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In order to effectively use these data, at the same time, overcome the above shortcomings, it is necessary for the introduction of data mining technology to the modern remote education system.
According to the different objects of data mining, the web data mining is divided into three categories in general: web content mining, web structure mining and web usage mining.
Pretreatment is divided into data cleaning, user identification, session identification, path supplement and event recognition. 1) Data Cleaning Its purpose is to remove the contents unrelated with data analysis and data mining in log file, such as: removing the records of user failed requests. 2) Subscriber Identity This is the second step of pretreatment.
A focus for researchers now focuses on the technical reduction of the search space.
Data preparation for mining world wide web browsing patterns.

Besides, material flow analysis can reflect the reduction, reuse and resource conditions of socio-economic system through the quantitative measure of material flow.
Realizing the reduction at source, improving the mineral regeneration rate and cycle efficiency is the core of the entire circular economy.
Developing recycling economy is a complex systematic project, which needs abundant fundamental data to support.
Material Flow Accounting (MFA) of mineral resources can provide basic data for the mining circular economy.
In addition, in the case of the data is allowed, we can make the material flow analysis based on mineral units of a certain category.

Set-II: Blanks with 12 mm initial thickness were heat treated at 780°C for 20 minutes, then rolled to 6 mm thickness (50% reduction) and quenched into iced-brine solution or oil to produce similar amount of martensite mentioned in set-I.
Set-IV: Blanks with initial as in set-I were heat treated at 740°C for 20 minutes and rolled to 50% reduction and quenched in iced-brine solution to produce 30% martensite.
rK = rP/BW × (pa) ½ F(a) (5) Results and Discussion Grain Size Effect on rKth: The grain size data at different temperatures and cooling rate is listed in Table 1.
Data from the literature are also plotted for comparison [16-17].
It is evident that rKth decreased with increasing stress ratio, in agreement with experimental data for a wide range of other types of steel [1, 6, 8, 9, and 10].

The experimental data show that an increase of technical foam density decreases foam stability coefficient in the cement paste.
At high revolutions the foam stability coefficient in the cement paste is high compared to other modes, its value ranges from 0.82 to 0.86, and the reduction of foam density is significant.
The experimental data show that the high foam density corresponds to the compressive strength limit not less than 2.53 MPa, the low density decreases the compressive strength limit to 1.27-1.62 MPa.
Experimental data show that by the foam density decreasing, the PB-2000 foam concrete strength starts to fall, reaching a minimal value and then there is a foam concrete strength increasing, from a density of about 80-85 g/l, and the compressive strength reaches maximum values.
For the foam concrete PB-2000 there is a noticeable CCP reduction to 0.4-1.5 when laboratory-scale plant work unit rotation speed is 13210 rev/min.

The percent reduction in area (RA) of 0Cr18Ni9 at different temperature is shown in Fig. 1 (a).
According to the stress-strain experimental data, numerical data of 0.2 offset yield strength of 0Cr18Ni9 stainless steel at temperatures of 800 to 1200 °C are given in Fig. 1 (b).
(a) (b) Fig. 1 Effect of elevated temperature on reduction in area and 0.2 offset yield strength: (a) specimen’s reduction in area versus temperature and (b) 0.2 offset yield strength (σ0.2) versus temperature.
The data of curves based on Eq. 8 and creep tensile test are separately shown in Fig. 7.

DesignBuilder is the chosen software in this study because DesignBuilder provides accurate energy, comfort, cost, and daylighting performance data to help inform and guide your design decisions in addition to the ability to simulate design CFD (Computational Fluid Dynamic) to simulate building natural ventilation flow [15].
Figure 1: Proposed design criteria for sustainable commercial buildings, Source: Authors 5.1 Case study data This study applies the proposed design criteria in designing commercial building at Fifth settlement, Cairo, Egypt where the climate known as hot and arid climate.
This building design achieves all LEED prerequisites, starting from the sustainable site, environmentally material and construction choice, water reduction, energy efficient, indoor air quality and innovative design that consider regional priorities, all these factors are included in the early design stage. 6.
After running the simulations for conceptual design phasis the phase 4 is less in energy consumption by 48% than phase 3, as adding vertical courtyards reduce cooling energy consumption from 858MWh to 456MWh which means 46% energy saving, also, this resulting 40% reduction in Co2 building production.
Buildings Energy Data Book.

Additionally, considering the eggplant slices as slabs of thickness 2L the analytical solution of the difussional Fick's law comes given as [5]: ∑ ∞ =       +− + −= 0 2 22 22 4 )12( exp )12( 8 1 n i eq t L tnD n M M π π (3) where t is the time (s), L is the slice half thickness' (m), Mt constitutes the removed water (WL) or solute gained (SG) amounts (the same expression can be applied to both mass transfers) at instant t, Meq constitutes the previous values at infinite time and Di is the effective diffusivity (m2/s) of water (i = w), or solute, (i = s), (depending on which data are been analyzed).
Then the value of Di was incremented in such a manner that the predicted values of water loss ratio (or solute gain ratio) approached the experimental data.
In all cases, significant initial mass transfer rates were observed followed by a reduction in these flows close to the end of the osmotic process.
Sucrose, as is a higher molecule, is expected to remain mainly in the extra-cellular space while sodium chloride can penetrate into the cell, thus leading to a reduction in the osmotic pressure gradient and reduction in membrane permeability. 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0 1 2 3 4 t(h) SG(kg/kg) 40% 20% 12% 5% Eq. (4) Fig. 2.
Figs. 1 and 2 show that in all the experiments of osmotic dehydration the model represented the experimental data of osmotic dehydration with good accuracy, so it can be concluded that Azuara and Fick's models can be used to predict the osmotic dehydration of eggplant.

It will lead to the reduction of required time for model preparation.
The initial data of model building are the schematic diagram of the complicated system and the description of the work process.
The method determines the transition from the initial data to the result and is the following. 1.
The advantage of the proposed cyclic-modular approach is the reduction of time for model building.
Estimation of the quality and quantity of the parameter changing influence on the character of the rod motion confirmed that it accords to the logic, the prognostic characteristics and data calculation.

The data generated was recorded in a raw data file.
To calculate the reduction in cell viability compared to the blank, the following equation was used.
The cytotoxic data were reported using descriptive statistics.
The reduction of cytotoxicity of Transbond XT with the progression of time after polymerization was also found in other study.[8] The difference in the biocompatibility of the adhesives observed in the present study could have been based on their composition.
Nassar et al. found that increasing the amount of the BHT slows both the rate of the reaction and polymerized conversion.[13] The reduction in the speed of the reaction by BHT could result from the termination of free radicals by the active phenol group in the BHT molecule.

Besides, the significant reduction of the chromium offer results in a drastic reduction of the chromium content of the exhaust effluent.
The data reported are the mean of two determinations.
The data reported are the mean of six determinations.
The data reported are the mean of three determinations.
The possibility of shaving the hide before chromium tannage gives, as first result, a significant reduction of the consumption of chromium based tanning agents on the same basis of pickled weight processed.