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But grinding process is a complex process, a variety of physical and chemical factors are intertwined and the dosage of grinding aids should be strictly controlled.
It is necessary to study of the minerals crystal structure, dissemination size, form of occurrence, and mosaic relationship between diaspore and silicon minerals, and to establish the relations between bauxite process mineralogy properties and bauxite selective dissociation; (2) Study on mechanical properties and factors of bauxite crushing.
Exploration of relationship between grinding aids and crushing mode, and examination on the impact of aids on the surface properties and flotation separation characteristics of bauxite grinding production, are all worth researching.
(5) Study on the influence factors of selective grinding, such as the combination form of mill and classifier, the dissociation process as well as different types of grinding and classification equipment.
Grinding is a highly complex process, so there are many factors that affect the selective grinding of minerals, the impact of these factors on bauxite grinding behavior, and the law between them, are all worthwhile for researching.

Introduction Thermoelectric power generation modules have been used as a lightweight means of power generation, especially when power generation per unit weight is an important factor.
Conceptual Design The design is based off 4 concepts: the high solubility of ammonia gas in water, the temperature dependence of solubility for a gas in a liquid, insolubility of polar chemicals in organic solvents, and the scalar property of vapour pressure.
All of these properties were utilized in the Einstein/Szilard design.
Factors Affecting Cooling Rate The final cooling rate which occurs in the condenser is affected by several factors: enthalpy change of the solution as a result of ammonia absorption, rate of ammonia absorption in water for varying concentrations and rate of ammonia transfer from evaporator to condenser.
The pressure of ammonia in the condenser is affected by the rate of ammonia absorption by water.

The main factors involved in manufacturing clay bricks are the type of raw material used and the firing temperatures, both of which affect the final product [4].
The effects on the physical and mechanical properties of clay bricks were examined and assessed.
The physical properties of specimens after firing were characterized.
The high porosity of clay brick is beneficial in the terms of thermal properties of brick i.e. brick with high porosity also has low thermal conductivity and is good for the insulating properties.
Ersahin, Quantitative analysis of pumice effect on some physical and mechanical properties of clay bricks, J.

Severe plastic deformation (SPD) has attracted interest as one of the breakthrough procedures to achieve further enhancement of mechanical properties for metals.
Since the microstructure affects mechanical properties of SPDed metals [2] [3], it is useful for material design to investigate microstructural mechanisms and factors which contribute to macroscopic properties.
Mechanical anisotropy of the rolled SUS 316L is investigated on the bases of obtained results.
It is predicted that mechanical anisotropy is introduced by cold-rolling.
Hocini, International Journal of Mechanical Sciences, 51 (2009) 797-806

Traditional methods of masonry modeling are based on the use of generalized ("effective") mechanical properties of the composite as a continuant homogeneous continuant medium.
Modeling of masonry within the concept of a continuant homogeneous medium is performed based on the continuant phenomenological approach, which requires defining 'generalized' mechanical characteristics adequately reflecting the mechanical properties of the composite as a continuant body while working in the construction.
With individual changes corresponding to the concept of ultimate limit states (method partial factors), the calculation methods for masonry structures, developed by Onishchik, L.I., are a part of existing standards.
Phenomenological approach is the basis of mechanics of a damaged continuant medium, according to which material destruction is any microstructural change determining the change in mechanical properties.
This means the loss of the property of continuant solution dependence on the input data, as well as the loss of properties of hyperbolic dynamics and properties of ellipticity in statics.

Metal Doped Titanium Dioxide: Synthesis and Effect of Metal ions on Physico-chemical and Photocatalytic properties Sajid I.
Modifying a material never means the change in base properties entirely but to improve material’s properties for various applications.
The methods of metal doping in titanium dioxide, nature, size, concentration of dopant, etc. are the major factors influencing the characteristics (particle size, surface area, thermal property, band gap, etc.) and the photocatalytic properties of doped titanium dioxide.
Effect of metal doping in TiO2 on physico-chemical properties The characterization of metal doped titanium dioxide involves mainly the examination of textural, structural and catalytic properties.
[7] Wold, Photocatalytic Properties of TiO2, Chem.

Define the Material Properties.
In the Workbench static structure analysis, the material properties was defined by young's modulus,poisson's ratio and density.In Geometry Data of ANSYS Workbench, the corresponding material properties was edited or newly built.The material of the gear is 17CrNiMo6 in this paper.The material properties parameter is shown in Table 2.
Material 17CrNiMo6 Elastic modulus Mpa 2.10e5 Poisson's ratio 3 Density kg/m3 7930 Table.2 The material properties parameter of the geer The Meshing.
Wang and Ian Howard: Mechanical Engineering Science, Vol.218 (2004) ,pp.l-12
Zhang: Mechanical Engineering and Automation,Vol. 4 (2008), pp.69-73.

The various factors such as temperature, nozzle clogging, vibrations, misalignments, extrusion stop in the midpoint, dimensional inaccuracy, weak structure etc. are responsible to produce poor surface finish and defects in printing.
Mechanical vibration severely affects the printing quality, to maintain accuracy, researchers improved the mechanical properties of FDM parts.
In case of any impurity or any printing parameter-related error, the extrusion may get affected and further, it will affect the part quality.
Results show that nozzle clogging is one of the important factors which affects the quality of the finished part and can be monitored using vibration signals.
Pearce, Factors effecting real-time optical monitoring of fused filament 3D printing, Prog in Addt Manu, 2 (2017) 133–149

The prediction results agree well with the measured values. 1 INTRODUCTION Because of coal anisotropy of physical and mechanical properties, as well as the presence of cleat and fissures, the integrity of coal is undermined, and coal is easily broken [1].
This classification standard is not applicable for coal seam with depth of a few hundreds meters, thereby the distribution of coal crushing prediction results is affected.
Because coal classification method and standard are yet been established for the current domestic to guide coal seam crushed zones forecast, internal factors and external factors of coal crushing is not comprehensive enough, and the safety requirements can not be satisfied for coal seam drilling [2-4].
The results show that the crushed classification method is reliable and can meet engineering requirement. 2 HOEK-BROWN CRITERION Hoek-Brown criterion can be expressed as follow [5]: (1) Where, are maximum and minimum principal stress; is uniaxial compressive strength for intact rock; is rock constant; , are the coefficient of rock properties.
Status quo and trends analysis of factors considered in rock mass classification methods.

Introduction When a structure is exposed to mechanical loading of compression, the structure can undergo buckling, which is a form of structural instability accompanied with a sudden and irreversible change of its shape.
Nano-devices utilizing the buckling phenomenon are drawing attention because buckling can induce large and abrupt deformation by a small range of mechanical loading.
Since carbon nanotubes (CNTs) show coupling between mechanical and physical properties, such as deformation-driven closure of band gap energy [1], they have potential for revolutionary nano-devices whose property can be switched through buckling.
In future work, we will carry out further analysis for extensive structural parameters to understand the factor affecting the behavior of buckling of CNTs, such as chirality, defect, and interlayer interaction.