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Usually Intumescent flame retardant contains three types of components which are agents, carbide catalyst and expansive agent, more than ever, of ammonium polyphosphate (APP), polyol and melamine composite components; the disadvantage is prone to alcohol between polyol and APP The decomposition reaction, and the polyol itself is easy to absorb moisture, which affects the properties of the materials.
Catalytic intumescent flame retardant can promote degradation, reducing thermal degradation of the speed of the substrate, increase the amount of carbon residue of the substrate, i.e. combustion formed in the substrate surface, the carbon layer of the oxygen barrier of a layer of insulation, charring agent added not improve the amount of residual carbon, able to promote the formation of the carbon layer, and to improve the quality of the carbon layer, and plays an important role for the improvement of flame retardant properties of flame retardant material Formulations of different flame retardants and fire-retardant material consisting absorbent experiment found that the char-forming agent to be added to improve the water absorption of the flame retardant material, but did not increase, and still meet the requirements of use of the humidity condition.
The mechanical properties of different flame retardant formulations and the composition of the flame-retardant material, flame retardants added deterioration of the mechanical properties of the matrix, charring agent added, have little effect on the mechanical properties, mechanical properties from The main factors in the APP.
Instrument: a three-necked flask, reflux condenser, thermometer, mechanical stirrer, regulator, oil bath, iron sets, rubber tubes, catheters, beakers, vacuum drying oven, the 1710 type Fourier transform infrared spectrometer, WC 21-type display micro melting point apparatus, Shanghai Optical Instrument Factory.
Reactive material ratio of the yield Reaction temperature n (PDD) / n (melamine) Product quality Yield 1:2.2 1:2.4 1:2.5 1:2.6 1.4 1.5 1.7 1.5 66.2% 71.0% 80.4% 71.0% Experimental results show that the ratio of the amount of substance of the PDD and melamine is 1:2.5 when the top The Effect of Reaction Temperature PDD with melamine substance than 1: 2.5, investigated the influence of the reaction temperature on the product recovery, fierce as PDD and melamine reaction, the reaction temperature should not be higher than 600 C, the reaction temperature is too high, the solvent is easy to Volatile affect the reaction carried out.

These improved properties by the addition of Nb are brought about by the grain refinement of ferrite matrix and finer dispersion of martensite.
Results and Discussions Mechanical Properties of GA Simulated Steels.
The mechanical properties of the GA simulation steels annealed at 850 o C and 900 oC are shown in Fig.2.
The metallurgical factors affecting on stretch flangeability were discussed mainly for hot rolled steel sheets.
Figure 5 shows the mechanical properties of GA steel after 8% strain and aging at 100oC for 60 min, which is more severe conditions than natural aging.

Long term period exposure to poor IAQ level, can lead to discomfort and uneasy feeling and thus may affect productivity and quality of life.
The thermal sensation of the human body is the key factor to determine the degree of thermal comfort achieved.
Table 1: Features of the office Features Office room Designated Room DPU lecturer office Floor Area 122.06 m2 Volume 330.25 m3 Maximum Occupancy 40 persons 14.87 m 8.21 m Fig 1: Layout of DPU lecturer office The equipment used to analyze the properties was Telaire 7001 CO2 Monitor and the data logger used in the experimental was HOBO Temperature/Relative Humidity.
If the number of occupancy is decreasing, it will affect the CO2 level content and decreasing the value.
This is due to the activity level affect the thermal comfort for a certain occupants.

Although a great deal of nonlinear influence factors have been researched separately, the meshing backlash and bearing contact are the major influence factors in planetary gearing due to significant clearances.
In this paper, a dynamic simulation model of planetary gearbox with gear mesh backlash and contact of multiple bearings is accomplished to study the effect of both the factors at the same time. 2.
The mass and material properties are listed in Table.1.
The contact spur gear method calculates the contact forces by using the involute function (which describes the tooth profile) and the contact properties.
Analytical characterization of the unique properties of planetary gear free vibration[J].

Factors controlling this behaviour are reviewed.
The mechanical properties of scales and their adhesion are reviewed.
Properties of steam grown scales This section will review properties of the steam-grown scales and will include transport properties, mechanical properties as well as relevant physical properties.
Mechanical properties.
Thermal properties.

Different mechanical properties are assigned to the zinc coating and the steel substrate.
Although coating would not directly alter the mechanical behavior of steels, however its frictional behavior may change the strain path during the forming process and ultimately affect the formability of the sheet metal.
The model accounts for surface height distribution, work hardening, material properties of the coating and the underlying steel substrate.
Song et al. derived the zinc coating elasto-plastic properties from load-indentation response using the analytical algorithm by Dao et. al. [13].
All the above factors lead to different contact and indentation situation than the typical indentation test.

The flexural strength of combined aggregate concrete is affected by many factors, such as water cement ratio, coarse aggregate size, type, amount, etc.
ceramsite properties is shown in Table 1.
Ceramsite properties Packing density (kg/m3) 1h bibulous water 24h bibulous water Cylinder pressure strength(MPa) Grain size(mm) 840 1.43% 2.2% 8.7 5--15 Concrete Design.
References [1] Technical specification for lightweight aggregate concrete (JGJ51-2002), China Architecture & Building Press.(2002) [2] Standard for test method of mechanical properties on ordinary concrete(GB/T50081-2002), China Architecture & Building Press.(2002)
China Architecture & Building Press.(2002) [7] Standard for test method of mechanical properties on ordinary concrete (GB/T 50081-2002).

One of many external factors that influence the mechanical properties of CMC is the compaction pressure given during fabrication process.
Introduction Low thermal expansion coefficient and reactivity followed with hard and brittle properties of Al2O3 tend to be considered disadvantageous in its application as structural ceramic materials and armors in the military industry.
Therefore, Al2O3-based ceramic matrix composites (CMCs) with particulates, fibers, or whiskers-shaped ceramic reinforcements [1] have been developed due to its exceptional mechanical properties, including favorable toughness, resistance to high temperature and corrosion, with lower density compared to metals [2].
It is known that the applied compaction pressure will contribute significantly to the properties of green compact [9].
Porosity is indicated as stress concentrator and crack initiator [7] which can affect mechanical properties of a material.

., Centre of Excellence in Experimental Solid Mechanic and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, 16846, Tehran, Iran. 2Institute of Materials Science and Welding, Kopernikusgasse 24/I, A-8010 Graz, Austria. 3Institute of Lightweight Design, Inffeldgasse 25d, A-8010 Graz, Austria.
Drilling holes in the vicinity of the crack tip turns the crack into a notch and reduces the crack tip stress intensity factor.
The distance between the hole centers is considered as the main parameter affecting the efficiency of this method.
Mechanical properties of high strength steel S690 [13].
The distance between the hole centers (2d) was considered as major parameter affecting the efficiency of this method.

It affects directly machining accuracy and parts quality.
Burrs controlling and deburring technology have become one of the main factors that restricting the development of the precision and ultra-precision machining, flexible manufacturing system and automation machining technology [1].
According to users information compared to members' database, different web pages access authorizations provide for different users by setting the DestinationPageUrl properties of login control which included in ASP.NET 2.0 membership frame
Fig.6 Flow chart of burrs prediction It can be learned from the figure that there are two conditions for given cutting parameters compared to cutting burr data exist in database of the system. 1) for those accord with main influencing factors conditions, system adopts query methods; 2) for those do not accord with main influencing factors conditions, system adopts the reasoning method of BP neural networks [5].
China Mechanical Engineering, Vol. 16(2005), p.1039~1041