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Öğe Breaking of apricot pits by using a mechanical system(Asian Network for Scientific Information, 2007) Polat R.; Aktas T.; Gezer I.; Atay U.; 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.Öğe Determination of relationships between spring rigidity and some other tree properties in apricot trees with respect to harvesting technique(1999) Gezer I.In this research, the aim is to determine the effect of branch diameter and age of tree on spring rigidity which is very important is the selection of shaker and harvesting paramaters such as stroke and frequency in mechanical apricot harvest. As a result of this research, it is found out that the branch diameter and age of tree has an effect on spring rigidity and that the spring rigity increases nearly as a linear with respect to branch diameter and the age of tree.Öğe Determination of the energy balance of the sugar beet plant(2003) Hacisefero?ullari H.; Acaro?lu M.; Gezer I.Energy balance is an important indicator that shows the efficiency of production methods and compares them. The energy balance of the sugar beet, which has an important place in the agricultural production of Turkey, was calculated for middle Anatolia conditions (Konya region). The sugar beet yield was 69 ton/ha (dry matter 25%), and the leaves yield was 33.8 ton/ha (dry matter 16%). The energy value of sugar beets and its leaf were 16.80 and 16.40 MJ/kg, respectively. The energy of fertilizer had the biggest share in total energy inputs, followed by the energy of diesel fuel and oil with a 43.31% share. Fuel used in irrigation had the most important share with 54.60% in totally used fuel and oil energy. To decrease energy inputs in sugar beet agriculture, it is necessary to optimize fertilizer application methods and irrigation methods. The previously found values support the results found in this study. Despite the disadvantages of the sugar law passed in 2001, sugar beet agriculture will maintain its importance in Turkey because of its high efficiency and high energy output.Öğe Mechanical harvesting of almond with an inertia type limb shaker(Asian Network for Scientific Information, 2007) Polat R.; Güner M.; Dursun E.; Erdogan D.; Gezer I.; Cem Bilim H.I.An inertia type limb shaker were developed to mechanically harvest of tree fruits. The shaker, hydraulically powered and driven by the tractor power take off, was used for mechanical harvesting of almond. The study included optimum frequency and amplitude to obtain maximum fruit removal percentage, harvesting rate of the shaker. Harvesting rate was calculated by weighing both the harvested and unharvested almonds. In the tests the limbs of trees were shaken at 40 and 50 mm amplitude of the connecting rod attached to the crankshaft and 10, 15, 20 Hz frequencies. The results were analysed according to the maximum fruit removal percentage. Shaking time was 10 s for all of the frequency and amplitude tests. Maximum fruit removal (97 and 100%) was achieved by operating the shaker at amplitude of 50 mm and a frequency of 15 and 20 Hz. Therefore it can be suggested an amplitude of 50 mm and a frequency of 20 Hz for mechanical harvesting of almond. Moreover, the appropriate harvesting time for nonpearl variety of almond was found the second week of August. Because, the ratio of Fruit Detachament Force (FDF) to Weight (W) at different maturity times was found 1.8 N/g at the second week of August. © 2007 Asian Network for Scientific Information.
