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Online since: April 2014
Authors: Peter Bernasovský
These are 1) The presence of a specific liquid (molten)metal in contact with the affected component or structure, and 2) An applied or residual tensile stress acting on the affected component or structure while in contact with the liquid metal.
Chemistry & Industry Conference, Riyadh, Dec. 11-15, 2004.
Chemistry & Industry Conference, Riyadh, Dec. 11-15, 2004.
Online since: May 2012
Authors: Qing Chao Jia, Yan Jun Chen, Hong Min Hou
Such as Photoorientation of azobenzene-functionalized liquid crystalline hyperbranced polymer[9], optical limiting property[10], photochromism property, photoinduced birefringence[11], polarization hologram and surface relief gratings[12 ].Hence, the synthesis of azo compound with novel structure is one of the most important subjects.
The structures of azo aromatic diacyl chlorides were confirmed by IR, 1HNMR and elemental analysis.
Found: C, 45.03; H, 1.65; N, 7.59 Acknowledgements We are grateful for the financial support of Anyang technology Bureau and the National Finance Foundation of China (2010.10) of Supporting the Development of Local Colleges and Universities (Applied Chemistry of Key Subjects of Henan).
The structures of azo aromatic diacyl chlorides were confirmed by IR, 1HNMR and elemental analysis.
Found: C, 45.03; H, 1.65; N, 7.59 Acknowledgements We are grateful for the financial support of Anyang technology Bureau and the National Finance Foundation of China (2010.10) of Supporting the Development of Local Colleges and Universities (Applied Chemistry of Key Subjects of Henan).
Online since: January 2012
Authors: Hua Zhe Yang, Yue Ping Xu, Xiao Ming Yu, Yang Ji, Ning Zhang, Yang Hong
China
2 Institute of Materials Physics and Chemistry, School of Sciences, Northeastern University, Shenyang, Liaoing, 110004, P R China
3 Stomatology Department of the General Hospital of Shenyang Military Area Command, Shenyang, Liaoning, 110840, P.R.
As an alternative solution, conventional water-in-oil (W/O) emulsion can be adopted to prepare a core-shell structure, i.e.
When the HCl is 5 mL(water phase: oil phase=1:6), the sample is in irregular structure, i.e. with the increase of water proportion, the morphology experience a irregular-regular-irregular change.
As an alternative solution, conventional water-in-oil (W/O) emulsion can be adopted to prepare a core-shell structure, i.e.
When the HCl is 5 mL(water phase: oil phase=1:6), the sample is in irregular structure, i.e. with the increase of water proportion, the morphology experience a irregular-regular-irregular change.
Online since: November 2015
Authors: Sinar Arzuria Adnan, Sahrim Hj Ahmad, Firuz Zainuddin, Hazizan Md. Akil
This result is in accordance with literature that reported with increase in the MDI usage in the PU foams, there is increase in the foam’s crosslinking density which leads to a better compressive strength and more closely packed structure.
The decreasing of compressive strength show in addition of 2 wt.% MDI due to PU foams did not form the uniform cell structure.
Sultan: Materials Chemistry and Physics 129 (2011), p. 301-307 [14] B.D.S.Orozco, M.V.Alonso, M.
The decreasing of compressive strength show in addition of 2 wt.% MDI due to PU foams did not form the uniform cell structure.
Sultan: Materials Chemistry and Physics 129 (2011), p. 301-307 [14] B.D.S.Orozco, M.V.Alonso, M.
Online since: November 2007
Authors: Shao Wei Huang, Xu Dong Wang, Weng Juan Zhang, Chang Lu, Zhi Hong Zhu, Xin Tang Huang, Yan Zeng
Novel Composite of Nano-sized SiO2/Chitosan Induce the Growth of HAp
Crystal
Shaowei Huang2, Xudong Wang2 , Wengjuan Zhang
2, Chang Lu2 ,
Zhihong Zhu1,a,Xintang Huang
1, Yan Zeng
2
1 College of Physical Science and Technology, Central China Normal University, Wuhan 430079,
PR China
2 College of Chemistry , Central China Normal University, Wuhan 430079, PR China
zhzhu@phy.ccnu.edu.cn
Keywords: Nano-sized SiO2; Chitosan; HAp; Crystal growth
Abstract.
