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The Influence Factors of Traffic Conditions.
This article chooses the seven factors affecting traffic condition as the attribute variables, including commercial district as the select properties, as shown in Table 2.
In the article, we dig out and analyze the influence factors of the business circle’s traffic condition, and find out the effects of various factors in the business circle, it is helpful for the government department to predict the traffic condition based on the environment factors in the future, so they can respond in a timely manner to the traffic condition.
In the process of the research, there are some deficiencies, such as the influence factors of traffic condition are not comprehensively.
The concept of data mining and technology, Mechanical industry press (2012), Beijing

Calculation of the Jacking Force In the jacking process, the jacking force should overcome the friction, the front-end resistance of the first box girder, while influenced by various external factors, such as correction, the displacement of the reaction wall and so on.
Its top, bottom and two sides friction have marked differences. ③the geological conditions are relatively single, the box girders are usually jacked through backfill soil or rammed earth, but the mechanical properties of soil along the thickness have notable differences; The jacking distance is short, usually only a few meters or to a few tens of meters.
Those features are critical factors in the calculation of the jacking force.
Other factors affecting the jacking force Other factors obviously affecting the jacking force are as follow: ①the construction interval. ② the stiffness of the reaction frame the reaction system. ③error correction. ④other Factors, such as the soil behavior differences at the top and bottom of the box girders ,the ”funnel” effect induced by well point dewatering, altering the water content of the soil along the jacking direction top into the distance are a result of such factors as differences in the specific construction conditions of the jacking force have different degrees.
Then，the jacking force can be expressed as: (4) Where: k -safety factor, the selection of the safety factors is mainly take into account other factors that are not considered in this paper. as well as the simplifying assumptions, which may make the calculated value too small, suggested 1.2.

This study evidenced that the Ti6Al4V-SiCf composite produced by roll-bonding exhibits superior mechanical properties with respect the same material prepared by Hot Isostatic Pressing (HIP) owing to the smaller grain size and the higher dislocation density.
The results confirmed that the fibre-matrix interface is substantially stable and the mechanical properties are scarcely affected by the treatments also in the most severe conditions examined by the authors.
a) b) Conclusions The microscructure of Ti6Al4V+SiCf composite produced by RDB shows smaller grains and higher dislocation density with respect to that prepared by HIP; these features guarantee better mechanical properties.
The mechanical properties of RDB composite should be scarcely affected by the treatments also in the most severe conditions (1000 hours), as already observed for HIP composite.
On the basis of present results RDB seems to be advantageous with respect to HIP for producing Ticomposites because the costs are lower and the mechanical properties better.

Introduction Due to the excellent mechanical properties, Yttria stabilized zirconia polycrystal (YSZ) has become an attractive high-toughness core material for fixed dental restorations [1-3].
The transformation rate is related to factors such as loading of the ceramic reconstruction, temperature and time of exposure to surrounding media and manufacturing processes of YSZ [5-8].
Other factors that might affect the resistance to aging, for instance, the grain size and silica impurity content at grain boundaries are both affected by the addition of alumina.
Mechanical properties and short-term in vivo evaluation of yttium-oxide-partially-stabilized zirconia, J Biomed Mater Res 23(1989)45-61
Time-denpendent changes in the mechanical properties of zirconia ceramic.

Introduction The growth of technique and technology in mechanical engineering entails the desire to use the most efficient and effective mechanical processing methods.
Oxide-carbide cutting ceramics combine the properties of both ceramic and metal constituents.
The above-mentioned properties define the main area of use of cutting ceramics - finish treatment under conditions of a technological system with increased rigidity.
Cutting ceramic composition: 1 - aluminum oxide (Аl2О3); 2 - refractory metal carbides (TiС, WC, MoC) The main factors affecting the cutting properties of ceramic cutting inserts are the microstructural parameters of the material, which include the number, distribution pattern and size of carbide inclusions.
The more ceramic grains are distributed over the area of ceramic plates and the smaller their size, the better the cutting properties and performance of the tool material [1-3].

Factors which have influence on the magnesia recovery such as time, temperature, pressure, particle size and calcination temperature have been studied.
The Fe2O3 impurity is hazardous because it decreases the refractory properties of magnesite [1].
We have carried out some research on determining factors which affect the speed and completeness of leaching magnesia from Satkinsk fired magnesite by carbonic acid.
Reactors for leaching can be of different construction (e.g. with mechanical agitation of pulp or air agitation with an airlift pipe [3]).
The main factors were elicited which affect the speed and completeness of leaching magnesia from Satkinsk fired magnesite by carbonic acid. 2.

A preliminary seismic analysis of 335 existing bridges was carried out, where in most cases the main mechanical characteristics of bridge elements were unknown and hence some assumptions about significant properties of materials were done on the basis of the original design documents and the construction practice at the time of the structures’ edification.
In-situ and laboratory tests The in-situ investigation campaign has been finalized to define the main geometrical, physical and mechanical properties of the basic materials constituting the 71 examined bridges in order to use these data for the construction of updated Finite Element model much more closer to the real characteristics than those preliminary analysed.
Safety factors FCi have been calculated also for the spandrel wall.
It can be finally observed how safety factors for the arch and the spandrel wall at Safety Limit State are bigger than those obtained at Ultimate Limit State.
For each bridge the significant safety factors FCi have been calculated.

Zhen-hai Long, etc. [3] took a high-speed milling test of 2Cr13 martensitic stainless steel (30HRC) with milling parameters of three factors and two levels, found depth of cut and feed per tooth rather significantly affecting force, and it is nonlinear relationship between force and speed.
SDC-C4F Dynamometer Fig.1 Force-Measuring System Milling speed, feed and axial depth of cut were taken as three factors affecting forces, orthogonal test was adopted for mapping overall milling condition with less times of test，orthogonal table of L25(56) with 5 levels was choosed, there are all 6 columns in this table, the 1-3 column was used as speed, feed and axial depth of cut respectively, no.4 column was used as error, other columns were blank.
From above analyses, it is known that the contribution of error to force signal is small, i.e., the measured signal can reflect the real properties of milling force.
Fig.3 Variation Tendency of Index Following Factors Acknowledgments The authors acknowledge the National Natural Science Foundation (50975053) for supports.
Wang: Chinese Journal of Mechanical Engineering Vol.42 (2006), p.30-34

Kaibyshev1,c 1Belgorod State University, Pobeda 85, Belgorod 308015, Russia adubyna@bsu.edu.ru, bmogucheva@bsu.edu.ru, crustam_kaibyshev@bsu.edu.ru Keywords: aluminum alloys, equal channel angular pressing, mechanical properties, ultrafine grained microstructure Abstract.
Effect of extensive grain refinement on mechanical properties of an Al-Mg-Sc alloy subjected to equal-channel angular pressing (ECAP) at 300°C is considered in detail.
Fig.5 Engineering σ~ε curves aluminium alloy 1570 after ECAP Mechanical properties.
The change in serration type has a minor effect on ductility, and, therefore, manifestation of PLC effect is insignificantly important for mechanical properties of the 1570Al subjected to ECAP.
Court, Influence of grain size on tensile properties of Al-Mg alloys, Mater Sci Tech 19 (2003) 1349-1354

In order to get excellent mechanical properties, deposited alloy system and alloy content are regulated according to the working conditions of the rollers.
Mechanical properties of the deposited metal may be affected by dissolving and precipitating of carbides and nitrides during arc welding.
For example, in this work changing vanadium content only partly improved mechanical properties.
In order to get perfect combination of mechanical properties, we should also make efforts in microstructure refining, composition uniformity and inclusion control, etc.
Crack length is related to many factors of deposited metals.