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But for the issues related to factors affecting the bearing capacity and strengthening the bearing capacity of the specimen calculation did not mention.
On the basis of existing researches, based on simulated by ANSYS software to analyze the stress changes after the reinforcement of the specimen, and the factors that affect the ultimate bearing capacity of the specimen.
b) Select isotropic elastic material properties, including modulus and Poisson's ratio of the material.
Fig.a von mises stress cloud of original concrete Fig.d von mises stress cloud of RG2 inner pipe Fig.b von mises stress cloud of original pipe Fig.e von mises stress cloud of RG2 outer concrete Fig.c von mises stress cloud of RG2 inner concrete Fig.f von mises stress cloud of RG2 outer pipe Fig.3 Stress-strain cloud of specimens Ultimate bearing capacity analysis Tab.2 The ultimate bearing capacity of the finite element simulation kN Number ZG0 RG1 RG2 RG3 RG4 RG5 ANSYS Value of simulation 1256 3250 4239 4832 4345 4380 Reinforced value / unreinforced value — 2.6 3.4 3.8 3.5 3.5 Fig.4 The effect factors of the pairs of concrete filled steel tubular bearing capacity Through the ANSYS simulation results show that: (1)Bearing capacity of reinforced specimens (RG2, RG4, RG5) than the original column (ZG0) ultimate bearing capacity(1256kN) has greatly improved (respectively
(2) After Strengthened the double concrete filled steel tube columns with good mechanical properties.

Some of the Basic Properties of Recycled Concrete Workability.
Adding different types and quantity of recycled aggregate, the mechanical properties showed significant differences.
Factors that determine the permeability of concrete can be divided into two categories.
One factor including concrete mixing material components, mixture, and process parameters, etc.; another factor is the concrete changes with time, that is, in the external environment , structural stress, fluid properties and infiltration conditions and other factors, the concrete within the physical and chemical changes occur.
These factors may lead the production of recycled aggregate concrete to an important way to the future.

In most spillages, farmlands are lost, aquatic and wildlife is affected, and people are in many cases displaced from their homes.
Disasters affect millions of people, degrading human security and hampering the achievement of sustainable development [1].
Early warning information will assist in the evacuation and safety of lives and properties.
The ability to pinpoint the scene of disaster with greater accuracy and follow the appropriate route has meant better response time and consequently save lives and properties.
The study has shown the potential level of environmental degradation when an oil spill occurs in an environment not properly maintained; the human and environmental factors at play in Jesse in the Niger Delta of Nigeria where oil industry is located; the immense role of scientists and geoinformation technology in post impact assessment of oil spillage.

This affects both the properties of the particle in isolation and its interaction with other materials.
About eight articles in this issue deal with these special properties of nanostructured materials.
Abou Zied have studied the dependence of crystallite size on the mechanical properties of nanocrystalline Al-Mg-Mn alloys synthesized by ball milling.
Once particles become small enough they start to exhibit quantum mechanical behaviour.
Arockia Jayalatha have estimated the interaction parameter and structure factor of specific drug delivering fluorocarbon nanosystems.

The key technology of diamond tool ultrasonic vibration cutting ferrous metals is presented in this paper and the influence of the processing environment of the presence of carbon atoms protective gas, the presence of carbon particles coolant of temperature control technology, ultrasonic vibration, workpiece material surface pretreatment or without on diamond tool wear rate and workpiece surface quality, the relationship between diamond tool wear rate, the workpiece surface quality and the ultrasonic vibration technology, processing environment, workpiece material surface pretreatment technology factors is given.
Ed.Paul of America Stockton school and C.Evans et al. from USA National Institute of standards and technology put out that diamond tool wear is divided into the mechanical friction wear and chemical reaction wear[4], graphitization of diamond, carbon atom diffusion, oxide and carbide are chemical wear, the unpaired d electrons in the workpiece material atoms directly influence diamond tool chemical wear.
The experimental results show that carbon atoms in the atmosphere participate in chemical reactions instead of carbon atoms in diamond tools, and the concentration of carbon atom in the atmosphere directly affect the diamond tool wear rate, and that is proportional to the carbon atom concentration in the atmosphere.
E.brinksmeier et al. from University of Bremen in Germany propose the nitriding process, and take nitriding preprocessing on steel workpiece surface layer, improve the workpiece material properties and diamond tool cutting performance, inhibiting the tool wear[12].
Diamond has high hardness, good physical and chemical property, so that the proportion of mechanical wear on the cutting process is small.

