Search results

Stressand can be expressed: 　　　　　 (3) Among, is Modulus of elasticity of materials.
The maximum residual tensile stress occurred at about 1/8 the plate thickness from the center, the maximum compressive stress occurred at about 1/5 the thickness from the surface layer, which can be attributed to the solute distribution during solid solution treatment of the core material and the solute depletion of surface materials caused by enrichment [6].
Journal of Air Force Engineering University (Natural Science Edition), 2001, 2(5): 1-3
International Journal of Machine Tool & Manufacture, 2001, 41:443-450
Method of Measuring the Residual Stress Distribution in Pre-stretched Aluminum Alloy Plate 7075T7351 [J].Journal of Air Force Engineering University (Natural Science Edition), 2004, 5(3):19-21.

They display a wide range of applications in different fields, e.g. in cosmetics, agriculture, food, pharmacy, biomedical, paper industry and also as absorbent materials for wastewater treatment [6, 7, 8].
Material and methods Raw Materials: Shrimps were taken from the local fish market for this project.
Ruban, Isolation of Chitin From a Variety of Raw Materials,Modification of The Material, and Interaction Its Derivatives With Metal Ions, Chromatographia. 59 (2004) 783–786
Aiba, Chemistry Modified Chitin and Chitosan as Biomaterials, Progress in Polymer Science. 29 (2004) 887–908
Roy, Preparation of Chitosan From Shrimp Shell and Investigation of Its Proteries, International Journals of Basic & Applied Sciences. 11 (2011) 116-130

Materials and methods Plant materials and sampling.
Uniform fruit without visible defects were selected as the experimental materials.
We compared the effect of three types of fibers coated with different materials, and found that the extraction effect of fiber coated with PDMS/DVB was better than another two.
Journal of Agriculture and Food Chemistry Vol. 40 (1992), p.1925
Journal of Agriculture and Food Chemistry Vol. 54 (2006), p.8842

Abstract Recent developments in the composite materials with high performance increase its range of application most widely but the major disadvantage of these novel materials is machining.
But the machinability of these materials is very complicated owing to the harder reinforcements and in order to reduce this complexity an attempt was made to find the best process parameter to get better surface finish while milling.
The observations adjuncts to the well known technocrat that harder materials are always hard to machine.
Balazinski, Flank wear progression during machining metal matrix composites, Journal of Manufacturing Science and Engineering. 128 (2006) 787–791
Kishawy, Tribological aspects of machining aluminium metal matrix composites, Journal of Materials Processing Technology. 198 (2008) 399–406

Carol, No. 2, 130024 Targoviste, Romania 2Faculty of Materials Science and Engineering, University POLITEHNICA of Bucharest, 313 Splaiul Independentei, sector 6, 060042 Bucharest, Romania apinicoleta24@yahoo.com, b cristiana_enescu@yahoo.com, c vasilebratu.uvt_ro@yahoo.com, dralucaza@yahoo.com, eelenastoian22@gmail.com Keywords: aluminium alloys, heat treatment, corrosion, mechanical test.
Introduction In recent decades the scientists increasing efforts to develop light weight materials for transportation with low environmental impact.
These types of materials include aluminum alloys, titanium alloys or composite materials that ensure reduction of fuel consumption and implicit gas emissions into the atmosphere [1-5].
Rosso, Metallurgical Science and Technology (2011), pp.5-13
Actis Grande, M Rosso, Corrosion resistance of sintered duplex stainless steels in the salt fog spray test, Journal of Materials Processing Technology 192–193, (2007), pp.443–448

Introduction Recent advances have revealed that SrCO3 Powders offer many advantages as materials for use in big screen TVs, computer displays, Electronic components, Magnetic materials, etc[1][2].
In recent years, the synthesis of polymorphous high purity hyperfine powder materials is becoming the new way of Strontium field.
Recently, the ultrasonic cavitation effect has widely used in the synthesis of nano materials[4][5].
Huo, et al: New Chemical Materials Vol. 34(2006), p.5 [2] S.
Tang, et al: Chinese Journal Of Inorganic Chemistry Vol. 28(2012), p.185

