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In 1971, the Ethiopian National Meteorological Services Agency (NMSA) started to collect the wind data from 39 different locations.
On the basis of the collected wind data from the existing wind measurement stations, two important points are concluded [11]: · There is considerable potential of wind energy generation in Ethiopia · Due to different topographies in Ethiopia, the generation of wind energy varies considerably for different locations.
There has been an incredible reduction in the cost of solar PV modules.
There are different advantages of DERs over centralized grid system, such as power loss reduction, scaled design and appropriateness to use renewable resources.
ICTs play a significant role in the success of DERs as they help in distant announcement of maintenance, recuperation, effortless data analysis and smart metering.

This property can help in reduction of future e - waste. 2.1.3.
Acetylcholine esterase is used as the model catalyst and with the aid of spectroscopic data it is shown that the observed high operational stability of the biosensor is due to the direct interaction of the protein with the silica backbone, as well as due to the nanostructured enzyme confinement [122]. 3.
Chemical / Biochemical pH, Rate of Reaction, Concentration, Oxidation/Reduction Potential, Composition etc. 8.

From the experimental diffraction data, Rietveld refinements were used to determine the crystallite size and lattice constants.
The Marquardt least squares method was used to increase the quality of fit.[27] A report (Rwp/Rexp) called Goodness of Fit (GoF) was created by minimizing the difference between experimental (Ie) and computed (Ic) data.
We get the following total broadening by combining these latter equations (Sherrer and Stokes & Wilson) with equation (2) and multiplying both sides by cosθ: βtotalcosƟ=KλD+4ƐsinƟ (5) The intercept of the fitting line combined with the subsequent data is used to determine the average crystallite size: βt cosθ against 4sinθ (see Fig. 6).
Equation (7) was adapted in the Tm region in agreement with the results from the experimental data for the dielectric constant.
The SEM images show that the addition of potassium results in a reduction in grain size and has an impact on their shape.

Data obtained from XRF measurements were analysed using the ‘PyMca’ software [48] to create elemental maps over the sea urchin.
Figure 2 presents data from a typical sea urchin from the control sample (left column) and two regions – the anterior (or top) part (middle column) and posterior (middle bottom) part (rightmost column) – from a typical sea urchin exposed to alkylated SiNCs.
The topmost figures in each column (Figs. 2A, B, and C) are optical microscopy images showing the sea urchins with the superimposed boxes indicating the regions over which XRF data in the column below were obtained.
In Figure 4, the left column contains data from the control sea urchins, while the middle and right column represent SiO2-coated IONP exposed sea urchins examined in two different regions (labelled ‘Region 1’ and ‘Region 2’).
This observation indicates the availability of sulphur-containing compounds used in the reduction of toxicity, caused by exposure to SiO2-coated IONPs.

The main features found in all of them are the concentration of stresses, a higher or lower degree of wearing, and a considerable reduction of life.
The parameter is therefore (24) where ∆γmax is the shear strain increment in the plane where it is maximum, k is a constant that is fitted from the uniaxial and torsion fatigue tests data, σmax is the normal stress perpendicular to the plane where the maximum of ∆γ is produced, and σy is the yield strength.
It is observed that for the same axial stress variation, life reduction due to fretting can reach up to two orders of magnitude.

Beyond this temperature, no Ni hydrosilicate-related peaks were observed, indicating the complete reduction of the Ni compound.
T(ºC) T(°C) WG(%) T(°C) WL1(%) T(°C) WL2(%) WL1+2(%) 500 n.d. n.d. n.d. n.d. n.d. n.d. 9.1 600 251 -1.1 384 6.7 559 6.8 13.5 700 260 -1.3 360 3.2 533 1.3 4.5 800 274 -1.0 390 2.3 518 3.2 5.5 900 256 -0.1 398 0.8 575 6.7 7.5 1000 274 -0.3 416 1.6 649 19.5 21.1 The data in Table 5 reveals that Ni oxidation occurs between 250 and 270 ºC for all samples, and that samples treated at 900 and 1000 ºC present the lowest WG values.
Rousset, Synthesis of carbon nanotubes–Fe–Al2O3 nanocomposite powders by selective reduction of different Al1.8Fe0.2O3 solid solutions, J.

The efficiency of the heat exchanger depends essentially on the fluid temperature, the conductivity of the material used in the manufacture of the heat exchanger and the reduction of heat loss [17].
In addition to the elimination and reduction of the fouling ratio, the geometry of the heat exchanger itself influences heat transfer.
Therefore, the thermal analysis and the mathematical modeling of the heat transfer through the evaporator-absorber are realized by choosing a typical day: July 25th 2019, whose weather characteristics are as follows [46]: Tab. 1: Representation of the location data for the evaporator-absorber study, as well as the meteorological characteristics of July 25th, 2019 Location: Oujda, Morocco General information on July 25th, 2019 and coordinates of the location Sunrise time (GMT) Sunset time (GMT) Time zone Latitude (°) Longitude (°) Altitude (m) 5:12 19:15 UTC+1 34°681’ -1°909’ 470 Elevation and azimuth of the sun on July 25th, 2019 6:00 (GMT) 12:00 (GMT) 18:00 (GMT) Elevation(°) 8°27’ 74°64’ 13°82’ Azimuth (°) 71°72’ 167°28’ 276°73’ Meteorological conditions on July 25th, 2019 Maximum temperature (°C) Minimum temperature (°C) Heat index Pressure (hPa) Wind speed (km/h) Humidity (%) Cloud cover (%) 34 23 34 1015 23 66 7 2.2 Methodology details 2.2.1 Description of heat exchanges

This leads to a reduction of the magnetic moment of the alloy which is reflected, for example, in a reduction of the Curie temperature and the saturation magnetization.
The data have been extracted from the cooling curves of the magnetization measurements performed on the alloy quenched from 1173K and then heated up to several temperatures (see inset).

The XPS spectra were recorded immediately after turning the X-ray source on to avoid any induced artifacts by possible reduction of samples by heating from the beam.
Resistance Data.
Upon hydrogenating the sample the Cr 2p3/2 peak shifts to lower energy which could be assigned to reduction of Cr3+ to Cr2+ state owing to Cr (3d)−O (2p) charge transfer.

The receiving data, which are cell current and voltage, were kept for subsequent analysis.
We separated the data into 3 groups.
They are (i) I-V data of QD solar cell, (ii) I-V data of QD solar cell when temperature is varied and (iii) I-V data of reference cell.
The (i) and (ii) are plotted while only data from (ii) were fitted for finding Iph, n, Io, Rs, and Rsh The plotted and fitting data are showed in the next section.
The raw experimental data (scatter) and the fitted graph (line) of QD solar cell are plotted together.