Search results

However, inorganic waste processing is still not optimal due to several factors, ranging from minimal processing technology to the dangers of side effects of processing, such as smoke and toxic gases, such as carbon monoxide, ammonia, and HCN.
Research has revealed that the sound absorption properties of a material are significantly influenced by its density, porosity, and elasticity [7].
At a sample temperature of 140oC, the rubber on the bottom of the sample does not melt too much, so it cannot stick perfectly to the fabric, affecting the soundproofing performance.
Kumar Panda, “Thermal and acoustic properties evaluation of waste tire and textile reinforced epoxy composites,” Mater.
Fei et al., “Morphological structure, rheological behavior, mechanical properties and sound insulation performance of thermoplastic rubber composites reinforced by different inorganic fillers,” Polymers (Basel)., vol. 10, no. 3, 2018, doi: 10.3390/polym10030276

Radiation damages and different modified properties have been observed, not only on the treated surface and near-surface layer but also at a depth of hundreds of micrometers.
showed that the presence of defects in the sub-surface layer is the main cause of the improved properties of metals.[4-6] Therefore, a full appreciation of the thermodynamic process and related modification mechanism of HCPEB bombardments should be reexamined and more detailed thermal stress models should be developed.
The temperature and stress fields are the main factors that determine the structural state and properties of the beam-affected zone.[8-10] If the substrate is not melted (either before melting or due to insufficient beam energy density), there should be two kinds of stress fields induced by the bombardment, a thermoelastic stress σx and a quasi-static thermal stress σy, as shown in Figure 1a.
(a) (b) (c) Small droplet P Eruption P Zone affected by thermoelastic stress wave Heat-affected zone quasi-static thermal stress σy σx electron beam Fig.1.
Thus the significant enhancements of the mechanical and tribological properties observed at depths of hundreds of micrometers are clearly due to the thermal stress impacts.

Among them we can mention: manifestation of breakage of fine particles in the vicinity of the free surface of screw outer zone, energy state and multiplication of dislocations in various superficial zones, influence of surface roughness on the resistance to wear, influence of oxide films and special coatings or of liquid environment on certain physical and mechanical properties of the superficial layer.
The following elements can be observed: A – upper element, B – lower element, ; a – zone of plastic deformation; b – zone with destroyed structure, c - zone of elastic deformation, 1- lubricating material interposed between elements A and B, 3 - microscopic particles produced in the process of wear; 4 – areas on the upper and lower element respectively that will enter directly in interaction; 5 – area with heavily modified physical and mechanical properties; 6 – representation of the limits of variation of the momentary speed values of various areas of fluid [1].
The quality of the oil in a compressor [12] can be affected by three main factors, namely: a) wear: solid microscopic particles of oil and particles detached from moving parts can cause the wear of the component elements, reducing the life of the compressor; b) chemical properties: abnormal viscosity because of oil temperature changes caused by moisture or high levels of acidity, resulting from internal chemical reactions (alteration of refrigerant or hydrolysis of oil).
The dimensions of the layers shown in figure no. 4 depend on a number of factors of the metal that constitute the compressor components and also of a number of factors exterior to the system.
Conclusions The most detailed knowledge of the superficial layer structure of the metallic elements of a compressor allows identifying the mechanisms that explain the response of the material to the generally destructive action of some exterior factors such as the mechanical, chemical or thermal factors.

This paper aims to make a contribution to the understanding of the wear mechanisms of the abrasive belt and its influence factors.
The actual grinding depth is influenced by elastic deformation of contact roller and belt, abrasive wear, blade and machine tool stiffness and other factors.
The physical relationship of grinding process is difficult to be precisely described because there are many factors influence surface roughness [7,8].
(a) a’p=0.3mm (b) a’p=0.6mm (c) a’p=0.9mm Fig.7 Surface wear topography in different theoretical grinding depth Conclusions (1)To study the factors affecting grinding accuracy in the process of grinding blades, the theoretical model of belt grinding accuracy was established
It has revealed that the combination properties are superior to zirconia.

