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A construction 3D printer can be used in a wide range of areas: from creating small structures such as building blocks, flowerpots, benches to large building structures. 3D printing with concrete will also be useful for building houses in disaster-affected areas, in poor developing countries and in all other cases where large numbers of people need to be sheltered in a short time. 3D printing allows you to get products of various complex shapes with minimal time and material costs.
Automation of manual labor will reduce the number of construction workers and minimize the risk of industrial injuries.
Also, cheaper types of concrete can be used, such as fine-grained and sandy concrete modified with additives (hyperplasticizers, hardening accelerators, fiber).

Based on the relevant strengthening mechanisms of the IN718 alloy, the deformation resistance S can be written by, S=Sdisl+SDSA where Sdisl represents the resistance to dislocation motion by relatively strong obstacles (e.g. forest dislocations, grain boundaries, etc.), and SDSA refers to the resistance due to the DSA phenomenon.
Acknowledgments This publication has emanated from research conducted with the financial support of the Shenzhen Municipal Science and Technology Innovation Council under grant number JCY20160608161000821.
Financial support of the National Science Foundation Council under grant number 11872161 is also acknowledged.

There are a number of theoretical models describing reactive magnetron sputtering.
Compared to other methods, RSD makes it possible to control the growth of the coating, heating of the substrate, and also to obtain coatings with a higher density and with a smaller grain size.
The number of molecules of the compound increases, which leads to further poisoning of the target and a decrease in the sputtering rate.
There are a number of ways to ensure the operation of RSD installations in the transition region.
Acknowledgement This study was performed under the «ERA.Net RUS plus» program and funded by the RFBR, project number: 20-53-76012.

The literature mentions vibrations in the region: 1620 cm-1 [9], 1635, 1639, 1639, 1621 cm-1 [10], 1630 cm-1 [2], the different positions being explained by different coordination numbers in the complexes.
The highest roughness corresponds to the sample containing micelles in the precursor solution, where nucleation can start near the film surface and nano-grains can form, as nucleation center, in the nano-reactor represented by the micelle.
Acknowledgements This work was supported by CNCSIS_UEFISCDI project number PNII – IDEI 840/2008, Romania.

Depending on the deposition condition, the microstructure of an Me-DLC coating is basically nanometer-sized metal grains dispersed in amorphous hydrogenated carbon host matrix.
As can be seen in the figure, the friction coefficients of both W-DLC coatings increased with increasing cycle number.
Mechanisms for such friction behavior are still not clear but the W-DLC layer plays an important role in the reduction of the number of cycles required for the completion of the running-in process.

Satisfying the deviations Graded broken stone Aggregate property Aggregate gradation particle model converted into round shape micro-mechanic parameters Grain flow model Simulation test Simulation results Sample molding Testing process Generation of virtual samples simulated loading process Laboratory test Test result simulated testing conditions Reliability analysis the CBR Numerical Value Testing Method for Graded not satisfying the deviations Numerical simulation Laboratory test Contact constitutive model Simulated Load Plate Simulated Pressure Head Figure 3-1 Construction Principles for CBR Numerical Experiment on Graded Macadam 5cm 5cm 5cm Simulated Load Plate 12cm 15cm Figure 3-2 Schematic Drawing for the Loading Process of the CBR Numerical Experiment The CBR laboratory test and Numerical Value Simulation were carried out according to the grading in Table 3-1.
Table 3-1 Comparison between the CBR Actual Measurement Results and Simulated Results Serial number Mass percentage passing the following sieve pores (mm) Actual measured value （%） Simulated value （%） Deviation （%） Average deviation （%） 31.5 19 9.5 4.75 2.36 0.6 0.075 1 100 64 52 40 34 25 15 495 525 6.06 5.02 2 100 64 52 40 30 17 7 595 627 5.37 3 100 61 48 35 30 22 13 518 552 6.56 4 100 61 48 35 26 15 6 655 676 3.21 5 100 58 44 30 25 18 11 626 642 2.56 6 100 58 44 30 22 13 5 692 736 6.36 According to Table 3-1, deviations between CBR simulated values and actual values of each gradation are all within 7%.
Acknowledgement The project was supported by the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University (item number: CHD2011ZY007), Chang’an University basic research support program and Traffic Paving Materials Ministry of education Engineering Research Center.

EDS analysis carried out on pit show spectra similar to those reported in Fig. 2 (zone 2) and in figure 3 (zone 4).They grow under the specimens surface following the bronze grain structure.
However it has been observed that even if the global patina thickness grow with the number of exposition cycles, it becomes more and more less compact.
The 0 cycle points are those of the original bronze, while the others represent the behavior after different number of cycles.

Traditional soil erosion research needs a large number of field investigation and work, which takes too much time and can’t calculate accurately in specific region, in addition, it is also difficult to obtain the dynamic change information of soil erosion.
(3) In formula(3), Sn=1-Sd/100; Sd, Si, Cl and C are content of sand grain, silt, clay and organic material.
Technical Bulletin Number 1768[R].

The 180º domain walls are pinned by obstacles such as defects of the microstructure, grain boundaries, dislocations or precipitates, and need energy to move from these pinning sites.
The amplitude and the number of MBN pulses depend on the number and morphology of the obstacles and on the derivative of the magnetic field applied.

The class including the major number of fiber length was 20-25 mm (20.5%), as shown in Fig. 4.
Water, two different grain sizes of limestone aggregates and locally available sand were also used.
A total number of twelve panels have been realized (Fig 9), varying the ordinary steel reinforcement when reinforced concrete is applied.