Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: August 2014
Authors: Wen Yan Zhao, Ning Wang, Wei Li Huang
Adsorption of streptomycin on soil: Effects of pH and the presence of cations
Ning Wang1, Wenyan Zhao*1,a and Weili Huang1
1 College of Chemistry and Chemical Engineering, Inner Mongolia University Hohhot , China
*a Corresponding Author: zhaowenyan@imu.edu.cn
Keywords: Adsorption; Streptomycin; Cations; pH
Abstract.
Streptomycin structure Material and method Streptomycin sulfate (STR for short), was purchased from Bgm Schlosser Str.
Streptomycin structure Material and method Streptomycin sulfate (STR for short), was purchased from Bgm Schlosser Str.
Online since: August 2019
Authors: Wancheng Sittikijyothin, Rattanaphol Mongkholrattanasit, Keonakhone Khounvilay, Khanaphit Khumduang
Physicochemical Characterization of Seed Gum from Cassia Fistula
Wancheng Sittikijyothin1,a*, Khanaphit Khumduang1,b,
Keonakhone Khounvilay2,c and Rattanaphol Mongkholrattanasit3,d*
1Department of Chemical Engineering, Faculty of Engineering, Burapha University, 169 Tambon Saensook, Amphur Muang, Chonburi 20131, Thailand
2Department of Chemical Engineering, Faculty of Engineering, National University of Laos, 3166, Lao-Thai friendship Rd, Vientiane PDR
3Department of Textile Chemistry Technology, Faculty of Industrial Textiles and Fashion Design, Rajamangala University of Technology Phra Nakhon, Bangkok, 10300 Thailand
awancheng@buu.ac.th, bmaicheeng21@gmail.com, ckhounvilay7@gmail.com, drattanaphol.m@rmutp.ac.th
Keywords: Cassia fistula, Carboxymethylation, Galactomannan, Intrinsic viscosity
Abstract.
Since, the strong inter- and intra-molecular hydrogen bonds as van der Waals forces present for crude gum in aqueous solution [15], thus the structure does not completely dissolving in water, which related to the lower viscosity.
Since, the strong inter- and intra-molecular hydrogen bonds as van der Waals forces present for crude gum in aqueous solution [15], thus the structure does not completely dissolving in water, which related to the lower viscosity.
Online since: August 2008
Authors: Alain Reza Yavari, Walter José Botta Filho, Claudio Shyinti Kiminami, C.A.D. Rodrigues, G. Tremiliosi-Filho, J.M.D.A. Rollo
Botta
4,f
.
1
São Carlos Institute of Chemistry, University of São Paulo - USP
Av.Trabalhador São-Carlense 400, São Carlos 13566-590, SP, Brazil
2
São Carlos School of Engineering, University of São Paulo - USP
Av.Trabalhador São-Carlense 400, São Carlos 13566-590, SP, Brazil
3
Euronano, Institut National Polytechnique de Grenoble (LTPCM-CNRS), BP 75,
38402 St-Martin-d'Hères Campus, France
4
Department of Materials Engineering, Federal University of São Carlos,
São Carlos, SP, Brazil
a
cesaraug@sc.usp.br, b
germano@iqsc.usp.br, ctfase@sc.usp.br, deuronano@ltpcm.inpg.fr,
e
kiminami@power.ufscar.br, fwjbotta@power.ufscar.br
Keywords: Mechanical alloying, nanostructured powders, Al alloys, hot rolling.
The structure and microstructure of the milled powders and consolidated materials were examined by conventional X-ray diffraction (XRD) using Cu-Kα radiation and optical, scanning and transmission electron microscopy (OM, SEM and TEM, respectively).
The structure and microstructure of the milled powders and consolidated materials were examined by conventional X-ray diffraction (XRD) using Cu-Kα radiation and optical, scanning and transmission electron microscopy (OM, SEM and TEM, respectively).
Online since: August 2009
Authors: Ning Zhang Wang, Sha Sha, Yu Tian Ma
Influence of Doped Mn, Cu, Ni and Fe on Electrical Properties of SrTiO3
Ceramics
Ningzhang Wang
1,a
, Sha Sha
2,b
, Yutian Ma
3,c
1
School of Computer, Electronics and Information, Guangxi University, Nanning, Guangxi, China
2
School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi, China
3
School of Materials Science and Engineering, Guangxi University, Nanning, Guangxi, China
a
wnzh2002@sina.com, bkuaijj@163.com, c243137796@qq.com
Key words: SrTiO3 ceramics; doping; electrical properties
Abstract: MnCO3, CuO, NiO and Fe2O3 doped SrTiO3 multifunction ceramics were fabricated
firstly.
This is very important to form a structure of semiconducting grain-insulating grain boundary-semiconducting grain in SrTiO3 ceramics.
This is very important to form a structure of semiconducting grain-insulating grain boundary-semiconducting grain in SrTiO3 ceramics.
