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The mechanical properties of the Bio-board were measured.
The test for mechanical properties indicates that the rupture stress of Bio-board produced with the experimental conditions were 6.23MPa~16.95MPa and 8.6~23.5 times greater as compared with the polystyrene plastic used in food container.
Cellulose is hydrophilic and insoluble in water with the properties of highly resilient and impact resistant [10].
The properties of Bio-board depend on process conditions, moisture content of Bio-board, physical property of raw material.
Two pieces of Bio-board were produced and their properties were investigated by tensile test

The acoustic model of ultrasonic lapping was proposed, the track equations of ultrasonic lapping with different vibration modes were deduced, the influencing factors of lapping tracks were obtained, and the lapping tracks with different lapping parameters had been emulated.
In the paper, on the base of common lapping, ultrasonic vibration was adopted to realize the ultraprecision machining of hard-brittle materials, the lapping tracks of ultrasonic lapping and common lapping with different lapping parameters were simulated, which have some significance to guide the production practice for the engineering ceramics parts meeting the requirements of precision, surface roughness and material properties.
During ultrasonic lapping, the high-frequency electric oscillations generated by ultrasonic generator becomes mechanical vibration through transducer, the minute mechanical vibration is magnified and transferred to vibration lapper by amplitude pole, which makes the vibration lapper generate regular forced vibration, and the oilstone generates high frequency vibration droved by vibration lapper, then the workpiece is lapped with vibration.
From the relative motion equation, we can know that the track length will be affected when the speeds change.
Conclusion The acoustic model of ultrasonic vibration lapping is proposed, the track equations of ultrasonic lapping with different vibration modes are deduced, the influencing factors on lapping tracks are obtained, and the lapping tracks of ultrasonic lapping and common lapping with different lapping parameters have been simulated.

A linear differential equation is adopted to account for the complexity of honeycomb paperboard properties under static and dynamic conditions.
The realization of the potential of honeycomb paperboard as an important cushion material has inspired a close scrutiny of its properties.
Experiment results show paper honeycomb structure factors, including honeycomb cell-wall thickness and length, honeycomb core thickness, and liner material, have a certain effect on the impact behavior of paper honeycomb sandwich panels.
[2] Wang Dongmei, Wang Zhiwei, Experimental investigation into the cushioning properties of honeycomb paperboard.
[9] Zhu Dapeng, Zhou Shisheng, Modeling and parameters identification of dynamic properties of paper honeycomb panel. 2008 International Conference on Computer Science and Software Engineering.

The development of a large variety of emerging advanced materials has brought forward newer challenges to the technologists for characterization of their mechanical properties specifically in small volumes.
It is demonstrated earlier [24] that improved combination of mechanical properties of dual phase steels can be achieved beyond VM>0.25 by suitable inter-critical quenching treatment (IQT).
The results thus infer that chevron notched rectangular bend bar specimens can be used to optimize mechanical properties of the rim of ICDP rolls.
The average tensile properties of the steels are: yield strength =422-442 MPa, tensile strength=551-584 MPa, and % elongation=21-25.
Rosenfeild, “Metallurgical factors affecting fracture toughness of aluminum alloys”, Metallurgical and Materials Transaction A, 6A(03), (1975), 653.

However, in high latitudes of China, the temperature in winter often reaches to -40°C and keeps for a long time, which leads to a series of problems existed generally in state monitoring devices, such as poor accuracy, short life, low reliability and high maintenance cost, seriously affecting the stability of its application in cold areas and bringing great challenge to state monitoring device [1].
As an important parameter reflecting the thermal properties of materials, the coefficient of thermal conductivity has vital guiding value in theoretical research and engineering application.
The Principle and Methods of Experiment As to the low temperature insulation materials, the main factors affecting their coefficients of thermal conductivity include the types of materials, humidity ratio, the direction of heat flow, the characteristics of pore, the size of volume-weight (density), the particle size of materials, filling gas, specific heat capacity, etc.
Since the mechanical properties of materials can be characterized by the thermal insulation property experiment during the material experiment, the project team will verify its effectiveness of thermal insulation through the thermal insulation property experiment of low-temperature resistant materials in order to develop low-temperature resistant materials which are suitable for the long-term operation of the state monitoring device at low temperature.
(In Chinese ) [8] Li Zhenyu, in: Harbin Institute of Technology, 2009, Preparation and properties of organosilic-based flexible multi-layer heat insulation materials.

