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Online since: September 2013
Authors: Santosh Mane, Pandurang Pingale, Lalasaheb Deshmukh, Vikram Karande
It has been seen from the micrographs (Figure 3a-e) that the film structure is improved upto x=0.1.
For higher values of x ( 0.2 ≤ x ≤ 0.5) grain structure becomes more and more diffused with reduced crystallite size and clear grain boundaries tending towards amorphous globe like structure, bit bigger in size.
Energy band gaps of these structures are of the direct type and the band gap decreased continuously with increase in Co2+ content in the CdS film.
Maldar, Vice-Chancellor, Solapur University, Solapur for helpful discussions on the chemistry part of these investigations.
Su, Hydrothermal synthesis and magnetic properties of nanoplate-assembled hierarchical structured Co1-xS microrods, Mater.
Online since: July 2015
Authors: Ronald Weissenbacher, Jozef Keckes, Arno Köpf, Juraj Todt, Reinhard Pitonak
This suggests that the lamellar structures were highly organized with very sharp interfaces.
XRD measurements (Fig. 6) revealed that the crystal structure of the individual layers had changed.
By increase of the Ti content the whole HR-CVD AlTiN coating took a cubic crystal structure, almost no hexagonal crystals could be detected.
Moreover is this phenomenon always limited to planar structures in PVD multilayers, while HR-CVD AlTiN extends it into the third dimension.
Sproul, Structure and mechanical properties of polycrystalline CrN/TiN superlattices, J.
Online since: April 2019
Authors: Vladimir Shustov, Yurii Kabirov, Rushana Eremina, Nikolay M. Lyadov, Tatiana Gavrilova, Ildar Gilmutdinov, Ivan Yatsyk, Tatiana Chupakhina, Julia Deeva, Ilshat Fazlizhanov, Alexey Shestakov
They exhibit unexpected new physical properties, which can depend on the synthesis method and the internal structure of the composite.
As it shows, the pure LSMO has the granular structure with the polyhedron-shape closed to a spherical.
The high aspect ratio of GeO2 leads to the formation of composites materials also with granular structure with lower size and irregular shape of granules in comparison with pure LSMO (inset in Fig. 1a).
The second kink at T2 ~243 K can be attributed to the presence of the SrMnO3 impurity phase with Neel temperature TN=235 K [16,17] or to the structural phase transition how it was in the case of La0.7Sr0.3Mn0.1Ti0.3Ga0.6O3, where the first-order reconstructive phase transition from the trigonal R-3c structure to the orthorhombic Pnma structure was observed at T=215K [18].
The pure LSMO has the granular structure with the polyhedron-shape closed to a spherical, while the high aspect ratio of GeO2 leads to the formation of composites materials also with granular structure with lower size and irregular shape of granules in comparison with pure LSMO.
Online since: September 2014
Authors: Guo Sun Zeng, Wei Wang, Ting Ting Huang, Chun Ling Ding
A Trustworthy Sort Method for Shopping Customer Reviews Based on Correlation Degree with Product Features Chunling Ding1, a, Guosun Zeng2, b, Wei Wang2, c and Tingting Huang2, d 1Department of Chemistry, Tongji University, Shanghai 200092, China 2Full Department of Computer Science and Technology, Tongji University, Shanghai 200092, China adingcl@tongji.edu.cn, bgszeng@tongji.edu.cn, cwilltongji@gmail.com, dhuangtingting@163.com Keywords: Product releasing, customer reviews, correlation degree, trustworthy sort.
For a web page, it is semi-structured information, which is hierarchically organized and stored according to many themes.
The structure of a web page has the following two parts: (1) the relationship between different tags forms a DOM tree, and each branch of DOM tree reflects page semantic structure, but it cannot express the absolute accurate semantic structure. (2) Space and visual cues in web pages tell user implicit semantic structure.
Good phone, new unopened, inactive genuine, the seller is active in solving a few problems, a good seller. 3.2 Modeling for User Reviews User reviews have some common characteristics: (1) contents are open, free, and arbitrary. (2) words are serious colloquial and they have few complete SVO structures. (3) short length and messages contain relatively little information. (4) there are some nonsense reviews, and there are not related with product.
So before extracting text features, we first need to transform the review text into structured or semi-structured text.
Online since: October 2014
Authors: Yu Gui Zhang, Hong Yang, Zhi Hao Ma, Yun Chang Fan
It can qualitatively and quantitatively analyze the organic composition and structure of organic compounds in coal.
This research devotes to reveal the structure of the extracts on the molecular level, which might provide theoretical values and guidance for the effective use of the coal resource.
