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Online since: November 2019
Authors: Bassam Abdallah, M. Kakhia, N. Alkafri
The X- Ray Diffraction (XRD) pattern exhibited the wurtzite structure of ZnS with (002) preferred orientation.
ZnS exhibits two different crystal structures zinc blend [27] and wurtzite structures [17].
Both structures have the same direct energy band gap.
The doped films have nanotubes structure ( 4, 6 and 12 wt. % PbS powder concentration), while the ZnS film without doping (0 wt. % PbS) is thin and has dense structure.
Lei, The Journal of Physical Chemistry C, 119 (2015) 1575-1582
Online since: March 2014
Authors: Sivakumar Muthusamy, Siva Chidambaram, Karthikeyan Baskaran, Solomon J. Samuel, Baraneedaran Pari, Annie R. Sujatha
The morphology of the resulting products can be of any structure like core-shell structure, core-multishell structure, doped nanostructures, or attached complex type nanostructures, which are shown in the left side of the image. 2.
Thus the individual entity of the MFNs is greatly important as well as the structure of the final structure.
These kinds of nanostructures had found their potential applications on the basis of the surface chemistry of the shell layer and the composition of the yolk material [33].
These multifuctional structures are the integration of multiscale structures and some specific chemical compositions.
Zink, Mesostructured multifunctional nanoparticles for imaging and drug delivery, Journal of Materials Chemistry 19.35 (2009) 6251-6257
Online since: October 2014
Authors: Wei Xu, Zu Peng Wang, Rong Shao
Fluorescence emission spectra showed that slight differences were among the structures of the mutant phytases.
Enzymatic properties of different mutants were compared, and the effects of mutations on enzyme structure were analysed.
In current research, the residue D191 was far from the active site according to the structure of neutral phytase.
Structure, 9(2001), p. 851 [12] X.
Agricultural and Food Chemistry, 60(2012), p. 7532 [34] K.
Online since: February 2026
Authors: Muhammad Khan, Fatimah Alotibi
· Process–structure–property mapping for print fidelity, interfacial adhesion, and foldability
Right: Mixed-blend route with co-extruded PZT and insulating filaments forming a continuous monolithic structure. 3.3.
Taken together, these results highlight the importance of tuning process–structure–property relationships.
Journal of Materials Chemistry C, 9, 5804–5821
Wu, “Flexural fatigue behavior of TPU-based layered structures under cyclic bending,” Polymer Testing, vol. 96, p. 107091, 2021.
Online since: June 2010
Authors: Luo Lie
In particular, this paper focuses on structural decomposition methods, which are essentially meant to look for near-acyclicity properties of the graphs or hypergraphs that encode the structure of the constraints interactions.
In general, constraint scopes comprise an arbitrary number of variables, and thus this structure may be naturally encoded via hypergraphs.
This continues until a suitable solution has been found or a certain number of generations have passed, depending on the needs of the programmer. 3 Genetic Algorithms Genetic algorithms find application in bioinformatics, phylogenetics, computational science, engineering, economics, chemistry, manufacturing, mathematics, physics and other fields.A standard representation of the solution is as an array of bits.
Arrays of other types and structures can be used in essentially the same way.
Online since: November 2005
Authors: Michael Korchynsky
These include: refined dendritic structure, small globular inclusions, retention of MA elements in solution.
These two elements are not interchangeable (see Fig. 11), however, and for optimum results, specific steel chemistry and processing parameters are required.
Kimura et al.: International Symposium on Steel for Fabricated Structures, ASM International, Cincinnati, OH, 1999, p. 165. 14.
Korchynsky: Proceedings of Symposium on Steel for Fabricated Structures, ASM International, Cincinnati, OH, 1999, p. 139. 25.
Online since: November 2010
Authors: Xiao Lin Xie, Jun Yuan, Yuan Wu, Qi Xin Zheng
Synthesis and Characterization of Nano Hydroxylapatite By Reaction Precipitation in Impinging Streams Jun Yuan1,2,a, Yuan Wu2,b, Qixin Zheng1,c , Xiaolin Xie3,d 1Department of Life Science, Huazhong University of Science and Technology, Wuhan, China 2College of Chemical & Pharmaceutical Engineering, Wuhan Institute of Technology, Wuhan, China 3Department of Chemistry, Huazhong University of Science and Technology, Wuhan, China ayuanjun@mail.wit.edu.cn, bwuyuan@public.wh.hb.cn, czheng-qx@21cn.com, dxlxie@mail.hust.edu.cn Keywords: Impinging streams; Precipitation; Hydroxylapatite; Nano-whiskers Abstract.
