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Online since: December 2003
Authors: Mikko Hupa, Heimo O. Ylänen, Erik Vedel, Hanna Arstila, Leena Hupa
Journal Citation (to be inserted by the publisher )
Copyright by Trans Tech Publications
Measuring the Devitrification of Bioactive Glasses
Hanna Arstila
1, Erik Vedel1 , Leena Hupa
1, Heimo Ylänen
1
and Mikko Hupa
1
1
Process Chemistry Center, Åbo Akademi University, Piispankatu 8, FIN 20500, Turku, Finland
hanna.arstila@abo.fi
Keywords: bioactive glass, devitrification, crystallization, DTA, HTM
Abstract.
Such glasses are prone to easily crystallize, devitrify, during the manufacturing process or any heat-treatment needed for achieving a desired form and structure of the product, e.g. an implant.
The devitrification makes it unsuitable for implant structures, which are manufactured by thermal treatments of the glass [3].
Such glasses are prone to easily crystallize, devitrify, during the manufacturing process or any heat-treatment needed for achieving a desired form and structure of the product, e.g. an implant.
The devitrification makes it unsuitable for implant structures, which are manufactured by thermal treatments of the glass [3].
Online since: April 2011
Authors: Wei Jun Liu, Shou Zhi Pu, Shi Qiang Cui, Hong Liang Liu
Efficient Synthesis and Properties of a Photochromic Diarylethene Bearing an Isoxazole Moiety
Hongliang Liu, Shouzhi Pu*, Shiqiang Cui, Weijun Liu
Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang 330013, P.R.China
pushouzhi@tsinghua.org.cn
Keywords: Diarylethene; Isoxazole; Photochromism; Fluorescence; Synthesis.
However, the structure of isoxazole is similar to that of oxazole.
The structure of 1o was characterized by 1H NMR spectroscopy. 1H NMR (400 MHz, CDCl3): δ 1.98 (s, 3H, -CH3), 2.03 (s, 3H, -CH3), 2.22 (s, 3H, -CH3), 7.01-7.06 (m, 1H, benzene–H), 7.12 (s, 1H, thiophene-H), 7.14 (s, 1H, benzene–H), 7.33 (s, 1H, benzene–H).
However, the structure of isoxazole is similar to that of oxazole.
The structure of 1o was characterized by 1H NMR spectroscopy. 1H NMR (400 MHz, CDCl3): δ 1.98 (s, 3H, -CH3), 2.03 (s, 3H, -CH3), 2.22 (s, 3H, -CH3), 7.01-7.06 (m, 1H, benzene–H), 7.12 (s, 1H, thiophene-H), 7.14 (s, 1H, benzene–H), 7.33 (s, 1H, benzene–H).
Online since: July 2011
Authors: Jiang Hong Yao, Guo Zhi Jia, Yun Feng Wang
The preparation of CdS sensitized ZnO semiconductor nano-microstructure thin film has been studied very extensively in recent years since these structures offer the prospect of proving ZnO absorption to the visible light range.
There is slightly different between the band gap of ZnO/CdS nanorods film and one of the pure CdS film, which can be ascribed to the different structure of films.
Singh: Materials Chemistry and Physics Vol. 93 368 (2005), p. 368 [9] Q.X.
There is slightly different between the band gap of ZnO/CdS nanorods film and one of the pure CdS film, which can be ascribed to the different structure of films.
Singh: Materials Chemistry and Physics Vol. 93 368 (2005), p. 368 [9] Q.X.
Online since: November 2012
Authors: Wei Wei Li, De Kuan Zhang, Jun Li
Effective use of feedforward requires a system structure that has two degrees of freedom.
It is first assumed that the system has the structure shown in Fig.1.
Morari, Internal model control-4: PID controller design, Industrial Engineering Chemistry Process Design and Development 25(1986) 252-265
It is first assumed that the system has the structure shown in Fig.1.
Morari, Internal model control-4: PID controller design, Industrial Engineering Chemistry Process Design and Development 25(1986) 252-265
Online since: November 2013
Authors: Zheng Hua Wang, Bo Zhi Ren, Pu Wang
Effluent from these dyestuff industries contains different types of dyes, which because of high molecular weight and complex structures, shows very low biodegradability [3].
Fig. 1 Chemical structure of Sunchromine Brilliant Red B dye (C.I.
