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Online since: October 2011
Authors: Lin Jia, Xiang Jun Qi, Guo Li Gong, Hui Li
Preparation and characterization of molecular imprinted polymers of tetracycline antibiotics by mixed-templates
Guo-li Gong1,a, Lin Jia1,b, Hui Li2,c and Xiang-jun Qi1,d
1College of Life Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
2College of Resource and Environment, Shaanxi University of Science and Technology, Xi’an 710021, P.
The results showed that the mixed-templates MIPs had high selection for tetracycline, and were expected to be used as separation materials for the extraction and purification of TCs in animal food.
Oxytetracycline Chlortetracycline Tetracycline Fig. 1 The structure of tetracycline antibiotics Materials and methods Reagents OTC, CTC, TC, azoisobutyronitrile(AIBN), ethylene glycol dimethacrylate (EGDMA) and methacrylic acid (MAA) were obtained from Sigma Company(St.
The results showed that the imprinted polymers had better selectivity for tetracycline, and they were expected to be used as the packing materials of the SPE columns to apply to the actual detection.
Harris: Journal of Chromatography A 1218 (2011) 2189–2195
The results showed that the mixed-templates MIPs had high selection for tetracycline, and were expected to be used as separation materials for the extraction and purification of TCs in animal food.
Oxytetracycline Chlortetracycline Tetracycline Fig. 1 The structure of tetracycline antibiotics Materials and methods Reagents OTC, CTC, TC, azoisobutyronitrile(AIBN), ethylene glycol dimethacrylate (EGDMA) and methacrylic acid (MAA) were obtained from Sigma Company(St.
The results showed that the imprinted polymers had better selectivity for tetracycline, and they were expected to be used as the packing materials of the SPE columns to apply to the actual detection.
Harris: Journal of Chromatography A 1218 (2011) 2189–2195
Online since: July 2017
Authors: Elvis K. Tiburu, Edmund O. Aidoo, Ali Salifu, Heidimarie N.A. Fleischer, Gloria Manu, Abu Yaya, Han Zhou, Johnson K. Efavi
The data revealed materials with increasing pore structures as a function of chitosan concentration.
The significance of the current work was to encourage the creation of biofunctional materials from local materials because such materials are natural and might possess the right balance of minerals that could easily be manipulated for several applications.
Coronado, Hybrid Materials Based on Magnetic Layered Double Hydroxides: A Molecular Perspective, Acc Chem.
King, Seaweed composition from Bintulu coast of Sarawak, Malaysia, Pakistan journal of biological sciences : PJBS, 17 (2014) 1007-1014
Rocha, Determination of the degree of acetylation of chitin materials by 13C CP/MAS NMR spectroscopy, Int.
The significance of the current work was to encourage the creation of biofunctional materials from local materials because such materials are natural and might possess the right balance of minerals that could easily be manipulated for several applications.
Coronado, Hybrid Materials Based on Magnetic Layered Double Hydroxides: A Molecular Perspective, Acc Chem.
King, Seaweed composition from Bintulu coast of Sarawak, Malaysia, Pakistan journal of biological sciences : PJBS, 17 (2014) 1007-1014
Rocha, Determination of the degree of acetylation of chitin materials by 13C CP/MAS NMR spectroscopy, Int.
Online since: April 2012
Authors: Shiun Wei Chang, Chun Ming Chen, Ju Liang He
Power Modulated Plasma-Polymerized Anti-fingerprint Transparent Protective Coating with a Gradient Composition
Shiun-Wei Chang1, a, Chun-Ming Chen1, b, Ju-Liang He1, c
1Department of Materials Science and Engineering, Feng Chia University, Taichung City, 40724, Taiwan.
Introduction Polymeric materials, with lightweight, formability, flexibility and high transmittance, have been applied widely in flexible substrates and housing parts of modern electronic wares.
Unfortunately, the commonly used low surface energy fluorocarbon based anti-fingerprint materials exhibit poor mechanical strength.
On the contrary, mechanically durable materials usually do not acquire enough low surface energy for satisfactory anti-fingerprint performance.
Nakamae, Poly (vinyl alcohol) with low surface free energy by fluorination, International Journal of Adhesion and Adhesives 19 (1999) 399-403
Introduction Polymeric materials, with lightweight, formability, flexibility and high transmittance, have been applied widely in flexible substrates and housing parts of modern electronic wares.
Unfortunately, the commonly used low surface energy fluorocarbon based anti-fingerprint materials exhibit poor mechanical strength.
On the contrary, mechanically durable materials usually do not acquire enough low surface energy for satisfactory anti-fingerprint performance.
Nakamae, Poly (vinyl alcohol) with low surface free energy by fluorination, International Journal of Adhesion and Adhesives 19 (1999) 399-403
Online since: September 2011
Authors: Le Ping Chen, Xue Dao Shu, Xin Hong Wei
Introduction
Cross Wedge Rolling (CWR) is a new technique of forming shaft parts, which has many merits, such as higher efficiency, saving materials, etc., and been more and more widely used at home and abroad[1-5].
Acknowledgements The project was supported by the National Natural Science Foundation of China (Grant No. 51075216), the Science Foundation for Distinguished Young Scholars of Zhejiang (Grant No.
