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Introduction Carbon nanotubes (CNTs) are ideal material for a wide range of applications due to their unique electronic, mechanical and thermal properties [1].
Most of these theoretical and computational studies have shown that the interfacial thermal resistance is one of the critical factors in the heat conduction process.
As reported in literature [20], the k of a composite material is affected through the depolarization factor (Df).
The properties of the raw materials are listed in Table 1.
The properties of MWCNT and epoxy.

Concrete containing coarse recycled concrete aggregate (CRCA) is known to have inferior mechanical properties to concrete made with NCA.
Another mechanical property reported to be adversely affected by replacing NCA with CRCA is compressive strength.
Petrou, Enhancing mechanical and durability properties of recycled aggregate concrete, Construction and Building Materials 158 (2018) 228-235
Sun, Impact of natural and social environmental factors on building energy consumption: based on bibliometric, Journal of Building Engineering 37 (2021) 102136
Zhang, Mechanical properties of recycled aggregate concrete under uniaxial loading, Cement and Concrete Research 35(2005) 1187–1194

They allow optimization of the product after fractionated factorial experiments in which count in addition to the desired response functions and their unwanted variability due to noise affecting the operation of the product.
Use a performance indicator compound called S / N ratio [4, 5], with which we can identify combinations of operating parameters that must be mastered and which prove the most insensitive to noise factors.
The signal/noise ratio shows additive property that the sum of the effects of factors is equal to the combined effect.
And also has the property that maximize the performance index coincides with minimizing loss of quality.
For the four factors we choose each 3 levels for each parameter.

After analyzing the factors that influence the current density distribution on the anode surface in EMM process, three potentially feasible schemes are presented and their fabrication results are predicted through numerical simulation.
Recent research has shown that the presence of artificially created microstructures (namely surface texturing) can significantly affect friction and wear behavior of lubricated surfaces[2].
However, with the scheme1, only microstructures in non-uniform distribution can be produced, which will result in different friction property in different areas.
The uniform property is generally required, thus in this work, the fabrication scheme2 is adopted.
Spikes: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, Vol. 217(1)(2003), p1

Shield tunnel floating involves many factors,which not only consist the problems of tunnel design itself,such as tunnel linear,the thickness of overburden soil,formation characteristics and surrounding environment.But also consist the problems of construction technology,such as the control of tunnel axis,construction parameters and grouting materials properties etc[2,3,4].
Shield machine works under shallow covering in the bottom of the river, unbalanced forces of the tunnel will cause tunnel floating,and it is difficult to control the tunnel axis.what’s more,it is easy to cause flooding accident due to construction parameters control，which affects construction safety and tunnel forming quality[5].
Figure 1 Plane relation with shield tunnel and Tangjia river The outside diameter of shield tunnel is 6.2m,the inside diameter is 5.5m,the segment lining thickness is 0.35m,the segment ring width is 1.2m,staggered assembling,bolted joint.Shield is mainly through silty sands.Soil main physical and mechanical indexes are shown in Table 1.
Table 1 Soil main physical and mechanical indexes Soil Name Unit Weight （kN/m3） Compression Modulus （MPa） Cohesive Force （kPa） Internal Friction Angle （°） ②1clayey silt with silty clay 18.6 7.9 12 28 ③1sandy silt 19.0 14.38 5.0 31.5 ③2silt 19.0 13.08 1.0 32.5 Calculation of the minimum thickness of overburden soil Shield tunnel across the river and other shallow covering should meet the requirements of the minimum thickness of overburden soil.Simplified calculation analysis method is usually used to calculate the minimum thickness of overburden soil by analyzing force balance of segments buoyancy,the weight of upper soil column and segments weight[5].The minimum thickness of overburden soil calculation diagram is shown in figure 2.
Besides taking anti-floating reinforcement measures, shield construction parameters control is an important guarantee to ensure construction safety.Soil chamber pressure control directly affect the stability of excavation face;grouting pressure size, distribution patterns and slurry characteristics directly affect the size of buoyancy on the tunnel[9,10].Therefore, soil chamber pressure and grouting pressure should be controlled strictly in this project

