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The Kinematical Performance Analysis of a Kind of Parallel Turning-Grinding Machine S.X.Yuan 1, a X.L.Wen 1,b M.Hu 1,c 1 School of Mechanical Engineering & Automation, Northeastern University, PRC a sxyuan@mail.neu.edu.cn, bwenxuelong1985@163.com, cminghu@mail.neu.edu.cn Keywords: Parallel Mechanism, kinematical performance, jacobia matrix Abstract.
Workspace As the 2-PRR parallel institutions in the X-Y plane for translational, two sliders do the same straight line, so drivers will not interfere with blocks, so this body is mainly due to track length and angle between two factors affecting rod work space.
Conclusions In this paper, is first introduced by the 2-PRR Parallel institutions of the kinematic properties.
Planar 2-DOF parallel mechanism and size of shape Singularity Analysis[J]，Mechanical Design，2002，(Supplement):75-76 [3] WANG Xi min; FU Yu jin; CAI Guang qi; HU Ming.

Tianyi Han (2008) thought that the strength and stress distribution of rock and soil will be changed by temperature and water in three ways: freeze changes the structure of soil; phase transition between water and ice results in frost heave; water migration leads to the uneven distribution of water [4].The mechanical properties of frozen soil and freezing and thawing of the soil depended on heat transfer when phase transition and phase transition process [5].
The two factors affect the volume changes of frozen soil: the volume strain caused by temperature changes, the volumetric strain produced by moisture migration and phase transitions.
After calculation of each step for temperature field, the language fish is used to access the relevant parameters of the stress and seepage fields affected by temperature, so after every coupling calculation, then use language fish to modify the thermal parameters.
Mechanical parameters and thermal parameters are shown in table 1 and table 2.

In the end, the analytical results simulation is applied to have better understanding of the effects of blood flow behavior over the elasticity aortic wall properties.
The purpose has been satisfied by collecting the aorta analytical data to lead an analysis of the healthy artery wall biomechanical properties.
Therefore, strain, distensibility, PWV and strain energy can spot early regional changes in aortic properties to damage elastic fibers.
The results have provided an interesting database that aims at analyzing the healthy biomechanical properties of the artery wall, as has been proposed as a predictive factor for rupture risk The present study affirms that the analytic approach adopted is a powerful tool for investigating potential effects of blood pressure in arterial geometry and wall properties on pulse wave propagation.
Correlations between transmural mechanical and morphological properties in porcine thoracic descending aorta, J. of The Mechanical Behavior of biomedical Materials. 47 (2015) 12-20

Experiment 1.1 Physical properties of raw material According to Standard for Technical Requirements and Test Method of Sand and Crushed Stone(JGJ 52-2006),all kinds of physical properties of aggregate are shown in table 1 below.
Test results and analysis 2.1 Effect of mix proportioning method and residual mortar on RAC properties.
Relationship of the Splitting tensile strength is TRCS4properties According to the experimental observation and measurement, the slump range in 40 mm - 65 mm.As the increasement of recycled coarse aggregate content, the volume fraction of residual mortar increased and the actual sand ratio decreased, which leads to the RAC slump reduced. 2.2.1 Cube compressive strength According to Standard for Test Method of Mechanical Properties on Ordinary Concrete (GB/T 50081-2002) ,we respectively tested the density of concrete, slump, and 7 d, 28 d compressive strength; then test results are shown in Table 3: Table 3 Cube compressive strength and Fresh density of concrete Mix-ID RCA content
Affect the amount of recycled pulp with the performance and strength of concrete [J].
[2] Marta Sanchez de Juan，Pilar Alaejos Gutierrez．Study on the influence of attached mortar content on the properties of recycled concrete aggregate [J]．Construction and Building Materials，2009(23)：872-877．

Silaban1,e, and Essy Arijoeni1,f 1Department of Civil Engineering, Faculty of Engineering, Universitas Indonesia, Depok, Indonesia aemail: elly@eng.ui.ac.id; bemail: ayudiamutiara@gmail.com; cemail: dodiway13@gmail.com; demail: erindappurnamasari@gmail.com; eemail: fenyacelia@gmail.com; femail: essy@eng.ui.ac.id Keywords: lightweight concrete, oil palm shell, mechanical properties, compressive strength, flexural strength Abstract.
The physical properties of the river sand are given in Table II.
The physical properties of the OPS aggregate are given in Table II.
Here's a concrete mix proportions in the study using cement water factor of 0.3.
The Mechanical Behavior of Recycled Aggregate Concrete : Material-Structural Aspect.

