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Grain boundaries in such materials are much more extensive compared to coarse-grained polycrystals and thus play greater role in their properties.
The effect of non-equilibrium state of grain boundaries on the diffusion properties of UFG metals has been studied elsewhere [12, 13].
The temperature and mode of recrystallization depend on the material properties and the method of the UFG structure formation.
In Structure and properties of inner surfaces in metals (Ed.
Victoria, Nanocrystalline electrodeposited Ni: microstructure and tensile properties, Acta Mater. 51 (2002) 3957-3970

Introduction Forest fire, one of the most frequent occurring natural disasters, much related to the specificity of region climate, vegetation type, and humidity of inflammable matters, has big influence on environment, health and property of human beings.
The traditional method relays on the detection by humans and airplanes, and is based on a large amount of data from affected area and field sampling.
However, some other factors, such as low spatial resolution, would result in the loss of information and misjudgment.
Bülent Saglam created some indices of the factor influencing fire risk and danger [10].
By monitoring NBR, NDVI, DNBR and DNDVI, and comparing to the data of field sampling, the relationship of surface relief and property of soil obtained had great influence on creating the figure of soil corrosion and vegetation recovery.

It was an important factor that affects directly the material removal rate, honing stone wear rate, machining precision and the surface quality [2,3].
It could also be used to monitor the cutting property of the honing stone and improve the machining quality.
American Society of Mechanical Engineers, Tribology Division, TRIB, 10
UPB Scientific Bulletin, Series D Mechanical Engineering, 60(3): 381-388
UPB Scientific Bulletin, Series D Mechanical Engineering, 60(3): 349-355.

That is because similar CTEs pairs separate the length measurement error derived by the magnification factor of the TSs unclearly from the zero-offset value of the sensors.
The residual of the calibration can be affected by the value of the product of the artefact’s CTE and the estimation accuracy of oTwork and by the value of the product of the CMM scale’s CTE and the estimation accuracy of oTscale respectively.
The largest factor of this residual is the estimation accuracy of P.
When applying the substitution method, there needs the calibrated work pieces or standards which has the properties similar to the object to be measured[2]: size, form, mechanical propertied and material including the CTE.
From the practical point of view, preparing similar-property masterpieces are hard to worth the cost because CMMs are used for various kind of work piece measurement in industrial floors.

Furthermore, no casualties due to insufficient consideration of the material properties in the case of aluminium silos were known.
This alloy exhibits no weakening in the HAZ (heat affected zone), so that the material properties are quite homogeneous and the factor ρ need not be used.
∆wkT = 1QRT (6) ∆wkt = 1Q 0,6 Efo(λx-λx,0) (7) As a consequence, this leads to buckling capacities in the elastic domain, which are much higher than would be with steel structures of same properties.
Part 2: Mechanical properties. 2008
Mandara: EN 1999-1-5 Remarks on the alpha factors for aluminium shell buckling.

In general, aluminum alloys are known to exhibit a considerable anisotropy of mechanical properties.
In order to investigate properties along the ND of the plate, it was sliced into four sheets of about 1.2 mm in thickness from the surface 228 Fig. 1.
Calculated Schmid factors for tensile axes of [110] and [112] of fcc crystal having {111}<110> slip systems.
Thus, the Schmid factors for the active slip systems are different unlike the (001)[110] oriented surface-layer and subsurface-layer specimens.
Schematic of F and C types of flow curves. 232 because the precipitates associated with the smaller Schmid factors are subjected to higher tensile stresses than those with the smaller Schmid factors.

The fundamental properties of the strip cast by the single roll caster equipped with the scraper were investigated.
The roll speed, which is the most important factor in roll casting, ranged from 10 m/min to 40 m/min.
Summary The properties of a single roll caster equipped with a scraper were shown in the present study.
The properties of the scribed surface were almost the same as those of the roll contact surface.
In addition, the mechanical properties of the AA5182 strip cast by the single roll caster with the scraper were almost the same as those of the DC cast strip by and hot rolling.

The appropriate actuator, sensor and advanced control method are the key component of the active vibration isolator to enhance their vibration isolation properties.
Hence, the stiffness of the vibration isolator is a key factor to influence on the vibration isolation performance of the passive vibration isolator.
A desirable property is high-static stiffness resulting in a small-static deflection.
The Q(s) shows the low frequency vibration isolation property of the system.
Mechanical spring combined with electro-magnetic actuator Mechanical spring combined with the electro-magnetic actuator is a common configuration such as the series of 25 table vibration isolator of TMC [4].

The analysis and simulation of granule concentration distribution in cross section of spiral slurry pipeline Yu Lin 1,a Ping Lei1,b Xiaodong Zhang 1,c 1School of Mechanical & Electrical Engineering, Guangdong Baiyun University, Guangzhou 510450 China ajxlgjd@126.com, b909801084@qq.com, c1015382769 @qq.com Keyword s: Slurry spiral flow, Stress, Granule concentration distribution, Simulation Abstract: Through the analysis of force acting on granule in slurry spiral flow and movement characteristics of granules, the granule motion equation, the granule size distribution along radial direction, and distribution of granule concentration on cross section of the pipeline were established.
The particles in the slurry spiral flow is mainly affected by the flow drag force, centrifugal force, radial lift force, and the effective gravity.
From formula (3) can be seen, the radial following is relative to particle size, gravity, fluid properties turbulence and other factors.

Fig. 1 Sketch of calculation of sound absorption through walls bounded by low space The total energy beyond the length of free path between two distractions for both the hemisphere is Eq=E00π/2e-bqsinϑdϑ=E01-α/21-α0ϑ11-αcosϑqH.sinϑdϑ+E0ϑ1π/21-cosϑqHαsinϑdϑ (2) where b - decrement in low areas, q - average scattering cross section a - sound absorption coefficient of the two surfaces delimiting space J1 - marginal angle between areas qL<2 and qL>2, ϑ1=cos-1qH2 Scattered sound energy density Es can be written in the form Es=W4πr2c.lbHFsqbr2 [W] (3) Where W - sound power source r - distance energy particles from its inception c - speed of sound Upon sound propagation in low spaces, we can say that the direct sound affects the density of the energy only when the scattered sound disappears, i.e., when qr is very small or the losses are very large.
Directivity factor and index [4] Location omnidirectional source solid angle emitted by a sound source W directivity factor Q directivity index KW uniform distribution in all directions 4p 1 0 location of the source to the reflector, just before it or above it 2p 2 3 source location in front of two mutually perpendicular surfaces p 4 6 source location before the three mutually perpendicular surfaces p/2 8 9 Tab 2.
We proceed similarly, even when two surfaces delimiting the space have strong absorption properties.
Zajac at. el.: Reduce noise and vibration in mechanical facilities (in Slovak), Alfa 1990, ISBN 80-05-00674-8 [2] H.