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This is because the probability of recombination is closely related to the number of grain boundaries and the level of recombination of the fill factor [22].

This may be due to the movement of grain molecules.
But owing to rupture at elevated temperature, the G'' value decreases suddenly at around 155°C, which remains constant up to 250 °C. 4) Laminated glass has a higher damping factor (tan delta) than pure glass. 5) Displacement with respect to temperature increases as the number of lamination layers increase. 6) Cole-Cole plots for double-sided laminated glass are found in both regions of the graph as opposed to non-laminated and single-sided laminated glass, which show the plot only in the first region.

The relative densities of the samples were fluctuating around 99 %, so the grain coarsening should be the main reason of inferior properties.
It can be seen that when a small amount of W (0.5 at. %) is added, a large number of WAl12 phase have appeared on the tensile fracture of the sample (see Fig. 8(a)), and the diameter of WAl12 particle is around 6μm in the magnified view.

The air bubble release device made from porous material having an average grain size 130 microns and 14.15% pore volume shown in Fig. 2 can generate air bubble diameter less than 1 mm.
Acknowledgments Financial supported from the faculty of engineering, Prince of Songkla University under the contact number ENG-57-2-7-20-0198-S.

The engineers want to guarantee that the reliability of the steel is high and without any risk of grain-boundary embrittlement.
(9) is the total number of test temperature points.

N this picrure the grain with dendritic phase placed between is clearly seen.
Acknowledgements The authors would like to thank the financial support of the research from Ministry of Education and Science of Russian Federation under Grant of Prezident of Russian Federation “The science-based methodic of hardening by plastic deformation by complex local deformation technological processes for reaching target product properties development” Number MK-6156.2016.8.

Milling process takes place since the thickness of the milling work piece reaches the acr value (Fig. 3), which depends on a number of factors, including: the feed per tooth Sz tooth, the tool tip radius r, the milling tool geometry: diameter D, cutting angle β, front angle γ and wood materials elasticity ...., Fig. 1.
The tool is sharpened on the 3E642 tool grinder with a fine-grained grinding wheel, before being smoothened with diamond powder.

It is well established that a material can be considered "nano" when the grain size scale extends from the molecular level (0.1 nm) up to around 100 nm; that is, from a physico-chemical point of view, it extends from the scale of the chemical bond, where its behaviour is governed by quantum mechanics, to the mesoscopic systems (100 nm), at which specific models still are needed, before passing to the macroscopic level
Manufacturing processes have been designed to take advantage of the following effects: a) New physical, chemical or biological properties derived from the grain size scaling.
b) New phenomena due to the reduced grain size, where interaction length scales become comparable to the size of the particle, crystal or grain microstructure.
Then, we created a catalogue of pore size distributions [60] according to different conditions of particle coordination number and compaction according to the features obtained from its pore space.
Eq.(1) can be considered as the form factor P(q) of the heterogeneities, then the total scattering cross-section becomes I(q)=P(q)S(q),  and S(q) being the particle number density and the structure factor, respectively.

Sixteen polycyclic aromatic hydrocarbons adsorbed onto fine- (PM2.5) and coarse- (PM10) grained samples were analyzed by gas chromatography-mass spectrometry (GC-MS).
PAHs are numbered among these PMs, and studying the concentration, distribution, and sources of PAHs has become increasingly important in large cities like Beijing [12,13].
Table 1 Sampling sites descriptions in urban functional zones and rural site Sampling sites Pollutant situation Numbers of Samples PM10 PM2.5 CUGB on the roof of a six-story building at the China University of Geosciences (Beijing) containing many fume cupboards. 36 36 AMMS on the roof of a five-story residential building in the Academy of Military Medical Sciences, approximately 80 m from a busy one-way street near the Lize Bridge. 6 6 BUCT in a residential district on the campus of the Beijing University of Chemical Technology close to two restaurants and 100 m away from the north side of a heavy traffic crossing (the Heping West Bridge). 6 6 ZGC close to the northern gate of the Zhonghai electronic market, where there is high traffic, high population density, and barbecue cooking. 6 6 QM on the floor of the Qingxiang Hotel, about 40 m away from Qianmen Street with high traffic volume, near the main downtown commercial district. 36 36 CFRC on the ground, 3 m away from the
For example, in 2001, Schnelle-Kreis et al. found that, in most cases, the amount of PAH associated with coarse-grained particles was <10% of total area PAH. 2.2.

In fact, larger particles upto a few hundreds of nanometers would be still interesting as long as the number of surface atoms is comparable to the number of bulk atoms.
Naturally occurring nanoparticles also include ultrafine sand grains of mineral origin (e.g. oxides, carbonates).
As such, the calculation of diameter of grain from FWHM of the peak can over estimate the real value since the larger grains give strong contribution to the intensity.
The broadening of the peak is due to a small number of crystal planes.
There are a number of drawbacks to the TEM technique.