Climatic conditions, soil hydraulic properties and plant root activity are among the main factors influencing water distribution in the vadose zone.
Additionally, the amount of water absorbed by roots, and that which infiltrates deeply or spreads laterally beyond their zone of influence, is determined by various factors, including climatic conditions, root structure, and the hydraulic properties of the soil [6].
Physical properties of soil considered in HYDRUS simulations.
These properties are the hydraulic conductivity K(Sw) and soil saturation Sw as function of saturation degree.
This expansion is due to the combined effects of water uptake by roots and climatic factors such as evaporation.

With the assistance of Taguchi quality design, ANOVA and F-test, significant parameters affecting the kerf have been identified.
Due to the inherent properties of the process, wire-EDM can easily machine complex parts and precision components out of hard conductive materials.
Nimonic alloys, however, are known for the retention of important mechanical properties, such as impact strength, yield strength, and hardness, in temperatures as high as 1100°F, depending on the grade [3].
Pilot experimentation was conducted using ‘one factor at a time approach’, to observe the trends of influence for the selected input parameters.
ANOVA results shows that pulse-off time and pulse-on time are the most significant factors with percentage contribution of 18.6% and 12.93% respectively.

Besides, the movement kinematics is determined by a number of external factors, such as: type of the movement, the load friction, the shape of the cooperating surfaces, the surface roughness, the type of lubricant, and finally the type of material association.
The last factors in addition plays a critical role in the effects on the body of the implant.
In this aspect, particularly important is the appropriate selection of biomaterials concerning their mechanical properties and clinical aspect of reducing their tribological wear during exploitation.
One of the limitations affecting the use of titanium alloys for knee endoprostheses is their low wear resistance resulting from the low tribological properties and high friction coefficient [4].
Bressiani, Mechanical properties and cytotoxic evaluation of the Ti-13Nb-13Zr alloy, Biomecanica, 8 (1), 2000

Influence of Nanoparticle Type, Size and Weight on Migration Properties of Nanorefrigerant A.
Ding et al. [13] for the first time investigated the major factors influencing the migration characteristics of nanoparticles during pool boiling.
Table 1 shows the properties of TiO2 and Al2O3 nanoparticles.
Properties of nanoparticles used in this experiment.
Amalina, Migration properties of TiO2 nanoparticles during the pool boiling of nanorefrigerants, Ind.

These materials are not only useful because of their structural, chemical, physical or mechanical properties; they can also perform an action within a process.
The tube diameter and wrapping angle, by means of their chirality, affect its conductance, density, lattice structure, and other properties.
Also, it has been important the research in covalent binding of biologically active molecules, as the functionalization during the processes has to be maintained. 2.1 Mechanical Reinforcement Significant changes can be induced in the mechanical properties of materials by the introduction of a small amount of CNTs.
An effort of improving the mechanical properties of these coatings is being done.
Textural properties of pure SBA-15 and 2-0, 2-20 and 2-90 composite materials.

Taleff2, c and Todd Helwig1, d 1Ferguson Structural Engineering Laboratory, The University of Texas at Austin, 10100 Burnet Road, Building 177, Austin, Texas 78758 USA 2Department of Mechanical Engineering, The University of Texas at Austin, 1 University Station, C2200, Austin, Texas 78712 USA amorovatma@mail.utexas.edu, bmde@mail.utexas.edu, ctaleff@mail.utexas.edu, dthelwig@mail.utexas.edu Keywords: creep buckling, fire, steel columns, time-dependent tangent modulus Abstract.
One of the critical factors affecting the strength of steel columns at elevated temperatures is the influence of material creep.
One of the critical factors affecting the strength of steel columns at elevated temperatures is the influence of material creep.
The parameters a, b and c are temperature-dependent material properties.
Fields and Fields [5] derived equations for these temperature-dependent material properties for ASTM A36 steel.