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Circle Square Rectangle Steel tube Steel tube Steel tube Fig. 1 Section form of concrete-filled steel tube column Concrete Concrete e Concrete e Circle Square Rectangle Steel tube Steel tube Steel tube Fig. 1 Section form of concrete-filled steel tube column Concrete Concrete e Concrete e The most important thing is to determine the ultimate bearing capacity when analyzing the mechanical properties of axial compression members.
Examine effects of various parameters on the bearing capacity of CFRST column, remove the less affected factors, choose the main parameters, and perform the linear regression again, finally establish a simple formula of the ultimate bearing capacity of CFRST column based on multiple linear regression analysis.
Determination and test of the regression formula. 85 data are collected, which are from document [1,2,3,4,5,6].In order to get rid of accidental factors and random factors influencing the interference and increase the representation of regression equation, after initial regression, the original data with larger deviation are deleted, and the regression equation is established again, so repeatedly until the desired conditions are satisfied.
Material properties of steel with thickness 2.86mm and 7.6mm in reference [1] are listed in table 2.
Table 2 Material properties of steel Elasticity modulus （Mpa） Poisson ratio Yield limit fy （Mpa） Ultimate tensile strength fcu（Mpa） 182000 0.3 227.7 294.4 194000 0.3 194 298.6 The selection of concrete material model.

It is a coating which, in addition to its high hardness and wear resistance, has high adhesion to the substrate and excellent corrosion properties.
Multilayers coatings have excellent chemical and mechanical properties including hardness and fracture toughness.
The area affected by deformation was evaluated using a light microscope OLYMPUS VANOX-T.
These factors contribute to obtaining a high-quality of thin hard PVD coatings.
Hagarová, Determination of the properties of PVD coatings.

The purpose of FSP is to modify the microstructure of a material to enhance specific material properties.
This characteristic allowed certain material properties within the weld zone to be improved versus the base metal.
This can be used to improve sealing capability of castings, reduce repair, and improve material properties.
Although the cause of lower ductility results was proven to be a result of abnormal grain growth (AGG), the source or controlling factors for causing AGG were not understood.
In order to understand the controlling factors for AGG, an experimental study was developed that involved FSP over a variety of input parameter conditions with subsequent high temperature heat treatment.

In this article, the sketch map of typical sections of dragline operation bench before and after the throwing blasting is drawn, the rock characteristics, rock structure, lithology, physical and mechanical properties of rock and the nature of the structural surface is statistic by the methods of theoretical analysis, laboratory investigation, field research and so on.
The safety factors of dragline operation bench are calculated under different parameters and different influencing factors by Rigid Body Limit Equilibrium Method, the stability of dragline stripping bench is synthesized analyzed and the safe operation parameters of dragline operation bench is proposed.
By selecting typical sections, using Rigid Body Limit Equilibrium Method, the safety factor of dragline solid high bench and dragline stripping loosen bench under different parameters and different influence factors is analyzed and calculated, then the sensitivity analysis of the factors which influence the dragline solid high bench wedge destruction is advanced.
Sensitivity analysis is used to study the major factors which influence the slope safety by orthogonal test method [5].
Slope angle on the impact factor of safety is highly significant which means that slope angle is the sensible factor affecting the stability of dragline solid high bench [6].

Effect of basalt aggregate on the mechanical properties, deformations, thermal properties of concrete was studied in this paper.
The properties of two kinds of aggregates were showed in Table 1.
Results and discussions Effect of basalt aggregate on mechanical properties of concrete：In the case of approximate gradation and particle shape of aggregate, the crushing index and sturdiness of aggregate have greater influence on concrete strength.
Table 4 The thermal properties parameters of concrete No.
Due to the variety of factors to influence the shrinkage cracking of concrete, including strength, deformation, creep, and so on, there is no unified evaluation system to evaluate the crack resistance of concrete.

Introduction Magnesium alloys have become promising bone implant materials due to their attractive properties, such as biocompatibility, biodegradability and mechanical properties analogous to natural bones [1, 2].
However, magnesium alloys are extremely vulnerable to corrosion in body's fluid, resulting in generate pockets of hydrogen gas near the implant, increase alkalinity and magnesium ions concentration of the embedded surroundings and reduce the mechanical properties of implants prematurely [3-5], which had prevented their further clinical use.
Ding, Properties of fluoride film and its effect on electroless nickel deposition on magnesium alloys [J].
Zhou, Influence of fluoride treatment on surface properties, biodegradation and cytocompatibility of Mg-Nd-Zn-Zr alloy [J].
Zhang, Fluoride influences transduction pathway of transforming growth factor surperfamily members expressed in osteoblast [J].

Many factors influence the accuracy of the measurements.
Applications The functional properties of building materials can be optimized by nanotextile coatings.
Application of nanotextiles on the surface of various materials can gain better functional properties such as biological (i.e. antibacterial or antifungal) and mechanical properties (i.e. decreasing of roughness, hydrophobicity, dirt-repellent, abrasion-proof), particularly at the micro/nano scale [14,15].
A thin layer consisting of SiO2 nanofibers forms within lime plaster silicon-based network upgrading its mechanical properties (Fig. 6).
LEE: Contact Angle and Wetting Properties, in: Surface Science Techniques.

Functionally graded Inconel 718 processed by additive manufacturing: Crystallographic texture, anisotropy of microstructure and mechanical properties[J].
A critical review of pow-der-based additive manufac-turing of ferrous alloys: Process parameters, microstructure and mechanical properties[J].
Optimization of selective laser melting parameters and influence of post heat treatment on micro-structure and mechanical properties of maraging steel[J].
Microstructural evolution, nanoprecipitation behavior and mechanical properties of selective laser melted high-performance grade 300 maraging steel[J].
Study of mechanical properties and heat treatment of the 18Ni300 maraging steel manufacturing by selective laser melting[D].

The challenge is to find the optimum between the chemistry, the design, the EHS (environment, hygiene, and safety) compliance, and economic factors.
But, considering the properties of PVC, it cannot withstand heat within a long period.
Rus Anika Zafiah: Effect of Titanium Dioxide on Material Properties for Renewable Rapeseed and Sunflower Polyurethane, International Journal of Integrated Engineering (Issues on Mechanical, Materialsand Manufacturing Engineering), Vol.1 (2009), pp.15-22
Rus Anika Zafiah, Material Properties of Novelty Polyurethane Based On Vegetable Oils, The 11th International Conference on QiR (Quality in Research), Depok, Indonesia, (3-6 August 2009)
Part 2; Thermal Degradation and Materials Properties, Prog React Kinetic and Mechanism, Science Reviews, Vol.34 (2009), pp.1-43

The intermittent cycle is far more than the time that filtering surface could last in normal operation because of the flow mass of water and the mechanical properties of motorized valve.
Fig.5 The principle of sewage sub-system Fig.6 The pipeline impedance in sewage sub-system In Fig.6, represents the impedance of sewage heat exchanger and its subsidiary pipe line which is the main factor affecting the stability of running system; , , ,which are constant, mean the internal impedance of anti-blocking machine; While , , , , which could be changed by controlling valve to balance the flow distribution, mean the impedance of other external pipelines.
Another critical factor affecting the balance of flow distribution is the flow-head function , of pumps at all levels.
Hydraulic Properties of Double-stage Pump Technology In this paper, about the operation properties of the double-stage pump, we do a large number of numerical simulations whose conclusions are highly consistent.
(3) Changing the first pump properties: As is represented in Fig.9, the abscissa expresses the pump label head when the pump flow is zero in sample.