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Online since: May 2012
Authors: Xiao Li Gou, Xuan Jun Wang
Designed process flow of the combined processing technology, and the naturally purification and artificial wetland dealing with the structure of pond, and to his processing dimethyl hydrazine the effect to imitate waste water has been in progress research.
It is collecting the waste water treatment technology in an organic whole of physics, chemistry and biochenistry reaction, and his unique and complicated purification mechanism makes it give play to the important effect in keeping in the mouth the processing of organic waste water of heavy metal industrial wastewater and difficult degradation [6].
Fig.1 The process flow of the naturally purification and artificial wetland 2.3 Structure and effect of the process pond The naturally purification and artificial wetland processing pond is major part of the processing dimethyl hydrazine waste water.
The pond’s structure is shown like Fig. 2.
Artificial wetland adopt two grades of marsh series connection systems, the structure sketch map is shown like figure 3.
Online since: January 2012
Authors: Zhen Zhou, Yong Qin, Jing Hou, Li Jie Wang
Introduction Casein is an important component of dairy products, it mainly comprises 4 phosphorylated monomers (αS1-casein, αS2-casein, β-casein, κ-casein) which form micelle-like structure in aggregate style.
Because the structure of casein is extremely complex, the casein has many unique physicochemical properties and biological functions.
Dynamic light scattering as an important means of studying polymer molecular structure can directly determine the parameters of macromolecules in solution such as diffusion coefficient, particle size and distribution, and has the advantages of no interference with the sample, informative, simple and fast, it also has played an important role in the characterization of protein structure [2], analysis of aggregate process [3] and interaction [4,5].
Chinese Journal of Analytical Chemistry.
Journal ofAnalytical Chemistry. 2007,35(6):809 [7] C.
Online since: January 2016
Authors: Anthony Centeno, A.T. Hamid Toloue, M.T. Ahmadi
In recent years, graphene on Au has been fabricated and shows stable absorption of biomolecule with carbon-based ring structures [15].
The structure of the proposed SPR biosensor is depicted in Fig. 2, where the graphene layer covers a gold thin film.
[6] Homola, J., Present and future of surface plasmon resonance biosensors, Analytical and Bioanalytical Chemistry. 377 (3) (2003) 528 - 539
R., Geim, A.K., Fine structure constant defines visual transparency of graphene, Science. 320 (5881) (2008) 1308 - 1308
Recent advances in the development of graphene-based surface plasmon resonance (SPR) interfaces, Analytical and Bioanalytical Chemistry. 405(5) (2013) 1435 - 1443
Online since: September 2010
Authors: Z. Weltsch, A. Lovas
The melts solidify in the form of single phase solid solutions, with fcc crystal structure (inherited from the Ag host).
Consequently, the reason of varying slope Θ(T) is the consequence of the change in bulk electronic structure, caused by the host metal replacement.
B Massalski: Structure of solid solutions, Physical Metallurgy, Ch. 4, (1983)
Wenzel: Industrial & Engineering Chemistry Research 28, 988 (1936)
Allen: Surface Tension in Liquid Metals, in Liquid Metals (Chemistry and Physics) ed.
Online since: July 2017
Authors: Yasuhiko Hayashi, Paneer Selvam Karthik, Zaw Lin, Venkata Abhinav Korada, Masaki Hada, Takeshi Nishikawa
Introduction Self-assembly is observed in supramolecular chemistry ever since its recognition [1].
Molecular self-assembly has complex factors and infinitesimal molecular interactions governing the congregation for structures.
In fullerene chemistry, self-assembly is being extensively studied since last decade [2, 3].
In this experiment mwcnts were integrated into fullerene nps to form hybrid networked structures.
Johnson: Crystal Structure and Growth Mechanism of Unusually Long Fullerene (C60) Nanowires, J.
Online since: July 2011
Authors: Lin Yan Jia, Yan Wen Tian, Zhong Bao Shao
A new method named high temperature ball milling method was invented [7], which is based on the mechano-chemistry method.
XRD pattern of phosphors prepared at different temperature a:500℃ b: 600℃ c:650℃ d:700℃ e:750℃ From the XRD pattern shown in Fig. 1, the structure of YBO3 belongs to hexagonal system, with space group P63.
So the doped Eu3+ had little influence on the host structure.
The structure of samples with different doping concentration of Eu3+ ions were the same, the position and intensity of peaks are not obviously changed.
The structure of YBO3 has been distorted when Y3+ ions are replaced by Eu3+ ions, because the ionic radius of Eu3+ ions (0.107nm) is larger than Y3+ ions (0.102nm).
Online since: December 2013
Authors: Guo Dong Li, Shi Zhao Kang, Xiang Qing Li, Jin Mu, Zhen Hong, Li Xia Qin
Photocatalytic Degradation Activity of TiO2 Nanotubes for Cr(VI) LI Xiang Qing1,a, HONG Zhen1,b, KANG Shi Zhao1,c, QIN Li Xia1,d, LI Guo Dong2,e, MU Jin1,f* 1 School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 100 Haiquan Road, Shanghai 201418, China 2 State Key Laboratory of Inorganic Synthesis Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, China axqli@sit.edu.cn, b920813002@qq.com, ckangsz@sit.edu.cn, dlxqin@sit.edu.cn, elgd@jlu.edu.cn, fmujin@sit.edu.cn Keywords: TiO2 nanotubes; photocatalytic; degradation; Cr(VI) solution Abstract.