Pater: Journal of Materials Processing Technology,Vol.80-81 (1998),pp.370-375
Hu: Journal of Materials Processing Technology, Vol.187 (2007), pp.752-756
Hu: Journal of Plasticity Engineering.Vol.17 (2010) No.2,pp.79-84.
Acknowledgements The project was supported by the National Natural Science Foundation of China (Grant No. 51075216), the Science Foundation for Distinguished Young Scholars of Zhejiang (Grant No.
Pater: Journal of Materials Processing Technology,Vol.80-81 (1998),pp.370-375
Hu: Journal of Materials Processing Technology, Vol.187 (2007), pp.752-756
Hu: Journal of Plasticity Engineering.Vol.17 (2010) No.2,pp.79-84.
Online since: May 2011
Authors: Zong Qiang Zeng, Zheng Peng, Ling Xue Kong, Hong Chao Liu
Experimental
Raw materials
NR was obtained from Hainan Rubber Group Co Ltd.
The other compounding agents are commonly used industrial materials.
These observations suggest that in situ generated ZDS can form strong interfaces with NR at low loading and obstruct the diffusion and infiltration of oxygen into composite materials, improving the thermal aging properties of composite material.
Patent 4720526.(1988) [6] XH Yuan, ZL Peng, Y Zhang, et al.: Journal of Applied Polymer Science, 2000,77, p2740 [7] Z L Peng, Y X Zhang, et al.
:Journal of Applied Polymer Science, 2006, 101(5), p3442-3447.
The other compounding agents are commonly used industrial materials.
These observations suggest that in situ generated ZDS can form strong interfaces with NR at low loading and obstruct the diffusion and infiltration of oxygen into composite materials, improving the thermal aging properties of composite material.
Patent 4720526.(1988) [6] XH Yuan, ZL Peng, Y Zhang, et al.: Journal of Applied Polymer Science, 2000,77, p2740 [7] Z L Peng, Y X Zhang, et al.
:Journal of Applied Polymer Science, 2006, 101(5), p3442-3447.
Online since: September 2013
Authors: Xi Cheng Xue, Liang Liang Zheng
debris flow activity provided the material conditions.
Acknowledgements This work was financially supported by Shaanxi Nature Science Fund Project (SJ08-ZT08-3).
Journal of Mountain Research,Vol.20,No.2,p.212-217,2002.
In Chinese [10] Zhenfu Luo, Dachen Pu, Hongbin Xie etc, “Landslide Hazard Evaluation in Debris Flow Catchment Area Based on GIS and Information Method”.China Safety Science Journal,Vol.21,No.11,p.145-150,2011.
Journal of Jilin University,Vol.42,No.1,p.150-160,2012.In Chinese
Acknowledgements This work was financially supported by Shaanxi Nature Science Fund Project (SJ08-ZT08-3).
Journal of Mountain Research,Vol.20,No.2,p.212-217,2002.
In Chinese [10] Zhenfu Luo, Dachen Pu, Hongbin Xie etc, “Landslide Hazard Evaluation in Debris Flow Catchment Area Based on GIS and Information Method”.China Safety Science Journal,Vol.21,No.11,p.145-150,2011.
Journal of Jilin University,Vol.42,No.1,p.150-160,2012.In Chinese
Online since: October 2025
Authors: Shamsher Ali, Ibrahim Asim, Syed Aliyar Shah, Moiz Ahmad, Muhammad Rehan Khan
Material and Methods
In this study, we employed three types of polymer materials commonly used for 3D printing applications: Polylactic Acid (PLA) and Acrylonitrile Butadiene Styrene (ABS).
In Table 3, PLA-WM Exhibits the largest damage area, indicating the least impact resistance among the three materials tested.
Figure 4 graphically shows the statistical comparison of the impact resistance of the materials studied and the results show significant differences between the PLA-WM and PLA materials on one hand and ABS on the other hand.
The printing parameters vary a lot, and may greatly influence the influence resistance of 3D printed materials.
Impact resistance and failure mechanism of 3D printed continuous fiber-reinforced cellular composites. the Journal of the Textile Institute/Journal of the Textile Institute, 112(5), 752–766
In Table 3, PLA-WM Exhibits the largest damage area, indicating the least impact resistance among the three materials tested.
Figure 4 graphically shows the statistical comparison of the impact resistance of the materials studied and the results show significant differences between the PLA-WM and PLA materials on one hand and ABS on the other hand.
The printing parameters vary a lot, and may greatly influence the influence resistance of 3D printed materials.
Impact resistance and failure mechanism of 3D printed continuous fiber-reinforced cellular composites. the Journal of the Textile Institute/Journal of the Textile Institute, 112(5), 752–766
Online since: August 2017
Authors: Rudolf Zaujec, Vladimír Šimna, Tomáš Vopát, Peter Pokorný
Deformation and FEM Analysis of the Chip Root in Face Milling Process
POKORNÝ Peter1,a, ZAUJEC Rudolf1,b*, ŠIMNA Vladimír1,c,
VOPÁT Tomáš1,d
1Slovak University of Technology, Faculty of Materials Science and Technology in Trnava,
Institute of Production Technologies, Bottová 21, Slovakia
apeter_pokorny@stuba.sk, brudolf.zaujec@stuba.sk, cvladimir.simna@stuba.sk,
dtomas.vopat@stuba.sk
Keywords: chip root, degree of deformation, sample, milling, simulation, process, calculation
Abstract: This paper was focused on analysis of deformation process in the chip root after milling of C45 medium carbon steel.
