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Online since: August 2009
Authors: Yan Sheng Yin, Guan Hui Gao, Rui Ting Xue, Shou Gang Chen
Electronic Structure Study of Metal Complex {1,1'-[ o-Phenylenebis(nitrilomethylidyne)]di-2-naphtholato}copper(II) Ruiting Xuea , Shougang Chenb , Guanhui Gao c, Yansheng Yind* Institute of Material Science and Engineering, Ocean University of China,Qingdao 266100, PR China a email: xuert@163.com b email: sgchen2009@yahoo.com cemail: ggh___001@163.com d emaiI: yys2006@ouc.edu.cn Keywords: metal complex; density functional theory; B3LYP calculation, optic materials Abstract: The complex {1,1'-[ o-phenylenebis (nitrilomethylidyne) ] di-2-naphtholato} copper(II) was optimized by the DFT method at B3LYP/LANL2DZ level, and the frontier molecular orbitals, natural bond orbitals, nonlinear optical properties and Mülliken charge population of the optimized complex were exploited and analyzed.
The calculated results show that the complex has stable structure and it keeps some potential applications in optic materials field. 1.
Introduction: Schiff Base metal complexes have attracted increasing interest due to their extensively applications in biochemistry, material science, catalysis, encapsulation, activation, transport and separation phenomena, hydrometallurgy, etc.[1-3].
It can be concluded from the first hyperpolarizability value that the complex and its analogues may be a kind of nonlinear optic materials.
Niu, et a1, Journal of Electrochemical Society [J], 2001,148 (5):208 [4] Y.
Online since: November 2012
Authors: Ya Feng Ma, Yu Qi Wang, Lan Zheng, Tie Gao, Jia Jing Jiang
Based on the high turbidity feature of mine water, Glutinous Rice Starch(St)- Acrylamide(AM) graft polymer cationic flocculant was synthesised by copolymerization with St and AM as materials, ammonium persulfate and sodium hydrogen sulfite as the initiator, 2.3-glycigyl trimethyl ammonium chloride were used as cationic agent.
Starch modified flocculant becomes more and more popular for its selective, abundance in raw materials, low prices and non-toxic.
Experiment Instrument. main instruments were listed in table 1 Table 1 Main Instruments Instruments Type Manufacturer Electric mixer JB90-D Model factory of Shanghai Water bath SSY-H Instrument factory of Shanghai Electronic balance FAl004 Fine instrument factory of Shanghai Spectrophotometer 721 Technology company of Shanghai Drum wind drying machine DHG-9030A Instrument plant of Hongshan Spin chip vacuum pump TW-1A Instruments company of Shanghai Magnetic blender HJ-6 Experiment equipment company of Shanghai Nitrogen cylinder City saled Materials. main materials were listed in table 2 Table 2 Main Materials Materials Standard Manufacturer Glutinous Rice Starch Industrial grade City saled Acrylamide Analytically pure Chemical reagent company of Tianjin Ammonium persulfate Analytically pure Chemical reagent manufacturing company of Tianjin Sodium hydrogen sulfite Analytically pure Limited liability company of Tianjin Ethylalcohol Analytically pure Integrated management
Forum Vol. 29-31(2006), p. 5 [3] Hua Wu: submitted to Journal of Natural Sciences (1998) [4] Wenyao Yao, Shu Ming: submitted to Journal of Petrochemical (2001) [5] Ling Guo.
Zhihao Jin: submitted to Journal of Shanxi Normal University(2003) [6] Yin Hua, Peng Hui, Huixuan Liu: submitted to Journal of Environmental Science and Technology(2000) [7] With this plant, Shufen Zhang, Jinzong Yang: submitted to Journal of Applied Chemistry(2001) [8]Chouyyok W, Panpranot J, Thanachayanant C, et al.
Online since: May 2006
Authors: Leif Hermansson, Mikael Ottosson, Hakan Engqvist, Jesper Lööf, Adam Faris
The SEM and EDX analyses showed that surface films containing Ca and P (along with the other atoms present in the materials) were formed on all materials.
Thus all the tested materials showed signs of in vitro bioactivity.
Buggy: Journal of Materials Science: Materials in Medicine, 14(2003) 923-938. 2.
Hermansson: Key Engineering Materials Vols. 254-256 (2004), 265-268 3.
Kim: Current Opinion in Solid State and Materials Science, 7 (2003) 289-299. 5.
Online since: June 2012
Authors: Yong Tang Li, Jian Li Song, Fei Chen, Jun Zhang
Numerical Simulation of the Temperature Field in Multi-layer Powder-feeding Laser Cladding Forming Zhang Jun, Song Jian Li, Li Yong Tang,Chen Fei School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, China Keywords:Laser Cladding Forming; Numerically Simulation; Temperature Field; Element Birth and Death; Temperature Gradient Abstract: The numerically simulation of temperature field was carried out by the ANSYS software in multi-layer powder-feeding laser cladding forming. 3-D finite element model was found, which nonlinear characteristics of the material thermal properties and the boundary conditions of the convective transfer heat was considered; The process of powder falling into the substrate and cladding element growing was accomplished by “Element Birth and Death technology” in the process of numerical simulation.
Therefore, this paper adopts moving of the Gaussian heat source model as laser heat source model, using the “Element Birth and Death technology” to achieve powder- feeding process, using the ANSYS finite element software to simulate the temperature field of multi-layer powder-feeding laser cladding forming, it has a important significance to the choice of technological parameters in the process of laser cladding forming. 2, Building finite element model 2.1 Cladding technological parameters and the selection of materials The substrate material selects as Q235 steel, the cladding material selects as 316L stainless steel.
