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Comparative Analysis of Gaussian Minimum Shift Keying and Binary Differential Phase Shift Keying Signalling Schemes with Maximal Ratio Combiner over Rayleigh Environment Z.K.
Materials and Methods Mobile radio channel simulation was used because the system tests and evaluation which are less expensive and more reproducible than field trials can be easily carried out.
Izz Eldin : Performance of Orthogonal Frequency Division Muiltiplexing (OFDM) under the effect of wireless transmission System Drawbacks, Sudan Engineering Society JOURNAL Vol. 52, no 49, (2007) p. 17-26 [5] M.
Mohana : Simulation of Flat Fading Using MATLAB for Classroom Instruction, Electrical and Computer Engineering, Drexel University.
Adeyemo : ‘Performance of Binary Phase Shift keying(BPSK) and Quartenary Phase Shift Keying (QPSK) Signalling Schemes in Fast and Frequency Non- Selective Rayleigh fading channel with Decision Feedback Equalizer (DFE) at the Receiver’ Advanced Materials Research, Trans Tech Publications, Switzerland, vols.62-64, (2009) p.99-104

Materials Life Cycle Assessment of Chemical Strengthening Glass used for Touch Screen Panel Na-Ri Lee¹,a, Soo-Sun Lee¹,b, Kyeong-Il Kim¹,c, Sung-Jei Hong²,d and *Tae-Whan Hong¹,e ¹Department of Material Science and Engineering/Research Center of Sustainable Eco-Devices and Materials(ReSEM), Chungju National University, Daehak-ro 50, Chungju-si, Chungbuk, 380-702, Republic of Korea. ²Korea Electronics Technology Institute, #68 Yatap-dong, Bundang-gu Seongnam, Gyeonggi Province, 463-816, Republic of Korea.
In this study, we carried out the MLCA(Material Life Cycle Assessment; MLCA) on a chemical strengthening glass by landfill scenario, reuse scenario and identified the key issues.
Also, we identified the key issues [2, 3]. 2.
Gabi contain materials, manufacturing process.
Therefore, we focus on reuse and if we use alternative materials or reduce the amount of materials that cause the environmental burden, we can reduce environmental burden value.

Experimental Conditions Ultrasonic Aided Lapping Test of Engineering Ceramics.
Ultrasonic Parameters Power: 40W; The maximum amplitude of the tool: 16µm; Freq.: 20KHz Fig.1 Common and ultrasonic lapping test Materials Properties.
Main materials properties are shown in Table 2.
Table 2 Mechanical properties of engineering ceramics Engineering ceramics ZrO2 ZTA Al2O3 Hardness [HRA] 88 83-88 85-93 Density [g/cm 3] 6.0-6.14 4.6-4.99 3.4-3.95 Elastic modulus [GPa] 210 285 380 Fracture toughness [MPa.m 1/2] 9.0-11.0 6-7.6 3-3.2 Surface Phase Structure Test of Engineering Ceramics.
Niihara: Nanostructured Materials, Vol. 9 (1997), pp.193-196

Water-tight junction box (WJB) is one of key underwater vehicle technologies, which is indispensible in nowadays underwater engineering.
Titanium thin film is widely developed and used in micro-electromechanical systems (MEMS), medical implantation, and the potential applications of smart materials[8].
Y, DSV-specific tool-box for the deep-sea resources exploitation, Chinese Journal of Mechanical Engineering, 2003,39(11), pp. 38~42.
L.X, Development of pressure compensator for deep water hydraulic power station, Ship Engineering, 2000(2), pp. 60~61.
L.Y, Deep-sea pressure adaptive compensation technique for underwater robots, Mechanical & Electrical Engineering Magazine, 2007, 24(4), pp. 10~13.

High concentration of viscous material pipeline characteristics of the discussion Yu Zhi-fu1,a Tian Xiao- li2,b Pan Yue3,c 1College of Mechanical and Electrical Engineering, Hebei University of Engineering, Handan 056038, China 2College of Mechanical and Electrical Engineering, Hebei University of Engineering, Handan 056038, China 3College of Mechanical and Electrical Engineering, Hebei University of Engineering, Handan 056038, China aguokemax@sina.com btianxiaoli2008yan@163.com cguokemax@yeah.net Key words: viscous materials, sensing devices, pressure testing, pressure distribution, pressure drop Abstract: The high concentration of different rheological properties of viscous materials determines the properties of the material advantages and disadvantages of piped varying degrees, this article in order to slime represented by a variety of high concentration of viscous test material for pipeline transportation, according to pipeline pressure loss of various materials
, Jianli resistance loss calculation model, Through the pipeline test materials were obtained several pipe side wall of the pressure drop and average velocity and flow of materials and the formula for the theoretical basis for engineering applications.
Table .4 1 # compare with the pressure of the pressure transmitter Discharge () 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 Distanc () Test value () 4.95 5.10 5.48 6.50 7.62 8.22 9.30 10.4 11.3 12.1 11.7 Calculated () 4.65 4.95 5.41 6.07 6.92 7.91 8.94 9.86 10.6 11.2 11.5 Error () 0.3 0.15 0.07 0.43 0.7 0.31 0.36 0.54 0.70 0.90 0.20 Accuracy (%) 6.06 2.90 1.28 6.62 9.18 3.77 3.87 5.19 6.19 7.43 1.71 Precision engineering allow less than 10%, therefore, the empirical formula can be used for engineering calculations and complete pipeline design. 6.
When the transmission distance, the fitting formula to calculate the pressure values measured error is greater in individual cases, some even 40%, these data both for the experimental research or engineering is desirable, but can be as a reference for a number of other high concentration of relatively viscous material pipeline.
Experimental and theoretical studies, this paper the following preliminary conclusions: (1) modified and improved pipeline pressure testing system for the follow-up to build a test platform for research (2) the establishment of a high concentration of viscous materials, computing model of pressure distribution pipeline (3) proposed to strike a sliding friction coefficient of the analytical method (4) proposed amendments to the viscous material flow equation method (5) proposed amendments to the viscous material flow equation method (6) high concentration of viscous materials, the radial pressure and axial pressure pipe pressure of the relationship between theory and experiment (7) high concentration of viscous properties of pipeline materials For non-Newtonian viscous fluid type of high concentrations of materials, use of pipeline transportation is a new exploration and creation.

