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Online since: June 2014
Authors: Odd Sture Hopperstad, Kai Zhang, Stéphane Dumoulin, Bjørn Holmedal
Use of plane-strain tension and shear tests to evaluate yield surfaces for AA1050 aluminium sheet
Kai Zhang1,a *, Bjørn Holmedal1,b, Odd Sture Hopperstad2,3,c
and Stéphane Dumoulin4,d
1Department of Materials Science and Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
2Department of Structural Engineering, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
3Structural Impact Laboratory (SIMLab), Center for Research-based Innovation, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway
4SINTEF Materials and Chemistry, NO-7465 Trondheim, Norway
akai.zhang@ntnu.no, bbjorn.holmedal@ntnu.no, codd.hopperstad@ntnu.no, dStephane.Dumoulin@sintef.no
Keywords: Yld2004-18p, parameter identification, Alamel Type III model, multi-level modelling, finite element simulation
Abstract.
It was in a fully annealed state and the grain structure was almost equiaxed with a grain size of ~100 µm.
It was in a fully annealed state and the grain structure was almost equiaxed with a grain size of ~100 µm.
Online since: June 2014
Authors: Shao Hua Li, Ying Ying Zhao, Jun Qing Yang, Guo Yan Zhang, Ju Rui Qi
Multi-walled carbon nanotubes (MWCNTs, 20-30nm in diameter, ≥95%) were purchased from Chengdu Organic Chemistry Co.
Additionally, the MWCNTs-modified GCE was stored at 4 °C in the refrigerator for 1 week, the electrochemical response remained constant for HQ concentration of 10-4 mol·L-1, indicating that the excellent MWCNTs-modified GCE was obtained and suitable for the determination of HQ. 3.7 Linearity range and the detection limit The chemical principle for differential pulse voltammetry (DPV) in this study is the electrochemical redox of quinone structures, which is schematically represented by a generic expression as .
Additionally, the MWCNTs-modified GCE was stored at 4 °C in the refrigerator for 1 week, the electrochemical response remained constant for HQ concentration of 10-4 mol·L-1, indicating that the excellent MWCNTs-modified GCE was obtained and suitable for the determination of HQ. 3.7 Linearity range and the detection limit The chemical principle for differential pulse voltammetry (DPV) in this study is the electrochemical redox of quinone structures, which is schematically represented by a generic expression as .
Online since: December 2014
Authors: Bo Wang, Qiu Ping Zhou
Introduction
Waste printed cicuit board (WPCB) is a typical component of electronic waste, which is characterized by its complex structure, high content of metals and toxic substances [1~3].
Journal Fuel Chemistry and Technology, 35(2007):548-552.
Journal Fuel Chemistry and Technology, 35(2007):548-552.
Online since: February 2016
Authors: G.G. Mikhailov, L.A. Makrovets, L.A. Smirnov
Using REMs allows us to influence intergranular borders in steel, reduce a primary cast granular structure, drive down anisotropy of mechanical properties, and diminish size of nonmetallic inclusions.
Turkdogan, Physical Chemistry of High Temperature Technology, Academic Press, Inc, New York, 1980
Turkdogan, Physical Chemistry of High Temperature Technology, Academic Press, Inc, New York, 1980
Online since: August 2019
Authors: Gang Chen, Qiang Deng, Man Liu, Xiao Lu, Xuan Gang Meng, Jin Ling Li, Shi Jun Chen
Composite Plugging Removal Technology and Application in Low Permeability Oilfield
DENG Qiang1*, LIU Man2, LU Xiao2, Meng Xuangang3,
LI Jinling1,4, CHEN Shijun1, CHEN Gang1,4*
1College of Chemistry and Chemical Engineering, Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an, China
2Oil Production Plant No. 11, PetroChina Changqing Oilfield Company, Xi’an, China
3Qilicun Oil Production Plant, Yanchang Oilfield Company, Yan'an, China
4State Key Laboratory of Petroleum Pollution Control, CNPC Research Institute of Safety and Environmental Technology, Beijing, China
*Corresponding author, Email: gangchen@xsyu.edu.cn
Keywords: Composite plugging removal; Low permeability; Acidizing formula
Abstract.
Chen, Corrosion inhibition and structure-efficiency relationship study of CTAC and CDHAC, Desalination and Water Treatment, 2019, 139: 1-6.
Chen, Corrosion inhibition and structure-efficiency relationship study of CTAC and CDHAC, Desalination and Water Treatment, 2019, 139: 1-6.
Online since: May 2019
Authors: Bengt Gunnar Svensson, Laurentiu Fara, Roxana Trusca, Constantin Dumitru, Dan Savastru, Laurentiu Baschir, Irinela Chilibon, Ørnulf Nordseth, Raj Kumar, Sean Erik Foss, Cristina Vasiliu, Silvian Fara, Florin Dragan, Mihaela Filipescu
In general, for thin-film optical applications it is desirable to have a columnar grain structure with a lateral grain size that is larger than the thickness of the thin film [13].