Destruction of tectonic stress on coal directly changes the structure of coal, and indirectly reduces the content of low molecular compounds in coal.
The first stage (1~5h) is mainly the dissolution of small molecules which dissociate from the macromolecular network structure of coal.
A large number of small molecules can be quickly dissolving in the early extract due to the coal body structure is loose.
Online since: July 2014
Authors: Tao Tao, Xing Yan Chen
Owing to have special properties in  catalysis, separation, optic, electron, Magnetics and intelligent materials, mesoporous molecular sieve as new knowledge growth in numerous subjects has been a research focus in chemistry, material, physic, biology and information field at home and abroad[2].
At present, the commodity of molecular sieve is an aluminosilicate microporous crystal, which is a framework structure composed of by the silicon oxygen tetrahedral lattice, in which exist the metal cations (such as Na+, K+, Ca2+, Li+) that can balance extra negative charges in the crystal.
Molecular sieve, according to its crystal structure, is divided into: A type, X type, Y type etc… 3A, 4A, 5A molecular sieve, are categorized to the Linda A type molecular sieve.
Howeverthey can be distinguished on the basis of the silicon aluminum ratio in crystal structure of.
The structure and properties of Mesoporous molecular sieves are between amorphous inorganic porous materials (such as amorphous silica-aluminate) and crystal structure of porous inorganic materials (zeolite), [3].
Online since: December 2013
Authors: Lin Wang, Xin Hua Li, Fei Lu, Di Wang, Ning Qin, Ji Yang Yu
Due to the good solubility property of inulin, the VGI of inulin is just over 60% when the concentration is below 30%, and inulin does not form solid net structure and the now solution still has application; when the concentration is 35%, the VGI of inulin reaches 90.4%, close to 100%, within this concentration, with the increase of inulin quality score, the inulin solution approaches saturation, and with the fall of solution temperature, inulin is more easily separated out and twins each other in solution to form the intermediate structure between solid state and liquid state, and the gelation tend is obvious; when the concentration of inulin is 40%, the appearance of inulin solution looks like jelly solid, which does not flow when converting the containers, and now the inulin gel is formed.
At this time, the spatial structure of inulin polysaccharide is tight and proper.
The increase of storage time can make the gel net structure tighter and increase the water holding capacity of gel to some degrees.
When the temperature approaches room temperature, due to the thermal motion, its rate drops, and the polysaccharide molecular order gets disorderly to form net structure, which increases the viscosity; when the solution temperature is 4℃, the net structure is tighter, and both the raw materials can reach above 140 mPa·S, and now the viscosity has reached the product specifications of medium viscose gel.
Food Chemistry, vol. 83 (2003) no. 3, p. 387-393
Online since: June 2020
Authors: Aija Trimdale, Agris Bērziņš
Initial structures were taken from CSD.
In all structures mentioned carboxylic acid dimer is the main hydrogen bond motif [1-3].
In structures deposited in CSD, all COOH dimers correspond to C1, Z1 conformation.
It can be noted that the most stable conformation in solution that has the most negative Gibbs free energy is C2, although C1 was observed in solid state structures.
Since C1 is the conformation found in the crystal structure, only this conformation was used to carry out the calculations.
Online since: February 2012
Authors: Zhi Shen Wu, Feng Li, Sheng Hu Cao
With the increased use of CFRP composites in building structures, understanding their performance at elevated and high temperatures is an important safety issue.
There is a skin-core heterogeneity of the graphene structure for this carbon fiber, which consists of a high strength surface region and a lower strength core.
Therefore, when the carbon fiber is in the condition of oxidation, based on the rule of mixtures, assumed that there is the same ultimate strain in the whole skin-core graphene structure, the tensile strength is lower than that no oxidation.
Michael Davies: Composite Structures 63 (2004), p.33-43 [6] S.E.
Nakajima: Pure and Applied Chemistry 58 (1986), p. 455-468 [19] B.F.Jones and R.G.
Online since: April 2005
Authors: Pavel Šandera, Mojmír Šob, V. Vitek, Miroslav Černý, Jaroslav Pokluda
Chemistry, Masaryk University, CZ-611 37 Brno, Czech Republic 2 Inst.
As the symmetry of the structure does not change during this deformation, simpler ab initio approaches, e.g.
Conclusion A significant advance in the evaluation of the theoretical strength of materials has been achieved by application of ab initio electronic structure methods.
Pokluda: In: Materials Structure & Micromechanics of Fracture (MSMF-3), Ed.
The directions of loading 〈DL〉 and of slip 〈DS〉 are given for tensile and shear strengths, respectively; the shear plane is {111} for fcc structures and {112} for bcc structures.