Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: December 2012
Authors: Yi Xi Cai, Sheng Li Wei, Xiao Hua Li, Jun Wang, Pan Wang
Basing on ray tube NTP reactor of the DBD with simple structure, low cost and large gaps, it can reduce the gas flow resistance when dealing with diesel exhaust.
2.
NTP reactor 3.1 NTP reactor design The DBD-NTP reactor structure is shown in Fig.1, the low-voltage electrode has outer diameter of 100 mm, internal diameter of 104 mm and quartz glass as a barrier medium with thickness of 3 mm in the central stainless steel tube, moreover, the copper is a high-voltage electrode in the outer wide wall of 100 mm.
Fig.1 Structure of DBD-NTP reactor 3.2 Performance characteristics of the NTP reactor In order to do not affect the performance of the original engine in the bench test, the compressing air flow is controlled to 2.5 m3/h through the NTP reactor, and the discharge frequency of NTP reactor is fixed at 10 kHz.
Plasma Chemistry and Plasma Processing, Vol.23(3),(2003),p.10-46
NTP reactor 3.1 NTP reactor design The DBD-NTP reactor structure is shown in Fig.1, the low-voltage electrode has outer diameter of 100 mm, internal diameter of 104 mm and quartz glass as a barrier medium with thickness of 3 mm in the central stainless steel tube, moreover, the copper is a high-voltage electrode in the outer wide wall of 100 mm.
Fig.1 Structure of DBD-NTP reactor 3.2 Performance characteristics of the NTP reactor In order to do not affect the performance of the original engine in the bench test, the compressing air flow is controlled to 2.5 m3/h through the NTP reactor, and the discharge frequency of NTP reactor is fixed at 10 kHz.
Plasma Chemistry and Plasma Processing, Vol.23(3),(2003),p.10-46
Online since: October 2013
Authors: Xiang Ling, Guang Ming Zhang, Guo Li
Therefore, rather than giving accurate results, it can only be used to assess the approximate charging permeability[5].
3.System Structure
By combining several intelligent modeling and intelligent control method, an intelligent system for controlling moisture of sintering mixture centre on permeability is developed, as is shown in Figure 1.
The modular structure of this system has been shown within the dotted line frame.
Sintering Lumps RBF Model of Permeability Expert Control Rules Control rulesrules DCS Sintering Machine Optimization Algorithm Sintering parameters parameters HMI User Fig.1 System Structure 3.1 The RBF Neural Network Model of Permeability We defined the synthetic permeability of ISP sintering process as Pe, which indicate the permeability of the whole sintering process
Computers and Applied Chemistry.2008,25(7):897-901 [4] Xu Chen-hua,Wu Min.Intelligent integrated optimization control of quality and quantity for lead-zinc sintering process[J].
The modular structure of this system has been shown within the dotted line frame.
Sintering Lumps RBF Model of Permeability Expert Control Rules Control rulesrules DCS Sintering Machine Optimization Algorithm Sintering parameters parameters HMI User Fig.1 System Structure 3.1 The RBF Neural Network Model of Permeability We defined the synthetic permeability of ISP sintering process as Pe, which indicate the permeability of the whole sintering process
Computers and Applied Chemistry.2008,25(7):897-901 [4] Xu Chen-hua,Wu Min.Intelligent integrated optimization control of quality and quantity for lead-zinc sintering process[J].
Online since: August 2013
Authors: Li Fang Zhang, Yin Ling Wang
It is rather difficult to treat dye effluents because of their synthetic origins and their mainly aromatic structures, which are biologically non-degradable [6-7].
The chemical structure of dye was given in Fig. 1.
Fig. 1 Chemical structure of C.
Solution pH influences both cell surface dye binding sites and dye chemistry in water.
The chemical structure of dye was given in Fig. 1.
Fig. 1 Chemical structure of C.
Solution pH influences both cell surface dye binding sites and dye chemistry in water.
Online since: May 2013
Authors: Cheng Bo Cao, Mao Sheng Wan, Ming Yang Wang, Hai Yang Sun, Wen Qing Ma
Preparation of stilbene-eighteen alkyl quaternary ammonium salts as fluorescent brightening materials and surfactants
Maosheng Wan1, a, Chengbo Cao1, b, *, Haiyang sun2, c, Mingyang Wang1, d, and Wenqing Ma1, e
1School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, China
2School of textiles, Tianjin Polytechnic University, Tianjin, 300387, China
ashmw11258@163.com, bcbcao@sdu.edu.cn, csunhaiyang0404@126.com, dsduwmy@163.com, exmgwan@163.com
Keywords: Synthesis; Stilbene; Quaternary ammonium salts; Whiteness; surfactants.
