Výsledky vyhledávání - "S. A. Umoren"

Response of Juvenile Clarias gariepinus to Varying Dietary Levels of Ionotropic Gelated Chitosan Nanoparticles Synthesized from Wasted Crab Shells

Autor: S. I. Umanah, S. K. Umoren, I. U. Udo

Publikováno v: Asian Journal of Fisheries and Aquatic Research. :32-41

Background: Crab shells lie wasted globally after the extraction of the edible soft tissues. Chitosan nanoparticles (CNPs) derived from these shells have the potentials to revolutionized aquaculture. Aims: Evaluated the effects of CNPs on water quali

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9e8ac8ef364ffb8b0277df0c1953416f
https://doi.org/10.9734/ajfar/2022/v16i230369

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Akademický článek

Effluents and Solid Waste Analysis in a Petrochemical Company- A Case Study of Eleme Petrochemical Company Ltd, Port Harcourt, Nigeria

Autor: A. U. Israel, I. B. Obot, S. A. Umoren, V. Mkpenie, G. A. Ebong

Publikováno v: E-Journal of Chemistry, Vol 5, Iss 1, Pp 74-80 (2008)

Effluents and soil samples where sediments from the treated effluents are dumped were analyzed for physicochemical properties, metallic and non-metallic ions. These parameters were compared with established international standard (FEPA). Effluents we

Externí odkaz: https://doaj.org/article/3bcb66d47030412da92bcc33b3520bcb

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Akademický článek

Corrosion Inhibition of Aluminium Using Exudate Gum from Pachylobus edulis in the Presence of Halide Ions in HCl

Autor: S. A. Umoren, I. B. Obot, E. E. Ebenso

Publikováno v: E-Journal of Chemistry, Vol 5, Iss 2, Pp 355-364 (2008)

The anti-corrosive effect of Pachylobus edulis exudate gum in combination with halides ions (Cl–, Br– and I–) for aluminium corrosion in HCl was studied at temperature range of 30-60°C using weight loss method. Results obtained showed that the

Externí odkaz: https://doaj.org/article/a9acf56901e542b4a25e1260696365c9

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Akademický článek

Production of Cellulosic Polymers from Agricultural Wastes

Autor: A. U. Israel, I. B. Obot, S. A. Umoren, V. Mkpenie, J. E. Asuquo

Publikováno v: E-Journal of Chemistry, Vol 5, Iss 1, Pp 81-85 (2008)

Cellulosic polymers namely cellulose, di-and triacetate were produced from fourteen agricultural wastes; Branch and fiber after oil extraction from oil palm (Elais guineensis), raffia, piassava, bamboo pulp, bamboo bark from raphia palm (Raphia hooke

Externí odkaz: https://doaj.org/article/5af41f36ec5c4ee7a08ff133a44265ba

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CORROSION INHIBITION OF ALUMINUM ALLOY 3SR IN HCl BY POLYVINYLPYRROLIDONE AND POLYACRYLAMIDE: EFFECT OF MOLECULAR STRUCTURE ON INHIBITION EFFICIENCY

Autor: S. A. UMOREN

Publikováno v: Surface Review and Letters. 16(06):831-844

The inhibitive performance of two water soluble polymers–polyacrylamide (PA) and polyvinylpyrrolidone (PVP) on the corrosion behavior of aluminum alloy 3SR in HCl solution was investigated using weight loss, hydrogen evolution, and thermometric met

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______645::a1f52da9447b82bd4de267587cbf9937
http://www.worldscinet.com/cgi-bin/details.cgi?type=html&id=pii:S0218625X09013384

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POLYVINYLPYROLLIDONE AND POLYACRYLAMIDE AS CORROSION INHIBITORS FOR MILD STEEL IN ACIDIC MEDIUM

Autor: S. A. UMOREN, I. B. OBOT

Publikováno v: Surface Review and Letters. 15(03):277-286

The corrosion inhibition of mild steel in 1 M H2SO4 in the presence of polyvinylpyrollidone (PVP) and polyacrylamide (PA) as inhibitors at 30–60°C was studied using gravimetric and gasometric techniques. The inhibition efficiency (1%) increased wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_______645::1df6863b25cc78afe8fcddb10d8d7cca
http://www.worldscinet.com/cgi-bin/details.cgi?type=pdf&id=pii:S0218625X08011366

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