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Introduction For mechanical properties of ductile cast iron, hardness is about HB 143~217, but tensile strength is high (over 450N/mm2), so it has an effect of improving the tensile strength of gray cast iron: 300~350N/mm2max., and enhance the elongation percentage up to 20%, too, it comes to have an effect greatly replacing the existing cast steel properties.
This technique uses a mathematical tool of a table of orthogonal arrays and the technique of the signal to noise ratio to understand factors having a significant impact on experiment result and find the optimum condition.
Table 1 shows the material properties of the ductile cast iron (FCD500).
In addition, it was found that the selection of appropriate tool is a factor greatly affected by surface roughness Conclusion This study could get the following conclusion to select the optimum tool life through cutting length and surface roughness by applying Taguchi method for CBN quill design. 1.
An experiment was conducted using a Taguchi method table of orthogonal arrays, and it was found that tool and cutting speed were the greatest factor affecting the tool life. 2.

In the present investigation, the 7075Al/SiCp and A356/SiCp composite rings and LF6 Al alloy ring were produced by this technique and the influences of process parameters on the microstructure and mechanical properties were studied.
In general, there are numerous factors that influence the droplet size distribution and further affect the microstructures and mechanical properties of the preforms, include the atomizer geometry, the diameter of the metal stream, the melt superheat, the liquid flow rate, the atomization gas pressure, the gas velocity, the gas flow rate, the spray height, the scanning frequency of atomizer and etc.
Microstructure and Properties.
The mechanical properties of the as-sprayed composites are shown in Table 2.
Summary A new spray deposition technology was developed and the experimental results showed that this novel spray deposition technology is promising and viable for the preparation of metal rings with excellent mechanical properties.

China 2Department of Mechanical and Electronic Engineering Chengdu Technological University, 611730 Chengdu SiChuan Province, P.
The results show that the ratio of volume to area of the current filament and the average carrier density in the current filaments are two key factors that affect the photoionization effects of the current filaments.
The density distribution properties of the photo-generated carrier from the spontaneous emission at the tip of the filament in a special absorption region are analyzed.
The further calculation shows the ratio of volume to area of the filament, VT/ST, is a key factor to affect the radiation effect of the filament.
The ratio of volume to area of the filament and the average carrier density inside the filament are two key factors that affect the radiation effect.

Test arrangement and results: Extrusion temperature, screw speed, material moisture content and protein isolate content were determined to be the mainly studied factors with the single factor experiment.
Physical Properties of Foods[J].
Technological Aspects Regarding Specific Changes to the Characteristic Properties of Extrudates by HTST- Extrusion.
On-line measurement of rheological properties of wheat flour extrudates with added oxido-reductants, acid, and alkali[J].
Extrusion process parameters, sensory characteristics, and structural properties of a high moisture soy protein meat analog[J].

Introduction High performance polymer materials were widely employed in the mechanical moving parts of the space systems, due to their excellent mechanical properties, high strength/weight ratio, good chemical inertness and easy manufacture.
It was approved that proton irradiation could also affect the tribological properties of the PI composites [5,6].
Additionally, some scholars investigated the other radiated factors, such as vacuum, ultraviolet, and electron [7-9].
Although abundant publications about the effect of the individual radiated factor on the properties of the polymers had been reported, there seemed few researches on the sequential irradiations with AO and proton.
Wang, The effect of the addition of aramid fibers on tribological properties of the polyimide after ultraviolet or atomic oxygen irradiation, Proceedings of the Institution of Mechanical Engineers, Part J: J.

MQL oil serves both as a coolant and a lubricant, however, its lubrication properties in machining process are not well known.
The composition of the workpiece (in wt %) is presented in Table 1 and the mechanical properties in Table 2.
The factors of MQL system including oil delivery, pressure of compressed air, and location of spray nozzle have great influences on the cutting process.
The location of spray nozzle is positioned with two factors, including spray target distance with the cutter and spray angle to feed direction.
These factors are also shown in Table 3.

