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The transition zone is the weakest link, and this is an important factor that affect the mechanical properties and durability of recycled concrete directly [8,9,10].
is fatigue cracks growth threshold. is stress intensity factor.
Fatigue cracks growth speed of material is affected by its elastic modulus, ultimate stress and ultimate strain according to Formula 2 and Formula 3.
[3] Cao Wei: Experimental and theoretical reseach on fatigue properties of plain concrete under trial cyclic loading with constant lateral pressure.

The equivalent stress intensity factor method should be a representative work for well solving the relative engineering structure analysis [4-7].
Railway axle is an important component affecting vehicle’s dynamic behaviour and the transportation safety.
The material fatigue properties play a key role for the safety assessment.
Monotonic mechanical properties at room temperature are 705 MPa ultimate strength, 385 MPa 0.2% proof strength, 25 % elongation, and 50 % reduction of area.
Miller and E.R. de los Rios: The behaviour of short fatigue cracks (EGF Publication 1, Mechanical Engineering Publications, London 1986) [3] R.O.

It was reported that the geometry of cutting blade, rotation speed of blade, radius of rotary cutter, wrapping length of leaf were the key factors of the blockage and wrapping [8].
The mechanical properties of the palm sheath were assumed to be orthotropic elasto-plastic.
The elastic mechanical property parameters assumed for the analysis are listed in Table 1.
Elastic properties assumed for FEM analysis.
Properties Values 0.08 0.07 0.095 1530 [MPa] 11 [MPa] 1849 [MPa] 9.42 [MPa] 9.43 [MPa] 770 [MPa] Results and Discussions Experimental Results.

The paper reports some main factors that effect the performance index of PSA fiber.
Table 1 Test equipment for fiber properties NO.
The main reason is that the aggregation of the polymer make a significant impact on the mechanical properties of fibers[2].
pH Effect the Mechanical Properties of PSA.
Because of the special structure, benzene ring is not affected by inorganic chemical reagents, unless under special circumstances.

The optimum process was achieved after three single factor experiments.
This makes textile materials maintain not only their original styles, such as softness, air permeability, strength, elongation, etc, but also some special properties from nano-TiO2, such as anti-static, self-cleaning, antibacterial, oil repellent function, as well as the property of reflect and absorb the ultraviolet and infrared light[2].
However, during the process, problems like unevenly dispersed nanoparticles and their effect to the main properties of the fibers are still existed [4].
This phenomenon also affects the physical and mechanical properties of the fibers.
Fig. 1 Nano-TiO2 powder Fig. 2 Nano-TiO2 dispersion 3.2 The single factor experiment by the assist of supercritical CO2 Effect of time on the adhesion of nano-TiO2.

Jacobson[1] have studied how the surface integrity of bainite steels was affected by hard turning with different cutting speeds.
However, when Hioki[3] machined AISI H13 on a CNC machining center with ball end cutter, he found that cutting speed did not significantly affect the 3D roughness parameters.
Some waves are related to machining parameters, some waves are determined by the material’s properties, and the others have a relationship with vibration in the machining process.
The roughness of frequency band D5 is almost the largest that means the feed per tooth and radial depth of cut are the main factors influencing the surface roughness.
Journal of the Brazilian Society of Mechanical Sciences and Engineering 35 (2013) 537-553

Oily sludge is a stabilizing system generally formed by water-oil, water-oil type of emulsions and suspended solids, it is differential to dewater, difficult to handle, and the composition and physical properties of the sludge will be affected by the sewage quality, produce process, pharmaceutical dosing and other factors, the difference will be very significant [1].
The sludge oil content in sludge in tank is significantly higher than landing crude oil, but the resin and asphaltene content is substantially equal, and they all belong to the aging oil range, in order to improve the separation effect, reducing of the adsorption properties between the oil and solid particles in the process was needed.
Quenching is adjusting the alignment state and physical properties of the particle swarm by physical or chemical means to make it suitable for different dewatering operation pretreatment, then to improve the performance of the mechanical dewatering [7].
When the aeration rate is 0.12-0.15 m3/h, speed of scraping bubble speed is 30 time/min, the stirring intensity 1200 r/min, volume ratio of water to sludge is 1: 1, dosage of inhibitor is 150 mg/L, djustment agent is 150 mg/L, collectoragent is 130 mg/L, concentrated settling properties of the sludge after flotation purification is better, precipitated by 8 min, its moisture content can be reduced to less than 85 %.
Extraction method can extracte the oil points, but the loss of the extraction agent and the economic problems brought about by this, is an important factor in restricting the development of extraction process.

Key words: Sensor; Scattering light; Coagulation; Tofu; Quality Abstract: Mechanical evolution of soymilk coagulation was investigated using a novel fiber optic sensor in order to solve the problem of instability in Chinese traditional tofu quality.
The coagulation conditions depend on a number of factors including soymilk concentrations, coagulant type, coagulation pressure and temperature, and coagulation time.
These methods explore the properties of tofu gel in various aspects.
Fig. 1 The experiment setup C Statistical analysis The detecting values for the first min of data were averaged to calculate the primitive value , the recorded detecting values were divided by its corresponding primitive value to obtain the scattering light ratio for analyzing properties of the fiber optic sensor.
A. , The effect of temperature and inoculum concentration on rheological and light scatter properties of milk coagulated by a combination of bacterial fermentation and chymosin.

Algae and their toxins can also affect nutrient-rich waters.
Small rivers are often affected by local anthropogenic activities, with poor water quality.
It is expected that the waters of the plain to have the lowest quality, and the influence of local factors in order to improve their quality is minimal.
The properties of these waters can generally change very quickly - for example, turbidity, influenced by precipitation, or seasonally influenced color.
The following systems, sectors, objectives and activities are affected by water pollution: 1.

The test results indicate that LTV may be realized by stepped compound horn under single acoustic excitation, and the vibration frequency is close to the simulation result, and its vibration properties are good.
As shown in Fig. 2, the number of the diagonal slits n, the length l and width b of the diagonal slits affect the number of incident longitudinal wave with certain inclination.
The diameter of output end d and the position of the diagonal slits L3 affect energy loss of the converted shear and longitudinal wave.
(a) Impedance test (b) Amplitude test Fig. 8 Scene test The test results shows that the resonance frequency of the acoustic system is 19883.6 Hz, and the factor of mechanical quality Qm is 2324.82, the longitudinal amplitude is 8 μm and the tangential amplitude is 6.3 μm.
The deviation might be caused mainly by the inconformity of the actual and supposed material mechanical properties of the horn.