Yazar "Sangun, Levent" seçeneğine göre listele

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    Canonical Correlation Analysis for Determination of Relationships Between Different Length Measurements and Body Weights of Common Cuttlefish (Sepia officinalis)
    (Medwell Online, 2012) Sangun, Levent; Cankaya, Soner; Duysak, Onder
    In this study, canonical correlation analysis was applied to estimate relationships between length characters mantle length (cm), upper hood length (cm), lower hood length (cm), tittle bone line zone length (cm), cuttle bone free zone length (cm) and weights characters body weight (g), stomach weight (g), stomach wall weight (g), digestive gland weight (g) of 697 cuttlefish (Sepia officinalis) populations caught from Iskenderun bay from 2006-2007, Eastern Mediterranean region, Turkey. The first 3 of the estimated canonical correlation coefficients between the pairs of canonical variables were found significant (0.949, 0.358, 0.294 and p<0.011. The results obtained from canonical correlation analysis indicated that mantle length had largest contribution for the explanatory capacity of canonical variables estimated from length characters of 697 cuttlefish (Sepia officinalis) when compared with other length characters while body weight had largest contribution for the explanatory capacity of canonical variables estimated from weight characters when compared with other weight characters. The results of this study showed that mantle lenght should be used with the aim of estimating weight per Sepia officinalis individuals in common cuttlefish genotypes.
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    Determination of the relationship among air velocity, cooling efficiency and temperature decrease at a cellulose based evaporative cooling pad
    (Academic Journals, 2010) Dagtekin, Metin; Karaca, Cengiz; Sangun, Levent; Yildiz, Yilmaz
    The aim of this study is to determine the relationship between air velocity, cooling efficiency and decrease of the temperature of the air passing the pad, at a cellulose based evaporative cooling pad and to gain handy information for the persons working on this subject. In the study, cellulose based evaporative cooling pad (CELdek R 7060-15) was handled as material. As for the velocity of air passing through the pad 0.5, 1.0 and 2.0 ms(-1) values were selected. Based on the measurement results, cooling efficiency and provided decrease of the temperature of the air passing the pad, were calculated. As a result of the research, cooling activities calculated between 3 different air velocities were found significant in the statistical sense ( p < 0.01) for the measurement periods except II. measurement periods. As for the temperature decrease, the difference between other measurement periods except II. and III. measurement periods, were also found significant. The highest cooling activity and temperature decreases were reached at 0.5 and 1.0 ms(-1) air velocities. It can be said that according to statistical data, optimal air velocity for the Mediterranean climatic conditions should be between 0.5 and 1.0 ms(-1), among the selected air velocities.
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    Öğe
    Width/Length-Weight and Width-Length Relationships for 8 Crab Species from the North-Eastern Mediterranean Coast of Turkey
    (Medwell Online, 2009) Sangun, Levent; Tureli, Canan; Akamca, Erhan; Duysak, Onder
    In this study, relationships between width/length-weight and width-length by sex and combine were estimated 1133 individuals belonging to 8 species from 5 families in the North-eastern Mediterranean coast of Turkey. Regression coefficient between the regression of W-CL, W-CW and CL-CW for female, male and both were found very high (p<0.001) and the median value of b W-CL were 3.135, 3.132 and 3.081; W-CW were 3.135, 3.132 and 3.081, respectively. The r(2) values ranged from 0.91-0.99.