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Wyszukujesz frazę "Kumar, S. Dharani" wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Ballistic studies of lightweight materials - a review
Autorzy:
Balaji, S.
Kumar, S. Dharani
Moorthy, K. Chandra
Javeed, M. Mohamed
Dharanidharan, D.
Tematy:
lightweight materials
ballistics
heat treatment
numerical studies
materiały lekkie
balistyka
obróbka cieplna
badania modelowe
Pokaż więcej
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Powiązania:
https://bibliotekanauki.pl/articles/95205.pdf  Link otwiera się w nowym oknie
Opis:
A recent development in the material studies provides beneficial application of lightweight alloys such as aluminium, magnesium as well as composites and metal matrices. The alloys are experimentally improved by increasing hardness in the ballistics testing using projectiles,makes them viable for the areas such as aerospace, military, defence, automobiles and so on. So the study is made on different approaches. First, by comparing different types of non-ferrous alloys and projectiles regarding sizes, structures. Second, the materials with heat treatment are also studied for investigating the hardness property by overcoming successful penetration on non-ferrous alloys. Third, material to be improvised by use of numerical studies such as 3D models, empirical models and software such as ANSYS, ABAQUS and AUTODYN, etc. Finally, the aim of this paper is to review the recent progress ballistic studies of lightweight materials and to provide a best choice of material for further on-going research.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multivariate approach to evaluate the factors controlling the phytoplankton abundance and diversity along the coastal waters of Diu, northeastern Arabian Sea
Autorzy:
Kumar, P. Sathish
Venkatnarayanan, S.
Pandey, Vikas
Ratnam, Krupa
Jha, Dilip Kumar
Rajaguru, S.
Dharani, G.
James, R. Arthur
Atmanand, M.A.
Tematy:
TSS
Phytoplankton
Dinoflagellate
Chlorophyll a
Nutrient
Monsoon
Pokaż więcej
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Powiązania:
https://bibliotekanauki.pl/articles/62692809.pdf  Link otwiera się w nowym oknie
Opis:
The present study investigated the phytoplankton assemblage and diversity with physicochemical parameters of Diu coastal waters in different seasons during 2018–19. During the study period, 61 phytoplankton species comprising diatoms (50 sp.), dinoflagellates (8 sp.), and cyanophyceae (3 sp.) were recorded. Diatom was found to be a major community and contributed 79 to 99% of total phytoplankton abundance. Reduction in dinoflagellate and dominance of pennate-diatoms were observed during the monsoon. Chlorophyll-a concentration also showed a similar trend and decreased during the monsoon. However, the phytoplankton abundance was low particularly during the monsoon which might be due to the elevated total suspended solids (TSS) load. Canonical correspondence analysis revealed that diatoms were able to survive in high TSS with the support of high nutrients; while dinoflagellates were limited due to those conditions. Overall, the reduction in phytoplankton abundance, diversity, and biomass was recorded due to the elevated TSS input along the coastal waters of Diu.
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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