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Online since: September 2013
Authors: Shen Zhou Lu, Shan Sun, Juan Wang, Gui Jun Li
The structure of ASF microsphere carried drug was β-sheet structure characterized by X-ray diffraction and FTIR.
Structure characterization of ASF-RhB microspheres.
Compared with the structure of pure ASF microspheres, it was obvious that the structure of ASF did not changed after mixing with rhodamine.
b a Fig. 2 Structure of microspheres, a,X-RD curves; b, FT- IR spectra.
Shao, Conformation Studies of Silk Proteins with Infrared and Raman Spectroscopy, Progress in Chemistry. 18 (2006) 1514-1522.
Structure characterization of ASF-RhB microspheres.
Compared with the structure of pure ASF microspheres, it was obvious that the structure of ASF did not changed after mixing with rhodamine.
b a Fig. 2 Structure of microspheres, a,X-RD curves; b, FT- IR spectra.
Shao, Conformation Studies of Silk Proteins with Infrared and Raman Spectroscopy, Progress in Chemistry. 18 (2006) 1514-1522.
Online since: April 2010
Authors: Hong Tao Jiang, Cheng Long Yu, Xiu Feng Wang, Li Li Wang
The scaffolds prepared have an open, uniform and interconnected porous structure with a pore size of
300~500µm.
A three-dimensional interconnected porous structure is necessary to allow cell attachment, proliferation, and differentiation, and to provide pathways for biofluids.
All these chemicals were purchased from Shanghai chemistry reagent.
At a relatively low HA-ZrO2 concentration (40%), the initial polyurethane foam structure was exactly replicated with perfectly interconnected open pores.
The HA-ZrO2 concentration of the slurry determined the pore wall thickness and defects in the structure.
A three-dimensional interconnected porous structure is necessary to allow cell attachment, proliferation, and differentiation, and to provide pathways for biofluids.
All these chemicals were purchased from Shanghai chemistry reagent.
At a relatively low HA-ZrO2 concentration (40%), the initial polyurethane foam structure was exactly replicated with perfectly interconnected open pores.
The HA-ZrO2 concentration of the slurry determined the pore wall thickness and defects in the structure.
Online since: December 2012
Authors: Norsuzailina Mohamed Sutan, Hamdan Sinin
Efflorescence Phenomenon on Concrete Structures
NORSUZAILINA Mohamed Sutan1, a and SININ Hamdan2
(1,2) Department of Civil Engineering,Faculty of Engineering, Universiti
Malaysia Sarawak,94300 Kota Samarahan,Sarawak, Malaysia
amsnorsuzailina@feng.unimas.my
Keywords: Efflorescence, concrete, calcium carbonate, calcium hydroxide, aesthetics
Abstract.
The reason for this is that the extent of efflorescence in any given structure depends on number of factors that were mentioned before that cannot always be established or quantified.
Kresse, "Coloured concrete and its enemy: efflorescence," Chemistry and Industry, pp. 93-95, 1989
The reason for this is that the extent of efflorescence in any given structure depends on number of factors that were mentioned before that cannot always be established or quantified.
Kresse, "Coloured concrete and its enemy: efflorescence," Chemistry and Industry, pp. 93-95, 1989
Online since: November 2014
Authors: Yi Zhou, Wen Yi Li, Qing Wu Tian, Da Jun Zhang
Compared with that of MCPN-HCl , the rough surface can be observed for the MCPN-HCl (II), implying loose structure of PANI appeared on the surface of MWCNTs.
Chemical Structure The typical FT-IR spectra of MCPN-HCl and MCPN-HCl (II) were displayed in Fig. 2.
It is found that although the MCPN-HCl (II) nanocomposites kept similar core–shell structure, but the interaction between PANI and MWCNTs became weak, which was not benefited to the charge transfer charge transport in hybrid material systems.
Reference [1] Li L, Qin ZY, Liang X, Fan QQ, Lu YQ, Wu WH, Zhu MF, Facile Fabrication of uniform Core–shell Structured carbon nanotube–polyaniline nanocomposites, The Journal of Physical Chemistry C, 2009, 113(14): 5502–5507
[2] Zhou Y, Qin ZY, Li L, Zhang Y, Wei YL, Wang LF, Zhu MF, Polyaniline/multi–walled carbon nanotube composites with core–shell structures as supercapacitor electrode materials, Electrochimica Acta, 2010, 55: 3904–3908
Chemical Structure The typical FT-IR spectra of MCPN-HCl and MCPN-HCl (II) were displayed in Fig. 2.
