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Physical properties (moisture content, grain size analysis and specific gravity) of RHA and CCA, the effect of curing age and the effect of varying percentage replacement of cement with RHA and CCA blended cement concrete on the tensile strength of concrete were investigated.
The tensile strength of the 1:2:4 concrete mix of the unmodified concrete at 28 days strength was valued to be 3.39 N/mm2 while that of modified concrete of 10%, 20%, 30% and 40% RHA, and CCA are 3.30, 2.74, 2.69 and 1.63 N/mm2 respectively, showing that tensile strength of concrete decreases with an increasing amount of RHA and CCA and increases with an increasing number of curing age.
Rice husk ash (RHA) is an agriculture's by-product produced from the outer coating of rice grains that were removed during the milling process.
In contrast, corn cob is the main centre of maize on which the corn grains are attached [9].

India is a major producer of food grains, sugar, milk, vegetables, fruits, pulses, and tea, among other commodities.
Sugar, Pulses, Food Grains and Edible Oil Food grains, sugar storage and edible oil packaging present a difficult task.
BIS standards for plastic woven sacks for sugar IS: 14968: 2001 and food grain IS 14887:2000 and packaging have been developed in India.
The suitability of polypropylene PP Woven Sacks for the long-term storage of food grains and sugar has been established by a number of studies and field trials carried out in food storage godowns and laboratories.
Specifically, codes 1 to 6 denote packaging crafted from a particular type of plastic, while code number 7 encompasses a general category encompassing all other or miscellaneous plastics.

By comparing the two curves of lipophilic degree of surface modified ZnO nanocrystals with different morphologies, it could be demonstrated that the optimal dosage of NDZ-311w titanate coupling agent is inversely proportional to the grain size.
TEM and XRD results showed that the grain size of ZnO nanoparticles were much smaller than that of ZnO nanorods, which can be the evidence for the equation.
However, it could be seen a large number of ZnO agglomerative nanoparticles.

SEM observations revealed dense, fine-grained microstructure of ceramic layers, lack of delaminations and cracks and a good cooperation between ceramic and Pt electrode layers.
The number and thickness of ceramic layers in multilayer thermistors were adjusted to achieve proper resistances within a demanded temperature range.
As illustrated in Fig. 2, the microstructure of all the fabricated thermistors is dense and fine-grained.

This brings about an intra-atomic redistribution of Ti electron density in the Ti50Ni50 alloy compared to the pure metal: decrease of the occupancy of the Ti d-shell is countered by an increase in the number of Ti p-electrons.
Due to faster etching of the grain boundaries (dark areas) individual grains with average size of about 1 nm are identified.
As for pure Ti in the Ti50Ni50 alloy, the number of Ti d-states above the Fermi level increases, while the occupancy of the Ti d-shell decreases by about 0.5 el.
Compared with Ti50Ni50, the Ti50Ni25Cu25 alloy exhibits an increase in the number of d-electrons of less than 0.1 el/atom.
It is known that the number of valence d-electrons determines many physical properties of transition metals.

Dislocations, grain-boundaries, phase boundaries, and free surfaces are other types of defects.
It is these granules, not the whole pollen grains, upon which Brown made his observation.
Nowadays a number of methods are available for the calculation of correlation factors.
Correlation factors of self-diffusion in elements are often well-defined numbers characteristic for a given diffusion mechanism.
Grain-boundary diffusion and segregation into grain boundaries was picked up as a further topic.

Large number of the filamentary interfaces offers effective resistance to the plastic flow in the phases [11, 14].
The eutectic colonies between the dendritic arms of primary Cu grains increased with increasing Ag concentration in the alloys.
The filaments broke locally up due to strong recrystallization at 400 ºC and changed into discontinuous clusters along wire axis due to severe propagation of recrystallized grains at 500 ºC.
Arrays of dislocations in the matrix and near interfaces were observed in the grains after superplastic deformation. 3.
At temperatures higher than 300° C, the strength decreased dramatically because recrystallizing and grain propagation removed the benefit from work hardening to result in obvious softening [33, 34, 44, 45]. 4.

Tensile specimen sampling location(a)consecutive solidification(b)simultaneous solidification For the purpose to ensure the accury of test results for mechanical properties, each same part (as the number emphasis marked in Fig.3) manufactured four samples.
The stress concentrated at the grain boundaries, causing brittle primary Si and eutectic Si particles broken, followed by cracks grew along the grain boundaries until the specimens fracture.
The eutectic silicon particles inside the stress frame casting transformed into spherical shape from needle and laths morphology, the grain boundary becomed more dense and more tiny.
Adhering to the fracture surface after breakage, both the primary and eutectic silicon particles were hard and brittle phase, a number of dimple pits distributed on the surface of cracks, enhancing the mechanical properties of the castings.
The STL format model was subdivised with the uniform mesh, the size of grid was setted to 2 millimeter, the gridding number of the gating system after subdivision was 3526870, 0.1 was used as the scale proportion.

The number of developing bonds can be increased by the higher maleic-content of MAgPP and the mechanical properties also improve by this.
After drying and milling, the grain size was set between a grain-diameter of 60- 500 µm.
Microscope photos taken of RH-PP composites a, 16% of rice husk, M=250x, b, 16% of rice husk, M=250x, c, 30% of rice husk, M=200x, d, 30% of rice husk, M=400x composites The significance of the decrease of grain size is proven unanimously by this.
The hole-shape is another physical characteristic that is connected to the grain size.
The specific surface area herewith the possibility of coupling increases by decreases the grain size.

While the magnet tool follows the rotation of pole through the magnetic particles, the relative motion against the inner surface of tubing is generated, the abrasive behavior is indirectly given from magnetic particles to abrasive grains, the precise finishing could achieved.
The abrasive behavior was indirectly given from magnetic particle to abrasive grains, and the precise finishing was able to be achieved.
In this method, because of the effective longevity of the tool is extended, and the size of magnetic particle and abrasive grain can be selected freely, high-precision finishing process could be achieved.
Magnet tool Workpiece If the numbers of magnetic particles in the layer which contact with the workpiece surface and right under the magnetic tool is assumed to be n, the pressure acted on a magnetic particle becomes Fy/n.
The composition and size of the magnet tool and the pole are shown in Table 1.The abrasive slurry was made by the #1000WA abrasive grains and the soluble type finishing compound.