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Their crystalline structure, film surface morphology and optical properties, as well as anticorrosive behavior, were investigated.
The optical properties were determined by spectroscopic ellipsometry (SE).
The sputtering chamber was pumped down to 2 x 10-6 Torr by mechanical pump (ALCATEL) and turbomolecular pump (Shimazu, TMP-803-LM) cooperated.
In conversely, at low deposition rate, the sputtered atom gets to the substrate with low kinetic energy which affect to low mobility on substrate surface.
The operated pressure during sputtering process provides the significant factor on film morphology, optical property and anticorrosive behavior of Ta2O5 thin film.

Fire Computer-Simulated Fire Scene Verification of Entertainment Establishments Cherng-Shing Lin1, Te-Chi Chen2 and Tai-Yi Lee 3 1~3 Department of Mechanical EngineeringYuan Ze UniversityTaoyuan, Taiwan 32003, R.O.C email:mecslin@saturn.yzu.edu.tw Keywords: Fire protection, Smoke, Numerical simulation, Pub Abstract.
In the past 30 years, many cases of serious fires have occurred in entertainment establishments in Taiwan, causing numerous casualties and significant property losses.
The results discussions indicate that hazard factors, such as high temperatures and thick smoke at the fire scene, significantly affected the personal safety of evacuees.

The highest physical and mechanical properties (compressive strength 45-65 MPa, softening coefficient 0.65-0.70) are possessed by the samples made from the mixtures containing 60-80% gypsum binder, 20-40% sludge and 2% monoammonium phosphate.
The samples made from the mixtures containing 10-15% silica fume possess the highest physical and mechanical properties: compressive strength 60-65 MPa, softening coefficient 0.78-0.84 [15].
However, it should be noted that for any combination of the listed prescription and technological factors, the softening coefficient of the studied materials is closely related to their open porosity [17].
The property. 8 (2) (2018) 73-83.
The property, 10 (1) (2020) 68–75.

In literature[8],the thermal analysis of a model was performed using ANSYS, and then the related mechanical parameters were analyzed, which would affect the mechanical properties of microbridge, but it didn’t give the final optimized model and related parameters of properties.
The support layer forms the bottom of microbridge legs, and it must have good mechanical strength.
Si3N4 has a larger yield/fracture strength(14Gpa), proper thermal properties(lower thermal conductivity and specific heat) and high electrical resistivity, while SiO2 has lower thermal conductivity than that of Si3N4 and high electrical resistivity.
However, we should take a comprehensive consideration of microbridge’s thermal conductivity and pixel filling factor.
Regarding this situation, the mechanical strength of designed microbridge should be sufficiently good.

The benefits of the method are simplicity and fast process as well as the low-cost processing/materials that were needed to produce porous ceramics with controllable physical properties.
Properties of porous ceramics can be controlled not only by varying slurry composition but also by managing the foaming process.
Porosity is a decisive factor for the mechanical properties of porous materials.
The physical properties of ceramics were controlled by varying yolk and dispersant concentrations.
Several advantages this method are pore creating can be done at low temperature (180°C) and allow to control properties of porous body such as shrinkage, density, porosity and mechanical strength by regulating the slurry composition or foaming condition.

In the works it is noted that the reduction of processing errors leads to an increase in reliability and durability, and also improves the performance characteristics and functional properties of the product [43-50].
Gusev, Spindle Rigidity in Milling Blanks with Nonuniform Properties, Russian Engineering Research, 33(11) (2013) 646-648
Gusev, Safe machining of blanks with nonuniform properties Russian Engineering Research, 33(10) (2013) 602-606
Zakharov, Mathematical models for estimating the degree of influence of major factors on performance and accuracy of coordinate measuring machines.
Glezer, etc., Microstructure and wear properties of Hardox 450 steel surface modified by Fe-C-Cr-Nb-W powder wire surfacing and electron beam treatment, IOP Conference Series: Materials Science and Engineering, 411(1) (2018) [65] S.

