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In that case, the characteristics of EDMed surface affects the molding performance and the life of metal molds.
In some cases, mold release agent components for easy releasing of molded product are included directly into the resin material granule, but this countermeasure may deteriorate the mechanical properties of the molding products.
Therefore, it is considered that the contact angle would have a relation with the releasability of molded resin from the surface and the antifouling property of the surface.
(1) The adhesive force per unit area f means the chemical bonding force between EDMed surface and molded resin, which is greatly affected by chemical components on the adhesive interface, especially by the chemical composition of EDMed surface.
On the other hand, the real contact area S is geometrical factor, which is influenced by the interface profile and the tranferring ratio of the molded resin to the EDMed surface.

fatigue estimation theory to estimate total life and remaining life of the quayside container crane and grasp the structural’s ability of resistence to fatigue.The data that used in the estimation of fatigue life for quayside container crane including signals of measuring points obtained during testing and its total weight of handling since it put into use.There are two points should be noted: first, the state of quayside container crane can not be exactly the same during each loading and unloading process,so the fatigue testing data can not be a true reflection of the stress state of the structure during each loading and unloading;second, because equipment managers only record the cumulative crane’s history handling capacity, rather than the actual loading and unloading volume of each process,so it is inaccurate to calculate times of quayside container crane’s past handling based on the total handling capacity, rated load capacity and years it has been used.The inaccuracy of the data affects
Shanghai Maritime University researched and developed Crane Monitoring & Assessment System(CMAS),this system can real-time analyze mechanical dynamic performance of the structure and organization of large equipment[3].As CMAS is monitoring and obtaining changes of stress of quayside container crane’s structure every moment,therefore, actual stress changes of quayside container crane structural during each operation can be obtained.This also means that a true record of stress cycles can be acquired.
Equivalent stress amplitude is calculated by Good-man formula[5]: (1) (2) Where is amplitude of real-time stress signal, is limit of intensity of the material , is amplitude of static failure stress, is average stress value, is the amplitude of equivalent stress value, and 1.3 is dimension correction factor . 2.4 Calculations of the P-S-N curves of six Points According to JIS B 8821-2004 Fatigue properties of material generally represented by uniaxial stress - cycles :S-N curve(without considering fatigue theroy based on fracture mechanics).Material S-N curve is acquired by constant amplitude load test of standard sample under a specific stress cycle mode.

1Influence of microstructures on wettability on stainless steel Fu Ting1a, Tang Yong1b*, Guo Liang2c, Wan Zhen-ping1d, Luo Wen-jie1e 1School of Mechanical and Automotive Engineering, South China University of Technology, No.381, Wushan Road, Tianhe District, Guangzhou, Guangdong, CN 510641, China 2School of Information and Optoelectronic Science and Engineering, South China Normal University, University Town, Panyu District, Guangzhou, Guangdong, CN 510006, China afuting1234gh@163.com bytang@scut.edu.cn c15323310190@163.com dzhpwan@scut.edu.cn e1034373542@qq.com Corresponding author: TANG Yong, Professor, PhD; E-mail: Ytang@scut.edu.cn Keywords: Wettability Microstructure Contact angle Laser processing Abstract The influence of microstructures on wettability on stainless steel was investigated.
And surface properties were characterized and researched.
The apparent CAs with Wenzel and Cassie models were given by [9, 11, 12]: (1) (2) Where r is the roughness factor, f is the ratio of area contacting with the droplet of the rough surface to the project area, is the CA on the flat surface.
So the experiment results were affected by the machining error.

Tensile strength and yield strength are two important mechanical properties to measure deformation of metal materials.
The linear expansion factor (linear elasticity coefficient) indicates the ability of material expansion or contraction, which is the main parameter to measure material thermal deformation.
However, the existing technology cannot process the ceramic heat exchangers on complex surfaces, which also affects the promotion of ceramic heat exchangers.