It is found that although the MCPN-HCl (II) nanocomposites kept similar core–shell structure, but the interaction between PANI and MWCNTs became weak, which was not benefited to the charge transfer charge transport in hybrid material systems.
Reference [1] Li L, Qin ZY, Liang X, Fan QQ, Lu YQ, Wu WH, Zhu MF, Facile Fabrication of uniform Core–shell Structured carbon nanotube–polyaniline nanocomposites, The Journal of Physical Chemistry C, 2009, 113(14): 5502–5507
[2] Zhou Y, Qin ZY, Li L, Zhang Y, Wei YL, Wang LF, Zhu MF, Polyaniline/multi–walled carbon nanotube composites with core–shell structures as supercapacitor electrode materials, Electrochimica Acta, 2010, 55: 3904–3908
Online since: February 2012
Authors: Dong Liang Peng, You Dao Lin, Xin Wen, Guang Hui Yue, Lai Sen Wang
In this work, 1D single crystalline SnS nanowire arrays are prepared and investigated to research the properties of structure and optics.
There are various of methods which have been reported to prepare the 1D crystalline tin sulfides nanostructures, such as cationic surfactant cetyltrimethylammonium bromide (CTAB) [4], chemistry vapor deposition (CVD) [5], stoichiometric composition technique [6] and Bridgman-Stockbarger technique [7], and these articles have investigated the properties of structure, crystalline and optics of the 1D SnS nanostructures.
X-ray diffraction (XRD, Panalytical X’ Pert PRO with Cu Kα radiation, λ=0.15405 nm) was used to investigate the structure of the samples.
The change of the crystal structure indicates that the process of sulfuration is accomplished.
And the SnS nanowires have an orthorhombic structure.
There are various of methods which have been reported to prepare the 1D crystalline tin sulfides nanostructures, such as cationic surfactant cetyltrimethylammonium bromide (CTAB) [4], chemistry vapor deposition (CVD) [5], stoichiometric composition technique [6] and Bridgman-Stockbarger technique [7], and these articles have investigated the properties of structure, crystalline and optics of the 1D SnS nanostructures.
X-ray diffraction (XRD, Panalytical X’ Pert PRO with Cu Kα radiation, λ=0.15405 nm) was used to investigate the structure of the samples.
The change of the crystal structure indicates that the process of sulfuration is accomplished.
And the SnS nanowires have an orthorhombic structure.
Online since: February 2011
Authors: Hong Fang Liu, Wei Cai, Zao Qi Hu
Effect of Ni on Characteristics and Structure of Aluminum Brass
Wei Cai1,a, Zaoqi Hu2,b and Hongfang Li1,c
1Materials and Chemistry Engineering Faculty, Jiangxi University of Science and Technology, Ganzhou, Jiangxi, China, 341000
2FULLWAY TECHNOLOGY CO., LTD, Qidu Town Develop Zone, Wujiang City, Jiangsu, China, 215234
a516712328@163.com, b496996722@qq.com, c403727269@qq,com
Keywords: Ni; Cu-22.7Zn-3.0Al Alloy; Microstructure; Mechanical Property
Abstract.
This research is about mechanical features and structure of CuZnAl brass with different Ni content.
Studying structure as-cast, recrystallization and grain size, and analyzing the structure and characteristics of strip annealed after cold-rolled, in order to improve the characteristics and extend the using field of the alloy.
Experiment result and analysis Figure 1 is structure of ingot as-cast with different Ni content in the aluminum brass.
Figure 2 is structure of rough cold-rolled sheet after annealing at 620°C.
This research is about mechanical features and structure of CuZnAl brass with different Ni content.
Studying structure as-cast, recrystallization and grain size, and analyzing the structure and characteristics of strip annealed after cold-rolled, in order to improve the characteristics and extend the using field of the alloy.
