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From the results, it was observed that after post-sintering heat treatment there was a reduction of α-SiAlON phase and increase of β-Si3N4 phase, with consequent changing in grain size, decrease of fracture toughness and increase of the Vickers hardness.
This data can be explained assuming that the homogeneity range of the α-SiAlONs toward Si3N4 is at higher temperatures when using additives rich in Y2O3.

Kinetic and thermodynamic data of 5-HMF production and decomposition were also determined, providing insights into optimizing process conditions for efficient conversion of lignocellulosic biomass into this critical precursor for bio-based plastics.
By advancing strategies for biomass-derived alternatives to fossil-based plastics, this work contributes to achieving SDG 9 (Industry, Innovation, and Infrastructure) through the development of sustainable industrial processes, SDG 12 (Responsible Consumption and Production) by promoting circular use of agricultural residues, and SDG 13 (Climate Action) through the reduction of carbon-intensive plastic feedstocks.
The processing of the data was done with the help of a software application (GC Solutions v2.4, Shimadzu, Japan) where recorded readings of the peak areas were noted.
After sun drying and oven drying, the raw material was subjected to size reduction where the mean particle size was measured to be 379.49±22.69 µm.
In regression analysis, a negative R2indicates that the model performs worse than simply predicting the mean of the data, meaning that the residual sum of squares exceeds the total sum of squares.

Through the data from expert investigation questionnaires, the scores of nine assessment indexes reflected accident emergency management system performance were obtained.
Gao, Chemical industry park have bright future in saving energy and emission reduction (in Chinese), Econ.

Finally, the metabolic activity of microorganisms such as photosynthesis or sulfate reduction increases the system alkalinity via OH- production and sulfate ion replacement by bicarbonate ion, thereby increasing the saturation state of the solution and provoking carbonate mineral precipitation.
The third and deepest black layer is the zone of heterotrophic sulfate reduction and anaerobic degradation of organic matter.
Nonetheless, in light of new data this last species does not include Rhodovulum sp.
The photosynthetic process involves the reduction of CO2 to carbohydrates and removal of electrons from H2O, which results in the release of O2 (the process is known as oxygenic photosynthesis).

The reported advantages of MIs include simplification of orthodontic treatment, elimination of inter-arch mechanics for correcting sagittal discrepancies, reduction of treatment time, and the ability to move entire quadrants rather than individual teeth in orthodontic clinical practices [7- 11,14].
The CBCT data were stored in DICOM format before importation to the Materialise Interactive Medical Image Control System (Mimics) software version10.01 (Materialize Software, Leuven, Belgium) for three-dimensional images construction.

The velocity of the flow and its rheological nature are essential parameters for the reduction of instability in the canal.
Jiann-Cherng Chu et al [22] validated their results with those of the experimental and the empirical correlation data for different values of Dean's number and Reynolds number on the flow in a curved rectangular microchannel.

The XRD results revealed a reduction of crystallinity with an increase in filler content, thus indicating that the composites are semi crystalline in nature.
XRD data revealed that fly ash existed in mullite phases (JCPDS file no 15-0776).

The monotonic tests were conducted at supersolvus temperatures of 1066 or 1177°C and strain rates of 0.005 or 0.1 s-1 to a height reduction between 2:1 and 4:1; following compression, each sample was either water quenched immediately or allowed to undergo metadynamic recrystallization (MDRX) /grain growth for times between 30 s and 30 min.
In order to simulate production cogging practices, interrupted tests were performed at identical test temperatures and strain rates (to a total reduction of 3:1) using dwell times of 20, 30, or 60 s between imposed strain increments of 0.15.
Using this single set of coefficients, the average error in the predicted recrystallized fraction in both the dynamic and metadynamic regimes of wrought material (in comparison to the data of Shen, et al. [9]) was ~7.3 pct.
Microstructure developed in a double-cone sample of Waspaloy ingot material upset to a 2:1 reduction at 1066°C, 0.1 s-1 and then held at temperature for 30 min. prior to water quenching.

To identify the components for which it is necessary to predict spares, there are several data and criteria.
- The simple exponential smoothing gives importance to recent data in a forecast.
The weight decreases exponentially with respect to the age data.
Step3: At each time to non-zero value, give a demand value randomly selected in all non-zero demands data.
Using feedback data, the model parameters are defined by maximum likelihood estimations.

Despite the large reduction in σc and Kc, Fig. 11 shows that the flexural strength did not significantly change with increasing volume fractions of porosity, and actually increased as the volume fraction of porosity in the thin compressive layers was > 0.40.
For a normalized off-set separation distance of 1.4 (not shown) the two cracks did not coalescence, yet these specimens did exhibit a reduction in threshold strength as reported in Fig. 14.
Observations, such as the one shown in Fig. 14 indicates that their separating compressive layer did stop the cracks before they further extended to coalesce as predicted by the FE studies. 200 μm indent crack Fig. 14 Reduction of threshold strength when two cracks are introduced into adjacent thick layers, separated by an off-set distance, x.
As shown in Fig. 14, for normalized off-set values < 1, the normalized threshold strength is approximately 0.7; this data shows that when the off-set value produces strongly interactive cracks, the threshold strength is reduced by the inverse square root of the number of interacting cracks within adjacent thick layers.