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Wood micro-structures are the dominant factors to determine wood porosity[13].
The trends of the two data are similar which illuminates climatic factor results in the changes of the rate of cell wall.
The leading factor of the rate of cell wall in softwood is tracheid, and then is wood rays.
Accordingly, wood densities are affected, so the effects of wood carbon sequestration are different.
[16] C.R.I.W.I.: Physical and Mechanical Properties of Chinese Main Species.

These defects will affect the mechanical properties of the 3D braided composite, and even result in disastrous consequences.
The form factor and peak factor of node(3,0) were chosen as the feature of the signal waveform, and the detailed characteristics of defect signals were described by the statistics of node(3,1) and node(3,3).
The formula used to Calculate Characteristic quantities as follows:1 : Form factor : Peak factor

Ghasemi2, b 1Department of Mechanical Engineering, Persian Gulf University, Bushehr, Iran 2College of Metallurgy and Materials Engineering, University of Tehran, Tehran, Iran aeskandari.ho@gmail.com or heskandari@pgu.ac.ir, bhghasemi@ut.ac.ir Keywords: Al-matrix composite, Dynamic consolidation, Wear behavior Abstract.
The nature and properties of the interface between reinforcing phase and the matrix, affected by method of making the composite, can influence the tribological properties of the composites [5].
While many investigations have been focused on the sliding wear behavior of aluminum matrix composites[9-13] produced by various processing methods, there are no results on the wear properties of Al/SiCp composite manufactured by dynamic compaction.
In present study, since the factors of matrix material, particulate size, type and distribution of SiC particles were kept the same, thus the effect of porosity on the wear of the composites should be considered.

The Ca(OH)2 is ionic non polar crystal, therefore CTA+ and Br- will affect the morphology of Ca(OH)2 by electrostatic attraction.
Effects of Ca2+ to CTAB amount on physical properties, morphologies as well as CO2 sorption performance were thoroughly investigated.
The sorbent with 0.3g of CTAB exhibited the lowest CO2 adsorption at both reaction and diffusion stages when compared to those of the other sorbents, which could be due to a number of factors such as particles size, surface area and pore volume.
ZnO nanoparticle-functionalized WO3 plates with enhanced photoelectrochemical properties J.
Zhang: Mechanical properties of unidirectional SiBN fiber reinforced boron nitride matrix composites Mater.

The strength of the spline depends on several factors, such as the way of connection、the condition of using、manufacturing and wether the tooth surfaces have heat treatment.
So the using coefficient K1 and the backlash coefficient K2 are the major factors which can affect the bearing capability.
Fig.7 respectively in the analysis of observation: The elastic ring contact state, contact stress, friction stress, total stress and displacement vector and the interaction between factors such as status, to help designers get the structure size of the elastic ring in the optimum working condition.
The drive shaft will have tiny beating in operation, so that the flexible ring will get an impact with certain frequency, since the effect of the force on the structure and properties of elastic ring is very small, so it the effect of the impact is ignored.
Gong: Mechanical Design:(2005) No.5: pp54-56 (In Chinese)

Introduction: Ultrasonic motors (USM) principles of operations are based mainly on the concept of driving the rotor by a mechanical vibration force generated on the stator (PZT Transducer) via piezoelectric effect.
Mishandling of material deformation can produce a jerking effect, which can affect degree of positing and accuracy of the USM.
Using these relations the torque factor of the motor and the diameter of the rotor including driving wheel and the shaft can be determined.
The transferred force to the shaft can be determined using the torque factor relation (3): Sliding Element (3) Shaft (a) (b) m (c) Fig. 7 Dynamic models used to determine the dimensions of the USM parts This relation shows that the torque factor has to be carefully selected during the design process of the motor.
This considered the properties of the material used to manufacture the shaft and the moment of inertia of the rotor.

Such fractures occur more frequently among elderly and senile patients on impact of minor traumatic factors and can occur when a person falls from his own height
Developments affect resorptive implants based on biodegradable matrix, bio-glass and bioceramics, all this should improve the quality of surgical treatment and contribute to the timely recovery of patients after injury. [15, 16,17].
An important aspect of bone tissue regeneration is that the ratio of cortical and spongy of the bone changes during life and is directly dependent on the activity of the lifestyle, the nutrition, general health and environmental factors.
All these factors lead to increased bone fragility and contribute significantly to increased fracture risk [22].
Mechanical and biological properties of hydroxyapatite/ tricalcium phosphate scaffolds coated with poly (lactic-co-glycolic acid).

SEM model Hitachi SU8230 was utilized to determine surface or cross-section properties.
Cohesive failure of NC/TPS at the surface of the stud (1) and NC film (2) Mechanical Properties.
Standard Test Method for Tensile Properties of Plastics (D638-14).
Standard Test Method for Tensile Properties of Thin Plastic Sheeting (D882-12).
Native Cellulose: Structure, Characterization, and Thermal Properties.

The modern power transformers has subjected to different types of faults, which affect the continuity of power supply which in turn causes serious economic losses.
Among the fault diagnosis methods, the hybrid technique of Particle Swarm Optimization (PSO) with Support Vector Machine (SVM) learning algorithm is simple conceptually derived and its implementation process is faster with better scaling properties for complex problems with non linearity and load variations but performance factor related to accuracy has a declined value in case of correlations implicit .
Power transformer has been subjected to various types of fault as they are normally exposed to electrical, mechanical, thermal and environmental stresses.
It is well known that overheating, arcing, partial discharge, winding circulating currents, and continuous sparking are the main factors in deteriorating transformer condition by developing certain dissolved gases in the insulation oil.
Chu, Support vector machines based fault diagnosis for turbo-pump rotor,Mechanical Systems and Signal Processing, vol 20, no 4, pp. 939–952, 2006

Different choices can be made on coding of projected light: these choices affect both acquisition speed and quality of point clouds [10].
During acquisition then, there may be side effects that go to affect quality of collected data by amplifying optical noise and disturbance [13].
It is therefore necessary to introduce corrective parameters and scale factors that take into account distortions in ideal model (Pin-Hole Model) of camera [20].
Magnesium alloys offer interesting mechanical properties linked to a low specific gravity, which gives to the structure a great relief, as opposed to an alloy steel.
The unique properties of aluminum make it an ideal material for use in conventional and innovative applications.