Comparison of artificial neural network and fuzzy logic models for prediction of long-term compressive strength of silica fume concrete

In this study, an artificial neural network (ANN) and fuzzy logic (FL) study were developed to predict the compressive strength of silica fume concrete. A data set of a laboratory work, in which a total of 48 concretes were produced, was utilized in the ANNs and FL study. The concrete mixture parameters were four different water-cement ratios, three different cement dosages and three partial silica fume replacement ratios. Compressive strength of moist cured specimens was measured at five different ages. The obtained results with the experimental methods were compared with ANN and FL results. The results showed that ANN and FL can be alternative approaches for the predicting of compressive strength of silica fume concrete. © 2009 Elsevier Ltd. All rights reserved

EFFECTS OF MOLDSTOP (R) ON AFLATOXICOSIS IN QUAILS

ALTINTAS, Levent/0000-0002-5148-723XWOS: 000262248800015This study was conducted to evaluate the toxic effects of anatoxin (AF) oil the growth performance of quails, and to determine the preventive efficacy of MOLDSTOP (R) (calcium formate, calcium propionate, citric acid, sorbic acid, acetic acid, and carrier). A total of 60 one-clay-old quails (Coturnix coturnix japonica) of both sexes were equally divided into four experimental groups each comprising of five replicates of three birds. The supplementation of diet with AF decreased significantly (P<0.001) the feed consumption. The 0.5% addition of MOLDSTOP (R) to the AF diet did not significantly prevent or reduce negative effect of AF on feed consumption at any time period. Light microscopic examination demonstrated that the addition of MOLDSTOP (R) did not decrease flat deposition Caused by the toxin, and besides, an electron microscopic examination indicated the reorganisation in the endoplasmic reticulum and increase in the number of ribosomes and polisomes compared to the AF plus MOLDSTOP (R) group. The data indicated that the addition of MOLDSTOP (R) to diets containing AF did not prevent the negative effects of AF observed in the quail