Search results

Discarded wood was smashed into 0.5 mm grain size powder, and dried to 8% moisture content.
All of this indicates that aromatic ring number of graphene, graphite crystallite, the stacking height of larger plane and the crystallite size increase, and the interlamination distance of microcrystal decrease, which lead the rank of microcrystal to become more regulation and order, but it is difficult to graphitize.

The Pulsed Current characteristics are shown in the Fig. 1, Fig.1 Peak current (Ip),Base current (Ib),Peak time (tp )and Base time(tb) The base current is used to maintain a stable arc while the peak current is used to melt the parent material and frequency gives number of peak current and base current in a second.
Both theoretical and experimental studies have been carried out to access the impact of the pulsed current technique on heat input, contour,grain structure, heat affected zone (HAZ), and segregation pattern.

High performance concrete is usually mixed from silica sand (maximum grain size is 2 mm), high quality Portland cement, silica fume, silica powder, fly ash and water.
Acknowledgment The authors gratefully acknowledge the support provided by the Ministry of Interior of the Czech Republic under the project number VG20102014003.

It has the characteristics of high moisture content (25%-40%), high viscosity, fine grain, and poor liquidity and is not transported and used easily.
First of all from pump to the entrance of boiler each pipeline section is numbered one by one(see Fig.1).

The average grain size for the three materials are 5-8µm, 15-20µm and 8-10µm, respectively.
SEM observation of the crater surface has shown that the basic fracture mode was transgranular, consistent with observations by Hooper and Brookes [6], where fractography studies showed that fracture occurs through the primary particles and across the interparticular bridges in a number of aggregates of cubic boron nitride and of diamond.

The sintered materials were polished successively with water sandpaper numbers 220, 400, 600, 1000, 1200 and 1500, using a polishing machine (Aerotec).
Figure 6c shows that it is not possible to distinguish neither grains nor necks because it was formed a glassy phase, which was confirmed by XRD.

The structure of the superlattice films is represented by [(PZO)1.5h /(PTO)1h]3 , where 3 is the number of (PZO)1.5h/(PTO)1h layers.
These have proved that the composite film has the intact crystalline morphology, even the grain boundary can not be detected in the range of SEM image.

In this paper, the directional solidification of technical preparation of the solar grade polysilicon is the use of the segregation effect of impurity elements in solid and liquid phases to achieve the purpose of purification, at the same time by one-way heat flow control neatly arranged along the growth direction of columnar grain structure.
Vacuum high-temperature volatile makes P a large number of exclude in Si evaporation losses.

Computer vision technology is widely applicated in intelligent detection, such as Category and figure of grain identification, crops recognition in the field, grading of fruit and vegetable.
Acknowledgment This study is supported by the Doctoral Startup Project of Liaoning Province Science and Technology Plan and Liaoning Province Department of Education General Scientific and Technological Research Projects, the project numbers are 20121098 and L2012193 respectively, I would like to express my sincere gratitude here.

This method has a number of potential advantages [12]: (i) a high homogeneity of reactants can be achieved, (ii) the required composition for the ceramic formation can be adjusted by solution processes, and (iii) the precursor can undergo low-temperature decomposition, enabling ceramic formation under milder conditions than those used in conventional techniques.
Furthermore, the diffraction peaks of carbides become narrower, indicating the growth of the grain size.