Multiply repeated experiments illustrates that, because of the excellent performance of the reactor, the preparation process can be easily controlled to yield nano rod/whisker hydroxylapatite with very narrow size distribution. 1 Introdution Hydroxylapatite (Ca10(PO4)6(OH)2), HAP) has been widely used as biomaterials, because it has the mineral components and crystal structures similar to those of the bones and teeth and also well biocompatibility with human body[1,2].
The structure of the SCISR used in the present study is shown in Fig. 1, which contains two elements: the opposed streams impinging against one another and the circulation flow.
Information-Calculating System on Crystal Structure Data of Minerals (MINCRYST), Kristallographiya, v.35, n.3,.610-616 (in Russian).
Online since: July 2011
Authors: Hong Zhang, Zhong Hao Rao, Yan Lai Zhang, Shuang Feng Wang, Li Jun Li, Ming Long Zhang
Characterization and Thermal Properties of the Microencapsulated PCM Slurry Yanlai Zhang1, 2, a, Zhonghao Rao2, b, *, Shuangfeng Wang2, c, *, Hong Zhang1, d, Lijun Li 1, e and Minglong Zhang1, f 1College of Mechanical & Electrical Engineering, Central South University of Forestry and Technology, Changsha 410004, China 2Key Laboratory of Enhanced Heat transfer and Energy Conservation of the Ministry of Education, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 51064, China aylzhang2008@sohu.com, br.zhonghao@mail.scut.edu.cn, cfwang@scut.edu.cn, dhngfq@sina.com, ejunlili1122@163.com, fznlkjc@163.com Keywords: Microencapsulated PCM slurry, heat special, density, viscosity, non-Newtonian fluid.
Although the microencapsulated PCM has fluidity, the particle structure of the microencapsulated PCM is stable and unbroken while the PCM expands or contracts under phase change process.
At the temperature range from 280.5K to 285.5K, a phase transition process is observed that is caused by the paraffin crystalline structure change [10].
[3] Wei Li, Guolin Song, Guoyi Tang, Xiaodong Chu, Sude Ma and Caifeng Liu, Morphology, structure and thermal stability of microencapsulated phase change material with copolymer shell, Energy 36 (2) (2011) 785-791
Online since: September 2013
Authors: Shao Yu Zhang, Xi Chen, Qun Fang Gui, Xu Fei Zhu, Xiao Min Zhong, Hua Peng Xiao
Self-ordering Process of Hexagonal Cells in Porous Anodic TiO2 Nanotubes Zhang Shaoyu1,2,a, Gui Qunfang1,b, Zhong Xiaomin1,c, Chen Xi1,d, Xiao Huapeng1,e, Zhu Xufei1,f 1 Key Laboratory of Soft Chemistry and Functional Materials of Education Ministry, Nanjing University of Science and Technology, Nanjing 210094, P.
Because formation machanism of PATNT is similar to that of porous anodic alumina (PAA), some models of PAA are used to explain the growth of PATNT. [8-10] For example, the flow model and oxygen bubble mould effect (OBME) have been cited by several groups.[11,12] In general, hexagonal cells of PATNT can be obtained in fluoride-containing electrolyte.[13] TiO2 nanotubes packed in approximately hexagonal symmetry have significantly higher charge- collection efficiencies.[14] In order to obtain the self-ordering hexagonal structures, Ruff et al. proposed that the key parameter to obtain hexagonal structure was a controlled substrate temperature at a sufficiently high applied potential (60–100 V).[15] However, the self-ordering mechanism of hexagonal cells has rarely been reported.
Otherwise, if there were no fluoride rich layer at the cell boundaries, a film with porous structures would be formed.[17] However, PATNT prepared in aqueous H2SO4 and other fluoride-free solutions were reported.[10] These findings put the fluoride effect or fluoride rich layer into question.[10] In summary, a comprehensive discussion of self-ordering mechanism for hexagonal cells needs to be studied.
Online since: May 2014
Authors: Rainer Gadow, Patrick Weichand
The aim of this project is, to develop a manufacturing technology for complex formed, thin walled composite structures in industrial scale and quality.
At 650 °C no significant changes in the amorphous structure can be detected.
This is referable to the reinforcement structure.
F.: “Silane coupling agents in basalt-reinforced polyester composites”, International Journal of Adhesion and Adhesives 1, Nr.1, (1980) 50–54 [11] Deák, T.; Czigány, T.: “Chemical Composition and Mechanical Properties of Basalt and Glass Fibers: A Comparison”, Textile research journal 79, Nr.7, (2009) 645–651 [12] Gutnikov, S.; Malakho, A.; Lazoryak, B.; Loginov, V.: “Influence of Alumina on Properties of Continuous Basalt Fibers”, Russian Journal of Inorganic Chemistry, Vol. 54, No.2, (2009) 191-196 [13] Eckert, P.: “Studies on Tribology and Porosity Properties of Fiber Reinforced PDC”, IFKB 2013