Modeling of liquid flow in surface discontinuities

Polymer composite and metallic materials have found wide application in various industries such as aviation, rocket, car manufacturing, ship manufacturing, etc. Many design elements need permanent quality control. Ensuring high quality and reliability of products is impossible without effective nondestructive testing methods. One of these methods is penetrant testing using penetrating substances based on liquid penetration into defect cavities. In this paper, we propose a model of liquid flow to determine the rates of filling the defect cavities with various materials and, based on this, to choose optimal control modes

Determination of the Depth of Closed Blind Cracks in Non-metal Check Samples and Test Panels for Penetrant Testing

Check samples and test panels are used to quality assessment and comparing sensitivity of sets of penetrant material. Authors made research in field of manufacturing non-metal test-objects with specified parameters, such as length a width. The paper considers a technique to determine the depth of blind closed cracks in check samples and non-metal test panels for penetrant inspection with a special tool to measure the depth of the undercut depth or a gauge indicator on the outboard support

Determination of the Depth of Closed Blind Cracks in Non-metal Check Samples and Test Panels for Penetrant Testing

Check samples and test panels are used to quality assessment and comparing sensitivity of sets of penetrant material. Authors made research in field of manufacturing non-metal test-objects with specified parameters, such as length a width. The paper considers a technique to determine the depth of blind closed cracks in check samples and non-metal test panels for penetrant inspection with a special tool to measure the depth of the undercut depth or a gauge indicator on the outboard support

The Method of Manufacturing Nonmetallic Test-Blocks on Different Sensitivity Classes

Nowadays in our modern world there is a vital question of quality control of details made from nonmetallic materials due to their wide spreading. Nondestructive penetrant testing is effective, and in some cases it is the only possible method of accidents prevention at high-risk sites. A brief review of check sample necessary for quality evaluation of penetrant materials is considered. There was offered a way of making agents for quality of penetrant materials testing according to different liquid penetrant testing sensibility classes

Development of the Arctic reindeer industry from the perspective of Sino-Russian green biomanufacturing cooperation

Russia’s reindeer population accounts for two thirds of the world’s total. There is a strong and resilient population of reindeer on the tundra, and reindeer herders inherit and transmit the unique culture of the north. Reindeer products have become the subject of innovative developments in the biopharmaceutical and healthcare products industry owing to their unique raw material properties. Because deer antlers and blood are widely used in traditional Chinese medicine, significant quantities of Arctic reindeer products are likely to be sold in China. Strengthening understanding of the Russian Arctic reindeer industry will help Chinese companies invest in the Russian Arctic, promote Sino-Russian Arctic cooperation on green biomanufacturing, and lead to the development of new products that promote human health