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Fig.3: AFO with air chamber The mechanical properties of the polypropylene sheet that use in manufacturing AFO orthosis are listed in table 1.
Abdullah,Mechanical Properties Of Polymer With Different Reinforcement Material Composite That Used For Fabricates Prosthetic Socket, Journal of Mechanical Engineering Research and Developments (JMERD).42(2019)118-123
Peijs, Effects of environmental conditions on mechanical and physical properties of flax fibers, Elsevier, Part A 32.(2001)1105-1115
Pagar,Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications , Polymers.11(2019)1-37
[11] American Society for Testing and Materials International ,Standard Test Method for Tensile Properties of Plastics,D 638, 2000

The vehicle weight and the wheel radius directly affect the motor specifications regarding speed and torque capability.
The utilized Permanent Magnet (PM) material’s properties and its operational characteristics were also taken into account.
(b) Active length- air-gap diameter relationship and (c) Magnetic material properties The number of poles was dictated by the need for a high speed range operation and the need for relatively low supply frequency in order to minimize iron losses, considering also the higher harmonics in supply voltage and current due to the inverter operation.
The mutation factor was set equal to F=0.85 and the crossover probability was set equal to FCR=0.8.
Its nominal efficiency was estimated, neglecting mechanical losses, over 92%.

Introduction Bismaleimide (BMI) resins, as a kind of high-performance materials, have received more and more interest because of their good thermal stability, low water absorption, and good retention of m -echanical properties at high temperatures.
Although there are many reports about how to improve its performance such as, but fewer attempts have been made to research its rheological properties and curing reaction behavior.
(3) Where η∞ and k∞ are the Arrhenius pre-exponential factors, respectively, Eη and Ek are respectively the activation energies for the flow and the curing reaction, R is an ideal gas constant.
Sci. 45(2010) 1859-1865 [2] Sunxin Zhu, Aijuan Gu, Guozheng Liang, Yuan Li, Dielectric properties and their dependence of polyetherimide/bis -maleimide blends for high performance copper clad laminates, J.
[7] Tang H, Li W, Fan X, etal, Synthesis, preparation and properties of novel high-performance allyl–maleimide resins, Polym, 50 (2009) 1414-1422

Xue Liping et al [3] analyzed the closure of roll pass in Accu-Roll mills, and pointed out that it is affected by the guide disc location.
Description of the model The size of pierced shell is 155×9 mm, and the material of pierced shell is C22, which is read from MSC.Superform database including the mechanical and thermal property of the material.
The frictional factor at the interface between the piercing roll and workpiece is given as m1 =0.7; at the interface between the guide disc and workpiece the frictional factor m2 =0.5; and that at the interface between the plug and workpiece is given as m3 =0.2.
Considering above factors, the film coefficient to environment takes 0.18 kW/(K × m2), and the contact heat transfer coefficient takes 25 kW/(K × m2) [4].
The force parameters are affected by lots of factors such as steel grade, tube size, temperature and rate of deformation, elongation coefficient, mill setting (tools and the adjusting parameters), etc, and each parameter’s effect is complicated.

The most important factors that affecting fuel consumption of vehicles are vehicle technology, running environment and the use of vehicle[5].
It has already damaged the environment seriously and affects people's daily lives.
All the three factors increase, hence, fuel consumption pre unit time increase too.
To be detail, emission factor HC is 0.9 g*km-1, CO is 9.3 g*km-1, NOx is 0.4 g*km-1.
Mechanical Design and Manufacturing,(3)2008

Introduction The mechanical optimization design is one of modern design methods, which is based on the mathematical, a computer as a tool, and to find the optimal design.
It is a novel design approach, which is under the given load or environmental conditions and constraints within the limits of the range of the gears of state, the relationship between the geometry or other factors to select the design variables, establish objective function and then calculate an optimal value through computer programming[1].
The Determination of Design Variables According to equation (1) and (2), there are too many parameters that affect the quality of helical gears transmission.
In order to reduce the computing time and improve computational efficiency, the author need to select some parameters that influence the gear structure and properties more as the design variables.
Mechanical Research & Application, 2009(1):47-48,54 [4] Ying Wang, Sanmin Wang, Jiashun Guo.

It is founded that the processing time is the most remarkable influence factor on the material removal and the depth of the holes.
With the advantages of no change in the mechanical, physical and chemical properties, no heat-affected zone, good quality incision, no spark, no pollution, centralized energy, this technology become one of the most important basic precision micro-machining technologies, for the processing of brittle materials, rigid high reflectivity materials and many small geometric surface of mold, where laser thermal processing technology can't be used [1].
And the increase in working pressure doesn't affect the basic shape of hole while the abrasives get greater momentum and increase of the erosion at the same time.
Processing time Processing time is the most notable factor on the growth of material removal among various technical parameters of MASJ.
Conclusions The effects of processing conditions have been discussed; it is found that the most significant factor to increase the material removal of glass is the processing time.

The buckling and surface friction properties of hairiness fiber are the basic factors for tactile perception [1].The shape and mechanical properties of hairiness fibers on surface directly affect the contact force[2], however, the brain function of tactile perception for the soft fibrous surface is unclear, especially with local skin temperature changing.

Determination of Growing Direction of Fatigue Crack Yao DAI1, a , Wei TAN 2, b, Chang-qing SUN 1 and Jia-wen HE3, c 1 Department of Mechanical Engineering, Armored Force Engineering College, Beijing 100072, China 2 Department of Materials and Engineering, Armored Force Engineering College 3 Department of Materials and Engineering, Xi'an Jiaotong University, Xi'an 710049, China a yao_dai@yahoo.com.cn , btw050400@vip.sina.com, c jwhe@xjtu.edu.cn Keywords: Interfacial crack; Non-homogeneous material; Crack growing direction; Wedge-shape model; Method of arbitrary lines.
It is well known that it is unreasonable to take the interface as a traditional ideally geometrical interface with discontinuity or jump of material properties.
FEM, BEM, MAL, are usually adopted to determine the stress intensity factors or the tip fields of the interfacial cracks.
It is very difficult to determine the crack growing directions accurately due to the limitation of the element properties.
The rectangular domain consists of base material (BM), heat-affected zone (HAZ) and welding material (WM).

It was found that structural properties distribution of a non-uniform blade affected its dynamic response [5].
The employed trial functions were the exact mode shapes for a uniform blade with the integrated average properties [3].
By performing dimensional analysis on all factors, two dimensionless numbers are obtained.
It should be noted that the blade dynamic response is affected by the nature of the blade properties distribution as can be seen in the difference between the uniform and non-uniform blade plots in Fig. 3.
Fig. 2 Blade properties distribution.