With the increase of the immersion time, the exiguous crystal grain congregated together and formed the porous structure.
Chitosan film Nano-sized SiO2 PO4 3− hydroxyapatite Nucleation site Formation of single HAp layer on the modified chitosan film Formation of the porous structure of HAp Ca 2+ Fig. 1.
With the increase of the immersion time, the exiguous crystal grain congregated together and formed the porous structure.
Chitosan film Nano-sized SiO2 PO4 3− hydroxyapatite Nucleation site Formation of single HAp layer on the modified chitosan film Formation of the porous structure of HAp Ca 2+ Fig. 1.
Online since: May 2007
Authors: Shu Sheng Jia, S. Zhang
MgO is a B1 structure, a = 0.4212 nm [12],
κS=6.19 10
-12 Pa
-1 is determined by κ=1/B with B
=161.6 GPa being the bulk modulus [15], VS = 5.60
cm3g-atom, ρS=3.610
3 kgm-3 [16], VL = 6.36 cm3g-atom
and γL= 0.585 Jm-2, as a first-order approximation for
MgO and FeO have the same structure, we assume they
have the same volume expansion and liquid surface
tension. κL=9310
-12 Pa
-1 [9], f = 6.45 Jm-2.
Weast: CRC Handbook of Chemistry and Physics, 69th edition, (CRC Press, Inc., Boca Raton, [1]Florida, 1988-1989), p.
Weast: CRC Handbook of Chemistry and Physics, 69th edition, (CRC Press, Inc., Boca Raton, [1]Florida, 1988-1989), p.
Online since: December 2013
Authors: Rui Xin Guo, Guang Fu Xu, Hui Min Jing
The adsorption isotherm studies of orange peel on pesticide furadan
Xu Guangfu1, Jing Huimin2, Guo Ruixin2*
1 Department of Analytical Chemistry, China Pharmaceutical University, Nanjing 210009, China
2 Department of Environmental Science, China Pharmaceutical University, Nanjing 210009, China
*ruixinguocpu@163.com
Keywords: Adsorption; Orange peel; Furadan; Adsorption isotherm
Abstract.
The chemical structure of this pesticide was displayed in Figure 1.
Fig.1.The chemical structure of furadan used in this study Results and Discussion With the data in our earlier period experiment, the Langmuir and Freundlich models were used to analyze the adsorption isotherms of furadan.
The chemical structure of this pesticide was displayed in Figure 1.
Fig.1.The chemical structure of furadan used in this study Results and Discussion With the data in our earlier period experiment, the Langmuir and Freundlich models were used to analyze the adsorption isotherms of furadan.
Online since: December 2007
Authors: Hanna J. Krztoń
Introduction
There has been a significant increase in the applications of the Rietveld method [1,2] to
various X-ray Powder Diffraction (XRPD) techniques in last twenty years (e.g. a determination of
crystal structures [3-5], crystal's imperfections investigation [6]) .
This is the only sample in which chemistry of this component is dominating by Al (given as Al2O3 - 38 wt.%) and by Ca (given as CaO - 23 wt.%).
Cheetham, "Ab initio structure solution with powder diffraction data" in "The Rietveld Method", ed.
This is the only sample in which chemistry of this component is dominating by Al (given as Al2O3 - 38 wt.%) and by Ca (given as CaO - 23 wt.%).
Cheetham, "Ab initio structure solution with powder diffraction data" in "The Rietveld Method", ed.
Online since: May 1998
Zannela (Institute of Chemistry, Inorganic Technologies and Advanced
Materials, Padua, Italy), Prof.
Today, especially attractive fields are direct breakthrough into the world of atoms and their arrangements via high resolution methods and nanostructure designs; models applications and computer simulation at a large scale to predict the structure and properties of materials; and use of principles of self-organization of living organisms for synthesis and tailoring of materials structure at the molecular level (biomimicric materials).
Today, especially attractive fields are direct breakthrough into the world of atoms and their arrangements via high resolution methods and nanostructure designs; models applications and computer simulation at a large scale to predict the structure and properties of materials; and use of principles of self-organization of living organisms for synthesis and tailoring of materials structure at the molecular level (biomimicric materials).