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HASSAN* Physics department, College of Science, University of Basrah, Basrah, Iraq.
The result showed four peaks centered at 380 nm, 445 nm, 475 nm, and 500 nm related to near band to band emission and defects states. 1- Introduction Nanostructured metal oxide materials open a new study for enhancement of bulk materials.
Among them, the hydrothermal method has become the easiest way to synthesis nanostructure materials with numerous structures.
All the involved starting chemical materials such as SnCl2 .2H2O, and NaOH are used without further purification.
Journal of Physics: Conf.

Experimental Materials and Methods A High Voltage Electrostatic Field Source High-voltage electrostatic field source made in the Kunming Army Institute Science and Technology Development Department is apparatus of high-voltage electrostatic field.
Beijing: Science Press, 2008:75-78 [2] Cao Yong-jun, Xi Gang, Yang Chu-ping.
Application and Environmental Biology Journal, 2004,10 (6) :691-694
Southern Agriculture University Journal , 2005,26 (2) :73-76
Yunnan Agricultural University Journal, 2005.1 (2): 147-150

Utilizing Rate of Packaging And Transportation Material Qualified Rate of Letting rubbish Consuming of Material And Energy Table 2 Comparison Table of Training Parameter Length of Step 0.05 0.05 0.05 0.05 0.05 Training Target 0.001 0.001 0.001 0.001 0.001 Hidden layer members 7 9 11 13 15 Iterative Times 20 17 10 10 23 Sample Error (10-4) 7.4375 4.2142 8.1774 9.7375 5.8502 Table 3 Error Comparing Table Simulation Result 0.6944 0.7139 0.5096 0.6151 0.6240 Desired Output 0.7152 0.7331 0.5134 0.6273 0.6345 Error 0.0208 0.0192 0.0038 0.0122 0.0105 Fig. 1 Error Curve of Supply Chain Performance Evaluation Summary At present, there are only a few researches on supply chain performance evaluation system.
Acknowledgment This research is supported by the National Science Foundation of China (Grant# 70871119/G0109), the National Social Science Foundation of China (Grant# 07XJY026) and the Science Innovation Foundation of Logistical Engineering University (2006).
References [1] Huo Jiazhen, Sui Minggang, Liu Zhongying: Construction of integrated supply chain performance measurement system, Journal of Tongji University No.4(2002)
[4] ZHOU Lijun: Application of SCOR model-based supply chain performance evaluation in the corporate competitiveness, Journal of Nanjing Institute of Industry Technology, vol. 9(3) (2009), p. 7-9
[12] Zhao Quanchao, Wang Bo, Liang Zhen: Application and amendment of BP neural network model to enterprise integrated performance evaluation, Industrial Engineering Journal, vol. 8(3) (2005), p.102-107.

Phase-field Simulation Studies Of Dendrite Growth Coupling With Force Flow Field FENG Li1,a, ZHU Changsheng1,a,LU Yang1,a,WANG Zhiping1,2,a,AN Lingmin1,a 1 Institute of Material Science and Engineering, Lanzhou University of Technology, Lanzhou , China 2Gansu Non-ferrous Metals and Composite Materials Engineering Technology Research Center, lanzhou , China afenglils@lut.cn Keywords: Phase field method Forced flow Dendrite growth Simulation Abstract.
Acknowledgements This investigation is supported by the National Natural Science Foundation of China (No.: 51161011,11364024), Gansu Province Natural Science Foundation (No.: 1108ZSB096) and Tamarisk Young Talent Funds of Lanzhou University of Technology.
Journal of Mechanical Engineering[J], 2010, 46(14):60-67.
Journal of Cryst.
Journal of Crystal Growth [J], 2000, 213 (1): 161-187

In the experiment, the scrap aluminum were used as raw material .
The scrap aluminum were used as raw material to product ultrafine Al(OH)3 powders is the best way to recycle waste material.
[3] N.Bhattacharya, J.K.Pradhan, P.K.Gochhayat, et al, Factors Controlling Precipitation of Finer Size Alumina Trihydrate, International Journal of Mineral Proessing. 65 (2002) 109-124
[4] H.X.Li, J.A.Mensall, J.C.Thomas, et al, The influence of Al(111) supersaturation and NaOH concentration on the rate of crystallization of Al(OH)3 precursor partieles from sodiurn alurninate solutions, Journal of Colloid and Interface Science. 286 (2005) 511-519