The workpiece has been set as plastic, from a catalogue of materials were loaded material C45.
Research of influence of selected characteristics of machining process on achieved quality of machined surface and problem free assembly using high Technologies, project VEGA no. 1/0097/17: “The research of novel method for cutting edge preparation to increase the tool performance in machining of difficult-to-machine materials”.
Jurko, Evaluation of T-vc dependence for the most commonly used cutting tools, Key Engineering Materials, 669, pp. 311-318, (2016), ISSN: 1662-9795 [7] J.
Morphology of the chip formation at orthogonal high speed milling of AISI H13, (2016) Key Engineering Materials, 686, pp. 45-50
The workpiece has been set as plastic, from a catalogue of materials were loaded material C45.
Research of influence of selected characteristics of machining process on achieved quality of machined surface and problem free assembly using high Technologies, project VEGA no. 1/0097/17: “The research of novel method for cutting edge preparation to increase the tool performance in machining of difficult-to-machine materials”.
Jurko, Evaluation of T-vc dependence for the most commonly used cutting tools, Key Engineering Materials, 669, pp. 311-318, (2016), ISSN: 1662-9795 [7] J.
Morphology of the chip formation at orthogonal high speed milling of AISI H13, (2016) Key Engineering Materials, 686, pp. 45-50
Online since: July 2006
Authors: S.Q. Yao, Jian Xin Deng, Jun Zhou, C. Li, Xue Feng Yang
Al2O3/(W,
Ti)C and Al2O3/SiCw ceramic composite have great capabilities in wear resistance; they are
excellent materials of cutting tools and dies.
Table 1 The mechanics behaviors of three ceramic composite Materials Fracture toughness [MPa.m 1/2] Flexure strength [ MPa] Hardness [ GPa] Density [g/cm3] Al2O3/(W,Ti)C 5.1 850 21.5 6.64 Al2O3/Ti(C,N) 4.9 880 21 6.6 Al2O3/SiCw 8.5 780 20 5.8 Fig.1 Friction and wear experiment structure The wear and tear of Al2O3 based ceramic wire drawing was weighed by the high precision electronic scales, the decrease of weight indicated the volume of wear, and then the wear rate was figured out.
Acknowledgements This work was supported by the National Natural Science Foundation of China (50275088, 50475133).
Deng: Chinese Journal of Mechanical Engineering, Vol.38 (2002) No.4, pp.40-45
Ai: Chinese Journal of Materials Research, Vol.11 (1997) No.3, pp.252-258
Table 1 The mechanics behaviors of three ceramic composite Materials Fracture toughness [MPa.m 1/2] Flexure strength [ MPa] Hardness [ GPa] Density [g/cm3] Al2O3/(W,Ti)C 5.1 850 21.5 6.64 Al2O3/Ti(C,N) 4.9 880 21 6.6 Al2O3/SiCw 8.5 780 20 5.8 Fig.1 Friction and wear experiment structure The wear and tear of Al2O3 based ceramic wire drawing was weighed by the high precision electronic scales, the decrease of weight indicated the volume of wear, and then the wear rate was figured out.
Acknowledgements This work was supported by the National Natural Science Foundation of China (50275088, 50475133).
Deng: Chinese Journal of Mechanical Engineering, Vol.38 (2002) No.4, pp.40-45
Ai: Chinese Journal of Materials Research, Vol.11 (1997) No.3, pp.252-258
Online since: December 2016
Authors: Dong Wei Shu, Guo Xing Lu, Zhi Ye Zhao, Si Cong Liu, Ying Xin Zhou
The materials used in D8 are suitable for our bolts, which can be used to fabricate future specimens.
Li, A new energy-absorbing bolt for rock support in high stress rock masses, International Journal of Rock Mechanics And Mining Sciences, vol. 47 (2010), 396-404
Windsor, Rock reinforcement systems, International Journal of Rock Mechanics and Mining Sciences, Volume 34(1997), 919-951
Peng, Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance, International Journal of Rock Mechanics and Mining Sciences, 67(2014), 29-42
PhD Thesis, 2013, Department of Mining and Materials Engineering, McGill University, Montreal
Li, A new energy-absorbing bolt for rock support in high stress rock masses, International Journal of Rock Mechanics And Mining Sciences, vol. 47 (2010), 396-404
Windsor, Rock reinforcement systems, International Journal of Rock Mechanics and Mining Sciences, Volume 34(1997), 919-951
Peng, Development of a novel energy-absorbing bolt with extraordinarily large elongation and constant resistance, International Journal of Rock Mechanics and Mining Sciences, 67(2014), 29-42
PhD Thesis, 2013, Department of Mining and Materials Engineering, McGill University, Montreal