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Titanium and its alloys are notorious for their poor thermal properties and are classified as difficult-to-machine materials.
Poor thermal conductivity of titanium alloys retards the dissipation of heat generated creating very high temperatures at the tool-workpiece interface, thus adversely affecting tool life.
It can be classified as geometrical error and errors regarding workpiece material properties.
The weighting factors are assigned such that their sum is always equal to one.
Table 12 shows the various cases of weighting factors.

Compared with inorganic materials, conjugated organic materials are more predominant in properties such as large nonlinear optical susceptibility, fast response, high resistance to laser radiations, low dielectric constant, and ease of processing.
The solution was kept at 0℃ for 1h with vigorous mechanical agitation.
The thermo-optic property of HEPU.
Thermo-optic coefficient (dn/dT) is the variation of refractive index depended on the temperature and is the main factors to affect the driver power and response speed of the optical switch.
Transmission loss of optical waveguide devices is produced mainly by the following factors: waveguide material loss caused by scattering and absorption; substrate surface finish by polishing process constraints, irregular interface leading coupling loss between guided mode and radiation mode; curved waveguide surface, causing the loss caused by energy radiation.

These composite pipes possess mechanical and thermal properties that exceed those of their constituent materials.
Traditional design method uses a global factor of safety taking into consideration uncertainties in industrial, loadings, properties of material and mechanical behavior.
The mechanical properties of the pipe material that are calculated using Eqns. 2-8 are: density, shear moduli G, elastic modulus E and Poisson’s ratio.
Table 2 shows the mechanical properties of the composite pipe
The elastic properties and orientations of the fibers were introduced.

Based on the range analysis, the primary and secondary influence factors as well as the optimization results were obtained.
The Land cell measurement system and PARSTAT 2273 system were used to investigate the electrochemical properties.
The orthogonal design is shown in Table 1, of which the factors are HPMC, CMC, PTFE, and SBR with 3 values, respectively.
Fig.2 Quantities of the active substance in the negative electrodes The result shows the quantity of the active substance in sample 6 is higher compared with others The range analysis results are HPMC 0.012, CMC 0.002, PTFE 0.008, and SBR 0.005, respectively, indicating that HPMC is the chief factor affecting the quantity of negative electrode.
The cycle properties are showed in Fig.7.

The effect of pore-forming hydrophilic additives on the membrane morphology and transport properties was investigated.
Introduction Polyvinylidene fluoride (PVDF) is one of the most extensively applied membrane materials in the ultrfiltration (UF) system due to its outstanding antioxidation activity, excellent chemical resistance and thermal stability, highly organic selectivity, as well as good mechanical and membrane forming properties.
Additives are one of the major factors and play vital role in the formation of membrane structure by enlarging or preventing of macrovoid formation, enhancing pore formation, improving pore interconnectivity and/or introducing hydrophylicity [2-9].
Yuliwati and Ismail [9] found that membrane morphology and transport properties can be modified by additives in the casting solution and polyvinylpyrrolidone improved membrane permeability; LiCl can be used in order to reduce macrovoid formation and increase the mechanical stability of the membranes.
Effect of different additives on the morphology, structure and properties such as permeability, porosity were studied.

The result showed that,when n(MgO)/n(MgCl2)=7(molar ratio),the mechanical properties and water resistance are the best, hydration products at this time is dominated by 518 phase.
In this paper, water resistance, mechanical properties and halogen moisture absorption are chosen as the evaluation indexes, effects of molar ratio of MgO and MgCl2 on the properties of magnesium concrete-based straw board are analyzed, which help provide the basis for further improving the properties of chloride-oxy-magnesium concrete products[7].
Water resistance is the ability to maintain its properties unchanged after soaking or long-term contacting with water.
However, its improper amount will directly affect the performance of chloride-oxy-magnesium products.
References [1] Ceng Xiwen.Study on preparation and properties of magnesium concrete-based materials.

This paper mainly introduces the properties of welded joints of supercritical boilers, combined with the actual construction of a power plant, of these new type heat-resistant steel we Ultra supercritical unit; heat resistant steel; weldability al exploration.
Some new heat resistant steel at home is the use of time is very short, on the welding performance they are few, it is blank on the welding joint properties of welded joints, once appear problem, its destructive effects, bad .
experimental materials and methods A new martensitic heat-resistant steel during welding process, it is difficult to fine grain strengthening and dislocation strengthening to improve the properties of welded joints of welding, so there are some differences between the performance and the parent metal joints.
Three factors to produce the crack for the quenched structure, hydrogen and stress.
Fig.3 Welded joints of P92 HAZ TEM a) as welded b) PWHT 1.4 Analysis of mechanical properties of welded joint of new martensitic Introduction T/P91, T/P92（NF616）, E911, T/P122（HCM12A）The higher content of alloy elements welded joints, these alloy elements with solid solution strengthening and precipitation strengthening effect, the mechanical properties of the welding joint level.

Parallel Robots usually have 2-6-DOF, among them, the 6-DOF Stewart parallel robot and the DELTA parallel robot which has achieved 3-DOF flat moving have the deeper study of properties and higher practical process.
In the process of metal surface hardening, the stability of the plasma transferred arc directly affect the effect of surface hardening, parallel robot not only can meet the working space requirements in the process of strengthening some of the parts, but also has good dynamic properties, and is suitable for using as a plasma saw driving device.
For characteristics of plasma arc surface hardening process, as Series - Parallel hybrid robot mechanism formats, plasma arc saw geometric dimensions, motion characteristics and the processing parts of complex surface shape and other factors, in order to ensure the plasma arc stability.
Analysis of 3-RPS Parallel Mechanism Workspace Influence Factors of Parallel Robot Workspace 1)Limitation of the length of kinematic chain (8) 2)Limitation of the turn of Kinematic pairs (9) 3)Interference of the lever There is no mechanical interference of the lever, so it does not need to be considered.
The first international conference on mechanical engineering.

The PP high performance in its mechanical properties are wide due to its crystallinity, it has high tenacity, good clarity, high temperature resistance, among others.
Table 1 – Analysis of variance and significance level of the model Factors G.L.
A chemical reaction induced by radiation in the solid material affects the physical properties of the polymer in various lengths.
Phase morphology, crystallization behavior and mechanical properties of isotactic polypropylene/high density polyethylene blends.
The effect of gamma and electron beam irradiation on the thermal and mechanical properties of injection-moulded high crystallinity poly(propylene).

The microstructure and mechanical properties of the composite were studied.
The domain switching plays an important role in improving the mechanical properties of ferroelectrics [1, 2].
Considering their special microstructure and properties, ferroelectric/piezoelectric ceramic particles have been added into structural ceramics to improve the mechanical properties of the matrix [5, 6].
Mechanical properties.
Therefore, domain structures are the main factors to affect the crack propagation behavior in LiTaO3 particles.