Research Situation and Development of Laser Rapid Prototyping Technology[J].Chinese Journal of Jiu jiang University. 2005, (1)
Chinese Journal of Zhejiang University of Technology 2011,(1)
Chinese Journal of the weld..2007,(7).
Online since: February 2011
Authors: Zheng Yi Jiang, Hei Jie Li, Pei Jie Yan, Jing Tao Han, Li Xian Liu
Investigation of High Strength Steel for Automotive Roll-Forming Parts Peijie Yan1, a, Jingtao Han1, b, Zhengyi Jiang2, c, Heijie Li1, 2, d and Lixian Liu1, e 1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, P.R.
In principle, all conductive materials and semiconductor materials can be induction heated.
Journal of Materials Processing Technology Vol. 186 (2007), p. 77
Journal of Materials Processing Technology Vol. 210 (2010), p. 2103
Journal of Materials Processing Technology Vol. 210 (2010), p. 2103
Online since: March 2011
Authors: He Quan Wang, Hai Bo Li, Yong Cai Wang, Yong Liu, Hai Wang, Wen Xia Zhao, Hong Huang, Chao Lun Liang, You Jun Deng
Fig. 4 shows the PL spectra of the ZnO various nano and microstructure materials.
Fig.4 Room-temperature PL spectra (λex = 280 nm) of as-prepared ZnO nano and micro structure materials.
Wang: Materials Today, Vol. 7 (2004) P. 26 [9] Y.X.
Hahn: Materials Research Bulletin Vol.43 (2008) P. 3483 [20] Y.L.
Fan: Journal of Crystal Growth Vol. 290 (2006) P. 405
Online since: July 2020
Authors: Zhang Ying, Chowdhury Satyajit
Composite materials have brought great convenience to human life and also promoted the progress and development of science and technology and social economy.
Plant fiber reinforced composites are widely used in building materials, automotive interior and exterior decoration materials, filtration materials and packaging materials.
Journal of Composite Materials, 51(22)(2017),3175-3185
Materials Science Forum,7 (2016),18-28
Journal of Materials Science, 49(21)(2014), 7604-7619
Online since: March 2019
Authors: Le Van Duong, P.A. Oganesyan, E.V. Kirillova, Arkady N. Soloviev
Non-uniformly polarized piezoceramic materials can be used in effective energy harvesting devices.
Mathematical Model Let us examine a piezoelectric transducer Ω, presented by a set of areas Ωj = Ωpk; k = 1, 2,..., Np; j = k with the properties of piezoelectric materials, and a set of areas Ωj = Ωem; m = 1,2,...
,Ne; j = Np + m with the properties of elastic materials.
Comparison Between Applied Theory and Finite Element Method for Energy Harvesting Non-homogeneous Piezoelements Modeling. // Advanced Materials Techniques, Physics, Mechanics and Applications.
Journal of Applied Mechanics and Technical Physics, 42(1), 2001, 164-168
Online since: July 2012
Authors: Wei Ye, Yu Bin Tang, Fang Yan Chen
Experimental Materials and Method Materials.
Denizli: Journal of Hazardous Materials, Vol. 106, Issue 6(2004), p. 93 [3] J.
Wang: Journal of Environmental Science, Vol. 22, Issue 4(2010), p. 486 [8] Y.Bulut, G.
Serhatli: Journal of Hazardous Materials, Vol. 171, Issue 6 (2009), p. 717 [9] W.S.
Aydın: Journal of Hazardous Material, Vol. 144, Issue 1-2(2007), p. 300
Online since: July 2021
Authors: Ismail Ismail, Rahwanto Adi, Akhyar Akhyar, Zulkarnain Jalil, Hazril Gursida Ariel
Magnetite nanoparticles have been an interesting material being developed because of its well-known characteristics as potential materials for various applications.
Materials and Method The pure iron sand was collected from the Syiah Kuala coastal area, Banda Aceh.
Fe3O4 nanoparticles have different properties compared to bulk materials.
Series: Materials Science and Engineering 845 012018 [9] Morel M, Martínez F, Mosquera E 2013 Synthesis and characterization of magnetite nanoparticles from mineral magnetite, Journal of Magnetism and Magnetic Materials 343 76–81 [10] Jalil Z, Rahwanto A and Handoko E 2018 MATEC Web of Conferences 197 02014 [11] Ismail I, Aini Q, Zulfalina, Jalil Z, Fadzullah S H S M 2018 Journal of Physics: Conf.
Series 1120 012061 [13] Rahwanto A, Jalil Z, Akhyar, Handoko E 2020 IOP Conference Series: Materials Science and Engineering, 931 012012 [14] Stevens P D, Fan J, Gardimalla H M R, Yen M, and Gao Y 2005 Superparamagnetic nanoparticle-supported catalysis of Suzuki cross-coupling reactions Organic Letters 7 2085-2088 [15] Abboud M, Youssef S, Podlecki J, Habchi R, Germanos G, Foucaran A 2015 Superparamagnetic Fe3O4 nanoparticles, synthesis and surface modification Materials Science in Semiconductor Processing 39 641-648 [16] Saxena N and Singh M 2017 Efficient synthesis of superparamagnetic magnetic nanoparticles under air for biomedical applications Journal of Magnetism and Magnetic Materials 429 166-176
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