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The objective function of Taboo search algorithm is to maximize the fit value function, the definition of the fit value function is that the reduction of power losses is maximum, that is ： (1) Where, L is the total branch number of distribution system, represents the reduction of the power losses, represents the power losses of the branch l before compensation, and represents the power losses of the branch l after compensation.
Taken the sum of best benefit of the various periods as the objective function value, that is (4) Where, is the length of time, represents the maximum reduction of power losses within, andrepresents the planning period.
Tab1: Resulting data The best installation location Best compensation capacity (kvar) Objective function △P(W) Reduction of power loss during the planning period (kWh) Running time (s) Fixed/ Switching Fixed /Switching Switching time Traditional algorithm 17 21/9 200 500/ 350 0:00 19.98 876.4 3.875 17 2/19 9 200 500/ 100 350 6:00 22.65 Improved Algorithm 9 21/19 5 260 640/ 450 550 10:00 38.64 997.5 5.643 9 21/19 260 640/ 450 16:00 41.25 Conclusions 1) For radial distribution networks, the proposed taboo search algorithm for improving optimal reactive power planning is feasible and effective; the results are different of different neighborhood search within planning period.

Reduced graphene oxide (rGO) was prepared by chemical reduction of GO with ascorbic acid [17].
The electrical resistance change of the graphene/nylon-6 nanocomposites was monitored using a high impedance multimeter coupled to personal computer for data acquisition.
Graphene oxide prior to reduction exhibited prominent IR signal peaks at 3330 cm-1 for O-H stretching vibrations, 1740 cm-1 for C=O stretching from carbonyl and carboxylic groups , 1640 cm-1 for C=C skeletal vibration from unoxidised graphitic domain and 1227 cm-1 followed at 1041 cm-1 for C-O vibrations.
After reduction the IR peaks from GO were reduced and only C=O stretching from carbonyl group at 1653 cm-1 remains.
Vitamin C is an ideal substitute for hydrazine in the reduction of graphene oxide suspension.

XRD data were measured at room temperature from 2θ of 20° to 80° using PANalytical model X’pert3 Powder X-ray diffractometer equipped with CuKα source.
Reduction behavior of the catalyst was studied via a TPR 1100 CE Instrument equipped with a thermal conductivity detector (TCD) in a temperature range of 30 - 800ºC, using 5 vol.% H2/N2 gas mixture.
A broad reduction peak at 267°C and 245ºC was obtained for CZA and CZC, respectively, referring to a single stepwise reduction pattern of Cu2+→Cu+→Cu0 [9].
A lower reduction temperature was observed for Cu/ZnO on the CNTs compared to that of Al2O3 support, suggesting improved reducibility of the catalyst.

The temperature dependence of stress-strain properties more clearly indicated the pronounced impact of tensile properties due to formation of macromolecule cross-linked bonds that affected reduction of deformability due to the reduced mobility of macromolecules.
The effect of thermal expansion with increase of temperature affected a loss of forces between the molecular atoms influencing a notable decrease by more than 8 times of E for pristine EOC, where the values gradually increased at a similar manner (up to 2.2 times) compared to data calculated at room temperature.
Despite the reduction of rupture parameters, none of the composites showed a brittle character that was noted in case other studies of similar composites irradiated by gamma irradiation [7].
A rapid decrease of cross-linking efficiency with increase of MWCNT content above 3 wt.% may be attributed to combined factors of high levels of fillers acting as scavengers and absorbers of radiation energy and the reduction of lamellar connection reducing cross-linking efficiency of macromolecules as noted by Fig. 4.
Correlation between the Length Reduction of Carbon Nanotubes and the Electrical Percolation Threshold of Melt Compounded Polyolefin Composites.

As presented in some literary sources [5-10], the addition of hydrogen results in reduction in the residual constriction and elongation of the low alloy pipe steel, and the values of the tensile strength and yield strength in moderate hydrogen charging do not change significantly.
According to the results of tensile tests of smooth samples filled in an autoclave (for 21 hours in a medium of pure hydrogen gas under a pressure of 9 MPa) there was a decrease in strain of low alloy steel X52 (Fig. 1), which is consistent with known literature data of mechanical tests of pipe steel, presented in [8].
a b Fig. 1 - Reduction of strain on tension curves of steel X52 (a) and X70 (b) The steel ductility decreases with an increase in the volume of hydrogen, since the hydrogen embrittlement rate rises up.
Reduction of impact strength, and growth of fatigue crack during tests in hydrogen environment confirm the need for complex assessment and absence of "universal" embrittlement index as in each individual case under different conditions one or another mechanism of hydrogen embrittlement prevails.
A typical manifestation of embrittlement is a reduction in tensile ductility.

