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Online since: September 2013
Authors: Mao Pan, Hong Chun Cai, Yong Zhi Wang
(8)Building materials and other nonmetallic: There are 54 kinds of minerals and the sites number is 895
But development of some non-metallic materials and various building materials are not ideal because they are affected much by location and market factors.
The level of chemicals, building materials, and other non-metallic industries is relative low.
The indicators of small mining enterprises those make building materials are lower especially.
Especially the potential of metallurgical auxiliary materials and building material minerals are more abundant and still may discover large, medium-sized deposits.
Online since: August 2008
Authors: Amy J.C. Trappey, Charles V. Trappey, C.S. Liu, W.T. Lee, Y.L. Hung
The supply chain enables the manufacturers to obtain and move required materials (such as knock-down or KD parts) from the suppliers to the manufacturers and finally to the customers via a process which has fixed ends [3].
In order to replenish materials for the OEM market, logistic processes are divided into traditional supply processes and overseas supply processes.
Based on these problems, a to-be logistic model and logistic hub IT framework is derived to integrate the materials and information flows among the global supply chain partners.
Lee: Journal of Engineering Manufacture Part B Vol. 221 (2007), p. 1221-1233
Journal of Transport Geography, in press (2007) [8] A.
Online since: December 2011
Authors: Ruben Gil, J.A. Sánchez, N. Ortega, S. Plaza, B. Izquierdo, I. Pombo
On the other hand, due to the enormous mechanical load and durability requirements of such micro parts and micro structures on rolls, the machined materials have to possess high strength and hardness.
Moreover, the performance of the EDM process is independent on part material strength or hardness.
Block electrode material is copper graphite POCO EDM-C3, this electrode material is a high quality graphite infiltrated with copper.
Only the process parameter pulse off-time has a significant effect on the material removal rate.
Jerzembeck, Micro-machining of cylindrical parts by electrical discharge grinding, Journal of Materials Processing Technology 160 (2005) 15–23.
Online since: February 2015
Authors: Li Ping Xiao, Xin Hui Geng, Ge Pei
Materials and methods Adsorbent materials: calcium zeolite comes from Fuxin in Liaoning Province, China; ca-bentonite whose source is Chaoyang, Liaoning Province, China; fly ash stems from Fuxin of Liaoning Province and the content of SiO2 is 65.43%.
The pre-treatment of the absorbent: the selection of adsorbent materials is 30 ~ 100 mesh, washing 5 times with non-ammonia water.
Journal of Wuhan University of Technology(Materials Science Edition).(2009)815-817
Applied Surface Science, (2007) 5762-5766
Water Science & Technology .(2013) 2241–2248
Online since: June 2014
Authors: Imed Miraoui, Mohamed Boujelbene, Emin Bayraktar
Introduction Laser beam cutting (LBC) is a manufacturing process frequently used to cut parts of various materials.
During laser beam machining, the resultant thermal effect depends on the concentration of the beam and the physical properties of materials.
Bayraktar, ”Effects of laser cutting main parameters on microhardness and microstructure changes of stainless steel, ”Advanced Materials Research, vol. 664, pp. 811-816, 2013
Cheraghi, ”CO2 laser cut quality of 4130 steel,”International Journal of Machine Tools & Manufacture, vol. 43, pp. 351-358, 2003
Boujelbene, ”Effect of laser beam diameter on cut edge of steel plates obtained by laser machining, ”Applied Mechanics and Materials, vol. 467, pp. 227-232, 2014
Online since: January 2020
Authors: Sergey N. Lezhnev, Abdrakhman B. Naizabekov, Andrey O. Tolkushkin
Material Working by Pressure 6 (1990) 9-10
[6] Naoya Kamikawa, Tadashi Furuhara, Accumulative channel-die compression bonding (ACCB): A new severe plastic deformation process to produce bulk nanostructured metals, Journal of Materials Processing Technology 213 (2013) 1412-1418
[9] Chengpeng Wanga, Fuguo Li, Qinghua Li, Lei Wang, Numerical and experimental studies of pure copper processed by a new severe plastic deformation method, Materials Science and Engineering A 548 (2012) 19-26
Djavanroodi, Experimental and numerical analyses of pure copper during ECFE process as a novel severe plastic deformation method, Progress in Natural Science: Materials International 25 (2014) 68-74
Luca, A new severe plastic deformation method by repetitive extrusion and upsetting, Materials Science and Engineering A 595 (2014) 135-142
Online since: December 2011
Authors: De En, Jie Yu Feng, Ning Bo Zhang, Ning Ning Wang, Xiao Bin Wang
LiNbO3 crystal is a good electro-optic material.