Engineering application of precast assembly integral shear wall structure on housing industrialization Yong Wang,Yanni Zhang,Feng Yangand Xiaoxi Xia College of communication and art, University of Shanghai for Science and Technology, Shanghai, 200093,China.
This paper lists the structure engineering example which is Beijing holidays landscape D1, D8#floor and discusses the key technologies of engineering examples and application status of precast assembly integral shear wall structure in the residential industrial engineerings, then propose some difficulties and challenges in the process of the housing industrialization .
Introduction of the engineering situation The project is located in Beijing Fengtai District Village No. 108.
Thermal insulation materials and structural materials (steel reinforced concrete) of the external wall and the bay window on the north and South outside wall are combined into a whole.
Third, waterproof materials(modified silicone rubber) are used in the joints of exterior wall.

Construction and Practice for Practical Teaching Base on Campus for Petroleum Engineering Wenhua LI1,a,Xi-an WANG1,b,Zhenku WANG 1,cand Jingcheng LIU1,d 1College of Petroleum Engineering,Chongqing University of Science and Technology,Chongqing,401331,China acqustliwenhua@126.com , bcqustwangxian@126.com, ccqustwangzhenku@126.com, dliujingcheng1980@126.com Key Words: Petroleum Engineering, Practical Teaching, Talents Training.
Introduction The construction of practical teaching base on campus for petroleum engineering is a systemic project that is suitable for the training mode for petroleum engineering professional to train the practical talents required by petroleum industry.
The training objective for such majors as petroleum engineering, gas storage and transportation engineering and resource prospecting is determined to be “Engineer on the Production Site of Petroleum and Gas” by Petroleum and Natural Gas Engineering College.
In order to meet the requirement of practice for the students majoring in Petroleum Engineering.
The practical teaching base on campus for petroleum engineering is planned and constructed according to the requirements of enterprise and university.

Finally practice and verify the requirements analysis of the CIMS application engineering for one discrete manufacturing enterprise in Shanghai.
(2)The diversity of production materials of the discrete manufacturing enterprises generally determines that the workers of equipment and technology must have enough flexible adaptability
When the CIMS engineering designer know the current situation and future of the enterprise management goal, then can proceed to the gap analysis.
Fig. 4 The total structure figure of M-CIMS Among them, the hardware platform of the M-CIMS engineering design subsystem is consisting of nine graphics workstations, 198 microcomputer, 2 minicomputer servers and 4 subnet servers, the software platform is consisting of the integrated CAD/CAE/CAM software, the ANSYS engineering analysis software, the TEAMCENTER engineering database software and a large number of self development and cooperative development of engineering application software.
The follow Fig. 5 is the CIMS engineering automation workshop created by M company and the Fig. 6 is material stereoscopic warehouse of M-CIMS.

Mohamed Fathimal2,d 1Student, Computer science and Engineering, SRM Institute of Science and Technology, Vadapalani, India 2Assistant, Professor, Computer science and Engineering, SRM Institute of Science and Technology, Vadapalani, India asarangaraja97@gmail.com, brajatechrj7@gmail.com, cvignesh3967@gmail.com, dfathimap@srmist.edu.in Keywords.
For image encryption, use the Symmetric key and a private/public key pair.
We used materials from 2014-to 2021 to keep up with the latest trends.
Optics and Lasers in Engineering, 128, 105995. (2020a)
Optics and Lasers in Engineering, 125, 105851. (2020b)

Key Technologies Research for Impellers Machining Based on NX Xianyi Li 1,2,a, Jianzhong Fu 1,b and Jiqiang Li2,c 1Zhejiang University, Zhejiang Province Key Lab of Advanced Manufacturing Technology, Department of Mechanical Engineering Hangzhou, Zhejiang Province 310027, P.R.
The rough machining of impeller’s flow channel will remove the massive materials, Increasing the machining efficiency during the rough and semi-finish milling process is the main consideration, The feed and depth of cut should be as big as possible in order to remove redundance material in the short time.
Because remainder is big in the process of rough machining, Two different directions may selected to carry on, when direction is selected, the working range should be big as far as possible, eliminates materials as far as possible.
Fred: Society of Manufacturing Engineers, Vol. 2(1987)pp.2-12
[5] S.L Chen,W.T Wang: Journal of Materials Processing Technology,Vol.115 (2001),pp.284-293.