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Smith et al. [12] analyzed factors affecting the adoption of timber as a bridge material, where more then 20 criteria were accounted.
Factors such as prefabrication level, drying, transport, knowledge, and experience in using elements affected the estimate of the construction time criterion.
Being a natural raw material, timber represents one of the best choices for energy efficient construction, since it also functions as a good thermal insulator, has good mechanical properties, and ensures a comfortable indoor living climate.
[3] Assefa, G. et al.,: Quality versus impact: Comparing the environmental efficiency of building properties using the EcoEffect tool.
[12] Smith, R., Bush, J.R., Schmoldt, L.D.: A hierarchical model and analysis of factors affecting the adoption of timber as a bridge material.

Concrete-polymer composites (C-PC) have excellent mechanical and durability properties.
Concluded that the proper mix design outstanding increase the physical and mechanical properties of the cured composite.
In addition to the mechanical properties, other properties such as thermal conductivity, shrinkage, creep and fire protection are beginning to make a great relevance.
PCM with EVA 5% (P/C) and polyacrylic ester (PAE) series in the range of 5-20% showed good mechanical properties in the range of 200-400 oC.
There are many factors affecting the bond quality.

The measured pavement responses are compared between the pavement sections to evaluate the effects of various experimental factors, such as axle load, speed, et al.
Alternating tensile and compressive strain state of the trabecular bending fatigue test results by MTS-810 test machine, it was showed that the fatigue life under tensile strain with only the conventional fatigue test results were significantly differences within tensile and compressive strain, The alternating structure of fatigue damage affecting the pavement of the most important factor.
It can be seen in different axle load levels, strain are still showing alternative tensile and compressive strain state, the maximum tensile strain and compressive strain and value of amplitude are increased with the axle load increasing, and the longitudinal value of amplitude can be referred as one of the indexes for evaluating mechanical properties.
Obviously, speed has little effected on vertical stress; it only affected lasting time of vertical stress.
It can be seen that speed significantly affect strain response at the bottom of asphalt layer, but less affect vertical compressive stress on the top of subgrade, and with the speed increases, the strain and stress response changes slowed down.

The effect factors were analyzed which were initial water content, hot air temperature, mass of hot air and materiel.
A test bed was established and the single factor experiments were made, analyzing and summarizing the effect law of various factors to the drying. 2.
Effect factors and levels in the drying process are in the table 1.
Hot air temperature is the main factor affecting the drying characteristics.
Mass flow of materials is related to many factors, so as drying tube diameter, the hot air mass flow and the actual project requirements and so on.

This has resulted in decreasing the productivity of these machines by up to 30% and increased the power requirements by 30-50% depending on the physical properties of soil [3].
It depends on a number of factors such as mechanical characteristics of soil, size of the blade and the angle of cut (θ).
The friction forces depended on factors such as material of the blades, area of contact, lubrication, weight of the soil, and adhesion of soil on the surface of blades resulting in soil moving over soil as compared to soil moving over surfaces of bulldozing blades.
Chen, Research on reducing adhesion results of soil electro-osmosis and its affecting factors, Proceedings of the 10th International Conference of the ISTVS, Kobe, Japan, 20-254 August 1990, 45-55
Chen, Abrasive properties and mechanism of polytetra fluoroethylene and ultra high molecular weight polyethylene, Tribology International 14 (1994) 65-72

The aim of this study was to investigate the effect of activated fluxes on the weld morphology, angular distortion, and mechanical properties obtained with activated tungsten inert gas (TIG) process applied to the welding of 6 mm thick mild steel and stainless steel plates.
The reversed Marangoni convection are considered to the main factors for increasing penetration of A-TIG on dissimilar welds in this study.
In this work, four kinds of oxide powders were used to study systematically the effect of activating flux on weld morphology, angular distortion, and mechanical property for JIS G3131 hot-roll mild steel to SUS 316L stainless steel dissimilar metal joint.
The angular distortions value θ can be derived from the equation: q = tan -1 (V/X) (1) Transverse tensile and Vickers hardness tests were used to examine the metallurgical properties of A-TIG welds.
According to work by Heiple [6-8], the direction of the fluid flow in molten pool can affect the welds morphology.

Laser-based ultrasonic waves propagated on CFRP were received with various transducers such as accelerometer and acoustic emission sensor in order to evaluate the properties of waves due to the variation of frequency.
The dimensions and properties of the specimen are listed in Table 1.
Material Properties and Specimen Dimension Material Laminate (ply) Density (gm/cm 3) Dimension (mm) CFRP 24 1.59 220 220 3t× × (a) CFRP specimen (b) C-scan image Fig. 1 Dimension of artificial delamination in CFRP specimen and C-scan image Fig. 2 The schematic diagram of experimental set-up The material used was a CFRP panel of dimensions220 220 3 mm mm t × × as shown in Fig. 1(a).
Figure 3 (a) shows a transmitted waveform and Fig. 3(b) and (c) present received waveform for CFRP laminate with θ=0° and 90° (not affected by any defects).
Fig. 6 shows the variation of stress wave factor (SWF) with the distance from the edge of CFRP specimens with delaminated area.

The balance requirement and the strength of the structure which is affected by the caving rock and lower coal roof were given.
According to the the roof properties, thickness and mining height is different, distributing the step key strata into the second, the third steps, and so on.
As shown in Figure 5, as a result of the interaction of multiple step structures is the main factors of surrounding rock collapse of steeply dipping seam group working face.
The structure is characterized by: high structure and low structure interaction and correlation together, low structure is the basis of high structure, Low structure instability make high structure lose part of force on high to support, thus affecting the structural stability.
Mechanical analysis of shell structure in longwall mining face of steeply dipping seam[C].

Many factors can affect breakout patterns, such as the material used in the pick tip and the geometry of the tip, pick arrangement, rock properties, as well as drum rotation speed and advance speed.
It can be seen from Fig. 2 that given that other factors remain the same, advance speed can significantly change the breakout patterns of a drum.
Assume one line is cut by a single pick and the cut of the pick is not affected by other picks.
Various factors such as pick spacing, number of spirals, angular positions between picks, breakout angle, and drum advance speed per revolution can affect the pick cutting interactions.
Morris, The design and operation of boom tunnelling machine cutting heads, in: 14th Canadian Rock Mechanics Symposium on "Rock Breaking and Mechanical Excavation", Vancouver, British Columbia, 1982, pp. 54-58

In this study, the basic properties of the “Hybrid Epoxy Resin Repair Agent” in which a functional adsorbent was added to an epoxy resin were grasped and verified.
Reinforced concrete structures that have deteriorated due to salt damage are treated by repairs before they affect the structural strength.
It is thought that deterioration and re-deterioration can be prevented by removing ions that are these deterioration factors. [7,8,9,10] As one countermeasure, repair materials using lithium nitrite and salt adsorbents have been developed.
Properties of epoxy resin Epoxy Resin and Repair Material.
Table 1 shows the properties of the used EP.