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In this paper, a standalone PV-powered water pumping system is designed for Bahir Dar University Health Science College.
The performance of the proposed controller is tested under various dynamic environmental conditions for the case of a standalone solar powered water pumping system at Bahir Dar University Health Science College.
Cite Data In this paper, a standalone PV water pumping system is designed for Bahir Dar University Health Science College located 4.5km southwest of Bahir Dar town, Ethiopia.
Electrical characteristic of selected module “Sharp ND-240QCJ”[37] Electrical characteristics Value/Material used Unit Maximum power (Pmax) 240 [W] Tolerance of Pmax +5%-0% - RTC rating 216.4 [W] Type of cell Polycrystalline silicon - Cell configuration 60 in series - Open Circuit Voltage (Voc) 37.5 [V] Maximum power voltage (Vpm) 29.3 [V] Short circuit current (Isc) 8.75 [A] Maximum power current (Ipm) 8.19 [A] Module efficiency 14.7 [%] Maximum system (DC) voltage 600V(UL)/1000V(IEC) [V] Series fuse rating 15 [A] NOCT 47.5 [OC] Temperature coefficient (Pmax) -0.485 [%/ OC] Temperature coefficient (Voc) -0.36 [%/ OC] Temperature coefficient (Isc) 0.053 [%/ OC] 2.4.
Ibrahim et al., PV maximum power-point tracking using modified particle swarm optimization under partial shading conditions, in Chinese Journal of Electrical Engineering, 6()106-121

Figure 3 The application of chitin and chitosan in multiple fields 4 Conclusion Nowadays, there is still some serious environmental pollution in the preparation of chitin from marine waste materials by using strong acids and bases to remove calcium carbonate (DP) and proteins (DM), respectively.
Acknowledgements This work was supported by the National Natural Science Foundation of China (No. 51173104), the Nanometer Technology Program of Science and Technology Committee of Shanghai, China (No. 11nm0503500)
Yen, Bioconversion of chitin-containing wastes for the production of enzymes and bioactive materials, Carbohydr.
Bioconversion of chitin-containing wastes for the production of enzymes and bioactive materials, Carbohydr.
Fragrance Journal, 15(1996) 61-68

Processing and Manufacturing of Composite Materials’.
Journal of Materials Processing Technology.
Journal of Materials Processing Technology.
Journal of Thermoplastic Composite Materials.
Machining and Machinability of Materials.

Effect of Physical Simulation Thermal Parameters on Microstructure Transition and Property Variation of boron steel Kun Han1,a, Qingshan Li2,b, Mei Zhang3,c, Renyu Fu, Lin Li 1 School of Materials Science and Engineering, Shanghai University, 149 Yanchang Road, Shanghai 200072, China ahkshj_2005@sina.com, bliqingshan999@163.com, czhangmei3721@shu.edu.cn Keywords: 22MnB5, Welding simulation, Thermal parameters, Microstructure transition, Mechanical properties, impact toughness Abstract: Different physical simulation welding parameters were performed using Gleeble-3500 type thermal simulator to research the effect of thermal cycle on microstructure transition and property variation of boron steel 22MnB5.
Experimental Materials The experimental material is hot-rolled low-carbon boron steel 22MnB5.
The microstructure of base material (BM) is fine martensitic microstructure as shown in figure 1.
Discussion The weld joint performance of materials plays a vital role that determines whether it can be widely used.
[5] M.Zhang, R.Y.Fu, D.Krizan, B.C.De Cooman, L.Li, Materials Science & Engineering A, 2006, Vol. 438-440, P.296-299 [6] Mei Zhang, Lin Li, Ren-yu Fu, Ji-cheng Zhang, Zi Wan, Journal of Iron and Steel Research International, 2008 15 (5), p. 61-65, 87 [7] Mei Zhang, Ren-yu Fu, Dong-dong Cao, Zi Wan, Mei-hua Wu, D.