Experiment result and analysis Figure 1 is structure of ingot as-cast with different Ni content in the aluminum brass.
Figure 2 is structure of rough cold-rolled sheet after annealing at 620°C.
Online since: August 2009
Authors: Yu Liang Zhang, Xiao Feng Li
The
as-synthesized doped ZnO nanocrystals retain the wurtzite structure with a morphology in the form
of flower-like shape.
In contrast to these methods, colloidal chemistry routes are more and more focused by offering several advantages in this research area [5].
The particles have a flower-shaped porous structure, and their sizes are similar regardless of their compositions.
In addition, small particles and some aggregated structures were also observed in the TEM images.
From the HRTEM image of 3.0 at.% Mn-doped ZnO nanocrystals have a rather perfect crystal structure.
In contrast to these methods, colloidal chemistry routes are more and more focused by offering several advantages in this research area [5].
The particles have a flower-shaped porous structure, and their sizes are similar regardless of their compositions.
In addition, small particles and some aggregated structures were also observed in the TEM images.
From the HRTEM image of 3.0 at.% Mn-doped ZnO nanocrystals have a rather perfect crystal structure.
Online since: June 2012
Authors: Wei Wang, Xi Liu
The effects of contents of CaCO3 and its particle size on structure and property of hybrid membrane were investigated.
In the organic-inorganic hybrid membranes, inorganic particles were bring into the organic network , that can improve the network structure, the thermal stability, permeability and separation selective, strengthen the mechanical performance of the membrane, adjust the balance of close water-scanty water.
The effects of content of CaCO3 and its particle size on structure and property of hybrid membrane were investigated.
Process in Chemistry, 16 (2004) 654-659
In the organic-inorganic hybrid membranes, inorganic particles were bring into the organic network , that can improve the network structure, the thermal stability, permeability and separation selective, strengthen the mechanical performance of the membrane, adjust the balance of close water-scanty water.
The effects of content of CaCO3 and its particle size on structure and property of hybrid membrane were investigated.
Process in Chemistry, 16 (2004) 654-659
Online since: February 2014
Authors: Fang Shao, Bing Quan Huo, Feng Ling Yin
The structure of the system are introduced in detail, i.e. the four component modules, the seven component units establishing the hardware platform, and the three component parts establishing the electric control system design.
The overall structure of the measurement and control system is shown in Fig. 1.
Fig. 1 The overall structure of the measurement and control system (1) The man-machine unit The man-machine unit is composed of operation panel, machine tool control panel and hand wheel.
Journal of Industrial and Engineering Chemistry, 2013,19(2):394-406.
The overall structure of the measurement and control system is shown in Fig. 1.
Fig. 1 The overall structure of the measurement and control system (1) The man-machine unit The man-machine unit is composed of operation panel, machine tool control panel and hand wheel.
Journal of Industrial and Engineering Chemistry, 2013,19(2):394-406.
Online since: August 2018
Authors: Agus Subagio, Achmad Subhan, Alfin Darari, Istajib Sulton Hakim, Priyono Priyono, Pardoyo Pardoyo
The XRD study reveals the formation of CNT/GT/ZnO structure.
The surface structure of electrodes were characterized by X-ray diffraction spectroscopy (XRD, Philip Analytical X-Ray B.V) with Cu Kα radiation (λ=1.5418 Å) at 40 kV and scanning electron microscope (JEOL-6510LA).
Results and Discussion Structure of CNT/GT/ZnO was evaluated by using XRD.
The network structures of CNT can increase surface area for double layer capacitance.
Jiang, Green synthesis of graphene nanosheets/ZnO composites and electrochemical properties, Journal of Solid State Chemistry 184 (2011) 1421
The surface structure of electrodes were characterized by X-ray diffraction spectroscopy (XRD, Philip Analytical X-Ray B.V) with Cu Kα radiation (λ=1.5418 Å) at 40 kV and scanning electron microscope (JEOL-6510LA).
Results and Discussion Structure of CNT/GT/ZnO was evaluated by using XRD.
The network structures of CNT can increase surface area for double layer capacitance.
Jiang, Green synthesis of graphene nanosheets/ZnO composites and electrochemical properties, Journal of Solid State Chemistry 184 (2011) 1421