Search results

Introduction Polycrystalline transparent ceramics are important materials for optical applications in extreme conditions where other optical materials do not meet the requirements for high thermo-mechanical properties (polymers, glass) or are difficult and expensive to produce in large and complex shapes (single crystals).
Since the discovery of the transformation toughening [6], partially yttria-stabilized tetragonal zirconia has become one of the major high-performance ceramic materials due to its excellent mechanical properties [7, 8], but it has received comparatively little attention with respect to its optical transmission.
The linear intercept grain size was corrected by a factor of 1.56 to yield the true grain size [16].
The highly alkaline pH ensured that a small pH change did not affect the nanosuspension stability.
Trunec, Effect of grain size on mechanical properties of 3Y-TZP ceramics, Ceram.

Develop Heat-Resistant Stalowych in Indoor Heat-resistant Sitall coatings for the protection of nichrome alloys from high-temperature corrosion must have a complex of physical, mechanical and thermomechanical properties, in particular high adhesion strength of the coating with nichrome, as well as resource predetermined by heat and heat resistance.
In this regard, when developing the optimal compositions of these coatings with the listed properties, it was necessary to identify their optimal compositions.
Boric acid and clay Watches-Yarskaya place of birth are introduced to improve the rheological properties of slurries coatings.
As is known, the CTE of coatings is affected primarily on their temperature resistance.
The dependence of thermal resistance and heat resistance of coatings on the composition and technological factors was revealed.

The tensile properties of sheets with different thickness and different materials including the plasticity parameters are determined in the first set of experiments.
The sheet metals which constitute tailor-made blanks have different thicknesses and/or material properties and, thus, deform differently.
In order to understand the contribution of the different factors that influence the formability, it is important to isolate each of these effects and study them separately.
Methodology In order to investigate the effects of sheet thickness on the mechanical properties and forming behavior of these two alloys, 2024-T3 and 7075-T6 sheets with four different thicknesses were selected for the study.
Table 1 shows to what extent the tensile properties of the materials change with sheet thickness.

Keywords: Response, masonry, building aggregate, row conglomeration Introduction Problem Overview A building aggregate is constituted by an assemblage of masonry buildings which is a result of an articulated, but not unitary origin, due to multiple factors that determine the evolution of its characteristics in time.
As frequently seen in Italy in many historical town centres subjected to earthquakes, the potential interactions due to the structural contiguity within the aggregates is one of the main factors influencing the seismic response and damage mechanisms.
Furthermore, the analysis of the constructive technique and of its workmanlike application is needed to examine the mechanical characteristics of the construction materials.
Other vulnerability factors should also be investigated, such as the characteristics of the open spaces in between buildings, which may affect the relationship between the dimensions of the internal areas with the front portion of the building, or the relative height of adjacent buildings and the degree of connection between them.
The material is characterized by properties typical of undressed stone masonry with facing walls of limited thickness and infill core, with elastic modulus E=1450 N/mm2, shear modulus G=108 N/mm2, specific weight ρ=23 kN/m3, compressive strength fm=3.2 N/mm2, shear strength τm=0.05 N/mm2.

In order to verify this critical factor of low density CNTs, the next experiment is made.
The formation of graphene stacks are affected by the carbon source in the deposition.
The modification of carbon nanospheres could make carbon nanotubes possess a lot of new properties, such as enhancement of field emission properties.
Dai, Self-oriented regular arrays of carbon nanotubes and their field emission properties, Science, 283 (1999) 512-514
Zou, Effects of plasma treatment on microstructure and electron field emission properties of screen-printed carbon nanotube films, Physica E, 36 (2007) 28-33

Mechanical parameters of asphalt mixtures, cement stabilized granular, and granular are measured in laboratory.
Modeling methodology In simulations, factors such as pavement surface deflection, bottom strains of asphalt layers, maximum vertical strain of the subgrade, maximum shear strain and stress of asphalt layers are taken into considerations[6,7].
（Eq. 2） where k=m k≠m Pavement effective radiations are determined by many factors such as the temperature of the ground and the air, the air moisture and the transmittance etc..
There are, of course, some other factors affecting the maximum strain of the asphalt layers, and it’s quite complex.
Fig. 10 Temperature field of pavement 2 Fig. 11 Road rut From figure 10, we can see that factors such as air temperature, wind speed, sun radiation conditions do have significant effect on temperature field of the pavement surface.

Humidity sensing properties including impedance relative humidity (RH) and current RH characteristics were investigated.
Therefore, these problems show the needs to improve the physical and structural properties of these materials.
The evacuation of the chamber is performed by a mechanical pump.
Another important issue regarding the sensing properties is the response time.
The pp-TEOS film based sensor exhibited better sensing properties in terms of sensitivity and linearity.

The risk chain, a common technical tool for analyzing risks, is used for analyzing the relationship between risk factors and losses [5].
Actually, security risk chain is a framework for analysis which includes security risk factors, environments for security risk factors, the mutual effects between security risk factors and the environment, the results of the effects, and the consequences resulting from the results.
On the first hand, large public buildings are a complex system with the feature of various factors, randomness, nonlinearity, fuzziness.
One security risk factor may cause the change of other factors and even the change of the whole system.
Second, optimizing construction technologies and selecting reasonable safety factors.

The size, range, payload capacity, and applications are some other factors that further differentiate the drones.
Moreover, the number of rotors also affects the payload capacity of a drone.
Farmers can map the affected region to find other parts of the field that may need more care, such more irrigation or fertiliser.
Use of drones in the private properties is a big threat to privacy.
Increase in the payload affects the battery life and flying range drastically.

Furthermore, in the last years, the importance of compatibility with ancient materials and the need for sustainability have become crucial and, therefore, several strengthening systems have been developed with different degrees of mechanical efficiency, compatibility properties and development of sustainable design processes.
A parametric analysis is finally conducted for assessing the most significant design parameters, which affect the efficacy of FRP vs.
It can be noted that masonry with poor mechanical properties obtains better confining effects; in particular, passing from 5 to 25 MPa of fmd0, the strength gaining decreases up to almost 65% for glass fibres, while about 32% for basalt wrapping.
A parametric analysis has been developed for investigating the most significant design parameters which affect the efficacy of FRP vs.
Aiello, FRCM-confined masonry columns: experimental investigation on the effect of the inorganic matrix properties.