The article reviews the use of air flow barriers, air ejectors and air valves for reducing air volume losses and aerodynamic drag. Increased of scope of underground works causes proportional increase of the amount of air in the ventilation network of solders along with complication of mountain conditions. It also describes ventilation methods in difficult mining and technological conditions when ventilating mine solders, the distribution of air flows in the ventilation network by achieving optimal values of such indicators as air flow rate, pressure, change in air speed and pressure depending on the sectional surface of the solder.
| Mualliflar | E. Sh. Musurmanov |
|---|---|
| Jurnal | Илм-фан ва инновацион ривожланиш |
| Nashr sanasi | 2023-04-27 |
| Jild | 6 |
| Son | 1 |
| Betlar | 24-31 |
| Til | en |
| DOI | 10.36522/2181-9637-2023-1-4 |
DOI: 10.36522/2181-9637-2023-1-4 · Maqolaning asl sahifasi
This paper reviews energy parameters of rock fractures made using a wedge-shaped tool. The paper provides diagrams of distribution of forces and stresses under the impact of a wedge-shaped tool and stress components…
This article examines the technology of production of special clothing designed for children during the treatment of orthopedic diseases, in particular such a disease as hip dislocation, analyzes the existing in our…
Safety and reliability of medical devices are becoming more emphasized as the time passess. Crisis situations such as COVID-19 have shown the negative eff ects that can be brought upon by lack of medical device…
The article deals with the concepts of scientific novelty, relevance and practical significance of the study. These components of the study are considered in detail, the need for their inclusion in the content of a…
This scientific piece of work shows findings from tests of the technology designed for remote determination of the soil moisture in the use of drip irrigation system in Samarkand region. The average annual rainfall of…
The author writes about the necessity and importance of the correct composition of the title of a scientific article. The article emphasizes that the headlines determine the relevance of the information search results…
This article investigates the impact of travel information on transport choice behavior and the impact of travel time display. To this end, we estimate linear regression models using data from the Mobility Survey, which…
This article provides information on the presented vacuum steaming method in place of the emulsifying method which is used to rewind raw silk. This method, envisages the use of a modern vacuum steaming machine of the…
Registration of malignant tumors is one of the important parts of oncology service and organization of fight against cancer. It is impossible to plan and further develop the oncology service without relying on reliable…
This article analyzes innovations at the national level and factors influencing it at macro level. Multivariate regression equation was used to take the volume of innovative products and services as well as the numbers…