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The benefits of utilizing recycled concrete aggregate (RCA) include less environmental damage, a significant reduction in the demand for a material depot, and the preservation of natural aggregates in the natural environment [14, 15].
These conditions, coupled with the reduction of water surface area, ultimately increase its solubility and reduce the degree of hardness [22].
As shown in figure 12-b, c and d, the load-deflection curves were plotted using the data recorded by the flexural strength test.
Steel fiber reinforced specimens showed a linear relationship up to the peak load, followed by a reduction in load and larger deflections with continuous loading.

The process is generally described as a controlled autocatalytic chemical reduction process for depositing the desired alloy and is simply achieved by dipping the substrate into an electroless bath under appropriate plating conditions.
The process steps include sensitization, activation, reduction then Ni-P deposition.
A good adhesion was found between the interlayer and the substrate, however, the process includes several steps and data about the heat resistance of the varnish layer was not provided.
The sequence of the process included PEO, activation, reduction and final electroless plating.

Climatic Data.
The field data was observed through the usage of weather Tracker Kestrel 4500 model for Temperature and Relative Humidity.
Also, secondary data was obtained from Nigerian Meteorological Agency (NIMET) to benchmark the field data.
Over the period, there have been reductions in the bacterial abundance with mean value from the baseline samples (16 133 333 Cfu/g) higher than that of the current soil samples (46 333 330 Cfu/g).
The obtained and generated data in this study (plant capacity, pollution parameters on soil and water) can be used to model optimum engine stack with minimal pollution level. 2.

We provide a simple theoretical explanation why these materials can exceed the hardness of diamond, and outline a possible way how to design new nanocomposites with even higher hardness when reduction of Friedel oscillations of the valence charge density, which weaken the strength of the transition metal nitride, can be accomplished.
The somewhat lower value for c-BN from Ref. [13] should emphasize that there is some scattering of the data due to different quality of the samples.
Moreover, we have shown recently, that upon shear to a strain of about 0.5, ReB2 undergoes electronic instability with the formation of strongly bonded B2-like dimers which weakens the Re-B bonds [38], and upon further 0 100 200 300 400 500 600 0 20 40 60 80 100 120 c- & w- BN nanocomposites c-BN - Dubrovinskaia Vickers Hardness (GPa) Elastic Moduli (GPa) CB2N BC5 c-BN - Teter Diamond nc-TMN/a-Si3N4 Nanocomposites Fig. 1: (colour online) Correlation of hardness and shear moduli of conventional materials which deform by crystal plasticity: solid circles are from [12], the data for CB2N, BC5, "c-BN-Dubrovinskaia", "c- & w-BN nanocomposites" and for the nc-TMN/a-Si3N4 nanocomposites are from papers quoted in text.

Among the services that will be supported by the communication infrastructure, it is possible to mention the rationalization of administrative processes, the dematerialization of public administration, digital school, open data, e-government, ambient assisted living and telemedicine, promotion of cultural heritage, video surveillance and energy efficiency.
The experimental activities were applied to both real cases [23, 24, 25] and laboratory prototypes [26, 27] exploring the use of various data analysis technique [28].
The measured data acquired during the rapid testing campaign was opportunely selected to perform a parametric identification of a modal model for the tested substructures A1 and A3.
In order to corroborate the results obtained with the EFDD method, especially regarding the identification of fictitious frequencies and modes, also the SSI method was used with the same testing data to identify a modal model representing the natural vibration of substructure A3.
Smart city dashboard for integrating various data of sensor networks.

The curve with ‘DATUM’ remark denotes the initial reference value.
Increase the thickness of PCB board by 40% would lead to 25.70% reduction in solder joint fatigue life, on the other hand, increasing the substrate thickness by 40% would lead to 14.05% increase of solder joint fatigue life.
The effect of solder ball joint space upon its fatigue life change is relatively small (not more than 6.1% variation), as increasing the space parameter, the fatigue life of solder joint would present a reduction first, then a increase would occur.

The experimental data validated the simulation results and showed that the temperature change and distribution area in the process were related to the exposure structure.
From the fig.6, it can be seen that the change of the internal shape (reduction of the reaction area) can effectively accelerate the thermal diffusion and reduce the central heat accumulation.

Systematic analysis of many experimental data led to question chemical, physical, mechanical parameters contributing significantly to improve the kinetics of absorption/desorption.
All these techniques are known to create high densities of defects parallel to a dramatic reduction of the crystallite mean size as shown on Fig. 2 b (left).

The experimental data were processed using mathematical statistics.
Their efficiency is higher with an advantageous reduction in the mass of aircraft in comparison with hydraulic and pneumatic systems and drives.

(a) 3 σc ↑ log σIS log P σc = 0 failure from natural flaws 1 (b) 10 100 100 200 300 400 500 600 σIS [MPa] P [N] engineered laminate monolithic outer layer 1 3 Fig. 5: (a) Theoretically predicted indentation strength behaviour for monolithic specimens and for specimens with different compressive residual stresses in the surface, (b) measured values for an engineered laminate from various Al2O3/mullite composites, compared to the monolithic outer layer material (data from [56]).
In general it is not possible to fit all three parameters of the distribution function to a set of data comprising only 30 or less values [59].
Even though a 2- and a 3-parameter distribution fitted to the same data-set will look the same, they differ when being extrapolated to small probabilities of failure as they a required for the design of (a) (b) Fig. 4: Two common test configurations for laminates: (a) loading axis normal to the layer plane, longitudinal flexure, (b) loading axis parallel to the layer plane, transverse 4-point flexure. components (see Fig. 5).
Such an R-curve is the effect of a reduction of the crack driving force and not an intrinsic property of the material.
It turned out that - in that particular case - the weight function method overestimated the calculated toughness curve by a factor of approx. √2, whereas experimental data fitted well to the results obtained with the material force method.