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Online since: December 2023
Authors: Akihisa Inoue, Fan Li Kong, Xu Guang Zhu, Kuan Gao
Background of Commercialized BMGs and Novel-Type Nanocrystalline Alloys BMGs are a new class of metallic materials with medium-range ordered atomic configurations.
Zr-Based BMGs Although BMGs such as Pd-Au-Si and Pt-Ni-P [13] were found in the late 1960s, two main factors hindered the widespread exploration among material science researchers: the reliance of noble metals and the limited preparation method.
Nowadays, it has been recognized that these Fe-based materials have opened up new academic and engineering fields called with soft magnetic component (SMC).
For instance, their SMC materials, which are mainly composed of glassy alloy powders covered with resin and oxide mixture, exhibit saturation magnetic flux density of 1.2 - 1.3 T, coercivity of 1.9 – 3.8 A/m, permeability of 60 up to 1 MHz, core loss of about 200 kW/m3 at 100 kHz and 0.1 T and have been used in various fields such as SMC materials and RFI sheets in smartphones, PCs and automobile AV equipment devices, car navigation system etc.
Ludwig, Journal of Physics: Conference Series, 144 (2009) 012043
Online since: October 2011
Authors: Qing Li Meng, Xia Yin
An analytic solution could be got by this method, and the physical meaning is clear, but the compression strain in collision is not considered, therefore, the material behavior and geometric changes cannot be represented accurately.
Zhu Ping etc. took material overlap into account and developed a 3D contact-friction collision model on the base of the contact theory of point to surface [9].
The friction coefficient between concrete materials was selected as 0.5.
Acknowledgement The research is supported: National Natural Science Youth Foundation of China (50808163); Basic Scientific Cost for Central Public-benefit Institutes (2006B06); Open Fund Project for the Key Laboratory of Safety and Disaster Alleviation of City and Engineering of Ministry of Education supported by the Province and Ministry; Open Fund Project for Beijing Key Laboratory (EESR2008-12); Science and Technology Program of Heilongjiang Province (QC08C74); Earthquake Science Pool Foundation (106061).
,Priestley.M.J.N,and Park.R.(1988).Theoretical stress-strain model for confined concrete.Journal of Structure Engineering ASCE,114(8),1804-1825 [14] Wang Dongsheng, Fen Qimin, Wan Guoxin, ANALYSIS MODEL OF POUNDING BETWEEN ADJACENT BRIDGE GIRDERS DURING EARTHQUAKES BASED ON COLLINEAR IMPACT BETWEEN RODS, ENGINEERING MECHANICS, Vol.21, No.2, 2004.4 (in chinese) [15] Quan wei, Studies on Seismic Analysis of Large-span Bridges Subjected to Multi-component and Multi-support Earthquake Excitations, the doctoral dissertation of Dalian University of Technology, 2008.9 (in chinese)
Online since: June 2014
Authors: David Ramiro de Alba-Aguayo, Gayathri Narasimhan, Sirenia González-Pozos, Miyamin J. Miranda-Saturnino, M. Sridharan, Angélica Rueda, Ricardo Mondragón-Flores
Materials and Methods Synthesis of chitosan nanoparticles CNPs were synthesized by ionic gelation method as mentioned by Zengshuan Ma et al. [10].
Materials Deacetylated poly(D-glucosamine) or chitosan, acetic acid, sodium tripolyphosphate (TPP), sodium fluorescein, tetrasodium salt of EGTA and all other salts were purchased from Sigma Aldrich Co.
De Jong, A review of mammalian toxicity of ZnO nanoparticles, Nanotechnology, Science and Applications. 2012 (2012) 61-71
Lederer, Defective excitation-contraction coupling in experimental cardiac hypertrophy and heart failure, Science. 276 (1997) 800-6
Lim, Pharmacological activity of peroral chitosan–insulin nanoparticles in diabetic rats, International Journal of Pharmaceutics. 293 (2005) 271-280
Online since: July 2015
Authors: Mohammed Mumtaz A. Khan
Though there are ways to absorb these gases in the vacuum, selective coating has been given a high importance in the field of material sciences.
Commonly used solid storage include concrete, fire bricks, sand-rock minerals and ferroalloy materials.
Liquid state storage materials include inorganic molten salts, liquid sodium, and synthetic oils.
Kennedy, Review of mid- to high-temperature solar selective absorber materials, NREL/TP-520-31267
Part 1—concepts, materials and modellization.
