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Plenty of studies have shown that CNTs can favourably improve the mechanical properties of bone TE composites [23, 25, 27, 28, 48].
Small percentages of MWCNTs (2 wt. %) improved significantly the mechanical properties of the PMMA bone cement.
The effects of material composition and porosity on the scaffold pore structure and mechanical properties were studied.
Wang et al. [30] investigated the mechanical properties of CNT-enhanced (0-2 wt. % F-MWCNTs) chitosan films.
The fabricated CNT-containing hoses showed both improved mechanical and antithrombotic surface properties.

The green strength of a powder compact results from the mechanical interlocking of the irregularities on the particle surfaces.
This work investigates and quantitatively evaluates the factors influencing the green strength of the powder compacts.
These properties affect both the ability of the particles to deform (and therefore reduce porosity) and to mechanically lock together.
In reality, in the latter case, these two effects (density and strength) should not be considered independently as porosity will in itself markedly affect the strength.
The reason for this is currently unclear, but it is possible that any TiN layer formed on the particle surfaces acts as a lubricant and interferes with the mechanical bonding at the interfaces.

Human factors included active fault and passive fault, the active fault was human factors leading to the disasters, human error factors leading to disaster caused largely for internal staff especially specific personnel who will directly determine the specific high-way construction quality and safety incidents in the construction, such as specific construction personnel would directly determine highway construction quality and safety accidents, principal include could cause highway construction system occurring construction accidents or engineering quality accident personal unsafe factors and unsafe behavior, according to the survey analysis: 77% people considered that safety awareness was not strong, 54.8% people considered that security system was not in place, 42.1% people considered to be illegal manipulation equipment, we could see the safety factor was the main human factors causing most highway construction accidents, material factor was the material that leaded to the accident conditions
Highway Construction Accident Hazards Specific Factors.
The operator factor analysis was research in highway construction process of human factors on the influence of accident disasters, statistics showed that 88% accidents were caused by unsafe behavior of the people in the process of building construction, but the person's problem was intertwined complex question on many kinds of factors, such as social and political and economic and psychological and ability and so on, so the operator factor analysis should be give adequate attention.
Mechanical equipment factor analysis.
A lot of mechanical equipment was used in the highway construction process, so it was a very important cause of the accident on unsafe condition of machinery equipment, produce mechanical equipment undesirable reasons were mainly machine inherent reliability and service reliability in two aspects, the factors caused the machine malfunction as follows from the view of mechanical equipment inherent reliability, such as the machine structure hardware design and potential defects and low manufacture quality and poor material and the machine left hidden trouble and faulty in transport and storage and installation, it was mainly reason caused malfunction for environmental conditions and used conditions in the use process, the harsh conditions more prone to error action, at the same time, it was important factors for management system irrational about maintenance and maintenance and use standard or process method was undeserved or operating mistakes.

The pore structure of concrete is a very important material property influencing the durability of concrete.
The relevant properties of the concrete components were monitored according to EN 196-6 [5], EN 933 [6] and EN 1097 [7].
In order to compare the methods, errors affecting the measurement must be eliminated.
[6] EN 933 Tests for geometrical properties of aggregates, ÚNMZ, 1999
[7] EN 1097 Tests for mechanical and physical properties of aggregates, ÚNMZ, 2011.

This stage is very important in the process methodology and can affect the microstructure and properties of ceramics [5].
Surface roughness of the conductor was also played a critical role in the measurement of microwave properties; the smooth the surface, the skin effect can be reduced.
The shrinkage is the key factor in LTCC technology.
The presence of microcrack inside via became worse due to the density gradient at this area and due to imperfect processing factors.
The processing of ceramic material must be optimized with respect to microstructural characteristics, because only this way we can produced ceramic with properties that approach the level of intrinsic dielectric properties.

An important factor for rotor critical speeds is the stiffness of its bearings.
Ap=2 μ0 F / (CgC2fB2max) considering the geometric and correction factors.
In equation, Cf is the factor that demonstrates the decrease of the magnetic force resulting from the leakage, fringing factors, and the eddy current effect.
The properties of the eight poles heteropolar radial bearing used in this design are presented.
The physical properties of the magnetic bearings as follows: W1=20 mm, B1=22 mm, H1 =26.5 mm, N=180 turns, IbT=3.2 A, IbB=3.0 A.

Once WH grows and spreads quickly, these WH plants cover lakes and ponds, causing clogged waterways, affecting aquaculture, and hindering agricultural activities [4].
Tensile Properties.
The lignin presence also influenced the mechanical properties of the WH fiber film.
Besides processing time, temperature was another parameter that significantly impacted the WH film's moisture content, water absorption and mechanical properties.
Their mechanical properties also improved with the rising amount of lignin on the surface of WH film.

The procedures concerned the assessment of resistance to mechanical (impact and cut) and thermal (flame) factors.
Mechanical properties.
Fig. 1 SEM images of tested composites Mechanical properties.
Cabulis, Experimental Investigation of the Mechanical Properties and Fire Behavior of Epoxy Composites Reinforced by Fabrics and Powder Fillers, Processes 9 (2021) 738
Boczkowska, The Effect of Manufacture Process on Mechanical Properties and Burning Behavior of Epoxy-Based Hybrid Composites, Materials 15 (2022) 301

By referring to [2], pressure and temperature were the most affecting parameters that shall fully specify the quality of injection moulded part.
According to [3], the most important factor that affects warpage was packing pressure.
Reference [4] had stated that shrinkage was influenced by a number of factors, and the most important factor was packing pressure.
Polypropylene (PP) was chosen as the main material, because of its good mechanical properties and wide range of applications with well balanced properties, and the most important is it has a very good heat resistance [5].
It is famous since it can enhance the properties of polypropylene and many more.

The factors with influence on water absorbency performance including molar ratio of AM to AA, neutralization degree, content of crosslinker and initiator were investigated.
Because of its properties of absorbing water and insolubling in water, hydrogels can be applied to various fields, such as daily necessities and cosmetics, medical supplies, building materials, etc [4, 5].
It was difficult to apply widely because of poor mechanical properties and shortcomings of instability.
To prepare hydrogel with good water absorbency and mechanical properties high content acrylamide is introduced into cross link network in this paper.
In Table 1, the orthogonal experiment was designed on four factors and three levels.