The sixth international conference on cement and concrete and CANMET/ACI concrete technology conference on sustainable development undertaken by Chinese society of silicate, Canadian mineral energy technology center,American concrete institute and Chinese building materials science research institute was held in xi 'an from September 19 to 22, 2006.
Throughout the development process of human civilization construction, concrete material has been put into the production and use as early as the beginning of 19th century.It has become the most widely used building material in the construction industry.
Concrete is mainly composed of coarse aggregate (stone) and the fine aggregate (sand), the two materials account for 75% in total concrete.
III.The application of recycled concrete in road engineering In the field of the road engineering, concrete is the most abundant material in its dosage, and is also one of the most widely used building materials.
The comprehensive application of construction waste [J]．Journal of shandong agricultural university（Natural science edition），2006，37（1）,p.109-112

The reference permanent mould cast material is VAC43100.
Ajersch, D Bouchard, High cycle fatigue strength of permanent mold and rheocast aluminum alloy 357, International Journal of Fatigue 32 (2010) 1233–1242
Damm, Semisolid Processes, Comprehensive Materials Processing, Volume 5, First Edition, 2014, 109–134
Gourlay, A.K Dahle, Migration of Crystals During the Filling of Semi-solid Castings, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science Volume 36, Issue 13, 2005, Pages 805-818
Laukli, A.K Dahle, Segregation Band Formation in Al-Si Die Castings, Metallurgical and Materials Transaction A: V35A, Sep 2004, pp 2881-2891.

Phase Composition and Crystal Structure Study Xiang Wei1,a , Mufit Akinc 2,b 1 Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011, U.S.A 2 Department of Materials Science and Engineering, Iowa State University, Ames, IA 50011, U.S.A a xiangwei@iastate.edu, b makinc@iastate.edu Keywords: Bioceramics; Resorbable; Tricalcium phosphate; Silicon; Zinc; Crystal structure Abstract.
Both of these materials are more soluble and resorbable than stoichiometric HAp and therefore may be incorporated into bone more readily by osteocytes.
Moreover, the osteoconduction and osteosubstitution can be increased by controlling the biodegradation of the materials.
Materials and Method The commercial reagent grade CaCO3 (Fisher, USA), NH4H2PO4 (Fisher, USA), ZnO (Fisher, USA) and fumed SiO2 (Aldrich, USA) were used as received.
Gutt, Journal of the chemical society (1959), p. 1077-1083 [6] D.

Dissolution of carbide isolates in acids using microwave technique Andrzej Wyciślik 1,a, Janusz Richter 1,b 1The Silesian University of Technology, Faculty of Materials Science and Metallurgy, 40-019 Katowice, Krasinskiego 8, Poland a andrzej.wycislik@polsl.pl, b janusz.richter@polsl.pl Keywords: carbide isolates, dissolution in acids, microwave technique.
An important role from the point of view of structure and properties of materials is played by carbide phases [1-4].
Material for examination Materials for tests were isolates of carbide phases which were achieved from SM5Ti3Nb2 steel, the chemical composition of which is presented in Table 1.
Guy, Introduction in Materials Science, Ed.
Cwajna, Characterization of carbide phase in nonledeburic high-speed steel containing Ti and Nb, Journal of Materials Processing Technology 53 (1995) 341-348

Experimental Materials.
Steam explosion of the PALF raw material was carried out in a 2L batch reactor.
Acknowledgement The authors would like to thank Coordinating Center for Thai Government Science and Technology Scholarship Students (CSTS) and National Science and Technology Development Agency (NSTDA) for a financial support under a new researcher scholarship of CSTS, MOST (SCH-NR2012-204).
Materials & Design. 2014;63
Journal of Cleaner Production. 2014;83:454-462

With such volume of excavated and transported materials the conveyor belts (hereinafter referred to as CB) are damaged due to the impact of various negative factors.
Here we propose to install belt drifting sensors along the CB, as well as sensors of material clogging and a sensor of rotations.
· The second component would be represented by the sensor-based measuring systems for the measurements of physical parameters of the transported materials focused on the quality of material processing.
Lukáč, Transport logistic and its use in the design of an integrated transport system of raw materials, Transport & logistics 9 (2011) 522-530
Pavlisková, Analysis of regression model of functional dependency in impact force from height and weight of ram for conveyor belt, International journal of engineering 8(3) (2010) 267-270