In the 21st century, the change of the international marine strategic situation provides both opportunities and challenges for China's strategy of building a powerful marine country. Against this background, China has implemented the strategy of the “21st Century Maritime Silk Road”. Focuses on the analysis of the achievements and challenges of China's “21st Century Maritime Silk ...

3D modeling was carried out to determine the optimal diameters of grinding wheels for backing the back surface of the tooth of a disk gear cutter with a module m = 1...16 mm. A linear relationship has been established between the height of the tooth, the angle of the flute of the cutter and the diameter of the grinding wheel. It has been proven that the formation of a “saddle” ...

For regenerative medicine, a paste for 3D printing of tissue-engineered frames based on sodium alginate and hydroxyapatite has been obtained, which combines the advantages of both materials. The optimal content of hydroxyapatite in a paste based on alginate gel is 25–33 %. With an increase in the concentration of alginate in the gel from 3 % to 5 %, the rheological properties of ...

In the paper authors compare additive manufacturing processes that use wire and processes that use metal powder. Also, there are new results of author’s investigates in Electron Beam Free Form Fabrication process.

Clustering analysis is fundamental for determining dominant discontinuity properties in rock engineering. This study proposes an improved netting algorithm for identifying discontinuity sets based on multiple discontinuity properties. The new method is believed to be a potentially useful tool for rapidly obtaining dominant discontinuity sets in rock engineering.

With the development of automation and intelligentize, sensor technology has been paid more and more attention to by scientific and technical researchers all over the world. In the numerous kinds of sensors, the optical fiber sensing technology represents the development trend of the new generation of the sensor and becomes one of the most developing hightech industries due to ...

In China, the comprehensive utilization of vanadium and titanium resource is an important scientific and technological issue. Meanwhile, energy conservation and environmental protection is much more serious than ever before. In the traditional process for vanadium extraction, the roasting process is the key step for oxidize V (III) and V(IV) to V (V) of the vanadium slag by ...

With the deepening of research on gene regulatory network, the construction technology of gene regulatory network has been relatively mature. However, according to the characteristics of gene regulatory network, it is still a problem to realize efficient reachable probability query and reachable path query among gene pairs on the constructed gene regulatory network. Therefore, ...

The Belt and Road Initiative has emerged as a highly utilized theme through which scholars have done a wealth of research in the economy, trade, and politics. This research reviewed 268 articles in the BRI value and the human capital fields over the last five years. Several research gaps and promising areas for inquiry are put forward.

The abnormal condition identification model is established based on the fuzzy Bayesian network and transfer learning for the electro-fused magnesia smelting process in this paper. The data processing problem is analyzed during the process of modeling and reasoning. The proposed method owns the better performance, which lays the better foundation for making effective safe control ...