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For the texturing with the type of grooves, various experiment researches had been conducted to investigate their frictional performance in given conditions including lubricated [7-9] as well as dry friction [10,11], which showed that the micro-grooves with suitable parameters could provide better friction properties.
However, it can be seen from the figure that the curve of direction angle 60° is always in the bottom, which demonstrates its optimal properties in reducing friction among all of the specimens.
The antifriction effect of surface texture depends on lots of factors such as surface area, contact type, material of specimen, lubricant and lubricating conditions.
It can be seen that the resistance reaches the maximum when the direction angle is 90° while reaches the minimum when the direction angle is 0° without considering the effect of other factors.
As can be seen from the diagram, without considering the effect of other factors, the maximum extrusion force will be achieved when the motion and groove direction are perpendicular.

The influence of preparation parameters on the properties of the coatings were investigated.
Titanium dioxide (TiO2), has specific performance in coatings, ceramics and sterilizing .Metal matrix composite coatings containing TiO2 particles exhibit interesting photocatalytical behavior accompanied by improved mechanical properties[4,5].
Reunions of nanoparticles often will lead to lose of its special physical and chemical properties.
Current density and surfactant type are the important factors affecting the properties of Ni-TiO2 nanocomposite coatings.
Study on the preparation and properties of Ni-nona-TiO2 electrode posited coating.

Add beads to cells: ① cells were first cultured with serum, then deprived of serum for overnight prior to experiment. ② add washed beads to each well, incubate at room temperature until the beads adhere to cells. ③ wash the prepared cells with beads twice using PBS, 2min each time. ④ add appropriate IT medium to each well, then measure cell mechanical properties using OMTC.
Cell stiffness increased nearly 4.6 fold after 30 minutes of mechanical stimulation.
We also found that during a persistent external mechanical stimulation, the cell’s internal structure (CSK) rearranged in response, thereby stiffen the cell, and then alter the dynamic properties of the cell.
Fig. 4 Airway smooth muscle cell from SD rat stiffens in response to external mechanical stimulation (a) vs. control without mechanical stimulation (b) 6.
Furthermore, the behavior of cell stiffening in response to mechanical stimulation suggest that mechanical factors play a key role in determining cell dynamic properties, consistent with previously reported experimental result [3, 4].

Therefore, these factors should be taken into consideration when developing a mechanical expression process for shea butter extraction from shea kernel.
Olaniyan, Effect of processing factors on oil yield of shea butter during wet extraction, Nigerian Journal of Technological Development 3(2) (2003) 126-133
Fashina, effects of some processing factors on yield of oil expressed from rubber seeds, Ife Journal of Technology 2 (1990) 1-7
Akintunde, J.C Igbeka, Effects of processing factors on yield and quality of mechanically expressed soybean oil, Journal of Agricultural Engineering and Technology 9 (2001) 39-45
Ajibola, Processing factors affecting yield and quality of mechanically expressed groundnut oil, Journal of Agricultural Engineering Research 5 (1989) 31- 43

These limitations, which limit patient's ability to walk [1,3], impact families and – without proper adaptations - may lead to restricted participation in daily life, affecting social relations and education [4,5].
Some studies [4,6,13] shared the concern about the negative impact of wearing orthoses in children, such as: pain, discomfort, circulatory impairment [8] satisfaction with the orthosis [4,13] and stiffness measured with the Bi-articular Reciprocal Universal Compliance Estimator (BRUCE), which is a recently developed device for measuring mechanical AFO properties [3,4,17].
This is a significant limitation because it doesn’t capture the complexity of environmental factors encountered at home and within the community (i.e., stairs and ramps).
It would be beneficial to include variations of these factors in the evaluation of gait.
Considering this lack of information, the different effects of AFOs on gait efficiency as reported in the literature might be partly explained by the personal and environmental factors and even by the AFOs mechanical properties, like the type of material, the coating and also the stiffness [5,12,13].

The flexural strength of combined aggregate concrete is affected by many factors, such as water cement ratio, coarse aggregate size, type, amount, etc.
ceramsite properties is shown in Table 1.
Ceramsite properties Packing density (kg/m3) 1h bibulous water 24h bibulous water Cylinder pressure strength(MPa) Grain size(mm) 840 1.43% 2.2% 8.7 5--15 Concrete Design.
References [1] Technical specification for lightweight aggregate concrete (JGJ51-2002), China Architecture & Building Press.(2002) [2] Standard for test method of mechanical properties on ordinary concrete(GB/T50081-2002), China Architecture & Building Press.(2002)
China Architecture & Building Press.(2002) [7] Standard for test method of mechanical properties on ordinary concrete (GB/T 50081-2002).

These damages alter the dimensions of the mould thereby affecting the quality of the products.
The total strain is composed of two parts: mechanical strain and thermal strain; and the mechanical strain includes elastic strain and inelastic strain.
Selection of tool materials needs to consider both the mechanical properties and the oxidation resistance.
In service, such oxidation and subsequent oxide spallation can alter the surface of the tool thereby affecting the surface quality of the components.
So improved ways should be taken to remove these detrimental factors, such as selecting new tool materials with better mechanical properties; avoiding the precipitation of brittle phases in the thermal aging treatment of tools; protecting the tools with either ceramic or metallic coatings, which, in turn, would allow the usage of low cost substrate tool materials.

This will result in a decline of the degree of vacuum of micro-cavity, thereby affecting the device performance.
By changing the size of glass grain and adding organic fillers, the properties of melted glass frit can be adjusted significantly (e.g. the melting temperature can match with the activation temperature of the getter and the CTE can be adapted to silicon).
From the experiment of CNTs transferred, the length uniformity of CNTs, the suitable heating curve and proper pressure applied are the main factors to succeed.
From the experiment of CNTs transfer, the length uniformity of CNTs, the suitable heating curve and proper pressure applied are main factors to succeed.
Tai, Field emission properties of carbon nanotube arrays through the pattern transfer process, Nanotechnology. 17 (2006) 2840-2844

The crankshaft have complicated shape, poor rigid, many factors that inner stress in blank forging or casting process and cutting force, lamping force, surface quenching in machining process make the crankshaft emerge deformation, especially the radial deformation of the crankshaft, it has a great influence for the life of crankshaft.
CATPart file into HyperMesh, defining that the element size is 1.0, dealing with 3d model by the automatic division tetrahedral mesh, establishing the constraint and the load, adding material properties parameters, selecting SOLID185 unit, exporting *.
Journal of Chinese agricultural mechanical press, 1981 [2] Guanghua Liu.
Mechanical industry press, 2010 [7] Chulin Li etc.
Mechanical industry press, 2008 [8] Rongchang Liu etc.

One of many external factors that influence the mechanical properties of CMC is the compaction pressure given during fabrication process.
Introduction Low thermal expansion coefficient and reactivity followed with hard and brittle properties of Al2O3 tend to be considered disadvantageous in its application as structural ceramic materials and armors in the military industry.
Therefore, Al2O3-based ceramic matrix composites (CMCs) with particulates, fibers, or whiskers-shaped ceramic reinforcements [1] have been developed due to its exceptional mechanical properties, including favorable toughness, resistance to high temperature and corrosion, with lower density compared to metals [2].
It is known that the applied compaction pressure will contribute significantly to the properties of green compact [9].
Porosity is indicated as stress concentrator and crack initiator [7] which can affect mechanical properties of a material.