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Effect of α-Al2O3 micro powder on performance of porous plug well block Zhihui Li, Sen Wang, Jing Li, Feng Wu （University of Science and Technology Liaoning，Anshan Liaoning，114051） amlzh@126.com Keywords：α-Al2O3 micro powder, Ladle, Porous plug well block Abstract：In connection with broken-down mechanics of ladle porous plug well block，with tabular alundum, allitic spinel, industrial chrome oxide as the main raw material and aluminate cement and active α-Al2O3 micro powder as binder，we prepare 9 groups porous plug well block samples，for studying the species of α-Al2O3 micro powder and impact of its addition on the properties of samples．By testing room temperature flexural strength of samples, room temperature compression strength，flexural strength after sintering at 1600℃ and heating for 3 hours, compression strength after burning，bulk density and apparent porosity before burning and after burning，thermal shock, high temperature bending strength and other performance indicators．The
Experimental The starting materials include tabular corundum, spinel, tabular corundum powder, α-Al2O3,chromium trioxide, aluminate cement, organic fiber.
Fig. 7 Loss factor of relict flexural strength of samples，% Conclusions (1) Taking tabular corundum, spinel, chromium trioxide as starting materials,α-Al2O3, and aluminate cement as binder, the well block was made by means of casting and possess good physical and chemical properties, which meets the requirements for application
Acknowledgements This work was financially supported by the National Natural Science Foundation (No.50874061) and Special Resource Protection Office of Liaoning Province (No.MZ018；No.MZ016).
Refractory, 2003, 37(4):221-222 [2] Junhui Ren, Yun Ren, Junzhan Zhang The influence of spinel on corundum-spinel castable, Journal of sillicates, 209, 28(1): 90-93

The calculated tensile stresses in the materials are the same for the Q&T-200 sample as for the Ausf-275 sample.
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Materials & design Vol. 27 (2006) No.2 pp. 141-146
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The real constants and material properties of each element types are set according to the design material, the values are shown in Table 1.
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Henan Science,2007,4:604-608 [10] Information on http: //www.math.hkbu.edu.hk/UniformDesign/

Materials and methods Materials and equipment.
The material was obtained as an ultrafine powder with a grayish white colour.
M.Li, Study on removal of organic substances in sewage by modified attapulgite, Journal of Water Resources and Water Engineering.17(2006)17-20
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Materials Science and Technology. 26 (2010) 1439-1447
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A Research on Improvement of Vertical Power Centrifugal Spraying Gun with High Speed Based-on ARIZ WuRui1, a, ChenPeifu2,b and ZhaoXintong3,c 1ChongQing University of Science & Technology, China 2ChongQing Aerospace Polytechnic, China 3Harbin University of Science & Technology, China aruiwu71716@sina.com, bcpf619@163.com, czhaoxt320@yahoo.com.cn Keywords: ARIZ, spraying gun, bearing wear Abstract: The power centrifugal spraying gun is a key facility to treat waste gas yielded in the process of garbage power.
The solution is not the best, but the ARIZ analyzing procedure is meaningful for us to solve our problems. 1.5 Acknowledgments Thanks for the support of Natural Science Foundation of Chongqing, No.CSTC, 2010BB4288.
And also thanks for the support of Educational Reform of Chongqing University of Science & Technology, No.201122 References: [1] Innovation Method Society, Teaching Materials of 2010 Innovation Method Training Course for Teachers of the Ministry of Science and Technology, Beijing, 2010, 8
[3] ZhaoCunyou, ChenGuojing, et al, Energy-saving program Design of Shearer Cutting Drum Based on ARIZ, Journal of Engineering Design. 2011, 18 (3) 159—166.

Electron Transport in AlGaAs Cylindrical Quantum Wire Sandwiched between Two GaAs Cylindrical Quantum Well Wires Mohammed Rida Qasem1,a*, Youssef Ben-Ali2,b, Farid Falyouni1,c and Driss Bria1,d 1Laboratory of Materials, Waves, Energy and Environment, Team of Acoustics, Photonics and Materials, Faculty of Sciences, Mohamed First University, Oujda, Morocco. 2Engineering Sciences Laboratory (LSI), Multidisciplinary Faculty of Taza, Sidi Mohamed Ben Abdellah University, B.P. 1223, Taza Gare, Morocco.
Light: Science & Applications, 10(1), 1-7. (2021)
Journal of Applied Physics, 126(24), 241102.(2019)
Advanced Materials, 32(18), 1904359. (2020)
Microelectronics Journal, 41(2-3), 155–161. (2010)

Gear material is 45 steel with thermal refining, and accuracy class is seven.
The gear material is 45 steel with thermal refining and the contact fatigue limit stress is .
Acknowledgment It is a project supported by National Natural Science Foundation of China.
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Silberschmidt: Computational Materials Science, Vol. 39 (2007), p. 149-154
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Silberschmidt: Computational Materials and Continua (2010) Submitted
Silberschmidt: Advanced Materials Research.
Silberschmidt: Advanced Materials Research.

Another advantage of nanofibrillar cellulose is that their production does not interfere with the food chain, therefore, they can be considered as socially sustainable raw materials.
Application Cellulose is a versatile starting material for several applications.
It is directly linked to the paper industry in which cellulose is used in a conventional way, as a structural material for paper and cardboard products and also in textiles to made cotton, linen, and other plant fibers.
On the other hand, nanobiohybrid (NBH) catalyst consist of supported material and enzyme.
Samir, Journal of Adhesion Science and Technology 22 (2008) 545-567