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It also shows that first the HPMC-additive compatibility seems to be an interesting factor behind the variation of surface properties of HPMC formulated films, and second that formulation is an effective way to tune surface properties of HPMC biopolymer films.
HPMC films must be optimized to achieve the desired properties (in terms of moisture content, barrier properties, mechanical and surface characteristics …).
Determination of nano-adhesion properties of HPMC – PEG films.
In the present case, it is considered that the factors responsible for adhesion are the distance between AFM tip and sample surface, and the hydrophilic/hydrophobic character of surface.
Determination of nano-friction properties of HPMC-PEG films.

The energy absorption capacity of the composites were found to be strongly affected by material properties of reinforcing fibre, type of fabric structure and elasticity of resin.
* Polypox H 030 flexible *-with this component elasticity of epoxy matrix can be adjusted Table 2 Properties of matrix components used for sample preparation Sample preparation.
The differences in fibre-matrix adhesion and in fibre properties (elongation, etc), probably influenced the energy absorption.
The thickness of composites greatly affects the energy absorption capacity during ballistic impact [5, 6, 7, 8].
The number of layers as influencing factor was investigated by drop weight tests and by big bore ballistic tests.

Introduction Silicones are a family of polymers which have the extraordinary range of properties.
Select properties of the silicone as follows [7,9]: Strength and stability.
(High water repellency, extremely strong adhesion qualities, microbial resistance, anti-foaming properties, anti-foaming properties) With a low surface tension of 20.4 mN/m, silicone easily wets most surfaces.
The most prominent factors affecting these structures are the environment, pollution, and tourism.
In view of silicone water repellent properties and outstanding aging resistance, silicones are vital to the construction conservation and they are used in waterproofing treatments, mechanical seals, caulking compounds and etc.

The processes of P/M affect the properties of sintered gears.
The different techniques of P/M lead to the different properties of sintered gears.
Consistent density generally leads to more consistent mechanical properties and more consistent dimensions after sintering.
Table 1 shows the properties of this material.
This processing offers the mechanical properties of a high-density part, the surface fatigue resistance of a wrought part, and potentially the low cost inherent to P/M processing(Fig. 9).

Through such composition, this FRP-concrete composite deck for cable-stayed bridges takes full advantage of the properties of each material and provides durability and lightweight.
Table 2 lists the mechanical properties of FRP panel used for the specimens.
Furthermore, if strength reduction factors of 0.55 and 0.85 are applied respectively for the FRP-concrete composite section and for the reinforced concrete section in the 2-side supported specimen, the FRP-concrete composite deck for cable-stayed bridges satisfies the flexural design moment as shown below.
This reveals that the unavoidable low sectional rigidity of the FRP panel in the transverse direction due to the pultrusion process is not affecting significantly the performance of the deck.
This reveals that the unavoidable low sectional rigidity of the FRP panel in the transverse direction due to the pultrusion process is not affecting significantly the performance of the deck.

However, the material chosen must be according to the desired mechanical properties and the application [4].
The mechanical properties for all specimens from tensile test are listed in table 1.
However, in this case the behavior of lamination varies with several factors such as fiber volume fraction, matrix material, fiber material and manufacturing processes [14].
Coutinho, Mechanical Properties of Polymer Composites based on Commercial Epoxy Vinyl Ester Resin and Glass Fibre, Int.
Maleque, Mechanical Properties of Epoxy/Coconut Shell FillerParticle Composites, The Arabian Journal for Sciences and Engineering 28 (2003) 171-181

Based on the condition of comprehensively considering the nonlinear factors, such as backlash helical gear transmission, time-varying meshing stiffness and composition error, a coupled nonlinear dynamics model of the multi-DOF bending - torsion - axis - pendulum helical gear is built in this paper, and on the basis of the "piecewise linear" backlash function, getting backlash function that is fitting for helical gear transmission system meshing characteristics through high order fitting.
Introduction Gear transmission system is one of the widely used mechanical transmission devices, its mechanical behavior and performance has an important influence on the whole machine, thus, it occupies an important position in the mechanical equipment.
Due to backlash, integrated error, time-varying mesh stiffness, support gap and other factors in the gear transmission system, it leads to a gear system becoming a strong nonlinear system.
For judging and preventing various problems in the later stage of gear transmission system and the engineering practice, it has important theoretical significance to know the change of the mechanical properties.
Establishment of the Bend-Torsion-Shaft-Pendulum Coupling Nonlinear Analysis Model of Helical Gear By considering the meshing characteristics of helical gear, and then combined with the premise of the influence factors of helical gear transmission system, the bending-torsion-axis-pendulum coupling nonlinear analysis model of helical gear is established.

Friction stirring typically induces microstructural changes and grain refinement, affecting the processed material's constitutive response.
In terms of mechanical properties, FSW can result in desirable microstructures as it can produce refined equiaxed recrystallized grains, and it allows for controlling the residual stresses during the welding process [4], [7].
However, the effect of friction stir on materials' high-strain-rate properties remains insufficiently characterized or understood, though it might be significant.
Several factors may contribute to this observation.
Miller, “Effect of friction stir welding on dynamic properties of AA2024-T3 and AA7075-T7351,” Welding Research Supplement, vol. 80, pp. 196–200, 2001

Introduction Since the discovery of carbon nanotubes in 1991 by Iijima [2], numerous experimental, theoretical, and computational investigations have been performed to investigate their superior and unique chemical, electronic and mechanical properties.
Owing to these extreme properties, carbon nanotubes are ideal candidates for NEMS, which open up a vast area of potential applications such as pressure and mass sensors, nanotweezers, RAMs, and actuators [3, 4].
The applied gate voltage bends the nanotube and affects both the nanotube’s electrical and mechanical properties (See Fig. 1 for a schematic).
The applied gate voltage pushes electrons inside the nanotube downwards by the electrostatic force which alters the nanotube’s mechanical properties.
Hierold, From micro to nano systems: Mechanical sensors go nano. 14 (2004) 1-11

The critical distance method with the stress concentration factor around the aperture can accurately predict the fatigue life. 1.
The structure of turbine blade is complex, the existence of film-cooling hole seriously reduces the overall performance of the structure, and the arrangement and diameter of hole have a significant impact on the cooling efficiency and mechanical properties of the turbine blade.
The critical distance method with the stress concentration factor around the aperture can accurately predict the fatigue life.
[5] Liu D S, et al, Tensile Property of a Modeling Specimen of DD6 Single Crystal Cooling Turbine Blade [J] Rare Metal Materials and Engineering, 2012, 41(8):1362-1366
Journal of Mechanical Engineering, 2013:59-66