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These properties make them suitable for energy storage applications.
CNFs show great potential for large-scale applications in energy storage and conversion with their excellent mechanical properties, superior thermal and electrical conductivities, and high chemical stability [8-10].
The stabilization treatment of PAN is carried out at 200-3000C which starts the formation of a thermally stable ladder structure which increases the stability and mechanical properties of the structure due to the four-point connection of the bonds [32].
The precursor solution properties, environmental conditions also showed an effect on the morphology of nanofibers.
Sachin Chavan.Review: Electro Spinning Technique and Factors Affecting Electro Spun Nano Fibers and Some Applications.

Compared with externally bonded FRP technique, NSM technique, which requires much less surface treatment, is capable of mobilizing tensile strength of FRP and increasing the resistance to vandalism and environmental factors due to no exposure to the air.
Structural behaviour and shear capacity of reinforced concrete beams strengthened with NSM FRP technique was studied and some parameters were considered, such as type of reinforcement forms, spacing and mechanical properties of filling epoxy.
The tensile properties of aluminum alloy 6061 were determined from tension tests conducted in accordance with ASTM E8-3 [9].
Some characteristic values on tensile properties are listed in Table 1.
Tensile properties of aluminum material s0.2 (N/mm2) su(N/mm2) eu sf(N/mm2) ef E (GPa) 257 304 6.36 277 8.29 71.38 Table.2.

It affects the material’s thermal radiation ability, the spectrum distribution and radiation heat transfer capacity between substance.
At present, a lot of institutes have established the spectral emissivity measurement system, but due to some kinds of factors of the sample such as substance types, and surface conditions, the accuracy of spectral emissivity of material need further validated through comparison among different institutes [2].
In the simulating process, due to temperature and density difference caused by floating force, at the exports of the hot-air duct we introduce Boussinesq approach , The assumption that consists of three parts: one is that the fluid viscous dissipative is ignored, two is that the other properties are constant in addition to density and three is that the density is only considered in momentum equations which is relative with volume force, the rest of the density also as a constant and the environment temperature T0 as the reference temperature.
The differential equations of natural convection under Boussinesq approach, 3-D, steady-state, constant properties, incompressible are as follows: Continuity equation: The law of momentum conservation: Energy conservation equation: Simulation and analysis.
These factors seriously limit the emissivity measurement range, at the same time, using this kind of duct, the energy of the thermal fluid loss is even severe, and this lead to export temperature was significantly lower than the actual set temperature.

Furthermore, the concrete damage detection technology is complex due to various influence factors and damage concealment.
Furthermore, PZT patched are usually pasted on the face of structure, which makes them be easy to be influenced by the environment factors.
Furthermore, the damage degree and location in column are obtained by wavelet packets analysis theory and the statistical properties of damage index in different regions.
The effectiveness of the damage statistical identification method based on piezoelectric wave theory is verified and the mechanical properties of concrete column is studied in this paper.
Furthermore, from the test, the effectiveness of the SHM is affected by the amount of the PZT sensors and actuators in the array, it is suggested to arrange relatively more sensors than the other places so as to lower cost.

The phenomenon of capillarity is the principal factor responsible for the rise of dispersed waters and those of the superficial levels of the subsoil.
These models need well defined moisture transport properties and a useful measure of the capillarity of building materials is the water absorption coefficient.
The property called water absorption coefficient quantifies the water entry into a building material due to absorption when its surface is just in contact with liquid water.
The samples were placed in constant-temperature water bath controlled within ±0.5 ºC to avoid changes in water viscosity that might affect the absorption rate [7].
The water absorption coefficient property is dependent of the petrographic properties, chemical, physical and mechanical properties and the state of rock deterioration, as showed in the following figures with the samples exposure to salt solutions.

Monotonic Material Properties.
Thus, one may need to understand the mechanical properties of the component, such as ultimate tensile strength, yield stress, and modulus of elasticity.
From tensile testing the material properties of guide pins were determined.
The guide pin strain gage had a gage factor,, and a resistance value,.
Monotonic material properties such as , and. 2.

There were also improvement in human health as reflected by the number of averted deaths and recovery rates of people affected by the virus [10].
We must realize that the problems being faced by the world at large currently is affecting the global system, and as such we must identify the gaseous pollutants that pose as menaces to the environments we live in.
One of the proponent factors for the need of biologically engineered oil-yielding organisms is that they do not require inorganic Nitrogen fertilizers to cultivate them.
· Development of improved short reaction pathways for oil extraction and production of biodiesel with quality fuel properties
· Advances in applications of intensification processes to oil extraction · Modelling and optimization of oil extraction to maximize oil yield · Investigation of physicochemical properties of plant seed oils to assess their potential for biodiesel production. 6.

A wide range of experimental data obtained in the field of studying the structure and properties of nanocomposite ion-plasma coatings made it possible to generalize and systematize the characteristic features of coatings of various cermet systems [8-12].
And secondly, spiral steps in reality can have a greater height than the Burgers vector, that is, h > b, which affects the calculation results through a parameter d.
Taking into account these factors and the satisfactory agreement of the obtained calculation results with the experimental results, we can talk about an adequately chosen theoretical approach and the viability of the calculation model.
Kharanzhevsky, The tribological properties of superhard and functional coatings based on carbide and boron nitride, Journal of Friction and Wear. 40(6) (2019) 776-782
Morozkin, Researching the properties of nanocomposite coatings by the methods of indent-diagnostics, in I.A.

The aim of the present study was to evaluate antimicrobial property of vanillin-incorporated orthodontic PMMA resin on S. mutans biofilm formation.
Using this PMMA resin, removable orthodontic appliances with antimicrobial property can be applied to prevent dental caries or tooth demineralization in orthodontic patients.
These polysaccharides advocate bacterial colonization and are important virulence factors in the development of dental caries.
The aim of the present study was to evaluate antimicrobial property of vanillin-incorporated orthodontic PMMA resin on S. mutans biofilm formation.
Further studies are required to investigate the flexural strength, which is an important mechanical property, and other physical properties of this vanillin-incorporated PMMA resin along with the clinical evaluations to verify these results as well as the biocompatibility of this material.

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing,210016 China 2.
Introduction: Hard aluminum alloy with advantages of heat resistance and processing properties are widely used in the aviation and aerospace field [1].
Thus, the key problem for decreasing the machining deformation and improving quality of products is to predict the deformation and find the influence factors.
Fig. 4 Y-displacement image after processing (Unit: mm) Fig. 5 Y-displacement curve after processing The deformation of workpiece in X and Z axis affect its molding and fitting precision.
The initial and final states of mechanical process were all same in the finite element simulation, so there were same displacements.