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During the crushing process for the production of coarse aggregate from concrete waste, a large portion of material is reduced to grains smaller than 4 mm.
A back-scattered electrons detector was employed to produce images with atomic number contrast.
This fact is associated with the production type of the aggregate and the mechanical strength of recycled grain aggregate.
It is observed that crushed aggregates have a large portion of fine grains, even when originated from granitoid rocks [12-13] that are more resistant than recycled aggregates.

RESULTS AND DISCUSSION Mechanical Behaviour, LCF―The influence of microstructural instabilities (phase transitions, coarsening, grain growth) and their influence on transient mechanical behaviour (softening or hardening) are clearly visible from the stress-strain hysteresis loops.
While a T7 pre-treatment mainly leads to grain coarsening, particles and precipitates which improve the high temperature creep behaviour, the HIP-modification reduces mainly the porosity content.
Long time exposure at both temperatures leads to phase transformations, coarsening by approx. 20% and to grain coarsening eight times higher at strain amplitudes of 0.2% at 400°C.
In comparison to the HIP + T6 combination mean inelastic strains develop delayed onto higher cycle numbers while for T7 inelastic strains are measured already from the very first cycle.

Toney et al. [6] and Horvath et al. [7] suggested the formation of CuO led to the reduction of Cu peak intensity with the rising of oxide peaks and thus contributed to the refinement of Cu grain size.
This was attributed to the released of accumulated strain that caused grain coarsening [16].
Besides, the high dielectric constant also caused the entrapped air coupled with microwaves, which enable pores closing without much coarsening of grains [3].
Acknowledgements The author would like to thanks to Universiti Malaysia Perlis (UniMAP) for financial support under Seed Money Grant (Grant number: 9014-00009).

However, porous components based on Ti2AlC are promising candidates for a large number of functional applications such as heat exchangers, filters, lightweight structures, catalytic supports, etc [7].
The formation of elongated grains (~ 30 – 40 µm) during the sintering process is very important in order to provide mechanical stability to the porous structures, especially for the structures with high porosity.
Mechanical properties of the porous structures are not measured in this work, but several works reported about the importance of these elongated grains on the mechanical response of Ti2AlC compounds [1][16].
Regarding the matrix, elongated grains with the characteristic layered structure of Ti2AlC were randomly oriented.

The first reason for this is the high corrosion resistance of a number of amorphous alloys in aggressive environments.
The surface morphology have been surveyed with atomic force microscopy [5] to show the following: the outer surface of F1 alloys contact side is completely crystallized; the average grain size is 80 nm; the free side is amorphous with small crystallized areas; the grain size on the crystallized areas is 20 nm; both sides of F2 and F3 alloys are crystallized.
The grain size is between 25 and 80 nm.

Control of the microstructural characteristics such as grain size, shape textures, porosity, density and packing factor is vital for ensuring the reliability of TiN films in structural and functional applications [3].
This is because the number of electrons in N2 is less than that in Ar.
The deposited nanocrystalline TiN film exhibits a characteristic pyramidal grain shape with crystallite sizes that increases with increasing working pressure.
In particular, TiN film deposited at 7 Pa shows an amorphous like structure without any grains.

Drying has been applied to different materials, such as: grains, fruits, vegetables, wood, ceramic products, etc.
In the heating process the heat causes physical-chemical transformations in the clay mass, allowing the development of new crystalline phases and the welding of the grains.
The mean velocity in the central plane was calculated and, from the calculation of the hydraulic diameter, a Reynolds number of approximately 12000 was found, characterizing a turbulent flow.
Okos, Drying theories: their bases and limitations as applied to food and grains, Advances in Drying, Vol. 1, Mujumdar, A.S.

In connection with the peculiar microstructures, the NiTi shape memory alloy (NiTi SMA) offers excellent properties, such as large output, superior shape memory characteristics and higher yield stress for plastic deformation, which make it very attractive for a number of new applications [1].
It has been found in the foregone researches that there are inevitable defects in large-areaed NiTi SMA thin film deposited on PZT substrate, such as inhomogeneous component distribution, local crystal defect and grain-oriented column structure [5].
Figure 8 shows the cross section images of the prepared composite samples with different physical dimension L fixed M=1mm.Through observation and comparison of the images showing in figure 8, it is found that the shape of the crystal grains in NiTi SMA thin film appears an equilateral polygonal geometry in L=2 mm, and that with creasing physical dimension L, the shape of the crystal grains losses gradually equilateral polygonal geometry and becomes complete oriented columnar in the L=5 mm.

The workpiece material is fine-grained EDM graphite of grade ISO-63 (Toyo Tanso Inc.) with average grain size of 5 µm, density of 1.82 g/cm3, Shore hardness of 80 and flexural strength of 79 MPa.
The cutting tools were Φ2 mm four-flute carbide micro endmills with AlTiN coating (PINDIN, made in China), which were made of the carbide substrate ISO K30 with carbide grain of about 0.4-0.6 µm, AlTiN coating of about 2.5 µm in thickness, rake angle of 10 o , relief angle of 8 o and helical angle of 20 o .
The tooth passing 6 0 2 4 0 500 1,000 1,500 Frequency (Hz) Magnitude (N) (39 Hz) (83 Hz) n = 30254 rpm, v = 190 m/min φ 2 mm AlTiN coated flat carbide endmill Fig. 7 Force harmonics at uncut condition Natural Frequency 1 Natural Frequency 2 1st Harmonic 2st Harmonic 3st Harmonic 2 4 6 8 Wear area Aw (x 10-2 mm2) 0 Magnitude (N) 3 6 9 12 Fig. 8 Force harmonics variations with tool wear frequency under the experimental condition is 2017Hz, which can be calculated by the product of spindle rotation speed (30,254 rpm) and the number of tool teeth (4) divided by 60.

Transform farmer’s market infrastructure of the county and key township, establish and perfect a sound marketing network body, comprehensively recycle a large number of discarded vegetables, human and animal excreta and other waste market generated during market operations each day, and scrap leaves and other wastes in the process of agricultural processing, build biogas plants near agricultural products wholesale market and farm product processing factory, biogas to be reused for providing residential energy resources for the wholesale market and local farmers, biogas residue and biogas slurry are used as fertilizer for agricultural production base and farmer’s small-scale vegetable cultivation (Figure 3).
Accelerate the development of flour, food, wine and small grains processing industry, forming food further processing industry chain.
Take full advantage of rural abundant straw resources, vinasse generated from wine-making enterprises and other waste resources, accelerate the development of straw, grass meal, grass grain, grass cake, bale and protamine animal feed, forming fodder grass processing industry chain (Figure 4) . 3.2 coal and coal chemical industry chain of circular economy.
Give full play to brand advantage of "Pingliang Golden Fruit" and "Pingliang Red Bull", Center on the construction of large-scale planting base of agricultural products like fruit, vegetables, minor grain crops and forage grass and the construction of professional breeding base of animal by-products like beef and pigs, and depend on key enterprises of agricultural products processing, to positively carry out the development patterns “leading enterprise+basement+peasant household”.