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Articles by Esref Isik
Total Records ( 4 ) for Esref Isik
  Esref Isik and Nazmi Izli
  The physical and mechanical properties of dent corn seeds were determined as a function of moisture content in the range of 11.14-24.07% dry basis (d.b.). The average length, width and thickness were 10.890, 8.173 and 4.466 mm, at a moisture content of 11.14% d.b., respectively. In the above moisture range, the arithmetic and geometric mean diameters and sphericity increased from 7.843-8.448 mm, from 7.352-7.943 mm and from 0.675-0.689, respectively, in the moisture range from 11.14-24.07% d.b. Studies on rewetted dent corn seeds showed that the thousand seed mass increased from 430-542 g, the projected area from 54.46-68.90 mm2, the true density from 995.09-1100.10 kg m-3, the porosity from 29.60-44.51% and the terminal velocity from 6.20-7.50 m sec-1. The bulk density decreased from 700.50-610.50 kg m-3 with an increase in the moisture content range of 11.14-24.07% d.b. The static coefficient of friction of dent corn seeds increased the logarithmic against surfaces of six structural materials, namely, rubber (0.42-0.51), aluminum (0.41-0.49), stainless steel (0.31-0.36), galvanized iron (0.31-0.39), glass (0.27-0.33) and MDF (medium density fiberboard) (0.28-0.35) as the moisture content increased from 11.14-24.07% d.b. The shelling resistance of dent corn seeds decreased as the moisture content increased from 116.13-80.44 N.
  Esref Isik , Yucel Tekin and Rasim Okursoy
  This study was carried out in order to reveal the agricultural mechanization potential of Turkey, who has been trying to integrate with the EU to establish the current problems in agricultural mechanization and to find permanent solutions to those problems. In this study, the recent agricultural mechanization data and the values regarding the mechanization index are compared to the ones of the member states and candidate states of the European Union. A significant structural variation has been observed in Turkey’s agriculture however the current agriculture and mechanization potential is much better than many candidate states to be integrated with the EU Generally, the data regarding the western regions of Turkey are higher than the ones belonging to the member states of the EU and the candidate states if you consider the situation in the mechanization process.
  Halil Unal , Esref Isik and Huseyin Can Alpsoy
  The physical properties of black-eyed pea were evaluated as a function of moisture content. In the moisture range from 10.82 to 31.76% d.b., the dimensions of the major (length), medium (width) and minor (thickness) axes varied from 9.15 to 10.45 mm, .67 to 7.31 mm and 6.01 to 6.55 mm, respectively. In the above moisture range, the arithmetic and geometric mean diameters increased from 7.28 to 8.10 mm and from 7.16 to 7.93 mm, respectively, while the sphericity decreased from 0.783 to 0.761. Thousand grain mass, surface area and projected area increased from 245.4 to 279.3 g, from 161.22 to 198.38 mm2 and from 57.75 to 68.18 mm2, respectively. In the moisture range from 10.82 to 31.76% d.b., the bulk density of the rewetted grain decreased from 637.80 to 602.48 kg m-3, true density increased from 1064.66 to 1205.99 kg m-3, porosity increased from 40.05 to 49.60%. The terminal velocity and angle of repose increased linearly from 4.98 to 5.44 m s-1 and 20.91 to 27.69°, respectively. The static coefficient of friction increased on six structural surfaces namely, rubber (0.380-0.434), galvanised iron (0.355-0.399), aluminium (0.346-0.383), stainless steel (0.333-0.375), glass (0.323-0.374) and medium density fibreboard (0.278-0.342) as the moisture content increased from 10.82 to 31.76% d.b.. The shelling resistance of black-eyed pea decreased as the moisture content increased and the highest force were obtained while loading along the Z-axis (thickness).
  Yucel Tekin , Esref Isik , Halil Unal and Rasim Okursoy
  The physical properties of Turkish Göynük Bombay bean grains were determined as a function of moisture content in the range of 10.25-25.6% dry basis (d.b.). The average length, width and thickness were 22.60, 13.57 and 10.25 mm, at a moisture content of 10.25% d.b., respectively. In the above moisture range, the arithmetic and geometric mean diameters increased from 15.477 to 16.283 mm and from 14.617 to 14.825 mm, respectively, while the sphericity decreased from 0.734 to 0.599. In the moisture range from 10.25 to 25.6% d.b., Studies on rewetted Turkish Göynük Bombay bean grains showed that the thousand grain mass increased from 1700 to 2170 g, the projected area from 185.80 to 225.44 mm2, the true density from 1301.60 to 1452.80 kg m-3,the porosity from 46.287 to 63.047% and the terminal velocity from 6.20 to 6.98 m sec-1.The bulk density decreased from 664.95 to 536.19 kg m-3 with an increase in the moisture content range of 10.25-25.6% d.b. The static coefficient of friction of Turkish Gunk Bombay bean grains increased the linearly against surfaces of six structural materials, namely, rubber (0.41-0.60), aluminum (0.33-0.48), stainless steel (0.29-0.40), galvanized iron (0.32-0.43), glass (0.28-0.40) and mdf (medium density fiberboard) (0.24-0.36) as the moisture content increased from 10.25 to 25.6% d.b. The shelling resistance of Turkish Göynük Bombay beans grain decreased as the moisture content increased from 100.76 to 59.01 N.
 
 
 
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