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Keyseat is an important geometry for this function on the shaft[1].Plain key is a kind of most commonly used keys, and with plain key both the journal of the shaft and the hob are required to make the keyseat.
Precision journal is even machined to the tolerance class of IT5, and tolerance of counterpart keyseat is rather high that can hardly be reached with the common methods[2].
Material of the work is 45,that of the cutting tool is HSS with ,teeth = 14, diameter of the three-face cutter is φ28mm,width B=10mm, ,.
[2] J.Li:Fundamentals of Interchangeability and Measurement(Press of Central China University of Science and Technology , China 2006)
[5] H.Wang and S.J.Wang: Proceedings of 2006’ Second Conference of Science and Technology/ Association Reform and Development of Seven Provinces and Cities.

One of the primary characteristics of e-learning is its capability to integrate different media, such as text, picture, audio, animation and video to generate a multimedia instructional material, promoting the reading interests and willingness of the learners.
Acknowledgements The author would like to thank the National Science Council, Taiwan ROC, for financial support under Contract No.
Part of this research was done when the author was a visiting faculty in the Department of Computer Science at Binghamton University.
Mayer: Journal of Educational Psychology, Vol. 97(1) (2005), p. 117 [4] C.
Kennedy: Journal of Interactive Learning Research, Vol. 15 (2004), p. 43 [6] H.

Introduction of baking temperature of carbon anode To ensure the uniform heating of carbon anode, N division material thermocouples are installed at the top, bottom and side of the carbon block trunk and N division flue thermocouples are installed in the middle of combustion chamber.
Acknowledgments: This work is partially supported by Shanghai key scientific research project No.11510502700, and science and technology innovation focus of SHMEC No.12ZZ189, and Science Foundation of SIT (YJ2011-33) and (YJ2011-22).
Journal of China Non-ferrous Metals.10 (2000) 282-286
Design of Self-turning PID Adjustment, Journal of Lanzhou University of Technology. 24 (1998)77-82

Township sewage artificial wetland depth treatment engineering design Jiafeng Xie1,a, Yunlong Yang 2,b and Jian Li3,c 1,2,3College of Environmental Science and Engineering，Taiyuan University of Technology，No.79，West Yingze Avenue，Wanbailin District，Taiyuan City，Shanxi Province，030024，China a517074680@qq.com，b29655524@qq.com，c435441871@qq.com Keywords: Sewage treatment plant tail water，Compound constructed wetland，Engineering design.
Filler laying thickness of 1.0~1.2m from bottom to top，followed by the gravel layer，the composite matrix layer (vermiculite，peat，gravel，three kinds of material according to a certain proportion of the mixture)，laying between the gravel layer and the composite matrix120g/m2 woven quality geotextile，the matrix layer grown on emergent plants (evergreen Typha，Canna and reeds，etc.)
Journal of Soil and Water Conservation, 2000, 53(3): 303 - 309
Artificial wetlands of urban polluted river water purification effect and mechanism [J], Journal of Lake Sciences, 2007, 19 (1): 32-38.

All the experimental equipments are thermally insulated with a 25 mm thick insulation material after leakage checking.
Acknowledgements This work was supported financially by the National Natural Science Foundation of China (No.51106092).
Eng. 31 (2011) 4007-4013 [6] Ran Chunyu, LI Yang, WANG Chunqing, On heating with heat pump technology using circulating water of power plants as heat source, Chinese Journal of Changchun Normal University(Natural Science)28. (2009)27-29
Practicability of district heating using heat pumps with circulating water of power plant as heat source, Chinese Journal of HV&AC. 35 (2005)104-107

Brake disc material is copper.
Acknowledgements This research was financially supported by the National Science Foundation of China (Grant NO.51275212).
Changan University, 2006(In Chinese) [6] Ren He, Cunxiang Liu: Journal of Nanjing university of science and technology.
Vol. 35 (2011) , p.590-594 [7] Changju Chen, Jialiang Liu, Xiaojun Liu: Journal of wuhan university of technology.

Synthesis of biodiesel from castor oil catalyzed by cesium phosphotungstate with the assistance of microwave Hong Yuan1, a, Qing Shu2,b 1 School of Chemistry and Chemical Engineering, Beifang University of Nationalities, Yinchuan 750021, Ningxia hui autonomous region, China 2 School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China a yuan.hong2012@yahoo.cn, b shuqing@tsinghua.org.cn Keywords: Biodiesel; Cesium phosphotungstate; Microwave radiation; Castor oil Abstract.
A wide variety of vegetable oils (e.g., soybean oil and rapeseed oil) can be employed as the raw material for the production of biodiesel.
Acknowledgements Financial support for this work from the National Natural Science Foundation of China (21266001/B060905), the State Ethnic Affairs Commission Key Laboratory of Chemical Technology foundation of Beifang University of Nationalities (2010SY15) and independent scientific research fund project of Beifang University of Nationalities（2011ZQY033）are gratefully acknowledged.
Journal of Power Sources Vol. 157 (2006) , p. 35-44
Journal of Catalysis Vol. 248 (2007) , p. 226-234

Therefore, an important and unresolved part of the problem of improving compression foam generating units is the development of a mathematical apparatus describing their operation. 3 Presentation of Basic Material It is known that there are two hypotheses for the propagation of sound in the air: isothermal and adiabatic, and that, as a result of numerous experiments with the speed of sound in a gas environment, it is proved that it is an adiabatic process and that the speed of processes during the propagation of an acoustic wave causes the heat to not reach to neighboring gas parts [17].
[3] Wiebke Drenckman-Andreatta Acoustic characterization of liquid foams with an impedance tube, The European Physical Journal E. 2013
Seonwoong Class B Fire-Extinguishing Performance Evaluation of a Compressed Air Foam System at Differen Air-to-Aqueous Foam Solution Mixing Ratios, Applied Science. 6/191 (2016) 2–12
Lin Experimental study on fire extinguishing with a newly prepared multi-component compressed air foam, Chinese Science Bulletin. 54/3 (2009) 492–496
Yagudina The usage of high speed impulse liquid jets for putting out gas blowouts, Journal of Theoretical and Applied Mechanics, 3 (2014) 655–664

Introduction Cellulose-based superabsorbent materials, as one of three categories of natural superabsorbent materials (starch, cellulose and synthetic polymers), are developing rapidly.
So how to prepare inexpensive but high quality of superabsorbent materials with abundant celluloses, is a very important research topic, which has been the big part of the superabsorbent materials[3].
Although there are lots of new technologies and new materials, traditional cotton gauze still is the main materials of wound care.
Liu: Journal of South China Technology University Vol. 2(2000), p. 46 [5] Y.M.
Cui: Henan Science Vol. 2(2000), p. 164 [7] Z.X.

A solar drying system designed on the principles of convective heat flow, constructed from local materials was employed in drying yam (Dioscorea Alata).
The solar air heater was constructed using a single layer of 4 mm thick glass(of transmittance of about 0.63) for wave lengths in the range 0.2- 2.0 Um and opaque to wave length greater than 4.5Um) as glazing material.
Simulation of available solar energy in Bangladesh and computer simulation and optional design of indirect rational conventional solar drying system research report of the European Commission Postgraduate Fellowship Department of Agricultural and Environmental Science, University of Newcastle upon Tyre, NUITRU, UK (1994)
Appraisal study of drying rates of pepper, tomato and okro: Nigerian Journal of Solar Energy Volume 8 (1989), p. 165.