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In these regions, the rutting problem is particularly prominent, and the local maximum rut depth of some serious deformation reaches 60 ~ 100mm, seriously affects the traffic safety and operational quality, shorten the service life of asphalt pavement.
The load condition of the long uphill sections is different from the general sections, and the research on laboratory simulation and mechanical analysis is necessary.
The classic WLF equation of time-temperature equivalence is by Williams, Lanbel and Ferry  of three scholars, and named after their first letter combinations: (1) Type: aT- shift factors; C1, C2- two empirical parameters; T, Ts - is converted temperature and the reference temperature respectively, ℃; τ, τs - is relaxation time  at temperature of τ and τs respectively, s.
The equation is abroad used as a shift factor calculation model of viscoelastic material. 
The Rutting Test It is well known that the asphalt mixture is a kind of viscoelastic material, but also with the viscoelastic properties of time-temperature equivalent.

There are several ways of preparing MWCNT-alumina hybrid such as mechanical blending, magnetic stirring and sonication mixing of MWCNT and alumina together using mechanical approach, and some of researchers used to prepare the hybrid particles using chemical approach such as methane decomposition [7-11].
In methane decomposition process, there are many parameters that affect the properties of MWCNT-alumina hybrid particles such as type of catalyst, calcination and reduction temperature, calcination and reduction time, gas flow rates, methane decomposition temperature, and duration of methane decomposition [10-11].
Fig. 2: HRTEM images of synthesized MWCNT-alumina hybrid [13] Random morphology and catalytic activities of nickel catalyst are believed to be the factor of variation in MWCNT layers for each single MWCNT.
This homogenous distribution of MWCNT on alumina surface is necessary to optimize the effect of MWCNT-alumina hybrid properties as reinforcement in polymer matrix composites.

These building structures are strictly evaluated in terms of their thermal technical properties.
Although the building envelope has excellent thermal insulation properties it does not mean that the building envelope is designed correctly.
Mechanical and Physical Properties of Straw Bales.
Study of the Properties of the Environmentally Friendly Insulation Materials.
Thermal Properties of Wooden Buildings in Relation to Computer Software.

The second layer is a cover enamel designed to give the coating the required consumer and decorative properties.
Therefore, further studies of the indicated properties of the developed enamel coatings on steel were carried out.
The resulting colors make it possible to expand the scope of enamel coatings, improve their aesthetic and consumer properties.
Effect of alkali metal oxides on the properties of titanium containing glass enamels, Glass and Ceramics. 2007, V. 64.
Influence of mill additives on vitreous enamel properties, Materials & Design. 2014.

As a result of these investigations, it was discovered that overdose on admixtures causes a loss of quality in concrete's physical and mechanical properties.
Mailvaganam, Factors influencing slump loss in lowing concrete, ACI Special Publication. 62 (1979) 389–404
Pigeon, Effect of superplasticizer dosage on mechanical properties, permeability, and freeze-thaw durability of high-strength concretes with and without silica fume, ACI Materials Journal. 93(2),(1996)111–120
Neville, Properties of Concrete, fifth edition, Pearson, London, UK, 2011
Price, Factors influencing concrete strength, ACI Journal Proceedings. 47(2),(1951) 417–432

Poisson's ratio is the main factor affecting the qualitative character of deformation of an elastic material.
Accordingly, depending on rope design, its loading force and properties of rubber, a portion of rubber deformation energy is lost.
General qualitative character of stress distribution coincides, because for both cases the factors of disturbance of an SSS are a change in cross-section shape of an elastic shell in an area of cables.
These factors cause deviations from stress distribution in a long prismatic element loaded with a concentrated moment applied in the middle of the element.
Thus, in the absence of such factors, an SSS is antisymmetric.

