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Introduction The farmland is required for normal growth of crops and for material suppliers and regulators.
The key to the multi-factors evaluation relies on selection and impact of determining the weights as calculated: (1) Where standing for the total score of land consolidation site; indicating the weight of the indicators to determine the weights of evaluation indexes by way of pair-wise comparison method; indicating the standard value of the indicators. 1.2 Trial plot The trial plot is located at Wangyangxing Village, Zaoqiang county of Hengshui City.
According to the experimental material or similar engineering experience, drop head flow at different soil conditions and drop head spacing can consult to table 3 scopes.
The agricultural productivity is increasing while manpower and material resources save from the traditional farming methods.
Journal of Agricultural Engineering, 2003,19(1)67-71.

Numerical analysis of temperature field of Co-based alloy coatings by laser cladding on the mild steel Lin Ding1,a , Ming-xi Li2,b, Xiu-chuan Zhu3,c, Hong-yun Jiang4,d 1,3,4 Department of Mechnical Engineering, Anhui Vocational and Technical College of Defense Technology, Anhui Lu-an, 237011,People’s Republic of China 2 School of Materials Science and Engineering, Anhui University of Technology, Anhui Maanshan, 243002, People’s Republic of China adinglin8209@sohu.com, blimingxi@ahut.edu.cn, cxchzhu@163.com, djhuyu64@126.com Keywords: Laser cladding, Co-based alloy, SYSWELD, Simulation Abstract.
To simplify the problem, the following assumptions are adopted: (1) The material is isotropic
Process parameters of laser cladding are shown in Table 1, the cladding materials on laser heat absorption rate of 30%.
Table 1 Process parameter of laser cladding Power [W] Scanning Velocity [mm/s] Spot Size [mm] 2000 3,4,5 5 2.4 Thermal properties of Co-based alloy Co base alloy material thermo-physical parameter is reference to similar composition alloy, and according to influence of elements, Co base alloy material thermal physical properties versus temperature curve are obtained by fitting.
China Surface Engineering, 2004, (6): 10-14

Introduction The “digital natives” or the “n-gen” (n generation) are the new generations of learners brought up with the Internet and an unrestrained access to information; they absorb information simultaneously from multiple sources, through images, video or text and they prefer random and on-demand access to educational materials, as they are continuously connected to web tools, being in the same time providers and consumers of media material. [1; 2] Nowadays one can say that we aspire to a “learning culture”, rather than a “knowledge era”, in a time when people are continuously surrounded and absorbed by educational experiences [3].
Khan’s collaboration with students, instructors, administrators and technical staff from all over the world, all part of an academic or corporate eLearning environment, made him realise that the eLearning framework is made out of eight key dimensions: pedagogical, technological, interface design, evaluation, management, resources support, ethical and institutional.
They may be reluctant when it comes to learning new technologies, to revising their learning material as to adapt it to these technologies and to completely change the way they have been delivering knowledge so far.
Discussions and further perspective As it can be observed by performing a simple search for learning material on the web, the returned results are numerous and diverse.
Jesus, New e-learning objects for the Mathematics courses from Engineering degrees: Design and Implementation of Question Banks in Maple T.A. using LaTeX.

The Optimization of Pb(II),Cu(II),Zn(II) and Cd(II) Ions Removal by Micro-electrolysis Using Response Surface Methodology JianPing Xu1, a, Zhi Huang1,b, YanLing Gao1,c 1College of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu, Anhui, China 241000 axy1204@ahpu.edu.com, b429359615@qq.com, c765087686@qq.com Keywords: Response surface methodology (RSM); Micro-electrolysis (ME); Acid mine drainage; Heavy-metals Abstract.
The RSM has already been successfully applied in other fields, i.e. food processing, biochemical engineering and adsorption processes for optimization [13–17].
Materials and Methods Simulated Wastewater.
Acknowledgements This work was financially supported by the Natural Science Foundation of China（51274001）and Open project from State Key Laboratory of Coal Resources and Safe Mining (SKLCRSM10KFA05).
[9] Xiao Hong-kan, Xiao Shu-hu,Song Yong-hui,Zeng Ping,Shao Hong,Zhang Guo-fang,Li Hui, Study on the Pretreatment and Copper Recovery from Berberine Wastewater Containing Copper by Fe-C Micro-electrolysis,Journal of Environmental Engineering Technology. 1(1)( 2011): 15-19.

