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PLA (polylactic acid) is one of the best materials that might be able to replace slowly decaying plastics because of its similar mechanical and technological properties.
Ikada, Properties and morphology of poly(L-lactide). 4.
Alexis, Factors affecting the degradation and drug-release mechanism of poly(lactic acid) and poly[(lactic acid)-co-(glycolic acid)], J.
-B.Yang, Thermal and mechanical properties of chemical crosslinked polylactide (PLA), Polymer Testing 27 (2008) 957-963
Maazouz, Improvement of thermal stability, rheological and mechanical properties of PLA, PBAT and their blends by reactive extrusion with functionalized epoxy, Pol.

The result shows that the peak current was the most significant factors to all variable responses.
The surface of the work piece gets affected heavily because of variation in processing variables which depend on material and because of this, some adverse effects in terms of properties are observed.
These properties can vary to different levels with the variation in the main processing parameters.
According to analysis done by Design Expert software, if the value of probability (Prob > F) are less than 0.05, it indicates that the factors are significant to the response parameters.
Conclusion · All parameter selected for this experiment, peak current, pulse on time and pulse off time are significant factors.

And through the test of thermal-insulating of the material and mechanical properties, the relation equations between vitreous micro-bead content (the main agent of thermal-insulating material) and thermal conductivity, uniaxial compressive strength, confined compressive strength have been obtained respectively.
Taking into account the vitreous micro-bead is the main factor in thermal insulation factors, followed by cement intensity, the various auxiliary materials are made into additives.
The factors–level table is shown in Table 1, and the orthogonal test arrangement is shown in Table 2.
According to combine the primary and secondary order of the above influence factors with the best horizontal, the more excellent program could be put forward after a comprehensive comparison and analysis about the factors’ test results.
And it has seriously affected the workers’ operation and environmental safety.

The Processing Quality and Control Measures of the Box-shaped Piece Drawing Yuan Hongling Henan Mechanical and Electrical Engineering College, Xinxiang, Henan, P.R.
Measures to Improve the Processing Quality of the Box-shaped Piece In production, the mechanical properties, the form and the thickness of the blank, the drawing coefficient and the pressure-pad-force are the decisive factors of the forming quality of the box-shaped piece.
As one of the most important factors concerning the drawing quality, the modification of the geometry of the box-shaped piece can change the uneven sheet deformation along the blank.
Subsequently, the life of the mould and the forming quality will be affected finally [4].
Yang: Journal of Mechanical Engineering, 2010 No4, p .27 (In Chinese) [4] H.D.

By affecting the distribution of micro-cracks, the flaw changes the macro shear zone of specimens.
Due to geo-materials property of heterogeneous, before eventual failure, they suffer damage accumulation, crack initiation, propagation, interaction [2].
They find that the formation and evolution of strain localization are influenced by multiple factors including loading rate, temperature, boundary condition, initial damage and density.
These micro parameters of contact-bond and the macro properties of the corresponding reproduction are summarized in Table 1.
Chen, Mechanical behavior of rock-like jointed blocks with multi-non-persistent joints under uniaxial loading: A particle mechanics approach.

This technique requires geometry, properties and symmetric boundary conditions but don’t requires symmetry in application of assumed loads.
The two primary thermal mechanisms affecting the temperature of the clutch plates are heat generation (caused by the slipping that occurs during engagement and disengagement) and forced convective heat transfer [5].
Borozan, Automotive mechanical face seal – Tribological Simulation, Journal of the Balkan Tribological Association, 2011, pp 1-12, Vol. 17, No. 1, ISSN 1310-4772, www.scibulcom.net, Indexed in ISI Thompson Scientific Impact factor= 1.104 http://www.worldcat.org/title/automotive-mechanical-face-seals-tribological-simulation/oclc/721927839&referer=brief_results
Farkas, Calculation by Finite Element Method (FEM) of Temperature Distribution in the Components of a Mechanical Seal, Journal of the Balkan Tribological Association, 2011, pp 13-20, Vol. 17, No. 1, ISSN 1310-4772, www.scibulcom.net, Indexed in ISI Thompson Scientific Impact factor= 1.104 http://www.worldcat.org/title/automotive-mechanical-face-seals- tribological-simulation/oclc/721927839&referer=brief_results
Mayer, Mechanical Seals, ,Butterworth & Co Ltd., ISBN 0 408 00307 3, London 1977

This serves primarily to reduce the costs of production factors [2].
There are also bunker devices which separate and orientate parts using the suction principle, by drums or the use of special properties such as magnetism [19, 23].
The external influence and interference factors are caused by the environment, and are difficult or even impossible to influence.
The internal factors for the movement of the workpieces result from the design of the complete system.
Certain workpiece geometries and properties also often pose problems for the conventional technology.

Mechanical properties decreased more significantly with higher biodiesel content.
Enhanced fuel properties.
The physicochemical properties of Biodiesel and blends differ from conventional diesel, affecting engine performance.
The physicochemical properties of Biodiesel and blends differ from conventional diesel, affecting engine performance.
In practice, the choice to use cottonseed oil depends on factors such as application and environmental benefits.

Plate contacted with the punch and die, blank holder sliding, the numerical simulation processing is difficult though the process is affected by many many factors.
The anisotropy of the austenitic stainless steel is not very in evidence, so we ignore the anisotropy of the material in the simulation process, the mechanical properties of 304 stainless steel are shown in Tab.1, Plastic constitutive equation σ=1638.43ε0.6328+0•0361lnε[6].
a b Fig.6 The distributions of equivalent strain As shown in fig.6(a), fig.6(b), under the same conditions, the plastic strain zone decreases slightly with increasing of blank the size, the blank smaller, the strain in straight edge die corner greater, the shackles in the drawing processing greater. these factors result in a larger deformation regional distribution.
Influences of blank shape on deep drawing forming of rectangular box[J].China Mechanical Engineering, 2003,14(7):619-621.In China
[7] Jingang Bai.The depth flushes with 304 stainless steel plate craft develops[J].Mechanical Engineering& Automachion, 2008(5):181-182,184.In China

Because of its beautiful appearance, good physical and chemical properties, all-ceramic crown restorations are more widely used., However, due to the brittleness of ceramics and the stress mismatch between different materials, dropping or fracture phenomenon of porcelain veneer is often occurred in clinical application during the service period of all-ceramic crowns.
However, due to the brittle performance of ceramics, porcelain fracture and spalling fracture were often occurred and the use of all-ceramic restorations was greatly affected.
Meanwhile, the metal ions of the ceramic alloy not only make the porcelain prosthesis occurred fade, and some patients have metal allergies [3], the existence of these factors impels the development of the all-ceramic systems without metal basement structure.
However, the brittleness of the ceramic restoration is still the Achilles heel of restricting its application, greatly influence the reliability and stability of the material properties, also limit its features to play and practical application.
The main mechanical properties of all ceramic crown and crack germination, extension, penetrating and failure process was simulated in this paper and the results has important guiding significance for the clinical use of all-ceramic crown restoration.