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Synthesis and Properties of Diphenylquinoxaline as Electron-transporting materials LI Tingxi a, SUI Peng b, GAO Susu, KONG Na, WU Shasha, LI Shanting and NIU Zhanrui School of Materials Science and Engineering, Shandong Univesity of Scinece & Technology, Qingdao 266510, China alitx@sdust.edu.cn, bsuipeng412@163.com Key words: organic electroluminescent materi; electron-transporting materials; amide acylation reaction; bis-(2,3-diphenylquinoxaline); device.
The organic electroluminescent core materials include luminescence materials, hole-transporting materials and electron-transporting materials.
The sdudy of luminescence materials and hole-transporting materials has made great progress, but electron-transporting materials relatively lags.
As electron-transporting materials, it is widely used in organic electroluminescent devices.
Holmes: Nature Vol. (1990), p. 347 [4] Wang Xin, Shen Juan and Xu Hongyao: Journal of Functional Materials Vol. 39(2008), p.1555 [5] Zhang Xiaobing, Zhang Zimin, Zhang Yugui and Li Min: Chinese Journal of Organic Chemistry Vol. 29(2009), p.297 [6] Peng Zhang, Benchen Tang, Wenjing Tian, Bing Yang and Min Li: Mater.

Introduction Since the mid-1980s, the processing of Functionally Gradient Materials(FGMs) and structures has become an academic interest.
The feedstock materials are delivered by argon gas(99.999%) injected through a coaxial powder feeding nozzle(Fig.1) and deposited at a rate of 500mm/min in order to prevent heavy oxidization.
Mazumder: Materials Science and Engineering A Vol. 509 (2009), p. 98-104 [3] Q.X.
Huang: Materials Science and Engineering A Vol. 391 (2005), p. 325-336 [5] M.L.
Chen, et al.: Chinese Journal of Lasers Vol. 32 (2005), p. 567-570.

The Rationalization of Production of Ring-Shaped Drop Forgings using Computer Simulation of Closed-Die Forging Process Mária Kapustová Slovak University of Technology in Bratislava, Faculty of Material Science and Technology in Trnava, Institute of Production Technologies, Slovak Republic maria.kapustova@stuba.sk Keywords: closed-die forging, flash, ring-shaped drop forging, computer simulation, material flow.
Bohnsak: Closed die technologies for hot forging, in: Journal of Materials Processing Technology, Vol. 98 (2000) 165-170
Kuhlmann: Guidelines for precision hot forging with applications, in: Journal of Materials Processing Technology, Vol.98 (2000) 182-188
Jou: Application of numerical simulation for wear analysis of warm forging die, in: Journal of Material Processing Technology, Vol.140 (2003) 43-48
Brooks: Friction during precision forging of high temperature aerospace materials, in: Materials Science and Technology, 28 (5) (2012) 528-531.

For example, it fails to detect microcracks generated inside the materials before visible or audible failure.
Materials and Methods Four different bone cement materials were synthesized for mechanical evaluation and labeled according to the type of monomer used and the concentration as displayed in table 1.
Prendergast: International Journal of Fatigue, Vol. 22, (2000), p. 855–864
Sinclair: Journal of Biomedical Materials Research Part A, (2008), p. 1088-1097
Mann: Journal of Materials Science: Materials in Medicine, Vol. 21, (2010), p. 2915–2922

SC electrode materials mainly include carbon materials, conductive polymers, metal oxide/hydroxide, [6] etc.
Journal of Materials Chemistry A, 7, PP: 16028-16045, 2019. https://doi.org/10.1039/C9TA04436A [2] Wang G, Zhang L, Zhang J.
Journal of Materials Science and Chemical Engineering, 8, PP: 35-43, 2020. https://doi.org/10.4236/msce.2020.81004 [9] Lu Z, Xu W, Zhu W, Yang Q, Lei X, Liu J, Li Y, Sun X, Duan X.
Journal of Materials Chemistry, 20, PP: 7135-7143, 2010. https://doi.org/10.1039/C0JM00744G [12] Chiu K L, Lin L Y.
Journal of Materials Chemistry A, 7, PP: 4626-4639, 2019. https://doi.org/10.1039/c8ta11471d [13] Huang G, Zhang W, Xu S, Li Y, Yang Y.

Material Source Analysis of the Potash Deposit in Mengyejing, Yunnan Jian Jiao1,2,a, Mianping Zheng*2,b, Zhen Zhang2, Nana Tan3, Zhijie Zheng4 1College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing, China 100083 2Chinese Academy of Geological Sciences Institute of Mineral Resources, Beijing, China 100037 3College of Engineering and Technology, China University of Geosciences, Beijing, China 100083 4Nanjing University of Earth Science and Engineering, Nanjing, China 210093 ajtjj1999@163.com, bsjerr@163.com Key words: Mengyejing; Potash; Material source Abstract: The Mengyejing potash deposit is the only solid chloride type potash deposit in our country.
There has been divergence about the source material of this deposit.
Science, Vol. 189 (1975), p 419-426
Journal of Chengdu University of technology, Vol. 29, No. 5(2002)
Journal of Saltlake Research, Vol. 18, No. 4(2010)

Reflections on Technology Transfer Between University’s Schools of Engineering and Sciences and Industry in Nigeria A.I.
▪Lack of utilization of local raw materials and inappropriate government policies have resulted in making Nigerian industries to be import dependent.
On the contrary, the driving force for academics is towards publishing basic research findings in journals which is necessary for their academic career.
▪Multinational companies should be encouraged to establish research and development facilities locally and source for local raw materials for their production process.
Implications for organization Science, Vol.1, pp. 47-81

Xu Department of Electronic Science and Technology, P.O.
It is highly attractive for solid mechanics applications, especially to new materials, such as IR window materials.
It can be used both in a reflection mode (for opaque materials) and in a transmission mode (for transparent materials).
CGS is very effective for the fracture study of IR window materials.
Rosakis: International Journal of Fracture.

Inorganic-organic hybrid materials are divided into two classes [2-5].
Hybrid materials with only weak chemical bonding between organic and inorganic networks are called Class I hybrid materials; those with strong bonding are called Class II hybrid materials.
Pelli, Journal of Sol-Gel Science and Technology, Vol.8 (1997), P.991 [2] A.
Sobolevsky, Journal of Sol-Gel Science and Technology, Vol. 8 (1997) P.581 [14] G.
Sommerdijk: Sol-Gel Materials Chemistry and Applications (the Gordon and Breach Science Publishers, Netherlands 2001)

Synthesis and Application of Electronic Transporting Materials Li Tingxi a, Gao Susu b, Sui Peng, Kong Na, Wu Shasha, Li Shanting School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, China alitx@sdust.edu.cn, bsusugao@126.com Key words: organic EL, pyridine-containing compounds, energy-saving, environmental protection, electronic transporting material.
A number of emission materials and hole-transporting materials were reported.
In contrast, materials for electron-transporting materials are few.
ET Materials No.
Journal of Materials Science and Technology. 2008; 24:753-756.