English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

In this paper, we propose results of research on the establishment of presence of components in water of the southern cities of the Republic of Kazakhstan such as carbonate hardness, noncarbonate hardness and total hardness, content of free carbonic acid and impurities of different ions of iron (twoand three-valent), sulphate and chlorine ions, pH value. When the research course parameters of heat carrier (water): carbonate hardness, non-carbonate hardness, and the total hardness, content of free carbonic acid ions and HCO3 -, pH value, content of two and three valence iron ions, sulphate and chloride-ions in water were established, indicators of corrosion were calculatedby the value, which we concluded about the strength of corrosive effect on steel foundation of pipelines.

Role of Components Containing in Water on the Formation Corrosion - scale Deposits in Pipelines of Heating Systems