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M Casals [4] explains that, researchers analysed 3647 errors in 68 buildings, defects were settled in 3 categories –location, sub-contractors involved, affected building element .it refers failure is due to poor workmanship by subcontractors and the location affected mostly is roofs and floors.
L Sousa [6] observed that, this study looked at two types of stone in Portugal to see how these factors & quality of these stones by analysing mechanical properties, weathering effects, fracture patterns.
Roofs: For bigger buildings in particular, steel trusses, beams, and decking may be common, which affects the percentage overall.

Polyetheretherketone (PEEK) has been considered as a suitable polymer in such coatings based on its biocompatibility and mechanical stability [4].
Among biomaterials with bioactive properties, bioactive glasses (BGs) are well known for their ability to interact with biological fluids inducing the formation of a hydroxyapatite (HAp) layer on the surface, which induces effective attachment of bone in vivo [5].
Among the elements that posses a beneficial effect, boron (B) is very interesting for its ability to stimulate wound healing in vivo, to release growth factors and cytokines, to increase the extracellular matrix turnover and for its role in bone physiology and angiogenesis [7, 8].
XRD analysis (Fig. 1c) confirms the presence of hydroxyapatite already after one day of SBF treatment. 45S5-B1 and 45S5-B3 glasses showed the same behaviour, which indicates that the presence of B2O3 does not modify the bioactivity of 45S5 glass and that it can substitute both SiO2 and P2O5 without affecting the glass reactivity.
Immersion tests in SBF demonstrated thus that incorporation of boron to the 45S5 glass composition does not affect its reactivity in SBF solution.

The surface charge of GNPs can be altered by factors such as pH, ionic strength, and the presence of charged species in the surrounding solution.
However, a few factors, such as variations in thickness, wavelength, and purity, For the mixture of GNP & SiO2 NPs, the orange line representing the 90:10 GNP to SiO2 ratio showed the lowest transmittance %.
Ali, Towards hybrid nanofluids: preparation, thermophysical properties, applications, and challenges.
Addali, A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties.
Amirtham, A review on preparation, characterization, properties and applications of nanofluids.

Therefore, it is necessary to make relevant research on this factor.
As a near alpha titanium alloy, Ti-600 alloy was designed for components used in turbine engines at 600℃, its tensile properties at ambient temperature and at service temperature, thermal stabilities, oxidation properties, and fatigue properties have widely been investigated by several researchers [2,3].
However, the thermal stability and high cycle fatigue property for the alloy with 100% b transformation structure will be poor, which will also affect the actual use of the alloy.
Guo, Tensile and creep properties of Ti-600 alloy, Trans.
Wu, Effect of Fe addition on microstructure and mechanical properties of Ti-25V-15Cr-2Al-0. 2C alloy, Trans.

Proper design of bearings is among factors of controlling material flow in this process and has an important role in scrap rate reduction.
Proper design of bearings is among important factors in the control of material flow in direct extrusion process.
This method doesn’t affect stable time steps, and also exerts more precise force for compensating penetration.
One of the important factors in bearing design is uniformity of material flow out of the die.
Middleditch: Bearing Length for Extrusion Dies: Rationale, Current Practice, and Requirement for Automation, Journal of Mechanical Processing Tech.

Mild steel possesses unique properties that enables their continual use in engineering applications such as being recyclable, ease of fabrication, adjustable metallurgical, mechanical and physical properties, low cost and ready availability [1, 2].
The physical and mechanical properties of aluminum can be modified precisely to the specific demands of various applications.
Research on plant extracts are promising but have been hampered by their biodegradability, short shelf life and poor adsorption properties.
The values of the mean square ratio are greater than the theoretical significance factor thus the statistical relevance factors are relevant.
Obot, Inhibitive properties, thermodynamic and quantum chemical studies of alloxazine on mild steel corrosion in H2SO4, Corros.

There are many popular cutting tool edge preparation process method, According to the principle can be divided into mechanical vibration, nylon brush friction, chemical reaction, electrolytic strengthening, abrasive grinding, etc.
However, when using the conventional electrolytic polishing equipment to strengthen the cutting edge, need to choose electrolytic parameters according to experience, but there are so many parameters affecting the quality of electrolytic polishing and the instability of the electrolytic environment, the actual process is not easy to obtain a stably electrolytic effect.
This experiment is a single factor experiment because electricity consumption is the only experiment variable, so each group tests for three times and then averages its results after measuring their radius of cutting edge.
Reference [1] YAN Xianguo, Electrolytic Strengthening Technology of Cutting Edge of High-speed Steel Taps , J.Journal of Mechanical Engineering. 45 (2009) 203-207
Experimental Research on Cutting Property of High-Speed Steel Tap with Electrolytic Strengthening, J.

Introduction Because of their excellent aesthetic properties, ceramics are becoming more common in the use of dental restorations.
It is known from different studies, that various factors and influences [1-6] affect the construction of the restoration.
The material properties of the bi-laminar disc and the support material are displayed in Table 1.
Table 1 Material Properties of Dental Materials.
The same material properties of this material are outlined in Table 1.

Coatings obtained from this electrolyte are characterized by improved physicochemical and mechanical properties [5].
We studied such characteristics of electrolytic deposits as metal current output, the throwing power of trilonate electrolytes and some properties of the obtained coatings from zinc alloys with copper, stibium, cobalt, manganese and lead (Tables 1 and 2).
Where - the primary current distribution depending on the geometric factors of the electrolyzer (in our case ); - the distribution of metal on the cathode in relative units, equal to the ratio of masses of deposits in the near and far cathodes.
The inclusion of non-metallic particles in electroplating causes a number of specific properties of the latter, in particular, high residual resistivity, microhardness, corrosion resistance (Table 2).
Alloying zinc coatings with metals such as manganese, stibium, lead, cobalt, and copper leads to a significant structure refinement, a decrease in porosity and internal stresses, as well as a smoothing of the surface topography of the deposits, which improves their physical and chemical properties.

Since PLA has the similar mechanical properties and processing properties with polystyrene (PS), it becomes the most potential alternative of the conventional cushioning packaging materials [4-5].
In this paper, the form was obtained by hot-press forming and the properties of the material were measured.
Physical and structure properties Expansion ratio was calculated by dividing the increased height of the foams by the height of the mold.
From the experimental results this maybe the significant factors for foam.
However, when pressure increased more than 15MPa, too much pressure affect the growth of the bubble, but this change isn’t as clear as before.