Exposure of the force steel bar was more than 30%, which caused its adhesive properties reducing significantly.
According to the given parameters and relevant information, MIDAS-finite element analysis software is used to establish an entity model and simulate the mechanical properties of the frame underpass bridge structure before the fire.
MIDAS-finite element analysis software is used to establish an entity model and simulate mechanical properties of the frame underpass bridge structure before and after fire.
iii) Considering the present situation and the important role of the underpass, construction period, financial condition, later maintenance and other comprehensive factors, pasting 2 layers of the carbon fiber sheets is adopted to improve the carrying capacity of the structure.
The mechanical properties of reinforced concrete structures after fire [M].

., interprets bearing properties of large diameter post-grouting filling pile, contrasts and analyzes the monitoring data obtained by optical fiber and strain gauge at the same time.
The district is mainly the quaternary alluvium and the soil geotechnical properties are shown in Table 1.
Table 1 Soil physical and mechanical index Soil layer number Soil Depth (m) Bearing capacity basic allowable value [fa0] (kPa) Pile flank friction force standard value qik (kPa) Soil layer introduction ② Floury soil 15.30～18.20 200 50 The most shallow buried, structural is poorer, engineering properties of groundwater is sensitive, not as foundation bearing layer of the project ③1 Floury soil 8.40～16.80 240 70 No significant difference engineering properties, structural, not easily affected by groundwater are bearing layer can be used as a basis ③2 Silty clay 3.30～11.70 390 80 ③3 Floury soil 7.60～21.20 220 70 ③4 Silty clay 410 80 The single pile static load test was divided into six groups, one group of the piles was conducted without post-grouting, two groups were conducted post-grouting at the bottom of the pile, three groups were conducted composite grouting between the bottom of the pile and the side of the pile.
The main factors to induce the monitoring data fluctuation include the change of the pile diameter, monitoring accuracy, embedment method, construction technology and so on.
When pouring concrete, temperature changes of different depths of concrete hydration heat affected the monitoring results.

As the formation pressure declines the stress around borehole changes, and then collapse pressure and fracture pressure are affected.
In directional wells drilling, the wellbore stability is affected not only by formation coefficients such as stress and strength but also by drilling deviation and azimuth.
While the borehole stability is better when drilling to direction of minimum horizontal principle stress. 4) In this study the effect of stress variation on borehole stability was considered as only factor.
It is suggested that other factors such as variation of formation physical and mechanical properties should be taken account for further analysis in borehole stability of directional wells.
Mechanical mechanism of borehole instability in drilling engineering.

So the spontaneous magnetization of samples is affected by the tensile loads.
Main factors affecting magnetic field intensity.
The permeability and magnetization of materials is affected by their carbon and alloy contents.
The carbon content of 16Mn steel is lower than 0.2％, and the addition of Mn influences its magnetic property and interferes with the relation between carbon and magnetic property.
Zhou: Chinese Journal of Mechanical Engineering, Vol. 46 (2010), p. 15 (In Chinese) [3] F.Y.

The chemical resistance of TNT is high; long-term heating at temperatures up to 130°C barely changes its explosive properties; TNT does not lose its properties even after a long time in water.
Comparative diagrams of explosive properties of the materials Fig. 6 clearly shows a significant difference in the explosive properties of the materials of the second group, which includes materials based on heavy metals.
Defining the features of amplitude and phase spectra of dangerous factors of gas medium during the ignition of materials in the premises.
Construction of an algorithm for building regions of questionable decisions for devices containing gases in a linear multidimensional space of hazardous factors.
Explosive materials: Classification, composition and properties.