Online since: September 2014
Authors: Yi Tong Liu, Li Li
Although in certain fields, computer can realize this qualitative analysis on a certain rule or template, however, in natural language, for unstructured (or semi-structured) characteristics, the method of qualitative analysis is difficult to promote.
Equipment,benchmark viscosity) 0.68 (Temperature scale,temperature benchmark viscosity) 0.69 (Metrology Equipment,standard viscosity) 0.71 (Temperature scale, contact thermometry) 0.79 (Metrology Equipment,standard) 0.47 (Temperature scale,radiation thermometry) 0.70 (Metrology Equipment,benchmark) 0.46 (Temperature scale,pressure) 0.30 (Metrology Equipment,cornea) 0.30 (Temperature scale,RTD) 0.56 (Metrology Equipment,focal viscometer) 0.24 (Temperature scale,pressure gage) 0.16 (Metrology Equipment,calibration equipment) 0.58 (Temperature scale,micro manometer) 0.24 (Metrology Equipment,signal measurement) 0.68 (Temperature scale,liquid manometer) 0.26 (Metrology Equipment,test device) 0.62 (Temperature scale,heat) 0.76 (Metrology Equipment,interferometry) 0.13 (Temperature scale,thermometry) 0.83 (Metrology Equipment,laser ranging) 0.15 (Temperature scale,transformation temperature) 0.33 (Metrology Equipment,error) 0.20 (Temperature scale,metrology benchmark) 0.54 (Metrology Equipment,chemistry
Equipment,benchmark viscosity) 0.68 (Temperature scale,temperature benchmark viscosity) 0.69 (Metrology Equipment,standard viscosity) 0.71 (Temperature scale, contact thermometry) 0.79 (Metrology Equipment,standard) 0.47 (Temperature scale,radiation thermometry) 0.70 (Metrology Equipment,benchmark) 0.46 (Temperature scale,pressure) 0.30 (Metrology Equipment,cornea) 0.30 (Temperature scale,RTD) 0.56 (Metrology Equipment,focal viscometer) 0.24 (Temperature scale,pressure gage) 0.16 (Metrology Equipment,calibration equipment) 0.58 (Temperature scale,micro manometer) 0.24 (Metrology Equipment,signal measurement) 0.68 (Temperature scale,liquid manometer) 0.26 (Metrology Equipment,test device) 0.62 (Temperature scale,heat) 0.76 (Metrology Equipment,interferometry) 0.13 (Temperature scale,thermometry) 0.83 (Metrology Equipment,laser ranging) 0.15 (Temperature scale,transformation temperature) 0.33 (Metrology Equipment,error) 0.20 (Temperature scale,metrology benchmark) 0.54 (Metrology Equipment,chemistry
Online since: June 2008
Authors: Y. Kalinin, L.N. Kotov, Y.Y. Efimets, V.S. Vlasov, A.P. Petrakov, V.K. Turkov, A.V. Sitnikov
Structure and electric properties of the films
We obtained two series of the composite films with the compositions of (Co45Fe45Zr10)x(Al2O3)1-x,
(0.25< x< 0.64).
[3]Y.Е.Kalinin et al.: Physics and chemistry of processing of materials (2001), p.14
[3]Y.Е.Kalinin et al.: Physics and chemistry of processing of materials (2001), p.14
Online since: April 2008
Authors: Adrian Volceanov, Eniko Volceanov, Mihai Eftimie, Vasilica Dima, Adriana Petrescu, Maria Ionescu, Nicolae Ziman
GLAZES USING E-GLASS FIBERS WASTE
Vasilica Dima1,a
, Adrian Volceanov
1,b, Mihai Eftimie
1
, Adriana Petrescu
2,
Maria Ionescu2 , Nicolae Ziman3 , Enikö Volceanov
4
1 University POLITEHNICA Bucharest, Faculty of Applied Chemistry and Materials Science, 1
Polizu street, zip 011061, Bucharest, Romania, phone +40-21-4023996
2 IMA-METAV SA, 67-77 Biharia street, Bucharest, Romania
3 FAIMAR, 104 Bucharest blvd , Baia Mare, Romania
4 Metallurgical Research Institute, 30 Mehadiei street, Bucharest, Romania
a
vasilica.dima@gmail.com, b avolceanov@gmail.com
Keywords: frits, glazes, E-glass fibers waste, table ware ceramics.
The obtained data confirm some known aspects, namely: - both fibers waste and ground frit represent melted glass already bearing energy and therefore, their increased proportion in glaze compositions leads to lower melting temperatures; - the frit, obtained by remelting of glassy waste followed by quenching, has a structure with a higher energy content that makes it more reactive in comparison with fibers waste even if ground at the same specific surface area as frit.
The obtained data confirm some known aspects, namely: - both fibers waste and ground frit represent melted glass already bearing energy and therefore, their increased proportion in glaze compositions leads to lower melting temperatures; - the frit, obtained by remelting of glassy waste followed by quenching, has a structure with a higher energy content that makes it more reactive in comparison with fibers waste even if ground at the same specific surface area as frit.