LiNbO3 crystal is also a good acousto-optic material, whose acoustic attenuation coefficient is only 0.05dB/cm, almost all the smallest attenuation in the acousto-optic materials.
Absorption loss mainly exists in the semiconductor materials.
Acknowledgements This paper is supported by the followings: National Natural Science Foundation of China (41074090) Key Technologies R & D Program of Henan Province (022102210360) Control Engineering Key Discipline Open Foundation Program of Henan Province (KG2009-12) Science Research Priorities Program of He'nan Educational Committee (2009B4800004) References [1] Tang Tiantong and Wang Zhaohong: Integratedoptics (Science Press Publications, Beijing 2008)
[4] Wang Zhongmin: A Brief Introduction to the Development of Lithium Niobate, Journal of Synthetic Crystals, Vol. 31 (2002), p. 173~175
Online since: May 2014
Authors: Hai Yue Liu
Foreign CPI Prices of imports Purchasing prices of raw materials, fuels Prices of Industrial products Foreign exchange reserve Money supply Aggregate demand Export demand Domestic CPI Figure 1 International Transmission Path of Inflation Based on the inflation theories above, is there any statistically significant support?
LPPI (raw materials price index) is a smooth sequence, and ADF value was greater than the critical value at 1% significance level.
Therefore, in the following models and testing, the pair LCPI (consumer price index) sequences, LPPI (raw materials price index), LPPI (producer price index), LIM (imports), LEX (exports), LFR (foreign currency reserves) and LM2 (money supply) are respectively to be taken the first-order difference.
Acknowledgement This paper is sponsored by the Soft Science Fund of Science Department, Sichuan province(2013ZR0136).
Journal of Ningxia University (Social Science Edition), 2007 (3):115-116.
Online since: November 2011
Authors: Chang Peng Chen, Mei Lan Qi
First principles calculations of electronic and optical properties of Al1-xLaxN Changpeng Chen, Meilan Qi School of Science ,Wuhan University of Technology, Wuhan Hubei 430070,China 16941612@qq.com Keywords: First-principle calculations; electronic structure; optical properties; La doped AlN.
Soaresa et al[2] The research about the luminescence from Tm3+, Tb3+, Eu3+, and Tb3+ - Eu3+ couple in AlN powder samples were carried out [3]for the potential applications as the active layer in a heterostructure design or as a fluorescent material for converting the emission from a light-emitting diode to white light.
This work has been supported by the National Natural Science Foundation of China(No.10876014) References [1] J.
Soaresa, et al .Optical Materials Volume 33, Issue 7, May 2011, Pages 1055-1058
Journal of the electrochemical society 2007 Volume 154 , Issure 9  pages: J262-J266
Online since: November 2012
Authors: Zheng Zhao Liang, Yan Wang
The Numerical Simulation Model It is well known that rocks are inhomogeneous material that containing many types of micro cracks, joints and grains with different sizes, which leads to its anisotropic and nonlinear deformation behavior.
In order to describe the inhomogeneity of the rock material, we assume that the mechanical properties of the microstructural elements follow the Weibull distribution.
Table 1 Material parameters Material Density[g/cm3] Compressive strength[MPa] Internal friction angle φ[°] Elastic modulus[MPa] Poisson ratio Slate 2.7 29 28 9.2~10 0.3 In the following simulations, the model is meshed into 200×400=80,000 elements and the element size is 1mm×1mm.
Acknowledgements This work was supported by National Program on Key Basic Research Project of China (973 program) (Grant No. 2011CB013500), the Natural Science Foundation of China (Grant Nos. 51079017 and 51004020), the Foundation for the Author of National Excellent Doctoral Dissertation of PR China (No. 200960) and the Program for New Century Excellent Talents in University (NECT-09-0258).
[3] Liu H Y, Kou S Q, Lindqvist P A, Tang C A: International Journal of Rock Mechanics & Mining Sciences, Vol.39(2002), p.491-505