In this paper, the machining strategies for fabrication of die assembly with typical shaped cavity using EDM were discussed, according to the different cavity structures, the best machining strategies were proposed Introduction With the development of material science and industry progress, a large number of high strength, high hardness, high toughness, high brittleness, high temperature and other special properties of the mold material have been applied more and more widely.
Adaptive control is more or less a feedback loop; as information is fed to the controller from the workpiece, the controller is able to change its inputs thus affecting the workpiece.
As the spark melts the workpiece, so too is the tool electrode affected.
Tool electrode a) Rough machining b) Semi-finishing c) Finishing machining d) Schematic plan of machining Fig.6 Machining strategy of fabrication Conclusions The strategies for fabrication of die assembly with typical shaped cavity by using electrical discharge machining are researched, and the following conclusions are drawn. 1) Electrical discharge machining (EDM) method is very suitable for fabrication of hard material with the typical shaped cavity such as deep and narrow slot or freedom surface. 2) The tool electrode wear, especially the corner wear is one of the main factors influence the machining accuracy of machining die assembly using EDM method. 3) Several machining strategies for fabrication of die assembly with typical shaped cavity are discussed.
[4] Zhao Wei, Ren Yanhua, Ren Zhonggen, et al., “Research on the movment law of charged particle in the channel of EDM,” Mechanical Science and Technology, vol. 20(5), pp 762-763

Each material will have different insulation properties based on their respective specific heat, [38].
The qualitative factors do not show a compelling reason that sample B or E should be chosen over sample G.
Idris, “Analysis of Some Physical and Mechanical Properties of Selected Fabrics”, International Journal of Textile Science, 2 (3), 49-58, 2013
Dimitrovski, “Mechanical Properties of Fabrics from Cotton and Biodegradable Yarns, Bamboo, SPF, PLA in Weft,” in Woven Fabric Engineering edited by Polona Dobnik Dubrovski, Sciyo Publisher, 2010, pp:25-46
“Effect of Layer Orientation of Mechanical Properties of Rapid Prototyped Samples,” Journal of Materials and Manufacturing Processes, Vol 15(1), 2000, pp. 107-122

Introduction Mechanical properties of materials depend on parameters such as their thermal treatment, type and concentration of solutes and impurities, presence of secondary particles and their size and dispersion, and grain structure including their texture, grain size, grain boundary orientation and topology.
In intergranular brittle fracture representing a very important reduction of the strength, it is necessary to consider anisotropy of interfacial properties.
It is generally accepted that high-angle grain boundaries are classified as (i) high energy general grain boundaries with an easy tendency to intergranular fracture, (ii) low energy singular (special) grain boundaries with the properties close to those of the bulk, and (iii) transitive vicinal grain boundaries [1].
Based on this consideration, the Grain Boundary Engineering concept was proposed to produce materials with optimum properties by controlling the grain boundary character and distribution in their structure [2].
The grain boundary migration is then affected by this interaction as is reflected by changing the value of n in Eq. (2) and another mechanism of grain boundary migration should be considered.

The technique is useful for the studies of the dynamic tensile deformation and the fracture (fragmentation) properties of ductile metallic materials.
Understanding the fragmentation properties of solids is important to the researchers in the fields of physics, mechanics, aerospace and defense engineering.
However, the joule heating resulted from the large electric current in the ring specimen brings a remarkable temperature rise, which may change the mechanical property of the specimen being tested.
Whether electromagnetic loading or explosive loading are applied, there are two pivotal factors that prevent the wide acceptance of the techniques: the complicated experimental technique and the expensive experimental equipment.
Measurement of dynamic plastic flow properties under uniform stress. in Symposium on the Dynamic Behavior of Materials: ASTM Special Publication.1963

In the as-welded test specimen, two peak transverse residual stresses (sx) were located on either side of the weld centerline in the region roughly between the weld nugget and the thermal-mechanical affected zone (TMAZ).
This area of the weld will be relatively ineffective in inhibiting dislocation motion and the strain localization in the softened area of the weld will result in degradation in the mechanical properties [4].
During the fatigue testing, it was observed that hammer peening the plates reduced the tensile residual stresses in the lap joints and increased the fatigue life by a factor of 10.
Sandtrom, Fatigue properties of friction stir overlap welds, International Journal of Fatigue 68 (2005) 456-468
Hatamleh, The Effects of Laser Peening and Shot Peening on Mechanical Properties in Friction Stir Welded 7075-T7351 Aluminum, ASM International 17 (2007) 688-694