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Gel of aloe vera also exhibits good wound healing properties [3].
Tensile strength and elasticity: Mechanical properties were performed on a tensile testing machine (Narin Instument, Thailand, equipped with the software version 3.9) with a crosshead speed controlled at 10 mm/minute and a 100 kg loaded cell [5].
The physical properties of these films were shown in Table 1.
All film formulas exhibited good film properties at initial time.
These films exhibited the good properties in strength, elasticity, adhesiveness and hydrophilicity properties.

Emphasis is on the use of bio-compatible metals, because metals are the most suitable materials in terms of mechanical strength when the requirement arises for supporting and replacing the load bearing bones and joints such as hip and knee.
Therefore, DMD offers building up of complex metallic structures with controlled material, micro-structural and mechanical properties directly through CAD models, without additional tooling [7].
It is possible in a DMD process to generate structures with controlled properties at micro and macro levels without significant heat treatment since the laser creates a very small heat affected zone.
Glassman, Porous Coated Hip Replacement - the Factors Governing Bone Ingrowth, Stress Shielding, and Clinical Results, The Journal of Bone and Joint Surgery 69-B (1987) 45-55

The finishing procedures (Unglazed, self-glazing, mechanical polishing, mechanical polishing + glazing, and glazing) were tested using an in vitro assay.
The surface roughness has been thought to be a very important factor in determining the amount of plaque accumulation [4].
In the dry weight of plaque, there were significant differences between unglazed and mechanical polished, glazed and mechanical polished (p=0.000), mechanical polished + glazed and mechanical polished (p=0.003), self-glazed and mechanical polished (p=0.009), self-glazed and glazed (p=0.005), mechanical polished + glazed and glazed groups (p=0.015).
Properties of the hard surface as well as the adhesive properties of the bacteria influence these mechanisms.
Conclusion The surface roughness significantly affects plaque accumulation.

Introduction Renewable energy is one of the important factors to create a sustainable world due to depletion of world petroleum reserves, unstable in crude oil price and environmental deterioration due to fossil fuel burning.
Nowadays, biodiesel is commercially being used with a goal to decrease the dependency on fossil fuel, reduce the greenhouse gases due to biodiesel has similar properties as petro diesel and is considered as clean fuel [1].
Variables affecting the yields of fatty esters from transesterified vegetable oils.
Journal of Mechanical, 32(2011), 61-72
Factors affecting biodiesel production.

A study of ore-controlling factors and metallogenic mechanism of lead-zinc deposit in LuZiYuan, Zhenkang, Yunnan Changliang Lv1, a, Mingguo Deng1,b and Lei Zeng1,c 1.Faculty of land resource engineering Kunming university of science and technology Kunming 650000 ,china a149300864@qq.com, bbamboolv727@163.com, c657441108@qq.com Keywords: Lron-lead-zinc polymetallic deposit in LuZiYuan, wall-rock alteration,ore-controlling structure, source of ore-forming material.
Affected by regional tectonic movement, fold and fault develop, mainly in Zhengkang anticlinorium and NE, NW faulted structure.
The angular gravel has a certain property of tenso-shear by roundness, and the cements are in directional alignment.
Conclusions Based on based on the analysis of the geological characteristics of deposits, the paper analyzed the main factors controlling mineralization and the spatial occurrence regularity of ore body from the macroscopic and microscopic, this paper, and draws the following conclusions: Ore body is mainly produced from carbonate rocks and chlorite quartz schist in Shahechang group in upper Cambrian.
A tentative analysis of The orecontrolling factor of the Luziyuan lead-Zinc deposit in Zhenkang area,Yunnan[J].Geological Bulletin of China,2001,30(7):1137-1146 (In Chinese)

On the one hand, the air gap formed between the casting and the mould during solidification of the melt leads to the complexity of heat transfer; on the other hand, the heat transfer between the casting and the mould is affected by many factors that are difficult to quantify, such as enclosed strength on spindle, the geometry of the casting, and the roughness of the contact surface.
Meshing of two-dimensional models for calculation 3.3 Thermal properties and boundary conditions In order to accurately simulate the cooling process, it is of primary importance to obtain accurate thermal parameters of castings and moulds[9].
This method is simple in concept and is suitable for general one-dimensional two-dimensional models with temperature-related physical properties.
This gap significantly reduces the heat flow between the casting and the mould, affecting the internal grain growth rate of the casting.
During the actual casting cooling process of molten tin, due to the great difference in temperature and thermal properties between the casting and the refractory mould, the heat of the surface after liquid tin filling is rapidly diffused into the refractory mould, and then the heat is slowly diffused through the mould and the insulating medium.

Guo1,c 1 Department of Mechanical Engineering, Baoji University of arts and science, Baoji 710016, China ahanyuqiang62@163.com, blfz1010@sohu.com, cgguo2006@126.com Key words: industrial overlock machine, multiple-bar linkage, kinematic analysis, the method of successive approximation of link length Abstract.
Introduction The differential feed mechanism of overlock machine have to carry out complicated movements to suit a wide variety of elastic properties of different fabrics, by which the application range of the machine could be expanded.
Feeding is only affected by needle range.
The mainly factors which can affect that is the needle spacing mechanism.
Chinese Journal of Mechanical Engineering, Vol. 17(1981) , p. 68-76.

Then, performance degradation process of gas turbine system for different factors was analyzed.
The results showed that: (1) An equivalent method on contact stiffness of turbine interface was presented, pretightening force is reducing as the result of stress relaxation, that affects contact stiffness of turbine interface
Changes of Material Properties and Life Management of Steam Turbine Components under Long Term Service[J].
Contact Stiffness of Rough Mechanical Joint Surface[J].
Modern mechanical dynamics and engineering application[M].

Numerical simulation of differential injection molding based on Moldex 3D Lilei Miaoa，Pengcheng Xieb, Panpan Zhangc and Weimin Yangd College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing 100029, China amiaoxinyu@163.com, bxiepengcheng@gmail.com, cpeterpan9152@126.com, dyangwm@mail.buct.edu.cn Keywords: differential injection molding; melt pump; filling length; theoretical basis Abstract.
Introduction Kim[2] carried out a study on the effect of thermo-physical properties, relative humidity and stiffness on the warpage of a PMMA diffusing plate modified with glass fibers in a direct-lit backlight unit of a liquid crystal display.
Conclusion This study is to find the factor affecting the filling volume during the filling stage.
The single factor experimental simulation shows that the influence degree of process parameters on filling volume can be ordered in melt temperature > mold temperature.
China Mechanical Engineering. 13 (2002) 592-596

During start-up of a hydrotronic system under thermal shock conditions elements of hydraulic components warm up in a non-uniform way, due to varying material and shape properties.
Determination of the Clearance Height in Cooperating Elements of Hydraulic Components During Start-up under Thermal Shock Conditions [4, 5] During start-up of a hydraulic system under thermal shock conditions elements of hydraulic components warm up in a non-uniform way due to varying material and shape properties.
The changes of clearance magnitude between cooperating elements of hydraulic components during actuation of device in aforementioned conditions depend on many factors, i.e.: load, ambient and oil temperatures, oil flow rate.
It is possible to evaluate the effective clearance during start-up period (τ) of the frozen component, on the basis of equation: )()()( ττ τ t pm e llll ∆−∆+= (1) Oil pressure affects both movable and immovable elements of the hydraulic component and generates deformation.
Jasiński: Methods of determination of correct operation area for hydraulic component in low ambient temperatures, Developments in Mechanical Engineering, vol. 2, Gdańsk (2008) [4] R.