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As shown in Figure 1, the undoped sample, T1, adopts the pure 6H structure, with 3x3 alternate layers.
In the image, the position of the bright spots is a reflection of the real crystal structure and the stacking structure of the crystal can be identified from the arrangement of the spots.
The diffraction pattern on the left upper corner confirms the fact that the structure has a 5-layer periodicity.
Compared with the 6H structure, there is a missed layer at B between the layers at site C and site A.
K4a and K4c show two features of these structures and K4b has just 15R-SiC feature.

The phase structure, morphology, and chemical properties were studied.
This microstructure condition gives bovine BCP can be used as porous structure bone graft or scaffold material, due to the open pore structure.
This microporosity structure is also very important in bone grafts or scaffold structure, because it will allow capillarity in-growth during the healing process.
Materials Chemistry and Physics, 80, (2003) 409-420
Gonzalez-Calbet, Calium phosphates as substitution of bone tissues, Progress in Solid State Chemistry, 32 (2004) 1-31 [19].

The first chamber equipped with the ARPES and LEED facilities was used for studying the electronic structure of the surface.
It is known that bismuth grows on the Si(111)7´7 surface by layer-by-layer mode, but the first layer is a strained structure of Bi{012}.
Fig. 3c shows Bi{012} structure and 1×1 periodicity with a unit vector of reverse lattice on ~28% smaller than the Bi{012} film’s one.
Borisenko, in Physics, Chemistry and Application of Nanostructures, Proceedings of International Conference „Nanomeetings-2013“, World Scientific, Singapore (2013) 54
Saranin „Na-induced Changes in Electronic Structure of Si(111)-β(√3×√3)-Bi Reconstruction“ (to be published).

Nano dimension standards are the standard structures covering from nanometer to micrometer.
Figure 1 shows the metrology structure of NMM [8].
Fig. 1 The metrology structure of NMM Scanning white light interference sensor.
The structure of SWLIS is shown in Fig. 2.
Figure 3 shows the structure of AFM.

Compared with the structured data in the database, the Internet document is limited structure or no structure, Even if some structure is also focused on the form rather than the content of a document, structures of different types of documents are not consistent, in addition, the content of a document is human natural language, the computer is difficult to handle its semantics.。
We need to preprocess the text, metadata extraction can represent the feature (feature words), and file in the form of a structured storage as the intermediate representation.
Chinese text is composed of Chinese characters and punctuation, there are many language structures in the Chinese text.
So we adopted the structure mode of ASP+SQL server.
Beijing:Tsinghua University press, 2003.11 [3] Lan Shan, Lv Jun, Jiang Yiming. the expansion of petrochemical professional information retrieval search engine design and development of [J]. computers and applied chemistry, 2005,22:932-936 [4] Lu Sheng, Hou Fangmei.

Geopolymers consist of amorphous, three-dimensional structure formed by the polymerization of monomer in alkaline solution [1].
High rate of moisture lost at elevated solidification temperature tends to weaken the structure formed.
Upon the addition of water, the geopolymerization process continued suggesting fewer raw materials remain unreacted in the structure and the formation of more spherical aggregates in the structure (Fig. 4).
Most microstructure of resulted geopolymer showed highly inhomogeneous structure.
Journal of Material Chemistry, 2003. 13: p. 1161-1165

It’s generally believed that the pre-crystallizing state of the melt has a great effect on the structure and performance of products [6-8].
In recent years, the melt blending process and the melt superheating treatment have been studied, in which mainly investigated the influence of the process on the structure of liquid melt and on the dimension and distribution of the primary Si [9-12].
The melt blending process of two different ingredient melt with high- and low- temperature evidently refined the solidified structure of Al-20%Si alloy into below 36μm and make it well-distributed.
(In Chinese) [16] The inorganic-chemistry teaching and researching section of Dalian university of Technology, The inorganic chemistry[M], Beijing, High-education Press.2001：34-36．
Melt treatment structure of Al-Si alloys [D].

The whole process is controlled in order not to overheat the structures.
Optimal values mean the best structure images we obtained.
A - structure detached from the substrate (50x) B - structure detached from the substrate in the X form (50x) C - structure correctly processed (16x) Fig. 2 Microscope images by ZEISS Stemi 2000C The structure from Fig. 2A, a pattern for a micro gears, was detached from the substrate due to strong shaking.
A - Structure incorporated in SU 8 (32x) B - Early detached structure, who migrated to the right (50x) C - Correct structures extracted after SU8 removal (16x) Fig. 4 Structures before, during and after removal of photoresist SU8 - Optical microscopy The structure from Fig. 4A, a part for a micro electrostatic motor, 60 μm thiknes, is full incorporated in the SU8 fhotoresist.
Vasilache, Studies of hardness for the Electrodepozited Nickel from Watts Baths with addition of Polyvinyl Pyrrolidone (PVP), Romanian Journal of Chemistry, 2009.

., Moscow, 119991, Russia 4Department of Physics, Chemistry and Biology (IFM), F310, Campus Valla, Fysikhuset, Linköping University, Linköping, SE-581 83, Sweden aanickonoff@ispms.tsc.ru, bdmitr@ispms.tsc.ru, cigor.abrikosov@ifm.liu.se Keywords: Shear deformation, Molecular dynamics simulation, First-principles theory, Contact interaction.
The resulting structure of contacting crystallites.
The energies are given relative to their minima for the bcc structure.
So, considering the atomic structure near the interface as an alloy, it can be assumed that under certain conditions the copper atoms arranges in the bcc structure.
The structure of this layer differs from the structure of the corresponding bulk materials.

Evaluation and Classification of Black Soil Structure Degradation in Jilin by Factor Analysis & Dynamic Clustering Analysis Niu Cencena, Wang Qingb, Zhang Wenc, Wang Ked, Guo Zhene College of Construction Engineering, Jilin University, 130026, Changchun, China acencen119@126.com, bwangqingchenx@126.com, czhangwenlch@126.com, dwk8625@126.com, egzh840416@email.jlu.edu.cn Key words: factor analysis; black soil; degradation; dynamic clustering analysis Abstract: The black soil in Jilin Province, famous for providing significant amount of commodity grain to entire China, had already begun to regress to disappear on different degrees.
To study the structure degradation of black soil in Jilin Province, We used SPSS and matlab programming on data information processing, thirty indexes were chosen, factor analysis on twenty-three samples from different sites and depths in Jilin Province was carried out, and dynamic clustering analysis taking the score of main factor as the variable was performed in turn.
The former researches about black soil degradation have considered little in the aspect of basic properties and structure degradation.
Study on Mechanism of Structure Degradation and Fertility Evaluation of Black Soil in Jilin Province.Changchun: Jilin University.
Factor analysis validates the cluster structure of the dendrogram underlying the Multidimensional Affect and Pain Survey (MAPS) and challenges the a priori classification of the descriptors in the McGill Pain Questionnaire (MPQ).