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    Breaking of apricot pits by using a mechanical system
    (Asian Network for Scientific Information, 2007) Polat, R.; Aktaş, Türkan; Gezer, Isaac; Atay, Ümran; Bilim, H.I.C.
    The objective of this research was to investigate the effects of heating process and warping effect on breaking of apricot pits and obtaining of its kernel without damage. For this aim, heating process (350°C) was applied to apricot pits. Heated pits were fallen onto the rotating disc and they were warped to warping wall by centrifuge effect. Warping velocity was adjusted by changing of rotating disc revolution that was driven by an electric engine. Three different disc revolution namely 400, 500 and 600 min-1 and 4 different moisture contents of apricot pits namely 6.7, 15.5, 22.2 and 31.5% were used in the experiments. As a result, it was found that increasing of moisture content was increased amount of breaking and also sound kernel ratio. Increasing of disc revolution increased ratio of damaged kernel. The highest breaking amount was determined for experiment with heated pits that had 31.5% moisture content and warped with 400 min-1 disk revolution. © 2007 Asian Network for Scientific Information.
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    Stray voltage problems in dairy farms and effects on animal behavior
    (2008) Gönülol, Erkan; Polat, R.; Ülger, Poyraz; Kayişo?lu, Birol; Kuşcu, H.; Toruk, F.; Polat, Cemal
    Stray voltage is a small voltage measured between two points that can simultaneously be contacted bya cow. A current will flow between these points. The amount of current depends on the voltage and theresistance of the animal. Reactions of animals to mild electric shocks caused by stray voltage havebeen reported to include behavioral changes, changes in milking characteristics of dairy cows andchanges in production performance. This study evaluated the presence or absence of stray voltage ondairy farms. Questionnaires related to the history of the situation and animal reactions were also usedin the study. Experiments were carried out on 51 dairy farms in Turkey. All farms had more than 30milking cows which are milked by using pipe line milking systems. Stray voltage problems were foundon 12 farms (23%). The relationship between the presence of stray voltage and behavioral change onthe dairy farms was statistically significant (P=0,002). Based on the results, stray voltage sources onthe farms were mostly attributed to faulty wiring, faulty equipment and improper grounding. © Published by the College of Agriculture.