Sharma, Coordination Chemistry Reviews, Vol. 257 (2013), p.495-510
Fig. 1 Chemical structure of Sunchromine Brilliant Red B dye (C.I.
Sharma, Coordination Chemistry Reviews, Vol. 257 (2013), p.495-510
Online since: September 2013
Authors: Qi Hua Yang, Xiong Lan, Ke Zhang
The amplitude detect system uses an improved temperature compensation balance matching pairs of diode detector structure to eliminate small signal measurements effect of metal thermal noise and improve the SNR .The specific circuit as shown in Figure 3.
Although the same of 4 channel structure, but there are still some errors, this is because the parameter detector diode caused by inconsistency.
Chinese Journal of Analytical Chemistry.
Although the same of 4 channel structure, but there are still some errors, this is because the parameter detector diode caused by inconsistency.
Chinese Journal of Analytical Chemistry.
Online since: December 2012
Authors: Zhong Fei Ma, Zhi Lin Ge, Zhen Zhang
The self-priming sprayer, which was composed of a nozzle, throat pipe, shorter diffusion tube, a suction chamber and other components,refered to a spraying device which can improve the efficiency of atomization and dust suppression by self-priming air when the pressure water sprayed through a nozzle.Its internal structure was shown as figure 1.
The structure of conventional nozzle was designed as that of swirl nozzle.
Analytical Chemistry.2011,83(3):643-647 [4] Wang Zhentao, Luo Tiqian, Chen Huilong et al.
The structure of conventional nozzle was designed as that of swirl nozzle.
Analytical Chemistry.2011,83(3):643-647 [4] Wang Zhentao, Luo Tiqian, Chen Huilong et al.
Online since: June 2015
Authors: Francesco La Via, Ruggero Anzalone, Massimo Camarda, Stefania Privitera, Nicolò Piluso
Solid State Devices and Materials, Tokyo, pp. 227 (1987).
] or “chloride-based chemistries” [[] D.
The PC can be measured as a function of position, therefore obtaining information on the correlation between the crystal structure and the electrical properties.
Although the two defective regions are characterized by peaks at the same energy (2.9eV) the different intensity may correspond to different defect structure giving also to different PC response.
The PC can be measured as a function of position, therefore obtaining information on the correlation between the crystal structure and the electrical properties.
Although the two defective regions are characterized by peaks at the same energy (2.9eV) the different intensity may correspond to different defect structure giving also to different PC response.
Online since: February 2014
Authors: Miras Dolayev, Sergey Panchenko, Rinat Bakytbekov, Roman Ivlyev
Therefore, it is appropriate to use a three-dimension structure, shown schematically in Figure 3,for their excitation .
In this paper, a model structure was implemented, based on three layers each of which is a diode-resistive matrix (Figure 4).
Excitation of Suleimenov – Mun’s waves at polymer composite surface // 7th IUPAC International Conference on Novel materials and their Synthesis (NMS-VII) & 21st International Symposium on Fine Chemistry and Functional Polymers (FCFP-XXI), Shanghai, 16-21 October, 2011 [6] Suleimenov I., Mun G., Ivlev R., Panchenko S., Kaldybekov D.
In this paper, a model structure was implemented, based on three layers each of which is a diode-resistive matrix (Figure 4).
Excitation of Suleimenov – Mun’s waves at polymer composite surface // 7th IUPAC International Conference on Novel materials and their Synthesis (NMS-VII) & 21st International Symposium on Fine Chemistry and Functional Polymers (FCFP-XXI), Shanghai, 16-21 October, 2011 [6] Suleimenov I., Mun G., Ivlev R., Panchenko S., Kaldybekov D.
Online since: December 2013
Authors: Yerdos Ongarbaev, Yerbol Tileuberdi, Berik Tuleutaev, Zulkhair Mansurov, Frank Behrendt
At present oil producing sector takes a leading position in the structure of national economy of Kazakhstan.
Oxygenates (1100-1300, 1706 cm-1) and aromatic structures (747, 1032, 1604 cm-1) are most clearly seen in the organic part of the asphaltenes and asfaltogenic acids.
Encyclopedia of chemistry (Ullmann’s). vol. 4, 273-294.
Oxygenates (1100-1300, 1706 cm-1) and aromatic structures (747, 1032, 1604 cm-1) are most clearly seen in the organic part of the asphaltenes and asfaltogenic acids.
Encyclopedia of chemistry (Ullmann’s). vol. 4, 273-294.