Data are processed on a computer [6-8].
It gives a significant contribution to the reduction of dislocations and impurities.
This reduction decreases thermal resistance Rt.
For one hour, a reduction of Rt with a factor of 7 during annealing at 300 °C was observed.
The observed modifications of structure, more particularly on the stress relaxations in the film, contribute at least partially to the reduction of the effective thermal resistance.

Hence, increasing cargo transport on the Danube means a significant reduction in congestion, noise emissions, environmental pollutions, road accidents and the burden on the rail system.
Sustainable Transport with Reduced Emissions A reduction in emissions and the negative impact on the environment can be achieved by switching to the electrification of transport.
The increasing use of these sources has led to a slowdown in fossil fuel consumption by almost 2/3 in the last 10 years. [7] The production of green energy must increase eight times compared to the level of 2021, and the annual investments in distribution must triple in order to achieve, globally, climate neutrality by 2050, according to a PwC analysis, based on the data of the International Agency for Energy (IEA) [16].
The expected transition to the electrification of transport will contribute to the reduction of emissions.
Achieving the emission reduction targets will require a fundamental transition towards reduced energy consumption and the use of cleaner energy, as well as more efficient use of transport infrastructure [14].

The data obtained were used to create a three-dimensional computer-based reconstruction of the solidified drops, allowing to measure the wetting angle on any desired side of the sample.
An increase of the temperature caused a reduction in the values of the wetting angles of both alloys, as can be seen in Fig. 1.
Similarly, the mean angle of the CuSnTi-alloy changes from approx. 17° to 4°, but the main reduction step does not occur until temperatures above 900°C.
The most noticeable change is the reduction of the silver-amount above 890°C, which leads to significant changes of the microstructure of the alloys.
An increase of the temperature, while holding the other parameters constant, leads to a reduction of the wetting angle for both alloys.

TEM images of (a) spherical gold nanoparticle, (b) mixture of gold crystals after 1day reduction.
From these data, it is obvious that the 1-D and 2-D NCs are made from 0-D NCs through photo-ripening step in our experiment.
TEM image of 2-D gold crystal after 3 day reduction.
(c) Optical and (d) AFM image of 2-D gold nanocrystal after 3 days reduction.
TEM images of gold nanocrystal after (a) 1day and (b) 3 days reduction with thiol-functionalized triblock copolymer.

The table with distance in Z direction the 1th-10th point relative to the 11th point is shown in table.1and table.2 Table1.The distance in Z direction the 1th-10th point relative to the 11th point in plan 1 number 1 2 3 4 5 6 7 8 9 length（mm） 8.463 8.770 8.200 8.069 -0.109 7.806 8.618 8.543 8.411 7.728 We can get the error of straightness of steel-bar in plan 1 is 8.787mm/m Table2.The distance in Z direction the 1th-10th point relative to the 11th point in plan 2 number 1 2 3 4 5 6 7 8 9 10 length（mm） 2.282 4.723 -0.102 4.823 5.421 5.672 5.262 4.050 3.502 2.636 We can get the error of straightness of steel-bar in plan 2 is 5.672mm/m From the data in table 1 and table 2, we can know that the press amount of front straightening block in table 1 is small, which don’t completely eliminate the influence with original curvature to steel-bar straightening, so the error of straightness is larger, we can know that the press amount of front roller in table 2 become larger, the error of
(2)By analyzes and consider the influence of the resistance while bar straightening process, We can get a conclusion: rolling reduction of the first straightening block should keep about 7mm, rolling reduction of the second straightening block should keep about 13-15mm, middle each straightening block should be proportional decrease gradually, but must ensure that the last straightening block rolling reduction is 0
(3)The roller spacing should suitable enlargement where the rolling reduction big place of straightening block, the second straightening block should keep about 95mm; the other roller spacing should keep about 85-90mm.