Yazar "Atak, Mehmet" seçeneğine göre listele

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  • Küçük Resim Yok
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    EFFECT OF REDUCED AND INCREASED HERBICIDES DOSES ON WEED CONTROL STRATEGIES IN CHICKPEA (CICER ARIETINUM L.)
    (PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2018) Kaya, Muharrem; Sener, Aykut; Karaman, Ruziye; Atak, Mehmet; Kan, Asuman
    This study was conducted to determine the effects of 50% reduced and 50% increased doses of some herbicides used in chickpea cultivation on seed yield and mineral content of the seed. Field experiments were established in Isparta province of Turkey during 2016-2017 plant growing season. Experiments were conducted to the completely randomized block design with 3 repetitions. Fourteen different weed control treatments were tested (control (T1), hoeing (T2) suggested doses and 50% reduced / increased doses of herbicides that contain active substances of linuron (T3-T5), aclonifen (T6-T8), pendimethalin (T9-T11) isoxaflutale + cyprosulfamide (T12-T14)), respectively. As plant material, drought and lodging tolerant ILC 195 chickpea cultivar seeds were used. Results showed that chlorophyll a, chlorophyll b content of green part of plants, phosphorus, potassium, calcium, iron, zinc, protein content of seeds, 100 seed weight and seed yield were significantly affected by the herbicides treatments. The highest positive effects on both the seed yield and the chemical composition of the seed were obtained at the dose of 125 ml/ha and 250 ml/ha of isoxaflutale + cyprosulfamide (240 g/l) and at 1500 ml/ha and 3000 ml/ha of pendimethalin herbicide treatments in chick pea cultivation.
  • Küçük Resim Yok
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    Etkileşimli Bulanık Çok Amaçlı Doğrusal Programlama ile Bütünleşik Üretim Planlama: Hidrolik Pompa İmalatçısı Firma Örnek Olayı
    (2002) Paksoy, Turan; Atak, Mehmet
    Bu çalışmada, gerçek dünyanın bulanık olan yapısını modelleyebilen ve Analitik Hiyerarşi Yöntemi ile kullanıcı ile etkileşimli olarak çalışan, onun tercihleri doğrultusunda amaçları önceliklendiren ve çözüm aşamasında da bu etkileşimi sürdürerek en iyi çözüme ulaşmayı amaç edinen, sisteme daha gerçekçi bir yaklaşım ile hem bulanıklığı hem de çok amaçlılığı içeren bir yöntem kullanılmış ve bir endüstriyel üretim sisteminde bütünleşik üretim planı gerçekleştirilmiştir.
  • Küçük Resim
    Öğe
    A Stochastic Approach to Interactive Fuzzy Multi-Objective Linear Programming for Aggregate Production Planning
    (2005) Paksoy, Turan; Atak, Mehmet
    This study aims to combine probability theory and fuzzy set theory for solving multi-objective aggregate production planning (APP) problems. Herein, a multi-objective APP model is developed and an approach based on the interactive fuzzy linear programming is introduced to solve the APP problems that have fuzzy coefficients, random demands and crisp variables. Applying the model, a decision maker can represent his/her human resources policies regarding the overtime and subcontract production. In the following, initially, the stochastic aspect of the model is worked out. Next, the optimal solution is found by using an interactive method that decides the best compromised solution among the nondominated solution sets at each step. Finally, a numerical example is presented to clarify the features of the proposed approach.