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0D Zn-ZIF/2D Co-ZIF Derived 0D ZnO/2D Co3O4 Heterostructures for ppb-Level Acetone Detection Xiao Chang1,a, Ya Xiong1,b and Qingzhong Xue1,c* 1State Key Laboratory of Heavy Oil Processing, School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, Shandong, P.
Table 1 Acetone sensing properties of different sensing materials.
Materials T (°C) Concentration (ppm) Response Reference Co3O4 hollow nanospheres - 1000 8 [26] Co3O4 nanocubes 200 100 3 [27] Co3O4/ZnO 400 1000 20 [28] porous Co3O4 nanosheets 150 100 6 [29] Co3O4 Hollow nanocages 350 5 1.45 [13] 0D ZnO/2D Co3O4 250 5 4.7 This work 0D ZnO/2D Co3O4 250 100 16.8 This work Compared with pure 2D Co3O4, 0D ZnO/2D Co3O4 exhibits more excellent acetone sensing properties, which can be attributed to the formation of 0D ZnO/2D Co3O4 heterostructures.
Therefore, 0D Zn-ZIF/2D Co-ZIF derived 0D ZnO/2D Co3O4 heterostructures can be a promising acetone sensing material.
Zhang, Metal-organic frameworks-derived hierarchical Co3O4 structures as efficient sensing materials for acetone detection, ACS Appl.

Experimental Study of Laser Welding Process and Properties of 2205 Duplex Stainless Sheet Steels Shanshan Hua *, Bitao Yangb, Bodong Zengc, Dongrui Zhengd and Zili Yange College of Mechanical Engineering, Guangxi University, 530004 Nanning, PR China achloee_2000@163.com, bsngrdidt2010@126.com, c834077721@qq.com, d215574085@qq.com, e1942321150@qq.com Keywords: Laser welding, 2205 Duplex stainless steel, Mechanical behavior, Microscopic structure.
Introduction Laser welding is a kind of material connection technology.
It uses the focused laser beam with high-energy-density as the welding resource to heat the surface of the welding workpiece, the metal materials absorbing heat and raising the temperature to a degree to melt metal rapidly, during which molten pool forms, subsequently cools and solidifies to form welding joint [1].
Welding Experiments Test Materials.
Alloy elements of the material was shown in Table 1.

To prevent and control environmental problems, material and energy’s transfer must be achieved from the economic system to the environment reciprocally and compensatorily, maintained two-way flow of material and energy between the two systems, this is the environmental compensation.
After the material and energy of environment react with pollutants is consumpted excessively, human compensation must be used to restore.
Physical compensation Chemistry compensation Transformation of pollution removed enhance self-purification ability of Biochemistry Compe-nsation Workers Funds Materials Equipment Technology Labor force Biological compensation Figure 1 the basic inputs environmental compensation and compensation process diagram Restora-tion and expan- sion of Environ-mental capacity Biological compensation.
The actual conduct of the environment compensation How to compensate is the center of environmental compensation mechanism, that is a method and process of how to get funds for environmental compensation, how to use the money to buy labor and materials, how to remediate the environment, and restore environmental capacity by certain tools.
Environmental compensation project bidding market is a part of social engineering contracting market, also a part of governmental public works procurement market.

Effects of CuCl Source and Content on Direct Synthesis of Triethoxysilane from Silicon and Ethanol Zhang Lei; Li Ji; Yang Kai; Hu Chenfa; Ge Shibin; Yang Chunhui* School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People’s Republic of China E-mail: yangchh@hit.edu.cn Tel: 086-045186413707 Fax: 086-045186314858 Keywords: Direct Synthesis; Triethoxysilane; Effects of CuCl sources; Effect of CuCl concentration; Gas-solid Stirred Fluidized Bed Abstract: Effect of CuCl source and content on formation of triethoxysilane in the direct process is described and discussed.
The direct process is a key step in the synthesis of silicon-containing materials, such as silicone polymer and numerous organosilicon chemicals.
Experimental 2.1 Materials and methods Technical-grade silicon, Sitech (Anyang DX Silicon Industry Co., Ltd.), was used and its impurities were listed in Table 1.
Other materials were used in the reaction including ethanol (Sinopharm Chemical Reagent Co., Ltd, 99.8%) and two sources of CuCl ( one was prepared by wet process, as described in Ref [21], and the other was from Sinopharm Chemical Reagent Co., Ltd, 99 %).
The η-Cu3Si acted only as potential active material.

The preferred coating method for depositing such coatings is sputter PVD due to the very smooth surface of the coatings, the low coating defect density and the flexibility in the coating material selection.
The substrate used in the present work is the CTN01L type cemented tungsten carbide made by Ceratizit Luxembourg, which was developed specifically as a precision glass molding tool material.
Such a change in weight occurs when the material of the samples oxidizes, as oxygen from the atmosphere gets incorporated into the material.
Since hot glass tends to oxidize materials that come in contact creating strong bonds, good resistance to oxidation at high temperatures is important for prolonging tool lifetime.
Hwang: Design of Protective Coatings for Glass Lens Molding, in: Key Engineering Materials 364-366 (2008) p. 655-661 [6] C.