Online since: August 2011
Authors: Jian Hua Wu, Hao Li, Xun Fang
As shown in Figure 4, in the program, if we adjust the value of the region of the materials transparency of the gyro-sphere shell, the invisible rotors and the lamp shaped bracket of the actual gyro-sphere will be seen clearly.
In the above simulation of the follow-up proceed, changing the value region of "Transparency" of the material of the follow-up sphere will make the sphere shell transparent and the rotation relationships between follow-up element and sensitive element appeared clearly.
Journal of Wuhan University of Technology (Transportation Science & Engineering), vol. 29, No. 3: 388-391, June, 2005
Online since: June 2013
Authors: E. Oliva, G. Berselli, F. Pini
Case Study The IR ABB IRB 6640, shown in Fig. 1, is a 6 DOF manipulator with maximum payload of 235 kg, suitable for many heavy material handling applications.
Ribickis, Increasing the energy efficiency of multi-robot production lines in the automotive industry, IEEE International Conference on Automation Science and Engineering, CASE 2012, Seoul, (2012), pp. 696-701
Heimann, Friction and rigid body identification of robot dynamics, Inernation Journal of Solids and Structure, (2001), pp. 1889-1902
Leali, The role of co-simulation in the integrated design of high-dynamics servomechanisms: an experimental evaluation, Applied Mechanics and Materials Vols. 278-280, (2013), pp. 1758-1764.
Online since: February 2013
Authors: Ying Peng Wang
From forming material source and its evolution perspective to examine the the metallogenic process should mantle-derived direct conversion to shell source (the jet deposition mine source) of mineralization process.
Deposit isotopes, fluid inclusions and rock chemical data show that ore-forming hydrothermal magmatic water, there may be a small amount of crustal material mixed into the minerals from the mantle source the metallogenic environment is active continental margin calc-alkaline environment, mainly with a producing gold mine belonging to the high-temperature hydrothermal type gold deposits to be high-temperature magmatic hydrothermal heat not only old oak gold deposit formation and provide a lot of the material basis.
References [1] Cuncang YI , En’guang QI Heilongjiang Laozuo mountain gold metallogenic regularity and deep prospecting to explore ,Gold Science and Technology [2] Ansheng Zhao, Heilongjiang Laozuo mountain gold deposit metallogenic geological conditions and prospecting advanced research [3] Jincang Zhao Summary of mineral exploration in Western Australia, Australia, 2004-2005 [J].
Journal of mineral rock 1993, 01:41-49
Online since: September 2011
Authors: Gao Lei Guo, Zheng Shou Jia, Bing Shen Liu, Hua Lin Zheng
The basic characteristics of the layered processing method is a new concept of manufacturing according to the principle of discrete/accumulation molding, and that is to get the required the shape through the constantly increasing the workpiece materials in the manufacturing process.
The flange outer edges is gentle, the wave crest appears in the concave outer edges, the wave hollow appears in the flange outer edges, so the metal liner piece is a dangerous stress choosing the high strength material than shell and corresponding measures of heat strengthening treatment.
Journal of Southwest Petroleum University(Science & Technology Edition),2010,32(6):176-179(in Chinese).
Online since: July 2023
Authors: Nian Nian Ge, Heng Yu Xu, Cai Ping Wan, Zhi Jin
Reaction Kinetics Investigation of Ni Ohmic Contacts on n-Type 4H-SiC Niannian Ge1,2,a, Caiping Wan1,2,b, Zhi Jin1,2,c and Hengyu Xu1,2,d* 1Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China 2University of Chinese Academy of Sciences, Beijing 100029, China ageniannian@ime.ac.cn, bwancaiping@ime.ac.cn, cjinzhi@ime.ac.cn, d*xuhengyu@ime.ac.cn Keywords: Ni/4H-SiC ohmic contacts, reaction kinetics, Raman spectra, active energy Abstract.
Kimoto, Material science and device physics in SiC technology for high-voltage power devices, Jpn.
Tanaka, In-situ high temperature X-ray diffraction study of Ni/SiC interface reactions, Journal of Materials Science 34 (1999) 235-239
Online since: August 2012
Authors: Wen Pei Sung, Yu Kuang Zhao, Yi Rou Chi, Lin Jun Hong
Hence, maintaining a comfort indoor temperature must depends on proper building design on insulation material, design of window and door, and HVAC installation.
Acknowledgments: This project was funded by National Science Council in Taiwan.
Richard de Dear (2000) Journal of Thermal Biology, 26: 409-414
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