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Online since: January 2012
Authors: Junya Nakamura, Tatsuo Sato, Kenji Matsuda, Susumu Ikeno, Tokimasa Kawabata, Calin D. Marioara, Sigmund J. Andersen, Randi Holmestad
Holmestad5,h 1 Graduate School of Science and Engineering for Research, University of Toyama, 3190 Gofuku, Toyama, 930-8555, Japan 2 Graduate School of Science and Engineering for Education, University of Toyama, 3190 Gofuku, Toyama, 930-8555, Japan 3 Graduate School of Science and Engineering, Tokyo Institute of Technology, Japan 4 Department of Synthesis and Properties, SINTEF Materials and Chemistry, 7465 Trondheim, Norway 5 Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway a matsuda@eng.u-toyama.ac.jp, b ikenolab@eng.u-toyama.ac.jp, c kawabata@eng.u-toyama.ac.jp, d ikeno@eng.u-toyama.ac.jp, e sato@mtl.titech.ac.jp, f Calin.D.Marioara@sintef.no, g Sigmund.J.Andersen@sintef.no, h randi.holmestad@ntnu.no Keywords: Aluminum-Magnesium-Silicon alloy, aging, precipitation, Ag/Cu addition, HRTEM.
ssss → G.P.zone → parallelogram, ( b” ) → b’→ b (2) ssss → G.P.zone → parallelogram, b” → b’, Type-A, Type-B, Type-C → b, Si (3) We also reported the effect of Ag or Cu addition on the improvement of microstructure, such as the change of the precipitation sequence, crystal structure, and enhancement of number density [6].
This precipitate has structure of β'-phase in ex.Mg-Ag alloy, while becomes the precursor of Q’-phase in Cu addition alloy.
Online since: January 2012
Authors: Ya Dong Li, Guo Cai Tian, Ding Wang
Since both the thermodynamics and kinetics of reactions carried out in ionic liquids are different to those in conventional molecular solvents, then the chemistry is different and unpredictable at our current state of knowledge.
The structure of [Emim]+, AlCl3 and Cl- in simulations are shown in Fig.1.
Fig. 1 The structure of (a)-[Emim]+, (b)-AlCl3 and (c)-Cl- in MD simulations The simulation works are performed by MDynaMix software with a version 4.3 [7], which consist two steps.
Online since: May 2016
Authors: Dominique Planson, Christophe Raynaud, Christian Brylinski, Gabriel Ferro, Mihai Lazar, Davy Carole, Selsabil Sejil, Frédéric Cayrel
Following this process scheme, 1 µm deep vertical bowls with circular shapes and different diameters have been etched into the top surface using fluoride chemistry Inductively Coupled Plasma.
Current-voltage (I-V) measurements on P/N structures have been performed with a “Signatone S1160” probe station and a “Keithley 2410” Source Measure Unit (SMU).
Electrical characterization Typical I-V characteristics measured on the VLS P/N structures are presented in Fig. 3.
Online since: April 2012
Authors: Jun Zheng, Wei Zhou
Intorduction Nano-sized calcium phosphate (nano-CP) based biomaterials, such as nano-hydroxyapatite (HAP), nano-fluorine-substituted HAP(nano-FHAP), nano-zinc-substituted HAP(nano-ZnHAP), β-TCP and etc, have been well known for their excellent biocompatibility and similarity to human bone in chemical composition and structure.
All diffraction peaks in Fig.3 could be indexed as the hexagonal structure hydroxyapatite (JCPDS file number 9-432).
Rubini: Journal of solid state chemistry Vol. 177 (2004), p. 3092-3098
Online since: May 2012
Authors: Jian Hua Gong, Ya Juan Zhao, Mang Zheng, Xiao Yan Li, Dan Dan Li, Bao Dong Ren
Synthesis and Mechanical Property of Magnetic Polyurethane JianhuaGong1,a,DandanLi2,b,XiaoyanLi3,c,MangZheng4,d,YajuanZhao*5,e , BaodongRen6,f Chemistry and materials engineering institute, Wenzhou university Wenzhou 325000, P.R.
The linear structure of segmented PU appears in the form of (A–B)n.
Addition of magnetic chain extension agent must have an effect on the structure and performance of polyurethane.
Online since: October 2007
Authors: Fei Gao, J.L. Nie, Xiao Tao Zu, Haiyan Xiao
The ideal C(100) surface is unique among the low index surfaces in its two dangling bonds per surface atom, resulting in a variety of bonding possibilities, and a rich and varied surface chemistry.
The atomic and electronic structures of C(100)(2×1)-AM have been calculated and compared with experiments.
For the (2×1)-2AM structures, our calculations indicated that the most stable configuration is a combination of the HH and T3 sites.Work function analysis showed that with AM adsorption, the work function of C(100)(2×1) surface will decrease linearly with increasing coverage, up to a minimum, and finally increase again because of the depolarization of the adsorbate performing an excellent agreement with experiments.
Online since: September 2013
Authors: Zhong Cheng Guo, Hui Huang, Ren Chun Fu, Jun Du
Aniline were purchased from Aladdin chemistry Co., Ltd. and distilled under reduced pressure prior to use.
The molecule structure and crystallites determine the mechanism of carries ( holes or polarons ) transport in polyaniline[7].
Polyaniline is consist of granular structure of conductive PANI, which form grains 20~40nm diameter, and molecule chain connect the grains[8].
Online since: November 2011
Authors: Xiao Lei Li, Dan Li
The molecular structures of flavonols were showed in Figure 2.
Flavonol 1: R1=Rutinose, R2=Glucose quercetin 3-O-rutinoside-3'-O-β-glucopyranoside Flavonol 2: R1=Rutinose, R2=H, Rutin Flavonol 4: R1=H, R2=H, Quercetin Flavonol 3: R1=Rutinose, Kaempferol 3-rutinoside Fig.2 Structures of the identified flavonoids from tartary buckwheat grains Conclusion Electrospray ionization is a kind of soft disrupt mode for a compound molecule.
Journal of Agricultural and Food Chemistry.
Online since: August 2011
Authors: Shu Jun Li, Xiao Hang Wan, Zhao Wei Dong, Sheng Yong Liu
(2) The chemistry component change cauesed by the temperture changing do not consider in cold rolling process (3) The rollers are considered as the rigidity in rolling simulation process.
In this paper the elastic-plastic and heat-mechanic model of the rolling is built with MSC.MARC, and residual stress produced during therollinging process is simulated and analyzed by dispersing the structure of the continuous body.
The material is common structure steel, which density is 7850Kg/mm3, and poisson ratio is 0.3.
Online since: July 2011
Authors: Mineo Sato, Kenji Toda, Kazuyoshi Uematsu, Sae Nakajima, Keiko Fukushi, Tadashi Ishigaki
Synthesis of anataseTiO2 having high specific surface area from a gel precursor Keiko Fukushi1, Sae Nakajima1, Kazuyoshi Uematsu2, Tadashi Ishigaki3, Kenji Toda1,3 and Mineo Sato2,3 1Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan 2Department of Chemistry and Chemical Engineering, Niigata University, Niigata 950-2181, Japan 3Center for Transdisciplinary Research, Niigata University, Niigata 950-2181, Japan ktoda@eng.niigata-u.ac.jp e-mail: ktoda@eng.niigata-u.ac.jp, tel: 025-262-6771, fax: 025-262-6771 Keywords: Low temperature, Titanate, Titanium dioxide, Anatase, High specific surface area Abstract.
Crystal structure of Na16Ti10O28 (layered structure).