But, laser generated Lamb waves had wide frequency bandwidth, low directivity, and low sensitivity, so that there has been great efforts to improve these properties.
Table 1 summarizes the design parameters and performance factors.
Slit design parameters and performance factors Fig. 4 shows the simulation results for focusing strength when the slit parameter is individually changed, where other slit parameters are fixed to the standard value shown in Table 1.
Simulations for other performance factors also have been carried out, however the results are not shown in this paper due to the limit of space.
Takemoto, "Non-contact estimation of thickness and elastic properties of matallinc foils by the wavelet transform of laser-generated lamb waves" NDT&E International, Vol. 32 (1999), p 21-27

Introduction The corrosion of steel rebar is one of the main factors for reinforced concrete properties of structure degradation, which make the section area of the steel reduced, properties of mechanical degraded, the bonding between reinforcement steel rebar and concrete degraded.
Corrosion rate was affected by the thicken layer and corrosion potential dropped with the corrosion increased.
Thorough experiment factors to improve the calculation method.
Experimental research of mechanical performance of corroded reinforcement[J].
Controlling factor of macro-cell corrosion rate of reinforcement in concrete with high proportion of chloride.

Various parameters affecting SPE efficiency including the eluent and its volume, adsorbent amount and sample volume were systematically studied.
Among them, the single-walled carbon nanotubes (SWCNTs) have attracted significant attention due to their unique properties such as high electrical conductivity, chemical stability, mechanical strength, large specific surface area, and high thermal stability, indicating potential for the various applications [12-14].
Results and Discussion Optimization of SPE Conditions using SWCNTs as Adsorbent In order to investigate the performance of SWCNT as a SPE adsorbent for enrichment of the targeted analytes, the main experiment conditions affecting the extraction efficiency were optimized including the type of eluent and its volume, the adsorbent amount and the sample volume were investigated based on the preliminary experiment results.
As an adsorption material, its adsorption capability was an important property.
c ASF: the asymmetry factor of the peak.

Briggles [3-4] constructed an indicator of a new life cycle support standard with five factors: supply of raw materials (logistics), design, construction and the production process in perspective of data information.
Time span of life cycle of ship Ship has a certain time span from market demand to dismantling , the factors affected the span are : the transport distance of raw materials supply ,and time must stay - molded from raw materials to the hull until the trial.And therefore ship irregular trajectories resulted from uncertainty of subjective decision makers was not analysed,to identified time span with a comprehensive and qualitative angle.
Product and transport are analogy to ship and combined with its properties to explain connotation of its life cycle.
In the ship operation, ship maintenance because of working for a long time result in mechanical loss, so that mechanical equipment needed to make the necessary repairs and maintenance, which were a necessary part of the operation process.
To qualitatively analysis and evaluate the factors such as green performance and environmental pollution based on the theory of life cycle of ship and space-time network model.

The Microcontact Analysis of Contact Length Between Wheel and Workpiece in Precise Grinding Jeng-Haur Horng1,a, Chin-Chung Wei2,b, Yang-Yuan Chen3,c, Yuh-Ping Chang, 4,d 1,2,3Department of Power Mechanical Engineering, National Formosa University, Taiwan 4 Department of Mechanical Engineering, Kun Shan University, Taiwan ajhhorng@nfu.edu.tw, bccwei@nfu.edu.tw, ctd7211@gmail.com, dypc0318@mail.ksu.edu.tw Keywords: contact length, surface roughness, microcontact mechanics Abstract.
Analysis of Theory When calculating true contact length, three factors should be considered: (1)geometric contact length, (2)deformation contact length and (3)grain contact length of the surface roughness effect.
It is apparent that under the same depth of cut, the roughness factor of aluminium is largest, followed by copper and EN9 steel, both of which have similar roughness factors.
Conclusions Elastic-plastic mechanics and the microcontact theory have been used to analyse contact properties between a grinding wheel and a workpiece to investigate the relationship between surface roughness and the contact length of the grinding wheel.
It has been revealed that parameters associated with surface roughness were indeed the main factors in affecting contact length.