Search results

This reflects the fundamental characteristic of RFW, where the temperature is sufficient to disrupt grain bonds and cause phase transformation at the contact surface but remains below the melting point of the alloy [7].
Acknowledgement This research is funded by Vietnam National University HoChiMinh City (VNU-HCM) under grant number: C2025-20-10.

Meanwhile the cold treatment could prompt martensite to separate out ultrafine carbon, refine the grains, and obtain strengthening and toughing effect.
Drive gear products (fig.6) have large number of steps on end face with large difference in wall thickness, belonging to complex shaped parts gears.

Many novel CuO micro/nanostructures such as nanosheets, wheat grain-like and nanorods [5,6] structures have been fabricated by a range of techniques, including chemical vapour deposition, hydrothermal methods, and some solution processes.
When the initial concentration was 0.075 M, in addition to generate a large number of carambola-shaped particle with the size of 200-300 nm, there also randomly appeared square shaped CuO particles on the copper wafer substrate.

They found that the highest and lowest shear stresses having the largest and smallest lattice parameter, respectively. 2.2 Measuring solid solubility Solid solubility of the sample designation of Fe80Cr20 alloys powders could be estimated by the vegards’ formulas as showed in equation number 2 [25] and this equation or principle has been used for many researcher [6, 23, 26].
It is caused by larger volume friction of the atom samples in the grain boundaries [27, 28].

The direct roof is fine-grained sandstone, and its thickness is 14.67m.
Fig.2 Changing curves of vertical stress of measuring points Table 1 Field measurement results of vertical stress of measuring point Drilling number Relative stress peak（Mpa） coefficient of stress concentration Distance between working face and stress peak (m) Distance of mining influence(m) 1 21.5 3.3 6.5 56 6 17.4 3.8 7.3 58 12 19.2 3.2 6.5 57 17 23.5 3.6 7.5 54 19 25.5 3.4 7 57 From Table 1, it can be seen that the relative peak value of pilot abutment pressure in working face reaches 25.5Mpa, the average stress concentration coefficient is 3.4, distance between working face and stress peak is about 7m and influence scope is 56m.

For instance,per capita grain consumption, a level variable, use 395 kg as initial value during research period (2010 to 2020), referring to "national food security and long-term planning framework (2008-2020) ".
Carrying capacity assessment not only calculates optimal population numbers but ideally prompts equitable and sustainable land use in accord with naturally determined limits, which is of profound importance in urban and regional planning.

Fig. 6a shows a typical stress-strain curve, Fig. 6b – changes in maximum and minimum cycle stresses with the number of cycles.
Ciulik, Creep and Dynamic Abnormal Grain Growth of Commercial-Purity Molybdenum: D.Ph.

The number of pores increases with increasing applied voltage. 2.
The extent of melting as a function of applied voltage is indicated by the decrease in the visibility of grain boundaries (surface homogeneity).

Though the grain yield of sweet sorghum is low compared with other crop plants, it contains abundant sugar in its stalk which can be converted to fuel alcohol with an estimated production of 3 tones ethanol per ha land.
Implying sufficient nitrogen can increase the photochemical efficiency by the following facets: increase the number of active reactions centers, increase the trapped energy of the leave section and promote the quantum-driven electron movement through the electron transport chain and meanwhile reduce the lose of absorbed energy as heat dissipation, increase the size of PQ sink and at the same time increase the extent of reaction centers’ openness..

These could be attributed to grain boundary migration during thermal ageing.
After thermal ageing (Fig. 1.d), the morphology of the Rh coating changes significantly with an obvious increase of crack number and crack width (up to 2 µm).