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Many factors influence the rate and effect ASR, from ambient conditions to the composition of the concrete mix.
Although much work has been done to determine the properties of silica gel formed like the latest work of Leeman et al [1], where it is the key point to determine the damage induced from ASG.
However, modeling silica gel is needed to explain the rheological behavior of concrete affected by ASR, knowing the complication that takes to seize the mechanical and chemical mechanism.
Fig. 3 Cross section of REV and presentation of the impact of ASG The results show the mechanism of deformation and damage at the mesoscopic scale (see Fig. 4) , where the stress is maximum at the gel silica formed / aggregate (see Fig. 1) interface; after a short time the mechanical resistance of loose aggregate join the critical threshold and deformed without returning to its linear elastic behavior, unlike the silica gel formed and the cement paste which they have mechanical properties reduced compared to the aggregates (see Table 1) but they have absorbed more stress subsequently more energy than the elastic behavior aggregate (see Fig. 5), which is explained by the rheological behavior of each material.
Multon, et al., Concrete modelling for expertise of structures affected by alkali aggregate reaction.

The amount of metal binder significantly affects the properties of cermet tools.
However, it was shown [1,12] that behaviour of multiphase materials cannot be evaluated by only a measured mechanical characteristic or by complex of bulk properties.
Overview of the composition and mechanical properties of the materials examined in this study are listed in Table 1.
Composition and mechanical properties of the materials.
Some advantage of mechanical properties of steel over nickel gives some preference to TS cermet over TN at low velocity of impact.

The kinds and characters of waterborne polyester is a key factor to decide the characters of WBPU.
Adding nano-sized materials into the system could endow the WBPU film better mechanical strength and other properties such as resistance to ultraviolet ray, heat insulation due to its small size effect.
Property Representation.
There is little affect of NNCO/NOH on the resistance to water.
(left) Fig. 3, The effect of the DMPA mass fraction on the mechanical characters of WBPU film.

The device applies only to the materials with the unit length having the large enough dielectric loss factors, and when there is the work load the available bandwidth is too narrow.
They measured the frequency, and the dielectric properties of the polymers change in the temperature and when the temperature is constant, the dielectric properties change with the frequency.
Using the dielectric loss factor ε ", the dielectric loss tangent of tan δ and the oscillator strength which is the static dielectric constant, as the standards to measure the processing properties of the polymer microwave, we study the microwave absorption properties of a series of different chemical and physical structure of polymers, and then this method is applied to the preparation of composite materials and polymer blends.
Tweedyhrrele, et al did the microwave polymerization of the methacrylic acid and the hydroxyl compounds and obtained materials of excellent mechanical properties.
Conclusion The microwave technology can better solve the polymer synthesis and polymer mixture viscosity caused by heat capacity difference, thus affecting the yield and product quality problems.

Results and Discussions Mechanical property: Compressive and splitting tensile strength of concretes was listed respectively in table 3.
It was presumed that some reaction between limestone and cement matrix, might have taken place as revealed in Reference [9] that limestone surface was dissolved and C4AHn·1/2CO2 was produced on ITZ, resulted in micro structure alteration of ITZ, pore structure and hydration products phase in particular, and directly affect mechanical and deformation properties of concrete as displayed in table 4.
Micro structure analysis disclosed that superficial features and chemical activity of aggregates were the primary factors that influenced ITZ structure and concrete performances.
Mechanics characteristics of concrete affected by grain group of aggregate[J].
Thermal properties [R].

Silica and carbon black have been widely used as the main reinforcing fillers for improving the properties of natural rubber (NR).
In a silica-filled rubber compound, it is known that the low compatibility between NR and silica affects the mechanical properties of rubber products.
The functionalization can be carried out by adding a kind of functional group onto rubber chains for improving its properties or resolve a problem of NR following to the target applications.
Properties measurement [4] Bound rubber was investigated in order to study rubber-filler interaction using solubility measurement.
Sakdapipanich, Influence of gel content on the physical properties of unfilled and carbon black filled natural rubber vulcanizates, Polymer Testing. 32 (2013) 1135–1144.

A certain type of general aviation aircraft piston engine with fuel injector has synthetic clearance overrun fault after long time using, causing flight control difficult, and seriously affect the working properties of engine, in the condition of idle state more obvious, easy to cause unsafe events such as engine parking.
Due to the special nature of flight training, hundreds of inexperience training students coarse and fierce manipulation every year, and flight training time is long, take-off and landing are very frequent, aircrafts and fuel injectors put into overload use for a long time, and are based on mechanical transmission way, led the fit clearance between the various parts of the fuel injector to serious overrun.
It can be concluded that the main factors influencing the engine idle operating characteristics is the synthetic clearance between the throttle stop and the idle valve rocker.
Control Method The big fitting clearance and wear out-of-tolerance situation of RSA series fuel injector has become a big hidden danger affecting the safety of flight training.
[4] CHEN Lian, Analysis and Digital Simulation on the Fuzzy Reliability for Interference Fit , Journal of Mechanical Strength, 2007.29

Literature review Droplet spreading is influenced by many factors.
One of the most important factors is surface roughness.
Methodology There are three major processes in the development of the 2-dimensional model which are domain identification and mesh development, solver and properties set up, and model initialization and solution monitoring.
In general, higher impact velocities result in greater values of spreading factors and early splashing as compared to lower impact velocities.
The texture of the substrate also affects the droplet impact behavior.

Influencing factors of icing Meteorological factors that influences icing include temperature, air humidity, wind speed, wind direction, supercool water droplet’s diameter, etc.
In comparison with other factors, wind speed especially affects the formation of granular rime. 4) Supercooled water droplets: Supercooled water mainly influences the type of icing.
These four factors restrict each other, and they are strongly connected.
It represents the falling degree of classification properties, in order to get accurate result, we should choose the biggest I(X, a) attribute as classification properties[3].
Icing type decision tree based on ID3 According to icing forming conditions and properties, icing type can be divided into A, B, C, D, E five different types[4].

Specimens were prepared by mechanical polishing and subject to flow in a simulated body fluid at 37°C for 24 hrs.
The in vitro corrosion behavior of magnesium alloys is affected by many factors such as mechanical strain, temperature, surface area and solution transport conditions (e.g. flow rate).
Hence, the corrosion behavior of AZ31 is affected by the pre-strain from the result.
Therefore, it is considered that the corrosion behavior in fluid flow field is affected by the initial surface roughness. 3) The corrosion behavior was affected by fluid flow rate.
Moitra, Grain size effect on microstructural properties of 3D nanocrystalline magnesium under tensile deformation, Computational Materials Science, vol. 79, pp. 247–51, Nov. 2013.