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·cell-mutation :As we know, the function of "mutation" is to bring in new genetic materials and maintain certain diversity in a population[x.yao].The goal of cell-mutation is also to transform one cell into another.
It is the key to achieve a high performance.
Cell-Mutation: The basic goal of mutation operator is to transform one individual into another in search space. thus, new genetic materials are introduced in the population.
Systems Engineering and Electronics, Vol.26., No.11 [5] P.
Journal of WHUT (Information & mana gemenet engineering) Vol.25 No.6 Dec.2003 [6] Y.

This may necessitate the need to improve the geotechnical or the engineering properties of the material.
Researches have been geared towards using locally available materials as stabilizing materials.
In an attempt to provide sustainable construction materials through efficient reuse of waste materials, geo-environmental and geotechnical engineers are paying particular attention to the implications of soil stabilization with agro-wastes and industrial by-products.
Geo-Engineering., 6(1), (2015),1 – 21. doi: 10.1186/s40703-014-0001-0
Malomo, Weathering and weathering products of Nigerian rocks - Engineering implications, in Tropical soils of Nigeria in engineering practice, Edited by S.

Morgan School of Engineering, Liverpool John Moores University, Byrom Street, Liverpool, UK Keywords: Grinding, CBN, High Speed, Optimisation Abstract.
A key question is, whether increased wheel speed justifies a more costly machine tool?
Introduction Vitrified CBN appears to have all the attributes required to bring it to the forefront of grinding technology, i.e. long re-dress life, high hardness, high wear resistance, lack of affinity with ferrous materials, porosity for chip clearance and coolant retention, and the ability to be re-dressed true.
Proc. of the Society of Manufacturing Engineers, Paper MR84-526
Davis (1992) Engineering, Quality and Experimental Design.

V.e Department of Aeronautical and Space Engineering, Hanoi University of Science and Technology, No 1, Dai Co Viet, Hanoi, Vietnam adiem.phamgia@hust.edu.vn, bphamhoanganhbk@gmail.com, ckhanh.nguyenphu@hust.edu.vn, dhung.nguyenphu@hust.edu.vn, ehien.ngovan@hust.edu.vn Keywords: Quadrotor UAV, autonomous flying robots, CFD, hybrid dynamic system and hybrid automata.
A key characteristic of quadrotor UAVs is that the 6 Degrees of Freedom (DoF) dynamic model in the airframe is controlled by tuning the rotational speed of four motors placed symmetrically around that center at a radial distance.
Fig. 2 CAD model of the quadrotor UAV being developed In this application, ANSYS Fluent software [9] is used to assist us in carrying out the calculation processes; the software license has been registered by the authors’ Department of Aeronautical and Space Engineering, Hanoi University of Science and Technology.
This application can be extended with the increase in the altitude, radius of action, velocity and autonomy duration by using compatible physical components such as the engineering material, power resource, vision-based navigation components, etc.
References [1] Xun G., Zhicheng H., et al., Backstepping Sliding Mode Attitude Control of Quad-rotor with Adaptive Algorithm, 2nd International Conference on Materials, Mechatronics and Automation, Lecture Notes in Information Technology, Vol.15, ISBN 978-1-61275-015-6, ISSN: 2070-1918, ©2012 IERI, (2012), pp. 410-415

Method and Material Three filament comprising PET/PTT, PET and PTT were manufactured using the same spinning process ( Table 1) .
The key factor affecting the crimp property of PET/PTT filament was temperature.
References [1] S.P.Rwei, Y.T.Lin and Y.Y.Su: Polymer Engineering and Science Vol.45 (2005), p. 838-845 [2] T.
Sun: JournalL of Xi'an University of Engineering Science and Technology Vol. 20(2006), p. 706-709(In Chinese) [7] S.
Su: Polymer engineering and science Vol. 45(2005), p. 838-845 [9] J.

Ion, Surface Engineering 18 (2002) 14-31
[6] Jeddi D., Sidhom H., Lieurade H.P., Nizery F., Fabbro R.: Surface Engineering, 2001, Vol. 17, No. 5, pp. 371-378
[8] Jablonski F., Varvarikes J.: Materials Science and Engineering: A, 2008, Vols. 483-484, pp. 440-443
[10] Tsay L.W., Lin Z.W.: Fatigue & Fracture of Engineering Materials & Structures, 1998, Vol. 21, No. 12, pp. 1549-1558
[11] Doong J-L., Chen T-J., Tan Y-H.: Engineering Fracture Mechanics, 1989, Vol. 33, No. 3, pp. 483-491.

Momade3,c 1,2Department of Industrial Art (Ceramics) 3Department of Materials Engineering Kwame Nkrumah University of Science and Technology, Kumasi, Ghana alemuelgbologah@yahoo.com, bparpahkaye@yahoo.com, cfmomade@yahoo.com [Date received: 05 January 2012.
Carbon-Carbon composite (C/C) substrate materials are prone to severe oxidation and volatilization problems.
A practical approach to solve this problem is to protect such materials by surface coatings with refractory oxide materials.
The surface roughening, however, reduces the fracture strength of the coated materials.
Galasso, Deposition of improved SiC coatings on carbon-base materials, U.S.

Third, reasonable injection plan design and the surface engineering guarantee the good performance of field test.
In the process of field test, a combined technology system was formed, including the research and design of reservoir engineering, drilling engineering, oil production engineering and field surface construction engineering.
Interstitial material is mainly composed of 6.25% clay and 1.74% hydromica.
Cement materials are mainly composed of clay, the clay content is 2-3% and the carbonates content is 0.7%.
SPE 127453 (2010) [6] Shutang Ga: abroad oilfield engineering, Development of chemical combination flooding test, abroad oilfield engineering.

Prediction and control of Surface Texture of Single Direction Crepe Chao Chen1,a ,Yongkai Liu1,b 1College of Textile and Clothing Engineering, Soochow University, Suzhou, 215021, China achenchao@suda.edu.cn,bliuyongkai21@163.com Keywords: single direction crepe; surface texture.
Surface texture of single direction crepe has close relationship with its shrinkage performance, which was influenced by thermal condition in the manufacturing process, and this shrinkage performance has something to do with the yarn material.
The ultimate reason for single direction wrinkles is that weft yarn was single twist filament and through twisting it had got certain torsional stress, which was a key factor to wrinkle depth and width of the fabric surface [3].
Warp firmness, weft firmness and twist multiplier are key factors affecting surface texture of single direction crepe.

Survey of Seafloor Targets with Varied Sizes by Multi Beam Sonar in Different Depth Water Lihong Wu 1,2, a, Wenhai Xu 3,b and Wenbo Wang1,c 1 Transportation Equipments and Ocean Engineering College, Dalian Maritime University, China 2 State Key Laboratory of Robotics, China 3Information Science and Technology College, Dalian Maritime University, China awlh@sia.cn, bwhxu@dlmu.edu.cn, cwbwang@sina.com.cn Keywords: GeoSwath multi beam sonar; spatial resolution; seafloor target; large scale and fast detection; survey factors; data processing Abstract.
According to the depth gridfly of Line 1, the target is just put on the waterway whose bottom material is rock.
Acknowledgements This work is Funded by the National Science & Technology Pillar Program (No.2009BAG18B03), the National Natural Science Foundation of China (No.51009016), Projects of State Key Laboratory of Robotic (No.RLO201015), and the Fundamental Research Funds for the Central Universities (2011JC015).