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Recent research on application of carbon nano tubes (CNT), both single-walled and multi-walled, shows significant increase in mechanical properties of concrete.
The size and exceptional mechanical properties of CNT show their high potential to be used to produce high performance next generation cementitious composites.
A comprehensive study [12] conducted by one of the authors also found improved mechanical properties of MWNT reinforced cement composites.
A number of factors such as particle aggregation, rapid hydration, a high water to cement ratio, and the lack of gypsum can be hold responsible for this phenomenon.
Gum'ko: Small but Strong: A Review of the Mechanical Properties of Carbon Nanotube-Polymer Composites.

The static load capacity and dynamic mechanical property of this new type disc spring vibration isolator is validated through the static load tests or fatigue analysis.
The nephogram of safety factor is shown in Fig. 6, so as to know that the minimum safety factor is 1.3568>1.
Fig. 6 Nephogram of safety factor.
Mechanical Property Test of Disc Spring Vibration Isolator The new type disc spring vibration isolator (Fig. 7) is set as the research object, comparing with the rubber vibration isolator (Fig. 8), so as to verify the bearing capacity and the effect of vibration isolation.
Conclusion Based on the theoretical research and finite element simulation, the paper analyzed the static load and the dynamic mechanical property of this new type disc spring vibration isolator.

However, conventional fusion welding processes result in deterioration of the good mechanical properties of these ultrafine-grained materials due to the drastic grain growth of the ultrafine grains.
Thus, this process would effectively alleviate deterioration of mechanical properties of the ultrafine-grained materials.
Due to these positive factors, ultrafine-grained materials show great potential for practical application in the near future.
However, conventional fusion welding processes result in drastic grain growth of ultrafine grains in the heat affected zone (HAZ), which causes deterioration of the excellent properties of these materials [11,12].
Thus, FSW is potentially an effective welding process to retain the high mechanical properties of ultrafine-grained materials.

The mechanical properties of oxide scale are attributed to temperature [4].
Surface roughness the other factor, is a core quality feature of hot rolled steel strip.
A number of factors, including porosity, oxide scales present in the layer, and the chemical compositions of the steel influence the formation of wustite [6], determine the strength of the oxides scales and therefore the coefficient of friction.
On the other hand, oxide scale can help reduce wear by protecting against loss of metal due to mechanical damage [7].
Gleeble 3500 thermo-mechanical simulation system was adopted for the short time oxidation tests.

Plastic molding process is the combined effect of many factors, often taking into account the flow field, thermal field, force field, etc.The thermal field and force field such as the role, in the end reflected in the flow field, so the flow field becomes the key of plastic molding.
Due to the structure of injection molded parts are usually more complex, the plastic melt flow in the mold cavity is a non-isothermal non-steady-state process, and the melt showed a strong non-Newtonian properties, so the study on the injecting flow is quite complex .
Plastic production design can be realized, plastic molded process design, plastic mold design, plastic molding equipment select, material properties and parameters design, such as modeling engineering database and to do numerical analysis.
Weld line of the molecular orientation strongly changes, at the location mechanical strength will be significantly reduced, affecting the overall quality of roducts, the overall strength of the damage plastic parts.
The weld lines distribution was chaotic by scheme 2, but a little far away from the key hole. scheme 3 central weld lines is longer than scheme 2 , and in key positions, after molding of plastic parts is very detrimental to mechanical properties.

Chitosan is available in a wide range of molecular weights and degrees of deacetylation, which are the main factor affecting the particle size, particle formation and aggregation [3].
The chemical fixation treatment applied to cellulose fibers is known as durable press finishing (DP) and it is of increasing interest in textile industries as to increase textile properties, such as anti-odour, low-shrinkage capacities and wrinkle resistance, as well as antimicrobial properties.
These materials have several constraints like the reduction of mechanical properties, fiber degradation, but above all, the release of toxic and irritant formaldehyde vapours during DP process and even during storage [6, 7].
Results and discussion Tensile Strength of Composite Fibers Influence of three types of chitosan compounds on mechanical properties of composite fibers is illustrated in Fig 3.
Spray dried chitosan (SP) and soybean oil-g-chitosan (SB) could impart the increased tensile strength properties of composite fiber.

New groove pass series for long products must be developed by backward engineering starting with the necessary mechanical properties and geometry of the final shape, with a highly iterative manual effort and with numerous manual decisions.
Starting from the final material properties a backward calculation of the cooling line will fix the desired final material properties.
Numerous empirical and physically based model approaches have been published for the calculation of mechanical properties at room temperature for different steel grades [6, 7, 8, 9].
"A Mathematical Model to Predict the Mechanical Properties of Hot Rolled C-Mn and Microalloyed Steels."
Modeling of the Microstructure and Mechanical Properties of Steels during Thermomechanical Processing. 1.

The domestic and foreign scholars had done a lot of research for the study of the use of saline-alkali soil improver, which founded that the Soil amendment can improve soil properties to a certain extent, reduce soil salinity and pH [3-5], but it just played a role on the surface soil, did not prevent the salt gathered a large number to the surface that results from the increase in shallow groundwater, soil evaporation and other factors, which seriously affected the growth and yield of crops, thus weakening the effect of the modifier [6-7].
It becomes one of the major obstacles restricting factors in the area of agricultural development [10].
Factor Effect Analysis The main factor effects analysis The direction of the impact on yield by the two factors can be seen from the positive and negative of time coefficient of the regression equation.
With both the amount of the two factors increased, the trends increased in corn production.
Effects of Soil Combination Amendments of Gypsum and Natural Organic Matter on Chemical and Physical Properties of Salinized Fluvo-aquic Soil and Maize Yield[J].

At present, the research on the properties of rubber asphalt mostly focuses on high and low temperature properties, thermal aging and UV aging.
Generally, LVE is determined by rubber asphalt, loading temperature, frequency and other factors, higher the modulus, smaller the value of LVE.
Evolution of the Structure and Properties of Crumb Rubber Modified Asphalt in Aging Process.
Study on Properties of Ultraviolet Aged Rubber Asphalt.
Research on Technical Properties of High Viscosity Rubberized Asphalt Modified with Compound.

Apart from that, results of tensile test indicated the weldment has affected the strength and ductility of the two different fillers selected.
Introduction The series 6000 aluminium alloys are widely used in structural applications due to their heat treatable and specific mechanical properties, corrosion resistance and formability from simple to complex profiles by extrusion [1].
The distribution of porosity in weld nugget depends on many factors, such as chemical compositions of the material and welding condition.
The magnesium content in ER5356 filler metal increases the mechanical properties of weldments through solid solution strengthening and improves strain hardening potential [19, 20].
[3] W.H.Cubberly (ed.): Properties and Selection, Nonferrous Alloy and Pure Metals, in ASM Metal handbook, 9th Edition, Volume 2, Materials Park, Ohio, (1979), p.193