List of publications on a keyword: «pressure»

In article there are discussed the basic results of theoretical investigating continuous ultra-dispersed powder materials pressing process for obtaining lengthy products with nano-crystal structure. Within the framework of the hypothesis about similarity under stress conditions in compressible and incompressible materials in the pressing channel, the pressure distribution along the pressing channel is established. Using G.M. Zhdanovich equation with new material density distribution boundary conditions along the length of the pressing channel is found.

The article discusses some of the problems that occur during the operation of the hydraulic system on logging machines. In the course of fault analysis and practical experience, options for on-site remediation or minimal repairs are suggested to ensure transport to the repair boxes.

He article deals with the problems of practical implementation of the requirements of the current legislation in the field of industrial safety and labor protection in respect of heat facilities (hereinafter – boilers). A number of boiler houses are classified as hazardous production facilities of hazard class III because they use equipment operating under pressure exceeding 0.07 MPa. A dangerous factor in the workplace staff is the increased noise level. Measures to neutralize this factor are in conflict with the requirements of industrial and fire safety. The lack of engineering tools to ensure compliance with hygienic standards without violating the requirements of industrial and fire safety, creates a problem that requires a scientific approach in the search for possible solutions.

The choice and justification of the criteria and indicators of measuring instruments (SI) is an important scientific task, the solution of which to a certain extent will allow to systematize SI by measurement areas. When investigating the criteria, there are certain difficulties, since along with the metrological and technical characteristics of SI, it is necessary to take into account a variety of factors affecting the measuring instruments.

To date, the software market has dozens of diverse databases (DB). The application of the database affected a large number of areas of human activity, including metrological support for many large enterprises. The development of an algorithm for creating a database is necessary to automate the choice of measuring instruments.

The features of greasing and blowing of press-forms for casting under pressure with the purpose of foundings upgrading by the decline of gases from greasing combustion due to the application of a thin, uniform layer, which also eliminates violations of the surface layers of castings are represented in the article. This is achieved by the use of noiseless electric spray guns with a nozzle for spraying with three positions for different torches.

Preschool age is an important period for the development of the cognitive needs of the child which finds expression in search activities aimed at "opening" of the new productive forms that develop thinking. Algorithms will help teachers to approach creatively to the development of the orienting-investigative activity in the course of acquaintance with the phenomena of animate and inanimate nature, as well as the teaching of ecological culture. They are built on the principle of developing education, collaborative practice of mentor and child.

The article discusses the role of physical activity in our body . Research will enable us to identify the main patterns and especially the influence of various physical activities and their sequence in the session on the functioning of the cardiovascular system .

This article systematizes the data on operational characteristics of diesel engines and its components. The authors defined the ways to achieve optimal relationships between the main operational characteristics.