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The grain size of FNS used in this study varied from 0.075 mm to 0.4 mm as result of the cooling process of Smelter Feni 4, Aneka Tambang Company, Indonesia.
Acknowledgement The authors would like to thank the Vlir-Uos, Belgium for providing the financial support to this research project (The South Initiative 2020-2021) with contract number: ID2020SIN281A101.

Especially, particulate reinforced Al MMCs have received considerable attention over a number of years because of their improved mechanical and wear resistance properties，availability, low cost, and isotropic properties[3,4].
In the case of the composites, there are three typical morphologies as follows: dark gery α-Al matrix, white net-like phase existed on grain boundary, and fine particles phase dispersed in the matrix uniformly.

It is caused by the two main factors[5]: (1) the straw is a microporous material by itself and has good thermal insulation performance. (2) due to existence of straw fiber, big air bubbles introduced into slurry water is cut into small bubbles by large number of fiber, and the average pore size in the material is thus reduced, which helps to improve the thermal insulation.
Therefore, the larger the size of grain and pore, the lower the thermal conductivity of straw boards will be.

Table1 Parameters of different simples Sample number Fe3+:Fe2+ (mol rate) TEOS (mL) rotate speed ( r/min) SiO2:Fe3O4 (mass rate) note 1 2:1.2 0 200 0 pure Fe3O4 2 2:1.2 0 300 0 pure Fe3O4 3 2:1.2 0 200 0 pure Fe3O4 4 2:1.2 8 200 56.3% Fe3O4@SiO2 5 2:1.2 12 200 84.5.% Fe3O4@SiO2 6 2:1.2 14 200 98.5% Fe3O4@SiO2 7 2:1.2 16 200 112.6% Fe3O4@SiO2 8 2:1.2 16 300 112.6% Fe3O4@SiO2 Experimental Procedure Iron chloride hexahydrate (FeCl3·6H2O) and iron dichloride tetrahydrate (FeCl2·4H2O) were taken as raw materials in chemical-coprecipitation process to produce Fe3O4, and ammonium hydroxide (NH4·OH) taken as precipitator, and ethyl orthosilicate (TEOS, volume concentration is 28%) was taken as source of SiO2 during Sol-Gel process.
Figure5 The coercivity of magnetic materials and its dependence on the grain size [9] Summary (1) The average sizes of Fe3O4 and SiO2@Fe3O4 nano-magnetic particle produced were 10 ~ 20 nm, which below its critical dimension of superparamagnetism; (2) XRD results showed that amorphism SiO2 coexisted with Fe3O4.

It will attract a large number of different levels of tourists, and promote the development of Lianping county tourism economy.
Raising pig Planting grass Raising chicken Green Vegetable Base Fish farming Fig. 1 Ecological agricultural chain Grain Fish Fruit Vegetable Fuel Pigs Biogas Fig. 3 Ecological landscape chain Fig. 2 Ecological energy chain Function division in the tourism area According to the characteristics of resource in the tourism area, it is constructed to “a shaft four area” of integral space structure.

Numbers in Fig. 2 is the sum of both metal ion concentration.
Although the grain sizes were different each other, all the Bi-Te films of Bi2Te3 crystal structure exhibited the polycrystalline morphology.

Introduction Under the thought "the network is the computer"[1], cloud computing put a large number of compute, storage, software, and other resources together to build a huge scale shared virtual IT resources pool.
Reference [8] achieved a data-level and task-level AES parallelism on a fine-grained many-core system.

The as-built microstructure of Ti-6Al-4V DED material exhibits the typical martensitic structure expected after cooling rapidly from the beta phase field, while HIP’d and aged material shows the expected grain boundary alpha and inter-granular coarse alpha plates.
Tensile properties of Ti-6Al-4V Fabricated by a number of Additive Manufacturing techniques are shown in Figure 4.

Material specification and experimental investigations The cold formed spring material comprised fine grained (50 μm) induction hardened tempered martensite steel with elemental composition given in Table 1 and mechanical properties: Ultimate tensile strength 1921 MPa; Young’s modulus 225 GPa; Poisson’s ratio 0.284.
Acknowledgements The authors acknowledge support from Necsa, as well as ANSTO for the beam time awarded on the KOWARI instrument under proposals numbers 694 and 1291.

The dry material was disintegrated, and milled in a model TIGER hammers mill, and grain size classified in ABNT no. 80 sieve.
After collected, the Clay was dried in natural environment, handles crumble and milled in a Tiger model hammers mill until pass trough number 80 sieve.