The CEB Mode Code [4] gives Dynamic Increase Factor (DIF) to consider the ratios of concrete and steel load-carrying capacity under dynamic and static loading conditions.
Using the Timoshenko beam theory, variation of impulsive loads, distributed mass and stiffness, as well as mechanical properties were coded into the FDM model to solve partial difference equations of motion of the structural element.
The design of structures to resist the affects of accidental explosions.

A three-dimensional numerical analysis on the effective permittivity of composites including ellipsoids Deyuan Zhang1,a, Liming Yuan1,b *, Yonggang Xu1,c and Jun Cai1,d 1Bionic and Micro/Nano/Bio Manufacturing Technology Research Center, School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China azhangdy@buaa.edu.cn, blming_y@163.com, cxuyonggang221@163.com, djun_cai@buaa.edu.cn Keywords: Finite-element method; ellipsoidal inclusions; the effective permittivity.
(4) Where εi is the intrinsic permittivity of ellipsoidal inclusions, εm is for the host matrix, f is the inclusion concentration, Nk is the polarization factor and the index k denotes x, y or z direction.
Myroshnychenko, Modeling dielectric properties of composites by finite-element method, J.
Boudida, How do shape anisotropy and spatial orientation of the constituents affect the permittivity of dielectric heterostructures, J.

Šašić3,c 1 Faculty of Mechanical Engineering, Kraljice Marije 16, Belgrade, Serbia 2 Faculty of Electrical Engineering, Bulevar kralja Aleksandra 73, Belgrade, Serbia 3 Faculty of Technology and Metallurgy, Karnegijeva 4, Belgrade, Serbia a,c plukic@mas.bg.ac.yu, b ramovic@kiklop.etf.bg.ac.yu Keywords: SiGe MOSFET, Transport characteristics model.
SiGe based MOSFET (Metal Oxide Semiconductor Field Effect Transistor) structures have received much attention as devices which have some better properties than standard silicon based ones: high carrier mobility, high amount of carriers in transistor channel under low gate voltages, high drift velocity of holes, built-in channel in order to overwhelm hot carriers effect, compatibility of the manufacturing process with still existing CMOS production plants [1, 6-8].
Proposed Model The electric field in a transistor strongly affects electron and hole carrier mobility in MOS devices.
Carriers mobility can be expressed as: ( )       ⋅−−⋅⋅⋅⋅+ = 2 1 ds Qthgs eff Gsdeff eff effRsd V BVV L W CRsc sc µ µ µ . (17) In equation (17) BQ is the substrate charge factor.

Introduction Predicting the conditions for the occurrence of dynamic recrystallization (DRX) during hot deformation of metals remains a problem of great technological importance as alloy mechanical properties become severely affected by this phenomenon.
The axial stress is obtained by employing the Taylor relation [4]: σ = αMµb√ρ, where α = 0.3 is a constant and M = 3.0 is the Taylor factor.

In Printed electronic technology, conductive ink is a key factor.
Experimental instillation method and PVP content will affect the size of silver particles, and in the seven experiments shown in Tab.1, instillation method is different in I, II, III, and IV, whereas, the PVP content is not the same in V, VI, I, and VII.
After10 times tearing experiment using sealing tape, the ink layer was like intact, and after 6000 times friction on rubbing fastness tester, the ink layer was not damaged, which proved good mechanical properties of the ink.

Introduction Since the discovery of carbon nanotubes in 1991 [1], One-dimension (1D) nanomaterials such as nanotubes, nanowires and nanorods have attracted extensive interest because of their novel chemical and physical properties, as well as wide-ranging applications in electronic, optical, mechanical, and bioscience applications [2-7].As a result, diverse synthetic routes have been directed to achieve 1D nanostructures such as sol-gel route, hydrothermal method, solid-state method, vapor-liquid-solid (VLS), etc [8-11].
In further experiment, we found that the amount of Na2CO3 presented in the parent solution is also an important factor which affected the morphologies of the products.
Hence, the presence of CO32- in the parent solution and the ultrasound irradiation are important factors for the nucleation and growth of 1D MSn(OH)6 (Ba, Ca, Sr) nanostructures.