Conclusion Stilbene-quaternary ammonium salts had been prepared and the structures of obtained compounds 4a-c were characterized by UV-visible and fluorescence emission spectra.
Másson, Antibacterial activity of N-quaternary chitosan derivatives: Synthesis, characterization and structure activity relationship (SAR) investigations.
Zhuo, Quantitative structure-activity relationship (QSAR) study of toxicity of quaternary ammonium compounds on Chlorella pyrenoidosa and Scenedesmus quadricauda.
Conclusion Stilbene-quaternary ammonium salts had been prepared and the structures of obtained compounds 4a-c were characterized by UV-visible and fluorescence emission spectra.
Másson, Antibacterial activity of N-quaternary chitosan derivatives: Synthesis, characterization and structure activity relationship (SAR) investigations.
Zhuo, Quantitative structure-activity relationship (QSAR) study of toxicity of quaternary ammonium compounds on Chlorella pyrenoidosa and Scenedesmus quadricauda.
Online since: February 2008
Authors: Li Gao, Lin Jiang Wang, Yi Ting Du, Guo Wei Zhang
Introduction
The layered structure of kaolinite consists of silica tetrahedral [SiO4] units stacked together with
alumina octahedral [AlO6] units.
The d(001) spacing peak of the kaolinite-glucose intercalation compound is strong and sharp, and its intensity (cps value) is 5.5 times that of the unintercalation kaolinite, which suggests that the structure order degree of the kaolinite was improved by the intercalation.
In the structure region of kaolinite, OH-bending frequency 915 cm-1 shifted to 912.89 cm-1 and its intensitiy decreased because of dodecylamine intercalation.
Theng: The Chemistry of Clay-Organic Reactions.
The d(001) spacing peak of the kaolinite-glucose intercalation compound is strong and sharp, and its intensity (cps value) is 5.5 times that of the unintercalation kaolinite, which suggests that the structure order degree of the kaolinite was improved by the intercalation.
In the structure region of kaolinite, OH-bending frequency 915 cm-1 shifted to 912.89 cm-1 and its intensitiy decreased because of dodecylamine intercalation.
Theng: The Chemistry of Clay-Organic Reactions.
Online since: December 2012
Authors: Hidetaka Hayashi, Akira Kishimoto, Takahiro Nakagawa, Takashi Teranishi
SUPERPLASTICALLY FOAMING METHOD FOR RELIABLE POROUS CERAMICS
Akira Kishimoto1, a, Takahiro Nakagawa1,b, Takashi Teranishi1,c and Hidetaka Hayashi1,d
1 Division of Chemistry and Biotechnology, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Okayama 700-8530, Japan
akishim-a@cc.okayama-u.ac.jp, bgen422717@s.okayama-u.ac.jp, cterani-t@cc.okayama-u.ac.jp, dhhayashi@cc.okayama-u.ac.jp
Keywords: foam, closed pore, superplasticity, zirconia ceramics
Abstract Porous ceramics incorporate pores to improve several properties including thermal insulation, maintaining inherent ceramic properties such as corrosion resistance and large mechanical strength.
In general, the elastic modulus E usually obeys the following empirical formula: E = E0exp(-bp) (2) where p is the porosity and b is a constant depending on the pore arrangement and framework structure [6].
However, a rigid macroscopic structure having these properties has not yet been reported.
A structure dominated by closed pores would maintain stiffness even with a large number of pores.
In general, the elastic modulus E usually obeys the following empirical formula: E = E0exp(-bp) (2) where p is the porosity and b is a constant depending on the pore arrangement and framework structure [6].
However, a rigid macroscopic structure having these properties has not yet been reported.
A structure dominated by closed pores would maintain stiffness even with a large number of pores.
Online since: September 2013
Authors: Chao Xiao, Zhong Jian Zhang, Qing Qing Gao, Cun Qi Liu, Fu Liang Shang, Hai Tao Yang
It is very difficult to fabricate tungsten trioxide targets because of its diversiform structure and the instability in chemicals. [12] This paper deals with the preparation of high density Zn/ WO3 targets.