Compared to TiO2 nanoparticles, TiO2 nanotubes possess large aspect ratio, tubular structure and specific area, which could effectively adsorb contaminant and restrict reverse reaction of photo-generation electron and hole.
However, being calcined beyond 350°C, the lamellar structure collapses, and the nanotubes transform to nanorods [10].
The main diffraction peaks for the samples calcined below 350 °C are located at 2θ = 24.6° and 48.7°, which correspond to the (110) and (020) crystal planes of titanate with lamellar structure.
Combined with the results of XRD and our previous report [10], it may be attributed to the suitable crystal structure and the uniform tubular morphology of the product when the calcination temperature is 350 °C.
Online since: June 2012
Authors: Xiao Qiao Wan, Fang Zhao, Ze Hua Yu, Ying Zhao
Dyeing Properties of Cyanoethylated Wood with Disperse Dyes Xiaoqiao Wan1, Fang Zhao2, Zehua Yu3, and Ying Zhao4* The Institute of Applied Chemistry, Central South University of Forestry & Technology, Changsha, 410004, P.R.China 894552574@qq.com1, huhu614@163.com2, yuzeh1988@sina.com3, zhaoying42@sohu.com4 *Corresponding authors:Ying Zhao Keywords: Cyanoethylated wood, Dyeing, Disperse dye, Color shade Abstract.
Disperse Red 54,177, and disperse Blue 79,148, and disperse Yellow 114,163 (chemical structures are listed in Fig.1) were supplied by Zhejiang Runtu Co.Ltd in China.
The chemical structures of six disperse dyes: Disperse R54 Disperse B79 Disperse Y163 Disperse R177 Disperse B148 Disperse Y114 Fig.1 The chemical structures of six kinds of disperse dyes Results and discussion Dyeing of cyanoethylated fir powder with 6 disperse dyes.
The micporous collapse and the porous structure is damaged.
[5] Q.Y.Yu: Progress in Chemistry,Vol. 8(1996), p.34(In Chinese)
Online since: April 2014
Authors: Hong Wang, Ming Tian Li, Yue Lu, Di Liu
Preparation and Thermal Stability of Pyrrole and m-toluidine Copolymer / Montmorillonite Composites Hong Wang1, a, Mingtian Li1,b, Yue Lu1,c and Di Liu2,d 1 Key Laboratory of Material Corrosion & Protection of Sichuan Province, Department of Materials & Chemical Engineering, Sichuan University of Science & Engineering, Zigong, 643000, China 2College of Chemistry Chemistry, Jilin University, Changchun 130012, China; ajluhong999@163.com, blimingtian01@aliyun.com, cluyuepolymer@126.com, dliudi_student@yahoo.cn Keywords: Pyrrole and m-toluidine Copolymer, Montmorillonite, Thermal property, Abstract.
The effect of MMT contents on the morphology and structure of the composites were characterized by XRD, SEM and FTIR.
Moreover, to study the influences of the concentration of MMT on the morphology, structure, and properties of the products, P(PY/MT)-MMT was prepared under the same conditions without MMT powder.
In Fig. 1a, the broad diffraction in the 2θ were obtained in the range of 18.0° to 28.0° for P(PY/MT) which suggests the structure of pure P(PY/MT) to be amorphous.
These weight losses suggest that the thermal stability of the P(PY/MT)-MMT nanocomposites is enhanced because of the barrier effect of the clay layer structure and from the interactions between P(PY/MT) and MMT.
Online since: September 2013
Authors: Qian Cheng Zhao, Zhi Bo Li, Yan Xia Qi, Hai Jiao Zuo, Tian Wang
Many marine invertebrates are plentiful sources of sphingolipids, in particular, cerebrosides, which differ in structures and biological properties from analogous glycosphingolipids of the terrestrial origin [2].
Kawatake et al. [7] extracted six cerebroside components from the Luidia maculata, and identified their structures.
The number of N was 1-2 and the number of O was above 8 in the structure of cerebrosides.
The structure of cerebrosides was determined containing O-H, C-H, C=O, N-H, -CH2-, C-O and long aliphatic chain.
Stonika: Russian Chemical Bulletin Vol. 55, No.5, p. 928-933 [3] Xiaojun Liu, Wutong Wu: Pharmaceutical Biotechnology, In Chinese, Vol. 23, No.3 (1995), p. 19-23 [4] Zengqi Liu, Tao Jing.: Tianjin Medicine, In Chinese, Vol.15, No.4, (2003), p. 64-67 [5] Yisu Sang, Zhida Min: Chinese Journal of Biochemical Pharmaceutics, In Chinese, Vol.21, No.4 (2000), 211-213 [6] Yingtao Lv, Congmin Kang, Changhu Xue: Food Science, In Chinese, Vol.30, No.11 (2009), p. 26-28 [7] Yamada K, Sasaki K, Harada R, et a1.: Chemical&Pharmaceutical Bulletin Vol.50 (2002), p. 1467-1470 [8] Jin WZ, Kenneth LR, Elizabeth A: J Org Chem Vol.59 (1994), p. 144-147 [9] Fatttorusso E, Mangoni A: Progress in the chemistry of natural products, edtied by Springer Wien, New York, No.72 (1997), p. 215-301 [10] Natori T, Morita M, Akimoto K, et al.: Tetrahedron Vol.50, No.9 (1994), p. 2771-2784 [11] Wang LP, Wang T, Fehr W: Journal of Agriculture and Food Chemistry, Vol.54 (2006), p. 7812-7816 [12] Zhao, G.