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The improved thermal storage properties obtained by DSC analysis reveal melting temperature at 55.95°C and the phase change latent heat of 78.0 J/g.
Finding the compromise between mechanical properties and energy efficiency reduces potential of environmental impact of PCMs application.
Wang, Heat conduction enhanced shape-stabilized paraffin/HDPE composite PCMs by graphite addition: preparation and thermal properties, Sol.
Kim, Optimal preparation of PCM/diatomite composites for enhancing thermal properties, Int.
Černý, Mechanical, hygric and durability properties of cement mortar with MSWI bottom ash as partial silica sand replacement, Cem.

Introduction NBR has good oil resistance, water resistance, air tightness and heat resistance properties, mainly used for the production of oil washers, gaskets, oil seal materials，which have been widely used in the aerospace field.
Owing to the influence exerted by the mechanical stress, heat and oxygen in the air, environmental media and other factors, the NBR’s compression rate decreases relatively, Such as materials gradually sclerosis and crack, the variation of physical and chemical properties, mechanical properties, electrical properties change and so on, which leading to the production of all kinds of security hidden danger even accidents.
So the rubber material aging behavior in-depth study of the various countries' cause extensive attention of researchers.which resulting to the loss of NBR’s excellent mechanical and sealing properties.
Owing to the natural aging test’s long period, and NBR’s effect factors can't be researched separatly, a perfect experimental result are not able to get in a short time.
Mechanical rejuvenation in polymer glasses：fact of fallacy[J].

The rock permeability is influenced by the stress on the rock, the aperture width, roughness, filling and other factors.
All these factors must be considered carefully and should not be ignored.
The joint physical and mechanical properties are defined by the two parameters.
The dependence of fracture mechanical and fluid flow properties on fracture roughness and sample size[J].
[20] J.Zhao and E T Brown, Hydro thermo mechanical properties of joints in the Carnmenellis granite [J].

Literature[7] ignores various factors, uses the following simplified formula: (1) λc is heat transfer coefficient, unit is W/(m.oC);T is temperature, unit is oC. 2).Heat capacity C0 and mass density Heat capacity refers to required quantity of heat when the unit mass object temperature elevates one-degree, unit is J/kgK or J/kgoC.
Concrete heat capacity is mainly affected by the aggregate types of concrete, mixture and moisture, but little influence, so heat capacity formula given in the general literatures do not consider these factors.
Meanwhile, loading geometric properties and material properties and initial conditions of onto the model, define distribution in fire condition for transient temperature field analysis, analysis of time is 5400s, step number is 200[2], obtain temperature field distribution in the above figure.
Structural stress analysis in fire Based on the actual simply-supported bridge fixed method, beam ends sets mechanical boundary conditions.
Fig.6 Thermal deformation in fire According to mechanical analysis request, loading corresponding geometric properties and material properties and initial conditions of reinforced concrete model onto the model, define condition for mechanics analysis, analysis of time and step number as same as temp-erature field analysis, obtain simple supported beam deformation in the figure above.

The gas inclusions factors of influence on the dispersion parameters and, as a consequence, the aggregative stability of foam mixtures, are ranked.
Improving the quality of their industrial production and expanding the operational capabilities can take place only with a scientific understanding of the formation laws of the structure which properties substantially depend on the following factors: - conditions for the raw materials’ homogenization [2]; - mass transfer intensities during the viscous bonds’ predominance period between dispersed gas and solid phases [3]; - individual features of the phase transition from a viscous to an elastic state depending on the raw mixes’ composition [3].
Sychev, Chemistry of solidification and the formation of strength properties of cement stone, Cement. 9 (1978) 9-13
Nagorsky, Influence of the shape of dispersed aggregate particles on the mechanical properties of foam concrete mixtures, CATPID-2019 IOP Conf.
Shmitko, Management of technology processes, structure and properties of concrete, GASU, Voronezh, 2002

