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Research on Fuzzy-PID Control for a Tension System of Rotary Magnetorheological Damper Liyong Hu1,a and Aliang Chen1,b 1The Faculty of mechanical engineering ＆ mechanics, Ningbo University, Ningbo, China, 315211 a huliyong@nbu.edu.cn, bcal08@163.com Keywords: Tension control, MRF damper, Fuzzy-PID control Abstract.
When the excitation current applied to the coil changes, the magnetic field produced as well as the rheological property of the MRF will change correspondingly [9].
Based on this le ft h o u s in g rig h t h o u s in g M R F d riv in g s h a ft d a m p in g p la te e x c ita tio n c o il s e a l rin g Fig.2 Structure of MRF damper 0 3 6 9 12 15 0 0.3 0.6 0.9 1.2 1.5 current of excitation (A) o utput torque(N·m) Fig.3 Relation between damping torque and excitation rheological property, the output damping torque of the MRF dampers can be controlled to meet the requirement of tension control.
In wire winding process, the mechanical device can only fulfill the function of wire winding, but the quality of products depends substantially on the effectiveness of the tension control system.
If the relaxing reel and the receiving reel run at the same rotational speed, the major factor affecting the tension variation is the output torque of the MRF dampers.

There are hundreds of commercial copper and copper alloys; each one of them has its own corrosion properties and its own applications.
The other purpose of adding chromium in these alloys is to improve the mechanical properties [1].
Chromium could be used to some extent while the use of the other used alloying elements did not improve the corrosion properties of this alloy.
Conclusion The corrosion behavior of copper- Nickel alloys in marine environments depend on many factors such as the amounts of sulphur, CO2, chlorine, flow velocity, temperature and on the type of alloying elements which is added to the alloy itself.
Gampbell, “The Compromise Between Mechanical Properties and Corrosion Resistance in Copper and Aluminum Alloys for Marine Applications”, Ocean Engineering, 1, 1969, pp. 387-393

However, higher angle boundaries show highly variable precipitation and corrosion susceptibility: critical factors are the grain boundary plane and precipitate/matrix crystallographic relationship.
Automotive manufacturers favour the use of AA5182, which contains 4.5 wt% Mg, because of its good mechanical properties.
The rate of SCC propagation will therefore be affected by the crystallographic texture of the material.

The selection of the activator has a significant effect on the resulting physical and mechanical properties of AAS materials, as the type of activator significantly influences the hydration process.
The moisture gradient during drying affects the distribution and size of pores throughout a cross-section.
· If the SG is used for the CTE determination, it is necessary to introduce a correction factor.
One of the project's objectives is to determine a correction factor for CTE using SG.
Puertas, Alkali-activated slag mortars: Mechanical strength behaviour, Cem.

Also, it has been shown that other mechanical aspects of bone, such as microarchitecture parameters, bone geometry, and elastic properties, which densitometric techniques cannot properly evaluate.
Effect of long-term formalin preservation on bending properties and fracture toughness of bovine compact bone.
Estudio de muestras óseas descalcificadas mediante factor de disipación dieléctrica.
Bone dielectric property variation as a function of mineralization at microwave frequencies.
Modeling of the dielectric properties of trabecular bone samples at microwave frequency.

The main purpose of the performed modification was to determine the factors that contribute to the reduction of slitting pass wear and energy consumption.
Experimental conditions and simulations The application of the software Forge2007 ® using the thermo-mechanical models requires the definition of boundary conditions, which are decisive to the correctness of numerical analysis.
Therefore, computational results are particularly affected by: the properties of the steel examined, friction conditions, and the kinetic and thermal parameters describing the rolling process.
The roll pass design modification did not affect significantly the magnitude of the energy and force parameters during rolling in Stand 14.

The material proportions would affect the characteristics of luminescence [1].
It directly affects the lighting color of LED.
The scaling factor is calculated by equation (2), (2) where D is the actual diameter of the standard circle of Fig. 10, P is the average diameter (with the unit of pixel) of the inside and outside diameter of the circle.
The calculated scaling factor is 1.07µm, meaning the actual physical size of each pixel is 1.07µm.
Mammadov, Suleyman Ozcelik, “Effect of different P/As ratio on the optical and structural properties of GaAs1-xPx/GaAs”, Surface and Interface Analysis, John Wiley & Sons Ltd, Chichester, (2010)1252-1256 [2] Timothy H.

Care was taken to pick pleurotus eryngii samples that were plump, of good quality, smooth surface, uniform sizes and without signs of mechanical damage[13].The pleurotus eryngii were packed in storage bags and stored.
The phenomenon of the effect of the 0.5 µL/L 1-MCP treatment group was also not effective but this was due to some other underlying factors.
In conclusion, 1-MCP treatment has been successfully used to establish its preservative property on pleurotus eryngii.
Findings of this research also provide some theoretical basis for further research to establish the mechanism of this preservative property.
[18] Ku V V V, Wills R B H. 1-methlcyclopropene can differentially affect postharvest life of strawberries exposed to ethylene[J].

Analysis of Changes in Water Pressure and Vortex during the Aquatic Exercise for Upper Limb in Person by Fluid Flow Simulation Dogyeong Kang1,a, Munseok Choe1,b, Jong-Im Kim2,c* 1Department of Mechanical Engineering, Graduate school, Kongju National University, 1223-24, Cheonan-daero, Seobuk-gu, Cheonan-si, Chungcheongnam-do, 31080, Republic of Korea 2College of Nursing, Chungnam National University, 266, Munhwaro, Jung-gu, Daejeon, 35015, Republic of Korea adogyeong93@smail.kongju.ac.kr, bcms9522@naver.com, c*jikim@cnu.ac.kr Keywords: Aquatic Exercise, Water Pressure, Vortex, Fluid Flow Simulation Abstract.
Figure 1 3D model of upper limb Table 1 Mesh setting for upper limb aquatic exercise simulation Properties Min size Max face size Nodes Elements Value 0.0001m 0.001m 271,751 1,381,957 Figure 2 Moving motion for upper limb aquatic exercise Table 2 shows the conditions and setup variables used for the analysis.
The reason is thought to be because the thumb and palm are individually affected without being affected by the surrounding regions and the pressures on middle finger and little finger are constantly maintained due to flow interference between other fingers.
Kim, The effects of aquatic exercise program on risk factors of metabolic syndrome and stress in women, Journal of Muscle and Joint Health, (2018), 25(2), 75-83.

The roughness of asphalt pavement is bound to a certain degree of change under car loads and all kinds of environment factors in the long process of the airfield runway on highway being used.
Lots of people are consistent with the definition of the American Society of Testing and Materials (ASTM), the roughness is a vertical deviation of pavement surface which relative to the ideal plane and this kind of deviation will affect the dynamic characteristics of vehicle, driving quality, dynamic load and drainage.
Planes(cars, similarly hereinafter) will generate additional vibration effect, this effect will not only cause the plane's turbulence, affect driving smooth(even affect the instrument in extreme cases) and passengers comfort., but also the additional vibration effect of the plane will impact on the pavement and increase the damage of the pavement.
The data collected by laser profilometer is the relative height value of the pavement and it requires calculating the IRI value with International Roughness Index standard calculation procedure and 100 meters as calculation interval and providing the relevant relation and parameters between the measurement value of laser profilometer and IRI under selected testing condition. 2.4 Vehicular turbulence cumulative meter test method Vehicular turbulence cumulative meter is assembled by displacement mechanical sensor installed in the car; the test system mainly constitutes of carrying vehicles, distance measurement device, turbulence cumulative meter device and control system.
But the test results are related to the own dynamic property, running speed, types of surface, and so on.