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Development of self-aligned process to decrease gate length in recessed SiC SIT Gang Chen1, 2, a, Song Bai1, 2, Lin Wang2, Yonghong Tao2, Haiqi Liu2 1 Science and Technology on Monolithic Integrated Circuits and Modules Laboratory, Nanjing, China 2 Nanjing Electronic Devices Institute, Nanjing, China a E-mail: steelchg@163.com Keywords: SiC SIT, RF, recess, self-aligned.
The effect of forming the side wall protection between the source mesa and the gate area was simulated Introduction Silicon carbide (SiC) is expected to be widely used as a material for semiconductors for next generation power devices because of its excellent characteristics such as wide band-gap, high electric breakdown field, and high thermal conductivity[1].
We obtained an excellent self-aligned ion implantation condition for decreasing gate length and therefore the L band 4cm SiC SIT devices pulse output power improved about 50% than before. [6] Acknowledgements We would like to thank all the members of Science and Technology on Monolithic Integrated Circuits and Modules Laboratory.
References [1] SiC High Power Transistors for Next Generation VHF/UHF Radar, Microwave Journal Vol. 52 | No. 1 | January 2009 | Page 108 [2] SiC High Power Transistors for Next Generation VHF/UHF Radar, Microwave Journal Vol. 52, No. 1, January 2009, Page 108
Applied Mechanics and Materials Vols. 130-134 (2012) pp. 3392-3395

As we all know, HSM processing optimization involves materials, mechanics, mechanical manufacturing technology and computer graphics and so on, and appears non-linear characteristics.
The , corresponding network parameters is selected from the database according to the material and optimization objective.
The International Journal of Advanced manufacturing Technology.
International Journal of Advanced manufacturing Technology.
International of Journal Advanced manufacturing Technology.

Materials and methods 1.1 Materials of the test Litsea cubeba fruit: Place of origin was Anhui Province, China; Absolute Alcohol: Tianjin Fu Yu Fine Chemical Co., Ltd.; 1.2 Experimental apparatus Swing High-speed Universal Pulverizer: Wenling Grand Forestry Machinery Co., Ltd.; AY120 Electronic Analytical Balance: Shimadzu Corporation; KH-400KDB High Power CNC Ultrasonic Cleaner: Kunshan Hechuang Ultrasonic Instrument Co.; SHZ-D (Ⅲ) Circulating Water Pumps: Gongyi Instrument Co., Ltd.; RE-52AA Rotary Evaporator: Shanghai Yarong Biochemical Instrument Factory. 1.3 Experimental Methods 1.3.1 The method of ultrasonic-assisted extraction of Litsea cubeba oil.
The effect of ultrasonic action depended not only on the ultrasonic power, but on the structure and property of the material .
Study on Chemical Constituents and Pharmacology of Lisea Cubeba[J].Strait Pharmaceutical Journal, 2013, 25 ( 1 ) :45- 46
Journal of Xuzhou Institute of Technology(Natural Sciences Edition), 2012,27 ( 2 ) :16- 20
Journal of the Chinese Cereals and Oils Association, 2012,27 ( 12 ) :47- 53.

Materials and Methods Reagents and instruments.
According to the results of composition of blocking foreign bodies, the blocking materials in SD6-1 well are mainly acid-insoluble strontium sulfate (barium) scale, and most of them are BaSO4 scale.
AICHE Journal, 58(2012)1222-1229
Journal of petroleum science and engineering, 171(2018) 127–139 [14] Abass A.
Journal of petroleum science and engineering, 135(2015) 723-737

From its constituent materials, a PCB contains 40 % metal, 30% organic, and 30% ceramic materials [1].
This is due to the release of volatile materials, such as hydrocarbons and CO (g) that can reduce hematite at low temperatures, such as shown in reaction (2).
Procedia - Social and Behavioral Sciences, 57, 331–338
Journal of Sustainable Metallurgy, 1(1), 75–84
Materials Today: Proceedings, 13, 127–131

On the other hand the superior strength and stiffness properties of composite materials are often compromised by the environmental conditions, they are exposed to.
Colombi,: Advanced FRP Materials for Civil structures, Bologna, Italy, 2000, pp. 33-42
Environmental Effects on Composite Materials, Vol. 2, Thechnomic Publishing Co.
Ayatollahi and M.R.M Aliha: Material science and Engineering: A, Vol. 417 (2006), 348-356
Verchery : in Proceeding of 11 th conference of the French Society for Composite materials.

