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Online since: May 2012
Authors: Tangali S. Sudarshan, Hai Zheng Song, Tawhid Rana, M.V.S. Chandrashekhar
Huheey, Inorganic chemistry principles of structure and reactivity, Prentice Hall 1972
[7] DJ Larkin, PG Neudeck, JA Powell, LG Matus, Site-competition epitaxy for superior silicon carbide electronics, Applied Physics Letters, 65 (1994), 1659
Online since: September 2011
Authors: Xiao Xia He, Jian Feng Di, Wen Qin Du, Hong Jin Qi
In previous study, the contribution of fabric characters including yarn density, warp/weft density, weave structure to pore size distribution have been examined [7,8].
According to the principle of surface chemistry and hydromechanics, the weight-classification method was used to calculated the content of liquid corresponding to the size ratio.
According to the principle of surface chemistry and hydromechanics, the weight-classification method was used to calculated the content of liquid corresponding to the size ratio.
Online since: October 2011
Authors: Bo Wu, Zhao Xiang Yu, Qian Wu, Zhi Rong Zhu, Liang Chen
Catalytic Hydrogenation and Hydrocracking of PRO Residual Oil over USY-Zeolite Catalyst
Zhaoxiang Yu1, a, Bo Wu2,b, Qian Wu3,c , Liang Chen3,d, Zhirong Zhu3,e
1,2,3Department of Chemistry, Tongji University, Shanghai 200092, China
azxyu@mail.tongji.edu.cn, bwubo051012@163.com, cwuqian@tongji.edu.cn, dshouzhouchen@yahoo.cn, ezhuzhirong@tongji.edu.cn
Keywords: USY-zeolite catalyst, overall conversion, monocyclic selectivity, hydrogen partial pressure
Abstract.
They found the hydrogenation site and the hydrocracking effect were closely related with the pore path structure.
They found the hydrogenation site and the hydrocracking effect were closely related with the pore path structure.
Online since: December 2012
Authors: Jong Hoon Yoon, Ho Sung Lee, Joon Tae Yoo, Yeng Moo Yi
Multi-cell structures like airfoil, air-brake of the aircraft, missile fuselage, and so on are representative examples produced by superplastic blwo forming technique [1-4].
Chuang: Materials Chemistry and Physics Vol. 57 (1999), p. 195 [5] X.
Chuang: Materials Chemistry and Physics Vol. 57 (1999), p. 195 [5] X.
Online since: December 2012
Authors: Jun Sheng Yuan, Ru Shang, Jin Hou
Surface-modified zeolite-filled poly(piperazine-amide)/polysulfone composite membrane for potassium extraction
Jin Hou1, 2, a, Junsheng Yuan2, b and Ru Shang1, c
1College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
2Engineering Research Center of Seawater Utilization Technology, Ministry of Education, Hebei University of Technology, Tianjin 300130, China
a houjinqd@163.com, b jsyuan@hebut.edu.cn, c huaxue-2005@163.com
Keywords: Zeolite; Poly(piperazine-amide); Composite membrane; Ion-exchange property; Potassium extraction
Abstract.
Many efforts have been devoted to the organic/inorganic composite membranes using zeolite as inorganic filler, owing to its high stability, facile modification and well-defined microporous structure[2, 3].
Many efforts have been devoted to the organic/inorganic composite membranes using zeolite as inorganic filler, owing to its high stability, facile modification and well-defined microporous structure[2, 3].
Online since: October 2011
Authors: Ke Wu Peng, Peng Zhang, Jian Guo Xie, He Li Ma
Table 2 Liquidus temperature of Al2O3 -CaO-CaF2 slag
Number
Al2O3(%)
CaO(%)
CaF2(%)
Liquidus temperature (˚C)
1
68.4
31.6
10
1568
2
68.4
31.6
15
1501
3
68.4
31.6
20
1468
Fig.1 Liquidus temperature of Al2O3-CaO-CaF2 slag
Phase composition of Al2O3-CaO-CaF2 slag
The structure of the Al2O3-CaO-CaF2 slag was checked by X-ray diffraction (XRD) using a D/Max-rB diffractometer with Cu Kα radiation, and the scattering angle (2q) range was 5-100˚C
Fig.2 XRD patterns of Al2O3-CaO-CaF2 slag
Fig. 2 shows the XRD patterns of Al2O3-CaO-CaF2 slag.