1 Experimental
The tungsten trioxide powder and zinc dioxide powder with the purity of 99.99% were used as raw materials.
The crystal structure was examined using D8-Advance X-ray diffraction (XRD) and the fracture surface morphology was studied by SU-70 scanning electron microscopy (SEM).
And the small crystals disappeared, which indicated that the ZnO can effectively enter into the WO3 lattice structure to form solid solution during sintering (Fig.5b).
[7] Cotton F A, Wilkinson G, Advances inorganic chemistry [M].New York; Wiley, 1988:829
The crystal structure was examined using D8-Advance X-ray diffraction (XRD) and the fracture surface morphology was studied by SU-70 scanning electron microscopy (SEM).
And the small crystals disappeared, which indicated that the ZnO can effectively enter into the WO3 lattice structure to form solid solution during sintering (Fig.5b).
[7] Cotton F A, Wilkinson G, Advances inorganic chemistry [M].New York; Wiley, 1988:829
Online since: January 2009
Authors: Xiao Xiang Wang, Yong Jiang
In the literature, titanium surface
coated with nano-structured HAP was supposed to provide better cell adhesion than the surface
coated with coarse-structured HAP[10].
The crystal structure of the coatings was examined using an X-ray diffractometer (XRD, Philips XD-98) with a Cu anode.
Christian, Analytical Chemistry (Wiley, New York, 1986) [15] S.K.
The crystal structure of the coatings was examined using an X-ray diffractometer (XRD, Philips XD-98) with a Cu anode.
Christian, Analytical Chemistry (Wiley, New York, 1986) [15] S.K.
Online since: July 2020
Authors: On-Uma Nimittrakoolchai, Sukon Kalasung, Pitak Eiamchai, Saksorn Limwichean, Noppadon Nuntawong, Nongluck Houngkamhang, Wipawanee Leung
SERS substrate contained Ag nanorod structure was used to measure cypermethrin at a concentration of 10-3, 10-4, 10-5, and 10-6 M by varying the exposure time at 10s 20s and 30s, the results showed in fig. 3a 3b and 3c, respectively.
Conclusion The handheld Raman spectrometer has potential to be used couple with SERS substrate which made from silver nanorod structure for pesticide analyzer.
The nanorod structure can enhance the Raman signals and long exposure exhibit high signal intensity.
S., & Al-Rushaid R.: Food Chemistry, vol. 59(2) (1997), p. 283-290 [3] Armenta S., Quintás G., Garrigues S., & de la Guardia M.: Talanta, vol. 67(3) (2005), p. 634-639 [4] Debbab M., El-Hajjaji S., Aly A.
Conclusion The handheld Raman spectrometer has potential to be used couple with SERS substrate which made from silver nanorod structure for pesticide analyzer.
The nanorod structure can enhance the Raman signals and long exposure exhibit high signal intensity.
S., & Al-Rushaid R.: Food Chemistry, vol. 59(2) (1997), p. 283-290 [3] Armenta S., Quintás G., Garrigues S., & de la Guardia M.: Talanta, vol. 67(3) (2005), p. 634-639 [4] Debbab M., El-Hajjaji S., Aly A.
Online since: August 2007
Authors: Xiao Hu Chen, Xiao Min Chen, Huang Zhao, Ji Huai Wu
However, the control of elongated-grain duplex structures is difficult and
is an active area of continuing research in powder-processing science.
Due to its anisotropic structure, Al2TiO5 might have a strong tendency to grow anisotropically if the growth process occurs under a suitable environment.
Therefore, the rod-like Al2TiO5 could be achieved based on its anisotropic cell structure and the remnant α-Al2O3 grew slowly to form equiaxed fine grains as the matrix.
Pradhan: Materials Chemistry and Physics Vol. 77 (2002), p. 153 [6] X.
Due to its anisotropic structure, Al2TiO5 might have a strong tendency to grow anisotropically if the growth process occurs under a suitable environment.
Therefore, the rod-like Al2TiO5 could be achieved based on its anisotropic cell structure and the remnant α-Al2O3 grew slowly to form equiaxed fine grains as the matrix.
Pradhan: Materials Chemistry and Physics Vol. 77 (2002), p. 153 [6] X.