Corrosion Behaviour of Mg-7.3Al Alloy in Buffered Chloride Solutions Suqiu Jia1, a,Wenke Gao2,b and Zhankui Zhao1,c 1 Key Laboratory of Advanced Structural Materials, Ministry of Education , Changchun University of Technology, Changchun, 130012, China 2Jilin Science and Technology Vocational College, Changchun, 130123, China ajiasuqiu@mail.ccut.edu.cn, bgaowenke@126.com, czkzhao@mail.ccut.edu.cn Keywords: Mg-7.3Al alloy; corrosion behaviour; buffer; chloride ions.
It was found that the corrosion rates of all materials except AZ91E depended solely on the pH of the test solution and the corrosion rates in the buffers were considered as giving the resistivity of the passive film to anodic reactions.However, corrosion behaviur of Mg-7.3Al alloy in buffers which contain chloride ions has rarely reported.
References [1] Guang-Ling Song ,ZhenQing Xu: ElectrochimicaActa Vol.55 (2010), p.4148 [2] Hassan H.Elsentriecy ,Kazuhisa Azumi,Hidetaka Konno: ElectrochimicaActa Vol. 53 (2007), p.1006 [3] I.A.Yakubtsov, B.J.Diak, C.A.Sager, B.Bhattacharya, W.D.MacDonald, M.Niewczas: Materials Science and Engineering A Vol.496 (2008), p.247 [4] Horng-Yu Wu, Chang-Chuan Hsu, Jen-Bin Won, Pin-Hou Sun, Jian-Yih Wang ,Shyong Lee, Chui-Hung Chiu ,ShanTorng : Journal of Materials Processing Technology Vo.209 (2009), p.4194 [5] Wei-JenLai Yi-YunLi, Yung-FuHsu, ShanTrong, Wen-HsiungWang: Journal of Alloys and Compounds Vol. 476 (2009),p.118 [6] J.F.
Vol.5 (2003), p.840 [9] Yair Tamar, Daniel Mandler: Electrochimica Acta Vol. 53 (2008), p.5118 [10] Guangling Song ,David StJohn: Corrosion Science Vol. 46 (2004), p.1381 [11] E.N.ElSawy, H.A.El-Sayed, H.A.ElShayeb: Journal of Alloys and Compounds Vol. 492 (2010), p.697 [12] H.
Yamamoto, H.Tsubakino: Corrosion Science Vol.44 (2002), p.603 [14] Guangling Song, Andrej Atrens, Matthew Dargusch : Corrosion Science Vol. 41(1999),p.253 [15] Martin Jönsson ,Dominique Thierry ,Nathalie LeBozec: Corrosion Science Vol. 48(2006), p.1193

It consists of two perforated trays to place the material to be dried.
Kavak Akpinar, Mathematical modelling and experimental investigation on sun and solar drying of white mulberry, Journal of Mechanical Science and Technology. 22 (2008) 544-1553
Zomorodian, Kinetics of apricot thin layer drying in a mixed and indirect mode solar dryer, International Journal of Agriculture Sciences. 4 (2012) 262-267
Chandrasekar, Performance of a forced convection solar drier integrated with gravel as heat storage material for chilli drying, Journal of Engineering Science and Technology. 4 (2009) 305-314
Taha, Mathematical models of grapes Solar drying, Journal of Applied Science Research. 8 (2012) 5708-5723

Based on materials mechanics, its deflection in its x is (1) Where, ，Eqs.(1) gets the maximum value and its maximum value is .
Based on materials mechanics, its deflection in its x is (2) Based on Eqs.(1) and Eqs.(2), the deformation ratio between surported and not surported by the top and is (3) Where, ，the value of Eqs.(3) is 0.15.
Acknowledgements This work was financially supported by the Natural Science Foundation of Henan Province (2011C460002).
Chinese Journal of Mechanical Engineering, Vol 41 No. 2, (2005), p. 137～141 (in Chinese) [3] Luo Pinger.
Journal of Changshu Institute of T echnology( N atural Sciences), Vol 21 No. 2, (2007), p. 67～71 (in Chinese) [4] Liu Peiyue, Yan Zhibo.

adaoxinwu@126.com, btonghaixia@126.com, cxiachangbin@yahoo.com.cn Key words: Vanadium doped, rutile titania, Photodegradation Abstract: Vanadium doped rutile titania was prepared by low temperature hydrolysis using Tetrabutyl titanate as raw material.
Acknowledgements This work were supported by Scientific Research Fund of Hunan Provincial Science and Technology Department of P.R.C (2010GK3168). and Natural Science Foundation of Hunan Province P.R.C (10JJ5050, 11JJ5010).
:Journal of Chemical Society:Faraday Transactions, 1997, 93(8): 1647 -1654
,Arakawa H.: Journal of Molecular Catalysis A: Chemical, 2000,161 (1-2):105-113
Yin:The Chinese Journal of Nonferrous Metals，2008，18（1）：171~176.