For the material physical systems, that simulate the dynamic behavior of equipments, industrial plants and constructions, the operation in resonance mode is unstable being characterized by pulse variations in the band-pass.
In this paper, the operating element of the vibrating equipment is modeled as an one-degree-of-freedom system, with mass m and with the viscoelastic links k,c specific to the external medium (material) with which the operating element comes into contact for the required operating process.
Bandstra, Comparison of equivalent viscous damping and nonlinear damping in discret and continuous vibrating system, Journal of Mechanisms, Transmissions and Automation in Design, J.V.A.S.R.D., vol I 105, 1983 [2] P.
Bratu, Analysis of the antivibrating elastic systems having amplified static deflection, Proceedings of the National Conference THE ACADEMIC DAYS OF the Academy of Technical Sciences in Romania, Timişoara, May, 2005
O’Kelly, Effect of damping on the natural frequencies on linear dynamic systems, Journal of the American Statistical Associating, J.A.S.A., vol. 33, 1961 [7] I.

Introduction Porous carbon materials can be synthesized using various carbonaceous precursors such as coal, lignite, shell, wood and etc. via carbonization process and the synthesized materials called as active carbons [1].
However the size of pores is limited to the thickness of the wall of mesoporous materials.
Electrochemical Properties Cyclic voltammetry is an important technique to characterize the EDLC materials.
Cheng: Materials Letters Vol. 60 (2006), p. 3517 [8] K.T.Lee, X.
Li: Materials Chemistry and Physics Vol. 138 (2013), p. 484 [14] P.

This die attach material is suitable for power devices operating under high temperatures or other harsh environments.
Experiments The materials required for the fabrication of the core-shell structured metal powders are listed below: Cu particles (3 μm and 30 μm in diameter), stannous chloride, thiocarbamide, methane-sulfonic acid, hydrochloric acid, glycol, ammonia water, a small amount of ethylene diamine tetraacetic acid (EDTA), hydroquinone, and sodium hypophosphite.
Firstly, thiocarbamide (0.65 mol/L), EDTA (0.0014 mol/L), hydroquinone (0.0036 mol/L), and sodium hypophosphite (0.2 mol/L) were dissolved in 80 mL of deionized water, methane-sulfonic acid (0.0042 mol/L) and glycol (15 mL/L) were added, and the solution was stirred gently until the materials completely dissolved.
Acknowledgements This work was financially supported by the National Natural Science Foundation (No. 51375116), Shenzhen Special Funds for Overseas High-Level Talents (No.
Smits, “Measurement of Sheet Resistivities with the Four-Point Probe,” Bell System Technical Journal, vol. 37, no. 3, pp. 711–718, 1958

Values for Model Simulations Length of pipe 100 m Coefficient of friction 0.04 Pipe material density 781 kg/m3 Internal radius 193 mm Elastic constant of pipe material 200 × 109 Pa External radius 203 mm Excitation force frequency 10 rad/s Excitation force 10 KN Fluid density 850 kg/m3 Foundation stiffness constant 1KN/m Table 3.
Zhang, Dynamic Analysis of an Axially Moving Underwater Pipe Conveying Pulsating Fluid, Frontiers in Marine Science, 9(982374), (2022) doi: 10.3389/fmars.2022.982374
Hu Critical flow velocity of fluid-conveying magneto-electro-elastic pipe resting on an elastic foundation, International Journal of Mechanical Sciences, 119, (2016), pp.273-282
Feng, Analysis of vibration stability of fluid conveying pipe on the two-parameter foundation with elastic support boundary conditions, Journal of Ocean Engineering and Science, (2022) https://doi.org/10.1016/j.joes.2022.11.002 Available online 16 December (2022)
Journal of Sound and Vibration, Elsevier, 329 (1), (2010), pp.72-83. ff10.1016/j.jsv.2009.08.029ff. ffhal-00838862

Engineering Science and Technology, an International Journal. 22 (2019), 899–919
Journal of Simulation. 10 (2016) 193–206
, Proceedings of the Procedia Computer Science. 180 (2021) 978–987
Menéndez, Aircraft Final Assembly Line Balancing and Workload Smoothing: A Methodological Analysis, Key Engineering Materials. 502 (2012) 19–24
Wille, Modeling and Simulation of Electrophoretic Deposition Coatings, Journal of Computational Science. 41 (2020) 101075