The Experiment Study of Water Jet Incremental Sheet Metal Forming Xiaomin Chenga, Lin Zhoub , Liang Wangc and Gen Zhoud Ningbo University of Technology, Ningbo, 315016, China achxm369@hotmail.com, bzhoulinnbut@yahoo.cn, c849074018@qq.com, d907833060@qq.com Key words: incremental forming, sheet metal forming, water jet, forming experiment Abstract.
N.Geren suggests improvement of a low-cost water jet machining using reverse engineering and redesign methodology [5].
In this experiment, sheet metals have the same material but different thickness, with other technological parameters uniform.
Acknowledgment This work is supported by the National Natural Science Foundation of China(NSFC)(51075217), Natural Science Foundation of Zhejiang Provincial(Y1100528), Ningbo Training Base Fund for Application-Oriented Professionals(Jd070410) and excellent engineer education and training scheme.
Improvement of a low-cost water jet machining intensifier using reverse engineering and redesign methodology.

Chitosan: Development of Nanoparticles, Other Physical Forms and Solubility with Acids Nimish Shah1,a, R.K.Mewada1,b, Tejal Mehta2,c 1Chemical Engineering Department, Institute of Technology, Nirma University, Ahmedabad-India 2Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad-India Email: animish.shah@nirmauni.ac.in, brkmewada@nirmauni.ac.in, ctejal.shah@nirmauni.ac.in [Submitted: August 23, 2012; revised: January 17, 2013; accepted: March 13, 2013 Key words: Chitosan, nanoparticles, chitosan derivatives, solubility in acid, shape of chitosan derivatives Abstract.
Various physical forms of chitosan and its blends together with other derivatives such as composites and graft copolymers have been developed to overcome limitations of different polymeric materials such as poor mechanical properties and to improve its functionality towards specific applications.
These biopolymers are having very specific and wide applications in biomedical, pharmaceutical, tissue engineering etc areas.
· Sponge of blended chitosan-fibroin that could be suitable for a future construction of dressing materials has been investigated by Strobin et al.
Materials and experimental methods: Acetic acid (AA) and Hydrochloric acid (HA) purchased from CDH and used as that were supplied.

Isaac2,b 1Mechanical Engineering Department, Ambrose Alli University, Ekpoma, Edo State, Nigeria. 2Mechanical Engineering Department, Delta State Polytechnic, Ogwashi-Uku, Delta State, Nigeria.
Materials and Method Data were obtained from Sapele thermal power station’s logbook.
Ebonhor: Nigeria’s Electric Power Sector Reforms: What Should Form the Key Objectives?
Odiase: Electric Energy Pricing in a Deregulated Economy: A Case Study of Delta Thermal Power Plant, Delta State, Nigeria, Journal of Engineering and Applied Sciences, Vol. 4, No. 2, (2009), pp. 145-151
Ekeh: Evaluation of the Technico-Economical Indices of Major Power Stations Operation in Nigeria, Journal of Engineering Science and Applications, Vol.3, No. 1, (2001), pp. 1-21.

Devaraj4, d 1*Department of Mechanical Engineering, Sri Ranganathar Institute of Engineering and Technology, Coimbatore, India 641 110 2Department of Mechanical Engineering, SVS College of Engineering, Coimbatore, India 641 032 3Department of Mechanical Engineering, Amrita VishwaVidyapeetham, India 560 035 4Department of Mechanical Engineering, Sri Ranganathar Institute of Engineering and Technology, Coimbatore, 641 110 a*sambalamurugan@gmail.com, bdr.nss.mechanical@gmail.com, cprakashkmuthu@gmail.com, ddevajayam@yahoo.com Keywords: Desalination, Solar still, flat plate collector, evacuated tube collector Abstract.
Malik et al [10] have used many design variations exist, and a wide variety of construction materials are used for fabrication of still and have showed its performance.
This work reveals that the basin water depth is key features for productivity in the solar still.

Seismic Analysis of Confined Masonry Shear Walls Using the Wide Column Model Kiran Rangwani1, a* and Svetlana Brzev2, b 1Graduate Student, Department of Civil Engineering, Indian Institute of Technology Gandhinagar, Palaj, GJ, 382355, India 2Visiting Professor, Department of Civil Engineering, Indian Institute of Technology Gandhinagar, Palaj, GJ, 382355, India akiran@iitgn.ac.in, bsbrzev@iitgn.ac.in Keywords: Confined Masonry, Wide Column Model, Equivalent Frame Model, Linear Elastic Analyses, Seismic analysis Abstract.
Introduction Masonry as a construction material has been accepted worldwide due to its simple construction practice, durability, and cost-effectiveness.
References [1] Brzev S. (2008), “Earthquake-Resistant Confined Masonry Construction”, NICEE, National Information Center of Earthquake Engineering, Indian Institute of Technology Kanpur [2] Meli R., Brzev S. et al (2011), “Seismic Design Guide for Low-Rise Confined Masonry Buildings”, Earthquake Engineering Research Institute (EERI), Oakland, California, USA [3] Jain S.
G. (2002), “ Evaluation of Simplified Models for Lateral Loads Analysis of Unreinforced Masonry Buildings”, Journal of Structural Engineering, ASCE, Vol. 128, No. 7, pp. 890-897 [9] Lagomarsino S., Penna A., Galasco A., and Cattari S. (2013), “TREMURI Program: An Equivalent Frame Model for the Nonlinear Seismic Analysis of Masonry Buildings”, Journal of Engineering Structures, Vol. 56, pp. 1787-1799 [10] Simões A., Bento R., Gago A., and Lopes M. (2012), “Seismic Vulnerability of Old Masonry ‘Gaioleiro’ Building in Lisbon”, Proceeding of 15thWorld Conference of Earthquake Engineering, Lisbon, Portugal [11] Taveras M.
A. (2008), “Revisión de las recomendaciones para modelar y analizar estructuras de mampostería confinada ante carga lateral”, Master's thesis, Graduate of Engineering, UNAM, Mexico [12] NTC-M (2004), “Technical Norms for Design and Construction of Masonry Structures”, Mexico D.F.