Wszystkie pola: Sathya, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Study of physico-chemical parameters and phytoplankton diversity of Ousteri lake in Puducherry
Autorzy:: Dhanam, S.
Sathya, A.
Elayaraj, B.
Powiązania:: https://bibliotekanauki.pl/articles/1191240.pdf
Data publikacji:: 2016
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Ousteri lake
Physico-chemical analysis
Phytoplankton
Opis:: The present study was carried out in the Ousteri lake (Puducherry State) from October 2013 to September 2014. The samples were collected during morning hours and were analysed monthly for physical, chemical and biological parameters. The various physico-chemical parameters like Water temperature, pH, Free CO2, Dissolved Oxygen, Turbidity, Electrical conductivity, Total dissolved solids, Total alkalinity, Chloride, Phosphate, Nitrate, Biological oxygen demand and Chemical oxygen demand were analyzed. Results have shown an increased concentration in physico-chemical parameters is more in summer compared to other seasons. The plankton studies were noticed that a total of 34 species belonging to 26 genus under the 4 classes. Among these, Cyanophyceae comprised of 15 species (belonging to 11 genera) followed by Chlorophyceae 9 species (belonging to 7 genera), Bacillariophyceae 7 species (belonging to 6 genera) and Euglenophyceae 3 species (belonging to 2 genera) were recorded. During the study it was found that Cyanophyceae algal growth is dominated over Chlorophyceae, Bacillariophyceae and Euglenophyceae.
Źródło:: World Scientific News; 2016, 54; 153-164
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A comparative laboratory investigation into the role of geosynthetics in the initial swell control of an expansive soil
Autorzy:: James, Jijo
Vijayasimhan, Sivapriva
Srinivasan, Hemavathi
Arulselvan, Javasri
Purushothaman, Sathya
Paramasivam, Murali
Powiązania:: https://bibliotekanauki.pl/articles/396104.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: swell of soil
expansive soil
volume change in soils
geosynthetic materials
layering
comparative investigation
pęknięcia
gleba
zmiana objętości
materiały geosyntetyczne
warstwy
badania porównawcze
Opis:: Volume change in expansive soils due to the intervention of water causes swell. A laboratory investigation using two different geosynthetic materials was designed to minimise the swell characteristics. The influence of three parameters, being geosynthetic material [Secutex (ST) and Combigrid (CG)], orientation (horizontal and vertical), and number of layers (1, 2, and 3) on the swell of an expansive soil was studied to better understand the potential for geosynthetics in swell control. The study on the immediate swell characteristics (limited to 24 hours) helps in gaining confidence in the use of geosynthetics in the swell control of expansive soils. From the investigation results, it was found that all three parameters, being type of material, orientation, and number of layers influenced the swell control of the soil. When two layers of ST and CG were placed both vertically and crossed, they reduced the swell of the virgin soil by almost 60% and 44%, respectively. It can, therefore, be concluded that geosynthetics can play an effective role in the swell control of expansive soils.
Źródło:: Civil and Environmental Engineering Reports; 2019, 29, 4; 18-40
2080-5187
2450-8594
Pojawia się w:: Civil and Environmental Engineering Reports
Dostawca treści:: Biblioteka Nauki

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