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Behaviors of a Blast Wall according to the Angle of Vee Stiffener Christian Wijaya1,a and Byung-Tak Kim2,b 1Dept. of Mechanical Design Engineering, Graduate School, Pukyong National University, Busan, 608-739, Korea 2Dept. of Mechanical & Automotive Engineering, Pukyong National University, Busan, 608-739, Korea afluttermech@gmail.com, bbtkim@pknu.ac.kr Keywords: Blast wall, Localized buckling, Dynamic analysis, Vee stiffener Abstract.
The contribution of a stiffener is affected by many factors including stress state, loading levels and fixing details[7].
The material properties were Young’s modulus, E = 200 GPa, Poisson ration, v = 0.3, and the density, ρ = 7970 kg/m3.
Kim : Journal of Mechanical Science and Technology(2011), in press [11] UGS Corporation, NX Nastran 7 Advanced nonlinear theory and modeling(2009).

The fuel injection quantity fluctuation (FIQF) has adverse affects both on coherence and stability of HPCR system.
HPCR system is a complex fuel injection system integrated with electric field, magnetic field, mechanical motion and hydraulic action.
Model and experiment facilities Fig.1 Simulation model of the HPCR system Fig.2 Test bench of the HPCR system The HPCR system involves multiple physical fields which include electric, magnetic, mechanical motion and hydraulic action.
Factors involved in FIQF due to control valve lift are mainly due to the time taken by control valve in moving between its reset and set positions and the throttling action between control valve and sealing conical surface during fuel injection operation.
Simulation of the Magnetic Properties for Common Rail Electro-Injector[J].

The damage caused by blasting vibration on rock mass is an extremely complex process, and has certain impact on the mechanical properties and bearing capacity of the rock, which will affect the overall stability and safe operation of the construction.
Blasting is an extremely complicated process, which is influenced mainly by the factors of blasting vibration velocity, frequency and duration.

The applied compressive stress is the main factor controlling the near crack tip parameters.
The 0.2% yield stress and the ultimate stress used in this analysis are 353 and 462 MPa respectively and represents the material property of the aluminum alloy IN 2024-T351.
The loading history can be calculated at the same nominal stress intensity factor.
The compressive stress is main factor that affects the near crack tip opening displacement and plastic zone.
Zhang: Mechanical Engineer.

Based on this study, the thickness of electrolyte layer YSZ doesn’t affect the basic characteristic of PEC but affects the efficiency of PEC significantly.
Optical properties play an important role in semiconductor of PEC which is evaluated and displayed on Fig. 4.
Grätzel, “Analysis of electron transfer properties of ZnO and TiO2 photoanodes for dye-sensitized solar cells,” ACS Nano, vol. 8, no. 3, hal. 2261–2268, 2014, doi: 10.1021/nn405535j
Wang, “X-ray diffraction analysis of the yttria stabilized zirconia powder by mechanical alloying and sintering,” Ceram.
Narayan, “Semipolar r-plane ZnO films on Si(100) substrates: Thin film epitaxy and optical properties,” J.

Loading and Axial Deformation of Finite Element Analysis of Down-hole Strings used for Hydraulic fracturing Ding Feng 1,a, Ao Xiao 1,b, Zuo-jie Liao 1,c, Yu Xie 1,d, Chao Ruan 1,e, Jia-wei Wang 1,f 1School of Mechanical Engineering, Yangtze University, Jingzhou, Hubei, China, 434023 afengd0861@yahoo.com, bxiaoao4411@sina.com,c136827215@qq.com d360047329@qq.com, e364373174@qq.com, f wangjiawei1860@126.com Keywords: hydraulic fracturing; down-hole Strings; finite element analysis; fluid-solid coupling Abstract: The string is loaded by ground thermal stress, fluid squeeze pressure and gravity in horizontal wells in the process of fracturing.
Effects of fracturing strings are safe operation of important factors.
Fracturing fluid properties is defined according to the usual operation material attribute.
Parameters of total model are set as follow: casing, external diameter is 139.7,internal diameter is124.26,E is 210,Poisson ratio is 0.3, K-factor is 10;tubing, external diameter is 77.44,internal diameter is 62mm,E is 210,Poisson ratio is 0.3, K-factor is 10;fracturing fluid, density is 1040, viscosity factor is 3.93, flow coefficient is 0.5,K-factor is 10, entrance discharge is 2.4.
The string is affected by the formation temperature which is caused its temperature up.

