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The main bridge was T-shaped symmetrically constructed with the symmetry axis of the four piers numbered 5~8.
The length of the beam numbered 0 is 6.0m, and the others from 1 to 9 are 4.0m.
Beam number 0 was constructed by setting up brackets, and others were constructed by basket suspended casting, the heaviest section is 1553kN.
The main piers numbered 5~8 located in the river channel of Zi-River.
Insert the tubes to close-grained soil and rock faceas far as possible.

In the 139 territorial administrative units there are 341 localities, of which 11 are municipalities (Constanta municipality is not included, although it is connected to the Danube through the Danube-Black Sea Canal), 10 are cities (whose composition includes, besides the localities of residence, a number of 18 villages) and 117 communes (composed of 185 villages besides the localities of residence). [5] The territorial administrative units, with the number of localities included and their distribution as entities, which are in the Danube riparian area are presented in table 1.
Distribution of component units of Territorial Administrative Units [5] Territorial administrative units Nr. of localities included Of which: 139 341 Municipality Town Villages that are part of cities Common Villages in communes 11 10 18 117 185 At national level, the situation of the population (number of people) connected to the public water supply system is shown in Figure 1, which also presents the situations related to 2020 and 2021. [6] Fig. 1.
The population connected to sewerage systems and treatment plants as number of people is shown in Figures 2 and 3 as a comparative situation for the years 2020 and 2021. [6] In both situations, a slight increase in the population connected to sewage systems and treatment plants can be observed.
[7] Elisa-Florina PLOPEANU, Experimental research on the capture and valorization of fine-grained oxidic waste generated in the ceramic and refractory materials industry, PhD thesis summary, Bucharest Polytechnic University, 2020

The SBA-15 has enhanced hydrothermal stability, if compared to other ordered mesoporous silicas such as the MCM-41 type, and large surface area (600–1000 m2/g), which allows the dispersion of a large number of catalytically active species [4].
The FTS activity and C5+ hydrocarbon selectivity increased with the addition of Ru, which was attributed to the increased number of active sites resulting from higher reducibility and the synergistic effect of Ru and Co.
The increase in activity and selectivity were attributed to the higher number of active sites resulting from higher reducibility, as well as, the synergetic effect of Ru and Co.
This behavior depends on the coordination number of the metal with the OH groups and the length and angle between the metal ion binding to a silica surface.
Conclusions According to XRD, BET, and EDX results, the SBA-15 support has a structure that includes multi-level mesopores, crystallites, and grains within the original particles.

Cutting with manual tools, 2 tubes which leakage occured at most recently were obtained, each number K1 and K2.
In the same way, one no-leakage tube in the low emperature zone was obtained, number KN.
Another 2 tubes from the high temperature zone of the same assemble were obtained also, number H1 and H2 respectively.
Metallographic structure of 5 samples were all Ferrite + Pearlite, with grain sizes of grade 9~10.
Corrosion product element figure analyzed by EDS Tab.3 Cl- content of the tube surface on the site of HRSG[mg/m2] Tube number 1# 27# 40# 75# 80# Cl- content 80～85 130～135 95～100 45～50 45～50 Fig.5.

The utilization of black liquor (BL) to produce lignin and a number of valuable chemical products is economically attractive.
A number of literature has reported the utilization of lignin as raw material for binder, plasticizer, surfactant, polymer product, and other chemical products [3–6].
A number of lignin sources such as oil palm empty fruit bunches, black liquor, rice husk, and bagasse have been reported for SLS production in the literature [1–4,7].
However, the grain of BL lignin appeared to be larger compared to the commercial lignin.
The peak absorption of IR in the aromatic functional group is at wave number 1505-1515 cm-1.

The number of the appearance of new aggressive substances reaches 900 per year.
The development and intensification of industry in modern conditions is accompanied by an increase in the number of emergencies leading to the occurrence of a fire or an explosion of hydrocarbon substances contaminated with aggressive (toxic) substances.
The volume and number of clusters is determined by the amount and size of the filler particles, as well as the ratio of the surface activities of the filler particles and the binder grains.
In turn, the volume and number of clusters determine the type and total area of internal intercluster interfaces.

