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A Proposed Control Technique for Water Management in Proton Exchange Membrane Fuel Cells Alin Cristian FĂRCAŞ1, a 1Universitatea Tehnică Cluj-Napoca, Automation and Computer Science Faculty, Automation dept., str.
In the last 3 decades, such devices using novel materials like proton exchange membranes (PEM) have developed significantly and several commercial versions exist in operation.
Bordons, "Development and experimental validation of a PEM fuel cell dynamic model," Journal of Power Sources, no. 173, p. 310–324, 2007
Gottesfeld, "Polymer Electrolyte Fuel Cell Model," Journal of Electrochemical Society, vol. 138, no. 8, pp. 2334-2342, 1991
Barbir, "Main Cell Components, Materials Properties and Processes," in PEM Fuel Cells: Theory and Practice, London, Elsevier Academic Press, Elsevier Inc., 2005, pp. 73-113. [8] T.

Materials and methods Study site This study area was located in Tumenling Railway Forest Farm (44°06′N, 126°02′E), Jiutai District, Changchun City, Jilin Province, China.
Jilin Forestry Science and Technology, (4): 1~11 (in Chinese with English abstract)
In: Proceedings of science and technology of forest management.
Forestry Science and Technology. (2): 9~13(in Chinese with English abstract)
Soil Science, 125(2): 95~101].

The IPC of this kind are of interest of not only water-soluble polymers physical chemistry, but also to related fields of science.
Interest in using these materials for biomedical purposes has already been established, particularly in drug delivery systems [10-12].
References [1] Takeo Ikawa, Koji Abe, Kenji Honda, Eishun Tsuchida, Interpolymer complex between poly(ethylene oxide) and poly(carboxylic acid), Journal of Polymer Science: Polymer Chemistry Edition, Vol. 13 (1975), Issue 7, p. 1505–1514 [2] Yunbo Li, Haixia Li, Xudong Chen, Fangming Zhu, Jin Yang, Yubin Zhu, Complexation of poly(acrylic acid) and poly(ethylene oxide) investigated by enhanced Rayleigh scattering method, Journal of Polymer Science Part B: Polymer Physics, Vol. 48 (2010), Issue 16, p. 1847–1852 [3] Vitaliy V Khutoryanskiy; Georgios Staikos Hydrogen-bonded interpolymer complexes: formation, structure and applications, Singapore ; Hackensack, NJ : World Scientific, (2009), p. 366 [4] Robert Langer, Nicholas A.
Peppas, Advances in biomaterials, drug delivery, and bionanotechnology, AIChE Journal, Volume 49 (2003), Issue 12, p. 2990–3006 [5] Petrak K.
Review: Polyelectrolyte Complexes in Biomedical Applications, Journal of Bioactive and Compatible Polymers, vol. 1 no. 2, (1986), p. 202-219 [6] Buddy D.

Results and discussion In this study, meteorological data are multiple-years weather materials that gathered from more than 70 meteorological stations locating in Lanzhou city.
Procedia Environmental Sciences 2 (2010) 906-913
Journal of desert research 23 (2003) 6-11.
Journal of desert research 26 (2006) 517-521.
Journal of desert research 26 (2006) 522-526.

The experimental results revealed that the bed materials were in good fluidizaton state at all of the experimental conditions.
Sun: Journal of Beijing University of Chemical Technology.
Vol. 189 (2009), p. 497. ], but each feeder can generally deal with specific types of materials.
Schematic diagram of the experimental apparatus Physical Properties of Experimental Materials.
It should be attributed to that the properties of entrained materials varied with temperature.

In general, the properties of powder metallurgical materials depend on the density and the microstructure.
Boyer:Materials Science and Engineering A: Vol. 213(1996)p.103-114
Jones:Advanced Materials & Processes, Vol. 51(1999)p.40-41
Srinivasan, S.L.Gopy, S.Ashok, et al: Advances in Powder Metallurgy and Particulate Materials, Vol.1 (1997) p.335-342
[14]T.Lin, S.J.Guo, M.Y.Li, et al: Journal of University of Science and Technology Beijing, Vol. 22(2000)p.131-133 in Chinese

Noise Control Method from Mechanical Theory With the developing of the material technology, many kinds of new material emerge as the times require.
Only do we using all the means of science and technology and actively develop new technology to decrease noise and continuing to promote the lower noise of vehicle.
Acknowledgement This work is supported by the Natural Science Foundation of Guangdong Province (Grant No.
Journal of sound and vibration, 80(3), 247-266(1982)
Journal of sound and vibration. 1999, 223(1):97-213.

ACI Materials Journal (1997), pp 49-57
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Materials and structures, Vol. 36 (2003), pp 365-371 [7] H.
International Symposium on Advances in Construction Materials, Springer (2007), pp 723-731
Alterman: Evaluation of concrete materials by automatic reasoning.

Introduction Aluminum and its alloys are among the most demanded materials in various fields of industry and are often used under conditions where the surface of metals requires additional protection [1].
Acknowledgements This work was supported by the Grant of Russian Science Foundation (project №14-33-00009).
Pietrzyk, Growth Characteristics of the Oxide Layer on Aluminium in the Process of Plasma Electrolytic Oxidation, Archives of Metallurgy and Materials 59 (2014) 407–411
Liping, Characterization of Micro-arc Oxidation of ZL109 Cast Al-Si Alloy, Machinery, Materials Science and Energy Engineering (ICMMSEE 2015), WORLD SCIENTIFIC, Wuhan, Hubei Province of China, 2015, pp 417–427
Yang, Investigation of morphology and composition of plasma electrolytic oxidation coatings in systems of Na2SiO3–NaOH and (NaPO3)6–NaOH, Journal of Materials Processing Technology 182 (2007) 28–33

Journal of ceramics, 2008, 29 (4):324-328(in Chinese)
Journal of the chinese ceramic society, 2000,28(2):105-110(in Chinese)
[9] T.X.Yu, G.X.Lu, Energy Absorption of Structures and Materials, Chemical Industry Press,Beijing,2005(in Chinese)
Materials Science and Engineering A 513–514(2009)145–153
Materials Science and Engineering A 505 (2009)178–186.