[6] X.M.Chen:The Dominated the Metallurgical Process Physical Chemistry(Metallurgical Industry Press,Beijing:1994) [7]J.X.Chen: Chart Data Commonly Used Manual Steelmaking (Metallurgical Industry Press,Beijing1984)
[6] X.M.Chen:The Dominated the Metallurgical Process Physical Chemistry(Metallurgical Industry Press,Beijing:1994) [7]J.X.Chen: Chart Data Commonly Used Manual Steelmaking (Metallurgical Industry Press,Beijing1984)
Online since: July 2011
Authors: Chun Qun Liang, Shu Juan Yu
Synthesis and characterization of chitosan based ultraviolet absorber with groups of benzophenone
Shu Juan Yua, Chun Qun Liang b
College of Chemistry and life Science, Guangxi Teachers Education University, Nanning,
530001, China
asjyu2001@yahoo.com.cn, bliangchunqun@163.com
Keywords: Ultravioletlight absorber; Chitosan; benzophenone
Abstract. 2-hydroxy-4-glycidyl ether benzophenone(HGEBP) is synthesized with 2,4-dihydoxy- benzophenone(UV-0) and epichlorohydrin(ECH) as starting material, then a series of chitosan (CS) based novel ultraviolet absorbers (CS-g-UV-0) are synthesized by the reaction of chitosan with HGEBP in isopropylcarbinol in the presence of sodium hydroxide.
X-ray diffraction spectrums of graft copolymers of different mole substitution degree have no big change, which is the result of no great difference of the substitution degrees which cannot change the polymer chain structure more significantly.
X-ray diffraction spectrums of graft copolymers of different mole substitution degree have no big change, which is the result of no great difference of the substitution degrees which cannot change the polymer chain structure more significantly.
Online since: November 2012
Authors: Péter Gordon, Tamás Hurtony, Endre Harkai
In the case of these fine-grained structures numerous grains increase the surface area per unit volume.
Maraşli, Dependency of eutectic spacings and microhardness on the temperature gradient for directionally solidified Sn-Ag-Cu lead-free solder, Materials Chemistry and Physics 119 (2010) 442-448
Maraşli, Dependency of eutectic spacings and microhardness on the temperature gradient for directionally solidified Sn-Ag-Cu lead-free solder, Materials Chemistry and Physics 119 (2010) 442-448
Online since: October 2012
Authors: Gang Liu, Chun Hong Zheng, Hai Chang Ding
Synthesis and Properties Study of a New Perfluorocyclopentenes Bearing Naphthyl Unit for Manufacturing Engineering
Haichang Ding, Chunhong Zheng and Gang Liu*
Jiangxi Key Laboratory of Organic Chemistry,
Jiangxi Science and Technology Normal University, Nanchang 330013, P.
The structure of compound 1a was confirmed by 1H NMR. 1H NMR (400 MHz, CDCl3): δ 2.21 (s, 6H, -CH3), 2.35 (s, 3H, -CH3), 6.61-6.67(m, 3H, phenyl-H), 6.85(s, 1H, thienyl-H), 7.32-7.34(d, 1H, naphthyl-H), 7.47-7.56(m, 2H, naphthyl-H), 7.67-7.69(d, 1H, naphthyl-H), 7.81-7.84(m, 2H, naphthyl-H).
The structure of compound 1a was confirmed by 1H NMR. 1H NMR (400 MHz, CDCl3): δ 2.21 (s, 6H, -CH3), 2.35 (s, 3H, -CH3), 6.61-6.67(m, 3H, phenyl-H), 6.85(s, 1H, thienyl-H), 7.32-7.34(d, 1H, naphthyl-H), 7.47-7.56(m, 2H, naphthyl-H), 7.67-7.69(d, 1H, naphthyl-H), 7.81-7.84(m, 2H, naphthyl-H).