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Microelectromechanical models were developed by Bent et al. [2] to predict the composite properties.
To choose the correct position of the actuator depends on many factors, such as the method of control, or due to vibrational behavior.
Physical (material) variables are associated with electro-mechanical properties of the analyzed structure with piezoelectric transducers.
Material properties depend inter alia on the structure, chemical composition, the process of manufacture.
The following optimization problems can be taken into account: – materials having different physical and chemical properties, – change of the mechanical properties of the individual layers (by changing of the fiber direction), – change of the volume fraction of the reinforcing material, – selection of a unit cell used to model homogeneous mechanical properties - such as the shape of the reinforcement in the cell, – change of the electric field [E].

The roughcast should be applied to the surface of the substrate layer to improve mortar bonding conditions, adherence to the substrate layer being one of the main properties required for a coating mortar in the hardened state.
There are several factors that can contribute to this behavioral failure, ranging from the design stage to the inadequate specification of materials, deficiency in application procedures, as well as inadequate operational procedures in use and maintenance.
The additives should aid in obtaining important properties in the fresh and hardened state, such as deformability, water retention etc.
Curing temperature and duration of wet curing are the key factors for proper curing since the rate of hydration depends on the ambient temperature in the presence of moisture, as well as depending on the quality and quantity of the cementitious materials present in the mixture.
This fact can be credited both to physical effects, due to the improvement in the rheological behavior of the mortar, and the chemical properties, due to the increase in the presence of calcium ions on the contact surface between the layers

A Calculation Method for the Coupling of Temperature and Concentration During Inconel 718 Alloy Solidification Ao Xiaohuia, Xia Huanxiongb*, Liu Jianhuac, He Qiyangd, Lin Shengxiange School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China axhao@bit.edu.cn, bhxia@bit.edu.cn, cjeffliu@bit.edu.cn, dhe_qiyang@163.com, e3120195209@bit.edu.cn Keywords: Temperature gradient; Cooling rate; Concentration; Kinetic undercooling Abstract.
Introduction Temperature and concentration are two important factors that affect the nucleation and growth of grains, and the different microstructure can be obtained by changing them.
The material properties used in our simulations are listed in Table 1.
Table 1 Physical properties of Inconel 718. [7] Property and symbol Value Liquidus temperature Tl [K] 1678 Solidus temperature Ts [K] 1643 Initial solute concentration C0 [wt. %] 5.0 Liquidus slope ml [K/wt. %] -10.5 Partition coefficient k0 0.48 Gibbs-Thomson coefficient Г [K∙ m] 3.65×10–7 Liquid diffusion coefficient D [m2∙s–1] 3.0×10–9 The composition undercooling has an inhibitory effect on kinetic undercooling, especially the concentration enrichment at the front of the solid-liquid interface strongly suppresses the increase in kinetic undercooling.
When the temperature gradient is less than the cooling rate, the temperature gradient does not affect the dynamic undercooling.

Laser shock processing (Laser Shock Processing, referred to as LSP) technology is based on high-power short-pulse laser irradiation of metal materials from the rapid vaporization of surface material to form high-temperature high-pressure plasma, because of its high-pressure shock wave expansion of the blasting in the material produced within the spread, surface and to produce plastic deformation shock layer, so as to improve the mechanical properties of metallic materials of a new surface modification technology[2].
According to the relation of power density of the laser pulse and the stress of shock wave, we could get the following relation (kPa)=0.10()Z()× I()> (4) Here,make the aluminum-K9 glass medium Z value as 1.37×10,and a as 0.1, in this case,: ()=20.7 ×() (5) The dynamic yield strength of aluminum target material valued as Ph=530，χ=0.14mm, and substitute it into equation (5), the following is the result: (6) Considering of the pulse width and energy of laser The width of the laser is a main factor that could affect the depth of the intensified layer.
Besides, with the size of the material’s increasing, the optical pump becomes uneven, which would affect the quality of the output beam[4].
As a result, series of machineries’ performance would be affected.

In such a procedure the uncertain properties (e.g.
A dimensionless correction factor � � expresses the updated value of property �relative to its initial value � � �in element �: � � � � � � � � � � � � � � � � �� � � � � � � � � � (7) The correction factors can affect one element or may be assigned to an element group.
" is the stiffness matrix of the element (group) whose properties remain unchanged
Therefore, the distribution of the correction factors ( � � ) -which define on their turn the distribution of the updated physical properties �over the FE model- is approximated by combining a limited set of global damage functions * +[2].
For both properties a realistic damage pattern is identified with the updating method.

The hydration mechanism of the cementitious material, however, could directly affect the microstructure of its hydration and hardening and the development of each kind of physical and mechanical properties of the concrete and could afterwards influence the cracking resistance property and durability etc. of the concrete.
In the early stage of hydration, NG is the governing factor.
With the advance of hydration, I and D gradually become the governing factors.

Harris defined the problem of the contact zone size with the help of a load distribution factor (ε).
A value for the load distribution factor is first assumed, and then the bearing deflection is calculated.
Instead, stiffness depends on the character and intensity of the external load, the elastic properties of the bearing element material, the geometry of the coupled parts of the bearing, the total number of rolling elements in the bearing, the internal radial clearance, deviations from the working surfaces of a bearing, and other factors.
The total number of rolling elements is a key structural characteristic of a rolling bearing, affecting its operational accuracy and performance.
Thesis, Faculty of Mechanical Engineering in Belgrade, 1987

Its efficiency affects the whole efficiency.
When designing vacuum gas circuit, first to ensure the sealing properties of the gas circuit.
Another factor should consider is the seal rings must be replaceable.
Therefore, replaceable seal ring is a key factor to consider.
(In Chinese) [4] M.Chen and J.J.Cao: Mechanical Transmission, Vol.34 (2010) No3, P.76.

The dominant factor of reform and development of objects is how to coordinate the relationship of people and machine.
The concept of architectural decoration In recent years, with the development of social economy and construction industry, building design technology has also experience a process of improvement, the use of digital technology ,as an especially feature, has become an indispensable factor in modern architectural design.
With the development of economic globalization and the arrival of the digital age,computer technology and the imformation network into the main characters of the digital technology to people’s production and life has a great influence,the building design is no exception.[2]Before the invention of computer technology,the traditional architectural decoration design was achieved mostly by hand, which greatly affect the efficiency of the design.
Autocad has extensive adaptability, it can be run on various operating system for microcomputer and workstation and wildly used in civil construction, decoration, electronic circuits, mechanical design, costume design, aerospace, light industry, chemical and many other fields.
Using multiple properties of writing tools which can draw text in the construction plan.

If the motor is driven by a voltage step signal amplitude Uc signal, the angular speed is: (7) Where, Km is the proportional gain, Tm is mechanical time constant of the motor.
The PLL linear filtering characteristics of noise.Working motor could be affected by various noise.
Random noise interference is usually caused by wind or other factors, such as mechanical friction load Noise.
Because of the PLL loop filtering properties, the PLL control system has stronger rejection ability for power frequency noise and random disturbance of the load, therefore suitable for some high load rate and big inertia of speed control application, such as the large inertia of the field work of axial piston pump motor load.