Introduction Wrought aluminum alloy 6061 own the property of middle strength , good processability and welding performance.
The research of different welding sequence of T welding joint was studied by Liam to obtained the best welding sequence and they discuss the influence of welding stress and deformation exerting on the mechanical properties[5].
The simulation of deformation using thermal elastic plastic finite element method ,which takes account of many material nonlinear factors, makes results more directly and easy to facilitate comparison analysis.
Operating environment of Abaqus In the Thermal elastoplastic analysis, it is assumed that the material obeys to Von Mises yield criterion hen yield occurs[13], in which the change of temperature-related mechanical properties, stress and strain in small time increments can be regarded as linear and the effect of the inertial force can be ignored.
(2) The first welding path affect the value of the residual stress in a particular direction during rectangular welding.

In technical applications especially in the production of tools and measuring instruments, there is a continual improvement of physical and mechanical characteristics, material strength and hardness.
The use of modern grinding materials of cubic boron nitride and diamond for grinding of tools increases nowadays. [3], [5] Tab. 1 Characteristic properties of abrasive materials Property Unit Type of material Diamond Cubic boron nitride Synthetic corundum Density g.cm-3 3.52 3.48 3.21 Mohs scale hardness - 10 9.6 9.5 Knoops scale hardness MPa 50.0 – 87.0 45.0 – 47.0 23.5 – 26.5 Temperature of melt °C 2727 2350 2827 Thermal conductivity W.m-1.K-1 140 35 - 120 10 - 15 Cubic boron nitride cannot be found in nature.
Its properties are similar to those of diamond.
Cutting forces strongly affects the quality of the functional working surface.
Abrasive material affects cutting force size and also preload of technological system and repeatability of product precision.

Experimental Program Preparation of Specimens and Material Properties: A series of eighteen concrete cylinders with a diameter of 155mm and 300 mm in height were cast using PVC formwork at laboratory environment.
The material properties of CFRP reinforcement and epoxy are shown in Table 2.
Axial Strength b [N/mm2] Enhancement [%] Secant stiffness Failure mode 100U 480.77 25.48 47 190.73 Crushing of concrete 100R *902.95 *47.85 *217.15 Crushing of concrete with CFRP rupture 200U 435.00 23.05 51 197.73 Crushing of concrete 200R 889.83 47.16 203.45 Crushing of concrete with CFRP rupture 300U 468.80 24.84 49 236.11 Crushing of concrete 300R *913.90 *48.43 *180.54 Crushing of concrete with CFRP rupture a All tests were performed in triplicate b These values were the average value of three specimens * These values is the average of two specimens since one of the specimen did not failed Table 2 Material properties of CFRP and epoxy MBrace CF130W CFRP Epoxy Tensile strength 3,482 N/mm2 Compressive strength 50 N/mm2 Tensile modulus 230,500 N/mm2 Tensile strength 39 N/mm2 Ultimate elongation 1.5% Flexural strength 62 N/mm2 Thickness 0.165 mm Modulus of elasticity 2,400 N/mm2 Heating Regime: These prepared concrete cylinders were placed inside the electric furnace
Apart from that, there are many other factors which could affect the spalling of concrete such as pore-structures of concrete (i.e., high strength concrete, normal strength concrete), moisture content, rate of heating, and specimen configuration (i.e., concrete mixtures with silica fumes or admixtures to enhance its performance) [4].
Jiang: Effect of thermal shock due to rapid cooling on residual mechanical properties of fiber concrete exposed to high temperatures Construction and Building Materials Vol. 22 (2008), pp. 948-955

The shape and structural characteristics of slope, mechanical properties of soil and engineering geology are internal cause of slope failure.
Taking all this factors into consideration, the stability is generally fine.
The high weathered degree changes the physical and mechanical properties of rock mass, and makes the strength of basalt decreased.
Strong weathering is a main factor to the stability of foundation pit.
In addition, the groundwater affects the rock mass quality.