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Improvement of the mechanical and physical properties of a piece of particle board was to conform to the international standards.
Song et al. examined the wood-waste tires composites and found that the ratio of wood fiber to rubber particles and amount of MDI were the significant factors that influenced board mechanical properties [8].
From the table 2, it was found that interaction factors affected to MOE between (1) rubber and time, and (2) glue and time were showed significantly different at level of .05.
From Table 4, the main factors of glue and rubber were showed significantly different affected to IB at the level of .01.
Therefore, it is necessary to increase the amount of glue for improving the mechanical properties as well as pressed time along with the amount of increasing glue.

The mechanical strength of the pellets, as well as its wear resistance are important factors to characterize the mechanical behavior.
The uniaxial compression test was made to evaluate the mechanical properties of the pellets.
The properties of iron ore pellets are influenced by the type and nature of the ore, the additives used and the heat treatment.
Focusing in the physical characteristics, it can be stated that the mechanical properties are a key point to the productivity of the cast iron and steel making processes.
Stress versus strain data obtained by the test was applied in the numerical model to represent its material properties.

Scanning electron microscopy was used to elucidate parameters affecting on microstructure and wear properties of products.
This work indicates that epoxy shows good reinforcement characteristics as it improves the sliding wear resistance of the carbon matrix and that factors like carbonization temperature, sliding distance and normal load are the important factors affecting the wear behaviors.
The main purpose of using reinforcement can be considered to improve the mechanical, thermal or tribological properties and to reduce the cost of the final product as Reinforcements like ceramic or metal is being used in carbon composites to improve the wood-based mechanical and surface properties remarkably [14].
Mechanical property of porous carbon in different temperatures.
Prediction analysis of wear test shows that the carbonization temperature is the most significant factor among three factors and subsequently, sliding distance is the second and normal load is the third affecting factors of test.

Effects of cold rolling factors and temperatures and annealing times on microstructure, hardness and tensile properties have been studied.
This study is intended to refine austenite grains to nano-scale and improve the mechanical properties of 301 stainless steel.
Mechanical properties of the alloy have been studied at various conditions.
Results and discussion The microstructure and mechanical properties of 301 austenitic stainless steel in solution anneal state is studied first.
Conclusions 1- Using 70 and 90 percent cold work and annealing, the reversed austenite grain size was reduced to less than 100 nanometers. 2- In 301 austenitic stainless steel, a 90 percent cold work and annealing in various temperatures affects the nano-scale austentite grains more significantly than a 70 percent cold work. 3- The mechanical properties of the steel under study is improved after cold work and anneal. 4- The influence of temperature parameter on grain size and improvement of mechanical properties is more pronounced than that of the time parameter.

Why mechanical properties of collagen scaffolds should be tested in a pseudo-physiological environment?
Whereas mechanical properties are usually measured directly in the air, the aim of this work was to evaluate the effects of a pseudo-physiological environment (PPE) on the mechanical properties of collagen gels.
This increase was thereafter correlated to the mechanical properties.
However for biomedical applications, environmental factors, such as temperature, physiological environment, ionic strength, pH, can strongly affect mechanical properties, especially for hydrogels [15].
Previous work in our laboratory has highlighted the UV ability to increase collagen gels mechanical properties [16].

The basic characteristics of the space environment and the complexity of tear damage mechanism are introduced, and this presentation also summarizes the research status of the tear damage mechanical mechanism and damage properties under the influence of the multiple space environment factors of high-performance airship envelope.
Affected by ultraviolet ozone factors, high performance yarn bundle presents photolysis; surface morphology change; optical properties; bearing capacity reducing; accelerates aging, degradation and low temperature embrittlement under high and low temperature alternating.
Bending fatigue mechanical properties of fiber bundle under light heat and UV effect got research.
High strength fiber Kevlar is eager to degradation of the mechanical properties under ultraviolet light.
Actually, tensile stress fatigue and bending fatigue further affect tear damage properties under overpressure condition.

There are many factors that affect the mechanical properties of laminated veneer lumber (LVL), such as the thickness of veneer, the compression ratio, the wood species and the density of LVL.
The density of wood is one of the main reasons effected the mechanical properties of wood.
The compression ratio, assembly require mode and enhanced mode of LVL affected the its creep properties, modulus of elasticity (MOE) and MOR [3].
Studies show that the mechanical properties of LVL may be improved advisably by using dipped veneer and enhancing density of LVL.
The mechanical properties of LVL would be enhanced with the increase of compression ratio in certain range.

The interfacial interaction of carbon fiber reinforced polyimide(PI) composites is a very important issue because it is one of the key factors to influence the mechanical properties of materials.
The fracture surface analysis showed the fiber matrix interface dominates the mechanical and tribological properties.
A large body of research has found that this stress transfer process affects some quasi-static properties such as strength[6,7].
Results and Discussions Mechanical properties Fig. 1 Bending properties of CF/PI composite The measured bending test results of the CF/PI composite are listed in Fig 1.
Conclusions Experimental results showed that the addition of CF greatly affected the mechancial and tribological properties of the PI composites.

The controlling factors conducing mechanical properties degradation under unstressed conditions with oxygen, water vapor and sodium sulfate vapor were discussed.
So it was thought that temperature may be one major factor in the properties change instead of the interlayer thickness.
It should be paid attention that the weight loss in all these atmospheres was not more than 3%, which may suggest that the interlayer thickness was again a minor factor affecting the weight change of the composite.
While in other non-oxygen-containing atmosphere at elevated temperature, the interlayer thickness was not yet the major factor affecting the properties of the composite, so the selected interlayer thickness was just referenced.
CONCLUSION Under unstressed conditions, the factors conducing mechanical property degradation under unstressed conditions were oxygen, water vapor and sodium sulfate vapor.

Prolonged concrete mixing can occur due to transportation delays or logistical issues on construction sites, potentially affecting the material's properties.
Such scenarios may unfold for various reasons, including traffic delays, logistical complications, or unforeseen hold-ups at the construction site, leading to potential alterations in the concrete's properties affecting its manageability, structural competence, and endurance.
A review of concrete's bacterial viability highlighted the importance of optimizing environmental factors for effective biomineralization-based self-healing [3].
Additionally, prolonged mixing can affect the setting time of the concrete, either accelerating or retarding it, depending on various factors such as cement type, ambient temperature, and the presence of chemical admixtures.
This factor could influence the hydration process and subsequently affect the development of concrete properties.