Introduction The increasing number of products of complex shape of heterogeneous and multi-thick alloys cause the creation of new progressive processes and processes research and technologies of their implementation.
As a rule, such compounds are obtained by welding methods that limit the presence of the surfaces to be joined at intensive grain growth.
Variation of the number of turns of the inductor helix (characterized by inductivity L) allows to change the amplitude and duration of thermal exposure.
Variation results of the gap between the welded parts in the range of 0,4 – 2,0 mm at a constant energy W=8100J, the charge voltage of the capacitor U=2600V, the number of turns of the inductor N=7coil showed the following.
The mass of the pusher in the experiments was M=1 kg, the number of turns of the inductor N=7 coil, which corresponded to the inductance L=2100∙10-9 H.

From this perspective, one of the design philosophies used to trigger the onset of reinforcement mechanisms is to generate compressive stresses within the material [7], therefore, the variables that should be taken into account for the analytical determination of the stresses residual and therefore the design of layered materials are as follows: thermal expansion coefficients, phase transformations or chemical reactions, number of layers, thickness and Young's modulus of material or materials used to form the layered ceramic component.
However, the zircon particles are substantially larger than the alumina, therefore these large particles may act as stress concentrators cracking the zircon particles and causing cleavage points along the grain.
On the other hand, the parameters to be taken into account in the design of the multilayered materials are the thermal expansion coefficient, the Young's modulus, the number of layers in the material and thickness of these; based on these parameters it is possible to determine the residual stresses to be present in each layer.
In addition, is necessary to take into account that the Young's modulus and the thermal expansion coefficients are inherent characteristics of the materials and are not so easily manipulated, but the design of the multi-layered component can be modified based on the number of layers and thickness of these.
Thus, if the number of layers is very large and the thickness of the layers is the same, compression and tensile residual stress are of equal magnitude.

This fracturing characteristics that make fracture net pressure changes quickly, fracturing on the plane and the vertical fracture morphology is not stable, and is not easy to form a distinct advantage main fracture, at the same time, due to the conglomerate reservoir there is a large number of various sizes and micro-cracks, a serious heterogeneity when fracturing extended to intersect natural fractures, the fracturing fluid is formed in the direction of the natural micro-cracks tributary of the main fractures lateral displacement, cause glutenite reservoir fracture in wall is very irregular, impact the main crack formation and irregular extension.
With the rock from the split will be accompanied by the opening of natural fractures, loss of fracturing fluid filtration serious performance in the fracturing process, due to the large amount of fracturing fluid at the same time, if not timely flowback fracturing fluid residue large number of stranded storage layer porosity and naturally fractured reservoir damage, leading to serious effect of the lower reservoir reconstruction.
Utilize FracProPT software simulation fracturing target layer under a number of different proppant fracture parameters (Table 2), With the increase in the number of proppant, fracture length, fracture height and fracture width has been increased.
Proppant in the conveying process to the formation due to injection of the slurry density with fractures in the original fluid density differences and other factors, will result in the proppant grains downward movement (proppant convection sedimentation), high density proppant will drop while low density proppant will float, cracks in the lower part of the laid effect was significantly better in the cracks in the upper; glutenite reservoir complex deposition conditions decide the rocks generally exhibit plasticity characteristics.The proppant embedded after fracture closure, to reduce the fracture conductivity.

The training data is represented by (N, T, X)=(5x101x64), with N representing the number of instances, T is temporal resolution, and X denoting the spatial resolution along x direction, respectively.
The FNO architecture is described by the modes, number of Fourier layers, and widths.
We found the optimum number of Fourier layer, modes, and width to be 4, 22, and 16 respectively.
The optimum number of epochs, learning rate, and gamma value was found to be 20,000, 0.001, and 0.7 respectively.
Although we have shown the efficiency of FNO model on precipitation growth problem, it can be used for rapidly predicting other complex microstructural evolution problems such as grain growth and coarsening, solidification, and crack propagation.