Introduction Risk caused by uncertain factors, because of the large scale construction project, cycle is long, numerous participants and complex technology, causing the effect of the uncertain factors on the construction project is more outstanding, risk and multiplication, so you need to implement effective risk management to reduce the risk or reduce the risk of losses, to ensure the project to reach the expected aim [1].
High-rise housing construction project construction safety risk identification In high-rise building construction engineering is used to identify the risks of the construction process, should follow the scientific risk identification procedures, as shown in Fig 1: Information collecting Determine the risk events and their consequences Classified risk factors Compile the risk list Fig.1 The flow chart of risk identification Common high-rise housing construction project construction safety risk High-rise housing construction project construction safety accident form varied, according to statistics, in recent years, the main forms of safety accidents have a fall, objects, mechanical damage, collapse, electric shock, fire, etc., concrete as shown in Fig.2.
Machinery and equipment aging or slight fault, still run use caused by mechanical equipment parts or fly out of a material d.
People throw waste cuts 3) machine, and crane accidents used in high-rise building construction is a great variety of mechanical equipment, such as excavators, cranes, processing machinery, power rotation device and derrick, etc., the site of the project construction conditions, related professional technology will affect the normal use, in the process of operation will be affected by any carelessness caused casualties. 4) to get an electric shock accident high-rise housing construction project construction site has a large number of electrical machinery and equipment and power lines, live electricity environment is relatively poor, hard to avoid because of the rain, water splash, wind and other adverse conditions cause electrical equipment failure, leakage phenomenon, causing accidents and the lack of electricity safety distance, illegal operation, safety electricity management system is lax, etc are the main factors of electric shock injuries.
The grey comprehensive evaluation method.In 1982, professor Deng Julong first put forward the grey system theory (GST) [6], in grey theory, black said the unknown information, white said known information, gray says part of the information known, some information is unknown, its core idea is: make the most of constitute the original data matrix, after transformation and bleaching to get more information, so as to explain the purpose of the evaluation object properties [6].

Experimental Studies of the Physical and Mechanical Properties of Glued Building Materials Based on Modified Veneer Ruslan R.
At the same time, a decrease in wettability of wood adversely affects its properties while the process of obtaining composite materials based on it: the adhesion of glue decreases, the pressure and pressing time increase [15, 20].
UV treatment of veneer was carried out in a climatic chamber equipped with fluorescent lamps to simulate the natural aging factors of materials.
Aydin, Activation of wood surfaces for glue bonds by mechanical pretreatment and its effects on some properties of veneer surfaces and plywood panels, Applied Surface Science. 233(1/4) (2004) 268-274
Bauchongkol, Effects of thermal treatment of rubberwood fibres on physical and mechanical properties of medium density fibreboard, J.

Hence, a desired weld size with the mechanical properties is required.
This is made often to correlate the metallurgical factors with the mechanical properties.
In addition, this test showing also the metallurgical factors relation with the mechanical properties of the weld nugget.
Therefore, the electrode pressure influences the heating by affecting the contact resistance [41].
Heat Treatments have the effect on the mechanical properties.

The results show that the wall-face connective curvature radius is the primary affecting factor of relative density increment and the wall-thickness is less significant; the solid materials added at the intersecting part of the wall-faces produce same effect on elastic modulus.
Many results of these materials elastic properties have been gained by tetrakaidecahedron model, but less study has been done by rhombus dodecahedron model.
In the current work, geometrical model with closed-cell thick edge rhombus dodecahedron is constructed, by finite elements method, the elastic modulus is calculated, and the influence of cell size and relative density on materials elastic properties is gained.
(2) Because single-cell wall-thickness is the secondary factor of relative density increment, formula (2) can be simplified as non-coupling relation that has many advantages and suffices to give enough accuracy.
Conclusions The solid materials which surface tension draws to cell-edge have influence on relative density increment, wall-thickness of cell is the secondary factor; wall-face connective curvature radius of cell is the primary factor.