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For this technology the information about technological factors (temperature, pressure etc.) on properties of nonwovens is necessary.
In our case it is confirmed: for sample with the highest water penetration, mechanical properties are better, than for samples with lower ones, meanwhile the amount of hemp fibres did not affect water penetration of NW.
The content of polypropylene fibres in the web is the main factor influencing the strength and elongation properties of investigated NW.
Hui, Critical factors on manufacturing processes of natural fibre composites, Comp.
Quaiyyum, Mechanical properties of polypropylene composites: A review, J.

Three commercial lime-cement plasters were subjected to real Central European environment and their mechanical properties were monitored in time.
The results proved expected positive influence of lime carbonation on mechanical properties in short-time horizon while longer environmental exposition reduced them.
Experimental program Three types of commercial cement-lime based plasters were selected for present experimental program; their mechanical properties were monitored in course of three years.
Initial period of specimen exposure was positively affected by the continuing progress of mechanical and other physical properties, where was observed increased resistance to action of weather.
Assessment of the durability of concrete from its permeation properties: a review.

Introduction Steel is recognized as one of the main factors in the development of the modern world.
The study will be performed by developing reliability based strength reduction factors.
Increasing percentage of carbon does lead to increase in strength however it does lead to a decrease in ductility and hardness while also affecting the weldability [2].
Carbon Equivalent (CE) Hardness, Strength, Weldability Needed to set cooling parameters for the thermos mechanical process and a small change in amount of carbon equivalent can affect the overall physical properties.
Statistical analysis for Grade 60 A615 Grade 60 reinforced steel bar mechanical properties.

Physico-mechanical properties of the fired ceramic bricks are shown in Table 3.
As known, R2 is normalized to 0 to 1 in calculations; if it is close to 1, the regression equation handles the actual data better, and the factors affect the results to a greater degree.
If it is close to zero, the regression equation is weak at describing the actual data, and the factors barely affect the results.
The researchers have managed to produce ceramic bricks of high physico-mechanical properties from the tailings of ferrous and nonferrous metallurgy without using convention natural materials.
Loryuenyong, et al., Effects of recycled glass substitution on the physical and mechanical properties of clay bricks, Waste Management. 29.10 (2009) 2717-2721

Keywords: Mechanical properties; Microstructures; Ti(C,N)-TiB2-WC ceramic Abstract.
The microstructure and mechanical properties were investigated.
In order to improve the mechanical properties of Ti(C,N) cermet, the important factor that must be considered is the sintering additives.
(b4) EDS of S4 Mechanical properties.
From Fig4, the agglomerate metallic binders are found in TBW1 and TBW3, which is another factor affecting the mechanical properties.

Niu Jingxing et al [4] conducted comprehensive tests on the physical properties, particle gradation characteristics, apparent morphology, elemental composition, mineralogical composition, and chemical properties of desert sand in typical desert areas, and found that factors such as the specific surface area and particle size of desert sand affect the strength formation process of concrete.
Research on Mechanical Properties of Desert Sand High Strength Concrete [J].
A review on the effect of macro factors of fiber on concrete [J].
A review on the mechanical properties of steel fiber concrete [J].
Experimental study on mechanical properties of steel fiber concrete [J].

Tests were carried out to study mechanical properties of hybrid fiber reinforced full lightweight aggregate concrete (HFRFLAC), the hybrid fiber was composed by steel fiber and polypropylene fiber, the expanded-shale and lightweight sand were used as coarse and fine aggregates.
On the view of applying LAC and FLAC to structures in larger tensile stress, the mechanical properties of LAC and FLAC reinforced by steel fiber were studied [2, 3].
As part of a series, this paper introduces the experimental results of mechanical properties of hybrid fiber reinforced full lightweight concrete (HFRFLAC).
Table 1 Physical and mechanical properties of cement Grade Fineness (%) Setting time (min) ft (MPa) fc (MPa) Initial Final 3d 28d 3d 28d 42.5 1.0 230 320 5.5 8.4 23.9 43.7 Table 2 Physical properties of lightweight sand Series (mm) Fineness modulus Apparent density (kg/m3) Bulk density (kg/m3) 1 h absorption ratio (%) Mud content (%) 0.16-5 3.5 1945 1010 8.0 1.2 Table 3 Physical properties of expanded-shale Series (mm) Apparent density (kg/m3) Bulk density (kg/m3) Crushed index (%) Tube compressive strength (%) 1 h absorption ratio (%) Mud content (%) 5-20 1680 814.5 8.0 8.0 5.0 0.56 Mix Proportion of Concrete.
As listed in Table 4, the scopes of mix factors were selected on the strength grade LC35 of structural lightweight concrete and the density class 800 of lightweight aggregate [1].

The current loop is modulated by the relevant factors of ship shaft, and the SRE is produced.
The characteristics of SRE are affected by the factors below. 1) Bearing contact impedance change Shaft bearing contact impedance changes periodically with the ship propeller’s rotation.
Ship SRE related electrical characteristics analysis The main factor affecting the ship SRE characteristics is focus on the ship shaft structure.
Although the bearings have great difference in mechanical structure and mechanical properties, but the electrical characteristic and equivalent circuit are the same from the electrical point.
The circuit has the characteristics as follows. 1) Variety part is the main factors affecting to the ship SRE.

Many factors affect the surface integrity of machined components, including cutting parameters, tool parameters, material properties and vibrations.
Factors Affecting Roughness and Residual Stresses In general, the factors that affect surface integrity (especially roughness and residual stresses) in machining process can roughly be classified into four groups: cutting parameters, tool parameters, material properties and vibrations in cutting process.
The mechanism does not depend on the mechanical properties of the material.
Material Properties.
So they are important factors affecting surface integrity and should be minimized.

To attain these properties for the pipe and the weld seam, especially in the heat affected zone (HAZ), is necessary to obtain some microstructures which enable the steel to reach the required mechanical and metallurgical properties.
The pressure rolls is pushing pipe edges together as in a forging process and complete the pipe welding process [6] Fig. 1 Schematic diagram of the welding process HF-ERW Pipes[5] Fig. 2 Work coil, tube and squeeze rolls [4] The main welding variables affecting the weld quality in HF-ERW are: (1) mechanical factors (edge formation), such as degree of ‘’V’’ opening, parallel edges through the “V” and relative position of edges, squeeze force and upset amount; (2) electrical factors: welding frequency, welding power, current, voltage and weld speed and (3) properties of base material: weldability, chemical composition, structure [6].
The weldability is one of the principal factors with a major influence on the quality of the welded pipes.
This material property is directly influenced by a series of factors, such as: chemical composition, (mainly by the carbon content), equivalent carbon, chemical and structural unhomogeneities and steel purity.
But reducing the content of these two elements leads to drastic decrease of the mechanical properties.