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There are many factors that can affect the dewatering performance, such as particle size, extracellular polymeric substances, metal ions, organic matter, filamentous bacteria, a variety of conditioning agents.
Its properties are generally the same as ordinary water.
Bound water is the part of water which properties is changed due to the impact of the sludge particles, including capillary water, sludge particle surface adsorbed water.
Smith and Vesilind recommends to careful consider the factors which can affect the results, and confirms the dissolved gases in the sludge is one of the influencing factors.
In addition, the number of unfrozen water in the sludge have some controversy due to the influencing factors, such as the trapping water between the floc particles, the ice formation of intracellular water and the quantity of the particle adsorbed water etc, and the test fail to distinguish all these factors.

The results provide insights into the effects of die angle on the material's deformation behavior and mechanical properties, offering a foundation for optimizing the ECAP process for AA6061.
The development and refinement of these techniques aim to enhance the mechanical properties of metals for sophisticated applications [3].
Instead, other factors such as the number of passes and the material's properties may have a more significant influence on the billet's stress distribution and subsequent mechanical improvements.
This uniformity is crucial to ensuring consistent plastic deformation across the billet, leading to improved grain refinement and enhanced mechanical properties of the material.
Effect of Equal-channel angular pressing on mechanical Properties: An overview.

Surface layer of coated fabric bear the main mechanical properties of coating film, has a great influence on the handle of coated fabric.
First of all, Important order and the best group of factors which affect test indexes were obtained by visual analysis(range analysis) .
Significant of factors was achieved by variance analysis(α=0.10).
Important order of factors was decided according to R value size.
Then the properties of coated fabrics were tested.

In addition, the fine grain growth orientation of laser cladding layer improves the mechanical properties of alloy, which is better than that of casting and forged alloy.
Therefore, the main affecting factors for the forming of laser cladding coating are laser power, laser scanning speed and powder feeding rate, protective gas flow and defocusing of laser spot.
Besides the influence of many single factors on the ratio of width to height and the dilution rate of the coating, interaction among these factors also need to be considered.
Microstructures and properties of direct laser sintered tungsten carbide (WC) particle reinforced Cu matrix composites with RE–Si–Fe addition: A comparative study[J].
Cemented tungsten carbides: production, properties and testing [M].

Abstract： This paper emphasis has researched the ER properties of Ni group core-shell nano particles modifier with Urea，SDBS and other polar molecule，analysis the relationship among ER properties and polar molecule type ，compound modifier under different electric field or magnetic field.
It is found that the shear stress increasing with adding polar molecule, compound polar molecule modify can marked advance the properties of Ni group core-shell particles ER fluid.
Modify is one of most important of many factors affecting the ER property.
It has proved that polar molecule can greatly increase ER properties.
This paper focuses on the research of morphology of particles structure and properties of electrorheological fluid under different electric field, magnetic field and electromagnetic field.

Modal Analysis of Vegetable Transplanter’s Mounting Headstock Based on ANSYS Junling Wang1,a , Xinxin Zhu 1,2,b , Zuli Zhang 1*,c and Yuqiu Song1,d 1College of Engineering, Shenyang Agricultural University, Shenyang, China, 110866 2 Shantui Construction Machinery Co.Ltd,Jining, China, 272073 ajunlingw@163.com, bzxx709382951@163.com,csauzhangzl@yahoo.com.cn dsongyuqiu@yahoo.com.cn * Corresponding author: sauzhangzl@yahoo.com.cn Key words: ANSYS；Mounting headstock；Modal simulation；Strength Abstract: Mounting headstock is an important part of the vegetable transplanting machine, its strength directly affects the machine's performance.
Introduction Mounting headstock is an important component of transplanter, its performance directly affects the performance and life of the transplanter.
The failure manner of mounting headstock is related to the mechanical properties of material, the type of load, stress, the shape and size of component member, temperature and environmental factors.
Modal analysis is a technology used to confirm the vibration characteristics of a structure, through which, the natural frequency, vibration mode and its participation factor, that is the participation extent in the vibration of a vibration mode in specific direction, can be obtained.
Finite Element Method of Mechanical Design [M].

Meanwhile, the key parameters affecting the evacuation can be analyzed with the application of fire simulation softwares, thus the conditions of ASET will also be made clear.
The Main Influencial Factors in the Evacuation On the whole, the factors affecting the evacuation include personnel density in the channel, the movement speed, human behavior and psychology in a fire, the familiarity with the building, the rationality of the construction structure and layout, the validity of evacuation signs and emergent lighting system, all of which will directly affect the time and the evacuation .
Therefore, per capita minimum space in the passageway has to be 0.28m2 in order to ensure the safety of evacuation Influence of personnel properties on evacuation Personnel properties include general characteristics and response features.
The former consists of such personal factors as the age, gender, physical health and social relations as well.
The space configuration properties are stored in geometry database for convenient use.

The numerical results of stress are different in different position, if the local stress and the stress focus because of sharp corner, eyelet, attachment, weld heat-affected zone exceed a certain value and reach the numerical that could generating the crack.
The establishment of the model and the preliminary check Material characteristics of the drum According to the system design requirements, material of the drum is 16Mn steel, its mechanical properties and fatigue properties refer to literature .
Overall consider the drum’s stress concentration, stress gradient, size effect and the purity and uniformity of material, we must import such factors as follows in the fatigue analysis: 1)Aimed at the phenomena of stress concentration because of the part geometry, we introduce stress concentration factor; 2)Based on the sectional dimension and section form, we introduce the size factor ε; 3)Based on the surface processing of part, we introduce surface coefficient β.
Because in the real working condition, The level affecting the drum’s life is often change, it is necessary to study the drum’s fatigue life, damage and sensitivity that factor of safety at critical region.
Conclusion 1) Before fatigue analysis, by means of finite element method to determine the dangerous points of parts, can reduce the blindness of fatigue analysis, and greatly improve the efficiency of fatigue analysis. we get the weak parts that prone to fatigue fracture distribute the lateral section near the drum’s hub bore,and fatigue life is cycles. 2)Use Ansys to analysis structural static mechanics and fatigue, the drum’s hazardous location, and study the drum’s fatigue life,damage or factor of safety, and the changing load’s susceptibility in critical region of the three factors. 3) Fatigue sensitivity analysis shows: on the basis of the current condition, the decrease of load have good inhibiting effect on the drum’ fatigue damage, and have positive effect.

An analytical model of the monocrystal piezoelectric generator was established by using the mechanical vibration theory.
Then we studied the impact of the structural dimensions and material properties on the power generation performance.
The solution of displacement is (24) Speed is (25) Take static distributed load-deflection curve as the tentative formation function (26) According to the Rayleigh process (27) Simple calculation is (28) Numerical simulation analysis To visually illustrate the impact factors of the power generation performance of monocrystal piezoelectric generator, we analyzed the impact of the structural dimensions to power generation capacity in different substrate material conditions.
The change trend of the curve in the Figure shows that to the high Young's modulus of the substrate material, the thickness is a major factor affecting the amount of power generation.
[6] Zhang Yimin Mechanical Vibration [M] Beijing: Tsinghua University Press, 2007:187-18 In Chinese

The first chapter is devoted to mechanical properties of TWBs.
The first section is devoted to mechanical properties of TWBs.
Mechanical properties of TWBs Tensile testing.
On the other hand, properties of the base metals can be considerably affected by the welding process.
High stress concentration factors are reported in the transition zone.