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The aerospace industry led the application and use of composite materials in spacecrafts components.
Tool selection is limited to a small group of extremely hard and expensive materials.
When pressures of some GPa are applied, nano-materials can be manufactured.
Sorti: AIChE Journal Vol. 45 No. 7 (2009)
Jamaludin: 1st International Conference on Sustainable Materials (ICoSM2007) (2007)

Introduction Whenever two materials are joined an interface is created.
Junction can be treated as a sandwich material which can modulate the transport properties of individual materials.
The easiest set up for low melting materials is the resistive heating method.
An interface is defined as the region exhibiting properties differing from the joined materials.
Sen and Suchitra Sen, Journal of Materials Research 7, 1377, 1992

However, as Tie Ning, President of the Chinese Writers Association, pointed that, although the importance of network reading can not be underestimated nowadays in the lives of people, we feel that "codes reading", instead of "material reading", loses the depth of times and the steadiness of history.
As people become more and more used to science and technology, such surveillance will become increasingly pervasive.
We can not keep watch around the stars’ houses all day, many kingron were provided by the agencies.”[19] In summary, with the rapid development of science and technology and the arrival of the era of globalization, more and more popular cultural content has been reflected in the form of visual culture.
[8] Wang Yuechuang: Internet Culture’s Value, Jiangsu social science Vol1(China, 2005), p192
[11] Tang Shaojie: From Cultural Memory To Culture Remembered, Hebei Academic Journal, Vol.2(China 2007), p42

Journal of Natural Resources.
Science in China.
Resources Science.
Advance in earth sciences.Vol.17, 2 (2002) p. 201-208 [In Chinese] [16] B.Zhang, L.J.
Resource Science.

Increasing the rate of chemical processes in the case of bulk materials can be very slow.
Gvozdeva, Sunscreens, Raw materials and Packaging, 3 (2002) 8-10
Gladkov, New sunprotection materials, Raw materials and Packaging, 1 (2005) 57-60
Sviridova, Sun protective materials.
Li, Toxic potential of materials at the nanolevel, Science, 311 (2006) 622-627

Comprehensive Evaluation on Sensitivity of Ecological Environment in Chengde Chun Li1,a, Jinping Qian2, b College of Resource and Environment Sciences, Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Normal University, Shijiazhuang 050024, China chunlizhpdp@126.com Keywords: ecological environment, sensitivity comprehensive evaluation, Chengde Abstract.
According to the materials of soil types in Chengde, the classification result of soil texture factor’s influence on soil erosion sensitivity has been worked out with the use of ArcGIS.
Vegetation coverage The ground vegetation influence on the land desertification is the important factors,The higher the vegetation coverage are not easy to prosperous soil desertification.According to the present situation of the ecological environment in the investigation of remote sensing image material in Chengde,We divided Chengde city into non-sensitive area , slightly sensitive area, medium sensitive area, highly sensitive area and extremely sensitive area.Non-sensitive area includes most parts of Chengde City,which the vegetation coverage is high, not easy to cause land desertification;slightly sensitive area includes Fengning County, plateaux in dam of Weichang County, the east of Luanping County and the south of Xinglong,which the vegetation coverage is moderate area;medium sensitive area includes Fengning County Yuer Mountain, Sichakou, Grassland, Weichang County YudaoMouth, Xilongtou and Nanshanju and so on, which areas vegetation coverage is less ;highly sensitive area includes
The number of the days winter monsoon wind speed is greater than the sand wind speed Wind speed only in more than a critical value until circumstances may blow and handling of soil particle material to the air,Therefore,Wind speed is the effect of soil particles of handling important factors.According to the research,sand wind speed wind of soil mass is 6 m/s, So choose the data of the number of days spring wind speed more than 6m/s in Chengde,and the standards in 《Ecological function division interim rules》,Chengde city will be divided into general area, slightly sensitive, medium sensitive area, highly sensitive area and extremely sensitive area.General area includes Yuerya Town , Nianzi Town, Dongdadi, Huanjian, Mubeiloutai, Mengziling, Dushigouzi, Tashan, Huapiliuzi and Kuancheng Country of Kuancheng Country ;Xiabancheng south and Bajia of Chengde Country;Bgualing Town, Gushanzi Town, Gualanyu Town, Banbishan Town, Lanqiying Town, Moguyu Town, Dazhangzi Town and Anziling Town of
(Air, water, and soil pollution. 1999) [3] Ouyangzhihua, Wangxiaoke and Miaohong:The research of the ecological environmental sensitivity of China and the method of the regional differences.( Acta Ecologica Sinica.2000) [4] Xiguangcai, Kangmuyi and Zhaocongju: The ecological sensitivity evaluation research of Fukang city(Journal of Beijing Normal University (Natural Science ).2007)

