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For the above reasons the frost formation becomes one of the most important factors deteriorating the performance in the refrigerating system.
Kim et al. [10] proposed dimensionless correlations of frost properties on a cold cylinder surface.
-S. (2004), Dimensionless correlations of frost properties on a cold plate.
[8] Barzanoni,Y,Tabrizi B H, Noorshams O,. (2012), Correlation for frost properties on a cold cylinder surfaces in cross flow.
-S., (2008), Dimensionless correlations of frost properties on a cold cylinder surface.

INTRODUCTION Silicon nitride (Si3N4) based ceramics are leading candidates for hightemperature structural applications because of the superior physical and chemical properties such as high-temperature strength and corrosion resistance [1].
However, these ceramics are inherently unstable in oxidizing atmospheres because of several factors such as temperature, porosity, impurity, type and intergranular phase content and humidity, affecting the oxidation rate at high temperatures [2-5].
Most of the previous works reported that plots of weight gain versus time approximate a parabolic behavior [3,6] The additives are extremely important for the success of the sintering, and consequently, for the improvement of the mechanical properties and the oxidation behavior.
Several additives, such as MgO, Y2O3, Al2O3, SiO2 and rare earth oxides, have been studied in the attempt to optimize the process and to adapt the microstructural characteristics to the intended properties.
The substitution of Y2O3 by CRE2O3 resulted in comparable results of the densification, microstructure and mechanical properties [8-10].

The predictions indicate that recrystallization affects the resistance of the material during hot rod rolling.
Introduction During hot rolling, the product's mechanical properties are influenced by the changes of its microstructure.
The yield stress, one of the variables in these predicted equations, is affected by product's chemical composition and its microstructure evolution.
Initial Section Final Section Fig.1 Equivalent rectangle approximation to round-oval pass rolling The microstructure evolution affects the rolling force through recrystallziton of softening.
(4) while the B2 is a correction factor, in round-oval pass rolling.

Microgrinding with Diamond Electroplated Tools and with Single-Disk Lapping Kinematics Adam Barylski a, Mariusz Deja b * Gdansk University of Technology, Mechanical Engineering Faculty Department of Manufacturing Engineering and Automation 11/12 Narutowicza Str., 80-233 Gdansk, Poland aabarylsk@pg.gda.pl, bmdeja@pg.gda.plmail, * corresponding author Keywords: abrasive machining, lapping kinematics, finishing processes.
Achieved results confirm the low abrasive properties of the worn tool.
References [1] Barylski A., Deja M., Heinrich M., Hoghe T., Ikken B., Uhlmann E.: Grinding of cemented carbides with planetary kinematics, Developments in Mechanical Engineering, 2009, Vol. 3, pp. 65-71
[5] Sanchez L.E.A., Jun N.Z.X., Fiocchi A.A.: Surface finishing of flat pieces when submitted to lapping kinematics on abrasive disc dressed under several overlap factors, Prec.
[8] Upadhyaya R.P., Fiecoat J.H.: Factors Affecting Grinding Performance with Electroplated CBN Wheels, CIRP Annals - Manufacturing Technology, 2007, Volume 56, Issue 1, pp. 339-342

The studies of Ahari show that, during severe earthquakes, the most important parameter affecting the uplift response of unanchored tanks is the behavior of their bottom plates.
Tank wall and tank bottom chose Q345 steel, and the unit is Shell181, elastic modulus is 203GPa (average measured value of experimental mechanical properties), the density is 7850kg/m3.It is set as linear boundary conditions at the bottom of the tank.
The main reasons causing these differences are as follows: a) As a thin-walled container of fluid-structure interaction, strictly speaking, its frequency is not a simple linear model frequency, but a nonlinear modal frequency caused by the factors such as boundary nonlinear and the real-time changing stress state.
b) A variety of factors are considered together in earthquake simulation experiment, which simulate the dynamic response of real tank under seismic excitation.
Process Mechanical Engineering, Vol. 223(4), (2009), p. 225-231

The results revealed that the structure of the Ti-O films affect their adhesion dramatically.
Introduction Vascular stent has been an effective therapy for coronary artery disease [1-6]. 316L stainless steel is one of the popular materials used to make stent due to its excellent mechanical property.
One factor resulting in restenosis is that the surface of naked stainless steel induced thrombosis [6].
Therefore, the film must have reliable mechanical properties besides good blood compatibility.
stent possesses good adhesion and mechanical property.

Thixo-forming products of two alloys are fine with smooth appearance, good microstructures and properties.
Results and discussion Microstructures of semisolid billets and influence factors Fig.2 shows the appearance and inner surface of semisolid billets of AZ91D alloy prepared by semi-continuous casting.
Vibrating amplitude can greatly affect microstructures of the alloys.
Thixo-forming products of Al-6Si-2Mg (wt-%) and AZ91D alloys are fine with smooth appearance and good microstructures and properties, as shown in Figs.6 and 7.
Thixo-forming products of two alloys are fine with smooth appearance, good microstructures and properties.

Transition metal dichalcogenides (TMDCs) nanomaterials, in particular Molybdenum disulfide (MoS2), have been employed frequently as a basis for flexible gas sensors due to their extreme sensitivity to gas molecules, super mechanical and electrical properties, and large surface area.
Results and Discussion For sensors based on MoS2, most reports have shown that the difference in the main factors in the preparation affects the way the sensor responds to the target gas [21, 22].
The sensitivity is described the smallest disruption of properties that causes a noticeable change.
Therefore, the gas sensor's performance can be improved by adjusting the sensing material with specific properties.
[14] Vargas-Bernal, R., Electrical Properties of Two-Dimensional Materials Used in Gas Sensors.

They have shown to have a high biocompatibility, but they can not be used due to their rigid geometrical structure and mechanical properties.
Among the growth factors tested were: recombinant human platelet-derived growth factor- AB, hepatocyte growth factor/scatter factor, and bone morphogenic protein-2.
The biomechanical properties of the two artificial menisci have not been fully studied.
The viscoelastic properties in both artificial constructs were different compared with the animal and human samples.
[24] Haut Donahue TL, Hull ML, Rashid MM, Jacobs CR, How the stiffness of meniscal attachments and meniscal material properties affect tibio-femoral contact pressure computed using a validated finite element model of the human knee joint, Journal of biomechanics, 36 (2003), 19-34

Recent years, many model scale experiments[1,2,3,4,5] are the state of the art prediction method studying ice mechanic properties.
Lindqvist[6](1989) divided ice resistance into different components and influential factors based on the physical analysis.
Multi-surface failure criterion for ice The mechanical behavior of ice varies with different strain rates.
Calculation Results With the established environment model, use the Modified DYTRAN to calculate the time history response. 4.1 Ice and ship characteristics Ice properties differ with the region.
“A review of the engineering properties of sea ice”, Cold Regions Science and Technology, Vol.60, 2010, pp.107-129