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Pure C3N4 has several shortcomings as a photocatalyst, so modifications are needed to enhance its properties and characteristics.
The nanosheet form increases the surface area by creating thin sheet structures, while Zirconium doping is chosen because it can improve the conductivity and mechanical properties of the catalyst.
Zirconium has the advantage of enhancing the properties of the catalyst.
The C3N4 catalyst has some shortcomings as a photocatalyst, and certain treatments are needed to improve its properties.
Zirconium was chosen as a doping material because it was able to improve the conductivity and mechanical properties of the catalyst.

The results of this research end up in an improvement factor of up to 100 times the reduction in resistivity, when graphene nano particles are used.
In recent years, researchers around the world have investigated the application of nano particles to improve the mechanical and electrical properties of materials.
When graphene and inorganic components are combined, an important synergistic effect occurs at the molecular level and can create new different properties of each individual component [13].
Due to the difficulty to appropriately incorporate several factors affecting the resistivity performance in ground enhancement materials when using classical methods for mathematical modeling, ANN models have been employed in this study.
Ruoff, Graphene and Graphene Oxide: Synthesis, Properties, and Applications.

Vibration resulting from the work makes tiny concrete cracks gradually extending, affects mechanical smoothly running and accuracy processing, and even makes damage scrap.
Given the above double factors are more likely to result in cracks.
Plastic shrinkage of the external effects of the main factors is the wind speed, temperature and relative humidity, the internal factors are water-cement ratio, additives, slurry aggregat ratio, concrete temperature and coagulation time
Cement is the internal factors producing stress and necessary condition of conerete-generated.
(3)As a result, construction must analyse factors, adjusting the concrete of internal and external conditions so as to avoid the formation of cracks.

This versatility allows us to produce components with specific material properties tailored to the intended application.[10] 2.
The layering technique may lead to the presence of micro-pores in components, potentially affecting their mechanical characteristics and structural reliability, especially in situations demanding robust strength and density.
Mechanical properties of tool steels with high wear resistance via directed energy deposition. 
Some factors affecting porosity in directed energy deposition of AlMgScZr-alloys. 

Human psychology in space is affected by the environment, thus human behaviors are affected , the relationship between the stimuli level of the environment and comfort level has a binary curve.
The teaching process needs to integrate theory with practice, experience the areas of psychological boundaries personally, which is the privacy of behavior space; focusing the non-intelligence factors of students, which is the cultivation of sensual thinking - such as the aspects of imaginations, emotions, and motivations, this will have a great impacts on the learning experience.
This nature , type, size of space gives people a different experience, This is an important factor affecting the sense of comfort.
In the curriculum of design, teachers let the Students should grasp the properties of a variety of common decorative materials, and assume a scene and experience it personally.
The sense of distance of color has a common affects in the architecture interface.

Problem Formulation The main concern about scratches in metallic components in aerospace industry is their effect on mechanical properties.
In the first case, it is not expected to have a significant influence on the mechanical properties of the part.
The clad layer has different mechanical properties and different corrosion resistance, so the behavior of the scratch in the clad layer is expected to be than in the base material (substrate).
The path radius and the relative depth are added to the clad layer (if any) because it is expected to also influence the mechanical properties.
Scratches with a small path radius can act as a stress concentrator, so they are expected to have a negative effect on the mechanical properties of parts.

The grain refinement by large strain deformation can significantly enhance mechanical properties of Cu-Cr-Zr alloys without remarkable decrease of electrical conductivity [1-3].
The mechanical properties were evaluated by the tensile tests on Instron 5882 at room temperature with an initial strain rate of 3x10-3 s-1.
Mechanical properties.
Note that mechanical properties and tension behavior of the present Cu–Cr–Zr alloy and a pure Cu [12] are almost the same.
Keshavarz, Microstructural evolution, mechanical properties, and strain hardening behaviour of ultrafine grained commercial pure copper during the accumulative roll bonding process, Mater.

Geometric properties of walls.
Material properties.
Material properties in Table 2 are assigned to the related finite elements shown in Fig. 4.
Since the number of nodes on the top surface varies due to different meshing, total applied force is not same for all wall models, but this does not affect the desired material properties for this linear elastic problem.
The parameters used are importance factor I=1.4, earthquake zone factor Ao=0.4, spectrum coefficient S=2.5, ductility factor Ra=2.0.

Peng et al. verified the MCD method in theory and presented a matrix formula using modal vector difference before and after damage to evaluate the damage factors of structures [5].
Fortunately the origin location of the CS will not affect displacement calculation result.
The section size of each member is 20 mm × 20 mm, and Table 1 shows the material properties.
Table 1 Material properties of the frame Material type Elastic modulus E [MPa] Poisson’s ratio ν Density ρ [kg/m3] Steel 2×1011 0.3 7800 For the simplicity, it is hypothesized that the damage will only reduce the local elastic modulus by damage factor D and will not change the mass and section shape [5].
Yam: Mechanical Systems and Signal Processing Vol. 21(2007), p. 2198-2211

Introduction Reinforced concrete is the main building material in the construction of buildings and structures for various purposes due to its properties such as durability, high resistance to static and dynamic loads, resistance to weather impacts, low operation costs [1].
The first group of limiting states, associated with the structures bearing capacity exhaustion, evaluates safety taking into account such factors as rare spontaneous effects not stipulated by the normal operation conditions, gross errors in all life cycles of the structure.
What way these calculated and admissible parameters values ​ will affect in the long-term operation course with the material properties deterioration and the sections wear is unknown.
In the general case, the limiting states of the structures used should not be determined by the force factors, but by the limiting deformations.
Murashev, Tremendoustomato, the stiffness and strength of concrete, the Publishing house of the Ministry of construction of enterprises of mechanical engineering, Moscow, 1950