Optimal placement of issues supply the diffusers and exhaust air ducts general ventilation

At an article consider issues of improving industrial ventilation by optimal location of supply and exhaust devices General systems. Article include scheme of air movement by using different diffusers and exhaust devices and formulas to determine their optimal placement

Evaluation of data representation

In this article the problem of statistically reliable sample size evaluation is considered. The two step procedure proposed by C. Stain allows to determine the sample size. The C. Stain's procedure was used for creating the program `The evaluation of data representation'. The program is a part of the program shell of `Servis-Base' data-base software, developed by the authors. The program was used for the evaluation of the sufficient quantity of measurings in experiments for the determination of the proteinase B.intermedius productivity

The advantages of using textile air ducts to provide a microclimate of premises

The article is about textile ducts and diffusers. Textile ducting from the moment of production is also the diffuser. The calculation of the textile diffusers, as well as modeling of air flow, produced with the help of a program PRIHODASW. The verification obtained in the computer simulation results with tests in the blanket experimental chamber is carried out

The advantages of using textile air ducts to provide a microclimate of premises

The article is about textile ducts and diffusers. Textile ducting from the moment of production is also the diffuser. The calculation of the textile diffusers, as well as modeling of air flow, produced with the help of a program PRIHODASW. The verification obtained in the computer simulation results with tests in the blanket experimental chamber is carried out

The infrastructure of public catering in the context of tourist city space development

To assess the impact of environmental factors on the activities of catering enterprises of the Belgorod region and the quality of customer service, the authors proposed a method using STEP-analysis and SWOT-analysis. The analysis of environmental factors was carried out on the basis of the expert evaluation results conducted in two stage

Transformation of museum product

Today, each museum needs to develop an active strategy of market development, which is preceded by a comprehensive analysis of potential consumers of the museum product, on the basis of which the directions of development will be proposed. The conducted research allowed us to reveal a number of problems which are connected with necessity of transformation of the museum product providing satisfaction of visitor’s requirements and, at the same time, increase in the income of the museu

Spatial structure of phosphorus-containing heterocycles. 23. 2-Phenoxy-1,3,2-dioxaphosphorinanes with four-coordinate phosphorus

1. The change in the valence state of the phosphorus atom influences the orientation with respect to the P-O(Ph) bond in 2-phenoxy-2-oxo(thiono)-1,3,2-dioxaphosphorinanes. 2. An orthogonal conformation is realized in the O-Ph fragment of the compounds investigated, regardless of the hybridization of the phosphorus. © 1980 Plenum Publishing Corporation