Ye et. al. [3] found that two major factors in the cast molding process which will affect the physical properties of the final PDMS mold, which are the vacuum degree in degassing phase and the curing temperature in solidifying phase.
The dimension accuracy of using pure PDMS mold was the worst, proving the effectiveness of carbon nanotube filling that improved the mechanical strength of PDMS.

Academichesky 2/4, Tomsk, Russia anev@ispms.tsc.ru, bgrabg@ispms.tsc.ru, cikv@ispms.tsc.ru Key words: nanostructured materials, grain boundaries, mechanical properties, creep, deformation mechanisms, grain boundary sliding.
Introduction The mechanical properties of metal polycrystals can be effectively enhanced at homologous temperatures Т<0.4Тm due to the formation of nanostructure with grain size <1 μm [1, 2].
Mechanical properties of metals in NS and CG states at room temperature.
The deformation behavior and mechanical properties of NS materials processed by SPD were investigated [1,2,39]; the effect of pre-recrystallization annealing, which causes no change in the grain size, was studied for these materials.
Naidenkin: Grain boundary diffusion and properties of nanostructured materials (Nauka, Russia 2001).

There are certain parameters which can affect the filling percentage like weight of the model, amount of printing material being deposited, how long it takes to print an object and with what speed etc.
Mechanical properties and build time depend upon the infill patterns but this aspect is often ignored.
In this work, the influence of infill patterns on the printing time and mechanical strength is investigated.
Parameters details of each sample Printing Strategy Types Build Time (minutes) Weight (grams) Stress at Yield Point (MPa) Strength to Weight Ratio (MPa/grams) Homogeneous Type-I 48 13.15 16.3126 1.24 Heterogeneous Type-II 45 11.52 14.5149 1.26 Type-III 45 11.43 12.6553 1.11 Type-IV 46 11.92 15.4448 1.30 Type-V 45 11.49 12.0494 1.05 Factors Less than Homogenous Infill Patterns Factors More than Homogenous Infill Patterns Fig. 4.
Chart for build time and strength to weight ratio As we know the material usage, build time for printing affects the cost of part and the performance of printed part depends on strength to weight ratio.

POLYMERS PROPERTIES APPLICATIONS Natural Biomaterials 1.
Growth factors essential for the promotion of hepatocyte proliferation are the epidermal growth factor (EGF) and hepatocyte growth factor (HGF) [50].
In: The Mechanical Properties of Biological Materials, Cambridge, UK: Cambridge University Press, p. 37-74, 1980
Handbook of biomaterial properties, (J.
Mooney, Delivery of hepatotrophic factors fails to enhance longer term survival of subcutaneously transplanted hepatocytes.

In actual operations, surface quality is greatly affected by a number of machining factors in high-speed end milling process.
Nevertheless, the effects of the material physical properties, such as hardness and plasticity, on surface roughness are not neglected. 0 0.1 0.2 0.3 0.4 0.50.1 0.16 0.26 0.4 a p (mm) Ra (μm) P 20 0.45%C 0 0.1 0.2 0.3 0.4 4567 a e (mm) Ra (μm) P 20 0.45%C (a).
The feed rate and axial depth of cut are the dominating factors for 0.45%C steel.
As it can be observed, the feed rate will affect the surface roughness severely among the cutting parameters.
Yuan: Experimental technology for metal cutting (Mechanical industry Press, Chinese 1988)