Showing papers by "Rivers State University of Science and Technology published in 1984"
TL;DR: In this article, the amounts of ascorbic acid and total carotenoids in four fresh vegetables (fluted pumpkin leaf, okra, African spinach, and water leaf) were studied.
Abstract: Four fresh vegetables (fluted pumpkin leaf, okra, African spinach, and water leaf) were studied. Determinations were made of the amounts of ascorbic acid and total carotenoids in fresh, wilted and blanched begetables as well as in fresh and blanched vegetables stored at −10°C and 5°C. Results showed that wilting accounted for the highest losses in both ascorbic acid and carotenoids in all vegetables investigated. The least losses in the two nutrients were observed in blanched vegetables. In general carotenoid was more stable to the different treatments than ascorbic acid.
23 citations
TL;DR: Crude protein, amino acid composition and protein quality of horse bean (Mucuna urens) were studied and it was found that essential aminoacid composition was similar to that of isolated soya bean protein.
Abstract: Crude protein, amino acid composition and protein quality of horse bean (Mucuna urens) were studied. Crude protein of the defatted bean was 20.2%. Essential amino acid composition was similar to that of isolated soya bean protein.
12 citations
TL;DR: In this article, the authors report the findings of a study based on two textile factories from the Hausa and two from the Ibo cultural groups in Nigeria in order to investigate the effect of cultural influences on workplace industrial relations.
Abstract: Although much interest is being directed towards the study of cultural influences on management and organisation, little attention is given to the effect of these influences on workplace industrial relations. This article reports the findings of a study based on two textile factories from the Hausa and two from the Ibo cultural groups in Nigeria.
10 citations
TL;DR: In this paper, polysulfone membranes were synthesized and their separation properties were studied to check the usability of this type of membranes in decolorizing aqueous solutions of organic dyes by ultrafiltration.
Abstract: Polysulfone membranes were synthesized and their separation properties were studied to check the usability of this type of membranes in decolorizing aqueous solutions of organic dyes by ultrafiltration. The membranes were prepared from 15-percent (wt.%) polysulfone solution in dimethyl-formamide and formed on a glass support. The casting solution had different initial temperatures. The membrane thickness was between 50 and 115 μm. Experiments were carried out under static conditions and involved six organic dyes having molecular weights between 291 and 1048.2. The dye concentration in the aqueous solution was 100 gm−3. The pressure applied was varied between 0.5 and 2.5 MPa. Separation properties of the membranes were found to be better with thinner membranes and lower temperatures of the casting solution. The membranes arc capable of retaining 100 percent of organic dyes (of a molecular weight of above 800) irrespective of the casting parameters and of the pressure applied. The volume flows of dye solutions through the membranes varied from 0.05 to 0.20 m3m−2day−1 (at 2.5 MPa) depending on the casting parameters.
5 citations
TL;DR: In this paper, a glass neodymium laser working in the ordinary generation regime (λ = 1.06 μ m, E = 6 J, τ = 2 ms) was used to irradiate 45 steel and MO60 brass with the surface roughness ranging from 0.5 ÷ 8 μ m.
2 citations