By electroforming, the workpiece material is accreted at atomic size and there are no heat affected zones, cutting force and tool wear.
Acknowledgments The project was supported by the Special Project on Science and Technology of Fujian Province (2008H0028), the Project on Science and Technology of Xiamen, Fujian of China (3502Z20083037) and Scientific Research Foundation of Huaqiao University (09BS625).
Journal of Applied Electrochemistry, 1993, 23(3): 231-240
Journal of Alloys and Compounds, 2008, 466(1-2): 19-22
Tsinghua Science and Technology, 2009, 14(S1):144-148

Study on Destroying Enzyme in Chestnuts(Castanea Mollissima Blume)by Microwave Heating Chaonan Wang1a, Xinxin Yi1b*，Jinghua Qi1c，Fang Wang1d，Meixia Pang1e 1Faculty of Food Science and Engineering ,Beijing University of Agriculture，Beijing Key Laboratory of Agricultural Product Detection and Control of Spoilage Organisms and Pesticide Residue，Beijing Laboratory of Food Quality and Safety, Beijing 102206, China aemail: wangchaonan1501@163.com bemail: yixinxin2008@163.com cemail : abc960718@sina.com *Corresponding author : Xinxin Yi, Beijing University of Agriculture, N7, Road of Beinong,Changping,District,Beijing,102206,China, Tel: 13683615931 Keywords： Chineses Chestnut, Non-Enzymatic Browning, polyphenoloxidase, peroxidase Abstract.
Materials and methods Chemicals and Samples.Ethyl acetate,disodium hydrogen phosphate,sodium dihydrogen phosphate,guaiacol, catechol, hydrogen peroxide, sodium bisulfite, concentrated hydrochloric acid and 2-thio barbituric acid were supplied by Beijing chemical factory , which of them are analytically grade .The fresh chestnuts of were collected from Huairou district in Beijing.
[3] Mowlah G.Takono K.Kamoi I.Browning phenomenon by banana polyphenol oxidases[J].J.Japanese Society of Food Science and Technology.1983.30(4) ,P.245-251
Journal of Shanghai Jiaotong University (Agricultural Science ),2001(19) ,P.174-178
Journal of Agricultural and Food Chemistry 2008, 56 (12) ,P.4545-4554

Crop Decision Tree Classification Extraction Based on MODIS NDVI in Beijing Shiwei Dong1,2,a, Danfeng Sun2,b and Hong Li1,c 1Institute of Agricultural Integrated Development, Beijing Academy of Agriculture and Forest Science, 100097, China 2College of Resources and Environmental Sciences, China Agricultural University, Beijing, 100193, China aemail:dshiwei2006@163.com, bemail: lihsdf@cau.edu.cn, cemail: lihsdf@sina.com Keywords: MODIS NDVI; Decision Tree Classification; Crop Extraction; Crop Pattern Abstract.
Materials and Methods The research adopted MODIS data in 2007 year from NASA MODIS data product distribution website, and the resolution was 250 meters.
Acknowledgements This work was financially supported by the Beijing Science and Technology Programs.
Luke: International Journal of Remote Sensing Vol. 21 (2000), p. 1757-1762
Zhang, et al: ISPRS Journal of Photogrammetry and Remote Sensing Vol. 63 (2008), p. 476-484.

At present, a variety of super hard nano coating materials, such as SiC, TiC, TiCN, B4C and so on, with perfect performance are applying widely in engineering.
Coating materials is TiN.
Numerical simulation of rolling contact stress field with superhard coating materials [J].
Numerical analysis of rolling Contact stress field with superhard coating materials [D].
Mechanical science and engineering, 1994, 1l: 79~8 [12] Zhu Kequn.