Origins of height distribution within carbon nanotube arrays Yang Li 1,2,a, Ru Li 3,b, Hao Zhang2,c, Min Luo1,2,d, Yongyi Zhang3,e, Zhendong Dai2,f* 1College of Material Science and Technology, Nanjing University of Aeronautics & Astronautics, 29 Yudao street, Nanjing 210016, China 2Institute of Bio-inspired Structure and Surface Engineering, College of Astronautics, Nanjing University of Aeronautics & Astronautics, 29 Yudao street, Nanjing 210016, China 3Key Laboratory of Nano-Devices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Ruoshui Road 398, Suzhou 215123, China aliyangnuaa@126.com, brli2011@sinano.ac.cn, cmeehzhang@nuaa.edu.cn, dluomin@nuaa.edu.cn eyyzhang2011@sinano.ac.cn, f*zddai@nuaa.edu.cn Keywords: Carbon nanotube arrays, height distribution, carbon source, pyrolysis.
Aligned CNT arrays are being used as a multifunctional nanomaterial in emitters and displays, highly permeable membranes, thermal-interface materials, and dry adhesives, among other [3-6].
Acknowledgments This work was supported by Natural National Science Foundation of China (No.51275237 and No. 51435008 (key project)), the Natural Science Foundation of Jiangsu Province, China (No.
Xu, T.S.Fisher, Enhancement of thermal interface materials with carbon nanotube arrays, Int.

Laser direct marking is a preferred method of performing DPM to attain permanent and highly contrasted superficial inscriptions on a wide variety of materials, ranging from glass, ceramics and wood to plastics and metals [4-11].
However, the DM code direct marked on the surface of material often suffers various interference or bad environment in the use, transport or storage process, such as abrasion, corrosion, thermal cycle, ultraviolet radiation, etc.
The relevant research on the durability of the DM code marked on different material in harsh environments has been carried out in abroad.
The domestic researches on the durability mainly concentrate on the substrate material.
Zhang, et al: China Mechanical Engineering Vol. 18 (2007), p. 676 [3] S.

Field Emission Model of CNT based Ionization Gas Sensor Salman Mahmood1,a, Zainal Arif Burhanudin1,b, and Nor Hisham Hamid1,c 1Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak, Malaysia asmkureishi@hotmail.com, bzainabh@petronas.com.my, chishmid@petronas.com.my Keywords: Breakdown voltage, carbon nanotube, ionization gas sensor, PIC-MCC.
One of the processes that play a key role in the gas breakdown is secondary electron emission.
But the work function is dependent on the material property so it cannot be changed for a particular type of material.
On the other hand, the field can be enhanced by changing the shape of the conducting material.
Terashima, Application of Microscale Plasma to Material Processing, Thin Solid Films 386 (2001) 300-304.

The modal parameter identification of large engineering structures have an important sense to applied civil engineering such as health monitoring, structure damage estimate, active control (fuzzy control), etc [1].
So the modal parameter based on ambient vibration has been adopted extensively in engineering applications.
Journal of Vibration Engineering. 3(1999), pp. 316~322.
Journal of Structural Engineering，ASCE，VOI.120，7 (2004), pp.I022~1031, [20]Ren, WX .and Zong, Z.H.
Output-only modal parameter identification of civil engineering structures Structural Engineering and Mechanics，Vol.17(2004), pp.429~444(In Chinese) [21]Keqing Fan, Yiqing Ni and Zanming Gao.

Beaumont2,b 1 Tohoku University, 6-6-01 Aoba-yama, Aoba-ku, Sendai 980-8579, Japan 2 Department of Engineering, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, UK a sekine@plum.mech.tohoku.ac.jp, b pwb1000@hermes.cam.ac.uk Keywords: Crack Growth Rate, Stress-Corrosion Cracking, GFRP, Micromechanical Theory Abstract.
In an engineering context, a first attempt at modeling this behavior of stress-corrosion cracking in GFRP composites would be to describe concisely a body of crack growth rate data as a function of the crack tip stress intensity factor using a fracture mechanics model [3-7].
But a better model, however, would be one that captures the essential physics of the engineering problem of fracture.
It would illuminate the basic principles that underline the key elements of the stress-corrosion process.
Material Environment Value of power Reference Unidirectional E-glass/polyester 0.6 N HCl 3.57, 4.22 3 2.56, 2.73, 3.99, 5.3 4 Unidirectional E-glass/polyester 1 N H2 SO4 3.1 6bridging polymer becomes larger.

Nanotechnology exploits current progress in physics, materials science, chemistry and biotechnology to form novel materials that have unique properties significantly different from their bulk counterparts.
From the past two decades, enormous efforts have been made to synthesize and characterize semiconductor materials of group II-VI, III-V, III-VI, and oxide-semiconductor materials.
The materials having no dimensions in the nano-scale region include bulk materials.
Du, Multifaceted applications of nanomaterials in cell engineering and therapy, Biotechnol.
Tiwary, Microwave assisted synthesis of CdS nanoparticles for structural and optical Characterization, International Journal of Innovative Research in Science, Engineering and Technology, 3 (2014) 10670-10674