Search results

Introduction Cylinder is a die casting products, it exists many problems in production such as low yield, much defect and poor surface quality and so on, which will affect economic profitability and competitive capacity of enterprises seriously.
It improves the microstructure and mechanical properties and reduces the porosity and shrinks of the cast.
Fig.1 The casting 3D mould Fig.2 The finite element model In the process of die casting, there are many influence factors in liquid metal filling, the major ones being shot velocity, pressure, pouring temperature and preheated temperature of die.
Fig. 5 Cylinder production (a) position 1 in Fig.3 (b) position 2 in Fig.3 (c) position 3 in Fig.3 Fig. 6 Metallographic diagrams of three positions The microstructure and mechanical properties of the shell were observed.

Thus, adding hardware, increasing in task’s complexity, and length of duration in autonomy are factors that make the power supply in the mobile robot a critical component in the system.
However, batteries are usually unpredictable source of power, due to insufficient knowledge about the state of the battery, which could be affected by factors like the storage conditions, charging procedures, shelf life, and cycle life [1].
Our previous work describes the mechanical structure of the robotic mobile base to be employed for the project [2].
There are other properties in a battery that should be considered during the design stage of a power system.
Conf. on Mechanical Design, Manufacture and Automation Engineering MDMAE, Phuket, Thailand, 2014

The average grains size and shape factor of solid grains were affected by melting mechanism and grain growth mechanism.
The components fabricated by casting methods obtain many defects such as segregation and porosity, which reduces their mechanical properties [10].
Tin, Nickel-Based Superalloys for Advanced Turbine Engines: Chemistry, Microstructure and Properties, J.
Liu, Microstructure evolution and mechanical properties of ZK60 magnesium alloy produced by SSTT and RAP route in semi-solid state, Trans.
Chang, Research on microstructure and mechanical properties of a new α + Ti2Cu alloy after semi-solid deformation, Mater.

The main focus of this paper is concerned with the production and properties of refuse derived fuel 5 (RDF-5) for use in energy from waste technologies.
This was further investigated in the context of the parameters required during production and the properties of RDF-5.RDF-5 was produced using a screw compactor.
The ratiosof MBWT to crude oil sludge were5:95, 10:90, 15:85 and20:80 respectively.The major themes were the physical and thermal properties of RDF-5.This was further investigated within the context of the parameters required during production and the properties of RDF-5 for the production of alternative energy fuels.RDF-5 was produced using a screw compactor.Analysis of the optimal mixing ratios between crude oil sludge and MBWT were undertaken by testing the thermal values based on ASTM D 240.
Transportation cost to users is an important factor that has to be considered. 2.
Conclusion MBWT from an open dumpsite in Phitsanulok, Thailand were utilized by transforming them into RDF-5 and an analysis of the produced RDF-5 was undertaken by testing the physical and thermal properties of RDF-5.The following conclusions can be drawn from our study.

The general-purpose non-linear finite element analysis software ABAQUS is adopted to simulate the mechanical performance and overall buckling of aluminium alloy columns.
The general-purpose non-linear finite element analysis software ABAQUS is adopted to simulate the mechanical performance and overall buckling for aluminium alloy columns.
Factors affecting the ultimate strength of aluminium alloy columns such as material properties, section profile, failure mode, slenderness ratio, support seat condition, initial geometric imperfections and initial eccentricity are analyzed in this paper.
Mean values of the test results for the tensile property are shown in Table 2.
Generally, three factors including material properties, initial imperfection and boundary conditions play important role in influencing the results of simulation and test.

On the composition and structure, the soil presents anisotropy, heterogeneity, discontinuity and randomness; on mechanical properties, it shows strong nonlinear, inelastic and viscous.
The relationship between stress and strain of soil is very complex, which is affected by factors such as the stress path, the state of soil, etc [2,3,4].
Due to the nature of the geotechnical materials, it is very difficult to establish an ideal constitutive relation, so that it is always to simplify various conditions to reflect its main properties in the engineering application.
Thus it provided evidence that interaction effect of pile and soil is concerned with these factors, such as pile and soil properties, the load transfer law of piles, stress level, etc.
The area of soil to be weighted was to take comprehensive consideration of soil nature, stress level and other factors, which affect the interaction of piles and soil.

Nowadays, it becomes more challengeable to the research of the characteristics of short cracks because the performance of short cracks is affected more by the microstructure than long cracks [1, 2].
It is the main factor that the discontinuous shear strain affects the crack initiation.
Numerical Simulation on the Short Crack Initiation of LZ50 Axle Steel By the mechanical properties, a numerical analysis is pre-conducted with the finite element model of the specimen based on the triangular-wave loading block.
(a) N=5000 (b) N=6000 Fig.2 the short cracks in the microstructure Conclusion Based on the microstructure of LZ50 axle steel for railway vehicles, the mechanical properties and the probabilistic fatigue S-N curve, the short crack initiation in LZ50 is investigated by numerical simulation.
(3) In the uniaxial tensile-compressive loading case, the crack inclination is mainly affected by the direction of loading and the maximum plane is about 45° to the loading direction.

Scale Effect of Phenomenon is due to physical quantities in microcosmic and macrocosmic affect systems in different degree.
Other scale effects are caused by physical properties change.
Those physical properties include many kinds of physical characteristics. [3.4.5].
Microelectro Mechanical System and Technology.
Leuven, 1998: 1516-1521 [4] Meng Guang, Wenming Zhang, Mirco-Electro-Mechanical System Dynamics.

Dielectric ceramics possess good thermal stability and mechanical property compared to polymer [3].
Therefore, the improvement of DBS is the key to enhancing the energy storage properties for SBT.
The energy storage properties of (1-x)SBT-xCT at 180 kV/cm are shown in Figure 4a-d.
The DBS is affected by many factors, such as grain size, porosity, defects, secondary phase, and so on [3].
(c-d) P-E loops and energy storage properties of (1-x)SBT-xCT with maximum applied electric fields.

Several parameters that affected conjugations of the IONPs-Ab were studied namely iron oxide concentration, antibody volume, stabilizer concentration and the amount of SiPEG coating.
These biomedical applications rely on the advantages of IONPs that have low toxicity and the possibility to exploit the outstanding magnetic properties.
This approach also has an advantage of activation specificity by applying external magnetic properties to the diagnostic kit.
The factors that affect the conjugation of the IONPs-Ab also were studied such as iron oxide concentration, antibody volume, stabilizer concentration and the amount of SiPEG coating.
Several parameters that affect the IONPs-Ab conjugated were studied to obtain the optimum condition for conjugation (Table 1).