Svensson, Optical Analysis of a ZnO/Cu2O Subcell in a Silicon-Based Tandem Heterojunction Solar Cell, Green and Sustainable Chemistry 7 (2017) 57-69.
Svensson, Optical Analysis of a ZnO/Cu2O Subcell in a Silicon-Based Tandem Heterojunction Solar Cell, Green and Sustainable Chemistry 7 (2017) 57-69.
Online since: July 2020
Authors: Mohd Sabri Mohd Ghazali, Wan Rafizah Wan Abdullah, Noradhiha Farahin Ibrahim, Maishara Syazrinni Rooshde, Amie Zaidah Amran, Fazilah Ariffin
Table 1 Antibacterial activity of Ce doped ZnO against S. aureus and E. coli
Sample (0.1g)
Zone of inhibition (mm)
S. aureus
E. coli
Mean
Standard deviation
Mean
Standard deviation
Control
Gentamicin (disk)
22.67
1.53
14.33
2.08
ZnO
16.00
2.52
15.00
3.00
CeO2
12.00
0.00
0.00
0.00
Ce doped ZnO
0.4 mol % Ce doped ZnO
16.00
0.00
0.00
0.00
It is hypothesised that Gram positive bacteria have weaker cell wall structures, physiology and metabolism compared to Gram negative bacteria.
Kim, Inverted polymer solar cells with brush-painted ZnO electron transport layer, Journal of industrial and engineering chemistry. 59 (2018) 335-340
Kim, Inverted polymer solar cells with brush-painted ZnO electron transport layer, Journal of industrial and engineering chemistry. 59 (2018) 335-340
Online since: February 2020
Authors: Yun Ma, Hai Tao Bai, Shi Tao Liu, Hong Zhang, Yu Han Feng, Shun Chao Gou
Study on Affecting Factors and Mechanism of Oil Tubing Corrosion in Northern Shaanxi Oil Field
Yun MA1,2,a, Shitao LIU3,b*, Hong ZHANG4,c, Yuhan Feng4,d, Shunchao Gou4,e, Haitao BAI5,f
1College of Petroleum Engineering, Shaanxi Province Key Laboratory of Advanced Stimulation Technology for Oil & Gas Reservoirs, Xi’an Shiyou University, Xi’an 710065, China
2Engineering Research Center of Development and Management for Low to Ultra-Low Permeability Oil & Gas Reservoirs in West China, Ministry of Education, Xi’an, 71006, China
3College of Chemistry and Chemical Engineering, Xi’an Shiyou University, Xi’an 710065, China
4Production Logging Center, China Petroleum Logging Company Limited, Xi’an, 710200, China
5College of Petroleum Engineering, Xi’an Shiyou University, Xi’an, China
E-mail: amayun9401@xsyu.edu.cn; b1213904945@qq.com; cZhanghongcq@cnpc.com.cn;
dfengyuhancq@cnpc.com.cn; egouscsccj@cnpc.com.cn; fBaihaitao_xsyu@126.com
Keywords: Tubing; Corrosion; Influencing factor; Mechanism
In order to more accurately analyze the corrosion factors, this study adopts the principal component analysis and grey correlation analysis method, starting from the internal structure of the data, through the comprehensive evaluation index change involves empowerment, weakened the subjective influence in the multi-index comprehensive evaluation system, and then get the optimum factors affecting corrosion. 2.2.1 Principal component analysis.
In order to more accurately analyze the corrosion factors, this study adopts the principal component analysis and grey correlation analysis method, starting from the internal structure of the data, through the comprehensive evaluation index change involves empowerment, weakened the subjective influence in the multi-index comprehensive evaluation system, and then get the optimum factors affecting corrosion. 2.2.1 Principal component analysis.
Online since: June 2013
Authors: Xavier Tardif, Nicolas Boyard, Didier Delaunay, Vincent Sobotka, Nicolas Lefèvre
The structure of the method is based on an iterative algorithm.
Lauritzen and Hoffman J D, “Theory of formation of polymer crystals with folded chains in dilute solution,” Journal of research of the national bureau of standards section a-physics and chemistry, vol. 64, no. 1, pp. 73–102, 1960
Lauritzen and Hoffman J D, “Theory of formation of polymer crystals with folded chains in dilute solution,” Journal of research of the national bureau of standards section a-physics and chemistry, vol. 64, no. 1, pp. 73–102, 1960
Online since: January 2017
Authors: Yu Ping Li, Xue Mei Liu, Wen Hui Ma, Xiu Hua Chen, Yue Chun Wang, Ping Bi, Fu Wei Xiang
The structure, composition, sheet resistance, surface morphology and failure mechanism were studied in order to get the NiMoB film with good barrier properties.
[20] Jeong-Ran Choi, Young Sil Lee and Soo-Jin Park: Journal of Industrial and Engineering Chemistry, Vol. 20 (2014) No.5, p.3421-3424
[20] Jeong-Ran Choi, Young Sil Lee and Soo-Jin Park: Journal of Industrial and Engineering Chemistry, Vol. 20 (2014) No.5, p.3421-3424