China Land Science.
China Land Science, Vol.23, No.5 (2009):P.76-80.
China Land Science, Vol.19, No.2 (2005):P.3-8.
Chinese Journal of Soil Science, Vol.42, No.4 (2011):P.795-800.
China Land Science, Vol.18, No.2 (2004):P.21-28.

Padiyar, Analysis of Subsynchronous Resonance in Power Systems, Vol. 471, Springer Science & Business Media, (1999) [3] DH Baker, G.E.
Gao, Research on SSO caused by HVDC based on eigenvalue analysis, In Advanced Materials Research, Trans Tech Publications Ltd, 2012, Vol. 383, pp. 4792-4798 [7] H.
Tang, and YN Li, Research of Sub-synchronous Oscillations in HVDC and SSDC Designing, in Advanced Materials Research, Trans Tech Publications Ltd, 2014, Vol. 960, pp. 1062-1067 [8] T.
Yingyin, Design and Implementation of Subsynchronous Damping Controller for HVDC, In Journal of Physics, Conference Series, IOP Publishing, 2020, April, Vol. 1486, No. 6, p. 062033, [15] D.J.
Jiang, Design of HVDC Supplementary Subsynchronous Damping Controller, Advanced Materials Research, 2014, Trans Tech Publ, Vol. 960, pp. 1017-1021

Al-Ayedc, Naceur Hamdi*a,c Cédric Fischmeisterb, Christian Bruneaub aUniversity of Carthage, Higher Institute of Sciences and Technology of Environment of Borj Cedria, B.P. 1003, 2050, Hammam-Lif, Tunisia. * E-mail: naceur.hamdi@isste.rnu.tn bUMR6226: CNRS-Université de Rennes1, Institut des Sciences Chimiques, Organometallics: Materials and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 35042 Rennes Cedex, France.
Shafiee, Antinociceptive properties of new coumarin derivatives bearing substituted 3, 4-dihydro-2H-benzothiazines, Journal of Pharmaceutical Sciences 22 (2014) 9-17
Mckeown, Phthalocyanine Materials, Cambridge: Cambridge University Press, 1998
Science. 287 ( 2000) 1503-1506
Schäfer, Oils and Fats as Renewable Raw Materials in Chemistry, Angew.

The obtained results showed that power loss in polymer bearings is at least six times less than in conventional white metal ones indicating that polymer journal bearings are more energy efficient and environmentally friendly [15].
Materials and Method An in-situ study is carried out on board of several ships of different types; i.e. container ships, general cargo ships, and bulk carrier ships.
In 1988, Pearl presented the most important application of Bayes formula, called “Bayesian Networks” (BN) and which has a wide application in several fields of science, such as medicine, systems security analysis, image treatment and decision-making [32].
Vulic, ‘Environmental Friendly Ship Propulsion System: Case of Aft Stern Tube Bearing’, in 2012 International Conference on Offshore and Marine Technology: Science and Innovation, Rio Grande, Brazil, 2012, pp. 13–16
J. of Engineering Science and Technology Review 10 (4) (2017), pp. 185- 190