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In the synthesis of antimicrobial hydroxyapatite doped with silver, the amount of silver is the critical element affecting its properties.
The results suggested that the optimal antimicrobial property with none or mild cytotoxicity may be produced by modulating not only the doped silver amount but also their shape and synthesis route.
Introduction Bone defects occur in a variety of clinical situations, and their reconstruction to provide mechanical integrity to the skeleton is a necessary step in the patient's rehabilitation.
However, they still lack mechanical strength, elasticity, and osteoinductive capacity.
However, the change of cytotoxicity found in Table 1 suggests that the amount and release of silver in the carrier is the primary factor determining the cytotoxicity.

Sodium also affects to the gas saturation of silumin [1, 2].
However, at the presence of such amount of silicon, silumin has reduced casting properties.
The defects reduce the performance properties of the material.
The method of electron-ion-plasma modification assumes an increase in surface properties and allows saving additives.
Krysina, Mechanical Properties and Structure of the Hypereutectic Silumin Treated by an Electron Beam, Key Engineering Materials 743 (2017) 146-150.

By analysing the subject literature [7, 9], it can be shown that the nominal volume of hydraulic accumulators is the main factor that affects the efficiency and effectiveness of suspension system operation.
With today’s advancement of computers, model discretisation for complex structures of mechanical systems presents no problem.
For the assessment of how hydraulic accumulators affect UGV suspension characteristics, a simulation model (Fig. 1) has been created which essentially consists of two sub-models: – A model of mechanical elements (full vehicle model), and – A model of the system of hydropneumatic components.
Block diagram of the UGV model The full vehicle model refers to kinematic (rotary and linear) joints that connect the model’s individual elements and mass properties, whereas the model of hydropneumatic components relates to properties and features of the suspension hydraulic system.
The member connecting the hydraulic system model and the mechanical model is a hydraulic cylinder.

These factors contribute differently towards the peak magnitude of the compressive and tensile stresses in the material.
Microstructure and Mechanical Properties.
Mechanical properties were studied by using standard 12.5 mm round tension test specimen with 62.5 mm gauge length.
The entire die forged specimens qualified the mechanical properties such as tensile strength, yield strength and hardness.
Effect of cold compression deformation on the mechanical properties of die forged disc.

The selected physical properties of the green body and sintered ZrO2-Ti composites were determined by Archimedes method.
Preparation of composites is interesting due to the possibility of controlling various properties of material.
The increase of the fracture toughness by introducing metal particles into the ceramic matrix depends on many factors.
All of these values determine the shape factors: particle elongation, curvature of grain boundary and convexity.
The titanium powder is characterized by greater values of shape factors, up to 1.6.

By using this material, the engineering properties of soil can be improved.
This mixture has a complex treatment that is usually affected by some parameters such as cement content (C.C), the physio-chemical properties of the soil, and the porosity and moisture content at the time of compaction [1-4].
The dimension and shape of the foundation are also effective factors in determining the settlement.
The soil and foundation material properties are listed in Table 1.
Table 1 Material properties used in FE analyses.

To extend their applications, some properties should be improved especially their electrical and mechanical properties like electrical conductivity and strength.
However, the dispersion of graphene in TPU phase are the important factor that need to be considered because it affects to overall properties of composites.
Thermal Properties of Nanocomposites.
Maio, Thermoplastic polyurethane films reinforced with carbon nanotubes: the effect of processing on the structure and mechanical properties, Eur.
Lu, In situ polymerization of graphene nanosheets and polyurethane with enhanced mechanical and thermal properties, J.

From the 80's, China Northeast Architectural Design and Research Institute, Tsinghua University, Zhejiang University, Tongji University and other units preliminary discussed the physical and mechanical properties of the concrete block and block wall, and also discussed the seismic performances.
Table 2 shows the Mix proportion of concrete and the physical and mechanical properties of concrete [8]. 3.
Ecological Planning Lots of factors must be put into consideration.
The following factors should be considered in river planning [7]. 3.1 Regional eco-environment Regional eco-environment is an essential factor of a region’s river eco-environment.
Preparation Process and Properties of Porous Ecological Concrete, JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY, Vol. 32, No. 17, Sept. 2010

For manufacturing of micro holes Electrical Discharge Machining (EDM) can be used, which is well-established due to its thermal working principle that allows almost force free machining independent of the material’s mechanical properties.
Experiments by Kunieda et al. [1] described basic properties of the dry EDM process.
DoE is used for the optimization of processes by acquisition of control, interference and properties data [5].
The overview contains the percentage change of targets goals caused by an increase of the factors from the lower to the upper level.
The high stability of the discharges during dry EDM is a consequence of the properties of the dielectric fluid used in the process.

Although thus method will not affect the mechanical performance, there are still two distinct flaws : 1)the fixture force will be very little because of the less contact area.
Single factor simulation table level factors 1 2 3 4 5 Milling width /mm 9 18 27 36 45 Milling depth /mm 2 4 6 8 10 The rotating speed of spindle /104r·min-1 1 1.2 1.7 2 2.3 Feeding rate/ m·min-1 2 3 4 5 6 The laws of cutting parameters affecting the milling force are shown in Fig. 9 based on the FEM simulation.
Fig.9 The laws of cutting parameters affecting the milling force The failure of the fixation of thin NOMEX honeycomb is more serious than thick one during machining because of the low rigidity.
The factors affecting milling force distribution include honeycomb height, milling force and feeding position of tool on the honeycomb components.
Coupled Thermo-mechanical Model for Metal Orthogonal Cutting Process and Finite Element Simulation[J].