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Their surface properties were characterized by contact angles, surface energies and XPS.
It has been envisaged for a long time as an attractive approach to obtain novel products encompassing suitable biodegradable and mechanical properties by changing the ratios of aliphatic units to aromatic ones [8, 9].
Low-temperature plasma treatment is regarded as a green and effective one for modifying the surface properties or introducing desired chemical groups at the surface of a material without affecting its bulk properties [25].
PBT-co-PBS/PEG is selected as the substrate because it is an elastomeric material which has the good properties on swelling, degradability and mechanical strength.
These properties make it suitable as the scaffold for the artificial soft tissues, such as the glands, blood vessels and derma [13].

In the current paper, the microstructural inhomogeneity and the deterioration of mechanical properties in a thin-walled telecom component made by SSM-HPDC in a low Si-content aluminium alloy were investigated.
Two typical shear bands; (a), (b) eutectic rich band and (c) porosity band Mechanical Properties.
In this study, to investigate the effect of inhomogeneity on the mechanical properties and fracture behaviour in the cast compounds, three samples were taken from location 1, 3 and 5 of each component (Fig. 1).
Increase in the yield stress value in the sample from location 5 with the finer microstructure due to higher liquid segregation (Fig. 2(b) and 2(d)), highlights the effect of microstructure morphology on the final mechanical properties.
Mechanical properties in the semi-solid state and hot tearing of aluminium alloys.

Helium-Injection Cooling of Hot Silica Glass Fiber in Optical Fiber Manufacturing System Dongjoo Kim1, Il-Seok Oh1, Ho Sang Kwak2, and Kyoungjin Kim2,a 1Department of Mechanical Engineering, Kumoh National Institute of Technology 2Department of Mechanical System Engineering, Kumoh National Institute of Technology Gumi, Gyeongbuk 730-701, Republic of Korea akimkj@kumoh.ac.kr Keywords: Optical Fiber Manufacturing, Glass Fiber Cooling, Helium Injection, CFD Analysis.
The results found that the amount of air entrainment at the unit inlet is the significant factor that decides the cooling effectiveness by significantly lowering the helium purity in cooling gas.
Also, inadequate fiber cooling could adversely affects the optical quality and fiber strength of manufactured optical fibers [2].
Since the air entrainment into the cooling unit through the inlet is inevitable and it could be significant depending on fiber drawing speed, cooling gas is considered to be the ideal gas mixture of helium and air and its properties are evaluated by simple ideal gas mixing law.
Therefore, helium purity depending on the air entrainment and helium injection is the deciding factor in cooling effectiveness of glass fiber cooling unit.

The method is validated against a variety of fuel properties and across engine conditions.
With the direct relation between the spark advance and knock; knock is a limitation that affect the ignition timing [1].
Temperature sensing techniques are simple, economical, suitable, and not affected by engine noise [7].
Consideration the factors that caused surface ignition during engine design process with using high quality lubricant and fuel can reduced engine tendency to surface ignition [8].
This prediction takes into account the cylinder's geometry, spark-timing, air motion, and fuel properties.

Microstructure and Creep Properties of Silicon- and/or Germanium-Bearing Near-α Titanium alloys T.
The effects of Si and/or Ge addition on the microstructure and creep properties at 650°C and 137 MPa were investigated in near-a Ti–Al–Sn–Zr–Mo alloys.
The present authors previously demonstrated the effects of Ge addition on the mechanical properties of a near-a alloy [2].
In the present study, the effect of Si and/or Ge addition on the creep properties of a near-a titanium alloy was investigated at 650°C.
The addition of 4.1 wt% Ge to the near-a titanium alloy changed the structure of the a/b interface; this can be a strengthening factor.

Intorduction Nano-composites, such as nano TiO2/polypropylene, polyethylene/montmorillonoid, etc., are widely used because of their satisfactory physical and functional properties.
However, experiments have shown that the practical dispersion ratio of this method is much lower than expected because the migration rate of particles onto the bubble wall is low, seriously affecting the dispersion of nano-particles.
In order to improve dispersion effectiveness of the bubble sketching-based method, we need to analyze the particle migration process theoretically and find the mainly factors which impact on the migration ratio of particles.
In such a process, particle motion is also affected by gravity and lift force.
Ren, Mechanical properties of low-density polyethylene/nano-magnesium hydroxide composites prepared by an in situ bubble stretching method, J.

This study aimed to investigate the bone integration properties as well as the cytotoxicity between the implant surface and the jaw bone.
Numerous factors can affect a successful treatment with dental implants.
Some of the important factors are the time needed for integrating the implant surface with the patient's jawbone, the effect of the implant's geometric design on the implant-bone joint strength, and the mechanical properties of the materials used in the implant [7,8].
Also, more research is being done today to improve the mechanical properties of nanostructured implants.
Pavan, "Modelling of mandible bone properties in the numerical analysis of oral implant biomechanics", Computer methods and programs in biomedicine, 1;100(2), (2010) 158-165

For preheated gasifying agent, gasifying agent property have been specified by air-steam inlet stream in RGIBBS.
Although, water gas shift reaction is affected to decrease amount of CO; which effect to the HHV of product gas.
The CGE depends on various factors, especially, HHV of producer gas and biomass fuel.
At high ER, however, gasifying agent preheating has no affected to the contents of H2 and CO.
∎{TTP}8718 S/B increase has affected to the concentration of H2 and CO decrease.

The drag-reduction of a turbulent flow over a compliant surface causes a variety of fluid-structure interactions which have been actively studied for five decades [6], but actually speaking, related experimental and theoretical work has not provided a definitive answer to the question of how surface comply with a flow state affecting turbulent drag.
Before the explanation, let’s give a review on how a dolphin skin works when swimming at flow field with different flow properties.
The challenge is of course to find a specific material with the right physical properties to achieve the desired goal [10].
(2) In order to develop a kind of compliant material with desired properties, the deformation and displacement magnitude of the surface is needed.
Fig.4 The counter gram Another factor responsible for drag-reduction can be concluded as the laminar-turbulent transition.

The amelioration of the efficiency of photovoltaic conversion in organic solar cells can be obtained by minimizing losses in reflection and absorption in the transparent electrode/active layer interface involving increased absorption efficiency in the active layer which can be achieved by the use of TCOs with special optical and electrical properties.
The properties of the films depend on three parameters which are the deposition temperature, the oxygen pressure and the deposition time.
It is obvious that these mechanisms are affected by recombination phenomena that reduce the efficiency of the solar cell which can be expressed by the following equation: ηglobal= ηA. ηTC.FF.eVmax/hυ It is observed that the efficiency depends on absorption (ηA), the charge transfer efficiency (ηTC), the fill factor FF and the ratio of photon energy absorbed with the energy extracted eVmax/ hυ.
The choice of SnO2 deposited by APCVD is based on its optical and electronic properties: - a band gap of 3.6 to 4.06 eV - a high transmittance, more than 80 % in the visible spectrum - a refractive index n of 1.75 - a good conductivity - a resistivity of 7,6.10-5 Ω.cm - a bulk concentration 2,38.1021/cm3 - a sheet concentration 2,62 .1013/cm2 - a Hall mobility of 37 cm2/V.s - good thermal, chemical and mechanical stability - a low toxicity compared to other TCOs.
Rojer, Electrical and Optical Properties of Sb:SnO2 Thin Films Obtained by the Sol-Gel Method, Thin Solid Films, Vol. 295, N°1-2, (1997), pp. 95-100.