Cotton is a hydrofilic textile fiber and, for this reason, it changes its properties according to the environment changes.
Moisture and Temperature are the two most important factors that lead a cotton Spinning sector and influence its quality.
Those two properties can change the entire Spinning process.
The humidity and the temperature are very important factors in a textile industry.
It may be seen through these values that even with this slight modifications, there was not major changes in the medium final result, therefore, it may be concluded temperature and humidity alterations have not affected considerably the count.

Specifications with various parameters and connecting installation forms can be derived by only adjusting or replacing some parts of the main parts of the products, then a complete series with many specifications takes shape. 2) More suitable for marine needs, easier maintenance Due to small cabin space and compact equipment layout, marine pump is asked to have a small form factor and be repaired easily in the event of a failure.
Mechanical noise and flow noise generated by the pumps pollute their operating environment and do harm to the physical and mental health of the operators, which is especially important for military vessels because that excessive noise will affect the quiet characteristic and concealment of the ship, and then reduce the security of the ship.
The workload of unplanned maintenance generated by the failure or damage of the mechanical seals accounts for about 60% of the maintenance of marine pump.
Therefore, it has become one of the important tasks of the designers of marine pumps that how to improve the designing level of mechanical seal, manufacturing quality and precision assembly, and reduce or eliminate the mechanical seal failure or damage effectively. ④ development of new-type material of marine pump Marine pump is a rotating machinery for pumping various liquids.
In the condition that plastic and other non-metallic materials are vigorously developed and promoted.Currently, bronze and brass material are used to cast the main components such as ship power pump body and impeller in China, which have good corrosion resistance and mechanical property.

Effect of Milling Parameters on the Structural, Microstructural and Physical Properties of Alumina-Titania-Graphite Nanocomposite Farah Wahida ISMAIL1,a, Mohd Hasmizam RAZALI2,b, Nik Nurul Anis NIK YUSOFF1,c and Mahani YUSOFF 1,d * 1Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, Locked Bag 100, 17600 Jeli, Kelantan, Malaysia 2School of Fundamental Sciences, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Terengganu, Malaysia afarahwahidaismail@gmail.com, bmdhasmizam@umt.edu.my, canis.ny@umk.edu.my, dmahani@umk.edu.my Keywords: Alumina matrix; Nanocomposite; Milling time; Milling speed Abstract.
This study focused on evaluate the effects on the structural, microstructural and physical properties of Al2O3-TiO2-graphite nanocomposite.
Higher milling time and speed produce finer and flaky shape of Al2O3-TiO2-graphite particles which then affects the green density of the composite.
Graphite addition in ceramic composite also improve the mechanical properties of ceramic based composite [6].
The instrument contributing factor, Bi was removed by following Gaussian peak shape function [9]: (Eq. 2) where Bi is broadening due to instrumental and Bo are the broadening due to size and strain.

Van der Pauw correction factor were calculated based on the results of the two-times voltage measurement.
However, his study focused on the determination of geometrical correction factors for the general case of an in-line four-point probe positioned on a thin circular sample.
There is reason to believe that the better performance of the designed measurement system is mainly attributed to the superior properties of dual-measurement with four-point probe method.
Lee, A New Micro-Four-Point Probe Design for Various Applications, IEEE 22nd International Conference on Micro Electro Mechanical Systems 2009 84-87
Perloff, Four-Point Probe Correction Factors for Use in Measuring Large Diameter Doped Semiconductor Wafers, Journal of the Electrochemical Society: Solid-State Science and Technology (1976) 1745-1748