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The decreases in joint strength with increasing temperature is attributed to the rapid decrease in the strength and stiffness of polymer matrix when the temperature exceeds the glass transition temperature (Tg), leading to a reduction of the overall mechanical properties of FRP composites [10].
However, CFRP did not show obvious mechanical degradation in tension when exposed in seawater for one year at a temperature as high as 50°C.
In an earlier study of the authors’ group [11], the fatigue loading did not affect the bond strength any substantively even when the load ratio was as high as 0.55 and the number of fatigue cycles was up to 10 million.
It seems that the increase in temperature of the sea water within the 20-50 oC regimes is not the determining factor for failure mode.
More research is needed to separate the influence of each factor (elevated temperature, sea water exposure, pre-load, fatigue load ratio and pre-set fatigue numbers).

Its effective factors have been people's concerns.
The magnitude of the grinding force affects the deformation, the final workpiece surface quality and accuracy, which is the main reason of producing heat and vibration in grinding system.
In EDM, the physical properties of the electrode and the workpiece material have important effect to discharge loss.
[4] Li Lijun: submitted to Journal of Mechanical Engineering(1981)
One-way grinding hardened layer and its friction and wear properties predicted.

It can also exhibit a wide range of mechanical properties (strength, hardness, and other properties may be greatly altered by alloying and/or heat treatment); architectural and decorative value; corrosion resistance; non-toxicity; electrical conductivity; ease of machining, and lower shipping cost per piece.
and fi = a multiplying factor specified for each of the alloying elements [10].
Errors in the calculated theoretical density will affect the absolute porosity level in each alloy, but the relative differences in the amounts of porosity will remain constant.
Samuel, Porosity factor in quality aluminum castings.

Research Advance on the Drying Section of Paper Machine Zhi Guo Chang, Ji Xian Dong, Jiang Miao Yi College of Mechanical and Electrical Engineering, Shaanxi University of Science & Technology, Xi’an, 710021, China chzg119@163.com, dongjixian@sina.com, Yijm0911@163.com Keywords: Paper Machine, Dryer, Heat Transfer, Research Advance Abstract.
The traditional dryer exists some difficults to discharge condensate water smoothly which will bring a series of adverse factors: The thermal conductivity of the condensate water is only 1/87 of cast iron dryer wall, and its thickness is inversely proportional to heat transfer; When the condensate water discharge is not smooth, it not only greatly hinders the steam heat from dryer inner wall to pass to the outer surface and reduces the dryer of paper machine drying efficiency, but also increases the dryer surface transverse temperature unevenness phenomenon and paper disease.
Especially for high speed paper machine, it takes unique advantages of low water pressure difference and good discharging condensate water properties, and also does not require a large amount of high pressure working steam.
This dryer can make condensate water limited in channel easily discharged, but when the paper web is wide, it will cause uneven dryer surface temperature distribution and affect the quality of the paper.
The drying principle is that using the specially designed dryer with a pressure cover to increase dryer surface temperature difference, and paper dehydration uses the heat pipe principle; at the same time, the extrusion between the pressure cover and the paper on the dryer surface can increase paper strength, surface smoothness and other properties.

In high-voltage pulse equipments, switches’ properties limit the most important characteristics of the output pulse, such as delay time, repetition frequency, voltage amplitude, and so on [5].
The high-voltage pulse technology is applied more and more widely, it is because that there is some scientific significance, for example influencing factors of pulse voltage amplitude, shape, frequency, effective breakdown time and breakdown process when high-frequency voltage is applied to air-gaps between the two electrodes and so on.
In Fig. 3, R1 and R2 are connected in series to divide voltage which’s relationship is that R1 is greater than R2, and R2 is low resistance and parallels with impedance of the measuring equipment, so that the voltage ratio is affected.
(a) 250μs / grid (b) 100μs / grid Fig. 5 High-frequency and high-voltage pulse discharge waveforms of Cn Waveforms of Fig. 5 are discharge waveforms of Cn which’s frequency was 140kHz, and properties of high-frequency pulse voltage can be seen from Fig. 5.
[7] Wei Wang, Youping Tu, in: high voltage Technology, edited by Mechanical Industry Press, Beijing (2011).

Found in blank experimental conditions by a small bit of acetone was oxidized to acetic acid, and at the same condition to join allyl chloride acetone was the reaction of the amount of oxidation because the following two factors will be far less than the blank experiment.
As mentioned previously, catalyst molding not only can improve the physical properties of the catalyst (such as particle size, mechanical strength), and is likely to affect the catalyst chemical properties (such as catalytic activity and product selective, etc.).

Mohamed3,c 1Department of Mechanical Engineering, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak Darul Ridzuan, MALAYSIA 2Department of Chemical Engineering, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak Darul Ridzuan, MALAYSIA 3Department of Fundamental & Applied Sciences, Universiti Teknologi PETRONAS, 31750 Tronoh, Perak Darul Ridzuan, MALAYSIA atadimalla_v@petronas.com.my, bsuriati@petronas.com.my, cnoranimuti_mohamed@petronas.com.my Key words: Thin film lubrication, electro-kinetic flow, electro-viscosity, zeta potential, EDL Abstract.
Introduction Hydrodynamic lubrication under thin film conditions would be affected by the electric double layer (EDL) and boundary slip at the solid walls.
The flow factors were derived based on apparent viscosity to determine the load capacity for one dimensional slider bearing.
The analyses were carried out to discuss the effect of asymmetrical EDL on the properties of hydrodynamic and elastohydrodynamic lubricant films.
Spikes [7] analyzed the hydrodynamic properties of half-wetted bearing and derived the extended Reynolds equation.

Coal and gas outburst is greatly affected by tectonic soft coal development and its spatial distribution[1-4], and permeability study of tectonic soft coal is of high significance to understanding and controlling of coal and gas outburst.
An analysis of the distribution characteristics of tectonic soft coal in C13-1coal seam of Huainan coal mine area and its main control factors [J].Chinese Journal of China Coal, 2010, 36(2):72-76
Contrast test of microscopic characteristics and seepage properties of different coals [J].
Experimental study of influence of confining pressure unloading speed on mechanical properties and gas permeability of containing-gas coal rock [J].

AlON is a promising high performance multi-functional polycrystalline material, especially for military applications such as transparent armor, windows and domes due to its excellent optical, physical mechanical and chemical properties.
For CRN method, it is a practical method to prepare AlON powder commercially because the starting materials such as Al2O3 and carbon are very cheap to obtain, although it is a very complicated process that can be affected by many factors such as starting materials, atmosphere, temperature, crucible materials and impurities [8].
Li, Synthesis, microstructures and properties of g-aluminum oxynitride, Mater.

Thus it is important to improve the surface properties of the component.
This leads to surface hardening up to a limited depth without affecting the bulk material [6,7].
In this paper an attempt has been made to enhance surface hardness of the bearing steel ring by LTH process and correlate the microstructure and surface mechanical properties with processing parameters.
The resulting hardened surface was subjected to subzero treatment, tempered and aged to get the required properties.
It also becomes a factor for reducing surface hardness.