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The tensile strength decreases with decreasing grain size for grain sizes larger than the specimen thickness.
By mean of uniaxial tensile tests and bending experiments, Raulea et al. demonstrated a decrease of the yield strength with a decreasing number of grains up to one grain over the thickness, and an increase with increasing grain size when the size is larger than the specimen thickness [6-9].
With increasing grain size, the number of grains decreases within the specimen volume.
(2) As the grain size exceed the specimen thickness, the tensile strength increases slowly with increasing grain size to a certain extant.
Baaijens: Grain and specimen size effect in processing metal sheets.

The drying characteristics study of grain in the high voltage electric field Haili Li, Xu Ji*, Ming Li, Congbing Leng Solar Energy Research Institute, Yunnan Normal University, Kunming 650092, China * Corresponding author: jixu@ynnu.edu.cn Keywords: electric field drying; electrode form; pin electrode number Abstract: In this paper, the high voltage electric field drying characteristic of corn with different electrode forms and different pin electrode numbers are researched, and compared with rice drying under different pin electrode numbers.
The drying speed of the corn is faster than the rice in the pin-disc electric field drying, and the pin-electrode numbers has much influence on the drying effect, pin electrode number is not the more the better, and there is a best number of pin electrode, in this paper, the best number of electrode is three, however the best pin electrode number is different for different materials.
Introduction Grain is a traditional food of Asian, the traditional drying methods are natural drying and hot air drying, but the natural drying is greatly restricted by climate conditions, and hot air drying is easily damage the quality of grain, and high energy consumption.
The experxment of different pin electrode numbers.
In the pin-disc high voltage electric field drying, pin electrode numbers is not the more the better, however there is an optimal number of pin electrode, but the optimal number of pin electrode is different for different drying materials.

Keywords: pressure; grain moisture; on line measurement Abstract: This paper presents a grain moisture measurement method based on storage pressure.
The software system using visual programming language, combined with MATLAB, established a grain moisture model, to achieve the measurement on grain moisture.
The typical method for grain moisture measurement is Weight Loss on Drying.
The interface is mainly consists of control window, switches, collected data and real-time graph, in order to control the operation of the instrument, and also includes port, sampling channel number, sampling baud rate, output data path, data bits, reading bytes and other operational controls.
Effect of Grain Moisture Changes on the Granary Pressures [J]

In recent years was developed a number of new processes of metal forming designed to produce metal with sub-ultra-fine-grained structure, the basic principle of which is realization in the process of deformation the simple shear scheme.
The number of cycles was equal to 3.
The structure of the deformed copper has a large number of twins (fig. 3a), after the deformation of the annealed copper has equiaxed grains with presence of twins (fig. 3b).
With increasing numbers of passes increases the proportion large-angle borders.
Also with increasing number of passes tends to reduce the number of doubles associated with a decrease in grain size of copper, which corresponds to the equation of Hall-Petch relation for the case of deformation twinning, which should be expected difficulty of the existence of twinning with decreasing grain size.

Citation & Copyright (to be inserted by the publisher ) Grain-Size-Dependent Cooperative Grain-Boundary Sliding in Superplastic Deformation H.
The aim of this work is to examine the grain size dependence of SPD by the use of 3Y-TZP with seven different grain sizes.
lo Journal Title and Volume Number (to be inserted by the publisher) 3 0.05µm), and then etched at 1300 oC for 1hour.
The S-S curve strongly depends on grain size.
-4.4 -4.3 -4.2 -4.1 -4 -3.9 7 7.1 7.2 7.3 7.4 7.5 Maximum flow stress, log ����max[Pa] Normalized grain size, log (R/D) [-] F G C A B E Slope=1.0 D Journal Title and Volume Number (to be inserted by the publisher) 5 the maximum true stress �max is related to R and Do [� �max ( / )oR D ].

The rest of the lattice represents the grains.
For the segregation effect to be simulated we introduce w3 – a jump frequency for a particle to jump from the grain boundary plane to a grain site.
To simulate a thin-film (instantaneous) tracer source, 106-108 particles are created and released from the surface (according to the segregation effect for the purposes of avoiding the possible time-dependent segregation) and allowed to diffuse for a time t (proportional to the number of jump attempts per particle).
These concentration profiles are built up simply by determining the number of particles that have reached a given distance from the tracer source plane after the diffusion time t [16].
Contributions to the concentration depth profile from inside of the grains and from the inside of the grain boundaries separately.

When the recrystallization reaches certain degree, the new-deformed core number and the swallowed number of the original grains are almost the same, and the average diameter is with little change.
The distribution of grain diameter and the number of side.
(a) (b) Fig 3 Distribution of grain diameter and the number of side （a）distribution of grain diameter（b）distribution of the number of side Fig 3 shows the distribution of grain diameter and the number of side in the simulation when .
In the initial time, the number of side is distributed around 4~9, and the rate of the grain whose distribution around 5~7 is up to 80% or more.
Many new grains are formed around some original deformed grains, which increases the number of side, even up to 15 sides in certain moment.

The usual methods for determining grain boundary diffusion coefficient measure the triple product P=sδDb, where s is solute segregation factor defined as a ratio between grain boundary and the lattice solute concentrations [2], δ is grain boundary width and Db is grain boundary coefficient.
Number of angles was from 50 to 200 per each sample.
As a result grain boundary diffusion coefficient will be smaller.
The analysis showed the presence of precipitates on the grain boundary.
It seems that iron does not affect significantly on kinetics properties of Cu grain boundaries with an exception of iron grain boundary diffusion.

During the past few decades, A Large number of research on dilatancy of coarse-grained soil have been carried out by many scholars abroad, and have obtained certain achievements[2-8].
And meanwhile, Isotropic consolidated-drained triaxial tests is performed for overburden material of Shuangjiangkou earth dam whose relative density is 0.8(the test number is SJK2-CID).
In-situ compaction of coarse-grained materials[M].
Characteristic of dilatation of several kinds of grained soils[J].
Engineering properties and applications of coarse grained soil[J].

Grain contains free water and bound water, both of them contribute to grain’s moisture.
The number of grain moisture content has two different senses.
On the one hand , containing the appropriate grain moisture is necessary for the grain seed to sustain life; on the other hand, moisture impact the storage and processing of grain.
Traditionally the grain moisture content of grain drying characteristics in accordance with the physical properties of water eclectic approach to food can not reveal the nature of grain moisture.
This study presented with a cylindrical capacitive sensor to measure the grain moisture basis bathtub effect on grain.