Study on the Temperature Field of Cemented Carbide Substrate in Miniature EACVD System Hongxiang Wang1,2,a, Dunwen Zuo 1, Wenzhuang Lu1, Feng Xu 1 , Dang Zeng1 and Jianliang Shen1 1 College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, China 2 Department of Mechanical and Electrical Engineering, Huaian College of Information Technology, Huaian, China a whxsyhgf@163.com Keywords: Miniature EACVD system, Cemented carbide tools, Diamond films, Substrate temperature field,FE Abstract.
The uniform distribution and the stability of the substrate temperature are the most important factors that deeply affect the quality and the growth rate of diamond films.
Introduction CVD(chemical vapour deposition) Diamond films, with its singular mechanical, thermal, optical and electric properties, has quite wide application prospect in many fields[1,2], miniature EACVD system boasts not only the advantages of simple equipment, convenient operation, large films-growing area, non-strict requirements for the growth parameters, and low equipments investment, economical cost, but also its characteristic of small deposition area, low power equipment, which makes it as the firstly chosen method to industrialize the CVD films.
The chemical and physical properties of different materials in the system do not change with the temperature and pressure
Hot filament temperature is a key factor in EACVD deposit of diamond film.

Lighting circuit of airport navigation system runs in the environment of wet and high temperature all year round, the more stringent requirements of the insulating properties of the circuit is then put forward.
Because of electrical, mechanical, chemical and other factors, light cables will gradually aging and resulting in the cable insulation performance gradual decline or even damage, how to judge the insulation resistance change and actual life of the lighting circuit must be done.
The cable connector production quality is another important factor affecting the lighting circuit insulation resistance value [8], the connector production must be done in strict accordance with the operational procedures to ensure the insulation quality.
Analysis on influencing factors by parameter identification model.
[12] Xu Ping, Insulating Resistance Measurement and Main Factors Influencing on the Insulating Resistance.

However, the defects in the disk, such as heat induced hole, previous particle boundary (PPB), non-metallic inclusions, have been one of the important factors to perplex development and quality level of P/M superalloy.
Many factors affect the amplitude of echoes, in addition to the size of inclusions, the properties, orientation, surface roughness and shape will influence the echo height of inclusion.
Fig.12 Reaction zone between Al2O3-SiO2 inclusion and matrix (a)SEM of Al2O3-SiO2 inclusion (b)Surface scanning of Al2O3-SiO2 inclusion Fig.13 Crushing effect of extrusion on Al2O3-SiO2 inclusions Results of mechanical properties test.
Tin, Nickel-Based Superalloys for Advanced Turbine Engines, Chemistry, Microstructure and Properties, Propul Power. 22(2006) 361-365
Chen, Influence of Inclusion on the Stress Intensity Factors under Thermo Mechanical Loads in a P/M Superalloy, Appl.

Due to the influence of rolling force fluctuations, tube size changes and material uniformity and other factors, vibration and other phenomenon inevitably occur in the rolling process of tandem rolling mill.
In the rolling process, the rolling force is fluctuating because of the influence of tube size changes, the material uniformity and the structural rigidity of the rolling mill and other factors.
Finite Element Model for Rolling Definition of Material Properties.
Fig.5 Meshing for the roll The Definition of Material Properties.
The physical properties of the roll are: elastic modulus of 150 GPa, shear modulus of 79 GPa, Poisson's ratio of 0.27, mass density of 7810 kg / m3.

Thermal and cold spraying encompasses a great variety of techniques for deposition of fully or partially molten or cold particles of material to produce coatings with a specific microstructure and properties for the purpose of surface enhancement.
Among the many factors influencing sprayed coating integrity, residual stress is very important since it will be the driving force for possible crack propagation and consequent coating failure.
Although they are all referred as spraying techniques, differences in the physical phenomena responsible for coating formation and particle bonding may result in consequent differences in microstructure, mechanical properties and stress patterns.
Temperature in the plasma jet, usually 7000 - 10000ºC, is a key factor here - the strength of mechanical or metallurgical-chemical adhesion of the molten particles depends strongly on the temperature and it results in residual stresses of differing magnitude.
Finally, there are techniques, such as high-velocity oxy-fuel (HVOF) or combustion spraying, where both mentioned factors are of equal importance.