and make check set the options laid a foundation.
Considering the 100000 t/a PVC device has been put into production more than 2 years, in the short term to find PVC device mercury balance, get a complete and credible data have great difficulty.
In the process of the flow of mercury art investigation and inspection, contain mercury wastewater treatment of device check, operation data detection, a total of 12 has more than 700 data.
Prison the data show that the production environment atmosphere within the device testing results is low, far lower than the harmful factors workplace occupational exposure limits part 1 chemical harmful factors "(GBZ 2.1) limit.
Shall check In the preliminary check for process, according to the monitoring data of continuous adjustable the whole scheme, respectively, aiming to take common key monitoring, sustained attention and so on way.

It is important to mention that experimental data were fitted to a modified Cross model (Eq.1) [16].
To better understand how sodium tripolyphosphate effect on the thixotropy of dam sediments, the area between the upward and downward curves is determined using the data analysis of the Trios V4.2.1. 36612 of TA instrument.
Impact of Sodium tripolyphosphate on reduction of friction factor of the dams sediments.
Figure 8 shows the impact of Sodium tripolyphosphate on reduction of friction factor of the dam sediments.
Sasmito, Pressure loss and friction factor in non-Newtonian mine paste backfill: modelling, loop test and mine field data, Powder Technology. 344 (2019) 443-453

Aqueous AgNO3 was infiltrated into the carbon template and reduced to Ag by borohydride reduction reaction, followed by burning of the sacrificial template in air at 500~650ºC.
Berquier et al. synthesized Ag nanoparticles within mesoporous silica film by a chemical route which included ion-exchange with Ag(NH3)2+ followed by reduction process [2].
In our study, Ag metallic sponge with a surface area of 12 m 2/g was synthesized by infiltrating AgNO3 solution into macroporous carbon template, followed by room temperature reduction with NaBH4 and removal of the template at 500~650ºC in air.
The XRD data show reflections at 2.37, 2.04, 1.44, 1.23 and 1.18 ‡ corresponding to the (111), (200), (220), (311) and (222) d spacings, respectively, of metallic silver with a face-centered-cubic unit cell structure [7].
Summary The silver metallic sponges with surface area of 12 m 2/g have been synthesized by depositing Ag nanoparticles on the inner surface of macroporous carbon template, via room temperature reduction step with borohydride.

The theoretical argument is supported by experimental results from synthetic and real data sets.
Introduction It is difficult to apply high dimensional data directly to classification algorithms because of the so-called dimensionality curse [1].
The embedding results of each high-dimensional data point are shown in Fig. 1(b), the projections of the high dimensional data, and are, and, respectively, in the low dimensional space.
Related works Locally linear embedding The LLE algorithm assumes that each data point is represented as a weighted linear combination of its neighbors.
The effectiveness of the proposed criterion has been experimentally confirmed by its outstanding performance on a series of benchmark data sets.

This work was based on the developed methodology for data transfer between ProCAST and Deform-3D programs which allows to export geometry, temperature, residual stress and microstructure of casting [10-11].
The material's properties were used from program's data base.
Reductions per pass was 20 and 25 mm respectively.
As a result of the recrystallization processes, the reduction of the grain size starts [20].
Interval method of bisection for a metrologically based search for the roots of equations with inaccurately specified initial data.