Researchers applied various methods, either destructive or non-destructive [2] to measure wood properties including specific gravity.
Diversity in properties from samples to samples is one of the reasons that limit the utilization of timber materials.
Even though strength of this kind of materials is controlled by several factors, cell wall property, fibre direction, inter-laminar property [4], etc., density is found to be one of the most important parameters.
For the same reason, it is also more practical to express the mechanical properties of timber as functions of the ratio of cell wall area to the entire cross section area, instead of using the dimensions (thickness, length, or width for examples) of a particular polygon to describe them.
The purpose of the macro level image processing is to separate the darker rings from the brighter rings and obtain their global area ratios which serve as the weighting factors in the calculation of the overall cavity rate.

Introduction Knowledge of the stresses developed within the ceramic femoral head is of prime importance since they can affect the outcome of total hip replacements [1].
Model material properties Material Young's Modulus [GPa] Poisson's Ratio Ti6Al4V 115.00 0.28 Alumina 380.00 0.22 Long tapers were used to present the "worst case " scenario with respect to the peak stresses developed within the femoral head and male taper.
One important mechanical consideration that is not taken into account by the BC 2 conditions is the flexural rigidity of the male taper.
There are many other factors (boundary conditions) not taken into account in this study, such as other muscle forces across the hip joint other than the joint reaction force used, the application of the femoral head to the male taper (whether it was" put" on or" impacted" to the male taper), the corrosive biological environment and the fatigue characteristics of the materials modeled.
The application of the appropriate boundary conditions including complex material property behavior to the FE models may help in predicting the stress fields and optimizing future designs.

As the key part of the motion posture and trajectory control of unmanned systems, its performance directly affects the performance and safety of the motion control system.
Refer to fatigue, if the loading history, boundary conditions and material properties are known, the stress and strain analysis of the established virtual geometry model can be conducted through the finite element method, and then based on the stress and strain, the fatigue life distribution in the virtual model can be obtained through life analysis combined with the corresponding fatigue theory. 1 Several methods of fatigue life prediction S-N nominal stress method is an empirical method which takes alternating nominal stress as the main parameter to predict the fatigue failure cyclic number (total lifetime).
It points out that the fatigue crack propagation of metal materials is mainly controlled by the range of the stress intensity factor.
Currently, a large number of crack propagation rate curves of engineering material are obtained, and the stress intensity factor solutions of various components with cracks are established, so these theories are widely used in engineering.
The typical ones are such as multiaxial fatigue, thermo mechanical fatigue, frequency domain fatigue, welding spot and weld bead fatigue, corrosion fatigue, composite fatigue, contact fatigue and so on[2].

Synthesis of High Aspect Ratio Iron Oxide Nanoparticles Using Water in Oil Microemulsion M.Suhafria , I.I.Yaacob b Centre for Nanotechnology, Precision and Advanced Materials (CNPAM) Department of Mechanical Engineering, University of Malaya, Malaysia a ok_ker@yahoo.com, biskandar@um.edu.my Keywords: High aspect ratio; Microemulsion; Maghemite; Superparamagnetic; Abstract High aspect ratios maghemite of iron oxide nanoparticles were prepared using water in oil microemulsions.
This is mainly because of the dependence of their properties on the shape and size of the inorganic nanocrystals. [1].
The sizes are different from the diameter or length of particles observed by TEM and cannot be explained on the basis of shape factor.
This is due to the various contributions such as particle size and shape defects including pores, dislocation and point defects that affected the X-ray broadening line. 25 35 45 55 65 75 85 2Theta (degree) Intensity SD (24hrs) SC (12hrs) SA (4hrs) (220) (311) (400) (422)(511) (440) Figure 2: XRD diffraction of SA (4hrs), SC (12hrs) and SD (24hrs) Hysteresis curves of the samples measured by AGM at room temperature are shown in Figure 3.
-40 -30 -20 -10 0 10 20 30 40 -10000 -5000 0 5000 10000 H (Oe) M (emu/g) SA (4hrs) SD (24hrs) SC (12hrs) Figure 3: Hysteresis curve of the samples with the applied field at 10kOe Summary High aspect ratio maghemite (γ-Fe2O3) nanoparticles with superparamagnetic properties were successfully synthesized using water in oil microemulsions.